hadamard8_diff8x8 in AltiVec, the 16bits edition by (Romain Dolbeau <dolbeau at irisa...
[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,
35 FMT_H263,
9dbcbd92 36 FMT_MJPEG,
0da71265 37 FMT_H264,
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38};
39
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40#define EDGE_WIDTH 16
41
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42#define MPEG_BUF_SIZE (16 * 1024)
43
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44#define QMAT_SHIFT_MMX 16
45#define QMAT_SHIFT 22
2f349de2 46
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47#define MAX_FCODE 7
48#define MAX_MV 2048
1e491e29 49
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50#define MAX_THREADS 8
51
0d1e9246 52#define MAX_PICTURE_COUNT 15
45870f57 53
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54#define ME_MAP_SIZE 64
55#define ME_MAP_SHIFT 3
56#define ME_MAP_MV_BITS 11
57
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58/* run length table */
59#define MAX_RUN 64
60#define MAX_LEVEL 64
61
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62#define I_TYPE FF_I_TYPE ///< Intra
63#define P_TYPE FF_P_TYPE ///< Predicted
64#define B_TYPE FF_B_TYPE ///< Bi-dir predicted
65#define S_TYPE FF_S_TYPE ///< S(GMC)-VOP MPEG4
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66#define SI_TYPE FF_SI_TYPE ///< Switching Intra
67#define SP_TYPE FF_SP_TYPE ///< Switching Predicted
140cb663 68
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69typedef struct Predictor{
70 double coeff;
71 double count;
72 double decay;
73} Predictor;
74
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75typedef struct RateControlEntry{
76 int pict_type;
c5d309f2 77 float qscale;
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78 int mv_bits;
79 int i_tex_bits;
80 int p_tex_bits;
81 int misc_bits;
0c1a9eda 82 uint64_t expected_bits;
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83 int new_pict_type;
84 float new_qscale;
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85 int mc_mb_var_sum;
86 int mb_var_sum;
87 int i_count;
88 int f_code;
89 int b_code;
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90}RateControlEntry;
91
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92/**
93 * rate control context.
94 */
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95typedef struct RateControlContext{
96 FILE *stats_file;
277f4827 97 int num_entries; ///< number of RateControlEntries
8b4c7dbc 98 RateControlEntry *entry;
fb066639 99 double buffer_index; ///< amount of bits in the video/audio buffer
3aa102be 100 Predictor pred[5];
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101 double short_term_qsum; ///< sum of recent qscales
102 double short_term_qcount; ///< count of recent qscales
103 double pass1_rc_eq_output_sum;///< sum of the output of the rc equation, this is used for normalization
104 double pass1_wanted_bits; ///< bits which should have been outputed by the pass1 code (including complexity init)
3aa102be 105 double last_qscale;
277f4827 106 double last_qscale_for[5]; ///< last qscale for a specific pict type, used for max_diff & ipb factor stuff
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107 int last_mc_mb_var_sum;
108 int last_mb_var_sum;
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109 uint64_t i_cplx_sum[5];
110 uint64_t p_cplx_sum[5];
111 uint64_t mv_bits_sum[5];
112 uint64_t qscale_sum[5];
3aa102be 113 int frame_count[5];
947ac25a 114 int last_non_b_pict_type;
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115}RateControlContext;
116
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117/**
118 * Scantable.
119 */
2ad1516a 120typedef struct ScanTable{
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121 const uint8_t *scantable;
122 uint8_t permutated[64];
123 uint8_t raster_end[64];
05c4072b 124#ifdef ARCH_POWERPC
277f4827 125 /** Used by dct_quantise_alitvec to find last-non-zero */
0c1a9eda 126 uint8_t __align8 inverse[64];
05c4072b 127#endif
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128} ScanTable;
129
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130/**
131 * Picture.
132 */
1e491e29 133typedef struct Picture{
492cd3a9 134 FF_COMMON_FRAME
1e491e29 135
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136 /**
137 * halfpel luma planes.
138 */
139 uint8_t *interpolated[3];
b40cd4e0 140 int16_t (*motion_val_base[2])[2];
7bc9090a 141 uint32_t *mb_type_base;
bb198e19 142#define MB_TYPE_INTRA MB_TYPE_INTRA4x4 //default mb_type if theres just one type
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143#define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4)
144#define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16)
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145#define IS_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
146#define IS_INTRA(a) ((a)&7)
0da71265 147#define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8))
7bc9090a 148#define IS_SKIP(a) ((a)&MB_TYPE_SKIP)
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149#define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM)
150#define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED)
151#define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2)
7bc9090a 152#define IS_GMC(a) ((a)&MB_TYPE_GMC)
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153#define IS_16X16(a) ((a)&MB_TYPE_16x16)
154#define IS_16X8(a) ((a)&MB_TYPE_16x8)
155#define IS_8X16(a) ((a)&MB_TYPE_8x16)
156#define IS_8X8(a) ((a)&MB_TYPE_8x8)
157#define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused
158#define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused
159#define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused
160#define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused
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161#define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED)
162#define IS_QUANT(a) ((a)&MB_TYPE_QUANT)
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163#define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))
164#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 165#define HAS_CBP(a) ((a)&MB_TYPE_CBP)
0da71265 166
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167 int field_poc[2]; ///< h264 top/bottom POC
168 int poc; ///< h264 frame POC
169 int frame_num; ///< h264 frame_num
170 int pic_id; ///< h264 pic_num or long_term_pic_idx
171 int long_ref; ///< 1->long term reference 0->short term reference
172
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173 int mb_var_sum; ///< sum of MB variance for current frame
174 int mc_mb_var_sum; ///< motion compensated MB variance for current frame
175 uint16_t *mb_var; ///< Table for MB variances
176 uint16_t *mc_mb_var; ///< Table for motion compensated MB variances
177 uint8_t *mb_mean; ///< Table for MB luminance
8fc7c993 178 int32_t *mb_cmp_score; ///< Table for MB cmp scores, for mb decission FIXME remove
0d1e9246 179 int b_frame_score; /* */
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180} Picture;
181
d7425f59 182typedef struct ParseContext{
0c1a9eda 183 uint8_t *buffer;
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184 int index;
185 int last_index;
186 int buffer_size;
bb463d81 187 uint32_t state; ///< contains the last few bytes in MSB order
d7425f59 188 int frame_start_found;
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189 int overread; ///< the number of bytes which where irreversibly read from the next frame
190 int overread_index; ///< the index into ParseContext.buffer of the overreaded bytes
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191} ParseContext;
192
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193struct MpegEncContext;
194
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195/**
196 * Motion estimation context.
197 */
1457ab52 198typedef struct MotionEstContext{
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199 int skip; ///< set if ME is skiped for the current MB
200 int co_located_mv[4][2]; ///< mv from last p frame for direct mode ME
1457ab52 201 int direct_basis_mv[4][2];
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202 uint8_t *scratchpad; ///< data area for the me algo, so that the ME doesnt need to malloc/free
203 uint32_t *map; ///< map to avoid duplicate evaluations
204 uint32_t *score_map; ///< map to store the scores
1457ab52 205 int map_generation;
826f429a 206 int pre_penalty_factor;
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207 int penalty_factor;
208 int sub_penalty_factor;
67725183 209 int mb_penalty_factor;
277f4827 210 int pre_pass; ///< = 1 for the pre pass
826f429a 211 int dia_size;
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212 int xmin;
213 int xmax;
214 int ymin;
215 int ymax;
30952237 216 uint8_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV
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217 int (*sub_motion_search)(struct MpegEncContext * s,
218 int *mx_ptr, int *my_ptr, int dmin,
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219 int pred_x, int pred_y, uint8_t *src_data[3],
220 uint8_t *ref_data[6], int stride, int uvstride,
221 int size, int h, uint8_t * const mv_penalty);
222 int (*motion_search[7])(struct MpegEncContext * s,
1457ab52 223 int *mx_ptr, int *my_ptr,
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224 int P[10][2], int pred_x, int pred_y, uint8_t *src_data[3],
225 uint8_t *ref_data[6], int stride, int uvstride, int16_t (*last_mv)[2],
30952237 226 int ref_mv_scale, uint8_t * const mv_penalty);
bb198e19 227 int (*pre_motion_search)(struct MpegEncContext * s,
826f429a 228 int *mx_ptr, int *my_ptr,
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229 int P[10][2], int pred_x, int pred_y, uint8_t *src_data[3],
230 uint8_t *ref_data[6], int stride, int uvstride, int16_t (*last_mv)[2],
30952237 231 int ref_mv_scale, uint8_t * const mv_penalty);
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232 int (*get_mb_score)(struct MpegEncContext * s, int mx, int my, int pred_x, int pred_y, uint8_t *src_data[3],
233 uint8_t *ref_data[6], int stride, int uvstride,
30952237 234 uint8_t * const mv_penalty);
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235}MotionEstContext;
236
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237/**
238 * MpegEncContext.
239 */
de6d9b64 240typedef struct MpegEncContext {
58f26ba9 241 struct AVCodecContext *avctx;
de6d9b64 242 /* the following parameters must be initialized before encoding */
277f4827 243 int width, height;///< picture size. must be a multiple of 16
de6d9b64 244 int gop_size;
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245 int intra_only; ///< if true, only intra pictures are generated
246 int bit_rate; ///< wanted bit rate
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247 enum OutputFormat out_format; ///< output format
248 int h263_pred; ///< use mpeg4/h263 ac/dc predictions
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249
250/* the following codec id fields are deprecated in favor of codec_id */
277f4827 251 int h263_plus; ///< h263 plus headers
277f4827 252 int h263_msmpeg4; ///< generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)
d4f5d74a 253 int h263_flv; ///< use flv h263 header
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254
255 int codec_id; /* see CODEC_ID_xxx */
277f4827 256 int fixed_qscale; ///< fixed qscale if non zero
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257 int encoding; ///< true if we are encoding (vs decoding)
258 int flags; ///< AVCodecContext.flags (HQ, MV4, ...)
303e50e6 259 int flags2; ///< AVCodecContext.flags2
277f4827 260 int max_b_frames; ///< max number of b-frames for encoding
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261 int luma_elim_threshold;
262 int chroma_elim_threshold;
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263 int strict_std_compliance; ///< strictly follow the std (MPEG4, ...)
264 int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
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265 /* the following fields are managed internally by the encoder */
266
277f4827 267 /** bit output */
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268 PutBitContext pb;
269
270 /* sequence parameters */
271 int context_initialized;
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272 int input_picture_number; ///< used to set pic->display_picture_number, shouldnt be used for/by anything else
273 int coded_picture_number; ///< used to set pic->coded_picture_number, shouldnt be used for/by anything else
274 int picture_number; //FIXME remove, unclear definition
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275 int picture_in_gop_number; ///< 0-> first pic in gop, ...
276 int b_frames_since_non_b; ///< used for encoding, relative to not yet reordered input
e51f4948 277 int64_t user_specified_pts;///< last non zero pts from AVFrame which was passed into avcodec_encode_video()
277f4827 278 int mb_width, mb_height; ///< number of MBs horizontally & vertically
7bc9090a 279 int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressng of left & top MBs withoutt sig11
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280 int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressng
281 int b4_stride; ///< 4*mb_width+1 used for some 4x4 block arrays to allow simple addressng
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282 int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replicateion)
283 int mb_num; ///< number of MBs of a picture
284 int linesize; ///< line size, in bytes, may be different from width
285 int uvlinesize; ///< line size, for chroma in bytes, may be different from width
b465449e 286 Picture *picture; ///< main picture buffer
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287 Picture **input_picture; ///< next pictures on display order for encoding
288 Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding
b536d0aa 289
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290 int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
291 int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
292 struct MpegEncContext *thread_context[MAX_THREADS];
293
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294 /**
295 * copy of the previous picture structure.
296 * note, linesize & data, might not match the previous picture (for field pictures)
297 */
298 Picture last_picture;
299
300 /**
301 * copy of the next picture structure.
302 * note, linesize & data, might not match the next picture (for field pictures)
303 */
304 Picture next_picture;
305
306 /**
307 * copy of the source picture structure for encoding.
308 * note, linesize & data, might not match the source picture (for field pictures)
309 */
310 Picture new_picture;
311
312 /**
313 * copy of the current picture structure.
314 * note, linesize & data, might not match the current picture (for field pictures)
315 */
277f4827 316 Picture current_picture; ///< buffer to store the decompressed current picture
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317
318 Picture *last_picture_ptr; ///< pointer to the previous picture.
319 Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred)
b536d0aa 320 Picture *current_picture_ptr; ///< pointer to the current picture
0c9bbaec 321 uint8_t *visualization_buffer[3]; //< temporary buffer vor MV visualization
277f4827 322 int last_dc[3]; ///< last DC values for MPEG1
137c8468 323 int16_t *dc_val_base;
277f4827 324 int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous
0da71265 325 int16_t dc_cache[4*5];
de6d9b64 326 int y_dc_scale, c_dc_scale;
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327 uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table
328 uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table
332f9ac4 329 const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (h263)
137c8468 330 uint8_t *coded_block_base;
277f4827 331 uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
137c8468 332 int16_t (*ac_val_base)[16];
277f4827 333 int16_t (*ac_val[3])[16]; ///< used for for mpeg4 AC prediction, all 3 arrays must be continuous
de6d9b64 334 int ac_pred;
277f4827 335 uint8_t *prev_pict_types; ///< previous picture types in bitstream order, used for mb skip
f943e138 336#define PREV_PICT_TYPES_BUFFER_SIZE 256
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337 int mb_skiped; ///< MUST BE SET only during DECODING
338 uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
9dbcbd92 339 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
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340 uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
341 uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
342 uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
f7b47594 343 uint8_t *allocated_edge_emu_buffer;
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344 uint8_t *edge_emu_buffer; ///< points into the middle of allocated_edge_emu_buffer
345 uint8_t *rd_scratchpad; ///< scartchpad for rate distortion mb decission
346 uint8_t *obmc_scratchpad;
347 uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers
de6d9b64 348
277f4827 349 int qscale; ///< QP
332f9ac4 350 int chroma_qscale; ///< chroma QP
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351 int lambda; ///< lagrange multipler used in rate distortion
352 int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
353 int *lambda_table;
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354 int adaptive_quant; ///< use adaptive quantization
355 int dquant; ///< qscale difference to prev qscale
356 int pict_type; ///< I_TYPE, P_TYPE, B_TYPE, ...
14e2a940 357 int last_pict_type; //FIXME removes
277f4827 358 int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol
14e2a940 359 int dropable;
de6d9b64 360 int frame_rate_index;
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361 int frame_rate_ext_n; ///< MPEG-2 specific framerate modificators (numerator)
362 int frame_rate_ext_d; ///< MPEG-2 specific framerate modificators (denominator)
363
de6d9b64 364 /* motion compensation */
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365 int unrestricted_mv; ///< mv can point outside of the coded picture
366 int h263_long_vectors; ///< use horrible h263v1 long vector mode
0da71265 367 int decode; ///< if 0 then decoding will be skiped (for encoding b frames for example)
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368
369 DSPContext dsp; ///< pointers for accelerated dsp fucntions
370 int f_code; ///< forward MV resolution
371 int b_code; ///< backward MV resolution for B Frames (mpeg4)
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372 int16_t (*p_mv_table_base)[2];
373 int16_t (*b_forw_mv_table_base)[2];
374 int16_t (*b_back_mv_table_base)[2];
375 int16_t (*b_bidir_forw_mv_table_base)[2];
376 int16_t (*b_bidir_back_mv_table_base)[2];
377 int16_t (*b_direct_mv_table_base)[2];
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378 int16_t (*p_field_mv_table_base[2][2])[2];
379 int16_t (*b_field_mv_table_base[2][2][2])[2];
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380 int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) p-frame encoding
381 int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode b-frame encoding
382 int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode b-frame encoding
383 int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
384 int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding
385 int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode b-frame encoding
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386 int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced p-frame encoding
387 int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced b-frame encoding
388 uint8_t (*p_field_select_table[2]);
389 uint8_t (*b_field_select_table[2][2]);
277f4827 390 int me_method; ///< ME algorithm
1fb4890b 391 int scene_change_score;
de6d9b64 392 int mv_dir;
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393#define MV_DIR_BACKWARD 1
394#define MV_DIR_FORWARD 2
277f4827 395#define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
de6d9b64 396 int mv_type;
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397#define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
398#define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV)
399#define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block
400#define MV_TYPE_FIELD 3 ///< 2 vectors, one per field
401#define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors
402 /**motion vectors for a macroblock
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403 first coordinate : 0 = forward 1 = backward
404 second " : depend on type
405 third " : 0 = x, 1 = y
406 */
407 int mv[2][4][2];
408 int field_select[2][2];
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409 int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4
410 uint8_t *fcode_tab; ///< smallest fcode needed for each MV
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411
412 MotionEstContext me;
de6d9b64 413
277f4827 414 int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
91029be7 415 for b-frames rounding mode is allways 0 */
de6d9b64 416
277f4827 417 int hurry_up; /**< when set to 1 during decoding, b frames will be skiped
2417652e 418 when set to 2 idct/dequant will be skipped too */
c5d309f2 419
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420 /* macroblock layer */
421 int mb_x, mb_y;
9b8709d1 422 int mb_skip_run;
de6d9b64 423 int mb_intra;
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424 uint16_t *mb_type; ///< Table for candidate MB types for encoding
425#define CANDIDATE_MB_TYPE_INTRA 0x01
426#define CANDIDATE_MB_TYPE_INTER 0x02
427#define CANDIDATE_MB_TYPE_INTER4V 0x04
428#define CANDIDATE_MB_TYPE_SKIPED 0x08
7bc9090a 429//#define MB_TYPE_GMC 0x10
7f2fe444 430
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431#define CANDIDATE_MB_TYPE_DIRECT 0x10
432#define CANDIDATE_MB_TYPE_FORWARD 0x20
433#define CANDIDATE_MB_TYPE_BACKWARD 0x40
434#define CANDIDATE_MB_TYPE_BIDIR 0x80
435
436#define CANDIDATE_MB_TYPE_INTER_I 0x100
437#define CANDIDATE_MB_TYPE_FORWARD_I 0x200
438#define CANDIDATE_MB_TYPE_BACKWARD_I 0x400
439#define CANDIDATE_MB_TYPE_BIDIR_I 0x800
4278e7a6 440
277f4827 441 int block_index[6]; ///< index to current MB in block based arrays with edges
4278e7a6 442 int block_wrap[6];
7d1c3fc1 443 uint8_t *dest[3];
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444
445 int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride
4278e7a6 446
277f4827 447 /** matrix transmitted in the bitstream */
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448 uint16_t intra_matrix[64];
449 uint16_t chroma_intra_matrix[64];
450 uint16_t inter_matrix[64];
451 uint16_t chroma_inter_matrix[64];
1984f635 452#define QUANT_BIAS_SHIFT 8
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453 int intra_quant_bias; ///< bias for the quantizer
454 int inter_quant_bias; ///< bias for the quantizer
455 int min_qcoeff; ///< minimum encodable coefficient
456 int max_qcoeff; ///< maximum encodable coefficient
457 int ac_esc_length; ///< num of bits needed to encode the longest esc
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458 uint8_t *intra_ac_vlc_length;
459 uint8_t *intra_ac_vlc_last_length;
460 uint8_t *inter_ac_vlc_length;
461 uint8_t *inter_ac_vlc_last_length;
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462 uint8_t *luma_dc_vlc_length;
463 uint8_t *chroma_dc_vlc_length;
c442d75c 464#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
477ab036 465
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466 int coded_score[6];
467
277f4827 468 /** precomputed matrix (combine qscale and DCT renorm) */
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469 int (*q_intra_matrix)[64];
470 int (*q_inter_matrix)[64];
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471 /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
472 uint16_t (*q_intra_matrix16)[2][64];
473 uint16_t (*q_inter_matrix16)[2][64];
5e5c247a 474 int block_last_index[12]; ///< last non zero coefficient in block
2ad1516a 475 /* scantables */
05c4072b 476 ScanTable __align8 intra_scantable;
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477 ScanTable intra_h_scantable;
478 ScanTable intra_v_scantable;
277f4827 479 ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage
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480
481 /* noise reduction */
482 int (*dct_error_sum)[64];
483 int dct_count[2];
484 uint16_t (*dct_offset)[64];
de6d9b64 485
277f4827 486 void *opaque; ///< private data for the user
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487
488 /* bit rate control */
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489 int64_t wanted_bits;
490 int64_t total_bits;
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491 int frame_bits; ///< bits used for the current frame
492 RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
9cdd6a24 493
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494 /* statistics, used for 2-pass encoding */
495 int mv_bits;
496 int header_bits;
497 int i_tex_bits;
498 int p_tex_bits;
499 int i_count;
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500 int f_count;
501 int b_count;
098eefe1 502 int skip_count;
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503 int misc_bits; ///< cbp, mb_type
504 int last_bits; ///< temp var used for calculating the above vars
7f2fe444 505
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506 /* temp variables for picture complexity calculation */
507 int mc_mb_var_sum_temp;
508 int mb_var_sum_temp;
509
7f2fe444 510 /* error concealment / resync */
7bc9090a 511 int error_count;
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512 uint8_t *error_status_table; ///< table of the error status of each MB
513#define VP_START 1 ///< current MB is the first after a resync marker
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514#define AC_ERROR 2
515#define DC_ERROR 4
516#define MV_ERROR 8
517#define AC_END 16
518#define DC_END 32
519#define MV_END 64
520//FIXME some prefix?
521
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522 int resync_mb_x; ///< x position of last resync marker
523 int resync_mb_y; ///< y position of last resync marker
524 GetBitContext last_resync_gb; ///< used to search for the next resync marker
525 int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only)
526 int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed b frames
7f2fe444 527 int error_resilience;
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528
529 ParseContext parse_context;
098eefe1 530
102d3908 531 /* H.263 specific */
644d98a4 532 int gob_index;
dba019da 533 int obmc; ///< overlapped block motion compensation
d140623f 534
544286b3 535 /* H.263+ specific */
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536 int umvplus; ///< == H263+ && unrestricted_mv
537 int h263_aic; ///< Advanded INTRA Coding (AIC)
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538 int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top
539 int h263_slice_structured;
dba019da 540 int alt_inter_vlc; ///< alternative inter vlc
68b94c35 541 int modified_quant;
ba58dabc 542 int loop_filter;
b056e73c 543 int custom_pcf;
544286b3 544
de6d9b64 545 /* mpeg4 specific */
6f91bcd1 546 int time_increment_resolution;
277f4827 547 int time_increment_bits; ///< number of bits to represent the fractional part of time
9dbcbd92 548 int last_time_base;
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549 int time_base; ///< time in seconds of last I,P,S Frame
550 int64_t time; ///< time of current frame
0c1a9eda 551 int64_t last_non_b_time;
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552 uint16_t pp_time; ///< time distance between the last 2 p,s,i frames
553 uint16_t pb_time; ///< time distance between the last b and p,s,i frame
0c1a9eda 554 uint16_t pp_field_time;
277f4827 555 uint16_t pb_field_time; ///< like above, just for interlaced
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556 int shape;
557 int vol_sprite_usage;
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558 int sprite_width;
559 int sprite_height;
560 int sprite_left;
561 int sprite_top;
562 int sprite_brightness_change;
73c8e514 563 int num_sprite_warping_points;
44eb4951 564 int real_sprite_warping_points;
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565 int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
566 int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
567 int sprite_shift[2]; ///< sprite shift [isChroma]
73c8e514 568 int mcsel;
1a565432 569 int quant_precision;
277f4827 570 int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
cc9ba006 571 int scalability;
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572 int hierachy_type;
573 int enhancement_type;
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574 int new_pred;
575 int reduced_res_vop;
0da71265 576 int aspect_ratio_info; //FIXME remove
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577 int sprite_warping_accuracy;
578 int low_latency_sprite;
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579 int data_partitioning; ///< data partitioning flag from header
580 int partitioned_frame; ///< is current frame partitioned
581 int rvlc; ///< reversible vlc
582 int resync_marker; ///< could this stream contain resync markers
583 int low_delay; ///< no reordering needed / has no b-frames
1ff662cc 584 int vo_type;
277f4827 585 int vol_control_parameters; ///< does the stream contain the low_delay flag, used to workaround buggy encoders
34790165 586 int intra_dc_threshold; ///< QP above whch the ac VLC should be used for intra dc
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587 PutBitContext tex_pb; ///< used for data partitioned VOPs
588 PutBitContext pb2; ///< used for data partitioned VOPs
d930ef19 589 int mpeg_quant;
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590 int t_frame; ///< time distance of first I -> B, used for interlaced b frames
591 int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4
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592
593 /* divx specific, used to workaround (many) bugs in divx5 */
594 int divx_version;
595 int divx_build;
d5a21172 596 int divx_packed;
eec1c6b9 597#define BITSTREAM_BUFFER_SIZE 1024*256
0c1a9eda 598 uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
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599 int bitstream_buffer_size;
600
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601 int xvid_build;
602
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603 /* lavc specific stuff, used to workaround bugs in libavcodec */
604 int ffmpeg_version;
605 int lavc_build;
606
de6d9b64 607 /* RV10 specific */
277f4827 608 int rv10_version; ///< RV10 version: 0 or 3
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609 int rv10_first_dc_coded[3];
610
611 /* MJPEG specific */
612 struct MJpegContext *mjpeg_ctx;
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613 int mjpeg_vsample[3]; ///< vertical sampling factors, default = {2, 1, 1}
614 int mjpeg_hsample[3]; ///< horizontal sampling factors, default = {2, 1, 1}
615 int mjpeg_write_tables; ///< do we want to have quantisation- and huffmantables in the jpeg file ?
616 int mjpeg_data_only_frames; ///< frames only with SOI, SOS and EOI markers
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617
618 /* MSMPEG4 specific */
619 int mv_table_index;
620 int rl_table_index;
621 int rl_chroma_table_index;
622 int dc_table_index;
623 int use_skip_mb_code;
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624 int slice_height; ///< in macroblocks
625 int first_slice_line; ///< used in mpeg4 too to handle resync markers
ae40484c 626 int flipflop_rounding;
277f4827 627 int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
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628 int per_mb_rl_table;
629 int esc3_level_length;
630 int esc3_run_length;
277f4827 631 /** [mb_intra][isChroma][level][run][last] */
6b460aa3 632 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
de0f2f4c 633 int inter_intra_pred;
1457ab52 634 int mspel;
0151a6f5 635
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636 /* decompression specific */
637 GetBitContext gb;
638
1e491e29 639 /* Mpeg1 specific */
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640 int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
641 int last_mv_dir; ///< last mv_dir, used for b frame encoding
0da71265 642 int broken_link; ///< no_output_of_prior_pics_flag
d60a8f85 643 uint8_t *vbv_delay_ptr; ///< pointer to vbv_delay in the bitstream
1e491e29 644
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645 /* MPEG2 specific - I wish I had not to support this mess. */
646 int progressive_sequence;
647 int mpeg_f_code[2][2];
648 int picture_structure;
649/* picture type */
650#define PICT_TOP_FIELD 1
651#define PICT_BOTTOM_FIELD 2
652#define PICT_FRAME 3
653
654 int intra_dc_precision;
655 int frame_pred_frame_dct;
656 int top_field_first;
657 int concealment_motion_vectors;
658 int q_scale_type;
659 int intra_vlc_format;
660 int alternate_scan;
661 int repeat_first_field;
662 int chroma_420_type;
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663 int chroma_format;
664#define CHROMA_420 1
665#define CHROMA_422 2
666#define CHROMA_444 3
667
de6d9b64 668 int progressive_frame;
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669 int full_pel[2];
670 int interlaced_dct;
de6d9b64 671 int first_slice;
c3bf0288 672 int first_field; ///< is 1 for the first field of a field picture 0 otherwise
ba58dabc 673
644d98a4 674 /* RTP specific */
e4eadb4b 675 int rtp_mode;
ba58dabc 676
0c1a9eda 677 uint8_t *ptr_lastgob;
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678 int swap_uv;//vcr2 codec is mpeg2 varint with UV swaped
679 short * pblocks[12];
644d98a4 680
277f4827 681 DCTELEM (*block)[64]; ///< points to one of the following blocks
45686da2 682 DCTELEM (*blocks)[6][64]; // for HQ mode we need to keep the best block
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683 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
684#define SLICE_OK 0
685#define SLICE_ERROR -1
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686#define SLICE_END -2 ///<end marker found
687#define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded
4d2858de 688
d50635cd 689 void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s,
67309e49 690 DCTELEM *block/*align 16*/, int n, int qscale);
d50635cd 691 void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s,
67309e49 692 DCTELEM *block/*align 16*/, int n, int qscale);
d50635cd 693 void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s,
67309e49 694 DCTELEM *block/*align 16*/, int n, int qscale);
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695 void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s,
696 DCTELEM *block/*align 16*/, int n, int qscale);
697 void (*dct_unquantize_h263_intra)(struct MpegEncContext *s,
698 DCTELEM *block/*align 16*/, int n, int qscale);
699 void (*dct_unquantize_h263_inter)(struct MpegEncContext *s,
700 DCTELEM *block/*align 16*/, int n, int qscale);
701 void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
702 DCTELEM *block/*align 16*/, int n, int qscale);
703 void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
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704 DCTELEM *block/*align 16*/, int n, int qscale);
705 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
3a87ac94 706 int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
783df5f3 707 void (*denoise_dct)(struct MpegEncContext *s, DCTELEM *block);
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708} MpegEncContext;
709
4d2858de 710
defdfc9a 711int DCT_common_init(MpegEncContext *s);
3edcacde 712void MPV_decode_defaults(MpegEncContext *s);
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713int MPV_common_init(MpegEncContext *s);
714void MPV_common_end(MpegEncContext *s);
715void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
d6db1c9c 716int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
de6d9b64 717void MPV_frame_end(MpegEncContext *s);
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718int MPV_encode_init(AVCodecContext *avctx);
719int MPV_encode_end(AVCodecContext *avctx);
720int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
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721#ifdef HAVE_MMX
722void MPV_common_init_mmx(MpegEncContext *s);
723#endif
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724#ifdef ARCH_ALPHA
725void MPV_common_init_axp(MpegEncContext *s);
726#endif
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727#ifdef HAVE_MLIB
728void MPV_common_init_mlib(MpegEncContext *s);
729#endif
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730#ifdef HAVE_MMI
731void MPV_common_init_mmi(MpegEncContext *s);
732#endif
83f238cb 733#ifdef ARCH_ARMV4L
d43b10ec 734void MPV_common_init_armv4l(MpegEncContext *s);
83f238cb 735#endif
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736#ifdef ARCH_POWERPC
737void MPV_common_init_ppc(MpegEncContext *s);
738#endif
0c1a9eda 739extern void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
0c1a9eda 740void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length);
7f2fe444 741void ff_clean_intra_table_entries(MpegEncContext *s);
3d2e8cce 742void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
640950c7 743void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
c009df3f 744void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize, int block_w, int block_h,
1457ab52 745 int src_x, int src_y, int w, int h);
bb463d81 746#define END_NOT_FOUND -100
b7a22d84 747int ff_combine_frame( MpegEncContext *s, int next, uint8_t **buf, int *buf_size);
7a06ff14 748void ff_mpeg_flush(AVCodecContext *avctx);
0c9bbaec 749void ff_print_debug_info(MpegEncContext *s, AVFrame *pict);
d6eb3c50 750void ff_write_quant_matrix(PutBitContext *pb, int16_t *matrix);
5f194811 751int ff_find_unused_picture(MpegEncContext *s, int shared);
821cb11f 752void ff_denoise_dct(MpegEncContext *s, DCTELEM *block);
c62c07d3 753void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
59b571c1 754
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755void ff_er_frame_start(MpegEncContext *s);
756void ff_er_frame_end(MpegEncContext *s);
757void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status);
758
759
a33c7159 760extern enum PixelFormat ff_yuv420p_list[2];
de6d9b64 761
7d1c3fc1 762void ff_init_block_index(MpegEncContext *s);
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763
764static inline void ff_update_block_index(MpegEncContext *s){
765 s->block_index[0]+=2;
766 s->block_index[1]+=2;
767 s->block_index[2]+=2;
768 s->block_index[3]+=2;
769 s->block_index[4]++;
770 s->block_index[5]++;
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771 s->dest[0]+= 16;
772 s->dest[1]+= 8;
773 s->dest[2]+= 8;
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774}
775
4d2a4834 776static inline int get_bits_diff(MpegEncContext *s){
fe455f33 777 const int bits= put_bits_count(&s->pb);
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778 const int last= s->last_bits;
779
780 s->last_bits = bits;
781
782 return bits - last;
783}
4d2858de 784
de6d9b64 785/* motion_est.c */
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786void ff_estimate_p_frame_motion(MpegEncContext * s,
787 int mb_x, int mb_y);
788void ff_estimate_b_frame_motion(MpegEncContext * s,
789 int mb_x, int mb_y);
790int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
791void ff_fix_long_p_mvs(MpegEncContext * s);
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792void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
793 int16_t (*mv_table)[2], int f_code, int type, int truncate);
1457ab52 794void ff_init_me(MpegEncContext *s);
f5fb6b34 795int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
de6d9b64 796
4d2858de 797
de6d9b64 798/* mpeg12.c */
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799extern const int16_t ff_mpeg1_default_intra_matrix[64];
800extern const int16_t ff_mpeg1_default_non_intra_matrix[64];
801extern uint8_t ff_mpeg1_dc_scale_table[128];
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802
803void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
804void mpeg1_encode_mb(MpegEncContext *s,
805 DCTELEM block[6][64],
806 int motion_x, int motion_y);
0151a6f5 807void ff_mpeg1_encode_init(MpegEncContext *s);
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808void ff_mpeg1_encode_slice_header(MpegEncContext *s);
809void ff_mpeg1_clean_buffers(MpegEncContext *s);
de6d9b64 810
4d2858de 811
277f4827 812/** RLTable. */
de6d9b64 813typedef struct RLTable {
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814 int n; ///< number of entries of table_vlc minus 1
815 int last; ///< number of values for last = 0
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816 const uint16_t (*table_vlc)[2];
817 const int8_t *table_run;
818 const int8_t *table_level;
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819 uint8_t *index_run[2]; ///< encoding only
820 int8_t *max_level[2]; ///< encoding & decoding
821 int8_t *max_run[2]; ///< encoding & decoding
822 VLC vlc; ///< decoding only deprected FIXME remove
823 RL_VLC_ELEM *rl_vlc[32]; ///< decoding only
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824} RLTable;
825
826void init_rl(RLTable *rl);
827void init_vlc_rl(RLTable *rl);
828
3232bc88 829static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
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830{
831 int index;
832 index = rl->index_run[last][run];
833 if (index >= rl->n)
834 return rl->n;
835 if (level > rl->max_level[last][run])
836 return rl->n;
837 return index + level - 1;
838}
839
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840extern uint8_t ff_mpeg4_y_dc_scale_table[32];
841extern uint8_t ff_mpeg4_c_dc_scale_table[32];
68b94c35 842extern uint8_t ff_aic_dc_scale_table[32];
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843extern const int16_t ff_mpeg4_default_intra_matrix[64];
844extern const int16_t ff_mpeg4_default_non_intra_matrix[64];
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845extern const uint8_t ff_h263_chroma_qscale_table[32];
846extern const uint8_t ff_h263_loop_filter_strength[32];
68b94c35 847
554daa24 848
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849int ff_h263_decode_init(AVCodecContext *avctx);
850int ff_h263_decode_frame(AVCodecContext *avctx,
851 void *data, int *data_size,
0c1a9eda 852 uint8_t *buf, int buf_size);
1457ab52 853int ff_h263_decode_end(AVCodecContext *avctx);
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854void h263_encode_mb(MpegEncContext *s,
855 DCTELEM block[6][64],
856 int motion_x, int motion_y);
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857void mpeg4_encode_mb(MpegEncContext *s,
858 DCTELEM block[6][64],
859 int motion_x, int motion_y);
de6d9b64 860void h263_encode_picture_header(MpegEncContext *s, int picture_number);
44a2950f 861void ff_flv_encode_picture_header(MpegEncContext *s, int picture_number);
ba58dabc 862void h263_encode_gob_header(MpegEncContext * s, int mb_line);
137c8468 863int16_t *h263_pred_motion(MpegEncContext * s, int block, int dir,
de6d9b64 864 int *px, int *py);
0e15384d 865void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
de6d9b64 866 int dir);
91029be7 867void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
de6d9b64 868void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
45870f57 869void h263_encode_init(MpegEncContext *s);
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FB
870void h263_decode_init_vlc(MpegEncContext *s);
871int h263_decode_picture_header(MpegEncContext *s);
4d2858de 872int ff_h263_decode_gob_header(MpegEncContext *s);
b704e742 873int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
7d1c3fc1 874void ff_h263_update_motion_val(MpegEncContext * s);
cdb4e730 875void ff_h263_loop_filter(MpegEncContext * s);
554daa24 876void ff_set_qscale(MpegEncContext * s, int qscale);
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MN
877int ff_h263_decode_mba(MpegEncContext *s);
878void ff_h263_encode_mba(MpegEncContext *s);
b704e742 879
de6d9b64 880int intel_h263_decode_picture_header(MpegEncContext *s);
d4f5d74a 881int flv_h263_decode_picture_header(MpegEncContext *s);
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882int ff_h263_decode_mb(MpegEncContext *s,
883 DCTELEM block[6][64]);
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884int ff_mpeg4_decode_mb(MpegEncContext *s,
885 DCTELEM block[6][64]);
de6d9b64 886int h263_get_picture_format(int width, int height);
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887void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
888void ff_mpeg4_clean_buffers(MpegEncContext *s);
889void ff_mpeg4_stuffing(PutBitContext * pbc);
890void ff_mpeg4_init_partitions(MpegEncContext *s);
891void ff_mpeg4_merge_partitions(MpegEncContext *s);
c5d309f2 892void ff_clean_mpeg4_qscales(MpegEncContext *s);
9e4c6948 893void ff_clean_h263_qscales(MpegEncContext *s);
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894int ff_mpeg4_decode_partitions(MpegEncContext *s);
895int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
896int ff_h263_resync(MpegEncContext *s);
897int ff_h263_get_gob_height(MpegEncContext *s);
7bc9090a 898int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
67725183 899inline int ff_h263_round_chroma(int x);
4d2858de 900
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901
902/* rv10.c */
903void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
904int rv_decode_dc(MpegEncContext *s, int n);
905
4d2858de 906
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907/* msmpeg4.c */
908void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
ae40484c 909void msmpeg4_encode_ext_header(MpegEncContext * s);
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910void msmpeg4_encode_mb(MpegEncContext * s,
911 DCTELEM block[6][64],
912 int motion_x, int motion_y);
de6d9b64 913int msmpeg4_decode_picture_header(MpegEncContext * s);
ae40484c 914int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
0151a6f5
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915int ff_msmpeg4_decode_init(MpegEncContext *s);
916void ff_msmpeg4_encode_init(MpegEncContext *s);
1457ab52 917int ff_wmv2_decode_picture_header(MpegEncContext * s);
b1609412 918int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s);
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919void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
920void ff_mspel_motion(MpegEncContext *s,
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921 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
922 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
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923 int motion_x, int motion_y, int h);
924int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
925void ff_wmv2_encode_mb(MpegEncContext * s,
926 DCTELEM block[6][64],
927 int motion_x, int motion_y);
de6d9b64 928
c009df3f 929/* mjpeg.c */
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930int mjpeg_init(MpegEncContext *s);
931void mjpeg_close(MpegEncContext *s);
932void mjpeg_encode_mb(MpegEncContext *s,
933 DCTELEM block[6][64]);
934void mjpeg_picture_header(MpegEncContext *s);
935void mjpeg_picture_trailer(MpegEncContext *s);
9c3d33d6 936void ff_mjpeg_stuffing(PutBitContext * pbc);
8b4c7dbc 937
4d2858de 938
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939/* rate control */
940int ff_rate_control_init(MpegEncContext *s);
c5d309f2 941float ff_rate_estimate_qscale(MpegEncContext *s);
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942void ff_write_pass1_stats(MpegEncContext *s);
943void ff_rate_control_uninit(MpegEncContext *s);
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944double ff_eval(char *s, double *const_value, const char **const_name,
945 double (**func1)(void *, double), const char **func1_name,
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946 double (**func2)(void *, double, double), char **func2_name,
947 void *opaque);
11dffbe1 948int ff_vbv_update(MpegEncContext *s, int frame_size);
3aa102be 949
8b4c7dbc 950
cd4af68a 951#endif /* AVCODEC_MPEGVIDEO_H */