exporting mbskip_table after it has been allocated
[libav.git] / libavcodec / mpegvideo.c
CommitLineData
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1/*
2 * The simplest mpeg encoder (well, it was the simplest!)
ff4ec49e 3 * Copyright (c) 2000,2001 Fabrice Bellard.
de6d9b64 4 *
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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.
de6d9b64 9 *
ff4ec49e 10 * This library is distributed in the hope that it will be useful,
de6d9b64 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
de6d9b64 14 *
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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
cf8039b2 18 *
9dbf1ddd 19 * 4MV & hq & b-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
de6d9b64 20 */
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21#include "avcodec.h"
22#include "dsputil.h"
23#include "mpegvideo.h"
24
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25#ifdef USE_FASTMEMCPY
26#include "fastmemcpy.h"
27#endif
28
21af69f7 29static void encode_picture(MpegEncContext *s, int picture_number);
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30static void dct_unquantize_mpeg1_c(MpegEncContext *s,
31 DCTELEM *block, int n, int qscale);
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32static void dct_unquantize_mpeg2_c(MpegEncContext *s,
33 DCTELEM *block, int n, int qscale);
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34static void dct_unquantize_h263_c(MpegEncContext *s,
35 DCTELEM *block, int n, int qscale);
3d9fccbf 36static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w);
d7e9533a 37static int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
3d9fccbf 38
d7e9533a 39int (*dct_quantize)(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow)= dct_quantize_c;
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40void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w)= draw_edges_c;
41
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42#define EDGE_WIDTH 16
43
44/* enable all paranoid tests for rounding, overflows, etc... */
45//#define PARANOID
46
47//#define DEBUG
48
101bea5f 49
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50/* for jpeg fast DCT */
51#define CONST_BITS 14
52
53static const unsigned short aanscales[64] = {
54 /* precomputed values scaled up by 14 bits */
55 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
56 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270,
57 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906,
58 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315,
59 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
60 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552,
61 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446,
62 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247
63};
64
65static UINT8 h263_chroma_roundtab[16] = {
66 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
67};
68
9c15096e 69static UINT16 default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
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70static UINT8 default_fcode_tab[MAX_MV*2+1];
71
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72extern UINT8 zigzag_end[64];
73
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74/* default motion estimation */
75int motion_estimation_method = ME_EPZS;
76
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77static void convert_matrix(int (*qmat)[64], uint16_t (*qmat16)[64], uint16_t (*qmat16_bias)[64],
78 const UINT16 *quant_matrix, int bias)
de6d9b64 79{
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80 int qscale;
81
82 for(qscale=1; qscale<32; qscale++){
83 int i;
03c94ede 84 if (av_fdct == fdct_ifast) {
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85 for(i=0;i<64;i++) {
86 const int j= block_permute_op(i);
87 /* 16 <= qscale * quant_matrix[i] <= 7905 */
88 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
89 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
90 /* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
91
92 qmat[qscale][j] = (int)((UINT64_C(1) << (QMAT_SHIFT + 11)) /
93 (aanscales[i] * qscale * quant_matrix[j]));
94 }
95 } else {
96 for(i=0;i<64;i++) {
97 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
98 So 16 <= qscale * quant_matrix[i] <= 7905
99 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
100 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
101 */
102 qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
103 qmat16[qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[block_permute_op(i)]);
104
105 if(qmat16[qscale][i]==0 || qmat16[qscale][i]==128*256) qmat16[qscale][i]=128*256-1;
106
107 qmat16_bias[qscale][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][i]);
108 }
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109 }
110 }
111}
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112// move into common.c perhaps
113#define CHECKED_ALLOCZ(p, size)\
114{\
115 p= av_mallocz(size);\
116 if(p==NULL){\
117 perror("malloc");\
118 goto fail;\
119 }\
120}
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121
122/* init common structure for both encoder and decoder */
123int MPV_common_init(MpegEncContext *s)
124{
125 int c_size, i;
126 UINT8 *pict;
127
3bf43d42 128 s->dct_unquantize_h263 = dct_unquantize_h263_c;
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129 s->dct_unquantize_mpeg1 = dct_unquantize_mpeg1_c;
130 s->dct_unquantize_mpeg2 = dct_unquantize_mpeg2_c;
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131
132#ifdef HAVE_MMX
133 MPV_common_init_mmx(s);
a9b3f630 134#endif
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135#ifdef ARCH_ALPHA
136 MPV_common_init_axp(s);
137#endif
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138 //setup default unquantizers (mpeg4 might change it later)
139 if(s->out_format == FMT_H263)
140 s->dct_unquantize = s->dct_unquantize_h263;
141 else
9dbf1ddd 142 s->dct_unquantize = s->dct_unquantize_mpeg1;
3bf43d42 143
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144 s->mb_width = (s->width + 15) / 16;
145 s->mb_height = (s->height + 15) / 16;
e03c341e 146 s->mb_num = s->mb_width * s->mb_height;
93a21abd 147 if(!(s->flags&CODEC_FLAG_DR1)){
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148 s->linesize = s->mb_width * 16 + 2 * EDGE_WIDTH;
149 s->uvlinesize = s->mb_width * 8 + EDGE_WIDTH;
de6d9b64 150
93a21abd 151 for(i=0;i<3;i++) {
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152 int w, h, shift, pict_start;
153
154 w = s->linesize;
155 h = s->mb_height * 16 + 2 * EDGE_WIDTH;
156 shift = (i == 0) ? 0 : 1;
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157 c_size = (s->linesize>>shift) * (h >> shift);
158 pict_start = (s->linesize>>shift) * (EDGE_WIDTH >> shift) + (EDGE_WIDTH >> shift);
de6d9b64 159
7f2fe444 160 CHECKED_ALLOCZ(pict, c_size)
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161 s->last_picture_base[i] = pict;
162 s->last_picture[i] = pict + pict_start;
b50eef3a 163 if(i>0) memset(s->last_picture_base[i], 128, c_size);
de6d9b64 164
7f2fe444 165 CHECKED_ALLOCZ(pict, c_size)
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166 s->next_picture_base[i] = pict;
167 s->next_picture[i] = pict + pict_start;
b50eef3a 168 if(i>0) memset(s->next_picture_base[i], 128, c_size);
9dbcbd92 169
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170 if (s->has_b_frames || s->codec_id==CODEC_ID_MPEG4) {
171 /* Note the MPEG4 stuff is here cuz of buggy encoders which dont set the low_delay flag but
172 do low-delay encoding, so we cant allways distinguish b-frame containing streams from low_delay streams */
7f2fe444 173 CHECKED_ALLOCZ(pict, c_size)
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174 s->aux_picture_base[i] = pict;
175 s->aux_picture[i] = pict + pict_start;
b50eef3a 176 if(i>0) memset(s->aux_picture_base[i], 128, c_size);
de6d9b64 177 }
93a21abd 178 }
0fd90455 179 s->ip_buffer_count= 2;
de6d9b64 180 }
37fbfd0a 181
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182 CHECKED_ALLOCZ(s->edge_emu_buffer, (s->width+32)*2*17);
183
37fbfd0a 184 if (s->encoding) {
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185 int j;
186 int mv_table_size= (s->mb_width+2)*(s->mb_height+2);
b4dbd87c 187
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188 CHECKED_ALLOCZ(s->mb_var , s->mb_num * sizeof(INT16))
189 CHECKED_ALLOCZ(s->mc_mb_var, s->mb_num * sizeof(INT16))
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190
191 /* Allocate MV tables */
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192 CHECKED_ALLOCZ(s->p_mv_table , mv_table_size * 2 * sizeof(INT16))
193 CHECKED_ALLOCZ(s->b_forw_mv_table , mv_table_size * 2 * sizeof(INT16))
194 CHECKED_ALLOCZ(s->b_back_mv_table , mv_table_size * 2 * sizeof(INT16))
195 CHECKED_ALLOCZ(s->b_bidir_forw_mv_table , mv_table_size * 2 * sizeof(INT16))
196 CHECKED_ALLOCZ(s->b_bidir_back_mv_table , mv_table_size * 2 * sizeof(INT16))
197 CHECKED_ALLOCZ(s->b_direct_forw_mv_table, mv_table_size * 2 * sizeof(INT16))
198 CHECKED_ALLOCZ(s->b_direct_back_mv_table, mv_table_size * 2 * sizeof(INT16))
199 CHECKED_ALLOCZ(s->b_direct_mv_table , mv_table_size * 2 * sizeof(INT16))
200
201 CHECKED_ALLOCZ(s->me_scratchpad, s->linesize*16*3*sizeof(uint8_t))
202
203 CHECKED_ALLOCZ(s->me_map , ME_MAP_SIZE*sizeof(uint32_t))
204 CHECKED_ALLOCZ(s->me_score_map, ME_MAP_SIZE*sizeof(uint16_t))
91029be7 205
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206 if(s->max_b_frames){
207 for(j=0; j<REORDER_BUFFER_SIZE; j++){
208 int i;
209 for(i=0;i<3;i++) {
210 int w, h, shift;
211
212 w = s->linesize;
213 h = s->mb_height * 16;
214 shift = (i == 0) ? 0 : 1;
215 c_size = (w >> shift) * (h >> shift);
216
7f2fe444 217 CHECKED_ALLOCZ(pict, c_size);
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218 s->picture_buffer[j][i] = pict;
219 }
220 }
221 }
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222
223 if(s->codec_id==CODEC_ID_MPEG4){
224 CHECKED_ALLOCZ(s->tex_pb_buffer, PB_BUFFER_SIZE);
225 CHECKED_ALLOCZ( s->pb2_buffer, PB_BUFFER_SIZE);
226 }
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227 }
228
174489bd 229 if (s->out_format == FMT_H263 || s->encoding) {
de6d9b64 230 int size;
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231 /* Allocate MB type table */
232 CHECKED_ALLOCZ(s->mb_type , s->mb_num * sizeof(UINT8))
233
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234 /* MV prediction */
235 size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
7f2fe444 236 CHECKED_ALLOCZ(s->motion_val, size * 2 * sizeof(INT16));
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237 }
238
d140623f 239 if (s->h263_pred || s->h263_plus) {
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240 int y_size, c_size, i, size;
241
242 /* dc values */
243
244 y_size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
245 c_size = (s->mb_width + 2) * (s->mb_height + 2);
246 size = y_size + 2 * c_size;
7f2fe444 247 CHECKED_ALLOCZ(s->dc_val[0], size * sizeof(INT16));
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248 s->dc_val[1] = s->dc_val[0] + y_size;
249 s->dc_val[2] = s->dc_val[1] + c_size;
250 for(i=0;i<size;i++)
251 s->dc_val[0][i] = 1024;
252
253 /* ac values */
7f2fe444 254 CHECKED_ALLOCZ(s->ac_val[0], size * sizeof(INT16) * 16);
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255 s->ac_val[1] = s->ac_val[0] + y_size;
256 s->ac_val[2] = s->ac_val[1] + c_size;
257
258 /* cbp values */
7f2fe444 259 CHECKED_ALLOCZ(s->coded_block, y_size);
bff6ecaa
MN
260
261 /* which mb is a intra block */
7f2fe444 262 CHECKED_ALLOCZ(s->mbintra_table, s->mb_num);
e03c341e 263 memset(s->mbintra_table, 1, s->mb_num);
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264
265 /* divx501 bitstream reorder buffer */
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266 CHECKED_ALLOCZ(s->bitstream_buffer, BITSTREAM_BUFFER_SIZE);
267
268 /* cbp, ac_pred, pred_dir */
269 CHECKED_ALLOCZ(s->cbp_table , s->mb_num * sizeof(UINT8))
270 CHECKED_ALLOCZ(s->pred_dir_table, s->mb_num * sizeof(UINT8))
271
272 CHECKED_ALLOCZ(s->qscale_table , s->mb_num * sizeof(UINT8))
5b3438c6 273 }
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274 /* default structure is frame */
275 s->picture_structure = PICT_FRAME;
93a21abd 276
3bb4e23a 277 /* init macroblock skip table */
7f2fe444 278 CHECKED_ALLOCZ(s->mbskip_table, s->mb_num);
ba6802de 279
91029be7 280 s->block= s->blocks[0];
3bb4e23a 281
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282 s->context_initialized = 1;
283 return 0;
284 fail:
8257bf05 285 MPV_common_end(s);
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286 return -1;
287}
288
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289
290//extern int sads;
291
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292/* init common structure for both encoder and decoder */
293void MPV_common_end(MpegEncContext *s)
294{
295 int i;
296
6000abfa
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297 av_freep(&s->mb_type);
298 av_freep(&s->mb_var);
7f2fe444 299 av_freep(&s->mc_mb_var);
6000abfa 300 av_freep(&s->p_mv_table);
6000abfa
FB
301 av_freep(&s->b_forw_mv_table);
302 av_freep(&s->b_back_mv_table);
303 av_freep(&s->b_bidir_forw_mv_table);
304 av_freep(&s->b_bidir_back_mv_table);
305 av_freep(&s->b_direct_forw_mv_table);
306 av_freep(&s->b_direct_back_mv_table);
307 av_freep(&s->b_direct_mv_table);
308 av_freep(&s->motion_val);
309 av_freep(&s->dc_val[0]);
310 av_freep(&s->ac_val[0]);
311 av_freep(&s->coded_block);
312 av_freep(&s->mbintra_table);
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313 av_freep(&s->cbp_table);
314 av_freep(&s->pred_dir_table);
315 av_freep(&s->qscale_table);
6000abfa 316 av_freep(&s->me_scratchpad);
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317 av_freep(&s->me_map);
318 av_freep(&s->me_score_map);
319
6000abfa
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320 av_freep(&s->mbskip_table);
321 av_freep(&s->bitstream_buffer);
7f2fe444
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322 av_freep(&s->tex_pb_buffer);
323 av_freep(&s->pb2_buffer);
93a21abd
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324 av_freep(&s->edge_emu_buffer);
325
de6d9b64 326 for(i=0;i<3;i++) {
9dbcbd92 327 int j;
93a21abd
MN
328 if(!(s->flags&CODEC_FLAG_DR1)){
329 av_freep(&s->last_picture_base[i]);
330 av_freep(&s->next_picture_base[i]);
331 av_freep(&s->aux_picture_base[i]);
332 }
333 s->last_picture_base[i]=
334 s->next_picture_base[i]=
335 s->aux_picture_base [i] = NULL;
336 s->last_picture[i]=
337 s->next_picture[i]=
338 s->aux_picture [i] = NULL;
339
9dbcbd92 340 for(j=0; j<REORDER_BUFFER_SIZE; j++){
6000abfa 341 av_freep(&s->picture_buffer[j][i]);
9dbcbd92 342 }
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FB
343 }
344 s->context_initialized = 0;
345}
346
347/* init video encoder */
348int MPV_encode_init(AVCodecContext *avctx)
349{
350 MpegEncContext *s = avctx->priv_data;
519c2b6d 351 int i;
de6d9b64 352
bc657ac3
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353 avctx->pix_fmt = PIX_FMT_YUV420P;
354
de6d9b64 355 s->bit_rate = avctx->bit_rate;
9cdd6a24 356 s->bit_rate_tolerance = avctx->bit_rate_tolerance;
de6d9b64
FB
357 s->frame_rate = avctx->frame_rate;
358 s->width = avctx->width;
359 s->height = avctx->height;
7f2fe444 360 if(avctx->gop_size > 600){
333547be 361 fprintf(stderr, "Warning keyframe interval too large! reducing it ...\n");
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MN
362 avctx->gop_size=600;
363 }
de6d9b64 364 s->gop_size = avctx->gop_size;
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365 s->rtp_mode = avctx->rtp_mode;
366 s->rtp_payload_size = avctx->rtp_payload_size;
81401c1f
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367 if (avctx->rtp_callback)
368 s->rtp_callback = avctx->rtp_callback;
9cdd6a24
MN
369 s->qmin= avctx->qmin;
370 s->qmax= avctx->qmax;
371 s->max_qdiff= avctx->max_qdiff;
372 s->qcompress= avctx->qcompress;
373 s->qblur= avctx->qblur;
8b4c7dbc 374 s->b_quant_factor= avctx->b_quant_factor;
7f2fe444 375 s->b_quant_offset= avctx->b_quant_offset;
477c35a9 376 s->avctx = avctx;
11ce8834 377 s->aspect_ratio_info= avctx->aspect_ratio_info;
ba6802de 378 s->flags= avctx->flags;
9dbcbd92 379 s->max_b_frames= avctx->max_b_frames;
8b4c7dbc
MN
380 s->rc_strategy= avctx->rc_strategy;
381 s->b_frame_strategy= avctx->b_frame_strategy;
d7e9533a 382 s->codec_id= avctx->codec->id;
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MN
383 s->luma_elim_threshold = avctx->luma_elim_threshold;
384 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
385 s->strict_std_compliance= avctx->strict_std_compliance;
386 s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
d7e9533a 387
de6d9b64
FB
388 if (s->gop_size <= 1) {
389 s->intra_only = 1;
390 s->gop_size = 12;
391 } else {
392 s->intra_only = 0;
393 }
e4986da9
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394
395 /* ME algorithm */
101bea5f
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396 if (avctx->me_method == 0)
397 /* For compatibility */
398 s->me_method = motion_estimation_method;
399 else
400 s->me_method = avctx->me_method;
401
e4986da9 402 /* Fixed QSCALE */
de6d9b64 403 s->fixed_qscale = (avctx->flags & CODEC_FLAG_QSCALE);
37fbfd0a 404
de6d9b64
FB
405 switch(avctx->codec->id) {
406 case CODEC_ID_MPEG1VIDEO:
407 s->out_format = FMT_MPEG1;
1ff662cc 408 avctx->delay=0; //FIXME not sure, should check the spec
de6d9b64
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409 break;
410 case CODEC_ID_MJPEG:
411 s->out_format = FMT_MJPEG;
412 s->intra_only = 1; /* force intra only for jpeg */
37fbfd0a 413 s->mjpeg_write_tables = 1; /* write all tables */
a69b930c 414 s->mjpeg_data_only_frames = 0; /* write all the needed headers */
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415 s->mjpeg_vsample[0] = 2; /* set up default sampling factors */
416 s->mjpeg_vsample[1] = 1; /* the only currently supported values */
417 s->mjpeg_vsample[2] = 1;
a69b930c 418 s->mjpeg_hsample[0] = 2;
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419 s->mjpeg_hsample[1] = 1;
420 s->mjpeg_hsample[2] = 1;
de6d9b64
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421 if (mjpeg_init(s) < 0)
422 return -1;
1ff662cc 423 avctx->delay=0;
de6d9b64
FB
424 break;
425 case CODEC_ID_H263:
37fbfd0a
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426 if (h263_get_picture_format(s->width, s->height) == 7) {
427 printf("Input picture size isn't suitable for h263 codec! try h263+\n");
de6d9b64 428 return -1;
37fbfd0a 429 }
de6d9b64 430 s->out_format = FMT_H263;
1ff662cc 431 avctx->delay=0;
de6d9b64
FB
432 break;
433 case CODEC_ID_H263P:
434 s->out_format = FMT_H263;
644d98a4
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435 s->rtp_mode = 1;
436 s->rtp_payload_size = 1200;
de6d9b64 437 s->h263_plus = 1;
6dbd39fe 438 s->unrestricted_mv = 1;
ef5b1b5a 439 s->h263_aic = 1;
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440
441 /* These are just to be sure */
442 s->umvplus = 0;
443 s->umvplus_dec = 0;
1ff662cc 444 avctx->delay=0;
de6d9b64
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445 break;
446 case CODEC_ID_RV10:
447 s->out_format = FMT_H263;
448 s->h263_rv10 = 1;
1ff662cc 449 avctx->delay=0;
de6d9b64 450 break;
58f26ba9 451 case CODEC_ID_MPEG4:
de6d9b64
FB
452 s->out_format = FMT_H263;
453 s->h263_pred = 1;
454 s->unrestricted_mv = 1;
9dbcbd92 455 s->has_b_frames= s->max_b_frames ? 1 : 0;
1ff662cc
MN
456 s->low_delay=0;
457 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
de6d9b64 458 break;
84afee34 459 case CODEC_ID_MSMPEG4V1:
de6d9b64
FB
460 s->out_format = FMT_H263;
461 s->h263_msmpeg4 = 1;
462 s->h263_pred = 1;
463 s->unrestricted_mv = 1;
84afee34 464 s->msmpeg4_version= 1;
1ff662cc 465 avctx->delay=0;
84afee34
MN
466 break;
467 case CODEC_ID_MSMPEG4V2:
468 s->out_format = FMT_H263;
469 s->h263_msmpeg4 = 1;
470 s->h263_pred = 1;
471 s->unrestricted_mv = 1;
472 s->msmpeg4_version= 2;
1ff662cc 473 avctx->delay=0;
84afee34
MN
474 break;
475 case CODEC_ID_MSMPEG4V3:
476 s->out_format = FMT_H263;
477 s->h263_msmpeg4 = 1;
478 s->h263_pred = 1;
479 s->unrestricted_mv = 1;
480 s->msmpeg4_version= 3;
1ff662cc 481 avctx->delay=0;
de6d9b64 482 break;
f5957f3f
MN
483 case CODEC_ID_WMV1:
484 s->out_format = FMT_H263;
485 s->h263_msmpeg4 = 1;
486 s->h263_pred = 1;
487 s->unrestricted_mv = 1;
488 s->msmpeg4_version= 4;
489 avctx->delay=0;
490 break;
491 case CODEC_ID_WMV2:
492 s->out_format = FMT_H263;
493 s->h263_msmpeg4 = 1;
494 s->h263_pred = 1;
495 s->unrestricted_mv = 1;
496 s->msmpeg4_version= 5;
497 avctx->delay=0;
498 break;
de6d9b64
FB
499 default:
500 return -1;
501 }
cf8039b2 502
45870f57
MN
503 { /* set up some save defaults, some codecs might override them later */
504 static int done=0;
505 if(!done){
506 int i;
507 done=1;
9c15096e 508 memset(default_mv_penalty, 0, sizeof(UINT16)*(MAX_FCODE+1)*(2*MAX_MV+1));
45870f57
MN
509 memset(default_fcode_tab , 0, sizeof(UINT8)*(2*MAX_MV+1));
510
511 for(i=-16; i<16; i++){
512 default_fcode_tab[i + MAX_MV]= 1;
513 }
514 }
515 }
516 s->mv_penalty= default_mv_penalty;
517 s->fcode_tab= default_fcode_tab;
a406617f
MN
518 s->y_dc_scale_table=
519 s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
520
de6d9b64 521 if (s->out_format == FMT_H263)
45870f57 522 h263_encode_init(s);
11ce8834 523 else if (s->out_format == FMT_MPEG1)
f5957f3f
MN
524 ff_mpeg1_encode_init(s);
525 if(s->msmpeg4_version)
526 ff_msmpeg4_encode_init(s);
de6d9b64 527
9d2a0355 528 /* dont use mv_penalty table for crap MV as it would be confused */
9dbcbd92 529 if (s->me_method < ME_EPZS) s->mv_penalty = default_mv_penalty;
9d2a0355 530
3bb4e23a
FB
531 s->encoding = 1;
532
de6d9b64
FB
533 /* init */
534 if (MPV_common_init(s) < 0)
535 return -1;
536
519c2b6d
FB
537 /* init default q matrix */
538 for(i=0;i<64;i++) {
d7e9533a 539 if(s->out_format == FMT_H263)
adc09b2e 540 s->intra_matrix[i] = ff_mpeg1_default_non_intra_matrix[i];
d7e9533a 541 else
adc09b2e 542 s->intra_matrix[i] = ff_mpeg1_default_intra_matrix[i];
d7e9533a 543
adc09b2e 544 s->inter_matrix[i] = ff_mpeg1_default_non_intra_matrix[i];
d7e9533a
MN
545 }
546
547 /* precompute matrix */
ef5b1b5a 548 /* for mjpeg, we do include qscale in the matrix */
d7e9533a
MN
549 if (s->out_format != FMT_MJPEG) {
550 convert_matrix(s->q_intra_matrix, s->q_intra_matrix16, s->q_intra_matrix16_bias,
551 s->intra_matrix, s->intra_quant_bias);
552 convert_matrix(s->q_inter_matrix, s->q_inter_matrix16, s->q_inter_matrix16_bias,
553 s->inter_matrix, s->inter_quant_bias);
519c2b6d
FB
554 }
555
8b4c7dbc
MN
556 if(ff_rate_control_init(s) < 0)
557 return -1;
de6d9b64
FB
558
559 s->picture_number = 0;
45870f57 560 s->picture_in_gop_number = 0;
de6d9b64
FB
561 s->fake_picture_number = 0;
562 /* motion detector init */
563 s->f_code = 1;
9dbcbd92 564 s->b_code = 1;
de6d9b64
FB
565
566 return 0;
567}
568
569int MPV_encode_end(AVCodecContext *avctx)
570{
571 MpegEncContext *s = avctx->priv_data;
572
573#ifdef STATS
574 print_stats();
575#endif
8b4c7dbc
MN
576
577 ff_rate_control_uninit(s);
578
de6d9b64
FB
579 MPV_common_end(s);
580 if (s->out_format == FMT_MJPEG)
581 mjpeg_close(s);
37fbfd0a 582
de6d9b64
FB
583 return 0;
584}
585
586/* draw the edges of width 'w' of an image of size width, height */
3d9fccbf 587static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w)
de6d9b64
FB
588{
589 UINT8 *ptr, *last_line;
590 int i;
591
592 last_line = buf + (height - 1) * wrap;
593 for(i=0;i<w;i++) {
594 /* top and bottom */
595 memcpy(buf - (i + 1) * wrap, buf, width);
596 memcpy(last_line + (i + 1) * wrap, last_line, width);
597 }
598 /* left and right */
599 ptr = buf;
600 for(i=0;i<height;i++) {
601 memset(ptr - w, ptr[0], w);
602 memset(ptr + width, ptr[width-1], w);
603 ptr += wrap;
604 }
605 /* corners */
606 for(i=0;i<w;i++) {
607 memset(buf - (i + 1) * wrap - w, buf[0], w); /* top left */
608 memset(buf - (i + 1) * wrap + width, buf[width-1], w); /* top right */
609 memset(last_line + (i + 1) * wrap - w, last_line[0], w); /* top left */
610 memset(last_line + (i + 1) * wrap + width, last_line[width-1], w); /* top right */
611 }
612}
613
de6d9b64 614/* generic function for encode/decode called before a frame is coded/decoded */
93a21abd 615void MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
de6d9b64
FB
616{
617 int i;
618 UINT8 *tmp;
619
425dddb7 620 s->mb_skiped = 0;
7f2fe444 621 s->decoding_error=0;
fe072fb4 622 avctx->mbskip_table= s->mbskip_table;
7f2fe444 623
93a21abd
MN
624 if(avctx->flags&CODEC_FLAG_DR1){
625 int i;
626 avctx->get_buffer_callback(avctx, s->width, s->height, s->pict_type);
627
0fd90455
MN
628 s->linesize = avctx->dr_stride;
629 s->uvlinesize= avctx->dr_uvstride;
630 s->ip_buffer_count= avctx->dr_ip_buffer_count;
93a21abd 631 }
fe072fb4 632 avctx->dr_ip_buffer_count= s->ip_buffer_count;
93a21abd 633
de6d9b64
FB
634 if (s->pict_type == B_TYPE) {
635 for(i=0;i<3;i++) {
93a21abd
MN
636 if(avctx->flags&CODEC_FLAG_DR1)
637 s->aux_picture[i]= avctx->dr_buffer[i];
638
de6d9b64
FB
639 s->current_picture[i] = s->aux_picture[i];
640 }
641 } else {
642 for(i=0;i<3;i++) {
643 /* swap next and last */
93a21abd
MN
644 if(avctx->flags&CODEC_FLAG_DR1)
645 tmp= avctx->dr_buffer[i];
646 else
647 tmp = s->last_picture[i];
648
de6d9b64
FB
649 s->last_picture[i] = s->next_picture[i];
650 s->next_picture[i] = tmp;
651 s->current_picture[i] = tmp;
93a21abd
MN
652
653 s->last_dr_opaque= s->next_dr_opaque;
654 s->next_dr_opaque= avctx->dr_opaque_frame;
655
760acb18 656 if(s->has_b_frames && s->last_dr_opaque && s->codec_id!=CODEC_ID_SVQ1)
93a21abd
MN
657 avctx->dr_opaque_frame= s->last_dr_opaque;
658 else
659 avctx->dr_opaque_frame= s->next_dr_opaque;
de6d9b64
FB
660 }
661 }
662}
21af69f7 663
de6d9b64
FB
664/* generic function for encode/decode called after a frame has been coded/decoded */
665void MPV_frame_end(MpegEncContext *s)
666{
7f2fe444
MN
667// if((s->picture_number%100)==0 && s->encoding) printf("sads:%d //\n", sads);
668
de6d9b64 669 /* draw edge for correct motion prediction if outside */
93a21abd 670 if (s->pict_type != B_TYPE && !s->intra_only && !(s->flags&CODEC_FLAG_EMU_EDGE)) {
2a052693 671 if(s->avctx==NULL || s->avctx->codec->id!=CODEC_ID_MPEG4 || s->divx_version>=500){
393fe8dd 672 draw_edges(s->current_picture[0], s->linesize, s->mb_width*16, s->mb_height*16, EDGE_WIDTH);
0fd90455
MN
673 draw_edges(s->current_picture[1], s->uvlinesize, s->mb_width*8, s->mb_height*8, EDGE_WIDTH/2);
674 draw_edges(s->current_picture[2], s->uvlinesize, s->mb_width*8, s->mb_height*8, EDGE_WIDTH/2);
ef093645 675 }else{
1699d376 676 /* mpeg4? / opendivx / xvid */
de6d9b64 677 draw_edges(s->current_picture[0], s->linesize, s->width, s->height, EDGE_WIDTH);
0fd90455
MN
678 draw_edges(s->current_picture[1], s->uvlinesize, s->width/2, s->height/2, EDGE_WIDTH/2);
679 draw_edges(s->current_picture[2], s->uvlinesize, s->width/2, s->height/2, EDGE_WIDTH/2);
ef093645 680 }
de6d9b64 681 }
5975626d 682 emms_c();
8b4c7dbc
MN
683
684 if(s->pict_type!=B_TYPE){
685 s->last_non_b_pict_type= s->pict_type;
686 s->last_non_b_qscale= s->qscale;
7f2fe444 687 s->last_non_b_mc_mb_var= s->mc_mb_var_sum;
1c2a8c7f
MN
688 s->num_available_buffers++;
689 if(s->num_available_buffers>2) s->num_available_buffers= 2;
8b4c7dbc 690 }
de6d9b64
FB
691}
692
9dbcbd92
MN
693/* reorder input for encoding */
694void reorder_input(MpegEncContext *s, AVPicture *pict)
695{
696 int i, j, index;
697
698 if(s->max_b_frames > FF_MAX_B_FRAMES) s->max_b_frames= FF_MAX_B_FRAMES;
699
700// delay= s->max_b_frames+1; (or 0 if no b frames cuz decoder diff)
701
702 for(j=0; j<REORDER_BUFFER_SIZE-1; j++){
703 s->coded_order[j]= s->coded_order[j+1];
704 }
705 s->coded_order[j].picture[0]= s->coded_order[j].picture[1]= s->coded_order[j].picture[2]= NULL; //catch uninitalized buffers
d697b89b 706 s->coded_order[j].pict_type=0;
9dbcbd92
MN
707
708 switch(s->input_pict_type){
709 default:
710 case I_TYPE:
711 case S_TYPE:
712 case P_TYPE:
713 index= s->max_b_frames - s->b_frames_since_non_b;
714 s->b_frames_since_non_b=0;
715 break;
716 case B_TYPE:
717 index= s->max_b_frames + 1;
718 s->b_frames_since_non_b++;
719 break;
720 }
721//printf("index:%d type:%d strides: %d %d\n", index, s->input_pict_type, pict->linesize[0], s->linesize);
722 if( (index==0 || (s->flags&CODEC_FLAG_INPUT_PRESERVED))
723 && pict->linesize[0] == s->linesize
0fd90455
MN
724 && pict->linesize[1] == s->uvlinesize
725 && pict->linesize[2] == s->uvlinesize){
9dbcbd92
MN
726//printf("ptr\n");
727 for(i=0; i<3; i++){
728 s->coded_order[index].picture[i]= pict->data[i];
729 }
730 }else{
731//printf("copy\n");
732 for(i=0; i<3; i++){
733 uint8_t *src = pict->data[i];
734 uint8_t *dest;
735 int src_wrap = pict->linesize[i];
736 int dest_wrap = s->linesize;
737 int w = s->width;
738 int h = s->height;
739
740 if(index==0) dest= s->last_picture[i]+16; //is current_picture indeed but the switch hapens after reordering
741 else dest= s->picture_buffer[s->picture_buffer_index][i];
742
743 if (i >= 1) {
744 dest_wrap >>= 1;
745 w >>= 1;
746 h >>= 1;
747 }
748
749 s->coded_order[index].picture[i]= dest;
750 for(j=0;j<h;j++) {
751 memcpy(dest, src, w);
752 dest += dest_wrap;
753 src += src_wrap;
754 }
755 }
756 if(index!=0){
757 s->picture_buffer_index++;
758 if(s->picture_buffer_index >= REORDER_BUFFER_SIZE-1) s->picture_buffer_index=0;
759 }
760 }
761 s->coded_order[index].pict_type = s->input_pict_type;
762 s->coded_order[index].qscale = s->input_qscale;
763 s->coded_order[index].force_type= s->force_input_type;
764 s->coded_order[index].picture_in_gop_number= s->input_picture_in_gop_number;
765 s->coded_order[index].picture_number= s->input_picture_number;
766
767 for(i=0; i<3; i++){
768 s->new_picture[i]= s->coded_order[0].picture[i];
769 }
770}
771
de6d9b64
FB
772int MPV_encode_picture(AVCodecContext *avctx,
773 unsigned char *buf, int buf_size, void *data)
774{
775 MpegEncContext *s = avctx->priv_data;
776 AVPicture *pict = data;
de6d9b64 777
9dbcbd92 778 s->input_qscale = avctx->quality;
de6d9b64
FB
779
780 init_put_bits(&s->pb, buf, buf_size, NULL, NULL);
781
8b4c7dbc
MN
782 if(avctx->flags&CODEC_FLAG_TYPE){
783 s->input_pict_type=
784 s->force_input_type= avctx->key_frame ? I_TYPE : P_TYPE;
785 }else if(s->flags&CODEC_FLAG_PASS2){
786 s->input_pict_type=
787 s->force_input_type= s->rc_context.entry[s->input_picture_number].new_pict_type;
788 }else{
789 s->force_input_type=0;
790 if (!s->intra_only) {
791 /* first picture of GOP is intra */
792 if (s->input_picture_in_gop_number % s->gop_size==0){
793 s->input_pict_type = I_TYPE;
794 }else if(s->max_b_frames==0){
9dbcbd92 795 s->input_pict_type = P_TYPE;
8b4c7dbc
MN
796 }else{
797 if(s->b_frames_since_non_b < s->max_b_frames) //FIXME more IQ
798 s->input_pict_type = B_TYPE;
799 else
800 s->input_pict_type = P_TYPE;
801 }
802 } else {
803 s->input_pict_type = I_TYPE;
9dbcbd92 804 }
de6d9b64 805 }
de6d9b64 806
8b4c7dbc
MN
807 if(s->input_pict_type==I_TYPE)
808 s->input_picture_in_gop_number=0;
809
9dbcbd92
MN
810 reorder_input(s, pict);
811
812 /* output? */
813 if(s->coded_order[0].picture[0]){
814
815 s->pict_type= s->coded_order[0].pict_type;
816 if (s->fixed_qscale) /* the ratecontrol needs the last qscale so we dont touch it for CBR */
817 s->qscale= s->coded_order[0].qscale;
818 s->force_type= s->coded_order[0].force_type;
819 s->picture_in_gop_number= s->coded_order[0].picture_in_gop_number;
820 s->picture_number= s->coded_order[0].picture_number;
821
93a21abd 822 MPV_frame_start(s, avctx);
9dbcbd92
MN
823
824 encode_picture(s, s->picture_number);
9cd3766f
J
825 avctx->key_frame = (s->pict_type == I_TYPE);
826 avctx->pict_type = s->pict_type;
827 avctx->real_pict_num = s->picture_number;
9dbcbd92
MN
828 avctx->header_bits = s->header_bits;
829 avctx->mv_bits = s->mv_bits;
830 avctx->misc_bits = s->misc_bits;
831 avctx->i_tex_bits = s->i_tex_bits;
832 avctx->p_tex_bits = s->p_tex_bits;
833 avctx->i_count = s->i_count;
834 avctx->p_count = s->p_count;
835 avctx->skip_count = s->skip_count;
836
837 MPV_frame_end(s);
838
839 if (s->out_format == FMT_MJPEG)
840 mjpeg_picture_trailer(s);
841
842 avctx->quality = s->qscale;
8b4c7dbc
MN
843
844 if(s->flags&CODEC_FLAG_PASS1)
845 ff_write_pass1_stats(s);
7f2fe444 846
de6d9b64
FB
847 }
848
9dbcbd92
MN
849 s->input_picture_number++;
850 s->input_picture_in_gop_number++;
de6d9b64
FB
851
852 flush_put_bits(&s->pb);
9cdd6a24 853 s->frame_bits = (pbBufPtr(&s->pb) - s->pb.buf) * 8;
8b4c7dbc
MN
854 if(s->pict_type==B_TYPE) s->pb_frame_bits+= s->frame_bits;
855 else s->pb_frame_bits= s->frame_bits;
856
9cdd6a24 857 s->total_bits += s->frame_bits;
098eefe1
MN
858 avctx->frame_bits = s->frame_bits;
859//printf("fcode: %d, type: %d, head: %d, mv: %d, misc: %d, frame: %d, itex: %d, ptex: %d\n",
860//s->f_code, avctx->key_frame, s->header_bits, s->mv_bits, s->misc_bits, s->frame_bits, s->i_tex_bits, s->p_tex_bits);
17592475 861
43f1708f
J
862 if (avctx->get_psnr) {
863 /* At this point pict->data should have the original frame */
864 /* an s->current_picture should have the coded/decoded frame */
865 get_psnr(pict->data, s->current_picture,
866 pict->linesize, s->linesize, avctx);
9dbcbd92 867// printf("%f\n", avctx->psnr_y);
43f1708f 868 }
17592475 869 return pbBufPtr(&s->pb) - s->pb.buf;
de6d9b64
FB
870}
871
44eb4951
MN
872static inline void gmc1_motion(MpegEncContext *s,
873 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
874 int dest_offset,
875 UINT8 **ref_picture, int src_offset,
876 int h)
877{
878 UINT8 *ptr;
0fd90455 879 int offset, src_x, src_y, linesize, uvlinesize;
44eb4951
MN
880 int motion_x, motion_y;
881
d6231b9e 882 if(s->real_sprite_warping_points>1) printf("more than 1 warp point isnt supported\n");
44eb4951
MN
883 motion_x= s->sprite_offset[0][0];
884 motion_y= s->sprite_offset[0][1];
885 src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1));
886 src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1));
887 motion_x<<=(3-s->sprite_warping_accuracy);
888 motion_y<<=(3-s->sprite_warping_accuracy);
889 src_x = clip(src_x, -16, s->width);
890 if (src_x == s->width)
891 motion_x =0;
892 src_y = clip(src_y, -16, s->height);
893 if (src_y == s->height)
894 motion_y =0;
895
896 linesize = s->linesize;
0fd90455 897 uvlinesize = s->uvlinesize;
44eb4951
MN
898 ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
899
900 dest_y+=dest_offset;
901 gmc1(dest_y , ptr , linesize, h, motion_x&15, motion_y&15, s->no_rounding);
902 gmc1(dest_y+8, ptr+8, linesize, h, motion_x&15, motion_y&15, s->no_rounding);
903
904 motion_x= s->sprite_offset[1][0];
905 motion_y= s->sprite_offset[1][1];
906 src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1));
907 src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1));
908 motion_x<<=(3-s->sprite_warping_accuracy);
909 motion_y<<=(3-s->sprite_warping_accuracy);
910 src_x = clip(src_x, -8, s->width>>1);
911 if (src_x == s->width>>1)
912 motion_x =0;
913 src_y = clip(src_y, -8, s->height>>1);
914 if (src_y == s->height>>1)
915 motion_y =0;
916
0fd90455 917 offset = (src_y * uvlinesize) + src_x + (src_offset>>1);
44eb4951 918 ptr = ref_picture[1] + offset;
0fd90455 919 gmc1(dest_cb + (dest_offset>>1), ptr, uvlinesize, h>>1, motion_x&15, motion_y&15, s->no_rounding);
44eb4951 920 ptr = ref_picture[2] + offset;
0fd90455 921 gmc1(dest_cr + (dest_offset>>1), ptr, uvlinesize, h>>1, motion_x&15, motion_y&15, s->no_rounding);
44eb4951
MN
922
923 return;
924}
925
93a21abd
MN
926static void emulated_edge_mc(UINT8 *buf, UINT8 *src, int linesize, int block_w, int block_h,
927 int src_x, int src_y, int w, int h){
928 int x, y;
929 int start_y, start_x, end_y, end_x;
930
931 if(src_y>= h){
932 src+= (h-1-src_y)*linesize;
933 src_y=h-1;
225f9c44
MN
934 }else if(src_y<=-block_h){
935 src+= (1-block_h-src_y)*linesize;
936 src_y=1-block_h;
93a21abd
MN
937 }
938 if(src_x>= w){
939 src+= (w-1-src_x);
940 src_x=w-1;
225f9c44
MN
941 }else if(src_x<=-block_w){
942 src+= (1-block_w-src_x);
943 src_x=1-block_w;
93a21abd
MN
944 }
945
946 start_y= MAX(0, -src_y);
947 start_x= MAX(0, -src_x);
948 end_y= MIN(block_h, h-src_y);
949 end_x= MIN(block_w, w-src_x);
950
951 // copy existing part
952 for(y=start_y; y<end_y; y++){
953 for(x=start_x; x<end_x; x++){
954 buf[x + y*linesize]= src[x + y*linesize];
955 }
956 }
957
958 //top
959 for(y=0; y<start_y; y++){
960 for(x=start_x; x<end_x; x++){
961 buf[x + y*linesize]= buf[x + start_y*linesize];
962 }
963 }
964
965 //bottom
966 for(y=end_y; y<block_h; y++){
967 for(x=start_x; x<end_x; x++){
968 buf[x + y*linesize]= buf[x + (end_y-1)*linesize];
969 }
970 }
971
972 for(y=0; y<block_h; y++){
973 //left
974 for(x=0; x<start_x; x++){
975 buf[x + y*linesize]= buf[start_x + y*linesize];
976 }
977
978 //right
979 for(x=end_x; x<block_w; x++){
980 buf[x + y*linesize]= buf[end_x - 1 + y*linesize];
981 }
982 }
983}
984
985
de6d9b64
FB
986/* apply one mpeg motion vector to the three components */
987static inline void mpeg_motion(MpegEncContext *s,
988 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
989 int dest_offset,
990 UINT8 **ref_picture, int src_offset,
991 int field_based, op_pixels_func *pix_op,
992 int motion_x, int motion_y, int h)
993{
994 UINT8 *ptr;
995 int dxy, offset, mx, my, src_x, src_y, height, linesize;
93a21abd
MN
996 int emu=0;
997
44eb4951
MN
998if(s->quarter_sample)
999{
1000 motion_x>>=1;
1001 motion_y>>=1;
1002}
de6d9b64
FB
1003 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
1004 src_x = s->mb_x * 16 + (motion_x >> 1);
1005 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 1);
1006
1007 /* WARNING: do no forget half pels */
1008 height = s->height >> field_based;
1009 src_x = clip(src_x, -16, s->width);
1010 if (src_x == s->width)
1011 dxy &= ~1;
1012 src_y = clip(src_y, -16, height);
1013 if (src_y == height)
1014 dxy &= ~2;
1015 linesize = s->linesize << field_based;
1016 ptr = ref_picture[0] + (src_y * linesize) + (src_x) + src_offset;
1017 dest_y += dest_offset;
93a21abd
MN
1018
1019 if(s->flags&CODEC_FLAG_EMU_EDGE){
1020 if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 16 > s->width
1021 || src_y + (motion_y&1) + h > height){
1022 emulated_edge_mc(s->edge_emu_buffer, ptr, linesize, 17, h+1, src_x, src_y, s->width, height);
1023 ptr= s->edge_emu_buffer;
1024 emu=1;
1025 }
1026 }
de6d9b64
FB
1027 pix_op[dxy](dest_y, ptr, linesize, h);
1028 pix_op[dxy](dest_y + 8, ptr + 8, linesize, h);
1029
b50eef3a
MN
1030 if(s->flags&CODEC_FLAG_GRAY) return;
1031
de6d9b64
FB
1032 if (s->out_format == FMT_H263) {
1033 dxy = 0;
1034 if ((motion_x & 3) != 0)
1035 dxy |= 1;
1036 if ((motion_y & 3) != 0)
1037 dxy |= 2;
1038 mx = motion_x >> 2;
1039 my = motion_y >> 2;
1040 } else {
1041 mx = motion_x / 2;
1042 my = motion_y / 2;
1043 dxy = ((my & 1) << 1) | (mx & 1);
1044 mx >>= 1;
1045 my >>= 1;
1046 }
1047
1048 src_x = s->mb_x * 8 + mx;
1049 src_y = s->mb_y * (8 >> field_based) + my;
1050 src_x = clip(src_x, -8, s->width >> 1);
1051 if (src_x == (s->width >> 1))
1052 dxy &= ~1;
1053 src_y = clip(src_y, -8, height >> 1);
1054 if (src_y == (height >> 1))
1055 dxy &= ~2;
1056
0fd90455 1057 offset = (src_y * s->uvlinesize) + src_x + (src_offset >> 1);
de6d9b64 1058 ptr = ref_picture[1] + offset;
93a21abd 1059 if(emu){
0fd90455 1060 emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
93a21abd
MN
1061 ptr= s->edge_emu_buffer;
1062 }
0fd90455 1063 pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, s->uvlinesize, h >> 1);
93a21abd 1064
de6d9b64 1065 ptr = ref_picture[2] + offset;
93a21abd 1066 if(emu){
0fd90455 1067 emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
93a21abd
MN
1068 ptr= s->edge_emu_buffer;
1069 }
0fd90455 1070 pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, s->uvlinesize, h >> 1);
de6d9b64
FB
1071}
1072
44eb4951
MN
1073static inline void qpel_motion(MpegEncContext *s,
1074 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
1075 int dest_offset,
1076 UINT8 **ref_picture, int src_offset,
1077 int field_based, op_pixels_func *pix_op,
1078 qpel_mc_func *qpix_op,
1079 int motion_x, int motion_y, int h)
1080{
1081 UINT8 *ptr;
1082 int dxy, offset, mx, my, src_x, src_y, height, linesize;
225f9c44 1083 int emu=0;
44eb4951
MN
1084
1085 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
1086 src_x = s->mb_x * 16 + (motion_x >> 2);
1087 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
1088
1089 height = s->height >> field_based;
1090 src_x = clip(src_x, -16, s->width);
1091 if (src_x == s->width)
1092 dxy &= ~3;
1093 src_y = clip(src_y, -16, height);
1094 if (src_y == height)
1095 dxy &= ~12;
1096 linesize = s->linesize << field_based;
1097 ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
1098 dest_y += dest_offset;
1099//printf("%d %d %d\n", src_x, src_y, dxy);
225f9c44
MN
1100
1101 if(s->flags&CODEC_FLAG_EMU_EDGE){
1102 if(src_x<0 || src_y<0 || src_x + (motion_x&3) + 16 > s->width
1103 || src_y + (motion_y&3) + h > height){
1104 emulated_edge_mc(s->edge_emu_buffer, ptr, linesize, 17, h+1, src_x, src_y, s->width, height);
1105 ptr= s->edge_emu_buffer;
1106 emu=1;
1107 }
1108 }
44eb4951
MN
1109 qpix_op[dxy](dest_y , ptr , linesize, linesize, motion_x&3, motion_y&3);
1110 qpix_op[dxy](dest_y + 8, ptr + 8, linesize, linesize, motion_x&3, motion_y&3);
1111 qpix_op[dxy](dest_y + linesize*8 , ptr + linesize*8 , linesize, linesize, motion_x&3, motion_y&3);
1112 qpix_op[dxy](dest_y + linesize*8 + 8, ptr + linesize*8 + 8, linesize, linesize, motion_x&3, motion_y&3);
1113
b50eef3a
MN
1114 if(s->flags&CODEC_FLAG_GRAY) return;
1115
44eb4951
MN
1116 mx= (motion_x>>1) | (motion_x&1);
1117 my= (motion_y>>1) | (motion_y&1);
1118
1119 dxy = 0;
1120 if ((mx & 3) != 0)
1121 dxy |= 1;
1122 if ((my & 3) != 0)
1123 dxy |= 2;
1124 mx = mx >> 2;
1125 my = my >> 2;
1126
1127 src_x = s->mb_x * 8 + mx;
1128 src_y = s->mb_y * (8 >> field_based) + my;
1129 src_x = clip(src_x, -8, s->width >> 1);
1130 if (src_x == (s->width >> 1))
1131 dxy &= ~1;
1132 src_y = clip(src_y, -8, height >> 1);
1133 if (src_y == (height >> 1))
1134 dxy &= ~2;
1135
0fd90455 1136 offset = (src_y * s->uvlinesize) + src_x + (src_offset >> 1);
44eb4951 1137 ptr = ref_picture[1] + offset;
225f9c44 1138 if(emu){
0fd90455 1139 emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
225f9c44
MN
1140 ptr= s->edge_emu_buffer;
1141 }
0fd90455 1142 pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, s->uvlinesize, h >> 1);
225f9c44 1143
44eb4951 1144 ptr = ref_picture[2] + offset;
225f9c44 1145 if(emu){
0fd90455 1146 emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
225f9c44
MN
1147 ptr= s->edge_emu_buffer;
1148 }
0fd90455 1149 pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, s->uvlinesize, h >> 1);
44eb4951
MN
1150}
1151
1152
de6d9b64
FB
1153static inline void MPV_motion(MpegEncContext *s,
1154 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
1155 int dir, UINT8 **ref_picture,
44eb4951 1156 op_pixels_func *pix_op, qpel_mc_func *qpix_op)
de6d9b64
FB
1157{
1158 int dxy, offset, mx, my, src_x, src_y, motion_x, motion_y;
1159 int mb_x, mb_y, i;
1160 UINT8 *ptr, *dest;
225f9c44 1161 int emu=0;
de6d9b64
FB
1162
1163 mb_x = s->mb_x;
1164 mb_y = s->mb_y;
1165
1166 switch(s->mv_type) {
1167 case MV_TYPE_16X16:
44eb4951
MN
1168 if(s->mcsel){
1169#if 0
1170 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1171 ref_picture, 0,
1172 0, pix_op,
1173 s->sprite_offset[0][0]>>3,
1174 s->sprite_offset[0][1]>>3,
1175 16);
1176#else
1177 gmc1_motion(s, dest_y, dest_cb, dest_cr, 0,
1178 ref_picture, 0,
1179 16);
1180#endif
6f91bcd1 1181 }else if(s->quarter_sample && dir==0){ //FIXME
44eb4951
MN
1182 qpel_motion(s, dest_y, dest_cb, dest_cr, 0,
1183 ref_picture, 0,
1184 0, pix_op, qpix_op,
1185 s->mv[dir][0][0], s->mv[dir][0][1], 16);
1186 }else{
1187 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1188 ref_picture, 0,
1189 0, pix_op,
1190 s->mv[dir][0][0], s->mv[dir][0][1], 16);
1191 }
de6d9b64
FB
1192 break;
1193 case MV_TYPE_8X8:
1194 for(i=0;i<4;i++) {
1195 motion_x = s->mv[dir][i][0];
1196 motion_y = s->mv[dir][i][1];
1197
1198 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
1199 src_x = mb_x * 16 + (motion_x >> 1) + (i & 1) * 8;
cf8039b2 1200 src_y = mb_y * 16 + (motion_y >> 1) + (i >>1) * 8;
de6d9b64
FB
1201
1202 /* WARNING: do no forget half pels */
1203 src_x = clip(src_x, -16, s->width);
1204 if (src_x == s->width)
1205 dxy &= ~1;
1206 src_y = clip(src_y, -16, s->height);
1207 if (src_y == s->height)
1208 dxy &= ~2;
1209
1210 ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
225f9c44
MN
1211 if(s->flags&CODEC_FLAG_EMU_EDGE){
1212 if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 8 > s->width
1213 || src_y + (motion_y&1) + 8 > s->height){
1214 emulated_edge_mc(s->edge_emu_buffer, ptr, s->linesize, 9, 9, src_x, src_y, s->width, s->height);
1215 ptr= s->edge_emu_buffer;
1216 }
1217 }
de6d9b64
FB
1218 dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
1219 pix_op[dxy](dest, ptr, s->linesize, 8);
1220 }
b50eef3a
MN
1221
1222 if(s->flags&CODEC_FLAG_GRAY) break;
de6d9b64
FB
1223 /* In case of 8X8, we construct a single chroma motion vector
1224 with a special rounding */
1225 mx = 0;
1226 my = 0;
1227 for(i=0;i<4;i++) {
1228 mx += s->mv[dir][i][0];
1229 my += s->mv[dir][i][1];
1230 }
1231 if (mx >= 0)
1232 mx = (h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
1233 else {
1234 mx = -mx;
1235 mx = -(h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
1236 }
1237 if (my >= 0)
1238 my = (h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
1239 else {
1240 my = -my;
1241 my = -(h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
1242 }
1243 dxy = ((my & 1) << 1) | (mx & 1);
1244 mx >>= 1;
1245 my >>= 1;
1246
1247 src_x = mb_x * 8 + mx;
1248 src_y = mb_y * 8 + my;
1249 src_x = clip(src_x, -8, s->width/2);
1250 if (src_x == s->width/2)
1251 dxy &= ~1;
1252 src_y = clip(src_y, -8, s->height/2);
1253 if (src_y == s->height/2)
1254 dxy &= ~2;
1255
0fd90455 1256 offset = (src_y * (s->uvlinesize)) + src_x;
de6d9b64 1257 ptr = ref_picture[1] + offset;
225f9c44
MN
1258 if(s->flags&CODEC_FLAG_EMU_EDGE){
1259 if(src_x<0 || src_y<0 || src_x + (dxy &1) + 8 > s->width >>1
1260 || src_y + (dxy>>1) + 8 > s->height>>1){
0fd90455 1261 emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
225f9c44
MN
1262 ptr= s->edge_emu_buffer;
1263 emu=1;
1264 }
1265 }
0fd90455 1266 pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
225f9c44 1267
de6d9b64 1268 ptr = ref_picture[2] + offset;
225f9c44 1269 if(emu){
0fd90455 1270 emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
225f9c44
MN
1271 ptr= s->edge_emu_buffer;
1272 }
0fd90455 1273 pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
de6d9b64
FB
1274 break;
1275 case MV_TYPE_FIELD:
1276 if (s->picture_structure == PICT_FRAME) {
1277 /* top field */
1278 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1279 ref_picture, s->field_select[dir][0] ? s->linesize : 0,
1280 1, pix_op,
1281 s->mv[dir][0][0], s->mv[dir][0][1], 8);
1282 /* bottom field */
1283 mpeg_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
1284 ref_picture, s->field_select[dir][1] ? s->linesize : 0,
1285 1, pix_op,
1286 s->mv[dir][1][0], s->mv[dir][1][1], 8);
1287 } else {
1288
1289
1290 }
1291 break;
1292 }
1293}
1294
1295
1296/* put block[] to dest[] */
1297static inline void put_dct(MpegEncContext *s,
1298 DCTELEM *block, int i, UINT8 *dest, int line_size)
1299{
1300 if (!s->mpeg2)
21af69f7 1301 s->dct_unquantize(s, block, i, s->qscale);
ad31c904 1302 ff_idct_put (dest, line_size, block);
de6d9b64
FB
1303}
1304
1305/* add block[] to dest[] */
1306static inline void add_dct(MpegEncContext *s,
1307 DCTELEM *block, int i, UINT8 *dest, int line_size)
1308{
0f440e02
MN
1309 if (s->block_last_index[i] >= 0) {
1310 ff_idct_add (dest, line_size, block);
1311 }
1312}
2417652e 1313
0f440e02
MN
1314static inline void add_dequant_dct(MpegEncContext *s,
1315 DCTELEM *block, int i, UINT8 *dest, int line_size)
1316{
de6d9b64 1317 if (s->block_last_index[i] >= 0) {
0f440e02 1318 s->dct_unquantize(s, block, i, s->qscale);
9dbcbd92 1319
ad31c904 1320 ff_idct_add (dest, line_size, block);
de6d9b64
FB
1321 }
1322}
1323
7f2fe444
MN
1324/**
1325 * cleans dc, ac, coded_block for the current non intra MB
1326 */
1327void ff_clean_intra_table_entries(MpegEncContext *s)
1328{
1329 int wrap = s->block_wrap[0];
1330 int xy = s->block_index[0];
1331
1332 s->dc_val[0][xy ] =
1333 s->dc_val[0][xy + 1 ] =
1334 s->dc_val[0][xy + wrap] =
1335 s->dc_val[0][xy + 1 + wrap] = 1024;
1336 /* ac pred */
1337 memset(s->ac_val[0][xy ], 0, 32 * sizeof(INT16));
1338 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(INT16));
1339 if (s->msmpeg4_version>=3) {
1340 s->coded_block[xy ] =
1341 s->coded_block[xy + 1 ] =
1342 s->coded_block[xy + wrap] =
1343 s->coded_block[xy + 1 + wrap] = 0;
1344 }
1345 /* chroma */
1346 wrap = s->block_wrap[4];
1347 xy = s->mb_x + 1 + (s->mb_y + 1) * wrap;
1348 s->dc_val[1][xy] =
1349 s->dc_val[2][xy] = 1024;
1350 /* ac pred */
1351 memset(s->ac_val[1][xy], 0, 16 * sizeof(INT16));
1352 memset(s->ac_val[2][xy], 0, 16 * sizeof(INT16));
1353
1354 s->mbintra_table[s->mb_x + s->mb_y*s->mb_width]= 0;
1355}
1356
de6d9b64
FB
1357/* generic function called after a macroblock has been parsed by the
1358 decoder or after it has been encoded by the encoder.
1359
1360 Important variables used:
1361 s->mb_intra : true if intra macroblock
1362 s->mv_dir : motion vector direction
1363 s->mv_type : motion vector type
1364 s->mv : motion vector
1365 s->interlaced_dct : true if interlaced dct used (mpeg2)
1366 */
1367void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
1368{
8257bf05 1369 int mb_x, mb_y;
0f440e02 1370 const int mb_xy = s->mb_y * s->mb_width + s->mb_x;
de6d9b64
FB
1371
1372 mb_x = s->mb_x;
1373 mb_y = s->mb_y;
1374
79e7b305 1375#ifdef FF_POSTPROCESS
ae72cda6 1376 /* Obsolete. Exists for compatibility with mplayer only. */
79e7b305
A
1377 quant_store[mb_y][mb_x]=s->qscale;
1378 //printf("[%02d][%02d] %d\n",mb_x,mb_y,s->qscale);
ae72cda6 1379#else
8696b636 1380 if(s->avctx->quant_store) s->avctx->quant_store[mb_y*s->avctx->qstride+mb_x] = s->qscale;
79e7b305
A
1381#endif
1382
de6d9b64
FB
1383 /* update DC predictors for P macroblocks */
1384 if (!s->mb_intra) {
9e15ad28 1385 if (s->h263_pred || s->h263_aic) {
0f440e02 1386 if(s->mbintra_table[mb_xy])
7f2fe444 1387 ff_clean_intra_table_entries(s);
de6d9b64 1388 } else {
7f2fe444
MN
1389 s->last_dc[0] =
1390 s->last_dc[1] =
de6d9b64
FB
1391 s->last_dc[2] = 128 << s->intra_dc_precision;
1392 }
1393 }
9e15ad28 1394 else if (s->h263_pred || s->h263_aic)
0f440e02 1395 s->mbintra_table[mb_xy]=1;
bff6ecaa 1396
c5b1c10a 1397 /* update motion predictor, not for B-frames as they need the motion_val from the last P/S-Frame */
0f440e02
MN
1398 if (s->out_format == FMT_H263 && s->pict_type!=B_TYPE) { //FIXME move into h263.c if possible, format specific stuff shouldnt be here
1399 int motion_x, motion_y;
de6d9b64 1400
0f440e02
MN
1401 const int wrap = s->block_wrap[0];
1402 const int xy = s->block_index[0];
de6d9b64
FB
1403 if (s->mb_intra) {
1404 motion_x = 0;
1405 motion_y = 0;
1406 goto motion_init;
1407 } else if (s->mv_type == MV_TYPE_16X16) {
1408 motion_x = s->mv[0][0][0];
1409 motion_y = s->mv[0][0][1];
1410 motion_init:
1411 /* no update if 8X8 because it has been done during parsing */
8257bf05
ZK
1412 s->motion_val[xy][0] = motion_x;
1413 s->motion_val[xy][1] = motion_y;
1414 s->motion_val[xy + 1][0] = motion_x;
1415 s->motion_val[xy + 1][1] = motion_y;
1416 s->motion_val[xy + wrap][0] = motion_x;
1417 s->motion_val[xy + wrap][1] = motion_y;
1418 s->motion_val[xy + 1 + wrap][0] = motion_x;
1419 s->motion_val[xy + 1 + wrap][1] = motion_y;
de6d9b64
FB
1420 }
1421 }
1422
9dbcbd92 1423 if (!(s->encoding && (s->intra_only || s->pict_type==B_TYPE))) {
de6d9b64 1424 UINT8 *dest_y, *dest_cb, *dest_cr;
0f440e02
MN
1425 int dct_linesize, dct_offset;
1426 op_pixels_func *op_pix;
1427 qpel_mc_func *op_qpix;
3bb4e23a 1428
9dbcbd92
MN
1429 /* avoid copy if macroblock skipped in last frame too
1430 dont touch it for B-frames as they need the skip info from the next p-frame */
1431 if (s->pict_type != B_TYPE) {
0f440e02 1432 UINT8 *mbskip_ptr = &s->mbskip_table[mb_xy];
3bb4e23a
FB
1433 if (s->mb_skiped) {
1434 s->mb_skiped = 0;
0fd90455
MN
1435
1436 (*mbskip_ptr) ++; /* indicate that this time we skiped it */
1437 if(*mbskip_ptr >99) *mbskip_ptr= 99;
1438
9dbcbd92
MN
1439 /* if previous was skipped too, then nothing to do !
1440 skip only during decoding as we might trash the buffers during encoding a bit */
0fd90455 1441 if (*mbskip_ptr >= s->ip_buffer_count && !s->encoding)
3bb4e23a 1442 goto the_end;
3bb4e23a
FB
1443 } else {
1444 *mbskip_ptr = 0; /* not skipped */
1445 }
1446 }
de6d9b64 1447
fe072fb4
MN
1448 dest_y = s->current_picture [0] + (mb_y * 16* s->linesize ) + mb_x * 16;
1449 dest_cb = s->current_picture[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
1450 dest_cr = s->current_picture[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
de6d9b64
FB
1451
1452 if (s->interlaced_dct) {
1453 dct_linesize = s->linesize * 2;
1454 dct_offset = s->linesize;
1455 } else {
1456 dct_linesize = s->linesize;
1457 dct_offset = s->linesize * 8;
1458 }
1459
1460 if (!s->mb_intra) {
1461 /* motion handling */
7f2fe444 1462 /* decoding or more than one mb_type (MC was allready done otherwise) */
0f440e02 1463 if((!s->encoding) || (s->mb_type[mb_xy]&(s->mb_type[mb_xy]-1))){
91029be7 1464 if ((!s->no_rounding) || s->pict_type==B_TYPE){
9dbcbd92
MN
1465 op_pix = put_pixels_tab;
1466 op_qpix= qpel_mc_rnd_tab;
1467 }else{
1468 op_pix = put_no_rnd_pixels_tab;
1469 op_qpix= qpel_mc_no_rnd_tab;
1470 }
de6d9b64 1471
9dbcbd92
MN
1472 if (s->mv_dir & MV_DIR_FORWARD) {
1473 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
91029be7 1474 if ((!s->no_rounding) || s->pict_type==B_TYPE)
9dbcbd92
MN
1475 op_pix = avg_pixels_tab;
1476 else
1477 op_pix = avg_no_rnd_pixels_tab;
1478 }
1479 if (s->mv_dir & MV_DIR_BACKWARD) {
1480 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
1481 }
de6d9b64
FB
1482 }
1483
0f440e02
MN
1484 /* skip dequant / idct if we are really late ;) */
1485 if(s->hurry_up>1) goto the_end;
1486
de6d9b64 1487 /* add dct residue */
c03a7172 1488 if(s->encoding || !(s->mpeg2 || s->h263_msmpeg4 || s->codec_id==CODEC_ID_MPEG4)){
0f440e02
MN
1489 add_dequant_dct(s, block[0], 0, dest_y, dct_linesize);
1490 add_dequant_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1491 add_dequant_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1492 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1493
b50eef3a 1494 if(!(s->flags&CODEC_FLAG_GRAY)){
0fd90455
MN
1495 add_dequant_dct(s, block[4], 4, dest_cb, s->uvlinesize);
1496 add_dequant_dct(s, block[5], 5, dest_cr, s->uvlinesize);
b50eef3a 1497 }
0f440e02
MN
1498 } else {
1499 add_dct(s, block[0], 0, dest_y, dct_linesize);
1500 add_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1501 add_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1502 add_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
de6d9b64 1503
b50eef3a 1504 if(!(s->flags&CODEC_FLAG_GRAY)){
0fd90455
MN
1505 add_dct(s, block[4], 4, dest_cb, s->uvlinesize);
1506 add_dct(s, block[5], 5, dest_cr, s->uvlinesize);
b50eef3a 1507 }
0f440e02 1508 }
de6d9b64
FB
1509 } else {
1510 /* dct only in intra block */
1511 put_dct(s, block[0], 0, dest_y, dct_linesize);
1512 put_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1513 put_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1514 put_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1515
b50eef3a 1516 if(!(s->flags&CODEC_FLAG_GRAY)){
0fd90455
MN
1517 put_dct(s, block[4], 4, dest_cb, s->uvlinesize);
1518 put_dct(s, block[5], 5, dest_cr, s->uvlinesize);
b50eef3a 1519 }
de6d9b64
FB
1520 }
1521 }
3bb4e23a 1522 the_end:
ba6802de 1523 emms_c(); //FIXME remove
de6d9b64
FB
1524}
1525
7f2fe444
MN
1526static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold, int skip_dc)
1527{
1528 static const char tab[64]=
1529 {3,2,2,1,1,1,1,1,
1530 1,1,1,1,1,1,1,1,
1531 1,1,1,1,1,1,1,1,
1532 0,0,0,0,0,0,0,0,
1533 0,0,0,0,0,0,0,0,
1534 0,0,0,0,0,0,0,0,
1535 0,0,0,0,0,0,0,0,
1536 0,0,0,0,0,0,0,0};
1537 int score=0;
1538 int run=0;
1539 int i;
1540 DCTELEM *block= s->block[n];
1541 const int last_index= s->block_last_index[n];
1542
1543 if(skip_dc) skip_dc=1;
1544
1545 /* are all which we could set to zero are allready zero? */
1546 if(last_index<=skip_dc - 1) return;
1547
1548 for(i=0; i<=last_index; i++){
1549 const int j = zigzag_direct[i];
1550 const int level = ABS(block[j]);
1551 if(level==1){
1552 if(skip_dc && i==0) continue;
1553 score+= tab[run];
1554 run=0;
1555 }else if(level>1){
1556 return;
1557 }else{
1558 run++;
1559 }
1560 }
1561 if(score >= threshold) return;
1562 for(i=skip_dc; i<=last_index; i++){
1563 const int j = zigzag_direct[i];
1564 block[j]=0;
1565 }
1566 if(block[0]) s->block_last_index[n]= 0;
1567 else s->block_last_index[n]= -1;
1568}
1569
d7e9533a
MN
1570static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1571{
1572 int i;
1573 const int maxlevel= s->max_qcoeff;
1574 const int minlevel= s->min_qcoeff;
ef5b1b5a
J
1575
1576 for(i=0;i<=last_index; i++){
d7e9533a
MN
1577 const int j = zigzag_direct[i];
1578 int level = block[j];
1579
1580 if (level>maxlevel) level=maxlevel;
1581 else if(level<minlevel) level=minlevel;
1582 block[j]= level;
1583 }
1584}
9dbcbd92
MN
1585
1586static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
de6d9b64 1587{
ba6802de
MN
1588 const int mb_x= s->mb_x;
1589 const int mb_y= s->mb_y;
ba6802de 1590 int i;
7f2fe444 1591 int skip_dct[6];
9dbcbd92
MN
1592#if 0
1593 if (s->interlaced_dct) {
1594 dct_linesize = s->linesize * 2;
1595 dct_offset = s->linesize;
1596 } else {
1597 dct_linesize = s->linesize;
1598 dct_offset = s->linesize * 8;
1599 }
1600#endif
7f2fe444 1601 for(i=0; i<6; i++) skip_dct[i]=0;
ba6802de 1602
9dbcbd92
MN
1603 if (s->mb_intra) {
1604 UINT8 *ptr;
1605 int wrap;
1606
1607 wrap = s->linesize;
1608 ptr = s->new_picture[0] + (mb_y * 16 * wrap) + mb_x * 16;
1609 get_pixels(s->block[0], ptr , wrap);
1610 get_pixels(s->block[1], ptr + 8, wrap);
1611 get_pixels(s->block[2], ptr + 8 * wrap , wrap);
1612 get_pixels(s->block[3], ptr + 8 * wrap + 8, wrap);
1613
6282185e
MN
1614 if(s->flags&CODEC_FLAG_GRAY){
1615 skip_dct[4]= 1;
1616 skip_dct[5]= 1;
1617 }else{
1618 wrap >>=1;
1619 ptr = s->new_picture[1] + (mb_y * 8 * wrap) + mb_x * 8;
1620 get_pixels(s->block[4], ptr, wrap);
9dbcbd92 1621
6282185e
MN
1622 ptr = s->new_picture[2] + (mb_y * 8 * wrap) + mb_x * 8;
1623 get_pixels(s->block[5], ptr, wrap);
1624 }
9dbcbd92
MN
1625 }else{
1626 op_pixels_func *op_pix;
1627 qpel_mc_func *op_qpix;
1628 UINT8 *dest_y, *dest_cb, *dest_cr;
7f2fe444
MN
1629 UINT8 *ptr_y, *ptr_cb, *ptr_cr;
1630 int wrap_y, wrap_c;
9dbcbd92
MN
1631
1632 dest_y = s->current_picture[0] + (mb_y * 16 * s->linesize ) + mb_x * 16;
0fd90455
MN
1633 dest_cb = s->current_picture[1] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
1634 dest_cr = s->current_picture[2] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
7f2fe444
MN
1635 wrap_y = s->linesize;
1636 wrap_c = wrap_y>>1;
1637 ptr_y = s->new_picture[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1638 ptr_cb = s->new_picture[1] + (mb_y * 8 * wrap_c) + mb_x * 8;
1639 ptr_cr = s->new_picture[2] + (mb_y * 8 * wrap_c) + mb_x * 8;
9dbcbd92 1640
91029be7 1641 if ((!s->no_rounding) || s->pict_type==B_TYPE){
9dbcbd92
MN
1642 op_pix = put_pixels_tab;
1643 op_qpix= qpel_mc_rnd_tab;
cf8039b2 1644 }else{
9dbcbd92
MN
1645 op_pix = put_no_rnd_pixels_tab;
1646 op_qpix= qpel_mc_no_rnd_tab;
1647 }
1648
1649 if (s->mv_dir & MV_DIR_FORWARD) {
1650 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
91029be7 1651 if ((!s->no_rounding) || s->pict_type==B_TYPE)
9dbcbd92
MN
1652 op_pix = avg_pixels_tab;
1653 else
1654 op_pix = avg_no_rnd_pixels_tab;
1655 }
1656 if (s->mv_dir & MV_DIR_BACKWARD) {
1657 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
ba6802de 1658 }
9dbcbd92 1659
7f2fe444
MN
1660 diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1661 diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1662 diff_pixels(s->block[2], ptr_y + 8 * wrap_y , dest_y + 8 * wrap_y , wrap_y);
1663 diff_pixels(s->block[3], ptr_y + 8 * wrap_y + 8, dest_y + 8 * wrap_y + 8, wrap_y);
6282185e
MN
1664
1665 if(s->flags&CODEC_FLAG_GRAY){
1666 skip_dct[4]= 1;
1667 skip_dct[5]= 1;
1668 }else{
1669 diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1670 diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1671 }
1672
7f2fe444
MN
1673 /* pre quantization */
1674 if(s->mc_mb_var[s->mb_width*mb_y+ mb_x]<2*s->qscale*s->qscale){
1675 if(pix_abs8x8(ptr_y , dest_y , wrap_y) < 20*s->qscale) skip_dct[0]= 1;
1676 if(pix_abs8x8(ptr_y + 8, dest_y + 8, wrap_y) < 20*s->qscale) skip_dct[1]= 1;
1677 if(pix_abs8x8(ptr_y + 8*wrap_y , dest_y + 8*wrap_y , wrap_y) < 20*s->qscale) skip_dct[2]= 1;
1678 if(pix_abs8x8(ptr_y + 8*wrap_y + 8, dest_y + 8*wrap_y + 8, wrap_y) < 20*s->qscale) skip_dct[3]= 1;
1679 if(pix_abs8x8(ptr_cb , dest_cb , wrap_y) < 20*s->qscale) skip_dct[4]= 1;
1680 if(pix_abs8x8(ptr_cr , dest_cr , wrap_y) < 20*s->qscale) skip_dct[5]= 1;
1681#if 0
1682{
1683 static int stat[7];
1684 int num=0;
1685 for(i=0; i<6; i++)
1686 if(skip_dct[i]) num++;
1687 stat[num]++;
1688
1689 if(s->mb_x==0 && s->mb_y==0){
1690 for(i=0; i<7; i++){
1691 printf("%6d %1d\n", stat[i], i);
1692 }
1693 }
1694}
1695#endif
1696 }
9dbcbd92 1697
ba6802de
MN
1698 }
1699
1700#if 0
1701 {
1702 float adap_parm;
1703
1704 adap_parm = ((s->avg_mb_var << 1) + s->mb_var[s->mb_width*mb_y+mb_x] + 1.0) /
1705 ((s->mb_var[s->mb_width*mb_y+mb_x] << 1) + s->avg_mb_var + 1.0);
1706
1707 printf("\ntype=%c qscale=%2d adap=%0.2f dquant=%4.2f var=%4d avgvar=%4d",
1708 (s->mb_type[s->mb_width*mb_y+mb_x] > 0) ? 'I' : 'P',
1709 s->qscale, adap_parm, s->qscale*adap_parm,
1710 s->mb_var[s->mb_width*mb_y+mb_x], s->avg_mb_var);
1711 }
1712#endif
1713 /* DCT & quantize */
d7e9533a
MN
1714 if(s->out_format==FMT_MJPEG){
1715 for(i=0;i<6;i++) {
1716 int overflow;
1717 s->block_last_index[i] = dct_quantize(s, s->block[i], i, 8, &overflow);
ef5b1b5a 1718 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
d7e9533a
MN
1719 }
1720 }else{
1721 for(i=0;i<6;i++) {
7f2fe444
MN
1722 if(!skip_dct[i]){
1723 int overflow;
1724 s->block_last_index[i] = dct_quantize(s, s->block[i], i, s->qscale, &overflow);
d7e9533a 1725 // FIXME we could decide to change to quantizer instead of clipping
ef5b1b5a
J
1726 // JS: I don't think that would be a good idea it could lower quality instead
1727 // of improve it. Just INTRADC clipping deserves changes in quantizer
7f2fe444
MN
1728 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1729 }else
1730 s->block_last_index[i]= -1;
d7e9533a 1731 }
7f2fe444
MN
1732 if(s->luma_elim_threshold && !s->mb_intra)
1733 for(i=0; i<4; i++)
1734 dct_single_coeff_elimination(s, i, s->luma_elim_threshold, 0);
1735 if(s->chroma_elim_threshold && !s->mb_intra)
1736 for(i=4; i<6; i++)
1737 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold, 1);
ba6802de
MN
1738 }
1739
6282185e
MN
1740 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1741 s->block_last_index[4]=
1742 s->block_last_index[5]= 0;
1743 s->block[4][0]=
1744 s->block[5][0]= 128;
1745 }
1746
ba6802de
MN
1747 /* huffman encode */
1748 switch(s->out_format) {
1749 case FMT_MPEG1:
1750 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1751 break;
1752 case FMT_H263:
1753 if (s->h263_msmpeg4)
1754 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1755 else if(s->h263_pred)
1756 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1757 else
1758 h263_encode_mb(s, s->block, motion_x, motion_y);
1759 break;
1760 case FMT_MJPEG:
1761 mjpeg_encode_mb(s, s->block);
1762 break;
1763 }
1764}
1765
7f2fe444 1766void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length)
ba6802de 1767{
1f0cd30f
MN
1768 int bytes= length>>4;
1769 int bits= length&15;
1770 int i;
1771
7f2fe444
MN
1772 if(length==0) return;
1773
1f0cd30f
MN
1774 for(i=0; i<bytes; i++) put_bits(pb, 16, be2me_16(((uint16_t*)src)[i]));
1775 put_bits(pb, bits, be2me_16(((uint16_t*)src)[i])>>(16-bits));
ba6802de
MN
1776}
1777
7f2fe444 1778static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1f0cd30f
MN
1779 int i;
1780
1781 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1782
1783 /* mpeg1 */
1784 d->mb_incr= s->mb_incr;
1785 for(i=0; i<3; i++)
1786 d->last_dc[i]= s->last_dc[i];
1787
1788 /* statistics */
1789 d->mv_bits= s->mv_bits;
1790 d->i_tex_bits= s->i_tex_bits;
1791 d->p_tex_bits= s->p_tex_bits;
1792 d->i_count= s->i_count;
1793 d->p_count= s->p_count;
1794 d->skip_count= s->skip_count;
1795 d->misc_bits= s->misc_bits;
8b4c7dbc 1796 d->last_bits= 0;
91029be7
MN
1797
1798 d->mb_skiped= s->mb_skiped;
1f0cd30f
MN
1799}
1800
7f2fe444 1801static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1f0cd30f
MN
1802 int i;
1803
1804 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1805 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1806
1807 /* mpeg1 */
1808 d->mb_incr= s->mb_incr;
1809 for(i=0; i<3; i++)
1810 d->last_dc[i]= s->last_dc[i];
1811
1812 /* statistics */
1813 d->mv_bits= s->mv_bits;
1814 d->i_tex_bits= s->i_tex_bits;
1815 d->p_tex_bits= s->p_tex_bits;
1816 d->i_count= s->i_count;
1817 d->p_count= s->p_count;
1818 d->skip_count= s->skip_count;
1819 d->misc_bits= s->misc_bits;
1f0cd30f
MN
1820
1821 d->mb_intra= s->mb_intra;
91029be7 1822 d->mb_skiped= s->mb_skiped;
1f0cd30f
MN
1823 d->mv_type= s->mv_type;
1824 d->mv_dir= s->mv_dir;
1825 d->pb= s->pb;
7f2fe444
MN
1826 if(s->data_partitioning){
1827 d->pb2= s->pb2;
1828 d->tex_pb= s->tex_pb;
1829 }
1f0cd30f
MN
1830 d->block= s->block;
1831 for(i=0; i<6; i++)
1832 d->block_last_index[i]= s->block_last_index[i];
1833}
1834
7f2fe444
MN
1835static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1836 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1837 int *dmin, int *next_block, int motion_x, int motion_y)
1838{
1839 int bits_count;
1840
1841 copy_context_before_encode(s, backup, type);
1842
1843 s->block= s->blocks[*next_block];
1844 s->pb= pb[*next_block];
1845 if(s->data_partitioning){
1846 s->pb2 = pb2 [*next_block];
1847 s->tex_pb= tex_pb[*next_block];
1848 }
1849
1850 encode_mb(s, motion_x, motion_y);
1851
1852 bits_count= get_bit_count(&s->pb);
1853 if(s->data_partitioning){
1854 bits_count+= get_bit_count(&s->pb2);
1855 bits_count+= get_bit_count(&s->tex_pb);
1856 }
1857
1858 if(bits_count<*dmin){
1859 *dmin= bits_count;
1860 *next_block^=1;
1861
1862 copy_context_after_encode(best, s, type);
1863 }
1864}
1f0cd30f 1865
ba6802de
MN
1866static void encode_picture(MpegEncContext *s, int picture_number)
1867{
1868 int mb_x, mb_y, last_gob, pdif = 0;
1869 int i;
098eefe1 1870 int bits;
1f0cd30f 1871 MpegEncContext best_s, backup_s;
7f2fe444
MN
1872 UINT8 bit_buf[2][3000];
1873 UINT8 bit_buf2[2][3000];
1874 UINT8 bit_buf_tex[2][3000];
1875 PutBitContext pb[2], pb2[2], tex_pb[2];
1876
1877 for(i=0; i<2; i++){
1878 init_put_bits(&pb [i], bit_buf [i], 3000, NULL, NULL);
1879 init_put_bits(&pb2 [i], bit_buf2 [i], 3000, NULL, NULL);
1880 init_put_bits(&tex_pb[i], bit_buf_tex[i], 3000, NULL, NULL);
1881 }
de6d9b64
FB
1882
1883 s->picture_number = picture_number;
9cdd6a24 1884
ba6802de
MN
1885 s->block_wrap[0]=
1886 s->block_wrap[1]=
1887 s->block_wrap[2]=
1888 s->block_wrap[3]= s->mb_width*2 + 2;
1889 s->block_wrap[4]=
1890 s->block_wrap[5]= s->mb_width + 2;
1891
9cdd6a24 1892 /* Reset the average MB variance */
7f2fe444
MN
1893 s->mb_var_sum = 0;
1894 s->mc_mb_var_sum = 0;
91029be7
MN
1895
1896 /* we need to initialize some time vars before we can encode b-frames */
1897 if (s->h263_pred && !s->h263_msmpeg4)
1898 ff_set_mpeg4_time(s, s->picture_number);
1899
9cdd6a24 1900 /* Estimate motion for every MB */
9dbcbd92 1901 if(s->pict_type != I_TYPE){
ba6802de
MN
1902 for(mb_y=0; mb_y < s->mb_height; mb_y++) {
1903 s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
1904 s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
1905 s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
1906 s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
1907 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1908 s->mb_x = mb_x;
1909 s->mb_y = mb_y;
1910 s->block_index[0]+=2;
1911 s->block_index[1]+=2;
1912 s->block_index[2]+=2;
1913 s->block_index[3]+=2;
1914
1915 /* compute motion vector & mb_type and store in context */
9dbcbd92
MN
1916 if(s->pict_type==B_TYPE)
1917 ff_estimate_b_frame_motion(s, mb_x, mb_y);
1918 else
1919 ff_estimate_p_frame_motion(s, mb_x, mb_y);
ba6802de 1920// s->mb_type[mb_y*s->mb_width + mb_x]=MB_TYPE_INTER;
9cdd6a24 1921 }
9cdd6a24 1922 }
ba6802de 1923 emms_c();
7f2fe444 1924 }else /* if(s->pict_type == I_TYPE) */{
ba6802de
MN
1925 /* I-Frame */
1926 //FIXME do we need to zero them?
1927 memset(s->motion_val[0], 0, sizeof(INT16)*(s->mb_width*2 + 2)*(s->mb_height*2 + 2)*2);
9dbcbd92 1928 memset(s->p_mv_table , 0, sizeof(INT16)*(s->mb_width+2)*(s->mb_height+2)*2);
ba6802de 1929 memset(s->mb_type , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
9cdd6a24
MN
1930 }
1931
7f2fe444 1932 if(s->mb_var_sum < s->mc_mb_var_sum && s->pict_type == P_TYPE){ //FIXME subtract MV bits
bd31a775 1933 s->pict_type= I_TYPE;
ba6802de 1934 memset(s->mb_type , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
8b4c7dbc
MN
1935 if(s->max_b_frames==0){
1936 s->input_pict_type= I_TYPE;
1937 s->input_picture_in_gop_number=0;
1938 }
ba6802de 1939//printf("Scene change detected, encoding as I Frame\n");
bd31a775 1940 }
9dbcbd92
MN
1941
1942 if(s->pict_type==P_TYPE || s->pict_type==S_TYPE)
1943 s->f_code= ff_get_best_fcode(s, s->p_mv_table, MB_TYPE_INTER);
1944 ff_fix_long_p_mvs(s);
1945 if(s->pict_type==B_TYPE){
1946 s->f_code= ff_get_best_fcode(s, s->b_forw_mv_table, MB_TYPE_FORWARD);
1947 s->b_code= ff_get_best_fcode(s, s->b_back_mv_table, MB_TYPE_BACKWARD);
91029be7
MN
1948
1949 ff_fix_long_b_mvs(s, s->b_forw_mv_table, s->f_code, MB_TYPE_FORWARD);
1950 ff_fix_long_b_mvs(s, s->b_back_mv_table, s->b_code, MB_TYPE_BACKWARD);
1951 ff_fix_long_b_mvs(s, s->b_bidir_forw_mv_table, s->f_code, MB_TYPE_BIDIR);
1952 ff_fix_long_b_mvs(s, s->b_bidir_back_mv_table, s->b_code, MB_TYPE_BIDIR);
45870f57 1953 }
9dbcbd92 1954
45870f57 1955//printf("f_code %d ///\n", s->f_code);
45870f57 1956
bd31a775
MN
1957// printf("%d %d\n", s->avg_mb_var, s->mc_mb_var);
1958
8b4c7dbc
MN
1959 if(s->flags&CODEC_FLAG_PASS2)
1960 s->qscale = ff_rate_estimate_qscale_pass2(s);
1961 else if (!s->fixed_qscale)
1962 s->qscale = ff_rate_estimate_qscale(s);
1963
de6d9b64
FB
1964 if (s->out_format == FMT_MJPEG) {
1965 /* for mjpeg, we do include qscale in the matrix */
adc09b2e 1966 s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
de6d9b64 1967 for(i=1;i<64;i++)
adc09b2e 1968 s->intra_matrix[i] = CLAMP_TO_8BIT((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
d7e9533a
MN
1969 convert_matrix(s->q_intra_matrix, s->q_intra_matrix16,
1970 s->q_intra_matrix16_bias, s->intra_matrix, s->intra_quant_bias);
de6d9b64
FB
1971 }
1972
098eefe1 1973 s->last_bits= get_bit_count(&s->pb);
de6d9b64
FB
1974 switch(s->out_format) {
1975 case FMT_MJPEG:
1976 mjpeg_picture_header(s);
1977 break;
1978 case FMT_H263:
1979 if (s->h263_msmpeg4)
1980 msmpeg4_encode_picture_header(s, picture_number);
1981 else if (s->h263_pred)
1982 mpeg4_encode_picture_header(s, picture_number);
1983 else if (s->h263_rv10)
1984 rv10_encode_picture_header(s, picture_number);
1985 else
1986 h263_encode_picture_header(s, picture_number);
1987 break;
1988 case FMT_MPEG1:
1989 mpeg1_encode_picture_header(s, picture_number);
1990 break;
1991 }
098eefe1
MN
1992 bits= get_bit_count(&s->pb);
1993 s->header_bits= bits - s->last_bits;
1994 s->last_bits= bits;
1995 s->mv_bits=0;
1996 s->misc_bits=0;
1997 s->i_tex_bits=0;
1998 s->p_tex_bits=0;
1999 s->i_count=0;
2000 s->p_count=0;
2001 s->skip_count=0;
2002
de6d9b64
FB
2003 /* init last dc values */
2004 /* note: quant matrix value (8) is implied here */
2005 s->last_dc[0] = 128;
2006 s->last_dc[1] = 128;
2007 s->last_dc[2] = 128;
2008 s->mb_incr = 1;
2009 s->last_mv[0][0][0] = 0;
2010 s->last_mv[0][0][1] = 0;
de6d9b64 2011
644d98a4 2012 /* Get the GOB height based on picture height */
81401c1f 2013 if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4) {
644d98a4
J
2014 if (s->height <= 400)
2015 s->gob_index = 1;
2016 else if (s->height <= 800)
2017 s->gob_index = 2;
2018 else
2019 s->gob_index = 4;
7f2fe444
MN
2020 }else if(s->codec_id==CODEC_ID_MPEG4){
2021 s->gob_index = 1;
644d98a4 2022 }
7f2fe444
MN
2023
2024 if(s->codec_id==CODEC_ID_MPEG4 && s->data_partitioning && s->pict_type!=B_TYPE)
2025 ff_mpeg4_init_partitions(s);
2026
2027 s->resync_mb_x=0;
2028 s->resync_mb_y=0;
e03c341e 2029 for(mb_y=0; mb_y < s->mb_height; mb_y++) {
7f2fe444 2030 /* Put GOB header based on RTP MTU for formats which support it per line (H263*)*/
e03c341e
J
2031 /* TODO: Put all this stuff in a separate generic function */
2032 if (s->rtp_mode) {
2033 if (!mb_y) {
2034 s->ptr_lastgob = s->pb.buf;
2035 s->ptr_last_mb_line = s->pb.buf;
2036 } else if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4 && !(mb_y % s->gob_index)) {
7f2fe444 2037 // MN: we could move the space check from h263 -> here, as its not h263 specific
e03c341e
J
2038 last_gob = h263_encode_gob_header(s, mb_y);
2039 if (last_gob) {
7f2fe444
MN
2040 s->first_slice_line = 1;
2041 }else{
2042 /*MN: we reset it here instead at the end of each line cuz mpeg4 can have
2043 slice lines starting & ending in the middle*/
2044 s->first_slice_line = 0;
e03c341e
J
2045 }
2046 }
2047 }
f5957f3f
MN
2048
2049 s->y_dc_scale= s->y_dc_scale_table[ s->qscale ];
2050 s->c_dc_scale= s->c_dc_scale_table[ s->qscale ];
e03c341e 2051
4278e7a6
MN
2052 s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
2053 s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
2054 s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
2055 s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
2056 s->block_index[4]= s->block_wrap[4]*(mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2);
2057 s->block_index[5]= s->block_wrap[4]*(mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2);
37fbfd0a 2058 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
91029be7
MN
2059 const int mb_type= s->mb_type[mb_y * s->mb_width + mb_x];
2060 const int xy= (mb_y+1) * (s->mb_width+2) + mb_x + 1;
7f2fe444 2061// int d;
ba6802de 2062 int dmin=10000000;
37fbfd0a
J
2063
2064 s->mb_x = mb_x;
2065 s->mb_y = mb_y;
4278e7a6
MN
2066 s->block_index[0]+=2;
2067 s->block_index[1]+=2;
2068 s->block_index[2]+=2;
2069 s->block_index[3]+=2;
2070 s->block_index[4]++;
2071 s->block_index[5]++;
7f2fe444
MN
2072
2073 /* write gob / video packet header for formats which support it at any MB (MPEG4) */
2074 if(s->rtp_mode && s->mb_y>0 && s->codec_id==CODEC_ID_MPEG4){
2075 int pdif= pbBufPtr(&s->pb) - s->ptr_lastgob;
2076
2077 //the *2 is there so we stay below the requested size
2078 if(pdif + s->mb_line_avgsize/s->mb_width >= s->rtp_payload_size){
2079 if(s->codec_id==CODEC_ID_MPEG4){
2080 if(s->data_partitioning && s->pict_type!=B_TYPE){
2081 ff_mpeg4_merge_partitions(s);
2082 ff_mpeg4_init_partitions(s);
2083 }
2084 ff_mpeg4_encode_video_packet_header(s);
2085
2086 if(s->flags&CODEC_FLAG_PASS1){
2087 int bits= get_bit_count(&s->pb);
2088 s->misc_bits+= bits - s->last_bits;
2089 s->last_bits= bits;
2090 }
2091 ff_mpeg4_clean_buffers(s);
2092 }
2093 s->ptr_lastgob = pbBufPtr(&s->pb);
2094 s->first_slice_line=1;
2095 s->resync_mb_x=mb_x;
2096 s->resync_mb_y=mb_y;
2097 }
2098
2099 if( (s->resync_mb_x == s->mb_x)
2100 && s->resync_mb_y+1 == s->mb_y){
2101 s->first_slice_line=0;
2102 }
2103 }
2104
ba6802de 2105 if(mb_type & (mb_type-1)){ // more than 1 MB type possible
91029be7 2106 int next_block=0;
7f2fe444 2107 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
1f0cd30f
MN
2108
2109 copy_context_before_encode(&backup_s, s, -1);
7f2fe444
MN
2110 backup_s.pb= s->pb;
2111 best_s.data_partitioning= s->data_partitioning;
2112 if(s->data_partitioning){
2113 backup_s.pb2= s->pb2;
2114 backup_s.tex_pb= s->tex_pb;
2115 }
1f0cd30f 2116
ba6802de 2117 if(mb_type&MB_TYPE_INTER){
91029be7 2118 s->mv_dir = MV_DIR_FORWARD;
cf8039b2 2119 s->mv_type = MV_TYPE_16X16;
ba6802de 2120 s->mb_intra= 0;
9dbcbd92
MN
2121 s->mv[0][0][0] = s->p_mv_table[xy][0];
2122 s->mv[0][0][1] = s->p_mv_table[xy][1];
7f2fe444
MN
2123 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER, pb, pb2, tex_pb,
2124 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
de6d9b64 2125 }
1f0cd30f 2126 if(mb_type&MB_TYPE_INTER4V){
91029be7 2127 s->mv_dir = MV_DIR_FORWARD;
cf8039b2
MN
2128 s->mv_type = MV_TYPE_8X8;
2129 s->mb_intra= 0;
2130 for(i=0; i<4; i++){
2131 s->mv[0][i][0] = s->motion_val[s->block_index[i]][0];
2132 s->mv[0][i][1] = s->motion_val[s->block_index[i]][1];
2133 }
7f2fe444
MN
2134 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER4V, pb, pb2, tex_pb,
2135 &dmin, &next_block, 0, 0);
91029be7
MN
2136 }
2137 if(mb_type&MB_TYPE_FORWARD){
91029be7
MN
2138 s->mv_dir = MV_DIR_FORWARD;
2139 s->mv_type = MV_TYPE_16X16;
2140 s->mb_intra= 0;
2141 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2142 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
7f2fe444
MN
2143 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_FORWARD, pb, pb2, tex_pb,
2144 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
91029be7
MN
2145 }
2146 if(mb_type&MB_TYPE_BACKWARD){
91029be7
MN
2147 s->mv_dir = MV_DIR_BACKWARD;
2148 s->mv_type = MV_TYPE_16X16;
2149 s->mb_intra= 0;
2150 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2151 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
7f2fe444
MN
2152 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2153 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
91029be7
MN
2154 }
2155 if(mb_type&MB_TYPE_BIDIR){
91029be7
MN
2156 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2157 s->mv_type = MV_TYPE_16X16;
2158 s->mb_intra= 0;
2159 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2160 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2161 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2162 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
7f2fe444
MN
2163 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_BIDIR, pb, pb2, tex_pb,
2164 &dmin, &next_block, 0, 0);
91029be7
MN
2165 }
2166 if(mb_type&MB_TYPE_DIRECT){
91029be7
MN
2167 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2168 s->mv_type = MV_TYPE_16X16; //FIXME
2169 s->mb_intra= 0;
2170 s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
2171 s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
2172 s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
2173 s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
7f2fe444
MN
2174 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_DIRECT, pb, pb2, tex_pb,
2175 &dmin, &next_block, s->b_direct_mv_table[xy][0], s->b_direct_mv_table[xy][1]);
cf8039b2 2176 }
ba6802de 2177 if(mb_type&MB_TYPE_INTRA){
91029be7 2178 s->mv_dir = MV_DIR_FORWARD;
cf8039b2 2179 s->mv_type = MV_TYPE_16X16;
ba6802de
MN
2180 s->mb_intra= 1;
2181 s->mv[0][0][0] = 0;
2182 s->mv[0][0][1] = 0;
7f2fe444
MN
2183 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTRA, pb, pb2, tex_pb,
2184 &dmin, &next_block, 0, 0);
1f0cd30f
MN
2185 /* force cleaning of ac/dc pred stuff if needed ... */
2186 if(s->h263_pred || s->h263_aic)
2187 s->mbintra_table[mb_x + mb_y*s->mb_width]=1;
cf8039b2 2188 }
1f0cd30f 2189 copy_context_after_encode(s, &best_s, -1);
7f2fe444
MN
2190
2191 pb_bits_count= get_bit_count(&s->pb);
2192 flush_put_bits(&s->pb);
2193 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2194 s->pb= backup_s.pb;
2195
2196 if(s->data_partitioning){
2197 pb2_bits_count= get_bit_count(&s->pb2);
2198 flush_put_bits(&s->pb2);
2199 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2200 s->pb2= backup_s.pb2;
2201
2202 tex_pb_bits_count= get_bit_count(&s->tex_pb);
2203 flush_put_bits(&s->tex_pb);
2204 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2205 s->tex_pb= backup_s.tex_pb;
2206 }
8b4c7dbc 2207 s->last_bits= get_bit_count(&s->pb);
de6d9b64 2208 } else {
9dbcbd92
MN
2209 int motion_x, motion_y;
2210 s->mv_type=MV_TYPE_16X16;
ba6802de 2211 // only one MB-Type possible
91029be7
MN
2212 switch(mb_type){
2213 case MB_TYPE_INTRA:
9dbcbd92 2214 s->mv_dir = MV_DIR_FORWARD;
ba6802de 2215 s->mb_intra= 1;
9dbcbd92
MN
2216 motion_x= s->mv[0][0][0] = 0;
2217 motion_y= s->mv[0][0][1] = 0;
91029be7
MN
2218 break;
2219 case MB_TYPE_INTER:
9dbcbd92
MN
2220 s->mv_dir = MV_DIR_FORWARD;
2221 s->mb_intra= 0;
2222 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2223 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
91029be7 2224 break;
7f2fe444
MN
2225 case MB_TYPE_INTER4V:
2226 s->mv_dir = MV_DIR_FORWARD;
2227 s->mv_type = MV_TYPE_8X8;
2228 s->mb_intra= 0;
2229 for(i=0; i<4; i++){
2230 s->mv[0][i][0] = s->motion_val[s->block_index[i]][0];
2231 s->mv[0][i][1] = s->motion_val[s->block_index[i]][1];
2232 }
2233 motion_x= motion_y= 0;
2234 break;
91029be7 2235 case MB_TYPE_DIRECT:
9dbcbd92
MN
2236 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2237 s->mb_intra= 0;
91029be7
MN
2238 motion_x=s->b_direct_mv_table[xy][0];
2239 motion_y=s->b_direct_mv_table[xy][1];
2240 s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
2241 s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
2242 s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
2243 s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
2244 break;
2245 case MB_TYPE_BIDIR:
9dbcbd92 2246 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
ba6802de 2247 s->mb_intra= 0;
9dbcbd92
MN
2248 motion_x=0;
2249 motion_y=0;
2250 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2251 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2252 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2253 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
91029be7
MN
2254 break;
2255 case MB_TYPE_BACKWARD:
9dbcbd92
MN
2256 s->mv_dir = MV_DIR_BACKWARD;
2257 s->mb_intra= 0;
2258 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2259 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
91029be7
MN
2260 break;
2261 case MB_TYPE_FORWARD:
9dbcbd92
MN
2262 s->mv_dir = MV_DIR_FORWARD;
2263 s->mb_intra= 0;
2264 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2265 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2266// printf(" %d %d ", motion_x, motion_y);
91029be7
MN
2267 break;
2268 default:
9dbcbd92
MN
2269 motion_x=motion_y=0; //gcc warning fix
2270 printf("illegal MB type\n");
ba6802de 2271 }
9dbcbd92 2272 encode_mb(s, motion_x, motion_y);
de6d9b64 2273 }
91029be7
MN
2274 /* clean the MV table in IPS frames for direct mode in B frames */
2275 if(s->mb_intra /* && I,P,S_TYPE */){
2276 s->p_mv_table[xy][0]=0;
2277 s->p_mv_table[xy][1]=0;
2278 }
de6d9b64 2279
21af69f7 2280 MPV_decode_mb(s, s->block);
7f2fe444 2281//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_width, get_bit_count(&s->pb));
de6d9b64 2282 }
17592475
MN
2283
2284
81401c1f
J
2285 /* Obtain average GOB size for RTP */
2286 if (s->rtp_mode) {
2287 if (!mb_y)
17592475 2288 s->mb_line_avgsize = pbBufPtr(&s->pb) - s->ptr_last_mb_line;
81401c1f 2289 else if (!(mb_y % s->gob_index)) {
17592475
MN
2290 s->mb_line_avgsize = (s->mb_line_avgsize + pbBufPtr(&s->pb) - s->ptr_last_mb_line) >> 1;
2291 s->ptr_last_mb_line = pbBufPtr(&s->pb);
81401c1f
J
2292 }
2293 //fprintf(stderr, "\nMB line: %d\tSize: %u\tAvg. Size: %u", s->mb_y,
2294 // (s->pb.buf_ptr - s->ptr_last_mb_line), s->mb_line_avgsize);
7f2fe444 2295 if(s->codec_id!=CODEC_ID_MPEG4) s->first_slice_line = 0; //FIXME clean
81401c1f 2296 }
de6d9b64 2297 }
ba6802de 2298 emms_c();
098eefe1 2299
7f2fe444
MN
2300 if(s->codec_id==CODEC_ID_MPEG4 && s->data_partitioning && s->pict_type!=B_TYPE)
2301 ff_mpeg4_merge_partitions(s);
2302
2303 if (s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
ae40484c
MN
2304 msmpeg4_encode_ext_header(s);
2305
7f2fe444
MN
2306 if(s->codec_id==CODEC_ID_MPEG4)
2307 ff_mpeg4_stuffing(&s->pb);
2308
644d98a4
J
2309 //if (s->gob_number)
2310 // fprintf(stderr,"\nNumber of GOB: %d", s->gob_number);
81401c1f
J
2311
2312 /* Send the last GOB if RTP */
2313 if (s->rtp_mode) {
2314 flush_put_bits(&s->pb);
17592475 2315 pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
81401c1f
J
2316 /* Call the RTP callback to send the last GOB */
2317 if (s->rtp_callback)
2318 s->rtp_callback(s->ptr_lastgob, pdif, s->gob_number);
17592475 2319 s->ptr_lastgob = pbBufPtr(&s->pb);
81401c1f
J
2320 //fprintf(stderr,"\nGOB: %2d size: %d (last)", s->gob_number, pdif);
2321 }
de6d9b64
FB
2322}
2323
2f349de2 2324static int dct_quantize_c(MpegEncContext *s,
de6d9b64 2325 DCTELEM *block, int n,
d7e9533a 2326 int qscale, int *overflow)
de6d9b64
FB
2327{
2328 int i, j, level, last_non_zero, q;
2329 const int *qmat;
d7e9533a
MN
2330 int bias;
2331 int max=0;
2332 unsigned int threshold1, threshold2;
7f2fe444 2333
de6d9b64
FB
2334 av_fdct (block);
2335
1a565432
FB
2336 /* we need this permutation so that we correct the IDCT
2337 permutation. will be moved into DCT code */
2338 block_permute(block);
2339
de6d9b64 2340 if (s->mb_intra) {
ef5b1b5a
J
2341 if (!s->h263_aic) {
2342 if (n < 4)
2343 q = s->y_dc_scale;
2344 else
2345 q = s->c_dc_scale;
2346 q = q << 3;
2347 } else
2348 /* For AIC we skip quant/dequant of INTRADC */
2349 q = 1 << 3;
2350
de6d9b64
FB
2351 /* note: block[0] is assumed to be positive */
2352 block[0] = (block[0] + (q >> 1)) / q;
2353 i = 1;
2354 last_non_zero = 0;
d7e9533a
MN
2355 qmat = s->q_intra_matrix[qscale];
2356 bias= s->intra_quant_bias<<(QMAT_SHIFT - 3 - QUANT_BIAS_SHIFT);
de6d9b64
FB
2357 } else {
2358 i = 0;
2359 last_non_zero = -1;
d7e9533a
MN
2360 qmat = s->q_inter_matrix[qscale];
2361 bias= s->inter_quant_bias<<(QMAT_SHIFT - 3 - QUANT_BIAS_SHIFT);
de6d9b64 2362 }
d7e9533a
MN
2363 threshold1= (1<<(QMAT_SHIFT - 3)) - bias - 1;
2364 threshold2= threshold1<<1;
de6d9b64
FB
2365
2366 for(;i<64;i++) {
2367 j = zigzag_direct[i];
2368 level = block[j];
2369 level = level * qmat[j];
de6d9b64 2370
d7e9533a
MN
2371// if( bias+level >= (1<<(QMAT_SHIFT - 3))
2372// || bias-level >= (1<<(QMAT_SHIFT - 3))){
2373 if(((unsigned)(level+threshold1))>threshold2){
2374 if(level>0){
2375 level= (bias + level)>>(QMAT_SHIFT - 3);
2376 block[j]= level;
2377 }else{
2378 level= (bias - level)>>(QMAT_SHIFT - 3);
2379 block[j]= -level;
2380 }
2381 max |=level;
de6d9b64 2382 last_non_zero = i;
d7e9533a
MN
2383 }else{
2384 block[j]=0;
de6d9b64
FB
2385 }
2386 }
d7e9533a
MN
2387 *overflow= s->max_qcoeff < max; //overflow might have happend
2388
de6d9b64
FB
2389 return last_non_zero;
2390}
2391
21af69f7
FB
2392static void dct_unquantize_mpeg1_c(MpegEncContext *s,
2393 DCTELEM *block, int n, int qscale)
de6d9b64 2394{
badaf88e 2395 int i, level, nCoeffs;
de6d9b64
FB
2396 const UINT16 *quant_matrix;
2397
badaf88e
MN
2398 if(s->alternate_scan) nCoeffs= 64;
2399 else nCoeffs= s->block_last_index[n]+1;
2400
de6d9b64
FB
2401 if (s->mb_intra) {
2402 if (n < 4)
2403 block[0] = block[0] * s->y_dc_scale;
2404 else
2405 block[0] = block[0] * s->c_dc_scale;
de6d9b64
FB
2406 /* XXX: only mpeg1 */
2407 quant_matrix = s->intra_matrix;
badaf88e
MN
2408 for(i=1;i<nCoeffs;i++) {
2409 int j= zigzag_direct[i];
2410 level = block[j];
de6d9b64
FB
2411 if (level) {
2412 if (level < 0) {
2413 level = -level;
badaf88e 2414 level = (int)(level * qscale * quant_matrix[j]) >> 3;
de6d9b64
FB
2415 level = (level - 1) | 1;
2416 level = -level;
2417 } else {
badaf88e 2418 level = (int)(level * qscale * quant_matrix[j]) >> 3;
de6d9b64
FB
2419 level = (level - 1) | 1;
2420 }
2421#ifdef PARANOID
2422 if (level < -2048 || level > 2047)
2423 fprintf(stderr, "unquant error %d %d\n", i, level);
2424#endif
badaf88e 2425 block[j] = level;
de6d9b64
FB
2426 }
2427 }
2428 } else {
2429 i = 0;
d7e9533a 2430 quant_matrix = s->inter_matrix;
d2b3c3d7 2431 for(;i<nCoeffs;i++) {
badaf88e
MN
2432 int j= zigzag_direct[i];
2433 level = block[j];
de6d9b64
FB
2434 if (level) {
2435 if (level < 0) {
2436 level = -level;
2437 level = (((level << 1) + 1) * qscale *
badaf88e 2438 ((int) (quant_matrix[j]))) >> 4;
de6d9b64
FB
2439 level = (level - 1) | 1;
2440 level = -level;
2441 } else {
2442 level = (((level << 1) + 1) * qscale *
badaf88e 2443 ((int) (quant_matrix[j]))) >> 4;
de6d9b64
FB
2444 level = (level - 1) | 1;
2445 }
2446#ifdef PARANOID
2447 if (level < -2048 || level > 2047)
2448 fprintf(stderr, "unquant error %d %d\n", i, level);
2449#endif
badaf88e 2450 block[j] = level;
de6d9b64
FB
2451 }
2452 }
2453 }
2454}
21af69f7 2455
9dbf1ddd
MN
2456static void dct_unquantize_mpeg2_c(MpegEncContext *s,
2457 DCTELEM *block, int n, int qscale)
2458{
2459 int i, level, nCoeffs;
2460 const UINT16 *quant_matrix;
2461
2462 if(s->alternate_scan) nCoeffs= 64;
2463 else nCoeffs= s->block_last_index[n]+1;
2464
2465 if (s->mb_intra) {
2466 if (n < 4)
2467 block[0] = block[0] * s->y_dc_scale;
2468 else
2469 block[0] = block[0] * s->c_dc_scale;
2470 quant_matrix = s->intra_matrix;
2471 for(i=1;i<nCoeffs;i++) {
2472 int j= zigzag_direct[i];
2473 level = block[j];
2474 if (level) {
2475 if (level < 0) {
2476 level = -level;
2477 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2478 level = -level;
2479 } else {
2480 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2481 }
2482#ifdef PARANOID
2483 if (level < -2048 || level > 2047)
2484 fprintf(stderr, "unquant error %d %d\n", i, level);
2485#endif
2486 block[j] = level;
2487 }
2488 }
2489 } else {
2490 int sum=-1;
2491 i = 0;
d7e9533a 2492 quant_matrix = s->inter_matrix;
9dbf1ddd
MN
2493 for(;i<nCoeffs;i++) {
2494 int j= zigzag_direct[i];
2495 level = block[j];
2496 if (level) {
2497 if (level < 0) {
2498 level = -level;
2499 level = (((level << 1) + 1) * qscale *
2500 ((int) (quant_matrix[j]))) >> 4;
2501 level = -level;
2502 } else {
2503 level = (((level << 1) + 1) * qscale *
2504 ((int) (quant_matrix[j]))) >> 4;
2505 }
2506#ifdef PARANOID
2507 if (level < -2048 || level > 2047)
2508 fprintf(stderr, "unquant error %d %d\n", i, level);
2509#endif
2510 block[j] = level;
2511 sum+=level;
2512 }
2513 }
2514 block[63]^=sum&1;
2515 }
2516}
2517
2518
21af69f7
FB
2519static void dct_unquantize_h263_c(MpegEncContext *s,
2520 DCTELEM *block, int n, int qscale)
2521{
2522 int i, level, qmul, qadd;
badaf88e 2523 int nCoeffs;
9e15ad28 2524
21af69f7 2525 if (s->mb_intra) {
9e15ad28
J
2526 if (!s->h263_aic) {
2527 if (n < 4)
2528 block[0] = block[0] * s->y_dc_scale;
2529 else
2530 block[0] = block[0] * s->c_dc_scale;
2531 }
21af69f7 2532 i = 1;
badaf88e 2533 nCoeffs= 64; //does not allways use zigzag table
21af69f7
FB
2534 } else {
2535 i = 0;
badaf88e 2536 nCoeffs= zigzag_end[ s->block_last_index[n] ];
21af69f7
FB
2537 }
2538
2539 qmul = s->qscale << 1;
d140623f
J
2540 if (s->h263_aic && s->mb_intra)
2541 qadd = 0;
2542 else
2543 qadd = (s->qscale - 1) | 1;
21af69f7 2544
badaf88e 2545 for(;i<nCoeffs;i++) {
21af69f7
FB
2546 level = block[i];
2547 if (level) {
2548 if (level < 0) {
2549 level = level * qmul - qadd;
2550 } else {
2551 level = level * qmul + qadd;
2552 }
2553#ifdef PARANOID
2554 if (level < -2048 || level > 2047)
2555 fprintf(stderr, "unquant error %d %d\n", i, level);
2556#endif
2557 block[i] = level;
2558 }
2559 }
2560}
de6d9b64 2561
7f2fe444
MN
2562static void remove_ac(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int mb_x, int mb_y)
2563{
2564 int dc, dcb, dcr, y, i;
2565 for(i=0; i<4; i++){
2566 dc= s->dc_val[0][mb_x*2+1 + (i&1) + (mb_y*2+1 + (i>>1))*(s->mb_width*2+2)];
2567 for(y=0; y<8; y++){
2568 int x;
2569 for(x=0; x<8; x++){
2570 dest_y[x + (i&1)*8 + (y + (i>>1)*8)*s->linesize]= dc/8;
2571 }
2572 }
2573 }
2574 dcb = s->dc_val[1][mb_x+1 + (mb_y+1)*(s->mb_width+2)];
2575 dcr= s->dc_val[2][mb_x+1 + (mb_y+1)*(s->mb_width+2)];
2576 for(y=0; y<8; y++){
2577 int x;
2578 for(x=0; x<8; x++){
0fd90455
MN
2579 dest_cb[x + y*(s->uvlinesize)]= dcb/8;
2580 dest_cr[x + y*(s->uvlinesize)]= dcr/8;
7f2fe444
MN
2581 }
2582 }
2583}
2584
2585/**
2586 * will conceal past errors, and allso drop b frames if needed
2587 *
2588 */
2589void ff_conceal_past_errors(MpegEncContext *s, int unknown_pos)
2590{
2591 int mb_x= s->mb_x;
2592 int mb_y= s->mb_y;
2593 int mb_dist=0;
2594 int i, intra_count=0, inter_count=0;
2595 int intra_conceal= s->msmpeg4_version ? 50 : 50; //FIXME finetune
2596 int inter_conceal= s->msmpeg4_version ? 50 : 50;
2597
2598 // for last block
2599 if(mb_x>=s->mb_width) mb_x= s->mb_width -1;
2600 if(mb_y>=s->mb_height) mb_y= s->mb_height-1;
2601
2602 if(s->decoding_error==0 && unknown_pos){
2603 if(s->data_partitioning && s->pict_type!=B_TYPE)
2604 s->decoding_error= DECODING_AC_LOST;
2605 else
2606 s->decoding_error= DECODING_DESYNC;
2607 }
2608
2609 if(s->decoding_error==DECODING_DESYNC && s->pict_type!=B_TYPE) s->next_p_frame_damaged=1;
2610
2611 for(i=mb_x + mb_y*s->mb_width; i>=0; i--){
2612 if(s->mbintra_table[i]) intra_count++;
2613 else inter_count++;
2614 }
2615
2616 if(s->decoding_error==DECODING_AC_LOST){
2617 intra_conceal*=2;
2618 inter_conceal*=2;
2619 }else if(s->decoding_error==DECODING_ACDC_LOST){
2620 intra_conceal*=2;
2621 inter_conceal*=2;
2622 }
2623
2624 if(unknown_pos && (intra_count<inter_count)){
2625 intra_conceal= inter_conceal= s->mb_num;
2626// printf("%d %d\n",intra_count, inter_count);
2627 }
2628
2629 fprintf(stderr, "concealing errors\n");
2630
2631 /* for all MBs from the current one back until the last resync marker */
2632 for(; mb_y>=0 && mb_y>=s->resync_mb_y; mb_y--){
2633 for(; mb_x>=0; mb_x--){
2634 uint8_t *dest_y = s->current_picture[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
0fd90455
MN
2635 uint8_t *dest_cb = s->current_picture[1] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
2636 uint8_t *dest_cr = s->current_picture[2] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
7f2fe444
MN
2637 int mb_x_backup= s->mb_x; //FIXME pass xy to mpeg_motion
2638 int mb_y_backup= s->mb_y;
2639 s->mb_x=mb_x;
2640 s->mb_y=mb_y;
2641 if(s->mbintra_table[mb_y*s->mb_width + mb_x] && mb_dist<intra_conceal){
2642 if(s->decoding_error==DECODING_AC_LOST){
2643 remove_ac(s, dest_y, dest_cb, dest_cr, mb_x, mb_y);
2644// printf("remove ac to %d %d\n", mb_x, mb_y);
2645 }else{
2646 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
2647 s->last_picture, 0, 0, put_pixels_tab,
2648 0/*mx*/, 0/*my*/, 16);
2649 }
2650 }
2651 else if(!s->mbintra_table[mb_y*s->mb_width + mb_x] && mb_dist<inter_conceal){
2652 int mx=0;
2653 int my=0;
2654
2655 if(s->decoding_error!=DECODING_DESYNC){
2656 int xy= mb_x*2+1 + (mb_y*2+1)*(s->mb_width*2+2);
2657 mx= s->motion_val[ xy ][0];
2658 my= s->motion_val[ xy ][1];
2659 }
2660
2661 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
2662 s->last_picture, 0, 0, put_pixels_tab,
2663 mx, my, 16);
2664 }
2665 s->mb_x= mb_x_backup;
2666 s->mb_y= mb_y_backup;
2667
2668 if(mb_x== s->resync_mb_x && mb_y== s->resync_mb_y) return;
2669 if(!s->mbskip_table[mb_x + mb_y*s->mb_width]) mb_dist++;
2670 }
2671 mb_x=s->mb_width-1;
2672 }
2673}
2674
de6d9b64
FB
2675AVCodec mpeg1video_encoder = {
2676 "mpeg1video",
2677 CODEC_TYPE_VIDEO,
2678 CODEC_ID_MPEG1VIDEO,
2679 sizeof(MpegEncContext),
2680 MPV_encode_init,
2681 MPV_encode_picture,
2682 MPV_encode_end,
2683};
2684
2685AVCodec h263_encoder = {
2686 "h263",
2687 CODEC_TYPE_VIDEO,
2688 CODEC_ID_H263,
2689 sizeof(MpegEncContext),
2690 MPV_encode_init,
2691 MPV_encode_picture,
2692 MPV_encode_end,
2693};
2694
2695AVCodec h263p_encoder = {
2696 "h263p",
2697 CODEC_TYPE_VIDEO,
2698 CODEC_ID_H263P,
2699 sizeof(MpegEncContext),
2700 MPV_encode_init,
2701 MPV_encode_picture,
2702 MPV_encode_end,
2703};
2704
2705AVCodec rv10_encoder = {
2706 "rv10",
2707 CODEC_TYPE_VIDEO,
2708 CODEC_ID_RV10,
2709 sizeof(MpegEncContext),
2710 MPV_encode_init,
2711 MPV_encode_picture,
2712 MPV_encode_end,
2713};
2714
2715AVCodec mjpeg_encoder = {
2716 "mjpeg",
2717 CODEC_TYPE_VIDEO,
2718 CODEC_ID_MJPEG,
2719 sizeof(MpegEncContext),
2720 MPV_encode_init,
2721 MPV_encode_picture,
2722 MPV_encode_end,
2723};
2724
58f26ba9
FB
2725AVCodec mpeg4_encoder = {
2726 "mpeg4",
de6d9b64 2727 CODEC_TYPE_VIDEO,
58f26ba9 2728 CODEC_ID_MPEG4,
de6d9b64
FB
2729 sizeof(MpegEncContext),
2730 MPV_encode_init,
2731 MPV_encode_picture,
2732 MPV_encode_end,
2733};
2734
84afee34
MN
2735AVCodec msmpeg4v1_encoder = {
2736 "msmpeg4v1",
2737 CODEC_TYPE_VIDEO,
2738 CODEC_ID_MSMPEG4V1,
2739 sizeof(MpegEncContext),
2740 MPV_encode_init,
2741 MPV_encode_picture,
2742 MPV_encode_end,
2743};
2744
2745AVCodec msmpeg4v2_encoder = {
2746 "msmpeg4v2",
2747 CODEC_TYPE_VIDEO,
2748 CODEC_ID_MSMPEG4V2,
2749 sizeof(MpegEncContext),
2750 MPV_encode_init,
2751 MPV_encode_picture,
2752 MPV_encode_end,
2753};
2754
2755AVCodec msmpeg4v3_encoder = {
de6d9b64
FB
2756 "msmpeg4",
2757 CODEC_TYPE_VIDEO,
84afee34 2758 CODEC_ID_MSMPEG4V3,
de6d9b64
FB
2759 sizeof(MpegEncContext),
2760 MPV_encode_init,
2761 MPV_encode_picture,
2762 MPV_encode_end,
2763};
f5957f3f
MN
2764
2765AVCodec wmv1_encoder = {
2766 "wmv1",
2767 CODEC_TYPE_VIDEO,
2768 CODEC_ID_WMV1,
2769 sizeof(MpegEncContext),
2770 MPV_encode_init,
2771 MPV_encode_picture,
2772 MPV_encode_end,
2773};
2774
2775AVCodec wmv2_encoder = {
2776 "wmv2",
2777 CODEC_TYPE_VIDEO,
2778 CODEC_ID_WMV2,
2779 sizeof(MpegEncContext),
2780 MPV_encode_init,
2781 MPV_encode_picture,
2782 MPV_encode_end,
2783};