h261 decoder by (Maarten Daniels <maarten.daniels at student dot luc dot ac dot be>)
[libav.git] / libavcodec / mpegvideo.h
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1/*
2 * Generic DCT based hybrid video encoder
ff4ec49e 3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
8f2ab833 4 * Copyright (c) 2002-2004 Michael Niedermayer
de6d9b64 5 *
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6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
de6d9b64 10 *
ff4ec49e 11 * This library is distributed in the hope that it will be useful,
de6d9b64 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
de6d9b64 15 *
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16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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19 */
20
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21/**
22 * @file mpegvideo.h
23 * mpegvideo header.
24 */
25
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26#ifndef AVCODEC_MPEGVIDEO_H
27#define AVCODEC_MPEGVIDEO_H
28
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29#include "dsputil.h"
30
277f4827 31#define FRAME_SKIPED 100 ///< return value for header parsers if frame is not coded
eec1c6b9 32
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33enum OutputFormat {
34 FMT_MPEG1,
c6148de2 35 FMT_H261,
de6d9b64 36 FMT_H263,
9dbcbd92 37 FMT_MJPEG,
0da71265 38 FMT_H264,
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39};
40
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41#define EDGE_WIDTH 16
42
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43#define MPEG_BUF_SIZE (16 * 1024)
44
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45#define QMAT_SHIFT_MMX 16
46#define QMAT_SHIFT 22
2f349de2 47
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48#define MAX_FCODE 7
49#define MAX_MV 2048
1e491e29 50
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51#define MAX_THREADS 8
52
0d1e9246 53#define MAX_PICTURE_COUNT 15
45870f57 54
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55#define ME_MAP_SIZE 64
56#define ME_MAP_SHIFT 3
57#define ME_MAP_MV_BITS 11
58
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59/* run length table */
60#define MAX_RUN 64
61#define MAX_LEVEL 64
62
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63#define I_TYPE FF_I_TYPE ///< Intra
64#define P_TYPE FF_P_TYPE ///< Predicted
65#define B_TYPE FF_B_TYPE ///< Bi-dir predicted
66#define S_TYPE FF_S_TYPE ///< S(GMC)-VOP MPEG4
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67#define SI_TYPE FF_SI_TYPE ///< Switching Intra
68#define SP_TYPE FF_SP_TYPE ///< Switching Predicted
140cb663 69
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70typedef struct Predictor{
71 double coeff;
72 double count;
73 double decay;
74} Predictor;
75
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76typedef struct RateControlEntry{
77 int pict_type;
c5d309f2 78 float qscale;
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79 int mv_bits;
80 int i_tex_bits;
81 int p_tex_bits;
82 int misc_bits;
0c1a9eda 83 uint64_t expected_bits;
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84 int new_pict_type;
85 float new_qscale;
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86 int mc_mb_var_sum;
87 int mb_var_sum;
88 int i_count;
89 int f_code;
90 int b_code;
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91}RateControlEntry;
92
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93/**
94 * rate control context.
95 */
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96typedef struct RateControlContext{
97 FILE *stats_file;
277f4827 98 int num_entries; ///< number of RateControlEntries
8b4c7dbc 99 RateControlEntry *entry;
fb066639 100 double buffer_index; ///< amount of bits in the video/audio buffer
3aa102be 101 Predictor pred[5];
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102 double short_term_qsum; ///< sum of recent qscales
103 double short_term_qcount; ///< count of recent qscales
104 double pass1_rc_eq_output_sum;///< sum of the output of the rc equation, this is used for normalization
105 double pass1_wanted_bits; ///< bits which should have been outputed by the pass1 code (including complexity init)
3aa102be 106 double last_qscale;
277f4827 107 double last_qscale_for[5]; ///< last qscale for a specific pict type, used for max_diff & ipb factor stuff
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108 int last_mc_mb_var_sum;
109 int last_mb_var_sum;
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110 uint64_t i_cplx_sum[5];
111 uint64_t p_cplx_sum[5];
112 uint64_t mv_bits_sum[5];
113 uint64_t qscale_sum[5];
3aa102be 114 int frame_count[5];
947ac25a 115 int last_non_b_pict_type;
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116}RateControlContext;
117
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118/**
119 * Scantable.
120 */
2ad1516a 121typedef struct ScanTable{
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122 const uint8_t *scantable;
123 uint8_t permutated[64];
124 uint8_t raster_end[64];
05c4072b 125#ifdef ARCH_POWERPC
277f4827 126 /** Used by dct_quantise_alitvec to find last-non-zero */
0c1a9eda 127 uint8_t __align8 inverse[64];
05c4072b 128#endif
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129} ScanTable;
130
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131/**
132 * Picture.
133 */
1e491e29 134typedef struct Picture{
492cd3a9 135 FF_COMMON_FRAME
1e491e29 136
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137 /**
138 * halfpel luma planes.
139 */
140 uint8_t *interpolated[3];
b40cd4e0 141 int16_t (*motion_val_base[2])[2];
7bc9090a 142 uint32_t *mb_type_base;
bb198e19 143#define MB_TYPE_INTRA MB_TYPE_INTRA4x4 //default mb_type if theres just one type
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144#define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4)
145#define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16)
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146#define IS_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
147#define IS_INTRA(a) ((a)&7)
0da71265 148#define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8))
7bc9090a 149#define IS_SKIP(a) ((a)&MB_TYPE_SKIP)
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150#define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
151#define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED)
152#define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2)
7bc9090a 153#define IS_GMC(a) ((a)&MB_TYPE_GMC)
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154#define IS_16X16(a) ((a)&MB_TYPE_16x16)
155#define IS_16X8(a) ((a)&MB_TYPE_16x8)
156#define IS_8X16(a) ((a)&MB_TYPE_8x16)
157#define IS_8X8(a) ((a)&MB_TYPE_8x8)
158#define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused
159#define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused
160#define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused
161#define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused
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162#define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED)
163#define IS_QUANT(a) ((a)&MB_TYPE_QUANT)
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164#define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))
165#define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list)))) ///< does this mb use listX, note doesnt work if subMBs
b40cd4e0 166#define HAS_CBP(a) ((a)&MB_TYPE_CBP)
0da71265 167
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168 int field_poc[2]; ///< h264 top/bottom POC
169 int poc; ///< h264 frame POC
170 int frame_num; ///< h264 frame_num
171 int pic_id; ///< h264 pic_num or long_term_pic_idx
172 int long_ref; ///< 1->long term reference 0->short term reference
173
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174 int mb_var_sum; ///< sum of MB variance for current frame
175 int mc_mb_var_sum; ///< motion compensated MB variance for current frame
176 uint16_t *mb_var; ///< Table for MB variances
177 uint16_t *mc_mb_var; ///< Table for motion compensated MB variances
178 uint8_t *mb_mean; ///< Table for MB luminance
8fc7c993 179 int32_t *mb_cmp_score; ///< Table for MB cmp scores, for mb decission FIXME remove
0d1e9246 180 int b_frame_score; /* */
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181} Picture;
182
d7425f59 183typedef struct ParseContext{
0c1a9eda 184 uint8_t *buffer;
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185 int index;
186 int last_index;
187 int buffer_size;
bb463d81 188 uint32_t state; ///< contains the last few bytes in MSB order
d7425f59 189 int frame_start_found;
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190 int overread; ///< the number of bytes which where irreversibly read from the next frame
191 int overread_index; ///< the index into ParseContext.buffer of the overreaded bytes
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192} ParseContext;
193
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194struct MpegEncContext;
195
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196/**
197 * Motion estimation context.
198 */
1457ab52 199typedef struct MotionEstContext{
1f202b0d 200 AVCodecContext *avctx;
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201 int skip; ///< set if ME is skiped for the current MB
202 int co_located_mv[4][2]; ///< mv from last p frame for direct mode ME
1457ab52 203 int direct_basis_mv[4][2];
277f4827 204 uint8_t *scratchpad; ///< data area for the me algo, so that the ME doesnt need to malloc/free
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205 uint8_t *best_mb;
206 uint8_t *temp_mb[2];
207 uint8_t *temp;
208 int best_bits;
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209 uint32_t *map; ///< map to avoid duplicate evaluations
210 uint32_t *score_map; ///< map to store the scores
1457ab52 211 int map_generation;
826f429a 212 int pre_penalty_factor;
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213 int penalty_factor;
214 int sub_penalty_factor;
67725183 215 int mb_penalty_factor;
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216 int flags;
217 int sub_flags;
218 int mb_flags;
277f4827 219 int pre_pass; ///< = 1 for the pre pass
826f429a 220 int dia_size;
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221 int xmin;
222 int xmax;
223 int ymin;
224 int ymax;
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225 int pred_x;
226 int pred_y;
227 uint8_t *src[4][4];
228 uint8_t *ref[4][4];
229 int stride;
230 int uvstride;
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231 /* temp variables for picture complexity calculation */
232 int mc_mb_var_sum_temp;
233 int mb_var_sum_temp;
234 int scene_change_score;
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235/* cmp, chroma_cmp;*/
236 op_pixels_func (*hpel_put)[4];
237 op_pixels_func (*hpel_avg)[4];
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238 qpel_mc_func (*qpel_put)[16];
239 qpel_mc_func (*qpel_avg)[16];
30952237 240 uint8_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV
2750b827 241 uint8_t *current_mv_penalty;
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242 int (*sub_motion_search)(struct MpegEncContext * s,
243 int *mx_ptr, int *my_ptr, int dmin,
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244 int src_index, int ref_index,
245 int size, int h);
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246}MotionEstContext;
247
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248/**
249 * MpegEncContext.
250 */
de6d9b64 251typedef struct MpegEncContext {
58f26ba9 252 struct AVCodecContext *avctx;
de6d9b64 253 /* the following parameters must be initialized before encoding */
277f4827 254 int width, height;///< picture size. must be a multiple of 16
de6d9b64 255 int gop_size;
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256 int intra_only; ///< if true, only intra pictures are generated
257 int bit_rate; ///< wanted bit rate
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258 enum OutputFormat out_format; ///< output format
259 int h263_pred; ///< use mpeg4/h263 ac/dc predictions
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260
261/* the following codec id fields are deprecated in favor of codec_id */
277f4827 262 int h263_plus; ///< h263 plus headers
277f4827 263 int h263_msmpeg4; ///< generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)
d4f5d74a 264 int h263_flv; ///< use flv h263 header
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265
266 int codec_id; /* see CODEC_ID_xxx */
277f4827 267 int fixed_qscale; ///< fixed qscale if non zero
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268 int encoding; ///< true if we are encoding (vs decoding)
269 int flags; ///< AVCodecContext.flags (HQ, MV4, ...)
303e50e6 270 int flags2; ///< AVCodecContext.flags2
277f4827 271 int max_b_frames; ///< max number of b-frames for encoding
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272 int luma_elim_threshold;
273 int chroma_elim_threshold;
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274 int strict_std_compliance; ///< strictly follow the std (MPEG4, ...)
275 int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
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276 /* the following fields are managed internally by the encoder */
277
277f4827 278 /** bit output */
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279 PutBitContext pb;
280
281 /* sequence parameters */
282 int context_initialized;
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283 int input_picture_number; ///< used to set pic->display_picture_number, shouldnt be used for/by anything else
284 int coded_picture_number; ///< used to set pic->coded_picture_number, shouldnt be used for/by anything else
285 int picture_number; //FIXME remove, unclear definition
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286 int picture_in_gop_number; ///< 0-> first pic in gop, ...
287 int b_frames_since_non_b; ///< used for encoding, relative to not yet reordered input
e51f4948 288 int64_t user_specified_pts;///< last non zero pts from AVFrame which was passed into avcodec_encode_video()
277f4827 289 int mb_width, mb_height; ///< number of MBs horizontally & vertically
7bc9090a 290 int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressng of left & top MBs withoutt sig11
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291 int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressng
292 int b4_stride; ///< 4*mb_width+1 used for some 4x4 block arrays to allow simple addressng
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293 int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replicateion)
294 int mb_num; ///< number of MBs of a picture
295 int linesize; ///< line size, in bytes, may be different from width
296 int uvlinesize; ///< line size, for chroma in bytes, may be different from width
b465449e 297 Picture *picture; ///< main picture buffer
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298 Picture **input_picture; ///< next pictures on display order for encoding
299 Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding
b536d0aa 300
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301 int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
302 int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
303 struct MpegEncContext *thread_context[MAX_THREADS];
304
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305 /**
306 * copy of the previous picture structure.
307 * note, linesize & data, might not match the previous picture (for field pictures)
308 */
309 Picture last_picture;
310
311 /**
312 * copy of the next picture structure.
313 * note, linesize & data, might not match the next picture (for field pictures)
314 */
315 Picture next_picture;
316
317 /**
318 * copy of the source picture structure for encoding.
319 * note, linesize & data, might not match the source picture (for field pictures)
320 */
321 Picture new_picture;
322
323 /**
324 * copy of the current picture structure.
325 * note, linesize & data, might not match the current picture (for field pictures)
326 */
277f4827 327 Picture current_picture; ///< buffer to store the decompressed current picture
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328
329 Picture *last_picture_ptr; ///< pointer to the previous picture.
330 Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
b536d0aa 331 Picture *current_picture_ptr; ///< pointer to the current picture
0c9bbaec 332 uint8_t *visualization_buffer[3]; //< temporary buffer vor MV visualization
277f4827 333 int last_dc[3]; ///< last DC values for MPEG1
137c8468 334 int16_t *dc_val_base;
277f4827 335 int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
0da71265 336 int16_t dc_cache[4*5];
de6d9b64 337 int y_dc_scale, c_dc_scale;
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338 uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
339 uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
332f9ac4 340 const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (h263)
137c8468 341 uint8_t *coded_block_base;
277f4827 342 uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
137c8468 343 int16_t (*ac_val_base)[16];
277f4827 344 int16_t (*ac_val[3])[16]; ///< used for for mpeg4 AC prediction, all 3 arrays must be continuous
de6d9b64 345 int ac_pred;
277f4827 346 uint8_t *prev_pict_types; ///< previous picture types in bitstream order, used for mb skip
f943e138 347#define PREV_PICT_TYPES_BUFFER_SIZE 256
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348 int mb_skiped; ///< MUST BE SET only during DECODING
349 uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
9dbcbd92 350 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
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351 uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
352 uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
353 uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
f7b47594 354 uint8_t *allocated_edge_emu_buffer;
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355 uint8_t *edge_emu_buffer; ///< points into the middle of allocated_edge_emu_buffer
356 uint8_t *rd_scratchpad; ///< scartchpad for rate distortion mb decission
357 uint8_t *obmc_scratchpad;
358 uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers
de6d9b64 359
277f4827 360 int qscale; ///< QP
332f9ac4 361 int chroma_qscale; ///< chroma QP
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362 int lambda; ///< lagrange multipler used in rate distortion
363 int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
364 int *lambda_table;
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365 int adaptive_quant; ///< use adaptive quantization
366 int dquant; ///< qscale difference to prev qscale
367 int pict_type; ///< I_TYPE, P_TYPE, B_TYPE, ...
14e2a940 368 int last_pict_type; //FIXME removes
277f4827 369 int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol
14e2a940 370 int dropable;
de6d9b64 371 int frame_rate_index;
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372 int frame_rate_ext_n; ///< MPEG-2 specific framerate modificators (numerator)
373 int frame_rate_ext_d; ///< MPEG-2 specific framerate modificators (denominator)
374
de6d9b64 375 /* motion compensation */
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376 int unrestricted_mv; ///< mv can point outside of the coded picture
377 int h263_long_vectors; ///< use horrible h263v1 long vector mode
0da71265 378 int decode; ///< if 0 then decoding will be skiped (for encoding b frames for example)
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379
380 DSPContext dsp; ///< pointers for accelerated dsp fucntions
381 int f_code; ///< forward MV resolution
382 int b_code; ///< backward MV resolution for B Frames (mpeg4)
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383 int16_t (*p_mv_table_base)[2];
384 int16_t (*b_forw_mv_table_base)[2];
385 int16_t (*b_back_mv_table_base)[2];
386 int16_t (*b_bidir_forw_mv_table_base)[2];
387 int16_t (*b_bidir_back_mv_table_base)[2];
388 int16_t (*b_direct_mv_table_base)[2];
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389 int16_t (*p_field_mv_table_base[2][2])[2];
390 int16_t (*b_field_mv_table_base[2][2][2])[2];
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391 int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) p-frame encoding
392 int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode b-frame encoding
393 int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode b-frame encoding
394 int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
395 int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
396 int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode b-frame encoding
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397 int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced p-frame encoding
398 int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced b-frame encoding
399 uint8_t (*p_field_select_table[2]);
400 uint8_t (*b_field_select_table[2][2]);
277f4827 401 int me_method; ///< ME algorithm
de6d9b64 402 int mv_dir;
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403#define MV_DIR_BACKWARD 1
404#define MV_DIR_FORWARD 2
277f4827 405#define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
de6d9b64 406 int mv_type;
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407#define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
408#define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV)
409#define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block
410#define MV_TYPE_FIELD 3 ///< 2 vectors, one per field
411#define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors
412 /**motion vectors for a macroblock
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413 first coordinate : 0 = forward 1 = backward
414 second " : depend on type
415 third " : 0 = x, 1 = y
416 */
417 int mv[2][4][2];
418 int field_select[2][2];
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419 int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4
420 uint8_t *fcode_tab; ///< smallest fcode needed for each MV
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421
422 MotionEstContext me;
de6d9b64 423
277f4827 424 int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
91029be7 425 for b-frames rounding mode is allways 0 */
de6d9b64 426
277f4827 427 int hurry_up; /**< when set to 1 during decoding, b frames will be skiped
2417652e 428 when set to 2 idct/dequant will be skipped too */
c5d309f2 429
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430 /* macroblock layer */
431 int mb_x, mb_y;
9b8709d1 432 int mb_skip_run;
de6d9b64 433 int mb_intra;
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434 uint16_t *mb_type; ///< Table for candidate MB types for encoding
435#define CANDIDATE_MB_TYPE_INTRA 0x01
436#define CANDIDATE_MB_TYPE_INTER 0x02
437#define CANDIDATE_MB_TYPE_INTER4V 0x04
438#define CANDIDATE_MB_TYPE_SKIPED 0x08
7bc9090a 439//#define MB_TYPE_GMC 0x10
7f2fe444 440
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441#define CANDIDATE_MB_TYPE_DIRECT 0x10
442#define CANDIDATE_MB_TYPE_FORWARD 0x20
443#define CANDIDATE_MB_TYPE_BACKWARD 0x40
444#define CANDIDATE_MB_TYPE_BIDIR 0x80
445
446#define CANDIDATE_MB_TYPE_INTER_I 0x100
447#define CANDIDATE_MB_TYPE_FORWARD_I 0x200
448#define CANDIDATE_MB_TYPE_BACKWARD_I 0x400
449#define CANDIDATE_MB_TYPE_BIDIR_I 0x800
4278e7a6 450
277f4827 451 int block_index[6]; ///< index to current MB in block based arrays with edges
4278e7a6 452 int block_wrap[6];
7d1c3fc1 453 uint8_t *dest[3];
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454
455 int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride
4278e7a6 456
277f4827 457 /** matrix transmitted in the bitstream */
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458 uint16_t intra_matrix[64];
459 uint16_t chroma_intra_matrix[64];
460 uint16_t inter_matrix[64];
461 uint16_t chroma_inter_matrix[64];
1984f635 462#define QUANT_BIAS_SHIFT 8
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463 int intra_quant_bias; ///< bias for the quantizer
464 int inter_quant_bias; ///< bias for the quantizer
465 int min_qcoeff; ///< minimum encodable coefficient
466 int max_qcoeff; ///< maximum encodable coefficient
467 int ac_esc_length; ///< num of bits needed to encode the longest esc
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468 uint8_t *intra_ac_vlc_length;
469 uint8_t *intra_ac_vlc_last_length;
470 uint8_t *inter_ac_vlc_length;
471 uint8_t *inter_ac_vlc_last_length;
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472 uint8_t *luma_dc_vlc_length;
473 uint8_t *chroma_dc_vlc_length;
c442d75c 474#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
477ab036 475
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476 int coded_score[6];
477
277f4827 478 /** precomputed matrix (combine qscale and DCT renorm) */
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479 int (*q_intra_matrix)[64];
480 int (*q_inter_matrix)[64];
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481 /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
482 uint16_t (*q_intra_matrix16)[2][64];
483 uint16_t (*q_inter_matrix16)[2][64];
5e5c247a 484 int block_last_index[12]; ///< last non zero coefficient in block
2ad1516a 485 /* scantables */
05c4072b 486 ScanTable __align8 intra_scantable;
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487 ScanTable intra_h_scantable;
488 ScanTable intra_v_scantable;
277f4827 489 ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage
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490
491 /* noise reduction */
492 int (*dct_error_sum)[64];
493 int dct_count[2];
494 uint16_t (*dct_offset)[64];
de6d9b64 495
277f4827 496 void *opaque; ///< private data for the user
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497
498 /* bit rate control */
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499 int64_t wanted_bits;
500 int64_t total_bits;
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501 int frame_bits; ///< bits used for the current frame
502 RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
9cdd6a24 503
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504 /* statistics, used for 2-pass encoding */
505 int mv_bits;
506 int header_bits;
507 int i_tex_bits;
508 int p_tex_bits;
509 int i_count;
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510 int f_count;
511 int b_count;
098eefe1 512 int skip_count;
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513 int misc_bits; ///< cbp, mb_type
514 int last_bits; ///< temp var used for calculating the above vars
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515
516 /* error concealment / resync */
7bc9090a 517 int error_count;
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518 uint8_t *error_status_table; ///< table of the error status of each MB
519#define VP_START 1 ///< current MB is the first after a resync marker
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520#define AC_ERROR 2
521#define DC_ERROR 4
522#define MV_ERROR 8
523#define AC_END 16
524#define DC_END 32
525#define MV_END 64
526//FIXME some prefix?
527
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528 int resync_mb_x; ///< x position of last resync marker
529 int resync_mb_y; ///< y position of last resync marker
530 GetBitContext last_resync_gb; ///< used to search for the next resync marker
531 int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only)
532 int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed b frames
7f2fe444 533 int error_resilience;
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534
535 ParseContext parse_context;
098eefe1 536
102d3908 537 /* H.263 specific */
644d98a4 538 int gob_index;
dba019da 539 int obmc; ///< overlapped block motion compensation
d140623f 540
544286b3 541 /* H.263+ specific */
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542 int umvplus; ///< == H263+ && unrestricted_mv
543 int h263_aic; ///< Advanded INTRA Coding (AIC)
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544 int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
545 int h263_slice_structured;
dba019da 546 int alt_inter_vlc; ///< alternative inter vlc
68b94c35 547 int modified_quant;
ba58dabc 548 int loop_filter;
b056e73c 549 int custom_pcf;
544286b3 550
de6d9b64 551 /* mpeg4 specific */
6f91bcd1 552 int time_increment_resolution;
277f4827 553 int time_increment_bits; ///< number of bits to represent the fractional part of time
9dbcbd92 554 int last_time_base;
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555 int time_base; ///< time in seconds of last I,P,S Frame
556 int64_t time; ///< time of current frame
0c1a9eda 557 int64_t last_non_b_time;
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558 uint16_t pp_time; ///< time distance between the last 2 p,s,i frames
559 uint16_t pb_time; ///< time distance between the last b and p,s,i frame
0c1a9eda 560 uint16_t pp_field_time;
277f4827 561 uint16_t pb_field_time; ///< like above, just for interlaced
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562 int shape;
563 int vol_sprite_usage;
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564 int sprite_width;
565 int sprite_height;
566 int sprite_left;
567 int sprite_top;
568 int sprite_brightness_change;
73c8e514 569 int num_sprite_warping_points;
44eb4951 570 int real_sprite_warping_points;
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571 int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
572 int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
573 int sprite_shift[2]; ///< sprite shift [isChroma]
73c8e514 574 int mcsel;
1a565432 575 int quant_precision;
277f4827 576 int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
cc9ba006 577 int scalability;
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578 int hierachy_type;
579 int enhancement_type;
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580 int new_pred;
581 int reduced_res_vop;
0da71265 582 int aspect_ratio_info; //FIXME remove
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583 int sprite_warping_accuracy;
584 int low_latency_sprite;
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585 int data_partitioning; ///< data partitioning flag from header
586 int partitioned_frame; ///< is current frame partitioned
587 int rvlc; ///< reversible vlc
588 int resync_marker; ///< could this stream contain resync markers
589 int low_delay; ///< no reordering needed / has no b-frames
1ff662cc 590 int vo_type;
277f4827 591 int vol_control_parameters; ///< does the stream contain the low_delay flag, used to workaround buggy encoders
34790165 592 int intra_dc_threshold; ///< QP above whch the ac VLC should be used for intra dc
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593 PutBitContext tex_pb; ///< used for data partitioned VOPs
594 PutBitContext pb2; ///< used for data partitioned VOPs
d930ef19 595 int mpeg_quant;
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596 int t_frame; ///< time distance of first I -> B, used for interlaced b frames
597 int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4
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598
599 /* divx specific, used to workaround (many) bugs in divx5 */
600 int divx_version;
601 int divx_build;
d5a21172 602 int divx_packed;
eec1c6b9 603#define BITSTREAM_BUFFER_SIZE 1024*256
0c1a9eda 604 uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
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605 int bitstream_buffer_size;
606
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607 int xvid_build;
608
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609 /* lavc specific stuff, used to workaround bugs in libavcodec */
610 int ffmpeg_version;
611 int lavc_build;
612
de6d9b64 613 /* RV10 specific */
277f4827 614 int rv10_version; ///< RV10 version: 0 or 3
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615 int rv10_first_dc_coded[3];
616
617 /* MJPEG specific */
618 struct MJpegContext *mjpeg_ctx;
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619 int mjpeg_vsample[3]; ///< vertical sampling factors, default = {2, 1, 1}
620 int mjpeg_hsample[3]; ///< horizontal sampling factors, default = {2, 1, 1}
621 int mjpeg_write_tables; ///< do we want to have quantisation- and huffmantables in the jpeg file ?
622 int mjpeg_data_only_frames; ///< frames only with SOI, SOS and EOI markers
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623
624 /* MSMPEG4 specific */
625 int mv_table_index;
626 int rl_table_index;
627 int rl_chroma_table_index;
628 int dc_table_index;
629 int use_skip_mb_code;
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630 int slice_height; ///< in macroblocks
631 int first_slice_line; ///< used in mpeg4 too to handle resync markers
ae40484c 632 int flipflop_rounding;
277f4827 633 int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
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634 int per_mb_rl_table;
635 int esc3_level_length;
636 int esc3_run_length;
277f4827 637 /** [mb_intra][isChroma][level][run][last] */
6b460aa3 638 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
de0f2f4c 639 int inter_intra_pred;
1457ab52 640 int mspel;
0151a6f5 641
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642 /* decompression specific */
643 GetBitContext gb;
644
1e491e29 645 /* Mpeg1 specific */
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646 int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
647 int last_mv_dir; ///< last mv_dir, used for b frame encoding
0da71265 648 int broken_link; ///< no_output_of_prior_pics_flag
d60a8f85 649 uint8_t *vbv_delay_ptr; ///< pointer to vbv_delay in the bitstream
1e491e29 650
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651 /* MPEG2 specific - I wish I had not to support this mess. */
652 int progressive_sequence;
653 int mpeg_f_code[2][2];
654 int picture_structure;
655/* picture type */
656#define PICT_TOP_FIELD 1
657#define PICT_BOTTOM_FIELD 2
658#define PICT_FRAME 3
659
660 int intra_dc_precision;
661 int frame_pred_frame_dct;
662 int top_field_first;
663 int concealment_motion_vectors;
664 int q_scale_type;
665 int intra_vlc_format;
666 int alternate_scan;
667 int repeat_first_field;
668 int chroma_420_type;
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669 int chroma_format;
670#define CHROMA_420 1
671#define CHROMA_422 2
672#define CHROMA_444 3
673
de6d9b64 674 int progressive_frame;
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675 int full_pel[2];
676 int interlaced_dct;
de6d9b64 677 int first_slice;
c3bf0288 678 int first_field; ///< is 1 for the first field of a field picture 0 otherwise
ba58dabc 679
644d98a4 680 /* RTP specific */
e4eadb4b 681 int rtp_mode;
ba58dabc 682
0c1a9eda 683 uint8_t *ptr_lastgob;
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684 int swap_uv;//vcr2 codec is mpeg2 varint with UV swaped
685 short * pblocks[12];
644d98a4 686
277f4827 687 DCTELEM (*block)[64]; ///< points to one of the following blocks
45686da2 688 DCTELEM (*blocks)[6][64]; // for HQ mode we need to keep the best block
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689 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
690#define SLICE_OK 0
691#define SLICE_ERROR -1
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692#define SLICE_END -2 ///<end marker found
693#define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
4d2858de 694
d50635cd 695 void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s,
67309e49 696 DCTELEM *block/*align 16*/, int n, int qscale);
d50635cd 697 void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s,
67309e49 698 DCTELEM *block/*align 16*/, int n, int qscale);
d50635cd 699 void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s,
67309e49 700 DCTELEM *block/*align 16*/, int n, int qscale);
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701 void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s,
702 DCTELEM *block/*align 16*/, int n, int qscale);
703 void (*dct_unquantize_h263_intra)(struct MpegEncContext *s,
704 DCTELEM *block/*align 16*/, int n, int qscale);
705 void (*dct_unquantize_h263_inter)(struct MpegEncContext *s,
706 DCTELEM *block/*align 16*/, int n, int qscale);
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707 void (*dct_unquantize_h261_intra)(struct MpegEncContext *s,
708 DCTELEM *block/*align 16*/, int n, int qscale);
709 void (*dct_unquantize_h261_inter)(struct MpegEncContext *s,
710 DCTELEM *block/*align 16*/, int n, int qscale);
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711 void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
712 DCTELEM *block/*align 16*/, int n, int qscale);
713 void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
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714 DCTELEM *block/*align 16*/, int n, int qscale);
715 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
3a87ac94 716 int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
783df5f3 717 void (*denoise_dct)(struct MpegEncContext *s, DCTELEM *block);
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718} MpegEncContext;
719
4d2858de 720
defdfc9a 721int DCT_common_init(MpegEncContext *s);
3edcacde 722void MPV_decode_defaults(MpegEncContext *s);
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723int MPV_common_init(MpegEncContext *s);
724void MPV_common_end(MpegEncContext *s);
725void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
d6db1c9c 726int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
de6d9b64 727void MPV_frame_end(MpegEncContext *s);
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728int MPV_encode_init(AVCodecContext *avctx);
729int MPV_encode_end(AVCodecContext *avctx);
730int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
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731#ifdef HAVE_MMX
732void MPV_common_init_mmx(MpegEncContext *s);
733#endif
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734#ifdef ARCH_ALPHA
735void MPV_common_init_axp(MpegEncContext *s);
736#endif
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737#ifdef HAVE_MLIB
738void MPV_common_init_mlib(MpegEncContext *s);
739#endif
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740#ifdef HAVE_MMI
741void MPV_common_init_mmi(MpegEncContext *s);
742#endif
83f238cb 743#ifdef ARCH_ARMV4L
d43b10ec 744void MPV_common_init_armv4l(MpegEncContext *s);
83f238cb 745#endif
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746#ifdef ARCH_POWERPC
747void MPV_common_init_ppc(MpegEncContext *s);
748#endif
0c1a9eda 749extern void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
0c1a9eda 750void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length);
7f2fe444 751void ff_clean_intra_table_entries(MpegEncContext *s);
3d2e8cce 752void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
640950c7 753void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
c009df3f 754void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize, int block_w, int block_h,
1457ab52 755 int src_x, int src_y, int w, int h);
bb463d81 756#define END_NOT_FOUND -100
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757int ff_combine_frame(ParseContext *pc, int next, uint8_t **buf, int *buf_size);
758void ff_parse_close(AVCodecParserContext *s);
7a06ff14 759void ff_mpeg_flush(AVCodecContext *avctx);
0c9bbaec 760void ff_print_debug_info(MpegEncContext *s, AVFrame *pict);
d6eb3c50 761void ff_write_quant_matrix(PutBitContext *pb, int16_t *matrix);
5f194811 762int ff_find_unused_picture(MpegEncContext *s, int shared);
821cb11f 763void ff_denoise_dct(MpegEncContext *s, DCTELEM *block);
c62c07d3 764void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
59b571c1 765
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766void ff_er_frame_start(MpegEncContext *s);
767void ff_er_frame_end(MpegEncContext *s);
768void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status);
769
770
a33c7159 771extern enum PixelFormat ff_yuv420p_list[2];
de6d9b64 772
7d1c3fc1 773void ff_init_block_index(MpegEncContext *s);
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774
775static inline void ff_update_block_index(MpegEncContext *s){
776 s->block_index[0]+=2;
777 s->block_index[1]+=2;
778 s->block_index[2]+=2;
779 s->block_index[3]+=2;
780 s->block_index[4]++;
781 s->block_index[5]++;
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782 s->dest[0]+= 16;
783 s->dest[1]+= 8;
784 s->dest[2]+= 8;
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785}
786
4d2a4834 787static inline int get_bits_diff(MpegEncContext *s){
fe455f33 788 const int bits= put_bits_count(&s->pb);
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789 const int last= s->last_bits;
790
791 s->last_bits = bits;
792
793 return bits - last;
794}
4d2858de 795
de6d9b64 796/* motion_est.c */
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797void ff_estimate_p_frame_motion(MpegEncContext * s,
798 int mb_x, int mb_y);
799void ff_estimate_b_frame_motion(MpegEncContext * s,
800 int mb_x, int mb_y);
801int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
802void ff_fix_long_p_mvs(MpegEncContext * s);
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803void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
804 int16_t (*mv_table)[2], int f_code, int type, int truncate);
1457ab52 805void ff_init_me(MpegEncContext *s);
f5fb6b34 806int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
de6d9b64 807
4d2858de 808
de6d9b64 809/* mpeg12.c */
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810extern const int16_t ff_mpeg1_default_intra_matrix[64];
811extern const int16_t ff_mpeg1_default_non_intra_matrix[64];
812extern uint8_t ff_mpeg1_dc_scale_table[128];
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FB
813
814void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
815void mpeg1_encode_mb(MpegEncContext *s,
816 DCTELEM block[6][64],
817 int motion_x, int motion_y);
0151a6f5 818void ff_mpeg1_encode_init(MpegEncContext *s);
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819void ff_mpeg1_encode_slice_header(MpegEncContext *s);
820void ff_mpeg1_clean_buffers(MpegEncContext *s);
e96682e6 821int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);
de6d9b64 822
4d2858de 823
277f4827 824/** RLTable. */
de6d9b64 825typedef struct RLTable {
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826 int n; ///< number of entries of table_vlc minus 1
827 int last; ///< number of values for last = 0
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828 const uint16_t (*table_vlc)[2];
829 const int8_t *table_run;
830 const int8_t *table_level;
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831 uint8_t *index_run[2]; ///< encoding only
832 int8_t *max_level[2]; ///< encoding & decoding
833 int8_t *max_run[2]; ///< encoding & decoding
834 VLC vlc; ///< decoding only deprected FIXME remove
835 RL_VLC_ELEM *rl_vlc[32]; ///< decoding only
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836} RLTable;
837
838void init_rl(RLTable *rl);
839void init_vlc_rl(RLTable *rl);
840
3232bc88 841static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
de6d9b64
FB
842{
843 int index;
844 index = rl->index_run[last][run];
845 if (index >= rl->n)
846 return rl->n;
847 if (level > rl->max_level[last][run])
848 return rl->n;
849 return index + level - 1;
850}
851
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852extern uint8_t ff_mpeg4_y_dc_scale_table[32];
853extern uint8_t ff_mpeg4_c_dc_scale_table[32];
68b94c35 854extern uint8_t ff_aic_dc_scale_table[32];
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855extern const int16_t ff_mpeg4_default_intra_matrix[64];
856extern const int16_t ff_mpeg4_default_non_intra_matrix[64];
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857extern const uint8_t ff_h263_chroma_qscale_table[32];
858extern const uint8_t ff_h263_loop_filter_strength[32];
68b94c35 859
554daa24 860
e96682e6 861/* h263.c, h263dec.c */
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862int ff_h263_decode_init(AVCodecContext *avctx);
863int ff_h263_decode_frame(AVCodecContext *avctx,
864 void *data, int *data_size,
0c1a9eda 865 uint8_t *buf, int buf_size);
1457ab52 866int ff_h263_decode_end(AVCodecContext *avctx);
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867void h263_encode_mb(MpegEncContext *s,
868 DCTELEM block[6][64],
869 int motion_x, int motion_y);
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870void mpeg4_encode_mb(MpegEncContext *s,
871 DCTELEM block[6][64],
872 int motion_x, int motion_y);
de6d9b64 873void h263_encode_picture_header(MpegEncContext *s, int picture_number);
44a2950f 874void ff_flv_encode_picture_header(MpegEncContext *s, int picture_number);
ba58dabc 875void h263_encode_gob_header(MpegEncContext * s, int mb_line);
137c8468 876int16_t *h263_pred_motion(MpegEncContext * s, int block, int dir,
de6d9b64 877 int *px, int *py);
0e15384d 878void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
de6d9b64 879 int dir);
91029be7 880void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
de6d9b64 881void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
45870f57 882void h263_encode_init(MpegEncContext *s);
de6d9b64
FB
883void h263_decode_init_vlc(MpegEncContext *s);
884int h263_decode_picture_header(MpegEncContext *s);
4d2858de 885int ff_h263_decode_gob_header(MpegEncContext *s);
b704e742 886int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
7d1c3fc1 887void ff_h263_update_motion_val(MpegEncContext * s);
cdb4e730 888void ff_h263_loop_filter(MpegEncContext * s);
554daa24 889void ff_set_qscale(MpegEncContext * s, int qscale);
ba58dabc
MN
890int ff_h263_decode_mba(MpegEncContext *s);
891void ff_h263_encode_mba(MpegEncContext *s);
b704e742 892
de6d9b64 893int intel_h263_decode_picture_header(MpegEncContext *s);
d4f5d74a 894int flv_h263_decode_picture_header(MpegEncContext *s);
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895int ff_h263_decode_mb(MpegEncContext *s,
896 DCTELEM block[6][64]);
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MN
897int ff_mpeg4_decode_mb(MpegEncContext *s,
898 DCTELEM block[6][64]);
de6d9b64 899int h263_get_picture_format(int width, int height);
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900void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
901void ff_mpeg4_clean_buffers(MpegEncContext *s);
902void ff_mpeg4_stuffing(PutBitContext * pbc);
903void ff_mpeg4_init_partitions(MpegEncContext *s);
904void ff_mpeg4_merge_partitions(MpegEncContext *s);
c5d309f2 905void ff_clean_mpeg4_qscales(MpegEncContext *s);
9e4c6948 906void ff_clean_h263_qscales(MpegEncContext *s);
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907int ff_mpeg4_decode_partitions(MpegEncContext *s);
908int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
909int ff_h263_resync(MpegEncContext *s);
910int ff_h263_get_gob_height(MpegEncContext *s);
7bc9090a 911int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
4df8ca9d 912int ff_h263_round_chroma(int x);
5e13a730 913void ff_h263_encode_motion(MpegEncContext * s, int val, int f_code);
4df8ca9d 914int ff_mpeg4_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);
4d2858de 915
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916
917/* rv10.c */
918void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
919int rv_decode_dc(MpegEncContext *s, int n);
920
4d2858de 921
de6d9b64
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922/* msmpeg4.c */
923void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
ae40484c 924void msmpeg4_encode_ext_header(MpegEncContext * s);
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925void msmpeg4_encode_mb(MpegEncContext * s,
926 DCTELEM block[6][64],
927 int motion_x, int motion_y);
de6d9b64 928int msmpeg4_decode_picture_header(MpegEncContext * s);
ae40484c 929int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
0151a6f5
MN
930int ff_msmpeg4_decode_init(MpegEncContext *s);
931void ff_msmpeg4_encode_init(MpegEncContext *s);
1457ab52 932int ff_wmv2_decode_picture_header(MpegEncContext * s);
b1609412 933int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s);
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934void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
935void ff_mspel_motion(MpegEncContext *s,
0c1a9eda
ZK
936 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
937 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
1457ab52
MN
938 int motion_x, int motion_y, int h);
939int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
940void ff_wmv2_encode_mb(MpegEncContext * s,
941 DCTELEM block[6][64],
942 int motion_x, int motion_y);
de6d9b64 943
c009df3f 944/* mjpeg.c */
de6d9b64
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945int mjpeg_init(MpegEncContext *s);
946void mjpeg_close(MpegEncContext *s);
947void mjpeg_encode_mb(MpegEncContext *s,
948 DCTELEM block[6][64]);
949void mjpeg_picture_header(MpegEncContext *s);
950void mjpeg_picture_trailer(MpegEncContext *s);
9c3d33d6 951void ff_mjpeg_stuffing(PutBitContext * pbc);
8b4c7dbc 952
4d2858de 953
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954/* rate control */
955int ff_rate_control_init(MpegEncContext *s);
c5d309f2 956float ff_rate_estimate_qscale(MpegEncContext *s);
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957void ff_write_pass1_stats(MpegEncContext *s);
958void ff_rate_control_uninit(MpegEncContext *s);
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959double ff_eval(char *s, double *const_value, const char **const_name,
960 double (**func1)(void *, double), const char **func1_name,
3aa102be
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961 double (**func2)(void *, double, double), char **func2_name,
962 void *opaque);
11dffbe1 963int ff_vbv_update(MpegEncContext *s, int frame_size);
3aa102be 964
8b4c7dbc 965
cd4af68a 966#endif /* AVCODEC_MPEGVIDEO_H */