rtjpeg: Add ff_ prefix to nonstatic symbols
[libav.git] / libavcodec / mpegvideo.h
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1/*
2 * Generic DCT based hybrid video encoder
406792e7 3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
8f2ab833 4 * Copyright (c) 2002-2004 Michael Niedermayer
de6d9b64 5 *
2912e87a 6 * This file is part of Libav.
b78e7197 7 *
2912e87a 8 * Libav is free software; you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
b78e7197 11 * version 2.1 of the License, or (at your option) any later version.
de6d9b64 12 *
2912e87a 13 * Libav is distributed in the hope that it will be useful,
de6d9b64 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
de6d9b64 17 *
ff4ec49e 18 * You should have received a copy of the GNU Lesser General Public
2912e87a 19 * License along with Libav; if not, write to the Free Software
5509bffa 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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21 */
22
983e3246 23/**
ba87f080 24 * @file
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25 * mpegvideo header.
26 */
115329f1 27
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28#ifndef AVCODEC_MPEGVIDEO_H
29#define AVCODEC_MPEGVIDEO_H
cd4af68a 30
657ccb5a 31#include "avcodec.h"
5c91a675 32#include "dsputil.h"
9106a698 33#include "get_bits.h"
b2755007 34#include "put_bits.h"
0de9926f 35#include "ratecontrol.h"
4067d81b 36#include "parser.h"
3bfe9260 37#include "mpeg12data.h"
6d934615 38#include "rl.h"
5c91a675 39
160d679c 40#define FRAME_SKIPPED 100 ///< return value for header parsers if frame is not coded
eec1c6b9 41
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42enum OutputFormat {
43 FMT_MPEG1,
c6148de2 44 FMT_H261,
de6d9b64 45 FMT_H263,
115329f1 46 FMT_MJPEG,
0da71265 47 FMT_H264,
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48};
49
50#define MPEG_BUF_SIZE (16 * 1024)
51
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52#define QMAT_SHIFT_MMX 16
53#define QMAT_SHIFT 22
2f349de2 54
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55#define MAX_FCODE 7
56#define MAX_MV 2048
1e491e29 57
e8b78541 58#define MAX_THREADS 16
9c3d33d6 59
5cbb0e70 60#define MAX_PICTURE_COUNT 32
45870f57 61
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62#define ME_MAP_SIZE 64
63#define ME_MAP_SHIFT 3
64#define ME_MAP_MV_BITS 11
65
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66#define MAX_MB_BYTES (30*16*16*3/8 + 120)
67
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68#define INPLACE_OFFSET 16
69
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70/* Start codes. */
71#define SEQ_END_CODE 0x000001b7
72#define SEQ_START_CODE 0x000001b3
73#define GOP_START_CODE 0x000001b8
74#define PICTURE_START_CODE 0x00000100
75#define SLICE_MIN_START_CODE 0x00000101
76#define SLICE_MAX_START_CODE 0x000001af
77#define EXT_START_CODE 0x000001b5
78#define USER_START_CODE 0x000001b2
79
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80struct MpegEncContext;
81
277f4827 82/**
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83 * Picture.
84 */
1e491e29 85typedef struct Picture{
657ccb5a 86 struct AVFrame f;
1e491e29 87
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88 /**
89 * halfpel luma planes.
90 */
91 uint8_t *interpolated[3];
5029a406 92 int8_t *qscale_table_base;
b40cd4e0 93 int16_t (*motion_val_base[2])[2];
7bc9090a 94 uint32_t *mb_type_base;
d0b53d05 95#define MB_TYPE_INTRA MB_TYPE_INTRA4x4 //default mb_type if there is just one type
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96#define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4)
97#define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16)
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98#define IS_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
99#define IS_INTRA(a) ((a)&7)
0da71265 100#define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8))
7bc9090a 101#define IS_SKIP(a) ((a)&MB_TYPE_SKIP)
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102#define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
103#define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED)
104#define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2)
7bc9090a 105#define IS_GMC(a) ((a)&MB_TYPE_GMC)
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106#define IS_16X16(a) ((a)&MB_TYPE_16x16)
107#define IS_16X8(a) ((a)&MB_TYPE_16x8)
108#define IS_8X16(a) ((a)&MB_TYPE_8x16)
109#define IS_8X8(a) ((a)&MB_TYPE_8x8)
110#define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused
111#define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused
112#define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused
113#define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused
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114#define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED)
115#define IS_QUANT(a) ((a)&MB_TYPE_QUANT)
0da71265 116#define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))
755bfeab 117#define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list)))) ///< does this mb use listX, note does not work if subMBs
b40cd4e0 118#define HAS_CBP(a) ((a)&MB_TYPE_CBP)
0da71265 119
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120 int field_poc[2]; ///< h264 top/bottom POC
121 int poc; ///< h264 frame POC
bcc3476c 122 int frame_num; ///< h264 frame_num (raw frame_num from slice header)
c173a088 123 int mmco_reset; ///< h264 MMCO_RESET set this 1. Reordering code must not mix pictures before and after MMCO_RESET.
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124 int pic_id; /**< h264 pic_num (short -> no wrap version of pic_num,
125 pic_num & max_pic_num; long -> long_pic_num) */
0da71265 126 int long_ref; ///< 1->long term reference 0->short term reference
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127 int ref_poc[2][2][16]; ///< h264 POCs of the frames used as reference (FIXME need per slice)
128 int ref_count[2][2]; ///< number of entries in ref_poc (FIXME need per slice)
48e025e5 129 int mbaff; ///< h264 1 -> MBAFF frame 0-> not MBAFF
da9cea77 130 int field_picture; ///< whether or not the picture was encoded in separate fields
0da71265 131
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132 int mb_var_sum; ///< sum of MB variance for current frame
133 int mc_mb_var_sum; ///< motion compensated MB variance for current frame
134 uint16_t *mb_var; ///< Table for MB variances
135 uint16_t *mc_mb_var; ///< Table for motion compensated MB variances
136 uint8_t *mb_mean; ///< Table for MB luminance
bb270c08 137 int32_t *mb_cmp_score; ///< Table for MB cmp scores, for mb decision FIXME remove
0d1e9246 138 int b_frame_score; /* */
6a9c8594 139 struct MpegEncContext *owner2; ///< pointer to the MpegEncContext that allocated this picture
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140} Picture;
141
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142/**
143 * Motion estimation context.
144 */
1457ab52 145typedef struct MotionEstContext{
1f202b0d 146 AVCodecContext *avctx;
115329f1 147 int skip; ///< set if ME is skipped for the current MB
755bfeab 148 int co_located_mv[4][2]; ///< mv from last P-frame for direct mode ME
1457ab52 149 int direct_basis_mv[4][2];
755bfeab 150 uint8_t *scratchpad; ///< data area for the ME algo, so that the ME does not need to malloc/free
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151 uint8_t *best_mb;
152 uint8_t *temp_mb[2];
153 uint8_t *temp;
154 int best_bits;
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155 uint32_t *map; ///< map to avoid duplicate evaluations
156 uint32_t *score_map; ///< map to store the scores
cb668476 157 unsigned map_generation;
826f429a 158 int pre_penalty_factor;
adbfc605 159 int penalty_factor; /**< an estimate of the bits required to
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160 code a given mv value, e.g. (1,0) takes
161 more bits than (0,0). We have to
162 estimate whether any reduction in
163 residual is worth the extra bits. */
1457ab52 164 int sub_penalty_factor;
67725183 165 int mb_penalty_factor;
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166 int flags;
167 int sub_flags;
168 int mb_flags;
115329f1 169 int pre_pass; ///< = 1 for the pre pass
826f429a 170 int dia_size;
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171 int xmin;
172 int xmax;
173 int ymin;
174 int ymax;
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175 int pred_x;
176 int pred_y;
177 uint8_t *src[4][4];
178 uint8_t *ref[4][4];
179 int stride;
180 int uvstride;
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181 /* temp variables for picture complexity calculation */
182 int mc_mb_var_sum_temp;
183 int mb_var_sum_temp;
184 int scene_change_score;
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185/* cmp, chroma_cmp;*/
186 op_pixels_func (*hpel_put)[4];
187 op_pixels_func (*hpel_avg)[4];
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188 qpel_mc_func (*qpel_put)[16];
189 qpel_mc_func (*qpel_avg)[16];
115329f1 190 uint8_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV
2750b827 191 uint8_t *current_mv_penalty;
1457ab52 192 int (*sub_motion_search)(struct MpegEncContext * s,
bb270c08 193 int *mx_ptr, int *my_ptr, int dmin,
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194 int src_index, int ref_index,
195 int size, int h);
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196}MotionEstContext;
197
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198/**
199 * MpegEncContext.
200 */
de6d9b64 201typedef struct MpegEncContext {
297d9cb3 202 AVClass *class;
58f26ba9 203 struct AVCodecContext *avctx;
de6d9b64 204 /* the following parameters must be initialized before encoding */
115329f1 205 int width, height;///< picture size. must be a multiple of 16
de6d9b64 206 int gop_size;
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207 int intra_only; ///< if true, only intra pictures are generated
208 int bit_rate; ///< wanted bit rate
209 enum OutputFormat out_format; ///< output format
210 int h263_pred; ///< use mpeg4/h263 ac/dc predictions
91ba181a 211 int pb_frame; ///< PB frame mode (0 = none, 1 = base, 2 = improved)
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212
213/* the following codec id fields are deprecated in favor of codec_id */
115329f1 214 int h263_plus; ///< h263 plus headers
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215 int h263_flv; ///< use flv h263 header
216
0f242af2 217 enum CodecID codec_id; /* see CODEC_ID_xxx */
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218 int fixed_qscale; ///< fixed qscale if non zero
219 int encoding; ///< true if we are encoding (vs decoding)
220 int flags; ///< AVCodecContext.flags (HQ, MV4, ...)
303e50e6 221 int flags2; ///< AVCodecContext.flags2
115329f1 222 int max_b_frames; ///< max number of b-frames for encoding
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223 int luma_elim_threshold;
224 int chroma_elim_threshold;
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225 int strict_std_compliance; ///< strictly follow the std (MPEG4, ...)
226 int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
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227 int codec_tag; ///< internal codec_tag upper case converted from avctx codec_tag
228 int stream_codec_tag; ///< internal stream_codec_tag upper case converted from avctx stream_codec_tag
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229 /* the following fields are managed internally by the encoder */
230
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231 /* sequence parameters */
232 int context_initialized;
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233 int input_picture_number; ///< used to set pic->display_picture_number, should not be used for/by anything else
234 int coded_picture_number; ///< used to set pic->coded_picture_number, should not be used for/by anything else
1031fabd 235 int picture_number; //FIXME remove, unclear definition
115329f1 236 int picture_in_gop_number; ///< 0-> first pic in gop, ...
115329f1 237 int mb_width, mb_height; ///< number of MBs horizontally & vertically
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238 int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11
239 int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
240 int b4_stride; ///< 4*mb_width+1 used for some 4x4 block arrays to allow simple addressing
241 int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication)
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242 int mb_num; ///< number of MBs of a picture
243 int linesize; ///< line size, in bytes, may be different from width
244 int uvlinesize; ///< line size, for chroma in bytes, may be different from width
245 Picture *picture; ///< main picture buffer
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246 Picture **input_picture; ///< next pictures on display order for encoding
247 Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding
115329f1 248
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249 int y_dc_scale, c_dc_scale;
250 int ac_pred;
251 int block_last_index[12]; ///< last non zero coefficient in block
252 int h263_aic; ///< Advanded INTRA Coding (AIC)
253
254 /* scantables */
255 ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage
256 ScanTable intra_scantable;
257 ScanTable intra_h_scantable;
258 ScanTable intra_v_scantable;
259
260 /* WARNING: changes above this line require updates to hardcoded
261 * offsets used in asm. */
262
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263 int64_t user_specified_pts;///< last non zero pts from AVFrame which was passed into avcodec_encode_video()
264
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265 /** bit output */
266 PutBitContext pb;
267
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268 int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
269 int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
270 struct MpegEncContext *thread_context[MAX_THREADS];
881a5e04 271 int slice_context_count; ///< number of used thread_contexts
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272
273 /**
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274 * copy of the previous picture structure.
275 * note, linesize & data, might not match the previous picture (for field pictures)
276 */
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277 Picture last_picture;
278
279 /**
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280 * copy of the next picture structure.
281 * note, linesize & data, might not match the next picture (for field pictures)
282 */
283 Picture next_picture;
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284
285 /**
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286 * copy of the source picture structure for encoding.
287 * note, linesize & data, might not match the source picture (for field pictures)
288 */
289 Picture new_picture;
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290
291 /**
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292 * copy of the current picture structure.
293 * note, linesize & data, might not match the current picture (for field pictures)
294 */
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295 Picture current_picture; ///< buffer to store the decompressed current picture
296
b536d0aa 297 Picture *last_picture_ptr; ///< pointer to the previous picture.
115329f1 298 Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
b536d0aa 299 Picture *current_picture_ptr; ///< pointer to the current picture
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300 int picture_count; ///< number of allocated pictures (MAX_PICTURE_COUNT * avctx->thread_count)
301 int picture_range_start, picture_range_end; ///< the part of picture that this context can allocate in
02494787 302 uint8_t *visualization_buffer[3]; ///< temporary buffer vor MV visualization
115329f1 303 int last_dc[3]; ///< last DC values for MPEG1
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304 int16_t *dc_val_base;
305 int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
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306 const uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
307 const uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
332f9ac4 308 const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (h263)
137c8468 309 uint8_t *coded_block_base;
277f4827 310 uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
137c8468 311 int16_t (*ac_val_base)[16];
115329f1 312 int16_t (*ac_val[3])[16]; ///< used for for mpeg4 AC prediction, all 3 arrays must be continuous
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313 int mb_skipped; ///< MUST BE SET only during DECODING
314 uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
9dbcbd92 315 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
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316 uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
317 uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
318 uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
330deb75 319 uint8_t *edge_emu_buffer; ///< temporary buffer for if MVs point to out-of-frame data
bb628dae 320 uint8_t *rd_scratchpad; ///< scratchpad for rate distortion mb decision
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321 uint8_t *obmc_scratchpad;
322 uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers
de6d9b64 323
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324 int qscale; ///< QP
325 int chroma_qscale; ///< chroma QP
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326 unsigned int lambda; ///< lagrange multipler used in rate distortion
327 unsigned int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
158c7f05 328 int *lambda_table;
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329 int adaptive_quant; ///< use adaptive quantization
330 int dquant; ///< qscale difference to prev qscale
975a1447 331 int pict_type; ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
14e2a940 332 int last_pict_type; //FIXME removes
115329f1 333 int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol
14e2a940 334 int dropable;
de6d9b64 335 int frame_rate_index;
88e51e1f 336 int last_lambda_for[5]; ///< last lambda for a specific pict type
c52f5d66 337 int skipdct; ///< skip dct and code zero residual
5e5c247a 338
de6d9b64 339 /* motion compensation */
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340 int unrestricted_mv; ///< mv can point outside of the coded picture
341 int h263_long_vectors; ///< use horrible h263v1 long vector mode
277f4827 342
bb628dae 343 DSPContext dsp; ///< pointers for accelerated dsp functions
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344 int f_code; ///< forward MV resolution
345 int b_code; ///< backward MV resolution for B Frames (mpeg4)
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346 int16_t (*p_mv_table_base)[2];
347 int16_t (*b_forw_mv_table_base)[2];
348 int16_t (*b_back_mv_table_base)[2];
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349 int16_t (*b_bidir_forw_mv_table_base)[2];
350 int16_t (*b_bidir_back_mv_table_base)[2];
7bc9090a 351 int16_t (*b_direct_mv_table_base)[2];
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352 int16_t (*p_field_mv_table_base[2][2])[2];
353 int16_t (*b_field_mv_table_base[2][2][2])[2];
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354 int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) p-frame encoding
355 int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode b-frame encoding
356 int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode b-frame encoding
357 int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
358 int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
359 int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode b-frame encoding
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360 int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced p-frame encoding
361 int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced b-frame encoding
362 uint8_t (*p_field_select_table[2]);
363 uint8_t (*b_field_select_table[2][2]);
115329f1 364 int me_method; ///< ME algorithm
de6d9b64 365 int mv_dir;
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366#define MV_DIR_FORWARD 1
367#define MV_DIR_BACKWARD 2
277f4827 368#define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
de6d9b64 369 int mv_type;
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370#define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
371#define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV)
372#define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block
373#define MV_TYPE_FIELD 3 ///< 2 vectors, one per field
374#define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors
375 /**motion vectors for a macroblock
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376 first coordinate : 0 = forward 1 = backward
377 second " : depend on type
378 third " : 0 = x, 1 = y
379 */
380 int mv[2][4][2];
381 int field_select[2][2];
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382 int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4
383 uint8_t *fcode_tab; ///< smallest fcode needed for each MV
841f65f2 384 int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv
115329f1 385
1457ab52 386 MotionEstContext me;
de6d9b64 387
115329f1 388 int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
e42dba48 389 for b-frames rounding mode is always 0 */
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390
391 /* macroblock layer */
392 int mb_x, mb_y;
9b8709d1 393 int mb_skip_run;
de6d9b64 394 int mb_intra;
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395 uint16_t *mb_type; ///< Table for candidate MB types for encoding
396#define CANDIDATE_MB_TYPE_INTRA 0x01
397#define CANDIDATE_MB_TYPE_INTER 0x02
398#define CANDIDATE_MB_TYPE_INTER4V 0x04
160d679c 399#define CANDIDATE_MB_TYPE_SKIPPED 0x08
7bc9090a 400//#define MB_TYPE_GMC 0x10
7f2fe444 401
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402#define CANDIDATE_MB_TYPE_DIRECT 0x10
403#define CANDIDATE_MB_TYPE_FORWARD 0x20
404#define CANDIDATE_MB_TYPE_BACKWARD 0x40
405#define CANDIDATE_MB_TYPE_BIDIR 0x80
406
407#define CANDIDATE_MB_TYPE_INTER_I 0x100
408#define CANDIDATE_MB_TYPE_FORWARD_I 0x200
409#define CANDIDATE_MB_TYPE_BACKWARD_I 0x400
410#define CANDIDATE_MB_TYPE_BIDIR_I 0x800
4278e7a6 411
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412#define CANDIDATE_MB_TYPE_DIRECT0 0x1000
413
277f4827 414 int block_index[6]; ///< index to current MB in block based arrays with edges
4278e7a6 415 int block_wrap[6];
7d1c3fc1 416 uint8_t *dest[3];
115329f1 417
7bc9090a 418 int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride
4278e7a6 419
277f4827 420 /** matrix transmitted in the bitstream */
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421 uint16_t intra_matrix[64];
422 uint16_t chroma_intra_matrix[64];
423 uint16_t inter_matrix[64];
424 uint16_t chroma_inter_matrix[64];
1984f635 425#define QUANT_BIAS_SHIFT 8
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426 int intra_quant_bias; ///< bias for the quantizer
427 int inter_quant_bias; ///< bias for the quantizer
428 int min_qcoeff; ///< minimum encodable coefficient
429 int max_qcoeff; ///< maximum encodable coefficient
430 int ac_esc_length; ///< num of bits needed to encode the longest esc
477ab036
MN
431 uint8_t *intra_ac_vlc_length;
432 uint8_t *intra_ac_vlc_last_length;
433 uint8_t *inter_ac_vlc_length;
434 uint8_t *inter_ac_vlc_last_length;
67725183 435 uint8_t *luma_dc_vlc_length;
c442d75c 436#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
477ab036 437
2d974017 438 int coded_score[8];
f2f6134b 439
277f4827 440 /** precomputed matrix (combine qscale and DCT renorm) */
7e4995c3
MN
441 int (*q_intra_matrix)[64];
442 int (*q_inter_matrix)[64];
642ccefb
MN
443 /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
444 uint16_t (*q_intra_matrix16)[2][64];
445 uint16_t (*q_inter_matrix16)[2][64];
115329f1 446
821cb11f
MN
447 /* noise reduction */
448 int (*dct_error_sum)[64];
449 int dct_count[2];
450 uint16_t (*dct_offset)[64];
de6d9b64 451
277f4827 452 void *opaque; ///< private data for the user
de6d9b64
FB
453
454 /* bit rate control */
0c1a9eda 455 int64_t total_bits;
115329f1 456 int frame_bits; ///< bits used for the current frame
07506002 457 int next_lambda; ///< next lambda used for retrying to encode a frame
277f4827 458 RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
9cdd6a24 459
098eefe1
MN
460 /* statistics, used for 2-pass encoding */
461 int mv_bits;
462 int header_bits;
463 int i_tex_bits;
464 int p_tex_bits;
465 int i_count;
66370d3f
MN
466 int f_count;
467 int b_count;
098eefe1 468 int skip_count;
277f4827
MN
469 int misc_bits; ///< cbp, mb_type
470 int last_bits; ///< temp var used for calculating the above vars
115329f1 471
7f2fe444 472 /* error concealment / resync */
6a9c8594 473 int error_count, error_occurred;
115329f1
DB
474 uint8_t *error_status_table; ///< table of the error status of each MB
475#define VP_START 1 ///< current MB is the first after a resync marker
5bf2ac2b
LB
476#define ER_AC_ERROR 2
477#define ER_DC_ERROR 4
478#define ER_MV_ERROR 8
479#define ER_AC_END 16
480#define ER_DC_END 32
481#define ER_MV_END 64
115329f1 482
63ccd466
LB
483#define ER_MB_ERROR (ER_AC_ERROR|ER_DC_ERROR|ER_MV_ERROR)
484#define ER_MB_END (ER_AC_END|ER_DC_END|ER_MV_END)
485
115329f1
DB
486 int resync_mb_x; ///< x position of last resync marker
487 int resync_mb_y; ///< y position of last resync marker
488 GetBitContext last_resync_gb; ///< used to search for the next resync marker
277f4827 489 int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only)
115329f1 490 int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed b frames
5b22d6e1 491 int err_recognition;
115329f1 492
d7425f59 493 ParseContext parse_context;
098eefe1 494
102d3908 495 /* H.263 specific */
644d98a4 496 int gob_index;
dba019da 497 int obmc; ///< overlapped block motion compensation
9f0a705d 498 int showed_packed_warning; ///< flag for having shown the warning about divxs invalid b frames
115329f1 499
544286b3 500 /* H.263+ specific */
115329f1 501 int umvplus; ///< == H263+ && unrestricted_mv
ba58dabc
MN
502 int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
503 int h263_slice_structured;
dba019da 504 int alt_inter_vlc; ///< alternative inter vlc
68b94c35 505 int modified_quant;
115329f1 506 int loop_filter;
b056e73c 507 int custom_pcf;
115329f1 508
de6d9b64 509 /* mpeg4 specific */
115329f1 510 int time_increment_bits; ///< number of bits to represent the fractional part of time
9dbcbd92 511 int last_time_base;
115329f1
DB
512 int time_base; ///< time in seconds of last I,P,S Frame
513 int64_t time; ///< time of current frame
0c1a9eda 514 int64_t last_non_b_time;
115329f1
DB
515 uint16_t pp_time; ///< time distance between the last 2 p,s,i frames
516 uint16_t pb_time; ///< time distance between the last b and p,s,i frame
0c1a9eda 517 uint16_t pp_field_time;
115329f1 518 uint16_t pb_field_time; ///< like above, just for interlaced
1a565432
FB
519 int shape;
520 int vol_sprite_usage;
cc9ba006
MN
521 int sprite_width;
522 int sprite_height;
523 int sprite_left;
524 int sprite_top;
525 int sprite_brightness_change;
73c8e514 526 int num_sprite_warping_points;
44eb4951 527 int real_sprite_warping_points;
11b93979 528 uint16_t sprite_traj[4][2]; ///< sprite trajectory points
115329f1
DB
529 int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
530 int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
531 int sprite_shift[2]; ///< sprite shift [isChroma]
73c8e514 532 int mcsel;
1a565432 533 int quant_precision;
115329f1 534 int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
cc9ba006 535 int scalability;
0fd90455
MN
536 int hierachy_type;
537 int enhancement_type;
cc9ba006
MN
538 int new_pred;
539 int reduced_res_vop;
0da71265 540 int aspect_ratio_info; //FIXME remove
cc9ba006
MN
541 int sprite_warping_accuracy;
542 int low_latency_sprite;
115329f1
DB
543 int data_partitioning; ///< data partitioning flag from header
544 int partitioned_frame; ///< is current frame partitioned
545 int rvlc; ///< reversible vlc
277f4827 546 int resync_marker; ///< could this stream contain resync markers
115329f1 547 int low_delay; ///< no reordering needed / has no b-frames
1ff662cc 548 int vo_type;
115329f1
DB
549 int vol_control_parameters; ///< does the stream contain the low_delay flag, used to workaround buggy encoders
550 int intra_dc_threshold; ///< QP above whch the ac VLC should be used for intra dc
7f12a978 551 int use_intra_dc_vlc;
115329f1
DB
552 PutBitContext tex_pb; ///< used for data partitioned VOPs
553 PutBitContext pb2; ///< used for data partitioned VOPs
d930ef19 554 int mpeg_quant;
115329f1
DB
555 int t_frame; ///< time distance of first I -> B, used for interlaced b frames
556 int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4
289e8fd0
MN
557 int cplx_estimation_trash_i;
558 int cplx_estimation_trash_p;
559 int cplx_estimation_trash_b;
44eb4951
MN
560
561 /* divx specific, used to workaround (many) bugs in divx5 */
562 int divx_version;
563 int divx_build;
d5a21172 564 int divx_packed;
0c1a9eda 565 uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
eec1c6b9 566 int bitstream_buffer_size;
f038fe8b 567 unsigned int allocated_bitstream_buffer_size;
115329f1 568
7da71a5c 569 int xvid_build;
115329f1 570
4d2858de 571 /* lavc specific stuff, used to workaround bugs in libavcodec */
4d2858de 572 int lavc_build;
115329f1 573
de6d9b64 574 /* RV10 specific */
115329f1 575 int rv10_version; ///< RV10 version: 0 or 3
de6d9b64 576 int rv10_first_dc_coded[3];
94f28061 577 int orig_width, orig_height;
115329f1 578
de6d9b64
FB
579 /* MJPEG specific */
580 struct MJpegContext *mjpeg_ctx;
115329f1
DB
581 int mjpeg_vsample[3]; ///< vertical sampling factors, default = {2, 1, 1}
582 int mjpeg_hsample[3]; ///< horizontal sampling factors, default = {2, 1, 1}
de6d9b64
FB
583
584 /* MSMPEG4 specific */
585 int mv_table_index;
586 int rl_table_index;
587 int rl_chroma_table_index;
588 int dc_table_index;
589 int use_skip_mb_code;
115329f1
DB
590 int slice_height; ///< in macroblocks
591 int first_slice_line; ///< used in mpeg4 too to handle resync markers
ae40484c 592 int flipflop_rounding;
277f4827 593 int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
0151a6f5
MN
594 int per_mb_rl_table;
595 int esc3_level_length;
596 int esc3_run_length;
277f4827 597 /** [mb_intra][isChroma][level][run][last] */
6b460aa3 598 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
de0f2f4c 599 int inter_intra_pred;
1457ab52 600 int mspel;
0151a6f5 601
de6d9b64
FB
602 /* decompression specific */
603 GetBitContext gb;
604
1e491e29 605 /* Mpeg1 specific */
115329f1
DB
606 int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
607 int last_mv_dir; ///< last mv_dir, used for b frame encoding
0da71265 608 int broken_link; ///< no_output_of_prior_pics_flag
115329f1
DB
609 uint8_t *vbv_delay_ptr; ///< pointer to vbv_delay in the bitstream
610
7eb2d654 611 /* MPEG-2-specific - I wished not to have to support this mess. */
de6d9b64
FB
612 int progressive_sequence;
613 int mpeg_f_code[2][2];
614 int picture_structure;
615/* picture type */
616#define PICT_TOP_FIELD 1
617#define PICT_BOTTOM_FIELD 2
618#define PICT_FRAME 3
619
620 int intra_dc_precision;
621 int frame_pred_frame_dct;
622 int top_field_first;
623 int concealment_motion_vectors;
624 int q_scale_type;
625 int intra_vlc_format;
626 int alternate_scan;
627 int repeat_first_field;
628 int chroma_420_type;
5e5c247a
IK
629 int chroma_format;
630#define CHROMA_420 1
631#define CHROMA_422 2
632#define CHROMA_444 3
ffdff4d7
IK
633 int chroma_x_shift;//depend on pix_format, that depend on chroma_format
634 int chroma_y_shift;
5e5c247a 635
de6d9b64 636 int progressive_frame;
cd8c64e1 637 int full_pel[2];
de6d9b64 638 int interlaced_dct;
de6d9b64 639 int first_slice;
c3bf0288 640 int first_field; ///< is 1 for the first field of a field picture 0 otherwise
2c5e1efc 641 int drop_frame_timecode; ///< timecode is in drop frame format.
aed79007 642 int scan_offset; ///< reserve space for SVCD scan offset user data.
ba58dabc 643
644d98a4 644 /* RTP specific */
e4eadb4b 645 int rtp_mode;
115329f1 646
0c1a9eda 647 uint8_t *ptr_lastgob;
7eb2d654 648 int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped
21effaa4 649 DCTELEM (*pblocks[12])[64];
115329f1
DB
650
651 DCTELEM (*block)[64]; ///< points to one of the following blocks
702497f8 652 DCTELEM (*blocks)[8][64]; // for HQ mode we need to keep the best block
4d2858de
MN
653 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
654#define SLICE_OK 0
655#define SLICE_ERROR -1
c3bf0288
MN
656#define SLICE_END -2 ///<end marker found
657#define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
115329f1
DB
658
659 void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s,
67309e49 660 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 661 void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s,
67309e49 662 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 663 void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s,
67309e49 664 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 665 void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s,
d50635cd 666 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 667 void (*dct_unquantize_h263_intra)(struct MpegEncContext *s,
d50635cd 668 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 669 void (*dct_unquantize_h263_inter)(struct MpegEncContext *s,
d50635cd 670 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 671 void (*dct_unquantize_h261_intra)(struct MpegEncContext *s,
c6148de2 672 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 673 void (*dct_unquantize_h261_inter)(struct MpegEncContext *s,
c6148de2 674 DCTELEM *block/*align 16*/, int n, int qscale);
d50635cd
MN
675 void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
676 DCTELEM *block/*align 16*/, int n, int qscale);
677 void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
67309e49
MN
678 DCTELEM *block/*align 16*/, int n, int qscale);
679 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
3a87ac94 680 int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
783df5f3 681 void (*denoise_dct)(struct MpegEncContext *s, DCTELEM *block);
de6d9b64
FB
682} MpegEncContext;
683
6a9c8594
AS
684#define REBASE_PICTURE(pic, new_ctx, old_ctx) (pic ? \
685 (pic >= old_ctx->picture && pic < old_ctx->picture+old_ctx->picture_count ?\
686 &new_ctx->picture[pic - old_ctx->picture] : pic - (Picture*)old_ctx + (Picture*)new_ctx)\
687 : NULL)
4d2858de 688
3edcacde 689void MPV_decode_defaults(MpegEncContext *s);
de6d9b64
FB
690int MPV_common_init(MpegEncContext *s);
691void MPV_common_end(MpegEncContext *s);
ffdff4d7 692void MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]);
d6db1c9c 693int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
de6d9b64 694void MPV_frame_end(MpegEncContext *s);
1457ab52
MN
695int MPV_encode_init(AVCodecContext *avctx);
696int MPV_encode_end(AVCodecContext *avctx);
697int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
21af69f7 698void MPV_common_init_mmx(MpegEncContext *s);
e0580f8c 699void MPV_common_init_axp(MpegEncContext *s);
5917d17c 700void MPV_common_init_mmi(MpegEncContext *s);
a2fc0f6a 701void MPV_common_init_arm(MpegEncContext *s);
30c23dc0 702void MPV_common_init_altivec(MpegEncContext *s);
ac36d974 703void MPV_common_init_bfin(MpegEncContext *s);
7f2fe444 704void ff_clean_intra_table_entries(MpegEncContext *s);
640950c7 705void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
7a06ff14 706void ff_mpeg_flush(AVCodecContext *avctx);
0c9bbaec 707void ff_print_debug_info(MpegEncContext *s, AVFrame *pict);
191e8ca7 708void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
6a9c8594 709void ff_release_unused_pictures(MpegEncContext *s, int remove_current);
5f194811 710int ff_find_unused_picture(MpegEncContext *s, int shared);
821cb11f 711void ff_denoise_dct(MpegEncContext *s, DCTELEM *block);
c62c07d3 712void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
6a9c8594
AS
713int MPV_lowest_referenced_row(MpegEncContext *s, int dir);
714void MPV_report_decode_progress(MpegEncContext *s);
715int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src);
773375c3 716const uint8_t *avpriv_mpv_find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state);
bb174ff1 717void ff_set_qscale(MpegEncContext * s, int qscale);
59b571c1 718
46b4feec
MN
719void ff_er_frame_start(MpegEncContext *s);
720void ff_er_frame_end(MpegEncContext *s);
721void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status);
722
6180ade7 723int ff_dct_common_init(MpegEncContext *s);
69cea75f
BC
724void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
725 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
46b4feec 726
7d1c3fc1 727void ff_init_block_index(MpegEncContext *s);
8d2fc163 728void ff_copy_picture(Picture *dst, Picture *src);
4d2858de 729
a4a750d3 730/**
58c42af7
DB
731 * Allocate a Picture.
732 * The pixels are allocated/set by calling get_buffer() if shared = 0.
a4a750d3
BC
733 */
734int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared);
735
09a9b45e 736extern const enum PixelFormat ff_pixfmt_list_420[];
044f0296 737extern const enum PixelFormat ff_hwaccel_pixfmt_list_420[];
09a9b45e 738
4d2858de 739static inline void ff_update_block_index(MpegEncContext *s){
178fcca8
MN
740 const int block_size= 8>>s->avctx->lowres;
741
4d2858de
MN
742 s->block_index[0]+=2;
743 s->block_index[1]+=2;
744 s->block_index[2]+=2;
745 s->block_index[3]+=2;
746 s->block_index[4]++;
747 s->block_index[5]++;
178fcca8
MN
748 s->dest[0]+= 2*block_size;
749 s->dest[1]+= block_size;
750 s->dest[2]+= block_size;
4d2858de
MN
751}
752
4d2a4834 753static inline int get_bits_diff(MpegEncContext *s){
fe455f33 754 const int bits= put_bits_count(&s->pb);
4d2a4834
MN
755 const int last= s->last_bits;
756
757 s->last_bits = bits;
758
759 return bits - last;
760}
4d2858de 761
00f0564f
MR
762static inline int ff_h263_round_chroma(int x){
763 static const uint8_t h263_chroma_roundtab[16] = {
764 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
c3d0c11b 765 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
00f0564f 766 };
c3d0c11b 767 return h263_chroma_roundtab[x & 0xf] + (x >> 3);
00f0564f
MR
768}
769
de6d9b64 770/* motion_est.c */
9dbcbd92
MN
771void ff_estimate_p_frame_motion(MpegEncContext * s,
772 int mb_x, int mb_y);
773void ff_estimate_b_frame_motion(MpegEncContext * s,
774 int mb_x, int mb_y);
775int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
776void ff_fix_long_p_mvs(MpegEncContext * s);
bb198e19
MN
777void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
778 int16_t (*mv_table)[2], int f_code, int type, int truncate);
c192426f 779int ff_init_me(MpegEncContext *s);
f5fb6b34 780int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
4bdd3b76 781int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr,
115329f1
DB
782 int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2],
783 int ref_mv_scale, int size, int h);
4bdd3b76 784int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index,
155ec6ed 785 int ref_index, int size, int h, int add_rate);
4d2858de 786
de6d9b64 787/* mpeg12.c */
c26ae41d 788extern const uint8_t ff_mpeg1_dc_scale_table[128];
53f66cee 789extern const uint8_t * const ff_mpeg2_dc_scale_table[4];
de6d9b64 790
d6c8dcb8
MS
791void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
792void ff_mpeg1_encode_mb(MpegEncContext *s,
793 DCTELEM block[6][64],
794 int motion_x, int motion_y);
0151a6f5 795void ff_mpeg1_encode_init(MpegEncContext *s);
9b8709d1
MN
796void ff_mpeg1_encode_slice_header(MpegEncContext *s);
797void ff_mpeg1_clean_buffers(MpegEncContext *s);
a4c7a5ea 798int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s);
de6d9b64 799
c26ae41d 800extern const uint8_t ff_aic_dc_scale_table[32];
332f9ac4
MN
801extern const uint8_t ff_h263_chroma_qscale_table[32];
802extern const uint8_t ff_h263_loop_filter_strength[32];
68b94c35 803
5f6c92d4
MN
804/* h261.c */
805void ff_h261_loop_filter(MpegEncContext *s);
1c3990db
MN
806void ff_h261_reorder_mb_index(MpegEncContext* s);
807void ff_h261_encode_mb(MpegEncContext *s,
808 DCTELEM block[6][64],
809 int motion_x, int motion_y);
810void ff_h261_encode_picture_header(MpegEncContext * s, int picture_number);
811void ff_h261_encode_init(MpegEncContext *s);
a57d13b7 812int ff_h261_get_picture_format(int width, int height);
5f6c92d4 813
554daa24 814
de6d9b64 815/* rv10.c */
6c28d657
MS
816void ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number);
817int ff_rv_decode_dc(MpegEncContext *s, int n);
818void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number);
de6d9b64 819
4d2858de 820
de6d9b64 821/* msmpeg4.c */
04d38225
MS
822void ff_msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
823void ff_msmpeg4_encode_ext_header(MpegEncContext * s);
824void ff_msmpeg4_encode_mb(MpegEncContext * s,
825 DCTELEM block[6][64],
826 int motion_x, int motion_y);
827int ff_msmpeg4_decode_picture_header(MpegEncContext * s);
828int ff_msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
261a3c2d 829int ff_msmpeg4_decode_init(AVCodecContext *avctx);
0151a6f5 830void ff_msmpeg4_encode_init(MpegEncContext *s);
1457ab52 831int ff_wmv2_decode_picture_header(MpegEncContext * s);
b1609412 832int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s);
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MN
833void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
834void ff_mspel_motion(MpegEncContext *s,
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835 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
836 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
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837 int motion_x, int motion_y, int h);
838int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
115329f1 839void ff_wmv2_encode_mb(MpegEncContext * s,
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840 DCTELEM block[6][64],
841 int motion_x, int motion_y);
de6d9b64 842
98790382 843#endif /* AVCODEC_MPEGVIDEO_H */