quick patch for adding 3g2 support to ffmpeg (muxer and demuxer). No movie fragment...
[libav.git] / libavcodec / h264.c
CommitLineData
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1/*
2 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
20
21/**
22 * @file h264.c
23 * H.264 / AVC / MPEG4 part10 codec.
24 * @author Michael Niedermayer <michaelni@gmx.at>
25 */
26
27#include "common.h"
28#include "dsputil.h"
29#include "avcodec.h"
30#include "mpegvideo.h"
31#include "h264data.h"
32#include "golomb.h"
33
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34#include "cabac.h"
35
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36#undef NDEBUG
37#include <assert.h>
38
39#define interlaced_dct interlaced_dct_is_a_bad_name
40#define mb_intra mb_intra_isnt_initalized_see_mb_type
41
42#define LUMA_DC_BLOCK_INDEX 25
43#define CHROMA_DC_BLOCK_INDEX 26
44
45#define CHROMA_DC_COEFF_TOKEN_VLC_BITS 8
46#define COEFF_TOKEN_VLC_BITS 8
47#define TOTAL_ZEROS_VLC_BITS 9
48#define CHROMA_DC_TOTAL_ZEROS_VLC_BITS 3
49#define RUN_VLC_BITS 3
50#define RUN7_VLC_BITS 6
51
52#define MAX_SPS_COUNT 32
53#define MAX_PPS_COUNT 256
54
55#define MAX_MMCO_COUNT 66
56
57/**
58 * Sequence parameter set
59 */
60typedef struct SPS{
61
62 int profile_idc;
63 int level_idc;
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64 int log2_max_frame_num; ///< log2_max_frame_num_minus4 + 4
65 int poc_type; ///< pic_order_cnt_type
66 int log2_max_poc_lsb; ///< log2_max_pic_order_cnt_lsb_minus4
67 int delta_pic_order_always_zero_flag;
68 int offset_for_non_ref_pic;
69 int offset_for_top_to_bottom_field;
70 int poc_cycle_length; ///< num_ref_frames_in_pic_order_cnt_cycle
71 int ref_frame_count; ///< num_ref_frames
a15e68de 72 int gaps_in_frame_num_allowed_flag;
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73 int mb_width; ///< frame_width_in_mbs_minus1 + 1
74 int mb_height; ///< frame_height_in_mbs_minus1 + 1
75 int frame_mbs_only_flag;
76 int mb_aff; ///<mb_adaptive_frame_field_flag
77 int direct_8x8_inference_flag;
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78 int crop; ///< frame_cropping_flag
79 int crop_left; ///< frame_cropping_rect_left_offset
80 int crop_right; ///< frame_cropping_rect_right_offset
81 int crop_top; ///< frame_cropping_rect_top_offset
82 int crop_bottom; ///< frame_cropping_rect_bottom_offset
0da71265 83 int vui_parameters_present_flag;
5ff85f1d 84 AVRational sar;
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85 int timing_info_present_flag;
86 uint32_t num_units_in_tick;
87 uint32_t time_scale;
88 int fixed_frame_rate_flag;
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89 short offset_for_ref_frame[256]; //FIXME dyn aloc?
90}SPS;
91
92/**
93 * Picture parameter set
94 */
95typedef struct PPS{
96 int sps_id;
97 int cabac; ///< entropy_coding_mode_flag
98 int pic_order_present; ///< pic_order_present_flag
99 int slice_group_count; ///< num_slice_groups_minus1 + 1
100 int mb_slice_group_map_type;
101 int ref_count[2]; ///< num_ref_idx_l0/1_active_minus1 + 1
102 int weighted_pred; ///< weighted_pred_flag
103 int weighted_bipred_idc;
104 int init_qp; ///< pic_init_qp_minus26 + 26
105 int init_qs; ///< pic_init_qs_minus26 + 26
106 int chroma_qp_index_offset;
107 int deblocking_filter_parameters_present; ///< deblocking_filter_parameters_present_flag
108 int constrained_intra_pred; ///< constrained_intra_pred_flag
109 int redundant_pic_cnt_present; ///< redundant_pic_cnt_present_flag
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110}PPS;
111
112/**
113 * Memory management control operation opcode.
114 */
115typedef enum MMCOOpcode{
116 MMCO_END=0,
117 MMCO_SHORT2UNUSED,
118 MMCO_LONG2UNUSED,
119 MMCO_SHORT2LONG,
120 MMCO_SET_MAX_LONG,
121 MMCO_RESET,
122 MMCO_LONG,
123} MMCOOpcode;
124
125/**
126 * Memory management control operation.
127 */
128typedef struct MMCO{
129 MMCOOpcode opcode;
130 int short_frame_num;
131 int long_index;
132} MMCO;
133
134/**
135 * H264Context
136 */
137typedef struct H264Context{
138 MpegEncContext s;
139 int nal_ref_idc;
140 int nal_unit_type;
141#define NAL_SLICE 1
142#define NAL_DPA 2
143#define NAL_DPB 3
144#define NAL_DPC 4
145#define NAL_IDR_SLICE 5
146#define NAL_SEI 6
147#define NAL_SPS 7
148#define NAL_PPS 8
149#define NAL_PICTURE_DELIMITER 9
150#define NAL_FILTER_DATA 10
151 uint8_t *rbsp_buffer;
152 int rbsp_buffer_size;
153
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154 /**
155 * Used to parse AVC variant of h264
156 */
157 int is_avc; ///< this flag is != 0 if codec is avc1
158 int got_avcC; ///< flag used to parse avcC data only once
159 int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
160
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161 int chroma_qp; //QPc
162
163 int prev_mb_skiped; //FIXME remove (IMHO not used)
164
165 //prediction stuff
166 int chroma_pred_mode;
167 int intra16x16_pred_mode;
168
169 int8_t intra4x4_pred_mode_cache[5*8];
170 int8_t (*intra4x4_pred_mode)[8];
171 void (*pred4x4 [9+3])(uint8_t *src, uint8_t *topright, int stride);//FIXME move to dsp?
172 void (*pred8x8 [4+3])(uint8_t *src, int stride);
173 void (*pred16x16[4+3])(uint8_t *src, int stride);
174 unsigned int topleft_samples_available;
175 unsigned int top_samples_available;
176 unsigned int topright_samples_available;
177 unsigned int left_samples_available;
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178 uint8_t (*top_border)[16+2*8];
179 uint8_t left_border[17+2*9];
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180
181 /**
182 * non zero coeff count cache.
183 * is 64 if not available.
184 */
bd9ea6a4 185 uint8_t non_zero_count_cache[6*8] __align8;
53c05b1e 186 uint8_t (*non_zero_count)[16];
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187
188 /**
189 * Motion vector cache.
190 */
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191 int16_t mv_cache[2][5*8][2] __align8;
192 int8_t ref_cache[2][5*8] __align8;
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193#define LIST_NOT_USED -1 //FIXME rename?
194#define PART_NOT_AVAILABLE -2
195
196 /**
197 * is 1 if the specific list MV&references are set to 0,0,-2.
198 */
199 int mv_cache_clean[2];
200
201 int block_offset[16+8];
202 int chroma_subblock_offset[16]; //FIXME remove
203
204 uint16_t *mb2b_xy; //FIXME are these 4 a good idea?
205 uint16_t *mb2b8_xy;
650cec0c 206 int b_stride; //FIXME use s->b4_stride
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207 int b8_stride;
208
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209 int halfpel_flag;
210 int thirdpel_flag;
211
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212 int unknown_svq3_flag;
213 int next_slice_index;
214
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215 SPS sps_buffer[MAX_SPS_COUNT];
216 SPS sps; ///< current sps
217
218 PPS pps_buffer[MAX_PPS_COUNT];
219 /**
220 * current pps
221 */
222 PPS pps; //FIXME move tp Picture perhaps? (->no) do we need that?
223
224 int slice_num;
225 uint8_t *slice_table_base;
226 uint8_t *slice_table; ///< slice_table_base + mb_stride + 1
227 int slice_type;
228 int slice_type_fixed;
229
230 //interlacing specific flags
231 int mb_field_decoding_flag;
232
233 int sub_mb_type[4];
234
235 //POC stuff
236 int poc_lsb;
237 int poc_msb;
238 int delta_poc_bottom;
239 int delta_poc[2];
240 int frame_num;
241 int prev_poc_msb; ///< poc_msb of the last reference pic for POC type 0
242 int prev_poc_lsb; ///< poc_lsb of the last reference pic for POC type 0
243 int frame_num_offset; ///< for POC type 2
244 int prev_frame_num_offset; ///< for POC type 2
245 int prev_frame_num; ///< frame_num of the last pic for POC type 1/2
246
247 /**
248 * frame_num for frames or 2*frame_num for field pics.
249 */
250 int curr_pic_num;
251
252 /**
253 * max_frame_num or 2*max_frame_num for field pics.
254 */
255 int max_pic_num;
256
257 //Weighted pred stuff
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258 int use_weight;
259 int use_weight_chroma;
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260 int luma_log2_weight_denom;
261 int chroma_log2_weight_denom;
262 int luma_weight[2][16];
263 int luma_offset[2][16];
264 int chroma_weight[2][16][2];
265 int chroma_offset[2][16][2];
9f2d1b4f 266 int implicit_weight[16][16];
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267
268 //deblock
53c05b1e 269 int deblocking_filter; ///< disable_deblocking_filter_idc with 1<->0
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270 int slice_alpha_c0_offset;
271 int slice_beta_offset;
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272
273 int redundant_pic_count;
274
275 int direct_spatial_mv_pred;
5ad984c9 276 int dist_scale_factor[16];
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277
278 /**
279 * num_ref_idx_l0/1_active_minus1 + 1
280 */
281 int ref_count[2];// FIXME split for AFF
282 Picture *short_ref[16];
283 Picture *long_ref[16];
284 Picture default_ref_list[2][32];
285 Picture ref_list[2][32]; //FIXME size?
286 Picture field_ref_list[2][32]; //FIXME size?
a4dae92b 287 Picture *delayed_pic[16]; //FIXME size?
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288
289 /**
290 * memory management control operations buffer.
291 */
292 MMCO mmco[MAX_MMCO_COUNT];
293 int mmco_index;
294
295 int long_ref_count; ///< number of actual long term references
296 int short_ref_count; ///< number of actual short term references
297
298 //data partitioning
299 GetBitContext intra_gb;
300 GetBitContext inter_gb;
301 GetBitContext *intra_gb_ptr;
302 GetBitContext *inter_gb_ptr;
303
304 DCTELEM mb[16*24] __align8;
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305
306 /**
307 * Cabac
308 */
309 CABACContext cabac;
310 uint8_t cabac_state[399];
311 int cabac_init_idc;
312
313 /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0,1,2), 0x0? luma_cbp */
314 uint16_t *cbp_table;
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315 int top_cbp;
316 int left_cbp;
693399ba 317 /* chroma_pred_mode for i4x4 or i16x16, else 0 */
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318 uint8_t *chroma_pred_mode_table;
319 int last_qscale_diff;
9e528114 320 int16_t (*mvd_table[2])[2];
bd9ea6a4 321 int16_t mvd_cache[2][5*8][2] __align8;
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322 uint8_t *direct_table;
323 uint8_t direct_cache[5*8];
e5017ab8 324
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325}H264Context;
326
327static VLC coeff_token_vlc[4];
328static VLC chroma_dc_coeff_token_vlc;
329
330static VLC total_zeros_vlc[15];
331static VLC chroma_dc_total_zeros_vlc[3];
332
333static VLC run_vlc[6];
334static VLC run7_vlc;
335
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336static void svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp);
337static void svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc);
53c05b1e 338static void filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr);
8b82a956 339
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340static inline uint32_t pack16to32(int a, int b){
341#ifdef WORDS_BIGENDIAN
342 return (b&0xFFFF) + (a<<16);
343#else
344 return (a&0xFFFF) + (b<<16);
345#endif
346}
347
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348/**
349 * fill a rectangle.
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350 * @param h height of the rectangle, should be a constant
351 * @param w width of the rectangle, should be a constant
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352 * @param size the size of val (1 or 4), should be a constant
353 */
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354static inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){ //FIXME ensure this IS inlined
355 uint8_t *p= (uint8_t*)vp;
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356 assert(size==1 || size==4);
357
358 w *= size;
359 stride *= size;
360
bd9ea6a4 361 assert((((int)vp)&(FFMIN(w, STRIDE_ALIGN)-1)) == 0);
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362//FIXME check what gcc generates for 64 bit on x86 and possible write a 32 bit ver of it
363 if(w==2 && h==2){
364 *(uint16_t*)(p + 0)=
365 *(uint16_t*)(p + stride)= size==4 ? val : val*0x0101;
366 }else if(w==2 && h==4){
367 *(uint16_t*)(p + 0*stride)=
368 *(uint16_t*)(p + 1*stride)=
369 *(uint16_t*)(p + 2*stride)=
370 *(uint16_t*)(p + 3*stride)= size==4 ? val : val*0x0101;
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371 }else if(w==4 && h==1){
372 *(uint32_t*)(p + 0*stride)= size==4 ? val : val*0x01010101;
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373 }else if(w==4 && h==2){
374 *(uint32_t*)(p + 0*stride)=
375 *(uint32_t*)(p + 1*stride)= size==4 ? val : val*0x01010101;
376 }else if(w==4 && h==4){
377 *(uint32_t*)(p + 0*stride)=
378 *(uint32_t*)(p + 1*stride)=
379 *(uint32_t*)(p + 2*stride)=
380 *(uint32_t*)(p + 3*stride)= size==4 ? val : val*0x01010101;
381 }else if(w==8 && h==1){
382 *(uint32_t*)(p + 0)=
383 *(uint32_t*)(p + 4)= size==4 ? val : val*0x01010101;
384 }else if(w==8 && h==2){
385 *(uint32_t*)(p + 0 + 0*stride)=
386 *(uint32_t*)(p + 4 + 0*stride)=
387 *(uint32_t*)(p + 0 + 1*stride)=
388 *(uint32_t*)(p + 4 + 1*stride)= size==4 ? val : val*0x01010101;
389 }else if(w==8 && h==4){
390 *(uint64_t*)(p + 0*stride)=
391 *(uint64_t*)(p + 1*stride)=
392 *(uint64_t*)(p + 2*stride)=
393 *(uint64_t*)(p + 3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
394 }else if(w==16 && h==2){
395 *(uint64_t*)(p + 0+0*stride)=
396 *(uint64_t*)(p + 8+0*stride)=
397 *(uint64_t*)(p + 0+1*stride)=
398 *(uint64_t*)(p + 8+1*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
399 }else if(w==16 && h==4){
400 *(uint64_t*)(p + 0+0*stride)=
401 *(uint64_t*)(p + 8+0*stride)=
402 *(uint64_t*)(p + 0+1*stride)=
403 *(uint64_t*)(p + 8+1*stride)=
404 *(uint64_t*)(p + 0+2*stride)=
405 *(uint64_t*)(p + 8+2*stride)=
406 *(uint64_t*)(p + 0+3*stride)=
407 *(uint64_t*)(p + 8+3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
408 }else
409 assert(0);
410}
411
46f2f05f 412static inline void fill_caches(H264Context *h, int mb_type, int for_deblock){
0da71265 413 MpegEncContext * const s = &h->s;
7bc9090a 414 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
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415 int topleft_xy, top_xy, topright_xy, left_xy[2];
416 int topleft_type, top_type, topright_type, left_type[2];
417 int left_block[4];
418 int i;
419
420 //wow what a mess, why didnt they simplify the interlacing&intra stuff, i cant imagine that these complex rules are worth it
421
422 if(h->sps.mb_aff){
423 //FIXME
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424 topleft_xy = 0; /* avoid warning */
425 top_xy = 0; /* avoid warning */
426 topright_xy = 0; /* avoid warning */
0da71265 427 }else{
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428 topleft_xy = mb_xy-1 - s->mb_stride;
429 top_xy = mb_xy - s->mb_stride;
430 topright_xy= mb_xy+1 - s->mb_stride;
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431 left_xy[0] = mb_xy-1;
432 left_xy[1] = mb_xy-1;
433 left_block[0]= 0;
434 left_block[1]= 1;
435 left_block[2]= 2;
436 left_block[3]= 3;
437 }
438
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439 if(for_deblock){
440 topleft_type = h->slice_table[topleft_xy ] < 255 ? s->current_picture.mb_type[topleft_xy] : 0;
441 top_type = h->slice_table[top_xy ] < 255 ? s->current_picture.mb_type[top_xy] : 0;
442 topright_type= h->slice_table[topright_xy] < 255 ? s->current_picture.mb_type[topright_xy]: 0;
443 left_type[0] = h->slice_table[left_xy[0] ] < 255 ? s->current_picture.mb_type[left_xy[0]] : 0;
444 left_type[1] = h->slice_table[left_xy[1] ] < 255 ? s->current_picture.mb_type[left_xy[1]] : 0;
445 }else{
446 topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
447 top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
448 topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
449 left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
450 left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
451 }
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452
453 if(IS_INTRA(mb_type)){
454 h->topleft_samples_available=
455 h->top_samples_available=
456 h->left_samples_available= 0xFFFF;
457 h->topright_samples_available= 0xEEEA;
458
459 if(!IS_INTRA(top_type) && (top_type==0 || h->pps.constrained_intra_pred)){
460 h->topleft_samples_available= 0xB3FF;
461 h->top_samples_available= 0x33FF;
462 h->topright_samples_available= 0x26EA;
463 }
464 for(i=0; i<2; i++){
465 if(!IS_INTRA(left_type[i]) && (left_type[i]==0 || h->pps.constrained_intra_pred)){
466 h->topleft_samples_available&= 0xDF5F;
467 h->left_samples_available&= 0x5F5F;
468 }
469 }
470
471 if(!IS_INTRA(topleft_type) && (topleft_type==0 || h->pps.constrained_intra_pred))
472 h->topleft_samples_available&= 0x7FFF;
473
474 if(!IS_INTRA(topright_type) && (topright_type==0 || h->pps.constrained_intra_pred))
475 h->topright_samples_available&= 0xFBFF;
476
477 if(IS_INTRA4x4(mb_type)){
478 if(IS_INTRA4x4(top_type)){
479 h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];
480 h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];
481 h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];
482 h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
483 }else{
484 int pred;
6fbcaaa0 485 if(!top_type || (IS_INTER(top_type) && h->pps.constrained_intra_pred))
0da71265 486 pred= -1;
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487 else{
488 pred= 2;
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489 }
490 h->intra4x4_pred_mode_cache[4+8*0]=
491 h->intra4x4_pred_mode_cache[5+8*0]=
492 h->intra4x4_pred_mode_cache[6+8*0]=
493 h->intra4x4_pred_mode_cache[7+8*0]= pred;
494 }
495 for(i=0; i<2; i++){
496 if(IS_INTRA4x4(left_type[i])){
497 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];
498 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
499 }else{
500 int pred;
6fbcaaa0 501 if(!left_type[i] || (IS_INTER(left_type[i]) && h->pps.constrained_intra_pred))
0da71265 502 pred= -1;
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503 else{
504 pred= 2;
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505 }
506 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
507 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
508 }
509 }
510 }
511 }
512
513
514/*
5150 . T T. T T T T
5161 L . .L . . . .
5172 L . .L . . . .
5183 . T TL . . . .
5194 L . .L . . . .
5205 L . .. . . . .
521*/
522//FIXME constraint_intra_pred & partitioning & nnz (lets hope this is just a typo in the spec)
523 if(top_type){
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524 h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][0];
525 h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][1];
526 h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][2];
527 h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3];
0da71265 528
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529 h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][7];
530 h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8];
0da71265 531
53c05b1e
MN
532 h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][10];
533 h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11];
3981c385
MN
534
535 h->top_cbp= h->cbp_table[top_xy];
0da71265
MN
536 }else{
537 h->non_zero_count_cache[4+8*0]=
538 h->non_zero_count_cache[5+8*0]=
539 h->non_zero_count_cache[6+8*0]=
540 h->non_zero_count_cache[7+8*0]=
541
542 h->non_zero_count_cache[1+8*0]=
543 h->non_zero_count_cache[2+8*0]=
544
545 h->non_zero_count_cache[1+8*3]=
3981c385
MN
546 h->non_zero_count_cache[2+8*3]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
547
548 if(IS_INTRA(mb_type)) h->top_cbp= 0x1C0;
549 else h->top_cbp= 0;
0da71265
MN
550 }
551
552 if(left_type[0]){
53c05b1e
MN
553 h->non_zero_count_cache[3+8*1]= h->non_zero_count[left_xy[0]][6];
554 h->non_zero_count_cache[3+8*2]= h->non_zero_count[left_xy[0]][5];
555 h->non_zero_count_cache[0+8*1]= h->non_zero_count[left_xy[0]][9]; //FIXME left_block
556 h->non_zero_count_cache[0+8*4]= h->non_zero_count[left_xy[0]][12];
3981c385 557 h->left_cbp= h->cbp_table[left_xy[0]]; //FIXME interlacing
0da71265
MN
558 }else{
559 h->non_zero_count_cache[3+8*1]=
560 h->non_zero_count_cache[3+8*2]=
561 h->non_zero_count_cache[0+8*1]=
3981c385
MN
562 h->non_zero_count_cache[0+8*4]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
563
564 if(IS_INTRA(mb_type)) h->left_cbp= 0x1C0;//FIXME interlacing
565 else h->left_cbp= 0;
0da71265
MN
566 }
567
568 if(left_type[1]){
53c05b1e
MN
569 h->non_zero_count_cache[3+8*3]= h->non_zero_count[left_xy[1]][4];
570 h->non_zero_count_cache[3+8*4]= h->non_zero_count[left_xy[1]][3];
571 h->non_zero_count_cache[0+8*2]= h->non_zero_count[left_xy[1]][8];
572 h->non_zero_count_cache[0+8*5]= h->non_zero_count[left_xy[1]][11];
0da71265
MN
573 }else{
574 h->non_zero_count_cache[3+8*3]=
575 h->non_zero_count_cache[3+8*4]=
576 h->non_zero_count_cache[0+8*2]=
3981c385 577 h->non_zero_count_cache[0+8*5]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
0da71265
MN
578 }
579
580#if 1
5ad984c9
LM
581 //FIXME direct mb can skip much of this
582 if(IS_INTER(mb_type) || (IS_DIRECT(mb_type) && h->direct_spatial_mv_pred)){
0da71265
MN
583 int list;
584 for(list=0; list<2; list++){
5ad984c9 585 if((!IS_8X8(mb_type)) && !USES_LIST(mb_type, list) && !IS_DIRECT(mb_type)){
0da71265
MN
586 /*if(!h->mv_cache_clean[list]){
587 memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
588 memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
589 h->mv_cache_clean[list]= 1;
590 }*/
5ad984c9 591 continue;
0da71265
MN
592 }
593 h->mv_cache_clean[list]= 0;
594
595 if(IS_INTER(topleft_type)){
596 const int b_xy = h->mb2b_xy[topleft_xy] + 3 + 3*h->b_stride;
597 const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + h->b8_stride;
598 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
599 h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
600 }else{
601 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0;
602 h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
603 }
604
605 if(IS_INTER(top_type)){
606 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
607 const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
608 *(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0];
609 *(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1];
610 *(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2];
611 *(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3];
612 h->ref_cache[list][scan8[0] + 0 - 1*8]=
613 h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];
614 h->ref_cache[list][scan8[0] + 2 - 1*8]=
615 h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];
616 }else{
617 *(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]=
618 *(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]=
619 *(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]=
620 *(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0;
621 *(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101;
622 }
623
624 if(IS_INTER(topright_type)){
625 const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
626 const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;
627 *(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
628 h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];
629 }else{
630 *(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0;
631 h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
632 }
633
634 //FIXME unify cleanup or sth
635 if(IS_INTER(left_type[0])){
636 const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
637 const int b8_xy= h->mb2b8_xy[left_xy[0]] + 1;
638 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0]];
639 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1]];
640 h->ref_cache[list][scan8[0] - 1 + 0*8]=
641 h->ref_cache[list][scan8[0] - 1 + 1*8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0]>>1)];
642 }else{
643 *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 0*8]=
644 *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 1*8]= 0;
645 h->ref_cache[list][scan8[0] - 1 + 0*8]=
646 h->ref_cache[list][scan8[0] - 1 + 1*8]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
647 }
648
649 if(IS_INTER(left_type[1])){
650 const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
651 const int b8_xy= h->mb2b8_xy[left_xy[1]] + 1;
652 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[2]];
653 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[3]];
654 h->ref_cache[list][scan8[0] - 1 + 2*8]=
655 h->ref_cache[list][scan8[0] - 1 + 3*8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[2]>>1)];
656 }else{
657 *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 2*8]=
658 *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 3*8]= 0;
659 h->ref_cache[list][scan8[0] - 1 + 2*8]=
660 h->ref_cache[list][scan8[0] - 1 + 3*8]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
661 }
662
46f2f05f
MN
663 if(for_deblock)
664 continue;
665
0da71265
MN
666 h->ref_cache[list][scan8[5 ]+1] =
667 h->ref_cache[list][scan8[7 ]+1] =
668 h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewher else)
669 h->ref_cache[list][scan8[4 ]] =
670 h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
671 *(uint32_t*)h->mv_cache [list][scan8[5 ]+1]=
672 *(uint32_t*)h->mv_cache [list][scan8[7 ]+1]=
673 *(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewher else)
674 *(uint32_t*)h->mv_cache [list][scan8[4 ]]=
675 *(uint32_t*)h->mv_cache [list][scan8[12]]= 0;
9e528114
LA
676
677 if( h->pps.cabac ) {
678 /* XXX beurk, Load mvd */
679 if(IS_INTER(topleft_type)){
680 const int b_xy = h->mb2b_xy[topleft_xy] + 3 + 3*h->b_stride;
681 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy];
682 }else{
683 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 - 1*8]= 0;
684 }
685
686 if(IS_INTER(top_type)){
687 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
688 *(uint32_t*)h->mvd_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 0];
689 *(uint32_t*)h->mvd_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 1];
690 *(uint32_t*)h->mvd_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 2];
691 *(uint32_t*)h->mvd_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 3];
692 }else{
693 *(uint32_t*)h->mvd_cache [list][scan8[0] + 0 - 1*8]=
694 *(uint32_t*)h->mvd_cache [list][scan8[0] + 1 - 1*8]=
695 *(uint32_t*)h->mvd_cache [list][scan8[0] + 2 - 1*8]=
696 *(uint32_t*)h->mvd_cache [list][scan8[0] + 3 - 1*8]= 0;
697 }
698 if(IS_INTER(left_type[0])){
699 const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
700 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[0]];
701 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[1]];
702 }else{
703 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]=
704 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0;
705 }
706 if(IS_INTER(left_type[1])){
707 const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
708 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[2]];
709 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[3]];
710 }else{
711 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]=
712 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0;
713 }
714 *(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]=
715 *(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]=
716 *(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewher else)
717 *(uint32_t*)h->mvd_cache [list][scan8[4 ]]=
718 *(uint32_t*)h->mvd_cache [list][scan8[12]]= 0;
5ad984c9
LM
719
720 if(h->slice_type == B_TYPE){
721 fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, 0, 1);
722
723 if(IS_DIRECT(top_type)){
724 *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0x01010101;
725 }else if(IS_8X8(top_type)){
726 int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;
727 h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy];
728 h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1];
729 }else{
730 *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0;
731 }
732
733 //FIXME interlacing
734 if(IS_DIRECT(left_type[0])){
735 h->direct_cache[scan8[0] - 1 + 0*8]=
736 h->direct_cache[scan8[0] - 1 + 2*8]= 1;
737 }else if(IS_8X8(left_type[0])){
738 int b8_xy = h->mb2b8_xy[left_xy[0]] + 1;
739 h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[b8_xy];
740 h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[b8_xy + h->b8_stride];
741 }else{
742 h->direct_cache[scan8[0] - 1 + 0*8]=
743 h->direct_cache[scan8[0] - 1 + 2*8]= 0;
744 }
745 }
9e528114 746 }
0da71265 747 }
0da71265
MN
748 }
749#endif
750}
751
752static inline void write_back_intra_pred_mode(H264Context *h){
753 MpegEncContext * const s = &h->s;
7bc9090a 754 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
0da71265
MN
755
756 h->intra4x4_pred_mode[mb_xy][0]= h->intra4x4_pred_mode_cache[7+8*1];
757 h->intra4x4_pred_mode[mb_xy][1]= h->intra4x4_pred_mode_cache[7+8*2];
758 h->intra4x4_pred_mode[mb_xy][2]= h->intra4x4_pred_mode_cache[7+8*3];
759 h->intra4x4_pred_mode[mb_xy][3]= h->intra4x4_pred_mode_cache[7+8*4];
760 h->intra4x4_pred_mode[mb_xy][4]= h->intra4x4_pred_mode_cache[4+8*4];
761 h->intra4x4_pred_mode[mb_xy][5]= h->intra4x4_pred_mode_cache[5+8*4];
762 h->intra4x4_pred_mode[mb_xy][6]= h->intra4x4_pred_mode_cache[6+8*4];
763}
764
765/**
766 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
767 */
768static inline int check_intra4x4_pred_mode(H264Context *h){
769 MpegEncContext * const s = &h->s;
770 static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0};
771 static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED};
772 int i;
773
774 if(!(h->top_samples_available&0x8000)){
775 for(i=0; i<4; i++){
776 int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ];
777 if(status<0){
9b879566 778 av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
0da71265
MN
779 return -1;
780 } else if(status){
781 h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
782 }
783 }
784 }
785
786 if(!(h->left_samples_available&0x8000)){
787 for(i=0; i<4; i++){
788 int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ];
789 if(status<0){
9b879566 790 av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
0da71265
MN
791 return -1;
792 } else if(status){
793 h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status;
794 }
795 }
796 }
797
798 return 0;
799} //FIXME cleanup like next
800
801/**
802 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
803 */
804static inline int check_intra_pred_mode(H264Context *h, int mode){
805 MpegEncContext * const s = &h->s;
806 static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
807 static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
808
5175b937
LLL
809 if(mode < 0 || mode > 6) {
810 av_log(h->s.avctx, AV_LOG_ERROR, "out of range intra chroma pred mode at %d %d\n", s->mb_x, s->mb_y);
7440fe83 811 return -1;
5175b937 812 }
7440fe83 813
0da71265
MN
814 if(!(h->top_samples_available&0x8000)){
815 mode= top[ mode ];
816 if(mode<0){
9b879566 817 av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
0da71265
MN
818 return -1;
819 }
820 }
821
822 if(!(h->left_samples_available&0x8000)){
823 mode= left[ mode ];
824 if(mode<0){
9b879566 825 av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
0da71265
MN
826 return -1;
827 }
828 }
829
830 return mode;
831}
832
833/**
834 * gets the predicted intra4x4 prediction mode.
835 */
836static inline int pred_intra_mode(H264Context *h, int n){
837 const int index8= scan8[n];
838 const int left= h->intra4x4_pred_mode_cache[index8 - 1];
839 const int top = h->intra4x4_pred_mode_cache[index8 - 8];
840 const int min= FFMIN(left, top);
841
95c26348 842 tprintf("mode:%d %d min:%d\n", left ,top, min);
0da71265
MN
843
844 if(min<0) return DC_PRED;
845 else return min;
846}
847
848static inline void write_back_non_zero_count(H264Context *h){
849 MpegEncContext * const s = &h->s;
7bc9090a 850 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
0da71265 851
53c05b1e
MN
852 h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[4+8*4];
853 h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[5+8*4];
854 h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[6+8*4];
855 h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4];
856 h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[7+8*3];
857 h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[7+8*2];
858 h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[7+8*1];
859
860 h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[1+8*2];
861 h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2];
862 h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[2+8*1];
863
864 h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[1+8*5];
865 h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5];
866 h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[2+8*4];
0da71265
MN
867}
868
869/**
870 * gets the predicted number of non zero coefficients.
871 * @param n block index
872 */
873static inline int pred_non_zero_count(H264Context *h, int n){
874 const int index8= scan8[n];
875 const int left= h->non_zero_count_cache[index8 - 1];
876 const int top = h->non_zero_count_cache[index8 - 8];
877 int i= left + top;
878
879 if(i<64) i= (i+1)>>1;
880
95c26348 881 tprintf("pred_nnz L%X T%X n%d s%d P%X\n", left, top, n, scan8[n], i&31);
0da71265
MN
882
883 return i&31;
884}
885
1924f3ce
MN
886static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, int list, int part_width){
887 const int topright_ref= h->ref_cache[list][ i - 8 + part_width ];
888
889 if(topright_ref != PART_NOT_AVAILABLE){
890 *C= h->mv_cache[list][ i - 8 + part_width ];
891 return topright_ref;
892 }else{
95c26348
MN
893 tprintf("topright MV not available\n");
894
1924f3ce
MN
895 *C= h->mv_cache[list][ i - 8 - 1 ];
896 return h->ref_cache[list][ i - 8 - 1 ];
897 }
898}
899
0da71265
MN
900/**
901 * gets the predicted MV.
902 * @param n the block index
903 * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4)
904 * @param mx the x component of the predicted motion vector
905 * @param my the y component of the predicted motion vector
906 */
907static inline void pred_motion(H264Context * const h, int n, int part_width, int list, int ref, int * const mx, int * const my){
0da71265
MN
908 const int index8= scan8[n];
909 const int top_ref= h->ref_cache[list][ index8 - 8 ];
0da71265
MN
910 const int left_ref= h->ref_cache[list][ index8 - 1 ];
911 const int16_t * const A= h->mv_cache[list][ index8 - 1 ];
912 const int16_t * const B= h->mv_cache[list][ index8 - 8 ];
1924f3ce
MN
913 const int16_t * C;
914 int diagonal_ref, match_count;
915
0da71265 916 assert(part_width==1 || part_width==2 || part_width==4);
1924f3ce 917
0da71265
MN
918/* mv_cache
919 B . . A T T T T
920 U . . L . . , .
921 U . . L . . . .
922 U . . L . . , .
923 . . . L . . . .
924*/
1924f3ce
MN
925
926 diagonal_ref= fetch_diagonal_mv(h, &C, index8, list, part_width);
927 match_count= (diagonal_ref==ref) + (top_ref==ref) + (left_ref==ref);
827c91bf 928 tprintf("pred_motion match_count=%d\n", match_count);
1924f3ce
MN
929 if(match_count > 1){ //most common
930 *mx= mid_pred(A[0], B[0], C[0]);
931 *my= mid_pred(A[1], B[1], C[1]);
932 }else if(match_count==1){
933 if(left_ref==ref){
934 *mx= A[0];
935 *my= A[1];
936 }else if(top_ref==ref){
937 *mx= B[0];
938 *my= B[1];
0da71265 939 }else{
1924f3ce
MN
940 *mx= C[0];
941 *my= C[1];
0da71265
MN
942 }
943 }else{
1924f3ce 944 if(top_ref == PART_NOT_AVAILABLE && diagonal_ref == PART_NOT_AVAILABLE && left_ref != PART_NOT_AVAILABLE){
0da71265 945 *mx= A[0];
1924f3ce 946 *my= A[1];
0da71265 947 }else{
1924f3ce
MN
948 *mx= mid_pred(A[0], B[0], C[0]);
949 *my= mid_pred(A[1], B[1], C[1]);
0da71265 950 }
0da71265 951 }
1924f3ce 952
af6e2fed 953 tprintf("pred_motion (%2d %2d %2d) (%2d %2d %2d) (%2d %2d %2d) -> (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1], diagonal_ref, C[0], C[1], left_ref, A[0], A[1], ref, *mx, *my, h->s.mb_x, h->s.mb_y, n, list);
0da71265
MN
954}
955
956/**
957 * gets the directionally predicted 16x8 MV.
958 * @param n the block index
959 * @param mx the x component of the predicted motion vector
960 * @param my the y component of the predicted motion vector
961 */
962static inline void pred_16x8_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
0da71265
MN
963 if(n==0){
964 const int top_ref= h->ref_cache[list][ scan8[0] - 8 ];
965 const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ];
966
579448a0 967 tprintf("pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1], h->s.mb_x, h->s.mb_y, n, list);
0da71265
MN
968
969 if(top_ref == ref){
970 *mx= B[0];
971 *my= B[1];
972 return;
973 }
974 }else{
975 const int left_ref= h->ref_cache[list][ scan8[8] - 1 ];
976 const int16_t * const A= h->mv_cache[list][ scan8[8] - 1 ];
977
579448a0 978 tprintf("pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list);
0da71265
MN
979
980 if(left_ref == ref){
981 *mx= A[0];
982 *my= A[1];
983 return;
984 }
985 }
986
987 //RARE
988 pred_motion(h, n, 4, list, ref, mx, my);
989}
990
991/**
992 * gets the directionally predicted 8x16 MV.
993 * @param n the block index
994 * @param mx the x component of the predicted motion vector
995 * @param my the y component of the predicted motion vector
996 */
997static inline void pred_8x16_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
0da71265
MN
998 if(n==0){
999 const int left_ref= h->ref_cache[list][ scan8[0] - 1 ];
1000 const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ];
1001
579448a0 1002 tprintf("pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list);
0da71265
MN
1003
1004 if(left_ref == ref){
1005 *mx= A[0];
1006 *my= A[1];
1007 return;
1008 }
1009 }else{
1924f3ce
MN
1010 const int16_t * C;
1011 int diagonal_ref;
1012
1013 diagonal_ref= fetch_diagonal_mv(h, &C, scan8[4], list, 2);
0da71265 1014
579448a0 1015 tprintf("pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", diagonal_ref, C[0], C[1], h->s.mb_x, h->s.mb_y, n, list);
0da71265 1016
1924f3ce 1017 if(diagonal_ref == ref){
0da71265
MN
1018 *mx= C[0];
1019 *my= C[1];
1020 return;
1021 }
0da71265
MN
1022 }
1023
1024 //RARE
1025 pred_motion(h, n, 2, list, ref, mx, my);
1026}
1027
1028static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my){
0da71265
MN
1029 const int top_ref = h->ref_cache[0][ scan8[0] - 8 ];
1030 const int left_ref= h->ref_cache[0][ scan8[0] - 1 ];
1031
5175b937 1032 tprintf("pred_pskip: (%d) (%d) at %2d %2d\n", top_ref, left_ref, h->s.mb_x, h->s.mb_y);
0da71265
MN
1033
1034 if(top_ref == PART_NOT_AVAILABLE || left_ref == PART_NOT_AVAILABLE
1035 || (top_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 8 ] == 0)
1036 || (left_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 1 ] == 0)){
1037
1038 *mx = *my = 0;
1039 return;
1040 }
1041
1042 pred_motion(h, 0, 4, 0, 0, mx, my);
1043
1044 return;
1045}
1046
5ad984c9
LM
1047static inline void direct_dist_scale_factor(H264Context * const h){
1048 const int poc = h->s.current_picture_ptr->poc;
1049 const int poc1 = h->ref_list[1][0].poc;
1050 int i;
1051 for(i=0; i<h->ref_count[0]; i++){
1052 int poc0 = h->ref_list[0][i].poc;
1053 int td = clip(poc1 - poc0, -128, 127);
1054 if(td == 0 /* FIXME || pic0 is a long-term ref */){
1055 h->dist_scale_factor[i] = 256;
1056 }else{
1057 int tb = clip(poc - poc0, -128, 127);
1058 int tx = (16384 + (ABS(td) >> 1)) / td;
1059 h->dist_scale_factor[i] = clip((tb*tx + 32) >> 6, -1024, 1023);
1060 }
1061 }
1062}
1063
1064static inline void pred_direct_motion(H264Context * const h, int *mb_type){
1065 MpegEncContext * const s = &h->s;
1066 const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
1067 const int b8_xy = 2*s->mb_x + 2*s->mb_y*h->b8_stride;
1068 const int b4_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
1069 const int mb_type_col = h->ref_list[1][0].mb_type[mb_xy];
1070 const int16_t (*l1mv0)[2] = (const int16_t (*)[2]) &h->ref_list[1][0].motion_val[0][b4_xy];
1071 const int8_t *l1ref0 = &h->ref_list[1][0].ref_index[0][b8_xy];
1072 const int is_b8x8 = IS_8X8(*mb_type);
1073 int sub_mb_type;
1074 int i8, i4;
1075
1076 if(IS_8X8(mb_type_col) && !h->sps.direct_8x8_inference_flag){
1077 /* FIXME save sub mb types from previous frames (or derive from MVs)
1078 * so we know exactly what block size to use */
1079 sub_mb_type = MB_TYPE_8x8|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_4x4 */
1080 *mb_type = MB_TYPE_8x8;
1081 }else if(!is_b8x8 && (IS_16X16(mb_type_col) || IS_INTRA(mb_type_col))){
1082 sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
1083 *mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_16x16 */
1084 }else{
1085 sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
1086 *mb_type = MB_TYPE_8x8;
1087 }
1088 if(!is_b8x8)
1089 *mb_type |= MB_TYPE_DIRECT2;
1090
827c91bf
LLL
1091 tprintf("mb_type = %08x, sub_mb_type = %08x, is_b8x8 = %d, mb_type_col = %08x\n", *mb_type, sub_mb_type, is_b8x8, mb_type_col);
1092
5ad984c9
LM
1093 if(h->direct_spatial_mv_pred){
1094 int ref[2];
1095 int mv[2][2];
1096 int list;
1097
1098 /* ref = min(neighbors) */
1099 for(list=0; list<2; list++){
1100 int refa = h->ref_cache[list][scan8[0] - 1];
1101 int refb = h->ref_cache[list][scan8[0] - 8];
1102 int refc = h->ref_cache[list][scan8[0] - 8 + 4];
1103 if(refc == -2)
1104 refc = h->ref_cache[list][scan8[0] - 8 - 1];
1105 ref[list] = refa;
1106 if(ref[list] < 0 || (refb < ref[list] && refb >= 0))
1107 ref[list] = refb;
1108 if(ref[list] < 0 || (refc < ref[list] && refc >= 0))
1109 ref[list] = refc;
1110 if(ref[list] < 0)
1111 ref[list] = -1;
1112 }
1113
1114 if(ref[0] < 0 && ref[1] < 0){
1115 ref[0] = ref[1] = 0;
1116 mv[0][0] = mv[0][1] =
1117 mv[1][0] = mv[1][1] = 0;
1118 }else{
1119 for(list=0; list<2; list++){
1120 if(ref[list] >= 0)
1121 pred_motion(h, 0, 4, list, ref[list], &mv[list][0], &mv[list][1]);
1122 else
1123 mv[list][0] = mv[list][1] = 0;
1124 }
1125 }
1126
1127 if(ref[1] < 0){
1128 *mb_type &= ~MB_TYPE_P0L1;
1129 sub_mb_type &= ~MB_TYPE_P0L1;
1130 }else if(ref[0] < 0){
1131 *mb_type &= ~MB_TYPE_P0L0;
1132 sub_mb_type &= ~MB_TYPE_P0L0;
1133 }
1134
1135 if(IS_16X16(*mb_type)){
1136 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref[0], 1);
1137 fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, ref[1], 1);
1138 if(!IS_INTRA(mb_type_col) && l1ref0[0] == 0 &&
1139 ABS(l1mv0[0][0]) <= 1 && ABS(l1mv0[0][1]) <= 1){
1140 if(ref[0] > 0)
1141 fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mv[0][0],mv[0][1]), 4);
1142 else
1143 fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4);
1144 if(ref[1] > 0)
1145 fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, pack16to32(mv[1][0],mv[1][1]), 4);
1146 else
1147 fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, 0, 4);
1148 }else{
1149 fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mv[0][0],mv[0][1]), 4);
1150 fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, pack16to32(mv[1][0],mv[1][1]), 4);
1151 }
1152 }else{
1153 for(i8=0; i8<4; i8++){
1154 const int x8 = i8&1;
1155 const int y8 = i8>>1;
1156
1157 if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
1158 continue;
1159 h->sub_mb_type[i8] = sub_mb_type;
1160
1161 fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mv[0][0],mv[0][1]), 4);
1162 fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mv[1][0],mv[1][1]), 4);
1163 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref[0], 1);
1164 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, ref[1], 1);
1165
1166 /* col_zero_flag */
1167 if(!IS_INTRA(mb_type_col) && l1ref0[x8 + y8*h->b8_stride] == 0){
1168 for(i4=0; i4<4; i4++){
1169 const int16_t *mv_col = l1mv0[x8*2 + (i4&1) + (y8*2 + (i4>>1))*h->b_stride];
1170 if(ABS(mv_col[0]) <= 1 && ABS(mv_col[1]) <= 1){
1171 if(ref[0] == 0)
1172 *(uint32_t*)h->mv_cache[0][scan8[i8*4+i4]] = 0;
1173 if(ref[1] == 0)
1174 *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] = 0;
1175 }
1176 }
1177 }
1178 }
1179 }
1180 }else{ /* direct temporal mv pred */
1181 /* FIXME assumes that L1ref0 used the same ref lists as current frame */
1182 if(IS_16X16(*mb_type)){
1183 fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1);
1184 if(IS_INTRA(mb_type_col)){
1185 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
1186 fill_rectangle(&h-> mv_cache[0][scan8[0]], 4, 4, 8, 0, 4);
1187 fill_rectangle(&h-> mv_cache[1][scan8[0]], 4, 4, 8, 0, 4);
1188 }else{
1189 const int ref0 = l1ref0[0];
1190 const int dist_scale_factor = h->dist_scale_factor[ref0];
1191 const int16_t *mv_col = l1mv0[0];
1192 int mv_l0[2];
1193 mv_l0[0] = (dist_scale_factor * mv_col[0] + 128) >> 8;
1194 mv_l0[1] = (dist_scale_factor * mv_col[1] + 128) >> 8;
1195 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref0, 1);
1196 fill_rectangle(&h-> mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mv_l0[0],mv_l0[1]), 4);
1197 fill_rectangle(&h-> mv_cache[1][scan8[0]], 4, 4, 8, pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]), 4);
1198 }
1199 }else{
1200 for(i8=0; i8<4; i8++){
1201 const int x8 = i8&1;
1202 const int y8 = i8>>1;
1203 int ref0, dist_scale_factor;
1204
1205 if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
1206 continue;
1207 h->sub_mb_type[i8] = sub_mb_type;
1208 if(IS_INTRA(mb_type_col)){
1209 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
1210 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
1211 fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
1212 fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
1213 continue;
1214 }
1215
1216 ref0 = l1ref0[x8 + y8*h->b8_stride];
1217 dist_scale_factor = h->dist_scale_factor[ref0];
1218
1219 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
1220 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
1221 for(i4=0; i4<4; i4++){
1222 const int16_t *mv_col = l1mv0[x8*2 + (i4&1) + (y8*2 + (i4>>1))*h->b_stride];
1223 int16_t *mv_l0 = h->mv_cache[0][scan8[i8*4+i4]];
1224 mv_l0[0] = (dist_scale_factor * mv_col[0] + 128) >> 8;
1225 mv_l0[1] = (dist_scale_factor * mv_col[1] + 128) >> 8;
1226 *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] =
1227 pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
1228 }
1229 }
1230 }
1231 }
1232}
1233
0da71265
MN
1234static inline void write_back_motion(H264Context *h, int mb_type){
1235 MpegEncContext * const s = &h->s;
0da71265
MN
1236 const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
1237 const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride;
1238 int list;
1239
1240 for(list=0; list<2; list++){
1241 int y;
1242 if((!IS_8X8(mb_type)) && !USES_LIST(mb_type, list)){
1243 if(1){ //FIXME skip or never read if mb_type doesnt use it
1244 for(y=0; y<4; y++){
1245 *(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]=
1246 *(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= 0;
1247 }
9e528114
LA
1248 if( h->pps.cabac ) {
1249 /* FIXME needed ? */
1250 for(y=0; y<4; y++){
1251 *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]=
1252 *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= 0;
1253 }
1254 }
0da71265 1255 for(y=0; y<2; y++){
7d7f635d 1256 *(uint16_t*)&s->current_picture.ref_index[list][b8_xy + y*h->b8_stride]= (LIST_NOT_USED&0xFF)*0x0101;
0da71265
MN
1257 }
1258 }
5ad984c9 1259 continue;
0da71265
MN
1260 }
1261
1262 for(y=0; y<4; y++){
1263 *(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+0 + 8*y];
1264 *(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+2 + 8*y];
1265 }
9e528114
LA
1266 if( h->pps.cabac ) {
1267 for(y=0; y<4; y++){
1268 *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+0 + 8*y];
1269 *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+2 + 8*y];
1270 }
1271 }
0da71265
MN
1272 for(y=0; y<2; y++){
1273 s->current_picture.ref_index[list][b8_xy + 0 + y*h->b8_stride]= h->ref_cache[list][scan8[0]+0 + 16*y];
1274 s->current_picture.ref_index[list][b8_xy + 1 + y*h->b8_stride]= h->ref_cache[list][scan8[0]+2 + 16*y];
1275 }
1276 }
5ad984c9
LM
1277
1278 if(h->slice_type == B_TYPE && h->pps.cabac){
1279 if(IS_8X8(mb_type)){
1280 h->direct_table[b8_xy+1+0*h->b8_stride] = IS_DIRECT(h->sub_mb_type[1]) ? 1 : 0;
1281 h->direct_table[b8_xy+0+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[2]) ? 1 : 0;
1282 h->direct_table[b8_xy+1+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[3]) ? 1 : 0;
1283 }
1284 }
0da71265
MN
1285}
1286
1287/**
1288 * Decodes a network abstraction layer unit.
1289 * @param consumed is the number of bytes used as input
1290 * @param length is the length of the array
1291 * @param dst_length is the number of decoded bytes FIXME here or a decode rbsp ttailing?
1292 * @returns decoded bytes, might be src+1 if no escapes
1293 */
1294static uint8_t *decode_nal(H264Context *h, uint8_t *src, int *dst_length, int *consumed, int length){
1295 int i, si, di;
1296 uint8_t *dst;
1297
1298// src[0]&0x80; //forbidden bit
1299 h->nal_ref_idc= src[0]>>5;
1300 h->nal_unit_type= src[0]&0x1F;
1301
1302 src++; length--;
1303#if 0
1304 for(i=0; i<length; i++)
1305 printf("%2X ", src[i]);
1306#endif
1307 for(i=0; i+1<length; i+=2){
1308 if(src[i]) continue;
1309 if(i>0 && src[i-1]==0) i--;
1310 if(i+2<length && src[i+1]==0 && src[i+2]<=3){
1311 if(src[i+2]!=3){
1312 /* startcode, so we must be past the end */
1313 length=i;
1314 }
1315 break;
1316 }
1317 }
1318
1319 if(i>=length-1){ //no escaped 0
1320 *dst_length= length;
1321 *consumed= length+1; //+1 for the header
1322 return src;
1323 }
1324
1325 h->rbsp_buffer= av_fast_realloc(h->rbsp_buffer, &h->rbsp_buffer_size, length);
1326 dst= h->rbsp_buffer;
1327
1328//printf("deoding esc\n");
1329 si=di=0;
1330 while(si<length){
1331 //remove escapes (very rare 1:2^22)
1332 if(si+2<length && src[si]==0 && src[si+1]==0 && src[si+2]<=3){
1333 if(src[si+2]==3){ //escape
1334 dst[di++]= 0;
1335 dst[di++]= 0;
1336 si+=3;
c8470cc1 1337 continue;
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1338 }else //next start code
1339 break;
1340 }
1341
1342 dst[di++]= src[si++];
1343 }
1344
1345 *dst_length= di;
1346 *consumed= si + 1;//+1 for the header
1347//FIXME store exact number of bits in the getbitcontext (its needed for decoding)
1348 return dst;
1349}
1350
e5017ab8 1351#if 0
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1352/**
1353 * @param src the data which should be escaped
1354 * @param dst the target buffer, dst+1 == src is allowed as a special case
1355 * @param length the length of the src data
1356 * @param dst_length the length of the dst array
1357 * @returns length of escaped data in bytes or -1 if an error occured
1358 */
1359static int encode_nal(H264Context *h, uint8_t *dst, uint8_t *src, int length, int dst_length){
1360 int i, escape_count, si, di;
1361 uint8_t *temp;
1362
1363 assert(length>=0);
1364 assert(dst_length>0);
1365
1366 dst[0]= (h->nal_ref_idc<<5) + h->nal_unit_type;
1367
1368 if(length==0) return 1;
1369
1370 escape_count= 0;
1371 for(i=0; i<length; i+=2){
1372 if(src[i]) continue;
1373 if(i>0 && src[i-1]==0)
1374 i--;
1375 if(i+2<length && src[i+1]==0 && src[i+2]<=3){
1376 escape_count++;
1377 i+=2;
1378 }
1379 }
1380
1381 if(escape_count==0){
1382 if(dst+1 != src)
1383 memcpy(dst+1, src, length);
1384 return length + 1;
1385 }
1386
1387 if(length + escape_count + 1> dst_length)
1388 return -1;
1389
1390 //this should be damn rare (hopefully)
1391
1392 h->rbsp_buffer= av_fast_realloc(h->rbsp_buffer, &h->rbsp_buffer_size, length + escape_count);
1393 temp= h->rbsp_buffer;
1394//printf("encoding esc\n");
1395
1396 si= 0;
1397 di= 0;
1398 while(si < length){
1399 if(si+2<length && src[si]==0 && src[si+1]==0 && src[si+2]<=3){
1400 temp[di++]= 0; si++;
1401 temp[di++]= 0; si++;
1402 temp[di++]= 3;
1403 temp[di++]= src[si++];
1404 }
1405 else
1406 temp[di++]= src[si++];
1407 }
1408 memcpy(dst+1, temp, length+escape_count);
1409
1410 assert(di == length+escape_count);
1411
1412 return di + 1;
1413}
1414
1415/**
1416 * write 1,10,100,1000,... for alignment, yes its exactly inverse to mpeg4
1417 */
1418static void encode_rbsp_trailing(PutBitContext *pb){
1419 int length;
1420 put_bits(pb, 1, 1);
fe455f33 1421 length= (-put_bits_count(pb))&7;
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1422 if(length) put_bits(pb, length, 0);
1423}
e5017ab8 1424#endif
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1425
1426/**
1427 * identifies the exact end of the bitstream
1428 * @return the length of the trailing, or 0 if damaged
1429 */
1430static int decode_rbsp_trailing(uint8_t *src){
1431 int v= *src;
1432 int r;
1433
95c26348 1434 tprintf("rbsp trailing %X\n", v);
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1435
1436 for(r=1; r<9; r++){
1437 if(v&1) return r;
1438 v>>=1;
1439 }
1440 return 0;
1441}
1442
1443/**
1444 * idct tranforms the 16 dc values and dequantize them.
1445 * @param qp quantization parameter
1446 */
1447static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp){
1448 const int qmul= dequant_coeff[qp][0];
1449#define stride 16
1450 int i;
1451 int temp[16]; //FIXME check if this is a good idea
1452 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
1453 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
1454
1455//memset(block, 64, 2*256);
1456//return;
1457 for(i=0; i<4; i++){
1458 const int offset= y_offset[i];
1459 const int z0= block[offset+stride*0] + block[offset+stride*4];
1460 const int z1= block[offset+stride*0] - block[offset+stride*4];
1461 const int z2= block[offset+stride*1] - block[offset+stride*5];
1462 const int z3= block[offset+stride*1] + block[offset+stride*5];
1463
1464 temp[4*i+0]= z0+z3;
1465 temp[4*i+1]= z1+z2;
1466 temp[4*i+2]= z1-z2;
1467 temp[4*i+3]= z0-z3;
1468 }
1469
1470 for(i=0; i<4; i++){
1471 const int offset= x_offset[i];
1472 const int z0= temp[4*0+i] + temp[4*2+i];
1473 const int z1= temp[4*0+i] - temp[4*2+i];
1474 const int z2= temp[4*1+i] - temp[4*3+i];
1475 const int z3= temp[4*1+i] + temp[4*3+i];
1476
1477 block[stride*0 +offset]= ((z0 + z3)*qmul + 2)>>2; //FIXME think about merging this into decode_resdual
1478 block[stride*2 +offset]= ((z1 + z2)*qmul + 2)>>2;
1479 block[stride*8 +offset]= ((z1 - z2)*qmul + 2)>>2;
1480 block[stride*10+offset]= ((z0 - z3)*qmul + 2)>>2;
1481 }
1482}
1483
e5017ab8 1484#if 0
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1485/**
1486 * dct tranforms the 16 dc values.
1487 * @param qp quantization parameter ??? FIXME
1488 */
1489static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
1490// const int qmul= dequant_coeff[qp][0];
1491 int i;
1492 int temp[16]; //FIXME check if this is a good idea
1493 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
1494 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
1495
1496 for(i=0; i<4; i++){
1497 const int offset= y_offset[i];
1498 const int z0= block[offset+stride*0] + block[offset+stride*4];
1499 const int z1= block[offset+stride*0] - block[offset+stride*4];
1500 const int z2= block[offset+stride*1] - block[offset+stride*5];
1501 const int z3= block[offset+stride*1] + block[offset+stride*5];
1502
1503 temp[4*i+0]= z0+z3;
1504 temp[4*i+1]= z1+z2;
1505 temp[4*i+2]= z1-z2;
1506 temp[4*i+3]= z0-z3;
1507 }
1508
1509 for(i=0; i<4; i++){
1510 const int offset= x_offset[i];
1511 const int z0= temp[4*0+i] + temp[4*2+i];
1512 const int z1= temp[4*0+i] - temp[4*2+i];
1513 const int z2= temp[4*1+i] - temp[4*3+i];
1514 const int z3= temp[4*1+i] + temp[4*3+i];
1515
1516 block[stride*0 +offset]= (z0 + z3)>>1;
1517 block[stride*2 +offset]= (z1 + z2)>>1;
1518 block[stride*8 +offset]= (z1 - z2)>>1;
1519 block[stride*10+offset]= (z0 - z3)>>1;
1520 }
1521}
e5017ab8
LA
1522#endif
1523
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1524#undef xStride
1525#undef stride
1526
1527static void chroma_dc_dequant_idct_c(DCTELEM *block, int qp){
1528 const int qmul= dequant_coeff[qp][0];
1529 const int stride= 16*2;
1530 const int xStride= 16;
1531 int a,b,c,d,e;
1532
1533 a= block[stride*0 + xStride*0];
1534 b= block[stride*0 + xStride*1];
1535 c= block[stride*1 + xStride*0];
1536 d= block[stride*1 + xStride*1];
1537
1538 e= a-b;
1539 a= a+b;
1540 b= c-d;
1541 c= c+d;
1542
1543 block[stride*0 + xStride*0]= ((a+c)*qmul + 0)>>1;
1544 block[stride*0 + xStride*1]= ((e+b)*qmul + 0)>>1;
1545 block[stride*1 + xStride*0]= ((a-c)*qmul + 0)>>1;
1546 block[stride*1 + xStride*1]= ((e-b)*qmul + 0)>>1;
1547}
1548
e5017ab8 1549#if 0
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1550static void chroma_dc_dct_c(DCTELEM *block){
1551 const int stride= 16*2;
1552 const int xStride= 16;
1553 int a,b,c,d,e;
1554
1555 a= block[stride*0 + xStride*0];
1556 b= block[stride*0 + xStride*1];
1557 c= block[stride*1 + xStride*0];
1558 d= block[stride*1 + xStride*1];
1559
1560 e= a-b;
1561 a= a+b;
1562 b= c-d;
1563 c= c+d;
1564
1565 block[stride*0 + xStride*0]= (a+c);
1566 block[stride*0 + xStride*1]= (e+b);
1567 block[stride*1 + xStride*0]= (a-c);
1568 block[stride*1 + xStride*1]= (e-b);
1569}
e5017ab8 1570#endif
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1571
1572/**
1573 * gets the chroma qp.
1574 */
1575static inline int get_chroma_qp(H264Context *h, int qscale){
1576
1577 return chroma_qp[clip(qscale + h->pps.chroma_qp_index_offset, 0, 51)];
1578}
1579
1580
e5017ab8 1581#if 0
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1582static void h264_diff_dct_c(DCTELEM *block, uint8_t *src1, uint8_t *src2, int stride){
1583 int i;
1584 //FIXME try int temp instead of block
1585
1586 for(i=0; i<4; i++){
1587 const int d0= src1[0 + i*stride] - src2[0 + i*stride];
1588 const int d1= src1[1 + i*stride] - src2[1 + i*stride];
1589 const int d2= src1[2 + i*stride] - src2[2 + i*stride];
1590 const int d3= src1[3 + i*stride] - src2[3 + i*stride];
1591 const int z0= d0 + d3;
1592 const int z3= d0 - d3;
1593 const int z1= d1 + d2;
1594 const int z2= d1 - d2;
1595
1596 block[0 + 4*i]= z0 + z1;
1597 block[1 + 4*i]= 2*z3 + z2;
1598 block[2 + 4*i]= z0 - z1;
1599 block[3 + 4*i]= z3 - 2*z2;
1600 }
1601
1602 for(i=0; i<4; i++){
1603 const int z0= block[0*4 + i] + block[3*4 + i];
1604 const int z3= block[0*4 + i] - block[3*4 + i];
1605 const int z1= block[1*4 + i] + block[2*4 + i];
1606 const int z2= block[1*4 + i] - block[2*4 + i];
1607
1608 block[0*4 + i]= z0 + z1;
1609 block[1*4 + i]= 2*z3 + z2;
1610 block[2*4 + i]= z0 - z1;
1611 block[3*4 + i]= z3 - 2*z2;
1612 }
1613}
e5017ab8 1614#endif
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MN
1615
1616//FIXME need to check that this doesnt overflow signed 32 bit for low qp, iam not sure, its very close
1617//FIXME check that gcc inlines this (and optimizes intra & seperate_dc stuff away)
1618static inline int quantize_c(DCTELEM *block, uint8_t *scantable, int qscale, int intra, int seperate_dc){
1619 int i;
1620 const int * const quant_table= quant_coeff[qscale];
1621 const int bias= intra ? (1<<QUANT_SHIFT)/3 : (1<<QUANT_SHIFT)/6;
1622 const unsigned int threshold1= (1<<QUANT_SHIFT) - bias - 1;
1623 const unsigned int threshold2= (threshold1<<1);
1624 int last_non_zero;
1625
1626 if(seperate_dc){
1627 if(qscale<=18){
1628 //avoid overflows
1629 const int dc_bias= intra ? (1<<(QUANT_SHIFT-2))/3 : (1<<(QUANT_SHIFT-2))/6;
1630 const unsigned int dc_threshold1= (1<<(QUANT_SHIFT-2)) - dc_bias - 1;
1631 const unsigned int dc_threshold2= (dc_threshold1<<1);
1632
1633 int level= block[0]*quant_coeff[qscale+18][0];
1634 if(((unsigned)(level+dc_threshold1))>dc_threshold2){
1635 if(level>0){
1636 level= (dc_bias + level)>>(QUANT_SHIFT-2);
1637 block[0]= level;
1638 }else{
1639 level= (dc_bias - level)>>(QUANT_SHIFT-2);
1640 block[0]= -level;
1641 }
1642// last_non_zero = i;
1643 }else{
1644 block[0]=0;
1645 }
1646 }else{
1647 const int dc_bias= intra ? (1<<(QUANT_SHIFT+1))/3 : (1<<(QUANT_SHIFT+1))/6;
1648 const unsigned int dc_threshold1= (1<<(QUANT_SHIFT+1)) - dc_bias - 1;
1649 const unsigned int dc_threshold2= (dc_threshold1<<1);
1650
1651 int level= block[0]*quant_table[0];
1652 if(((unsigned)(level+dc_threshold1))>dc_threshold2){
1653 if(level>0){
1654 level= (dc_bias + level)>>(QUANT_SHIFT+1);
1655 block[0]= level;
1656 }else{
1657 level= (dc_bias - level)>>(QUANT_SHIFT+1);
1658 block[0]= -level;
1659 }
1660// last_non_zero = i;
1661 }else{
1662 block[0]=0;
1663 }
1664 }
1665 last_non_zero= 0;
1666 i=1;
1667 }else{
1668 last_non_zero= -1;
1669 i=0;
1670 }
1671
1672 for(; i<16; i++){
1673 const int j= scantable[i];
1674 int level= block[j]*quant_table[j];
1675
1676// if( bias+level >= (1<<(QMAT_SHIFT - 3))
1677// || bias-level >= (1<<(QMAT_SHIFT - 3))){
1678 if(((unsigned)(level+threshold1))>threshold2){
1679 if(level>0){
1680 level= (bias + level)>>QUANT_SHIFT;
1681 block[j]= level;
1682 }else{
1683 level= (bias - level)>>QUANT_SHIFT;
1684 block[j]= -level;
1685 }
1686 last_non_zero = i;
1687 }else{
1688 block[j]=0;
1689 }
1690 }
1691
1692 return last_non_zero;
1693}
1694
1695static void pred4x4_vertical_c(uint8_t *src, uint8_t *topright, int stride){
1696 const uint32_t a= ((uint32_t*)(src-stride))[0];
1697 ((uint32_t*)(src+0*stride))[0]= a;
1698 ((uint32_t*)(src+1*stride))[0]= a;
1699 ((uint32_t*)(src+2*stride))[0]= a;
1700 ((uint32_t*)(src+3*stride))[0]= a;
1701}
1702
1703static void pred4x4_horizontal_c(uint8_t *src, uint8_t *topright, int stride){
1704 ((uint32_t*)(src+0*stride))[0]= src[-1+0*stride]*0x01010101;
1705 ((uint32_t*)(src+1*stride))[0]= src[-1+1*stride]*0x01010101;
1706 ((uint32_t*)(src+2*stride))[0]= src[-1+2*stride]*0x01010101;
1707 ((uint32_t*)(src+3*stride))[0]= src[-1+3*stride]*0x01010101;
1708}
1709
1710static void pred4x4_dc_c(uint8_t *src, uint8_t *topright, int stride){
1711 const int dc= ( src[-stride] + src[1-stride] + src[2-stride] + src[3-stride]
1712 + src[-1+0*stride] + src[-1+1*stride] + src[-1+2*stride] + src[-1+3*stride] + 4) >>3;
1713
1714 ((uint32_t*)(src+0*stride))[0]=
1715 ((uint32_t*)(src+1*stride))[0]=
1716 ((uint32_t*)(src+2*stride))[0]=
1717 ((uint32_t*)(src+3*stride))[0]= dc* 0x01010101;
1718}
1719
1720static void pred4x4_left_dc_c(uint8_t *src, uint8_t *topright, int stride){
1721 const int dc= ( src[-1+0*stride] + src[-1+1*stride] + src[-1+2*stride] + src[-1+3*stride] + 2) >>2;
1722
1723 ((uint32_t*)(src+0*stride))[0]=
1724 ((uint32_t*)(src+1*stride))[0]=
1725 ((uint32_t*)(src+2*stride))[0]=
1726 ((uint32_t*)(src+3*stride))[0]= dc* 0x01010101;
1727}
1728
1729static void pred4x4_top_dc_c(uint8_t *src, uint8_t *topright, int stride){
1730 const int dc= ( src[-stride] + src[1-stride] + src[2-stride] + src[3-stride] + 2) >>2;
1731
1732 ((uint32_t*)(src+0*stride))[0]=
1733 ((uint32_t*)(src+1*stride))[0]=
1734 ((uint32_t*)(src+2*stride))[0]=
1735 ((uint32_t*)(src+3*stride))[0]= dc* 0x01010101;
1736}
1737
1738static void pred4x4_128_dc_c(uint8_t *src, uint8_t *topright, int stride){
1739 ((uint32_t*)(src+0*stride))[0]=
1740 ((uint32_t*)(src+1*stride))[0]=
1741 ((uint32_t*)(src+2*stride))[0]=
1742 ((uint32_t*)(src+3*stride))[0]= 128U*0x01010101U;
1743}
1744
1745
1746#define LOAD_TOP_RIGHT_EDGE\
1747 const int t4= topright[0];\
1748 const int t5= topright[1];\
1749 const int t6= topright[2];\
1750 const int t7= topright[3];\
1751
1752#define LOAD_LEFT_EDGE\
1753 const int l0= src[-1+0*stride];\
1754 const int l1= src[-1+1*stride];\
1755 const int l2= src[-1+2*stride];\
1756 const int l3= src[-1+3*stride];\
1757
1758#define LOAD_TOP_EDGE\
1759 const int t0= src[ 0-1*stride];\
1760 const int t1= src[ 1-1*stride];\
1761 const int t2= src[ 2-1*stride];\
1762 const int t3= src[ 3-1*stride];\
1763
1764static void pred4x4_down_right_c(uint8_t *src, uint8_t *topright, int stride){
1765 const int lt= src[-1-1*stride];
1766 LOAD_TOP_EDGE
1767 LOAD_LEFT_EDGE
1768
1769 src[0+3*stride]=(l3 + 2*l2 + l1 + 2)>>2;
1770 src[0+2*stride]=
1771 src[1+3*stride]=(l2 + 2*l1 + l0 + 2)>>2;
1772 src[0+1*stride]=
1773 src[1+2*stride]=
1774 src[2+3*stride]=(l1 + 2*l0 + lt + 2)>>2;
1775 src[0+0*stride]=
1776 src[1+1*stride]=
1777 src[2+2*stride]=
1778 src[3+3*stride]=(l0 + 2*lt + t0 + 2)>>2;
1779 src[1+0*stride]=
1780 src[2+1*stride]=
1781 src[3+2*stride]=(lt + 2*t0 + t1 + 2)>>2;
1782 src[2+0*stride]=
1783 src[3+1*stride]=(t0 + 2*t1 + t2 + 2)>>2;
1784 src[3+0*stride]=(t1 + 2*t2 + t3 + 2)>>2;
4cfbf61b 1785}
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1786
1787static void pred4x4_down_left_c(uint8_t *src, uint8_t *topright, int stride){
1788 LOAD_TOP_EDGE
1789 LOAD_TOP_RIGHT_EDGE
1790// LOAD_LEFT_EDGE
1791
1792 src[0+0*stride]=(t0 + t2 + 2*t1 + 2)>>2;
1793 src[1+0*stride]=
1794 src[0+1*stride]=(t1 + t3 + 2*t2 + 2)>>2;
1795 src[2+0*stride]=
1796 src[1+1*stride]=
1797 src[0+2*stride]=(t2 + t4 + 2*t3 + 2)>>2;
1798 src[3+0*stride]=
1799 src[2+1*stride]=
1800 src[1+2*stride]=
1801 src[0+3*stride]=(t3 + t5 + 2*t4 + 2)>>2;
1802 src[3+1*stride]=
1803 src[2+2*stride]=
1804 src[1+3*stride]=(t4 + t6 + 2*t5 + 2)>>2;
1805 src[3+2*stride]=
1806 src[2+3*stride]=(t5 + t7 + 2*t6 + 2)>>2;
1807 src[3+3*stride]=(t6 + 3*t7 + 2)>>2;
4cfbf61b 1808}
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MN
1809
1810static void pred4x4_vertical_right_c(uint8_t *src, uint8_t *topright, int stride){
1811 const int lt= src[-1-1*stride];
1812 LOAD_TOP_EDGE
1813 LOAD_LEFT_EDGE
1814 const __attribute__((unused)) int unu= l3;
1815
1816 src[0+0*stride]=
1817 src[1+2*stride]=(lt + t0 + 1)>>1;
1818 src[1+0*stride]=
1819 src[2+2*stride]=(t0 + t1 + 1)>>1;
1820 src[2+0*stride]=
1821 src[3+2*stride]=(t1 + t2 + 1)>>1;
1822 src[3+0*stride]=(t2 + t3 + 1)>>1;
1823 src[0+1*stride]=
1824 src[1+3*stride]=(l0 + 2*lt + t0 + 2)>>2;
1825 src[1+1*stride]=
1826 src[2+3*stride]=(lt + 2*t0 + t1 + 2)>>2;
1827 src[2+1*stride]=
1828 src[3+3*stride]=(t0 + 2*t1 + t2 + 2)>>2;
1829 src[3+1*stride]=(t1 + 2*t2 + t3 + 2)>>2;
1830 src[0+2*stride]=(lt + 2*l0 + l1 + 2)>>2;
1831 src[0+3*stride]=(l0 + 2*l1 + l2 + 2)>>2;
4cfbf61b 1832}
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MN
1833
1834static void pred4x4_vertical_left_c(uint8_t *src, uint8_t *topright, int stride){
1835 LOAD_TOP_EDGE
1836 LOAD_TOP_RIGHT_EDGE
1837 const __attribute__((unused)) int unu= t7;
1838
1839 src[0+0*stride]=(t0 + t1 + 1)>>1;
1840 src[1+0*stride]=
1841 src[0+2*stride]=(t1 + t2 + 1)>>1;
1842 src[2+0*stride]=
1843 src[1+2*stride]=(t2 + t3 + 1)>>1;
1844 src[3+0*stride]=
1845 src[2+2*stride]=(t3 + t4+ 1)>>1;
1846 src[3+2*stride]=(t4 + t5+ 1)>>1;
1847 src[0+1*stride]=(t0 + 2*t1 + t2 + 2)>>2;
1848 src[1+1*stride]=
1849 src[0+3*stride]=(t1 + 2*t2 + t3 + 2)>>2;
1850 src[2+1*stride]=
1851 src[1+3*stride]=(t2 + 2*t3 + t4 + 2)>>2;
1852 src[3+1*stride]=
1853 src[2+3*stride]=(t3 + 2*t4 + t5 + 2)>>2;
1854 src[3+3*stride]=(t4 + 2*t5 + t6 + 2)>>2;
4cfbf61b 1855}
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MN
1856
1857static void pred4x4_horizontal_up_c(uint8_t *src, uint8_t *topright, int stride){
1858 LOAD_LEFT_EDGE
1859
1860 src[0+0*stride]=(l0 + l1 + 1)>>1;
1861 src[1+0*stride]=(l0 + 2*l1 + l2 + 2)>>2;
1862 src[2+0*stride]=
1863 src[0+1*stride]=(l1 + l2 + 1)>>1;
1864 src[3+0*stride]=
1865 src[1+1*stride]=(l1 + 2*l2 + l3 + 2)>>2;
1866 src[2+1*stride]=
1867 src[0+2*stride]=(l2 + l3 + 1)>>1;
1868 src[3+1*stride]=
1869 src[1+2*stride]=(l2 + 2*l3 + l3 + 2)>>2;
1870 src[3+2*stride]=
1871 src[1+3*stride]=
1872 src[0+3*stride]=
1873 src[2+2*stride]=
1874 src[2+3*stride]=
1875 src[3+3*stride]=l3;
4cfbf61b 1876}
0da71265
MN
1877
1878static void pred4x4_horizontal_down_c(uint8_t *src, uint8_t *topright, int stride){
1879 const int lt= src[-1-1*stride];
1880 LOAD_TOP_EDGE
1881 LOAD_LEFT_EDGE
1882 const __attribute__((unused)) int unu= t3;
1883
1884 src[0+0*stride]=
1885 src[2+1*stride]=(lt + l0 + 1)>>1;
1886 src[1+0*stride]=
1887 src[3+1*stride]=(l0 + 2*lt + t0 + 2)>>2;
1888 src[2+0*stride]=(lt + 2*t0 + t1 + 2)>>2;
1889 src[3+0*stride]=(t0 + 2*t1 + t2 + 2)>>2;
1890 src[0+1*stride]=
1891 src[2+2*stride]=(l0 + l1 + 1)>>1;
1892 src[1+1*stride]=
1893 src[3+2*stride]=(lt + 2*l0 + l1 + 2)>>2;
1894 src[0+2*stride]=
1895 src[2+3*stride]=(l1 + l2+ 1)>>1;
1896 src[1+2*stride]=
1897 src[3+3*stride]=(l0 + 2*l1 + l2 + 2)>>2;
1898 src[0+3*stride]=(l2 + l3 + 1)>>1;
1899 src[1+3*stride]=(l1 + 2*l2 + l3 + 2)>>2;
4cfbf61b 1900}
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MN
1901
1902static void pred16x16_vertical_c(uint8_t *src, int stride){
1903 int i;
1904 const uint32_t a= ((uint32_t*)(src-stride))[0];
1905 const uint32_t b= ((uint32_t*)(src-stride))[1];
1906 const uint32_t c= ((uint32_t*)(src-stride))[2];
1907 const uint32_t d= ((uint32_t*)(src-stride))[3];
1908
1909 for(i=0; i<16; i++){
1910 ((uint32_t*)(src+i*stride))[0]= a;
1911 ((uint32_t*)(src+i*stride))[1]= b;
1912 ((uint32_t*)(src+i*stride))[2]= c;
1913 ((uint32_t*)(src+i*stride))[3]= d;
1914 }
1915}
1916
1917static void pred16x16_horizontal_c(uint8_t *src, int stride){
1918 int i;
1919
1920 for(i=0; i<16; i++){
1921 ((uint32_t*)(src+i*stride))[0]=
1922 ((uint32_t*)(src+i*stride))[1]=
1923 ((uint32_t*)(src+i*stride))[2]=
1924 ((uint32_t*)(src+i*stride))[3]= src[-1+i*stride]*0x01010101;
1925 }
1926}
1927
1928static void pred16x16_dc_c(uint8_t *src, int stride){
1929 int i, dc=0;
1930
1931 for(i=0;i<16; i++){
1932 dc+= src[-1+i*stride];
1933 }
1934
1935 for(i=0;i<16; i++){
1936 dc+= src[i-stride];
1937 }
1938
1939 dc= 0x01010101*((dc + 16)>>5);
1940
1941 for(i=0; i<16; i++){
1942 ((uint32_t*)(src+i*stride))[0]=
1943 ((uint32_t*)(src+i*stride))[1]=
1944 ((uint32_t*)(src+i*stride))[2]=
1945 ((uint32_t*)(src+i*stride))[3]= dc;
1946 }
1947}
1948
1949static void pred16x16_left_dc_c(uint8_t *src, int stride){
1950 int i, dc=0;
1951
1952 for(i=0;i<16; i++){
1953 dc+= src[-1+i*stride];
1954 }
1955
1956 dc= 0x01010101*((dc + 8)>>4);
1957
1958 for(i=0; i<16; i++){
1959 ((uint32_t*)(src+i*stride))[0]=
1960 ((uint32_t*)(src+i*stride))[1]=
1961 ((uint32_t*)(src+i*stride))[2]=
1962 ((uint32_t*)(src+i*stride))[3]= dc;
1963 }
1964}
1965
1966static void pred16x16_top_dc_c(uint8_t *src, int stride){
1967 int i, dc=0;
1968
1969 for(i=0;i<16; i++){
1970 dc+= src[i-stride];
1971 }
1972 dc= 0x01010101*((dc + 8)>>4);
1973
1974 for(i=0; i<16; i++){
1975 ((uint32_t*)(src+i*stride))[0]=
1976 ((uint32_t*)(src+i*stride))[1]=
1977 ((uint32_t*)(src+i*stride))[2]=
1978 ((uint32_t*)(src+i*stride))[3]= dc;
1979 }
1980}
1981
1982static void pred16x16_128_dc_c(uint8_t *src, int stride){
1983 int i;
1984
1985 for(i=0; i<16; i++){
1986 ((uint32_t*)(src+i*stride))[0]=
1987 ((uint32_t*)(src+i*stride))[1]=
1988 ((uint32_t*)(src+i*stride))[2]=
1989 ((uint32_t*)(src+i*stride))[3]= 0x01010101U*128U;
1990 }
1991}
1992
8b82a956 1993static inline void pred16x16_plane_compat_c(uint8_t *src, int stride, const int svq3){
30f73fc7
MN
1994 int i, j, k;
1995 int a;
1996 uint8_t *cm = cropTbl + MAX_NEG_CROP;
1997 const uint8_t * const src0 = src+7-stride;
1998 const uint8_t *src1 = src+8*stride-1;
1999 const uint8_t *src2 = src1-2*stride; // == src+6*stride-1;
2000 int H = src0[1] - src0[-1];
2001 int V = src1[0] - src2[ 0];
2002 for(k=2; k<=8; ++k) {
2003 src1 += stride; src2 -= stride;
2004 H += k*(src0[k] - src0[-k]);
2005 V += k*(src1[0] - src2[ 0]);
2006 }
8b82a956
MN
2007 if(svq3){
2008 H = ( 5*(H/4) ) / 16;
2009 V = ( 5*(V/4) ) / 16;
2e26c8d2
MM
2010
2011 /* required for 100% accuracy */
2012 i = H; H = V; V = i;
8b82a956
MN
2013 }else{
2014 H = ( 5*H+32 ) >> 6;
2015 V = ( 5*V+32 ) >> 6;
2016 }
30f73fc7
MN
2017
2018 a = 16*(src1[0] + src2[16] + 1) - 7*(V+H);
2019 for(j=16; j>0; --j) {
2020 int b = a;
2021 a += V;
2022 for(i=-16; i<0; i+=4) {
2023 src[16+i] = cm[ (b ) >> 5 ];
2024 src[17+i] = cm[ (b+ H) >> 5 ];
2025 src[18+i] = cm[ (b+2*H) >> 5 ];
2026 src[19+i] = cm[ (b+3*H) >> 5 ];
2027 b += 4*H;
0da71265 2028 }
30f73fc7
MN
2029 src += stride;
2030 }
0da71265
MN
2031}
2032
8b82a956
MN
2033static void pred16x16_plane_c(uint8_t *src, int stride){
2034 pred16x16_plane_compat_c(src, stride, 0);
2035}
2036
0da71265
MN
2037static void pred8x8_vertical_c(uint8_t *src, int stride){
2038 int i;
2039 const uint32_t a= ((uint32_t*)(src-stride))[0];
2040 const uint32_t b= ((uint32_t*)(src-stride))[1];
2041
2042 for(i=0; i<8; i++){
2043 ((uint32_t*)(src+i*stride))[0]= a;
2044 ((uint32_t*)(src+i*stride))[1]= b;
2045 }
2046}
2047
2048static void pred8x8_horizontal_c(uint8_t *src, int stride){
2049 int i;
2050
2051 for(i=0; i<8; i++){
2052 ((uint32_t*)(src+i*stride))[0]=
2053 ((uint32_t*)(src+i*stride))[1]= src[-1+i*stride]*0x01010101;
2054 }
2055}
2056
2057static void pred8x8_128_dc_c(uint8_t *src, int stride){
2058 int i;
2059
2060 for(i=0; i<4; i++){
2061 ((uint32_t*)(src+i*stride))[0]=
2062 ((uint32_t*)(src+i*stride))[1]= 0x01010101U*128U;
2063 }
2064 for(i=4; i<8; i++){
2065 ((uint32_t*)(src+i*stride))[0]=
2066 ((uint32_t*)(src+i*stride))[1]= 0x01010101U*128U;
2067 }
2068}
2069
2070static void pred8x8_left_dc_c(uint8_t *src, int stride){
2071 int i;
2072 int dc0, dc2;
2073
2074 dc0=dc2=0;
2075 for(i=0;i<4; i++){
2076 dc0+= src[-1+i*stride];
2077 dc2+= src[-1+(i+4)*stride];
2078 }
2079 dc0= 0x01010101*((dc0 + 2)>>2);
2080 dc2= 0x01010101*((dc2 + 2)>>2);
2081
2082 for(i=0; i<4; i++){
2083 ((uint32_t*)(src+i*stride))[0]=
2084 ((uint32_t*)(src+i*stride))[1]= dc0;
2085 }
2086 for(i=4; i<8; i++){
2087 ((uint32_t*)(src+i*stride))[0]=
2088 ((uint32_t*)(src+i*stride))[1]= dc2;
2089 }
2090}
2091
2092static void pred8x8_top_dc_c(uint8_t *src, int stride){
2093 int i;
2094 int dc0, dc1;
2095
2096 dc0=dc1=0;
2097 for(i=0;i<4; i++){
2098 dc0+= src[i-stride];
2099 dc1+= src[4+i-stride];
2100 }
2101 dc0= 0x01010101*((dc0 + 2)>>2);
2102 dc1= 0x01010101*((dc1 + 2)>>2);
2103
2104 for(i=0; i<4; i++){
2105 ((uint32_t*)(src+i*stride))[0]= dc0;
2106 ((uint32_t*)(src+i*stride))[1]= dc1;
2107 }
2108 for(i=4; i<8; i++){
2109 ((uint32_t*)(src+i*stride))[0]= dc0;
2110 ((uint32_t*)(src+i*stride))[1]= dc1;
2111 }
2112}
2113
2114
2115static void pred8x8_dc_c(uint8_t *src, int stride){
2116 int i;
2117 int dc0, dc1, dc2, dc3;
2118
2119 dc0=dc1=dc2=0;
2120 for(i=0;i<4; i++){
2121 dc0+= src[-1+i*stride] + src[i-stride];
2122 dc1+= src[4+i-stride];
2123 dc2+= src[-1+(i+4)*stride];
2124 }
2125 dc3= 0x01010101*((dc1 + dc2 + 4)>>3);
2126 dc0= 0x01010101*((dc0 + 4)>>3);
2127 dc1= 0x01010101*((dc1 + 2)>>2);
2128 dc2= 0x01010101*((dc2 + 2)>>2);
2129
2130 for(i=0; i<4; i++){
2131 ((uint32_t*)(src+i*stride))[0]= dc0;
2132 ((uint32_t*)(src+i*stride))[1]= dc1;
2133 }
2134 for(i=4; i<8; i++){
2135 ((uint32_t*)(src+i*stride))[0]= dc2;
2136 ((uint32_t*)(src+i*stride))[1]= dc3;
2137 }
2138}
2139
2140static void pred8x8_plane_c(uint8_t *src, int stride){
30f73fc7
MN
2141 int j, k;
2142 int a;
2143 uint8_t *cm = cropTbl + MAX_NEG_CROP;
2144 const uint8_t * const src0 = src+3-stride;
2145 const uint8_t *src1 = src+4*stride-1;
2146 const uint8_t *src2 = src1-2*stride; // == src+2*stride-1;
2147 int H = src0[1] - src0[-1];
2148 int V = src1[0] - src2[ 0];
2149 for(k=2; k<=4; ++k) {
2150 src1 += stride; src2 -= stride;
2151 H += k*(src0[k] - src0[-k]);
2152 V += k*(src1[0] - src2[ 0]);
2153 }
2154 H = ( 17*H+16 ) >> 5;
2155 V = ( 17*V+16 ) >> 5;
2156
2157 a = 16*(src1[0] + src2[8]+1) - 3*(V+H);
2158 for(j=8; j>0; --j) {
2159 int b = a;
2160 a += V;
2161 src[0] = cm[ (b ) >> 5 ];
2162 src[1] = cm[ (b+ H) >> 5 ];
2163 src[2] = cm[ (b+2*H) >> 5 ];
2164 src[3] = cm[ (b+3*H) >> 5 ];
2165 src[4] = cm[ (b+4*H) >> 5 ];
2166 src[5] = cm[ (b+5*H) >> 5 ];
2167 src[6] = cm[ (b+6*H) >> 5 ];
2168 src[7] = cm[ (b+7*H) >> 5 ];
2169 src += stride;
2170 }
0da71265
MN
2171}
2172
2173static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list,
2174 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
2175 int src_x_offset, int src_y_offset,
2176 qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op){
2177 MpegEncContext * const s = &h->s;
2178 const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
2179 const int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
2180 const int luma_xy= (mx&3) + ((my&3)<<2);
2181 uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*s->linesize;
2182 uint8_t * src_cb= pic->data[1] + (mx>>3) + (my>>3)*s->uvlinesize;
2183 uint8_t * src_cr= pic->data[2] + (mx>>3) + (my>>3)*s->uvlinesize;
2184 int extra_width= (s->flags&CODEC_FLAG_EMU_EDGE) ? 0 : 16; //FIXME increase edge?, IMHO not worth it
2185 int extra_height= extra_width;
2186 int emu=0;
2187 const int full_mx= mx>>2;
2188 const int full_my= my>>2;
2189
2190 assert(pic->data[0]);
2191
2192 if(mx&7) extra_width -= 3;
2193 if(my&7) extra_height -= 3;
2194
2195 if( full_mx < 0-extra_width
2196 || full_my < 0-extra_height
2197 || full_mx + 16/*FIXME*/ > s->width + extra_width
2198 || full_my + 16/*FIXME*/ > s->height + extra_height){
c009df3f 2199 ff_emulated_edge_mc(s->edge_emu_buffer, src_y - 2 - 2*s->linesize, s->linesize, 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, s->width, s->height);
0da71265
MN
2200 src_y= s->edge_emu_buffer + 2 + 2*s->linesize;
2201 emu=1;
2202 }
2203
2204 qpix_op[luma_xy](dest_y, src_y, s->linesize); //FIXME try variable height perhaps?
2205 if(!square){
2206 qpix_op[luma_xy](dest_y + delta, src_y + delta, s->linesize);
2207 }
2208
2209 if(s->flags&CODEC_FLAG_GRAY) return;
2210
2211 if(emu){
c009df3f 2212 ff_emulated_edge_mc(s->edge_emu_buffer, src_cb, s->uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), s->width>>1, s->height>>1);
0da71265
MN
2213 src_cb= s->edge_emu_buffer;
2214 }
2215 chroma_op(dest_cb, src_cb, s->uvlinesize, chroma_height, mx&7, my&7);
2216
2217 if(emu){
c009df3f 2218 ff_emulated_edge_mc(s->edge_emu_buffer, src_cr, s->uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), s->width>>1, s->height>>1);
0da71265
MN
2219 src_cr= s->edge_emu_buffer;
2220 }
2221 chroma_op(dest_cr, src_cr, s->uvlinesize, chroma_height, mx&7, my&7);
2222}
2223
9f2d1b4f 2224static inline void mc_part_std(H264Context *h, int n, int square, int chroma_height, int delta,
0da71265
MN
2225 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
2226 int x_offset, int y_offset,
2227 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
2228 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
2229 int list0, int list1){
2230 MpegEncContext * const s = &h->s;
2231 qpel_mc_func *qpix_op= qpix_put;
2232 h264_chroma_mc_func chroma_op= chroma_put;
2233
2234 dest_y += 2*x_offset + 2*y_offset*s-> linesize;
2235 dest_cb += x_offset + y_offset*s->uvlinesize;
2236 dest_cr += x_offset + y_offset*s->uvlinesize;
2237 x_offset += 8*s->mb_x;
2238 y_offset += 8*s->mb_y;
2239
2240 if(list0){
1924f3ce 2241 Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
0da71265
MN
2242 mc_dir_part(h, ref, n, square, chroma_height, delta, 0,
2243 dest_y, dest_cb, dest_cr, x_offset, y_offset,
2244 qpix_op, chroma_op);
2245
2246 qpix_op= qpix_avg;
2247 chroma_op= chroma_avg;
2248 }
2249
2250 if(list1){
1924f3ce 2251 Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
0da71265
MN
2252 mc_dir_part(h, ref, n, square, chroma_height, delta, 1,
2253 dest_y, dest_cb, dest_cr, x_offset, y_offset,
2254 qpix_op, chroma_op);
2255 }
2256}
2257
9f2d1b4f
LM
2258static inline void mc_part_weighted(H264Context *h, int n, int square, int chroma_height, int delta,
2259 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
2260 int x_offset, int y_offset,
2261 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
2262 h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op,
2263 h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg,
2264 int list0, int list1){
2265 MpegEncContext * const s = &h->s;
2266
2267 dest_y += 2*x_offset + 2*y_offset*s-> linesize;
2268 dest_cb += x_offset + y_offset*s->uvlinesize;
2269 dest_cr += x_offset + y_offset*s->uvlinesize;
2270 x_offset += 8*s->mb_x;
2271 y_offset += 8*s->mb_y;
2272
2273 if(list0 && list1){
2274 /* don't optimize for luma-only case, since B-frames usually
2275 * use implicit weights => chroma too. */
2276 uint8_t *tmp_cb = s->obmc_scratchpad;
2277 uint8_t *tmp_cr = tmp_cb + 8*s->uvlinesize;
2278 uint8_t *tmp_y = tmp_cr + 8*s->uvlinesize;
2279 int refn0 = h->ref_cache[0][ scan8[n] ];
2280 int refn1 = h->ref_cache[1][ scan8[n] ];
2281
2282 mc_dir_part(h, &h->ref_list[0][refn0], n, square, chroma_height, delta, 0,
2283 dest_y, dest_cb, dest_cr,
2284 x_offset, y_offset, qpix_put, chroma_put);
2285 mc_dir_part(h, &h->ref_list[1][refn1], n, square, chroma_height, delta, 1,
2286 tmp_y, tmp_cb, tmp_cr,
2287 x_offset, y_offset, qpix_put, chroma_put);
2288
2289 if(h->use_weight == 2){
2290 int weight0 = h->implicit_weight[refn0][refn1];
2291 int weight1 = 64 - weight0;
2292 luma_weight_avg( dest_y, tmp_y, s-> linesize, 5, weight0, weight1, 0, 0);
2293 chroma_weight_avg(dest_cb, tmp_cb, s->uvlinesize, 5, weight0, weight1, 0, 0);
2294 chroma_weight_avg(dest_cr, tmp_cr, s->uvlinesize, 5, weight0, weight1, 0, 0);
2295 }else{
2296 luma_weight_avg(dest_y, tmp_y, s->linesize, h->luma_log2_weight_denom,
2297 h->luma_weight[0][refn0], h->luma_weight[1][refn1],
2298 h->luma_offset[0][refn0], h->luma_offset[1][refn1]);
2299 chroma_weight_avg(dest_cb, tmp_cb, s->uvlinesize, h->chroma_log2_weight_denom,
2300 h->chroma_weight[0][refn0][0], h->chroma_weight[1][refn1][0],
2301 h->chroma_offset[0][refn0][0], h->chroma_offset[1][refn1][0]);
2302 chroma_weight_avg(dest_cr, tmp_cr, s->uvlinesize, h->chroma_log2_weight_denom,
2303 h->chroma_weight[0][refn0][1], h->chroma_weight[1][refn1][1],
2304 h->chroma_offset[0][refn0][1], h->chroma_offset[1][refn1][1]);
2305 }
2306 }else{
2307 int list = list1 ? 1 : 0;
2308 int refn = h->ref_cache[list][ scan8[n] ];
2309 Picture *ref= &h->ref_list[list][refn];
2310 mc_dir_part(h, ref, n, square, chroma_height, delta, list,
2311 dest_y, dest_cb, dest_cr, x_offset, y_offset,
2312 qpix_put, chroma_put);
2313
2314 luma_weight_op(dest_y, s->linesize, h->luma_log2_weight_denom,
2315 h->luma_weight[list][refn], h->luma_offset[list][refn]);
2316 if(h->use_weight_chroma){
2317 chroma_weight_op(dest_cb, s->uvlinesize, h->chroma_log2_weight_denom,
2318 h->chroma_weight[list][refn][0], h->chroma_offset[list][refn][0]);
2319 chroma_weight_op(dest_cr, s->uvlinesize, h->chroma_log2_weight_denom,
2320 h->chroma_weight[list][refn][1], h->chroma_offset[list][refn][1]);
2321 }
2322 }
2323}
2324
2325static inline void mc_part(H264Context *h, int n, int square, int chroma_height, int delta,
2326 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
2327 int x_offset, int y_offset,
2328 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
2329 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
2330 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
2331 int list0, int list1){
2332 if((h->use_weight==2 && list0 && list1
2333 && (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ] != 32))
2334 || h->use_weight==1)
2335 mc_part_weighted(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
2336 x_offset, y_offset, qpix_put, chroma_put,
2337 weight_op[0], weight_op[3], weight_avg[0], weight_avg[3], list0, list1);
2338 else
2339 mc_part_std(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
2340 x_offset, y_offset, qpix_put, chroma_put, qpix_avg, chroma_avg, list0, list1);
2341}
2342
0da71265
MN
2343static void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
2344 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
9f2d1b4f
LM
2345 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
2346 h264_weight_func *weight_op, h264_biweight_func *weight_avg){
0da71265 2347 MpegEncContext * const s = &h->s;
7bc9090a 2348 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
0da71265
MN
2349 const int mb_type= s->current_picture.mb_type[mb_xy];
2350
2351 assert(IS_INTER(mb_type));
2352
2353 if(IS_16X16(mb_type)){
2354 mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0,
2355 qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
9f2d1b4f 2356 &weight_op[0], &weight_avg[0],
0da71265
MN
2357 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
2358 }else if(IS_16X8(mb_type)){
2359 mc_part(h, 0, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 0,
2360 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
9f2d1b4f 2361 &weight_op[1], &weight_avg[1],
0da71265
MN
2362 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
2363 mc_part(h, 8, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 4,
2364 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
9f2d1b4f 2365 &weight_op[1], &weight_avg[1],
0da71265
MN
2366 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
2367 }else if(IS_8X16(mb_type)){
2368 mc_part(h, 0, 0, 8, 8*s->linesize, dest_y, dest_cb, dest_cr, 0, 0,
2369 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
9f2d1b4f 2370 &weight_op[2], &weight_avg[2],
0da71265
MN
2371 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
2372 mc_part(h, 4, 0, 8, 8*s->linesize, dest_y, dest_cb, dest_cr, 4, 0,
2373 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
9f2d1b4f 2374 &weight_op[2], &weight_avg[2],
0da71265
MN
2375 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
2376 }else{
2377 int i;
2378
2379 assert(IS_8X8(mb_type));
2380
2381 for(i=0; i<4; i++){
2382 const int sub_mb_type= h->sub_mb_type[i];
2383 const int n= 4*i;
2384 int x_offset= (i&1)<<2;
2385 int y_offset= (i&2)<<1;
2386
2387 if(IS_SUB_8X8(sub_mb_type)){
2388 mc_part(h, n, 1, 4, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
2389 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
9f2d1b4f 2390 &weight_op[3], &weight_avg[3],
0da71265
MN
2391 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2392 }else if(IS_SUB_8X4(sub_mb_type)){
2393 mc_part(h, n , 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset,
2394 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
9f2d1b4f 2395 &weight_op[4], &weight_avg[4],
0da71265
MN
2396 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2397 mc_part(h, n+2, 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
2398 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
9f2d1b4f 2399 &weight_op[4], &weight_avg[4],
0da71265
MN
2400 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2401 }else if(IS_SUB_4X8(sub_mb_type)){
2402 mc_part(h, n , 0, 4, 4*s->linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
2403 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
9f2d1b4f 2404 &weight_op[5], &weight_avg[5],
0da71265
MN
2405 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2406 mc_part(h, n+1, 0, 4, 4*s->linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
2407 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
9f2d1b4f 2408 &weight_op[5], &weight_avg[5],
0da71265
MN
2409 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2410 }else{
2411 int j;
2412 assert(IS_SUB_4X4(sub_mb_type));
2413 for(j=0; j<4; j++){
2414 int sub_x_offset= x_offset + 2*(j&1);
2415 int sub_y_offset= y_offset + (j&2);
2416 mc_part(h, n+j, 1, 2, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
2417 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
9f2d1b4f 2418 &weight_op[6], &weight_avg[6],
0da71265
MN
2419 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2420 }
2421 }
2422 }
2423 }
2424}
2425
2426static void decode_init_vlc(H264Context *h){
2427 static int done = 0;
2428
2429 if (!done) {
2430 int i;
2431 done = 1;
2432
2433 init_vlc(&chroma_dc_coeff_token_vlc, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 4*5,
2434 &chroma_dc_coeff_token_len [0], 1, 1,
073c2593 2435 &chroma_dc_coeff_token_bits[0], 1, 1, 1);
0da71265
MN
2436
2437 for(i=0; i<4; i++){
2438 init_vlc(&coeff_token_vlc[i], COEFF_TOKEN_VLC_BITS, 4*17,
2439 &coeff_token_len [i][0], 1, 1,
073c2593 2440 &coeff_token_bits[i][0], 1, 1, 1);
0da71265
MN
2441 }
2442
2443 for(i=0; i<3; i++){
2444 init_vlc(&chroma_dc_total_zeros_vlc[i], CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 4,
2445 &chroma_dc_total_zeros_len [i][0], 1, 1,
073c2593 2446 &chroma_dc_total_zeros_bits[i][0], 1, 1, 1);
0da71265
MN
2447 }
2448 for(i=0; i<15; i++){
2449 init_vlc(&total_zeros_vlc[i], TOTAL_ZEROS_VLC_BITS, 16,
2450 &total_zeros_len [i][0], 1, 1,
073c2593 2451 &total_zeros_bits[i][0], 1, 1, 1);
0da71265
MN
2452 }
2453
2454 for(i=0; i<6; i++){
2455 init_vlc(&run_vlc[i], RUN_VLC_BITS, 7,
2456 &run_len [i][0], 1, 1,
073c2593 2457 &run_bits[i][0], 1, 1, 1);
0da71265
MN
2458 }
2459 init_vlc(&run7_vlc, RUN7_VLC_BITS, 16,
2460 &run_len [6][0], 1, 1,
073c2593 2461 &run_bits[6][0], 1, 1, 1);
0da71265
MN
2462 }
2463}
2464
2465/**
2466 * Sets the intra prediction function pointers.
2467 */
2468static void init_pred_ptrs(H264Context *h){
2469// MpegEncContext * const s = &h->s;
2470
2471 h->pred4x4[VERT_PRED ]= pred4x4_vertical_c;
2472 h->pred4x4[HOR_PRED ]= pred4x4_horizontal_c;
2473 h->pred4x4[DC_PRED ]= pred4x4_dc_c;
2474 h->pred4x4[DIAG_DOWN_LEFT_PRED ]= pred4x4_down_left_c;
2475 h->pred4x4[DIAG_DOWN_RIGHT_PRED]= pred4x4_down_right_c;
2476 h->pred4x4[VERT_RIGHT_PRED ]= pred4x4_vertical_right_c;
2477 h->pred4x4[HOR_DOWN_PRED ]= pred4x4_horizontal_down_c;
2478 h->pred4x4[VERT_LEFT_PRED ]= pred4x4_vertical_left_c;
2479 h->pred4x4[HOR_UP_PRED ]= pred4x4_horizontal_up_c;
2480 h->pred4x4[LEFT_DC_PRED ]= pred4x4_left_dc_c;
2481 h->pred4x4[TOP_DC_PRED ]= pred4x4_top_dc_c;
2482 h->pred4x4[DC_128_PRED ]= pred4x4_128_dc_c;
2483
2484 h->pred8x8[DC_PRED8x8 ]= pred8x8_dc_c;
2485 h->pred8x8[VERT_PRED8x8 ]= pred8x8_vertical_c;
2486 h->pred8x8[HOR_PRED8x8 ]= pred8x8_horizontal_c;
2487 h->pred8x8[PLANE_PRED8x8 ]= pred8x8_plane_c;
2488 h->pred8x8[LEFT_DC_PRED8x8]= pred8x8_left_dc_c;
2489 h->pred8x8[TOP_DC_PRED8x8 ]= pred8x8_top_dc_c;
2490 h->pred8x8[DC_128_PRED8x8 ]= pred8x8_128_dc_c;
2491
2492 h->pred16x16[DC_PRED8x8 ]= pred16x16_dc_c;
2493 h->pred16x16[VERT_PRED8x8 ]= pred16x16_vertical_c;
2494 h->pred16x16[HOR_PRED8x8 ]= pred16x16_horizontal_c;
2495 h->pred16x16[PLANE_PRED8x8 ]= pred16x16_plane_c;
2496 h->pred16x16[LEFT_DC_PRED8x8]= pred16x16_left_dc_c;
2497 h->pred16x16[TOP_DC_PRED8x8 ]= pred16x16_top_dc_c;
2498 h->pred16x16[DC_128_PRED8x8 ]= pred16x16_128_dc_c;
2499}
2500
0da71265 2501static void free_tables(H264Context *h){
0da71265 2502 av_freep(&h->intra4x4_pred_mode);
e5017ab8
LA
2503 av_freep(&h->chroma_pred_mode_table);
2504 av_freep(&h->cbp_table);
9e528114
LA
2505 av_freep(&h->mvd_table[0]);
2506 av_freep(&h->mvd_table[1]);
5ad984c9 2507 av_freep(&h->direct_table);
0da71265
MN
2508 av_freep(&h->non_zero_count);
2509 av_freep(&h->slice_table_base);
53c05b1e 2510 av_freep(&h->top_border);
0da71265 2511 h->slice_table= NULL;
e5017ab8 2512
0da71265
MN
2513 av_freep(&h->mb2b_xy);
2514 av_freep(&h->mb2b8_xy);
9f2d1b4f
LM
2515
2516 av_freep(&h->s.obmc_scratchpad);
0da71265
MN
2517}
2518
2519/**
2520 * allocates tables.
2521 * needs widzh/height
2522 */
2523static int alloc_tables(H264Context *h){
2524 MpegEncContext * const s = &h->s;
7bc9090a 2525 const int big_mb_num= s->mb_stride * (s->mb_height+1);
0da71265
MN
2526 int x,y;
2527
2528 CHECKED_ALLOCZ(h->intra4x4_pred_mode, big_mb_num * 8 * sizeof(uint8_t))
e5017ab8 2529
53c05b1e 2530 CHECKED_ALLOCZ(h->non_zero_count , big_mb_num * 16 * sizeof(uint8_t))
0da71265 2531 CHECKED_ALLOCZ(h->slice_table_base , big_mb_num * sizeof(uint8_t))
53c05b1e 2532 CHECKED_ALLOCZ(h->top_border , s->mb_width * (16+8+8) * sizeof(uint8_t))
5d0e4cb8 2533 CHECKED_ALLOCZ(h->cbp_table, big_mb_num * sizeof(uint16_t))
0da71265 2534
e5017ab8
LA
2535 if( h->pps.cabac ) {
2536 CHECKED_ALLOCZ(h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t))
9e528114
LA
2537 CHECKED_ALLOCZ(h->mvd_table[0], 32*big_mb_num * sizeof(uint16_t));
2538 CHECKED_ALLOCZ(h->mvd_table[1], 32*big_mb_num * sizeof(uint16_t));
5ad984c9 2539 CHECKED_ALLOCZ(h->direct_table, 32*big_mb_num * sizeof(uint8_t));
e5017ab8
LA
2540 }
2541
0da71265 2542 memset(h->slice_table_base, -1, big_mb_num * sizeof(uint8_t));
7bc9090a 2543 h->slice_table= h->slice_table_base + s->mb_stride + 1;
0da71265
MN
2544
2545 CHECKED_ALLOCZ(h->mb2b_xy , big_mb_num * sizeof(uint16_t));
2546 CHECKED_ALLOCZ(h->mb2b8_xy , big_mb_num * sizeof(uint16_t));
2547 for(y=0; y<s->mb_height; y++){
2548 for(x=0; x<s->mb_width; x++){
7bc9090a 2549 const int mb_xy= x + y*s->mb_stride;
0da71265
MN
2550 const int b_xy = 4*x + 4*y*h->b_stride;
2551 const int b8_xy= 2*x + 2*y*h->b8_stride;
2552
2553 h->mb2b_xy [mb_xy]= b_xy;
2554 h->mb2b8_xy[mb_xy]= b8_xy;
2555 }
2556 }
9f2d1b4f 2557
9c6221ae
GV
2558 s->obmc_scratchpad = NULL;
2559
0da71265
MN
2560 return 0;
2561fail:
2562 free_tables(h);
2563 return -1;
2564}
2565
2566static void common_init(H264Context *h){
2567 MpegEncContext * const s = &h->s;
0da71265
MN
2568
2569 s->width = s->avctx->width;
2570 s->height = s->avctx->height;
2571 s->codec_id= s->avctx->codec->id;
2572
2573 init_pred_ptrs(h);
2574
9a41c2c7 2575 s->unrestricted_mv=1;
0da71265
MN
2576 s->decode=1; //FIXME
2577}
2578
2579static int decode_init(AVCodecContext *avctx){
2580 H264Context *h= avctx->priv_data;
2581 MpegEncContext * const s = &h->s;
2582
3edcacde
MN
2583 MPV_decode_defaults(s);
2584
0da71265
MN
2585 s->avctx = avctx;
2586 common_init(h);
2587
2588 s->out_format = FMT_H264;
2589 s->workaround_bugs= avctx->workaround_bugs;
2590
2591 // set defaults
0da71265
MN
2592// s->decode_mb= ff_h263_decode_mb;
2593 s->low_delay= 1;
2594 avctx->pix_fmt= PIX_FMT_YUV420P;
2595
2596 decode_init_vlc(h);
2597
bf835aee 2598 if(avctx->codec_tag != 0x31637661 && avctx->codec_tag != 0x31435641) // avc1
4770b1b4
RT
2599 h->is_avc = 0;
2600 else {
2601 if((avctx->extradata_size == 0) || (avctx->extradata == NULL)) {
2602 av_log(avctx, AV_LOG_ERROR, "AVC codec requires avcC data\n");
2603 return -1;
2604 }
2605 h->is_avc = 1;
2606 h->got_avcC = 0;
2607 }
2608
0da71265
MN
2609 return 0;
2610}
2611
2612static void frame_start(H264Context *h){
2613 MpegEncContext * const s = &h->s;
2614 int i;
2615
2616 MPV_frame_start(s, s->avctx);
2617 ff_er_frame_start(s);
0da71265
MN
2618
2619 assert(s->linesize && s->uvlinesize);
2620
2621 for(i=0; i<16; i++){
2622 h->block_offset[i]= 4*((scan8[i] - scan8[0])&7) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
2623 h->chroma_subblock_offset[i]= 2*((scan8[i] - scan8[0])&7) + 2*s->uvlinesize*((scan8[i] - scan8[0])>>3);
2624 }
2625 for(i=0; i<4; i++){
2626 h->block_offset[16+i]=
2627 h->block_offset[20+i]= 4*((scan8[i] - scan8[0])&7) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
2628 }
2629
934b0821
LM
2630 /* can't be in alloc_tables because linesize isn't known there.
2631 * FIXME: redo bipred weight to not require extra buffer? */
2632 if(!s->obmc_scratchpad)
2633 s->obmc_scratchpad = av_malloc(16*s->linesize + 2*8*s->uvlinesize);
2634
0da71265
MN
2635// s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
2636}
2637
53c05b1e
MN
2638static inline void backup_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize){
2639 MpegEncContext * const s = &h->s;
2640 int i;
2641
2642 src_y -= linesize;
2643 src_cb -= uvlinesize;
2644 src_cr -= uvlinesize;
2645
2646 h->left_border[0]= h->top_border[s->mb_x][15];
2647 for(i=1; i<17; i++){
2648 h->left_border[i]= src_y[15+i* linesize];
2649 }
2650
2651 *(uint64_t*)(h->top_border[s->mb_x]+0)= *(uint64_t*)(src_y + 16*linesize);
2652 *(uint64_t*)(h->top_border[s->mb_x]+8)= *(uint64_t*)(src_y +8+16*linesize);
2653
2654 if(!(s->flags&CODEC_FLAG_GRAY)){
2655 h->left_border[17 ]= h->top_border[s->mb_x][16+7];
2656 h->left_border[17+9]= h->top_border[s->mb_x][24+7];
2657 for(i=1; i<9; i++){
2658 h->left_border[i+17 ]= src_cb[7+i*uvlinesize];
2659 h->left_border[i+17+9]= src_cr[7+i*uvlinesize];
2660 }
2661 *(uint64_t*)(h->top_border[s->mb_x]+16)= *(uint64_t*)(src_cb+8*uvlinesize);
2662 *(uint64_t*)(h->top_border[s->mb_x]+24)= *(uint64_t*)(src_cr+8*uvlinesize);
2663 }
2664}
2665
2666static inline void xchg_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg){
2667 MpegEncContext * const s = &h->s;
2668 int temp8, i;
2669 uint64_t temp64;
d89dc06a
LM
2670 int deblock_left = (s->mb_x > 0);
2671 int deblock_top = (s->mb_y > 0);
53c05b1e
MN
2672
2673 src_y -= linesize + 1;
2674 src_cb -= uvlinesize + 1;
2675 src_cr -= uvlinesize + 1;
2676
2677#define XCHG(a,b,t,xchg)\
2678t= a;\
2679if(xchg)\
2680 a= b;\
2681b= t;
d89dc06a
LM
2682
2683 if(deblock_left){
2684 for(i = !deblock_top; i<17; i++){
2685 XCHG(h->left_border[i ], src_y [i* linesize], temp8, xchg);
2686 }
2687 }
2688
2689 if(deblock_top){
2690 XCHG(*(uint64_t*)(h->top_border[s->mb_x]+0), *(uint64_t*)(src_y +1), temp64, xchg);
2691 XCHG(*(uint64_t*)(h->top_border[s->mb_x]+8), *(uint64_t*)(src_y +9), temp64, 1);
53c05b1e 2692 }
53c05b1e
MN
2693
2694 if(!(s->flags&CODEC_FLAG_GRAY)){
d89dc06a
LM
2695 if(deblock_left){
2696 for(i = !deblock_top; i<9; i++){
2697 XCHG(h->left_border[i+17 ], src_cb[i*uvlinesize], temp8, xchg);
2698 XCHG(h->left_border[i+17+9], src_cr[i*uvlinesize], temp8, xchg);
2699 }
2700 }
2701 if(deblock_top){
2702 XCHG(*(uint64_t*)(h->top_border[s->mb_x]+16), *(uint64_t*)(src_cb+1), temp64, 1);
2703 XCHG(*(uint64_t*)(h->top_border[s->mb_x]+24), *(uint64_t*)(src_cr+1), temp64, 1);
53c05b1e 2704 }
53c05b1e
MN
2705 }
2706}
2707
0da71265
MN
2708static void hl_decode_mb(H264Context *h){
2709 MpegEncContext * const s = &h->s;
2710 const int mb_x= s->mb_x;
2711 const int mb_y= s->mb_y;
7bc9090a 2712 const int mb_xy= mb_x + mb_y*s->mb_stride;
0da71265
MN
2713 const int mb_type= s->current_picture.mb_type[mb_xy];
2714 uint8_t *dest_y, *dest_cb, *dest_cr;
2715 int linesize, uvlinesize /*dct_offset*/;
2716 int i;
2717
2718 if(!s->decode)
2719 return;
2720
2721 if(s->mb_skiped){
2722 }
2723
2724 dest_y = s->current_picture.data[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
2725 dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
2726 dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
2727
2728 if (h->mb_field_decoding_flag) {
2729 linesize = s->linesize * 2;
2730 uvlinesize = s->uvlinesize * 2;
2731 if(mb_y&1){ //FIXME move out of this func?
2732 dest_y -= s->linesize*15;
2733 dest_cb-= s->linesize*7;
2734 dest_cr-= s->linesize*7;
2735 }
2736 } else {
2737 linesize = s->linesize;
2738 uvlinesize = s->uvlinesize;
2739// dct_offset = s->linesize * 16;
2740 }
2741
6fbcaaa0
LLL
2742 if (IS_INTRA_PCM(mb_type)) {
2743 unsigned int x, y;
2744
2745 // The pixels are stored in h->mb array in the same order as levels,
2746 // copy them in output in the correct order.
2747 for(i=0; i<16; i++) {
2748 for (y=0; y<4; y++) {
2749 for (x=0; x<4; x++) {
2750 *(dest_y + h->block_offset[i] + y*linesize + x) = h->mb[i*16+y*4+x];
2751 }
2752 }
2753 }
2754 for(i=16; i<16+4; i++) {
2755 for (y=0; y<4; y++) {
2756 for (x=0; x<4; x++) {
2757 *(dest_cb + h->block_offset[i] + y*uvlinesize + x) = h->mb[i*16+y*4+x];
2758 }
2759 }
2760 }
2761 for(i=20; i<20+4; i++) {
2762 for (y=0; y<4; y++) {
2763 for (x=0; x<4; x++) {
2764 *(dest_cr + h->block_offset[i] + y*uvlinesize + x) = h->mb[i*16+y*4+x];
2765 }
2766 }
2767 }
2768 goto deblock;
2769 }
0da71265 2770 if(IS_INTRA(mb_type)){
53c05b1e
MN
2771 if(h->deblocking_filter)
2772 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1);
2773
0da71265
MN
2774 if(!(s->flags&CODEC_FLAG_GRAY)){
2775 h->pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
2776 h->pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
2777 }
2778
2779 if(IS_INTRA4x4(mb_type)){
2780 if(!s->encoding){
2781 for(i=0; i<16; i++){
2782 uint8_t * const ptr= dest_y + h->block_offset[i];
a9799653 2783 uint8_t *topright;
0da71265
MN
2784 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
2785 int tr;
2786
a9799653
MN
2787 if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
2788 const int topright_avail= (h->topright_samples_available<<i)&0x8000;
2789 assert(mb_y || linesize <= h->block_offset[i]);
2790 if(!topright_avail){
2791 tr= ptr[3 - linesize]*0x01010101;
2792 topright= (uint8_t*) &tr;
2793 }else if(i==5 && h->deblocking_filter){
2794 tr= *(uint32_t*)h->top_border[mb_x+1];
2795 topright= (uint8_t*) &tr;
2796 }else
2797 topright= ptr + 4 - linesize;
2798 }else
2799 topright= NULL;
0da71265
MN
2800
2801 h->pred4x4[ dir ](ptr, topright, linesize);
8b82a956
MN
2802 if(h->non_zero_count_cache[ scan8[i] ]){
2803 if(s->codec_id == CODEC_ID_H264)
0fa8158d 2804 s->dsp.h264_idct_add(ptr, h->mb + i*16, linesize);
8b82a956
MN
2805 else
2806 svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, 0);
2807 }
0da71265
MN
2808 }
2809 }
2810 }else{
2811 h->pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
8b82a956
MN
2812 if(s->codec_id == CODEC_ID_H264)
2813 h264_luma_dc_dequant_idct_c(h->mb, s->qscale);
2814 else
2815 svq3_luma_dc_dequant_idct_c(h->mb, s->qscale);
0da71265 2816 }
53c05b1e
MN
2817 if(h->deblocking_filter)
2818 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0);
8b82a956 2819 }else if(s->codec_id == CODEC_ID_H264){
0da71265
MN
2820 hl_motion(h, dest_y, dest_cb, dest_cr,
2821 s->dsp.put_h264_qpel_pixels_tab, s->dsp.put_h264_chroma_pixels_tab,
9f2d1b4f
LM
2822 s->dsp.avg_h264_qpel_pixels_tab, s->dsp.avg_h264_chroma_pixels_tab,
2823 s->dsp.weight_h264_pixels_tab, s->dsp.biweight_h264_pixels_tab);
0da71265
MN
2824 }
2825
2826
2827 if(!IS_INTRA4x4(mb_type)){
4704097a
MN
2828 if(s->codec_id == CODEC_ID_H264){
2829 for(i=0; i<16; i++){
2830 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below
2831 uint8_t * const ptr= dest_y + h->block_offset[i];
0fa8158d 2832 s->dsp.h264_idct_add(ptr, h->mb + i*16, linesize);
4704097a
MN
2833 }
2834 }
2835 }else{
2836 for(i=0; i<16; i++){
2837 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below
2838 uint8_t * const ptr= dest_y + h->block_offset[i];
8b82a956 2839 svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);
4704097a 2840 }
0da71265
MN
2841 }
2842 }
2843 }
2844
2845 if(!(s->flags&CODEC_FLAG_GRAY)){
2846 chroma_dc_dequant_idct_c(h->mb + 16*16, h->chroma_qp);
2847 chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->chroma_qp);
4704097a
MN
2848 if(s->codec_id == CODEC_ID_H264){
2849 for(i=16; i<16+4; i++){
2850 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2851 uint8_t * const ptr= dest_cb + h->block_offset[i];
0fa8158d 2852 s->dsp.h264_idct_add(ptr, h->mb + i*16, uvlinesize);
4704097a 2853 }
0da71265 2854 }
4704097a
MN
2855 for(i=20; i<20+4; i++){
2856 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2857 uint8_t * const ptr= dest_cr + h->block_offset[i];
0fa8158d 2858 s->dsp.h264_idct_add(ptr, h->mb + i*16, uvlinesize);
4704097a
MN
2859 }
2860 }
2861 }else{
2862 for(i=16; i<16+4; i++){
2863 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2864 uint8_t * const ptr= dest_cb + h->block_offset[i];
8b82a956 2865 svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2);
4704097a
MN
2866 }
2867 }
2868 for(i=20; i<20+4; i++){
2869 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2870 uint8_t * const ptr= dest_cr + h->block_offset[i];
2871 svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2);
2872 }
0da71265
MN
2873 }
2874 }
2875 }
6fbcaaa0 2876deblock:
53c05b1e
MN
2877 if(h->deblocking_filter) {
2878 backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
46f2f05f 2879 fill_caches(h, mb_type, 1); //FIXME dont fill stuff which isnt used by filter_mb
53c05b1e
MN
2880 filter_mb(h, mb_x, mb_y, dest_y, dest_cb, dest_cr);
2881 }
0da71265
MN
2882}
2883
0da71265
MN
2884/**
2885 * fills the default_ref_list.
2886 */
2887static int fill_default_ref_list(H264Context *h){
2888 MpegEncContext * const s = &h->s;
2889 int i;
827c91bf 2890 int smallest_poc_greater_than_current = -1;
0da71265
MN
2891 Picture sorted_short_ref[16];
2892
2893 if(h->slice_type==B_TYPE){
2894 int out_i;
2895 int limit= -1;
2896
827c91bf 2897 /* sort frame according to poc in B slice */
0da71265
MN
2898 for(out_i=0; out_i<h->short_ref_count; out_i++){
2899 int best_i=-1;
792bb815 2900 int best_poc=INT_MAX;
0da71265
MN
2901
2902 for(i=0; i<h->short_ref_count; i++){
2903 const int poc= h->short_ref[i]->poc;
2904 if(poc > limit && poc < best_poc){
2905 best_poc= poc;
2906 best_i= i;
2907 }
2908 }
2909
2910 assert(best_i != -1);
2911
2912 limit= best_poc;
2913 sorted_short_ref[out_i]= *h->short_ref[best_i];
827c91bf
LLL
2914 tprintf("sorted poc: %d->%d poc:%d fn:%d\n", best_i, out_i, sorted_short_ref[out_i].poc, sorted_short_ref[out_i].frame_num);
2915 if (-1 == smallest_poc_greater_than_current) {
2916 if (h->short_ref[best_i]->poc >= s->current_picture_ptr->poc) {
2917 smallest_poc_greater_than_current = out_i;
2918 }
2919 }
0da71265
MN
2920 }
2921 }
2922
2923 if(s->picture_structure == PICT_FRAME){
2924 if(h->slice_type==B_TYPE){
0da71265 2925 int list;
827c91bf 2926 tprintf("current poc: %d, smallest_poc_greater_than_current: %d\n", s->current_picture_ptr->poc, smallest_poc_greater_than_current);
0da71265 2927
827c91bf 2928 // find the largest poc
0da71265 2929 for(list=0; list<2; list++){
827c91bf 2930 int index = 0;
3b33943e
MN
2931 int j= -99;
2932 int step= list ? -1 : 1;
827c91bf 2933
3b33943e
MN
2934 for(i=0; i<h->short_ref_count && index < h->ref_count[list]; i++, j+=step) {
2935 while(j<0 || j>= h->short_ref_count){
2936 step = -step;
2937 j= smallest_poc_greater_than_current + (step>>1);
0da71265 2938 }
3b33943e
MN
2939 if(sorted_short_ref[j].reference != 3) continue;
2940 h->default_ref_list[list][index ]= sorted_short_ref[j];
2941 h->default_ref_list[list][index++].pic_id= sorted_short_ref[j].frame_num;
0da71265
MN
2942 }
2943
827c91bf
LLL
2944 for(i = 0; i < 16 && index < h->ref_count[ list ]; i++){
2945 if(h->long_ref[i] == NULL) continue;
0da71265
MN
2946 if(h->long_ref[i]->reference != 3) continue;
2947
2948 h->default_ref_list[ list ][index ]= *h->long_ref[i];
2949 h->default_ref_list[ list ][index++].pic_id= i;;
2950 }
2951
3b33943e 2952 if(list && (smallest_poc_greater_than_current<=0 || smallest_poc_greater_than_current>=h->short_ref_count) && (1 < index)){
827c91bf
LLL
2953 // swap the two first elements of L1 when
2954 // L0 and L1 are identical
0da71265
MN
2955 Picture temp= h->default_ref_list[1][0];
2956 h->default_ref_list[1][0] = h->default_ref_list[1][1];
2957 h->default_ref_list[1][0] = temp;
2958 }
2959
2960 if(index < h->ref_count[ list ])
2961 memset(&h->default_ref_list[list][index], 0, sizeof(Picture)*(h->ref_count[ list ] - index));
2962 }
2963 }else{
2964 int index=0;
2965 for(i=0; i<h->short_ref_count && index < h->ref_count[0]; i++){
2966 if(h->short_ref[i]->reference != 3) continue; //FIXME refernce field shit
2967 h->default_ref_list[0][index ]= *h->short_ref[i];
2968 h->default_ref_list[0][index++].pic_id= h->short_ref[i]->frame_num;
2969 }
827c91bf
LLL
2970 for(i = 0; i < 16 && index < h->ref_count[0]; i++){
2971 if(h->long_ref[i] == NULL) continue;
0da71265
MN
2972 if(h->long_ref[i]->reference != 3) continue;
2973 h->default_ref_list[0][index ]= *h->long_ref[i];
2974 h->default_ref_list[0][index++].pic_id= i;;
2975 }
2976 if(index < h->ref_count[0])
2977 memset(&h->default_ref_list[0][index], 0, sizeof(Picture)*(h->ref_count[0] - index));
2978 }
2979 }else{ //FIELD
2980 if(h->slice_type==B_TYPE){
2981 }else{
2982 //FIXME second field balh
2983 }
2984 }
827c91bf
LLL
2985#ifdef TRACE
2986 for (i=0; i<h->ref_count[0]; i++) {
2987 tprintf("List0: %s fn:%d 0x%p\n", (h->default_ref_list[0][i].long_ref ? "LT" : "ST"), h->default_ref_list[0][i].pic_id, h->default_ref_list[0][i].data[0]);
2988 }
2989 if(h->slice_type==B_TYPE){
2990 for (i=0; i<h->ref_count[1]; i++) {
2991 tprintf("List1: %s fn:%d 0x%p\n", (h->default_ref_list[1][i].long_ref ? "LT" : "ST"), h->default_ref_list[1][i].pic_id, h->default_ref_list[0][i].data[0]);
2992 }
2993 }
2994#endif
0da71265
MN
2995 return 0;
2996}
2997
827c91bf
LLL
2998static void print_short_term(H264Context *h);
2999static void print_long_term(H264Context *h);
3000
0da71265
MN
3001static int decode_ref_pic_list_reordering(H264Context *h){
3002 MpegEncContext * const s = &h->s;
3003 int list;
3004
827c91bf
LLL
3005 print_short_term(h);
3006 print_long_term(h);
0da71265
MN
3007 if(h->slice_type==I_TYPE || h->slice_type==SI_TYPE) return 0; //FIXME move beofre func
3008
3009 for(list=0; list<2; list++){
3010 memcpy(h->ref_list[list], h->default_ref_list[list], sizeof(Picture)*h->ref_count[list]);
3011
3012 if(get_bits1(&s->gb)){
3013 int pred= h->curr_pic_num;
3014 int index;
3015
3016 for(index=0; ; index++){
3017 int reordering_of_pic_nums_idc= get_ue_golomb(&s->gb);
3018 int pic_id;
3019 int i;
3020
0bc42cad
LM
3021 if(reordering_of_pic_nums_idc==3)
3022 break;
0da71265
MN
3023
3024 if(index >= h->ref_count[list]){
9b879566 3025 av_log(h->s.avctx, AV_LOG_ERROR, "reference count overflow\n");
0da71265
MN
3026 return -1;
3027 }
3028
3029 if(reordering_of_pic_nums_idc<3){
3030 if(reordering_of_pic_nums_idc<2){
3031 const int abs_diff_pic_num= get_ue_golomb(&s->gb) + 1;
3032
3033 if(abs_diff_pic_num >= h->max_pic_num){
9b879566 3034 av_log(h->s.avctx, AV_LOG_ERROR, "abs_diff_pic_num overflow\n");
0da71265
MN
3035 return -1;
3036 }
3037
3038 if(reordering_of_pic_nums_idc == 0) pred-= abs_diff_pic_num;
3039 else pred+= abs_diff_pic_num;
3040 pred &= h->max_pic_num - 1;
3041
0d315f28
LLL
3042 for(i= h->ref_count[list]-1; i>=0; i--){
3043 if(h->ref_list[list][i].data[0] != NULL && h->ref_list[list][i].pic_id == pred && h->ref_list[list][i].long_ref==0) // ignore non existing pictures by testing data[0] pointer
0da71265
MN
3044 break;
3045 }
3046 }else{
3047 pic_id= get_ue_golomb(&s->gb); //long_term_pic_idx
3048
0d315f28
LLL
3049 for(i= h->ref_count[list]-1; i>=0; i--){
3050 if(h->ref_list[list][i].pic_id == pic_id && h->ref_list[list][i].long_ref==1) // no need to ignore non existing pictures as non existing pictures have long_ref==0
0da71265
MN
3051 break;
3052 }
3053 }
3054
0d315f28 3055 if (i < 0) {
9b879566 3056 av_log(h->s.avctx, AV_LOG_ERROR, "reference picture missing during reorder\n");
0da71265 3057 memset(&h->ref_list[list][index], 0, sizeof(Picture)); //FIXME
0d315f28 3058 } else if (i != index) /* this test is not necessary, it is only an optimisation to skip double copy of Picture structure in this case */ {
0da71265 3059 Picture tmp= h->ref_list[list][i];
0d315f28
LLL
3060 if (i < index) {
3061 i = h->ref_count[list];
3062 }
3063 for(; i > index; i--){
0da71265
MN
3064 h->ref_list[list][i]= h->ref_list[list][i-1];
3065 }
3066 h->ref_list[list][index]= tmp;
3067 }
0bc42cad 3068 }else{
9b879566 3069 av_log(h->s.avctx, AV_LOG_ERROR, "illegal reordering_of_pic_nums_idc\n");
0da71265
MN
3070 return -1;
3071 }
3072 }
3073 }
3074
3075 if(h->slice_type!=B_TYPE) break;
3076 }
5ad984c9
LM
3077
3078 if(h->slice_type==B_TYPE && !h->direct_spatial_mv_pred)
3079 direct_dist_scale_factor(h);
0da71265
MN
3080 return 0;
3081}
3082
3083static int pred_weight_table(H264Context *h){
3084 MpegEncContext * const s = &h->s;
3085 int list, i;
9f2d1b4f 3086 int luma_def, chroma_def;
0da71265 3087
9f2d1b4f
LM
3088 h->use_weight= 0;
3089 h->use_weight_chroma= 0;
0da71265
MN
3090 h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
3091 h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
9f2d1b4f
LM
3092 luma_def = 1<<h->luma_log2_weight_denom;
3093 chroma_def = 1<<h->chroma_log2_weight_denom;
0da71265
MN
3094
3095 for(list=0; list<2; list++){
3096 for(i=0; i<h->ref_count[list]; i++){
3097 int luma_weight_flag, chroma_weight_flag;
3098
3099 luma_weight_flag= get_bits1(&s->gb);
3100 if(luma_weight_flag){
3101 h->luma_weight[list][i]= get_se_golomb(&s->gb);
3102 h->luma_offset[list][i]= get_se_golomb(&s->gb);
9f2d1b4f
LM
3103 if( h->luma_weight[list][i] != luma_def
3104 || h->luma_offset[list][i] != 0)
3105 h->use_weight= 1;
3106 }else{
3107 h->luma_weight[list][i]= luma_def;
3108 h->luma_offset[list][i]= 0;
0da71265
MN
3109 }
3110
3111 chroma_weight_flag= get_bits1(&s->gb);
3112 if(chroma_weight_flag){
3113 int j;
3114 for(j=0; j<2; j++){
3115 h->chroma_weight[list][i][j]= get_se_golomb(&s->gb);
3116 h->chroma_offset[list][i][j]= get_se_golomb(&s->gb);
9f2d1b4f
LM
3117 if( h->chroma_weight[list][i][j] != chroma_def
3118 || h->chroma_offset[list][i][j] != 0)
3119 h->use_weight_chroma= 1;
3120 }
3121 }else{
3122 int j;
3123 for(j=0; j<2; j++){
3124 h->chroma_weight[list][i][j]= chroma_def;
3125 h->chroma_offset[list][i][j]= 0;
0da71265
MN
3126 }
3127 }
3128 }
3129 if(h->slice_type != B_TYPE) break;
3130 }
9f2d1b4f 3131 h->use_weight= h->use_weight || h->use_weight_chroma;
0da71265
MN
3132 return 0;
3133}
3134
9f2d1b4f
LM
3135static void implicit_weight_table(H264Context *h){
3136 MpegEncContext * const s = &h->s;
9f2d1b4f
LM
3137 int ref0, ref1;
3138 int cur_poc = s->current_picture_ptr->poc;
3139
3140 if( h->ref_count[0] == 1 && h->ref_count[1] == 1
3141 && h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){
3142 h->use_weight= 0;
3143 h->use_weight_chroma= 0;
3144 return;
3145 }
3146
3147 h->use_weight= 2;
3148 h->use_weight_chroma= 2;
3149 h->luma_log2_weight_denom= 5;
3150 h->chroma_log2_weight_denom= 5;
3151
3152 /* FIXME: MBAFF */
3153 for(ref0=0; ref0 < h->ref_count[0]; ref0++){
3154 int poc0 = h->ref_list[0][ref0].poc;
3155 for(ref1=0; ref1 < h->ref_count[1]; ref1++){
3156 int poc1 = h->ref_list[0][ref1].poc;
3157 int td = clip(poc1 - poc0, -128, 127);
3158 if(td){
3159 int tb = clip(cur_poc - poc0, -128, 127);
3160 int tx = (16384 + (ABS(td) >> 1)) / td;
3161 int dist_scale_factor = clip((tb*tx + 32) >> 6, -1024, 1023) >> 2;
3162 if(dist_scale_factor < -64 || dist_scale_factor > 128)
3163 h->implicit_weight[ref0][ref1] = 32;
3164 else
3165 h->implicit_weight[ref0][ref1] = 64 - dist_scale_factor;
3166 }else
3167 h->implicit_weight[ref0][ref1] = 32;
3168 }
3169 }
3170}
3171
0da71265 3172/**
5175b937 3173 * instantaneous decoder refresh.
0da71265
MN
3174 */
3175static void idr(H264Context *h){
a4dae92b
LM
3176 int i,j;
3177
3178#define CHECK_DELAY(pic) \
3179 for(j = 0; h->delayed_pic[j]; j++) \
3180 if(pic == h->delayed_pic[j]){ \
3181 pic->reference=1; \
3182 break; \
3183 }
0da71265 3184
dc032f33
LLL
3185 for(i=0; i<16; i++){
3186 if (h->long_ref[i] != NULL) {
3187 h->long_ref[i]->reference=0;
3188 CHECK_DELAY(h->long_ref[i]);
3189 h->long_ref[i]= NULL;
3190 }
0da71265
MN
3191 }
3192 h->long_ref_count=0;
3193
3194 for(i=0; i<h->short_ref_count; i++){
3195 h->short_ref[i]->reference=0;
a4dae92b 3196 CHECK_DELAY(h->short_ref[i]);
0da71265
MN
3197 h->short_ref[i]= NULL;
3198 }
3199 h->short_ref_count=0;
3200}
a4dae92b 3201#undef CHECK_DELAY
0da71265 3202
0da71265
MN
3203/**
3204 *
3205 * @return the removed picture or NULL if an error occures
3206 */
3207static Picture * remove_short(H264Context *h, int frame_num){
1924f3ce 3208 MpegEncContext * const s = &h->s;
0da71265
MN
3209 int i;
3210
1924f3ce 3211 if(s->avctx->debug&FF_DEBUG_MMCO)
9b879566 3212 av_log(h->s.avctx, AV_LOG_DEBUG, "remove short %d count %d\n", frame_num, h->short_ref_count);
1924f3ce 3213
0da71265
MN
3214 for(i=0; i<h->short_ref_count; i++){
3215 Picture *pic= h->short_ref[i];
1924f3ce 3216 if(s->avctx->debug&FF_DEBUG_MMCO)
9b879566 3217 av_log(h->s.avctx, AV_LOG_DEBUG, "%d %d %p\n", i, pic->frame_num, pic);
0da71265
MN
3218 if(pic->frame_num == frame_num){
3219 h->short_ref[i]= NULL;
3220 memmove(&h->short_ref[i], &h->short_ref[i+1], (h->short_ref_count - i - 1)*sizeof(Picture*));
3221 h->short_ref_count--;
3222 return pic;
3223 }
3224 }
3225 return NULL;
3226}
3227
3228/**
3229 *
3230 * @return the removed picture or NULL if an error occures
3231 */
3232static Picture * remove_long(H264Context *h, int i){
3233 Picture *pic;
3234
0da71265 3235 pic= h->long_ref[i];
0da71265 3236 h->long_ref[i]= NULL;
827c91bf 3237 if(pic) h->long_ref_count--;
0da71265
MN
3238
3239 return pic;
3240}
3241
3242/**
827c91bf
LLL
3243 * print short term list
3244 */
3245static void print_short_term(H264Context *h) {
3246 uint32_t i;
3247 if(h->s.avctx->debug&FF_DEBUG_MMCO) {
3248 av_log(h->s.avctx, AV_LOG_DEBUG, "short term list:\n");
3249 for(i=0; i<h->short_ref_count; i++){
3250 Picture *pic= h->short_ref[i];
3251 av_log(h->s.avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n", i, pic->frame_num, pic->poc, pic->data[0]);
3252 }
3253 }
3254}
3255
3256/**
3257 * print long term list
3258 */
3259static void print_long_term(H264Context *h) {
3260 uint32_t i;
3261 if(h->s.avctx->debug&FF_DEBUG_MMCO) {
3262 av_log(h->s.avctx, AV_LOG_DEBUG, "long term list:\n");
3263 for(i = 0; i < 16; i++){
3264 Picture *pic= h->long_ref[i];
3265 if (pic) {
3266 av_log(h->s.avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n", i, pic->frame_num, pic->poc, pic->data[0]);
3267 }
3268 }
3269 }
3270}
3271
3272/**
0da71265
MN
3273 * Executes the reference picture marking (memory management control operations).
3274 */
3275static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
3276 MpegEncContext * const s = &h->s;
827c91bf 3277 int i, j;
0da71265
MN
3278 int current_is_long=0;
3279 Picture *pic;
3280
3281 if((s->avctx->debug&FF_DEBUG_MMCO) && mmco_count==0)
9b879566 3282 av_log(h->s.avctx, AV_LOG_DEBUG, "no mmco here\n");
0da71265
MN
3283
3284 for(i=0; i<mmco_count; i++){
3285 if(s->avctx->debug&FF_DEBUG_MMCO)
9b879566 3286 av_log(h->s.avctx, AV_LOG_DEBUG, "mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_frame_num, h->mmco[i].long_index);
0da71265
MN
3287
3288 switch(mmco[i].opcode){
3289 case MMCO_SHORT2UNUSED:
3290 pic= remove_short(h, mmco[i].short_frame_num);
3291 if(pic==NULL) return -1;
3292 pic->reference= 0;
3293 break;
3294 case MMCO_SHORT2LONG:
3295 pic= remove_long(h, mmco[i].long_index);
3296 if(pic) pic->reference=0;
3297
3298 h->long_ref[ mmco[i].long_index ]= remove_short(h, mmco[i].short_frame_num);
3299 h->long_ref[ mmco[i].long_index ]->long_ref=1;
dc032f33 3300 h->long_ref_count++;
0da71265
MN
3301 break;
3302 case MMCO_LONG2UNUSED:
3303 pic= remove_long(h, mmco[i].long_index);
3304 if(pic==NULL) return -1;
3305 pic->reference= 0;
3306 break;
3307 case MMCO_LONG:
3308 pic= remove_long(h, mmco[i].long_index);
3309 if(pic) pic->reference=0;
3310
3311 h->long_ref[ mmco[i].long_index ]= s->current_picture_ptr;
3312 h->long_ref[ mmco[i].long_index ]->long_ref=1;
3313 h->long_ref_count++;
3314
3315 current_is_long=1;
3316 break;
3317 case MMCO_SET_MAX_LONG:
3318 assert(mmco[i].long_index <= 16);
827c91bf
LLL
3319 // just remove the long term which index is greater than new max
3320 for(j = mmco[i].long_index; j<16; j++){
3321 pic = remove_long(h, j);
3322 if (pic) pic->reference=0;
0da71265
MN
3323 }
3324 break;
3325 case MMCO_RESET:
3326 while(h->short_ref_count){
3327 pic= remove_short(h, h->short_ref[0]->frame_num);
3328 pic->reference=0;
3329 }
827c91bf
LLL
3330 for(j = 0; j < 16; j++) {
3331 pic= remove_long(h, j);
3332 if(pic) pic->reference=0;
0da71265
MN
3333 }
3334 break;
3335 default: assert(0);
3336 }
3337 }
3338
3339 if(!current_is_long){
3340 pic= remove_short(h, s->current_picture_ptr->frame_num);
3341 if(pic){
3342 pic->reference=0;
9b879566 3343 av_log(h->s.avctx, AV_LOG_ERROR, "illegal short term buffer state detected\n");
0da71265
MN
3344 }
3345
3346 if(h->short_ref_count)
1924f3ce
MN
3347 memmove(&h->short_ref[1], &h->short_ref[0], h->short_ref_count*sizeof(Picture*));
3348
3349 h->short_ref[0]= s->current_picture_ptr;
0da71265
MN
3350 h->short_ref[0]->long_ref=0;
3351 h->short_ref_count++;
3352 }
3353
827c91bf
LLL
3354 print_short_term(h);
3355 print_long_term(h);
0da71265
MN
3356 return 0;
3357}
3358
3359static int decode_ref_pic_marking(H264Context *h){
3360 MpegEncContext * const s = &h->s;
3361 int i;
3362
3363 if(h->nal_unit_type == NAL_IDR_SLICE){ //FIXME fields
3364 s->broken_link= get_bits1(&s->gb) -1;
3365 h->mmco[0].long_index= get_bits1(&s->gb) - 1; // current_long_term_idx
3366 if(h->mmco[0].long_index == -1)
3367 h->mmco_index= 0;
3368 else{
3369 h->mmco[0].opcode= MMCO_LONG;
3370 h->mmco_index= 1;
3371 }
3372 }else{
3373 if(get_bits1(&s->gb)){ // adaptive_ref_pic_marking_mode_flag
579448a0 3374 for(i= 0; i<MAX_MMCO_COUNT; i++) {
0da71265
MN
3375 MMCOOpcode opcode= get_ue_golomb(&s->gb);;
3376
3377 h->mmco[i].opcode= opcode;
3378 if(opcode==MMCO_SHORT2UNUSED || opcode==MMCO_SHORT2LONG){
3379 h->mmco[i].short_frame_num= (h->frame_num - get_ue_golomb(&s->gb) - 1) & ((1<<h->sps.log2_max_frame_num)-1); //FIXME fields
3380/* if(h->mmco[i].short_frame_num >= h->short_ref_count || h->short_ref[ h->mmco[i].short_frame_num ] == NULL){
3381 fprintf(stderr, "illegal short ref in memory management control operation %d\n", mmco);
3382 return -1;
3383 }*/
3384 }
3385 if(opcode==MMCO_SHORT2LONG || opcode==MMCO_LONG2UNUSED || opcode==MMCO_LONG || opcode==MMCO_SET_MAX_LONG){
3386 h->mmco[i].long_index= get_ue_golomb(&s->gb);
3387 if(/*h->mmco[i].long_index >= h->long_ref_count || h->long_ref[ h->mmco[i].long_index ] == NULL*/ h->mmco[i].long_index >= 16){
9b879566 3388 av_log(h->s.avctx, AV_LOG_ERROR, "illegal long ref in memory management control operation %d\n", opcode);
0da71265
MN
3389 return -1;
3390 }
3391 }
3392
3393 if(opcode > MMCO_LONG){
9b879566 3394 av_log(h->s.avctx, AV_LOG_ERROR, "illegal memory management control operation %d\n", opcode);
0da71265
MN
3395 return -1;
3396 }
792bb815
MN
3397 if(opcode == MMCO_END)
3398 break;
0da71265
MN
3399 }
3400 h->mmco_index= i;
3401 }else{
3402 assert(h->long_ref_count + h->short_ref_count <= h->sps.ref_frame_count);
3403
3404 if(h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count){ //FIXME fields
3405 h->mmco[0].opcode= MMCO_SHORT2UNUSED;
3406 h->mmco[0].short_frame_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num;
3407 h->mmco_index= 1;
3408 }else
3409 h->mmco_index= 0;
3410 }
3411 }
3412
3413 return 0;
3414}
3415
3416static int init_poc(H264Context *h){
3417 MpegEncContext * const s = &h->s;
3418 const int max_frame_num= 1<<h->sps.log2_max_frame_num;
3419 int field_poc[2];
3420
3421 if(h->nal_unit_type == NAL_IDR_SLICE){
3422 h->frame_num_offset= 0;
3423 }else{
3424 if(h->frame_num < h->prev_frame_num)
3425 h->frame_num_offset= h->prev_frame_num_offset + max_frame_num;
3426 else
3427 h->frame_num_offset= h->prev_frame_num_offset;
3428 }
3429
3430 if(h->sps.poc_type==0){
3431 const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb;
3432
3433 if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2)
3434 h->poc_msb = h->prev_poc_msb + max_poc_lsb;
3435 else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2)
3436 h->poc_msb = h->prev_poc_msb - max_poc_lsb;
3437 else
3438 h->poc_msb = h->prev_poc_msb;
3439//printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
3440 field_poc[0] =
3441 field_poc[1] = h->poc_msb + h->poc_lsb;
3442 if(s->picture_structure == PICT_FRAME)
3443 field_poc[1] += h->delta_poc_bottom;
3444 }else if(h->sps.poc_type==1){
3445 int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
3446 int i;
3447
3448 if(h->sps.poc_cycle_length != 0)
3449 abs_frame_num = h->frame_num_offset + h->frame_num;
3450 else
3451 abs_frame_num = 0;
3452
3453 if(h->nal_ref_idc==0 && abs_frame_num > 0)
3454 abs_frame_num--;
3455
3456 expected_delta_per_poc_cycle = 0;
3457 for(i=0; i < h->sps.poc_cycle_length; i++)
3458 expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
3459
3460 if(abs_frame_num > 0){
3461 int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;
3462 int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
3463
3464 expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
3465 for(i = 0; i <= frame_num_in_poc_cycle; i++)
3466 expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ];
3467 } else
3468 expectedpoc = 0;
3469
3470 if(h->nal_ref_idc == 0)
3471 expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
3472
3473 field_poc[0] = expectedpoc + h->delta_poc[0];
3474 field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
3475
3476 if(s->picture_structure == PICT_FRAME)
3477 field_poc[1] += h->delta_poc[1];
3478 }else{
3479 int poc;
3480 if(h->nal_unit_type == NAL_IDR_SLICE){
3481 poc= 0;
3482 }else{
3483 if(h->nal_ref_idc) poc= 2*(h->frame_num_offset + h->frame_num);
3484 else poc= 2*(h->frame_num_offset + h->frame_num) - 1;
3485 }
3486 field_poc[0]= poc;
3487 field_poc[1]= poc;
3488 }
3489
3490 if(s->picture_structure != PICT_BOTTOM_FIELD)
3491 s->current_picture_ptr->field_poc[0]= field_poc[0];
3492 if(s->picture_structure != PICT_TOP_FIELD)
3493 s->current_picture_ptr->field_poc[1]= field_poc[1];
3494 if(s->picture_structure == PICT_FRAME) // FIXME field pix?
3495 s->current_picture_ptr->poc= FFMIN(field_poc[0], field_poc[1]);
3496
3497 return 0;
3498}
3499
3500/**
3501 * decodes a slice header.
3502 * this will allso call MPV_common_init() and frame_start() as needed
3503 */
3504static int decode_slice_header(H264Context *h){
3505 MpegEncContext * const s = &h->s;
3506 int first_mb_in_slice, pps_id;
3507 int num_ref_idx_active_override_flag;
3508 static const uint8_t slice_type_map[5]= {P_TYPE, B_TYPE, I_TYPE, SP_TYPE, SI_TYPE};
0bf79634
LLL
3509 int slice_type;
3510 int default_ref_list_done = 0;
0da71265
MN
3511
3512 s->current_picture.reference= h->nal_ref_idc != 0;
3513
3514 first_mb_in_slice= get_ue_golomb(&s->gb);
3515
0bf79634
LLL
3516 slice_type= get_ue_golomb(&s->gb);
3517 if(slice_type > 9){
9b879566 3518 av_log(h->s.avctx, AV_LOG_ERROR, "slice type too large (%d) at %d %d\n", h->slice_type, s->mb_x, s->mb_y);
5175b937 3519 return -1;
0da71265 3520 }
0bf79634
LLL
3521 if(slice_type > 4){
3522 slice_type -= 5;
0da71265
MN
3523 h->slice_type_fixed=1;
3524 }else
3525 h->slice_type_fixed=0;
3526
0bf79634
LLL
3527 slice_type= slice_type_map[ slice_type ];
3528 if (slice_type == I_TYPE
3529 || (h->slice_num != 0 && slice_type == h->slice_type) ) {
3530 default_ref_list_done = 1;
3531 }
3532 h->slice_type= slice_type;
3533
0da71265
MN
3534 s->pict_type= h->slice_type; // to make a few old func happy, its wrong though
3535
3536 pps_id= get_ue_golomb(&s->gb);
3537 if(pps_id>255){
9b879566 3538 av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
0da71265
MN
3539 return -1;
3540 }
3541 h->pps= h->pps_buffer[pps_id];
8b92b792 3542 if(h->pps.slice_group_count == 0){
9b879566 3543 av_log(h->s.avctx, AV_LOG_ERROR, "non existing PPS referenced\n");
8b92b792
MN
3544 return -1;
3545 }
3546
0da71265 3547 h->sps= h->sps_buffer[ h->pps.sps_id ];
8b92b792 3548 if(h->sps.log2_max_frame_num == 0){
9b879566 3549 av_log(h->s.avctx, AV_LOG_ERROR, "non existing SPS referenced\n");
8b92b792
MN
3550 return -1;
3551 }
0da71265
MN
3552
3553 s->mb_width= h->sps.mb_width;
3554 s->mb_height= h->sps.mb_height;
0da71265 3555
650cec0c
LM
3556 h->b_stride= s->mb_width*4 + 1;
3557 h->b8_stride= s->mb_width*2 + 1;
0da71265 3558
5175b937
LLL
3559 s->resync_mb_x = s->mb_x = first_mb_in_slice % s->mb_width;
3560 s->resync_mb_y = s->mb_y = first_mb_in_slice / s->mb_width; //FIXME AFFW
0da71265 3561
a15e68de 3562 s->width = 16*s->mb_width - 2*(h->sps.crop_left + h->sps.crop_right );
0da71265 3563 if(h->sps.frame_mbs_only_flag)
a15e68de 3564 s->height= 16*s->mb_height - 2*(h->sps.crop_top + h->sps.crop_bottom);
0da71265 3565 else
a15e68de 3566 s->height= 16*s->mb_height - 4*(h->sps.crop_top + h->sps.crop_bottom); //FIXME recheck
0da71265 3567
0da71265 3568 if (s->context_initialized
5ff85f1d 3569 && ( s->width != s->avctx->width || s->height != s->avctx->height)) {
0da71265
MN
3570 free_tables(h);
3571 MPV_common_end(s);
3572 }
3573 if (!s->context_initialized) {
3574 if (MPV_common_init(s) < 0)
3575 return -1;
3576
3577 alloc_tables(h);
3578
3579 s->avctx->width = s->width;
3580 s->avctx->height = s->height;
5ff85f1d 3581 s->avctx->sample_aspect_ratio= h->sps.sar;
eed4ebd2
MN
3582 if(!s->avctx->sample_aspect_ratio.den)
3583 s->avctx->sample_aspect_ratio.den = 1;
ec587a50
MR
3584
3585 if(h->sps.timing_info_present_flag && h->sps.fixed_frame_rate_flag){
3586 s->avctx->frame_rate = h->sps.time_scale;
3587 s->avctx->frame_rate_base = h->sps.num_units_in_tick;
3588 }
0da71265
MN
3589 }
3590
5175b937 3591 if(h->slice_num == 0){
0da71265
MN
3592 frame_start(h);
3593 }
3594
1924f3ce 3595 s->current_picture_ptr->frame_num= //FIXME frame_num cleanup
0da71265
MN
3596 h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num);
3597
3598 if(h->sps.frame_mbs_only_flag){
3599 s->picture_structure= PICT_FRAME;
3600 }else{
3601 if(get_bits1(&s->gb)) //field_pic_flag
3602 s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
3603 else
3604 s->picture_structure= PICT_FRAME;
3605 }
3606
3607 if(s->picture_structure==PICT_FRAME){
3608 h->curr_pic_num= h->frame_num;
3609 h->max_pic_num= 1<< h->sps.log2_max_frame_num;
3610 }else{
3611 h->curr_pic_num= 2*h->frame_num;
3612 h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1);
3613 }
3614
3615 if(h->nal_unit_type == NAL_IDR_SLICE){
1df1df0b 3616 get_ue_golomb(&s->gb); /* idr_pic_id */
0da71265
MN
3617 }
3618
3619 if(h->sps.poc_type==0){
3620 h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb);
3621
3622 if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){
3623 h->delta_poc_bottom= get_se_golomb(&s->gb);
3624 }
3625 }
3626
3627 if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){
3628 h->delta_poc[0]= get_se_golomb(&s->gb);
3629
3630 if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME)
3631 h->delta_poc[1]= get_se_golomb(&s->gb);
3632 }
3633
3634 init_poc(h);
3635
3636 if(h->pps.redundant_pic_cnt_present){
3637 h->redundant_pic_count= get_ue_golomb(&s->gb);
3638 }
3639
3640 //set defaults, might be overriden a few line later
3641 h->ref_count[0]= h->pps.ref_count[0];
3642 h->ref_count[1]= h->pps.ref_count[1];
3643
3644 if(h->slice_type == P_TYPE || h->slice_type == SP_TYPE || h->slice_type == B_TYPE){
3645 if(h->slice_type == B_TYPE){
3646 h->direct_spatial_mv_pred= get_bits1(&s->gb);
3647 }
3648 num_ref_idx_active_override_flag= get_bits1(&s->gb);
3649
3650 if(num_ref_idx_active_override_flag){
3651 h->ref_count[0]= get_ue_golomb(&s->gb) + 1;
3652 if(h->slice_type==B_TYPE)
3653 h->ref_count[1]= get_ue_golomb(&s->gb) + 1;
3654
3655 if(h->ref_count[0] > 32 || h->ref_count[1] > 32){
9b879566 3656 av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
0da71265
MN
3657 return -1;
3658 }
3659 }
3660 }
3661
0bf79634 3662 if(!default_ref_list_done){
0da71265
MN
3663 fill_default_ref_list(h);
3664 }
3665
3666 decode_ref_pic_list_reordering(h);
3667
3668 if( (h->pps.weighted_pred && (h->slice_type == P_TYPE || h->slice_type == SP_TYPE ))
3669 || (h->pps.weighted_bipred_idc==1 && h->slice_type==B_TYPE ) )
3670 pred_weight_table(h);
9f2d1b4f
LM
3671 else if(h->pps.weighted_bipred_idc==2 && h->slice_type==B_TYPE)
3672 implicit_weight_table(h);
3673 else
3674 h->use_weight = 0;
0da71265
MN
3675
3676 if(s->current_picture.reference)
3677 decode_ref_pic_marking(h);
0da71265 3678
e5017ab8
LA
3679 if( h->slice_type != I_TYPE && h->slice_type != SI_TYPE && h->pps.cabac )
3680 h->cabac_init_idc = get_ue_golomb(&s->gb);
3681
3682 h->last_qscale_diff = 0;
3683 s->qscale = h->pps.init_qp + get_se_golomb(&s->gb);
3ebc7e04
MN
3684 if(s->qscale<0 || s->qscale>51){
3685 av_log(s->avctx, AV_LOG_ERROR, "QP %d out of range\n", s->qscale);
3686 return -1;
3687 }
579448a0 3688 h->chroma_qp = get_chroma_qp(h, s->qscale);
0da71265
MN
3689 //FIXME qscale / qp ... stuff
3690 if(h->slice_type == SP_TYPE){
1df1df0b 3691 get_bits1(&s->gb); /* sp_for_switch_flag */
0da71265
MN
3692 }
3693 if(h->slice_type==SP_TYPE || h->slice_type == SI_TYPE){
1df1df0b 3694 get_se_golomb(&s->gb); /* slice_qs_delta */
0da71265
MN
3695 }
3696
53c05b1e 3697 h->deblocking_filter = 1;
3ebc7e04
MN
3698 h->slice_alpha_c0_offset = 0;
3699 h->slice_beta_offset = 0;
0da71265 3700 if( h->pps.deblocking_filter_parameters_present ) {
53c0