avpacket: Add a function for shrinking already allocated side data
[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
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40#include "libavutil/opt.h"
41
160d679c 42#define FRAME_SKIPPED 100 ///< return value for header parsers if frame is not coded
eec1c6b9 43
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44enum OutputFormat {
45 FMT_MPEG1,
c6148de2 46 FMT_H261,
de6d9b64 47 FMT_H263,
115329f1 48 FMT_MJPEG,
0da71265 49 FMT_H264,
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50};
51
52#define MPEG_BUF_SIZE (16 * 1024)
53
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54#define QMAT_SHIFT_MMX 16
55#define QMAT_SHIFT 22
2f349de2 56
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57#define MAX_FCODE 7
58#define MAX_MV 2048
1e491e29 59
e8b78541 60#define MAX_THREADS 16
9c3d33d6 61
5cbb0e70 62#define MAX_PICTURE_COUNT 32
45870f57 63
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64#define ME_MAP_SIZE 64
65#define ME_MAP_SHIFT 3
66#define ME_MAP_MV_BITS 11
67
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68#define MAX_MB_BYTES (30*16*16*3/8 + 120)
69
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70#define INPLACE_OFFSET 16
71
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72/* Start codes. */
73#define SEQ_END_CODE 0x000001b7
74#define SEQ_START_CODE 0x000001b3
75#define GOP_START_CODE 0x000001b8
76#define PICTURE_START_CODE 0x00000100
77#define SLICE_MIN_START_CODE 0x00000101
78#define SLICE_MAX_START_CODE 0x000001af
79#define EXT_START_CODE 0x000001b5
80#define USER_START_CODE 0x000001b2
81
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82struct MpegEncContext;
83
277f4827 84/**
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85 * Picture.
86 */
1e491e29 87typedef struct Picture{
657ccb5a 88 struct AVFrame f;
1e491e29 89
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90 /**
91 * halfpel luma planes.
92 */
93 uint8_t *interpolated[3];
5029a406 94 int8_t *qscale_table_base;
b40cd4e0 95 int16_t (*motion_val_base[2])[2];
7bc9090a 96 uint32_t *mb_type_base;
d0b53d05 97#define MB_TYPE_INTRA MB_TYPE_INTRA4x4 //default mb_type if there is just one type
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98#define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4)
99#define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16)
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100#define IS_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
101#define IS_INTRA(a) ((a)&7)
0da71265 102#define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8))
7bc9090a 103#define IS_SKIP(a) ((a)&MB_TYPE_SKIP)
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104#define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
105#define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED)
106#define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2)
7bc9090a 107#define IS_GMC(a) ((a)&MB_TYPE_GMC)
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108#define IS_16X16(a) ((a)&MB_TYPE_16x16)
109#define IS_16X8(a) ((a)&MB_TYPE_16x8)
110#define IS_8X16(a) ((a)&MB_TYPE_8x16)
111#define IS_8X8(a) ((a)&MB_TYPE_8x8)
112#define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused
113#define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused
114#define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused
115#define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused
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116#define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED)
117#define IS_QUANT(a) ((a)&MB_TYPE_QUANT)
0da71265 118#define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))
755bfeab 119#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 120#define HAS_CBP(a) ((a)&MB_TYPE_CBP)
0da71265 121
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122 int field_poc[2]; ///< h264 top/bottom POC
123 int poc; ///< h264 frame POC
bcc3476c 124 int frame_num; ///< h264 frame_num (raw frame_num from slice header)
c173a088 125 int mmco_reset; ///< h264 MMCO_RESET set this 1. Reordering code must not mix pictures before and after MMCO_RESET.
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126 int pic_id; /**< h264 pic_num (short -> no wrap version of pic_num,
127 pic_num & max_pic_num; long -> long_pic_num) */
0da71265 128 int long_ref; ///< 1->long term reference 0->short term reference
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129 int ref_poc[2][2][16]; ///< h264 POCs of the frames used as reference (FIXME need per slice)
130 int ref_count[2][2]; ///< number of entries in ref_poc (FIXME need per slice)
48e025e5 131 int mbaff; ///< h264 1 -> MBAFF frame 0-> not MBAFF
da9cea77 132 int field_picture; ///< whether or not the picture was encoded in separate fields
0da71265 133
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134 int mb_var_sum; ///< sum of MB variance for current frame
135 int mc_mb_var_sum; ///< motion compensated MB variance for current frame
136 uint16_t *mb_var; ///< Table for MB variances
137 uint16_t *mc_mb_var; ///< Table for motion compensated MB variances
138 uint8_t *mb_mean; ///< Table for MB luminance
bb270c08 139 int32_t *mb_cmp_score; ///< Table for MB cmp scores, for mb decision FIXME remove
0d1e9246 140 int b_frame_score; /* */
6a9c8594 141 struct MpegEncContext *owner2; ///< pointer to the MpegEncContext that allocated this picture
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142} Picture;
143
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144/**
145 * Motion estimation context.
146 */
1457ab52 147typedef struct MotionEstContext{
1f202b0d 148 AVCodecContext *avctx;
115329f1 149 int skip; ///< set if ME is skipped for the current MB
755bfeab 150 int co_located_mv[4][2]; ///< mv from last P-frame for direct mode ME
1457ab52 151 int direct_basis_mv[4][2];
755bfeab 152 uint8_t *scratchpad; ///< data area for the ME algo, so that the ME does not need to malloc/free
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153 uint8_t *best_mb;
154 uint8_t *temp_mb[2];
155 uint8_t *temp;
156 int best_bits;
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157 uint32_t *map; ///< map to avoid duplicate evaluations
158 uint32_t *score_map; ///< map to store the scores
cb668476 159 unsigned map_generation;
826f429a 160 int pre_penalty_factor;
adbfc605 161 int penalty_factor; /**< an estimate of the bits required to
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162 code a given mv value, e.g. (1,0) takes
163 more bits than (0,0). We have to
164 estimate whether any reduction in
165 residual is worth the extra bits. */
1457ab52 166 int sub_penalty_factor;
67725183 167 int mb_penalty_factor;
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168 int flags;
169 int sub_flags;
170 int mb_flags;
115329f1 171 int pre_pass; ///< = 1 for the pre pass
826f429a 172 int dia_size;
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173 int xmin;
174 int xmax;
175 int ymin;
176 int ymax;
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177 int pred_x;
178 int pred_y;
179 uint8_t *src[4][4];
180 uint8_t *ref[4][4];
181 int stride;
182 int uvstride;
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183 /* temp variables for picture complexity calculation */
184 int mc_mb_var_sum_temp;
185 int mb_var_sum_temp;
186 int scene_change_score;
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187/* cmp, chroma_cmp;*/
188 op_pixels_func (*hpel_put)[4];
189 op_pixels_func (*hpel_avg)[4];
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190 qpel_mc_func (*qpel_put)[16];
191 qpel_mc_func (*qpel_avg)[16];
115329f1 192 uint8_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV
2750b827 193 uint8_t *current_mv_penalty;
1457ab52 194 int (*sub_motion_search)(struct MpegEncContext * s,
bb270c08 195 int *mx_ptr, int *my_ptr, int dmin,
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196 int src_index, int ref_index,
197 int size, int h);
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198}MotionEstContext;
199
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200/**
201 * MpegEncContext.
202 */
de6d9b64 203typedef struct MpegEncContext {
297d9cb3 204 AVClass *class;
58f26ba9 205 struct AVCodecContext *avctx;
de6d9b64 206 /* the following parameters must be initialized before encoding */
115329f1 207 int width, height;///< picture size. must be a multiple of 16
de6d9b64 208 int gop_size;
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209 int intra_only; ///< if true, only intra pictures are generated
210 int bit_rate; ///< wanted bit rate
211 enum OutputFormat out_format; ///< output format
212 int h263_pred; ///< use mpeg4/h263 ac/dc predictions
91ba181a 213 int pb_frame; ///< PB frame mode (0 = none, 1 = base, 2 = improved)
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214
215/* the following codec id fields are deprecated in favor of codec_id */
115329f1 216 int h263_plus; ///< h263 plus headers
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217 int h263_flv; ///< use flv h263 header
218
0f242af2 219 enum CodecID codec_id; /* see CODEC_ID_xxx */
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220 int fixed_qscale; ///< fixed qscale if non zero
221 int encoding; ///< true if we are encoding (vs decoding)
222 int flags; ///< AVCodecContext.flags (HQ, MV4, ...)
303e50e6 223 int flags2; ///< AVCodecContext.flags2
115329f1 224 int max_b_frames; ///< max number of b-frames for encoding
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225 int luma_elim_threshold;
226 int chroma_elim_threshold;
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227 int strict_std_compliance; ///< strictly follow the std (MPEG4, ...)
228 int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
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229 int codec_tag; ///< internal codec_tag upper case converted from avctx codec_tag
230 int stream_codec_tag; ///< internal stream_codec_tag upper case converted from avctx stream_codec_tag
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231 /* the following fields are managed internally by the encoder */
232
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233 /* sequence parameters */
234 int context_initialized;
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235 int input_picture_number; ///< used to set pic->display_picture_number, should not be used for/by anything else
236 int coded_picture_number; ///< used to set pic->coded_picture_number, should not be used for/by anything else
1031fabd 237 int picture_number; //FIXME remove, unclear definition
115329f1 238 int picture_in_gop_number; ///< 0-> first pic in gop, ...
115329f1 239 int mb_width, mb_height; ///< number of MBs horizontally & vertically
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240 int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11
241 int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
242 int b4_stride; ///< 4*mb_width+1 used for some 4x4 block arrays to allow simple addressing
243 int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication)
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244 int mb_num; ///< number of MBs of a picture
245 int linesize; ///< line size, in bytes, may be different from width
246 int uvlinesize; ///< line size, for chroma in bytes, may be different from width
247 Picture *picture; ///< main picture buffer
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248 Picture **input_picture; ///< next pictures on display order for encoding
249 Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding
115329f1 250
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251 int y_dc_scale, c_dc_scale;
252 int ac_pred;
253 int block_last_index[12]; ///< last non zero coefficient in block
254 int h263_aic; ///< Advanded INTRA Coding (AIC)
255
256 /* scantables */
257 ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage
258 ScanTable intra_scantable;
259 ScanTable intra_h_scantable;
260 ScanTable intra_v_scantable;
261
262 /* WARNING: changes above this line require updates to hardcoded
263 * offsets used in asm. */
264
d0a2f0af 265 int64_t user_specified_pts;///< last non zero pts from AVFrame which was passed into avcodec_encode_video()
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266 /**
267 * pts difference between the first and second input frame, used for
268 * calculating dts of the first frame when there's a delay */
269 int64_t dts_delta;
270 /**
271 * reordered pts to be used as dts for the next output frame when there's
272 * a delay */
273 int64_t reordered_pts;
d0a2f0af 274
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275 /** bit output */
276 PutBitContext pb;
277
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278 int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
279 int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
280 struct MpegEncContext *thread_context[MAX_THREADS];
881a5e04 281 int slice_context_count; ///< number of used thread_contexts
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282
283 /**
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284 * copy of the previous picture structure.
285 * note, linesize & data, might not match the previous picture (for field pictures)
286 */
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287 Picture last_picture;
288
289 /**
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290 * copy of the next picture structure.
291 * note, linesize & data, might not match the next picture (for field pictures)
292 */
293 Picture next_picture;
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294
295 /**
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296 * copy of the source picture structure for encoding.
297 * note, linesize & data, might not match the source picture (for field pictures)
298 */
299 Picture new_picture;
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300
301 /**
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302 * copy of the current picture structure.
303 * note, linesize & data, might not match the current picture (for field pictures)
304 */
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305 Picture current_picture; ///< buffer to store the decompressed current picture
306
b536d0aa 307 Picture *last_picture_ptr; ///< pointer to the previous picture.
115329f1 308 Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
b536d0aa 309 Picture *current_picture_ptr; ///< pointer to the current picture
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310 int picture_count; ///< number of allocated pictures (MAX_PICTURE_COUNT * avctx->thread_count)
311 int picture_range_start, picture_range_end; ///< the part of picture that this context can allocate in
02494787 312 uint8_t *visualization_buffer[3]; ///< temporary buffer vor MV visualization
115329f1 313 int last_dc[3]; ///< last DC values for MPEG1
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314 int16_t *dc_val_base;
315 int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
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316 const uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
317 const uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
332f9ac4 318 const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (h263)
137c8468 319 uint8_t *coded_block_base;
277f4827 320 uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
137c8468 321 int16_t (*ac_val_base)[16];
115329f1 322 int16_t (*ac_val[3])[16]; ///< used for for mpeg4 AC prediction, all 3 arrays must be continuous
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323 int mb_skipped; ///< MUST BE SET only during DECODING
324 uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
9dbcbd92 325 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
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326 uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
327 uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
328 uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
330deb75 329 uint8_t *edge_emu_buffer; ///< temporary buffer for if MVs point to out-of-frame data
bb628dae 330 uint8_t *rd_scratchpad; ///< scratchpad for rate distortion mb decision
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331 uint8_t *obmc_scratchpad;
332 uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers
de6d9b64 333
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334 int qscale; ///< QP
335 int chroma_qscale; ///< chroma QP
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336 unsigned int lambda; ///< lagrange multipler used in rate distortion
337 unsigned int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
158c7f05 338 int *lambda_table;
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339 int adaptive_quant; ///< use adaptive quantization
340 int dquant; ///< qscale difference to prev qscale
975a1447 341 int pict_type; ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
14e2a940 342 int last_pict_type; //FIXME removes
115329f1 343 int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol
14e2a940 344 int dropable;
de6d9b64 345 int frame_rate_index;
88e51e1f 346 int last_lambda_for[5]; ///< last lambda for a specific pict type
c52f5d66 347 int skipdct; ///< skip dct and code zero residual
5e5c247a 348
de6d9b64 349 /* motion compensation */
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350 int unrestricted_mv; ///< mv can point outside of the coded picture
351 int h263_long_vectors; ///< use horrible h263v1 long vector mode
277f4827 352
bb628dae 353 DSPContext dsp; ///< pointers for accelerated dsp functions
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354 int f_code; ///< forward MV resolution
355 int b_code; ///< backward MV resolution for B Frames (mpeg4)
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356 int16_t (*p_mv_table_base)[2];
357 int16_t (*b_forw_mv_table_base)[2];
358 int16_t (*b_back_mv_table_base)[2];
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359 int16_t (*b_bidir_forw_mv_table_base)[2];
360 int16_t (*b_bidir_back_mv_table_base)[2];
7bc9090a 361 int16_t (*b_direct_mv_table_base)[2];
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362 int16_t (*p_field_mv_table_base[2][2])[2];
363 int16_t (*b_field_mv_table_base[2][2][2])[2];
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364 int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) p-frame encoding
365 int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode b-frame encoding
366 int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode b-frame encoding
367 int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
368 int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
369 int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode b-frame encoding
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370 int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced p-frame encoding
371 int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced b-frame encoding
372 uint8_t (*p_field_select_table[2]);
373 uint8_t (*b_field_select_table[2][2]);
115329f1 374 int me_method; ///< ME algorithm
de6d9b64 375 int mv_dir;
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376#define MV_DIR_FORWARD 1
377#define MV_DIR_BACKWARD 2
277f4827 378#define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
de6d9b64 379 int mv_type;
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380#define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
381#define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV)
382#define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block
383#define MV_TYPE_FIELD 3 ///< 2 vectors, one per field
384#define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors
385 /**motion vectors for a macroblock
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386 first coordinate : 0 = forward 1 = backward
387 second " : depend on type
388 third " : 0 = x, 1 = y
389 */
390 int mv[2][4][2];
391 int field_select[2][2];
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392 int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4
393 uint8_t *fcode_tab; ///< smallest fcode needed for each MV
841f65f2 394 int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv
115329f1 395
1457ab52 396 MotionEstContext me;
de6d9b64 397
115329f1 398 int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
e42dba48 399 for b-frames rounding mode is always 0 */
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400
401 /* macroblock layer */
402 int mb_x, mb_y;
9b8709d1 403 int mb_skip_run;
de6d9b64 404 int mb_intra;
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405 uint16_t *mb_type; ///< Table for candidate MB types for encoding
406#define CANDIDATE_MB_TYPE_INTRA 0x01
407#define CANDIDATE_MB_TYPE_INTER 0x02
408#define CANDIDATE_MB_TYPE_INTER4V 0x04
160d679c 409#define CANDIDATE_MB_TYPE_SKIPPED 0x08
7bc9090a 410//#define MB_TYPE_GMC 0x10
7f2fe444 411
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412#define CANDIDATE_MB_TYPE_DIRECT 0x10
413#define CANDIDATE_MB_TYPE_FORWARD 0x20
414#define CANDIDATE_MB_TYPE_BACKWARD 0x40
415#define CANDIDATE_MB_TYPE_BIDIR 0x80
416
417#define CANDIDATE_MB_TYPE_INTER_I 0x100
418#define CANDIDATE_MB_TYPE_FORWARD_I 0x200
419#define CANDIDATE_MB_TYPE_BACKWARD_I 0x400
420#define CANDIDATE_MB_TYPE_BIDIR_I 0x800
4278e7a6 421
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422#define CANDIDATE_MB_TYPE_DIRECT0 0x1000
423
277f4827 424 int block_index[6]; ///< index to current MB in block based arrays with edges
4278e7a6 425 int block_wrap[6];
7d1c3fc1 426 uint8_t *dest[3];
115329f1 427
7bc9090a 428 int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride
4278e7a6 429
277f4827 430 /** matrix transmitted in the bitstream */
0c1a9eda
ZK
431 uint16_t intra_matrix[64];
432 uint16_t chroma_intra_matrix[64];
433 uint16_t inter_matrix[64];
434 uint16_t chroma_inter_matrix[64];
1984f635 435#define QUANT_BIAS_SHIFT 8
115329f1
DB
436 int intra_quant_bias; ///< bias for the quantizer
437 int inter_quant_bias; ///< bias for the quantizer
438 int min_qcoeff; ///< minimum encodable coefficient
439 int max_qcoeff; ///< maximum encodable coefficient
440 int ac_esc_length; ///< num of bits needed to encode the longest esc
477ab036
MN
441 uint8_t *intra_ac_vlc_length;
442 uint8_t *intra_ac_vlc_last_length;
443 uint8_t *inter_ac_vlc_length;
444 uint8_t *inter_ac_vlc_last_length;
67725183 445 uint8_t *luma_dc_vlc_length;
c442d75c 446#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
477ab036 447
2d974017 448 int coded_score[8];
f2f6134b 449
277f4827 450 /** precomputed matrix (combine qscale and DCT renorm) */
7e4995c3
MN
451 int (*q_intra_matrix)[64];
452 int (*q_inter_matrix)[64];
642ccefb
MN
453 /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
454 uint16_t (*q_intra_matrix16)[2][64];
455 uint16_t (*q_inter_matrix16)[2][64];
115329f1 456
821cb11f
MN
457 /* noise reduction */
458 int (*dct_error_sum)[64];
459 int dct_count[2];
460 uint16_t (*dct_offset)[64];
de6d9b64 461
277f4827 462 void *opaque; ///< private data for the user
de6d9b64
FB
463
464 /* bit rate control */
0c1a9eda 465 int64_t total_bits;
115329f1 466 int frame_bits; ///< bits used for the current frame
07506002 467 int next_lambda; ///< next lambda used for retrying to encode a frame
277f4827 468 RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
9cdd6a24 469
098eefe1
MN
470 /* statistics, used for 2-pass encoding */
471 int mv_bits;
472 int header_bits;
473 int i_tex_bits;
474 int p_tex_bits;
475 int i_count;
66370d3f
MN
476 int f_count;
477 int b_count;
098eefe1 478 int skip_count;
277f4827
MN
479 int misc_bits; ///< cbp, mb_type
480 int last_bits; ///< temp var used for calculating the above vars
115329f1 481
7f2fe444 482 /* error concealment / resync */
6a9c8594 483 int error_count, error_occurred;
115329f1
DB
484 uint8_t *error_status_table; ///< table of the error status of each MB
485#define VP_START 1 ///< current MB is the first after a resync marker
5bf2ac2b
LB
486#define ER_AC_ERROR 2
487#define ER_DC_ERROR 4
488#define ER_MV_ERROR 8
489#define ER_AC_END 16
490#define ER_DC_END 32
491#define ER_MV_END 64
115329f1 492
63ccd466
LB
493#define ER_MB_ERROR (ER_AC_ERROR|ER_DC_ERROR|ER_MV_ERROR)
494#define ER_MB_END (ER_AC_END|ER_DC_END|ER_MV_END)
495
115329f1
DB
496 int resync_mb_x; ///< x position of last resync marker
497 int resync_mb_y; ///< y position of last resync marker
498 GetBitContext last_resync_gb; ///< used to search for the next resync marker
277f4827 499 int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only)
115329f1 500 int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed b frames
5b22d6e1 501 int err_recognition;
115329f1 502
d7425f59 503 ParseContext parse_context;
098eefe1 504
102d3908 505 /* H.263 specific */
644d98a4 506 int gob_index;
dba019da 507 int obmc; ///< overlapped block motion compensation
9f0a705d 508 int showed_packed_warning; ///< flag for having shown the warning about divxs invalid b frames
115329f1 509
544286b3 510 /* H.263+ specific */
115329f1 511 int umvplus; ///< == H263+ && unrestricted_mv
ba58dabc
MN
512 int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
513 int h263_slice_structured;
dba019da 514 int alt_inter_vlc; ///< alternative inter vlc
68b94c35 515 int modified_quant;
115329f1 516 int loop_filter;
b056e73c 517 int custom_pcf;
115329f1 518
de6d9b64 519 /* mpeg4 specific */
115329f1 520 int time_increment_bits; ///< number of bits to represent the fractional part of time
9dbcbd92 521 int last_time_base;
115329f1
DB
522 int time_base; ///< time in seconds of last I,P,S Frame
523 int64_t time; ///< time of current frame
0c1a9eda 524 int64_t last_non_b_time;
115329f1
DB
525 uint16_t pp_time; ///< time distance between the last 2 p,s,i frames
526 uint16_t pb_time; ///< time distance between the last b and p,s,i frame
0c1a9eda 527 uint16_t pp_field_time;
115329f1 528 uint16_t pb_field_time; ///< like above, just for interlaced
1a565432
FB
529 int shape;
530 int vol_sprite_usage;
cc9ba006
MN
531 int sprite_width;
532 int sprite_height;
533 int sprite_left;
534 int sprite_top;
535 int sprite_brightness_change;
73c8e514 536 int num_sprite_warping_points;
44eb4951 537 int real_sprite_warping_points;
11b93979 538 uint16_t sprite_traj[4][2]; ///< sprite trajectory points
115329f1
DB
539 int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
540 int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
541 int sprite_shift[2]; ///< sprite shift [isChroma]
73c8e514 542 int mcsel;
1a565432 543 int quant_precision;
115329f1 544 int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
cc9ba006 545 int scalability;
0fd90455
MN
546 int hierachy_type;
547 int enhancement_type;
cc9ba006
MN
548 int new_pred;
549 int reduced_res_vop;
0da71265 550 int aspect_ratio_info; //FIXME remove
cc9ba006
MN
551 int sprite_warping_accuracy;
552 int low_latency_sprite;
115329f1
DB
553 int data_partitioning; ///< data partitioning flag from header
554 int partitioned_frame; ///< is current frame partitioned
555 int rvlc; ///< reversible vlc
277f4827 556 int resync_marker; ///< could this stream contain resync markers
115329f1 557 int low_delay; ///< no reordering needed / has no b-frames
1ff662cc 558 int vo_type;
115329f1
DB
559 int vol_control_parameters; ///< does the stream contain the low_delay flag, used to workaround buggy encoders
560 int intra_dc_threshold; ///< QP above whch the ac VLC should be used for intra dc
7f12a978 561 int use_intra_dc_vlc;
115329f1
DB
562 PutBitContext tex_pb; ///< used for data partitioned VOPs
563 PutBitContext pb2; ///< used for data partitioned VOPs
d930ef19 564 int mpeg_quant;
115329f1
DB
565 int t_frame; ///< time distance of first I -> B, used for interlaced b frames
566 int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4
289e8fd0
MN
567 int cplx_estimation_trash_i;
568 int cplx_estimation_trash_p;
569 int cplx_estimation_trash_b;
44eb4951
MN
570
571 /* divx specific, used to workaround (many) bugs in divx5 */
572 int divx_version;
573 int divx_build;
d5a21172 574 int divx_packed;
0c1a9eda 575 uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
eec1c6b9 576 int bitstream_buffer_size;
f038fe8b 577 unsigned int allocated_bitstream_buffer_size;
115329f1 578
7da71a5c 579 int xvid_build;
115329f1 580
4d2858de 581 /* lavc specific stuff, used to workaround bugs in libavcodec */
4d2858de 582 int lavc_build;
115329f1 583
de6d9b64 584 /* RV10 specific */
115329f1 585 int rv10_version; ///< RV10 version: 0 or 3
de6d9b64 586 int rv10_first_dc_coded[3];
94f28061 587 int orig_width, orig_height;
115329f1 588
de6d9b64
FB
589 /* MJPEG specific */
590 struct MJpegContext *mjpeg_ctx;
115329f1
DB
591 int mjpeg_vsample[3]; ///< vertical sampling factors, default = {2, 1, 1}
592 int mjpeg_hsample[3]; ///< horizontal sampling factors, default = {2, 1, 1}
de6d9b64
FB
593
594 /* MSMPEG4 specific */
595 int mv_table_index;
596 int rl_table_index;
597 int rl_chroma_table_index;
598 int dc_table_index;
599 int use_skip_mb_code;
115329f1
DB
600 int slice_height; ///< in macroblocks
601 int first_slice_line; ///< used in mpeg4 too to handle resync markers
ae40484c 602 int flipflop_rounding;
277f4827 603 int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
0151a6f5
MN
604 int per_mb_rl_table;
605 int esc3_level_length;
606 int esc3_run_length;
277f4827 607 /** [mb_intra][isChroma][level][run][last] */
6b460aa3 608 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
de0f2f4c 609 int inter_intra_pred;
1457ab52 610 int mspel;
0151a6f5 611
de6d9b64
FB
612 /* decompression specific */
613 GetBitContext gb;
614
1e491e29 615 /* Mpeg1 specific */
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DB
616 int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
617 int last_mv_dir; ///< last mv_dir, used for b frame encoding
0da71265 618 int broken_link; ///< no_output_of_prior_pics_flag
115329f1
DB
619 uint8_t *vbv_delay_ptr; ///< pointer to vbv_delay in the bitstream
620
7eb2d654 621 /* MPEG-2-specific - I wished not to have to support this mess. */
de6d9b64
FB
622 int progressive_sequence;
623 int mpeg_f_code[2][2];
624 int picture_structure;
625/* picture type */
626#define PICT_TOP_FIELD 1
627#define PICT_BOTTOM_FIELD 2
628#define PICT_FRAME 3
629
630 int intra_dc_precision;
631 int frame_pred_frame_dct;
632 int top_field_first;
633 int concealment_motion_vectors;
634 int q_scale_type;
635 int intra_vlc_format;
636 int alternate_scan;
637 int repeat_first_field;
638 int chroma_420_type;
5e5c247a
IK
639 int chroma_format;
640#define CHROMA_420 1
641#define CHROMA_422 2
642#define CHROMA_444 3
ffdff4d7
IK
643 int chroma_x_shift;//depend on pix_format, that depend on chroma_format
644 int chroma_y_shift;
5e5c247a 645
de6d9b64 646 int progressive_frame;
cd8c64e1 647 int full_pel[2];
de6d9b64 648 int interlaced_dct;
de6d9b64 649 int first_slice;
c3bf0288 650 int first_field; ///< is 1 for the first field of a field picture 0 otherwise
2c5e1efc 651 int drop_frame_timecode; ///< timecode is in drop frame format.
aed79007 652 int scan_offset; ///< reserve space for SVCD scan offset user data.
ba58dabc 653
644d98a4 654 /* RTP specific */
e4eadb4b 655 int rtp_mode;
115329f1 656
0c1a9eda 657 uint8_t *ptr_lastgob;
7eb2d654 658 int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped
21effaa4 659 DCTELEM (*pblocks[12])[64];
115329f1
DB
660
661 DCTELEM (*block)[64]; ///< points to one of the following blocks
702497f8 662 DCTELEM (*blocks)[8][64]; // for HQ mode we need to keep the best block
4d2858de
MN
663 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
664#define SLICE_OK 0
665#define SLICE_ERROR -1
c3bf0288
MN
666#define SLICE_END -2 ///<end marker found
667#define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
115329f1
DB
668
669 void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s,
67309e49 670 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 671 void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s,
67309e49 672 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 673 void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s,
67309e49 674 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 675 void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s,
d50635cd 676 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 677 void (*dct_unquantize_h263_intra)(struct MpegEncContext *s,
d50635cd 678 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 679 void (*dct_unquantize_h263_inter)(struct MpegEncContext *s,
d50635cd 680 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 681 void (*dct_unquantize_h261_intra)(struct MpegEncContext *s,
c6148de2 682 DCTELEM *block/*align 16*/, int n, int qscale);
115329f1 683 void (*dct_unquantize_h261_inter)(struct MpegEncContext *s,
c6148de2 684 DCTELEM *block/*align 16*/, int n, int qscale);
d50635cd
MN
685 void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
686 DCTELEM *block/*align 16*/, int n, int qscale);
687 void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
67309e49
MN
688 DCTELEM *block/*align 16*/, int n, int qscale);
689 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
3a87ac94 690 int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
783df5f3 691 void (*denoise_dct)(struct MpegEncContext *s, DCTELEM *block);
ed019b8e
AK
692
693 int mpv_flags; ///< flags set by private options
23bfcc06 694 int quantizer_noise_shaping;
de6d9b64
FB
695} MpegEncContext;
696
6a9c8594
AS
697#define REBASE_PICTURE(pic, new_ctx, old_ctx) (pic ? \
698 (pic >= old_ctx->picture && pic < old_ctx->picture+old_ctx->picture_count ?\
699 &new_ctx->picture[pic - old_ctx->picture] : pic - (Picture*)old_ctx + (Picture*)new_ctx)\
700 : NULL)
4d2858de 701
ed019b8e
AK
702/* mpegvideo_enc common options */
703#define FF_MPV_FLAG_SKIP_RD 0x0001
a249f0cc 704#define FF_MPV_FLAG_STRICT_GOP 0x0002
ff71a383 705#define FF_MPV_FLAG_QP_RD 0x0004
af3d804f 706#define FF_MPV_FLAG_CBP_RD 0x0008
ed019b8e
AK
707
708#define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
709#define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
710#define FF_MPV_COMMON_OPTS \
711{ "mpv_flags", "Flags common for all mpegvideo-based encoders.", FF_MPV_OFFSET(mpv_flags), AV_OPT_TYPE_FLAGS, { 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "mpv_flags" },\
712{ "skip_rd", "RD optimal MB level residual skipping", 0, AV_OPT_TYPE_CONST, { FF_MPV_FLAG_SKIP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
ff71a383 713{ "strict_gop", "Strictly enforce gop size", 0, AV_OPT_TYPE_CONST, { FF_MPV_FLAG_STRICT_GOP }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
af3d804f 714{ "qp_rd", "Use rate distortion optimization for qp selection", 0, AV_OPT_TYPE_CONST, { FF_MPV_FLAG_QP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
63efd83a
AK
715{ "cbp_rd", "use rate distortion optimization for CBP", 0, AV_OPT_TYPE_CONST, { FF_MPV_FLAG_CBP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
716{ "luma_elim_threshold", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
717 FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
718{ "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
23bfcc06
AK
719 FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
720{ "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },
ed019b8e
AK
721
722extern const AVOption ff_mpv_generic_options[];
723
724#define FF_MPV_GENERIC_CLASS(name) \
725static const AVClass name ## _class = {\
726 .class_name = #name " encoder",\
727 .item_name = av_default_item_name,\
728 .option = ff_mpv_generic_options,\
729 .version = LIBAVUTIL_VERSION_INT,\
730};
731
efd29844
MS
732void ff_MPV_decode_defaults(MpegEncContext *s);
733int ff_MPV_common_init(MpegEncContext *s);
734void ff_MPV_common_end(MpegEncContext *s);
735void ff_MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]);
736int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
737void ff_MPV_frame_end(MpegEncContext *s);
738int ff_MPV_encode_init(AVCodecContext *avctx);
739int ff_MPV_encode_end(AVCodecContext *avctx);
445a7d48
AK
740int ff_MPV_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
741 const AVFrame *frame, int *got_packet);
efd29844
MS
742void ff_MPV_common_init_mmx(MpegEncContext *s);
743void ff_MPV_common_init_axp(MpegEncContext *s);
744void ff_MPV_common_init_mmi(MpegEncContext *s);
745void ff_MPV_common_init_arm(MpegEncContext *s);
746void ff_MPV_common_init_altivec(MpegEncContext *s);
747void ff_MPV_common_init_bfin(MpegEncContext *s);
7f2fe444 748void ff_clean_intra_table_entries(MpegEncContext *s);
640950c7 749void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
7a06ff14 750void ff_mpeg_flush(AVCodecContext *avctx);
0c9bbaec 751void ff_print_debug_info(MpegEncContext *s, AVFrame *pict);
191e8ca7 752void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
6a9c8594 753void ff_release_unused_pictures(MpegEncContext *s, int remove_current);
5f194811 754int ff_find_unused_picture(MpegEncContext *s, int shared);
821cb11f 755void ff_denoise_dct(MpegEncContext *s, DCTELEM *block);
c62c07d3 756void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
efd29844
MS
757int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir);
758void ff_MPV_report_decode_progress(MpegEncContext *s);
6a9c8594 759int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src);
773375c3 760const uint8_t *avpriv_mpv_find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state);
bb174ff1 761void ff_set_qscale(MpegEncContext * s, int qscale);
59b571c1 762
46b4feec
MN
763void ff_er_frame_start(MpegEncContext *s);
764void ff_er_frame_end(MpegEncContext *s);
765void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status);
766
6180ade7 767int ff_dct_common_init(MpegEncContext *s);
69cea75f
BC
768void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
769 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
46b4feec 770
7d1c3fc1 771void ff_init_block_index(MpegEncContext *s);
8d2fc163 772void ff_copy_picture(Picture *dst, Picture *src);
4d2858de 773
a4a750d3 774/**
58c42af7
DB
775 * Allocate a Picture.
776 * The pixels are allocated/set by calling get_buffer() if shared = 0.
a4a750d3
BC
777 */
778int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared);
779
09a9b45e 780extern const enum PixelFormat ff_pixfmt_list_420[];
044f0296 781extern const enum PixelFormat ff_hwaccel_pixfmt_list_420[];
09a9b45e 782
4d2858de 783static inline void ff_update_block_index(MpegEncContext *s){
178fcca8
MN
784 const int block_size= 8>>s->avctx->lowres;
785
4d2858de
MN
786 s->block_index[0]+=2;
787 s->block_index[1]+=2;
788 s->block_index[2]+=2;
789 s->block_index[3]+=2;
790 s->block_index[4]++;
791 s->block_index[5]++;
178fcca8
MN
792 s->dest[0]+= 2*block_size;
793 s->dest[1]+= block_size;
794 s->dest[2]+= block_size;
4d2858de
MN
795}
796
4d2a4834 797static inline int get_bits_diff(MpegEncContext *s){
fe455f33 798 const int bits= put_bits_count(&s->pb);
4d2a4834
MN
799 const int last= s->last_bits;
800
801 s->last_bits = bits;
802
803 return bits - last;
804}
4d2858de 805
00f0564f
MR
806static inline int ff_h263_round_chroma(int x){
807 static const uint8_t h263_chroma_roundtab[16] = {
808 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
c3d0c11b 809 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
00f0564f 810 };
c3d0c11b 811 return h263_chroma_roundtab[x & 0xf] + (x >> 3);
00f0564f
MR
812}
813
de6d9b64 814/* motion_est.c */
9dbcbd92
MN
815void ff_estimate_p_frame_motion(MpegEncContext * s,
816 int mb_x, int mb_y);
817void ff_estimate_b_frame_motion(MpegEncContext * s,
818 int mb_x, int mb_y);
819int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
820void ff_fix_long_p_mvs(MpegEncContext * s);
bb198e19
MN
821void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
822 int16_t (*mv_table)[2], int f_code, int type, int truncate);
c192426f 823int ff_init_me(MpegEncContext *s);
f5fb6b34 824int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
4bdd3b76 825int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr,
115329f1
DB
826 int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2],
827 int ref_mv_scale, int size, int h);
4bdd3b76 828int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index,
155ec6ed 829 int ref_index, int size, int h, int add_rate);
4d2858de 830
de6d9b64 831/* mpeg12.c */
c26ae41d 832extern const uint8_t ff_mpeg1_dc_scale_table[128];
53f66cee 833extern const uint8_t * const ff_mpeg2_dc_scale_table[4];
de6d9b64 834
d6c8dcb8
MS
835void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
836void ff_mpeg1_encode_mb(MpegEncContext *s,
837 DCTELEM block[6][64],
838 int motion_x, int motion_y);
0151a6f5 839void ff_mpeg1_encode_init(MpegEncContext *s);
9b8709d1
MN
840void ff_mpeg1_encode_slice_header(MpegEncContext *s);
841void ff_mpeg1_clean_buffers(MpegEncContext *s);
a4c7a5ea 842int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s);
de6d9b64 843
c26ae41d 844extern const uint8_t ff_aic_dc_scale_table[32];
332f9ac4
MN
845extern const uint8_t ff_h263_chroma_qscale_table[32];
846extern const uint8_t ff_h263_loop_filter_strength[32];
68b94c35 847
5f6c92d4
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848/* h261.c */
849void ff_h261_loop_filter(MpegEncContext *s);
1c3990db
MN
850void ff_h261_reorder_mb_index(MpegEncContext* s);
851void ff_h261_encode_mb(MpegEncContext *s,
852 DCTELEM block[6][64],
853 int motion_x, int motion_y);
854void ff_h261_encode_picture_header(MpegEncContext * s, int picture_number);
855void ff_h261_encode_init(MpegEncContext *s);
a57d13b7 856int ff_h261_get_picture_format(int width, int height);
5f6c92d4 857
554daa24 858
de6d9b64 859/* rv10.c */
6c28d657
MS
860void ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number);
861int ff_rv_decode_dc(MpegEncContext *s, int n);
862void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number);
de6d9b64 863
4d2858de 864
de6d9b64 865/* msmpeg4.c */
04d38225
MS
866void ff_msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
867void ff_msmpeg4_encode_ext_header(MpegEncContext * s);
868void ff_msmpeg4_encode_mb(MpegEncContext * s,
869 DCTELEM block[6][64],
870 int motion_x, int motion_y);
871int ff_msmpeg4_decode_picture_header(MpegEncContext * s);
872int ff_msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
261a3c2d 873int ff_msmpeg4_decode_init(AVCodecContext *avctx);
0151a6f5 874void ff_msmpeg4_encode_init(MpegEncContext *s);
1457ab52 875int ff_wmv2_decode_picture_header(MpegEncContext * s);
b1609412 876int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s);
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877void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
878void ff_mspel_motion(MpegEncContext *s,
0c1a9eda
ZK
879 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
880 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
1457ab52
MN
881 int motion_x, int motion_y, int h);
882int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
115329f1 883void ff_wmv2_encode_mb(MpegEncContext * s,
1457ab52
MN
884 DCTELEM block[6][64],
885 int motion_x, int motion_y);
de6d9b64 886
98790382 887#endif /* AVCODEC_MPEGVIDEO_H */