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[libav.git] / libavcodec / mpegvideo.h
1 /*
2 * Generic DCT based hybrid video encoder
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 #ifndef AVCODEC_MPEGVIDEO_H
21 #define AVCODEC_MPEGVIDEO_H
22
23 #define FRAME_SKIPED 100 // return value for header parsers if frame is not coded
24
25 enum OutputFormat {
26 FMT_MPEG1,
27 FMT_H263,
28 FMT_MJPEG,
29 };
30
31 #define EDGE_WIDTH 16
32
33 #define MPEG_BUF_SIZE (16 * 1024)
34
35 #define QMAT_SHIFT_MMX 16
36 #define QMAT_SHIFT 22
37
38 #define MAX_FCODE 7
39 #define MAX_MV 2048
40
41 #define MAX_PICTURE_COUNT 15
42
43 #define ME_MAP_SIZE 64
44 #define ME_MAP_SHIFT 3
45 #define ME_MAP_MV_BITS 11
46
47 /* run length table */
48 #define MAX_RUN 64
49 #define MAX_LEVEL 64
50
51 #define I_TYPE FF_I_TYPE // Intra
52 #define P_TYPE FF_P_TYPE // Predicted
53 #define B_TYPE FF_B_TYPE // Bi-dir predicted
54 #define S_TYPE FF_S_TYPE // S(GMC)-VOP MPEG4
55
56 typedef struct Predictor{
57 double coeff;
58 double count;
59 double decay;
60 } Predictor;
61
62 typedef struct RateControlEntry{
63 int pict_type;
64 float qscale;
65 int mv_bits;
66 int i_tex_bits;
67 int p_tex_bits;
68 int misc_bits;
69 UINT64 expected_bits;
70 int new_pict_type;
71 float new_qscale;
72 int mc_mb_var_sum;
73 int mb_var_sum;
74 int i_count;
75 int f_code;
76 int b_code;
77 }RateControlEntry;
78
79 typedef struct RateControlContext{
80 FILE *stats_file;
81 int num_entries; /* number of RateControlEntries */
82 RateControlEntry *entry;
83 int buffer_index; /* amount of bits in the video/audio buffer */
84 Predictor pred[5];
85 double short_term_qsum; /* sum of recent qscales */
86 double short_term_qcount; /* count of recent qscales */
87 double pass1_rc_eq_output_sum;/* sum of the output of the rc equation, this is used for normalization */
88 double pass1_wanted_bits; /* bits which should have been outputed by the pass1 code (including complexity init) */
89 double last_qscale;
90 double last_qscale_for[5]; /* last qscale for a specific pict type, used for max_diff & ipb factor stuff */
91 int last_mc_mb_var_sum;
92 int last_mb_var_sum;
93 UINT64 i_cplx_sum[5];
94 UINT64 p_cplx_sum[5];
95 UINT64 mv_bits_sum[5];
96 UINT64 qscale_sum[5];
97 int frame_count[5];
98 int last_non_b_pict_type;
99 }RateControlContext;
100
101
102 typedef struct ScanTable{
103 const UINT8 *scantable;
104 UINT8 permutated[64];
105 UINT8 raster_end[64];
106 #ifdef ARCH_POWERPC
107 /* Used by dct_quantise_alitvec to find last-non-zero */
108 UINT8 __align8 inverse[64];
109 #endif
110 } ScanTable;
111
112 typedef struct Picture{
113 FF_COMMON_FRAME
114
115 int mb_var_sum; /* sum of MB variance for current frame */
116 int mc_mb_var_sum; /* motion compensated MB variance for current frame */
117 uint16_t *mb_var; /* Table for MB variances */
118 uint16_t *mc_mb_var; /* Table for motion compensated MB variances */
119 uint8_t *mb_mean; /* Table for MB luminance */
120 int b_frame_score; /* */
121 } Picture;
122
123 typedef struct ParseContext{
124 UINT8 *buffer;
125 int index;
126 int last_index;
127 int buffer_size;
128 int state;
129 int frame_start_found;
130 } ParseContext;
131
132 typedef struct MpegEncContext {
133 struct AVCodecContext *avctx;
134 /* the following parameters must be initialized before encoding */
135 int width, height; /* picture size. must be a multiple of 16 */
136 int gop_size;
137 int frame_rate; /* number of frames per second */
138 int intra_only; /* if true, only intra pictures are generated */
139 int bit_rate; /* wanted bit rate */
140 int bit_rate_tolerance; /* amount of +- bits (>0)*/
141 enum OutputFormat out_format; /* output format */
142 int h263_pred; /* use mpeg4/h263 ac/dc predictions */
143
144 /* the following codec id fields are deprecated in favor of codec_id */
145 int h263_plus; /* h263 plus headers */
146 int h263_rv10; /* use RV10 variation for H263 */
147 int h263_msmpeg4; /* generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)*/
148 int h263_intel; /* use I263 intel h263 header */
149
150 int codec_id; /* see CODEC_ID_xxx */
151 int fixed_qscale; /* fixed qscale if non zero */
152 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0) */
153 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
154 int qmin; /* min qscale */
155 int qmax; /* max qscale */
156 int max_qdiff; /* max qscale difference between frames */
157 int encoding; /* true if we are encoding (vs decoding) */
158 int flags; /* AVCodecContext.flags (HQ, MV4, ...) */
159 int max_b_frames; /* max number of b-frames for encoding */
160 int b_frame_strategy;
161 int luma_elim_threshold;
162 int chroma_elim_threshold;
163 int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
164 int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
165 /* the following fields are managed internally by the encoder */
166
167 /* bit output */
168 PutBitContext pb;
169
170 /* sequence parameters */
171 int context_initialized;
172 int input_picture_number;
173 int picture_number;
174 int picture_in_gop_number; /* 0-> first pic in gop, ... */
175 int b_frames_since_non_b; /* used for encoding, relative to not yet reordered input */
176 int mb_width, mb_height; /* number of MBs horizontally & vertically */
177 int h_edge_pos, v_edge_pos;/* horizontal / vertical position of the right/bottom edge (pixel replicateion)*/
178 int mb_num; /* number of MBs of a picture */
179 int linesize; /* line size, in bytes, may be different from width */
180 int uvlinesize; /* line size, for chroma in bytes, may be different from width */
181 Picture picture[MAX_PICTURE_COUNT]; /* main picture buffer */
182 Picture *input_picture[MAX_PICTURE_COUNT]; /* next pictures on display order for encoding*/
183 Picture *reordered_input_picture[MAX_PICTURE_COUNT]; /* pointer to the next pictures in codedorder for encoding*/
184 Picture last_picture; /* previous picture */
185 Picture next_picture; /* previous picture (for bidir pred) */
186 Picture new_picture; /* source picture for encoding */
187 Picture current_picture; /* buffer to store the decompressed current picture */
188 int last_dc[3]; /* last DC values for MPEG1 */
189 INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
190 int y_dc_scale, c_dc_scale;
191 UINT8 *y_dc_scale_table; /* qscale -> y_dc_scale table */
192 UINT8 *c_dc_scale_table; /* qscale -> c_dc_scale table */
193 UINT8 *coded_block; /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/
194 INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
195 int ac_pred;
196 int mb_skiped; /* MUST BE SET only during DECODING */
197 UINT8 *mbskip_table; /* used to avoid copy if macroblock skipped (for black regions for example)
198 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
199 UINT8 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */
200 UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */
201 UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */
202 UINT8 *edge_emu_buffer;
203
204 int qscale; /* QP */
205 float frame_qscale; /* qscale from the frame level rc FIXME remove*/
206 int adaptive_quant; /* use adaptive quantization */
207 int dquant; /* qscale difference to prev qscale */
208 int pict_type; /* I_TYPE, P_TYPE, B_TYPE, ... */
209 int last_pict_type;
210 int last_non_b_pict_type; /* used for mpeg4 gmc b-frames & ratecontrol */
211 int frame_rate_index;
212 /* motion compensation */
213 int unrestricted_mv;
214 int h263_long_vectors; /* use horrible h263v1 long vector mode */
215
216 DSPContext dsp; /* pointers for accelerated dsp fucntions */
217 int f_code; /* forward MV resolution */
218 int b_code; /* backward MV resolution for B Frames (mpeg4) */
219 INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */
220 INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
221 INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */
222 INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */
223 INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
224 INT16 (*b_bidir_back_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
225 INT16 (*b_direct_forw_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */
226 INT16 (*b_direct_back_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */
227 INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */
228 int me_method; /* ME algorithm */
229 uint8_t *me_scratchpad; /* data area for the me algo, so that the ME doesnt need to malloc/free */
230 uint32_t *me_map; /* map to avoid duplicate evaluations */
231 uint16_t *me_score_map; /* map to store the SADs */
232 int me_map_generation;
233 int skip_me; /* set if ME is skiped for the current MB */
234 int scene_change_score;
235 int mv_dir;
236 #define MV_DIR_BACKWARD 1
237 #define MV_DIR_FORWARD 2
238 #define MV_DIRECT 4 // bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
239 int mv_type;
240 #define MV_TYPE_16X16 0 /* 1 vector for the whole mb */
241 #define MV_TYPE_8X8 1 /* 4 vectors (h263, mpeg4 4MV) */
242 #define MV_TYPE_16X8 2 /* 2 vectors, one per 16x8 block */
243 #define MV_TYPE_FIELD 3 /* 2 vectors, one per field */
244 #define MV_TYPE_DMV 4 /* 2 vectors, special mpeg2 Dual Prime Vectors */
245 /* motion vectors for a macroblock
246 first coordinate : 0 = forward 1 = backward
247 second " : depend on type
248 third " : 0 = x, 1 = y
249 */
250 int mv[2][4][2];
251 int field_select[2][2];
252 int last_mv[2][2][2]; /* last MV, used for MV prediction in MPEG1 & B-frame MPEG4 */
253 UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV, used for ME */
254 UINT8 *fcode_tab; /* smallest fcode needed for each MV */
255
256 int no_rounding; /* apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
257 for b-frames rounding mode is allways 0 */
258
259 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
260 when set to 2 idct/dequant will be skipped too */
261
262 /* macroblock layer */
263 int mb_x, mb_y;
264 int mb_incr;
265 int mb_intra;
266 UINT8 *mb_type; /* Table for MB type */
267 #define MB_TYPE_INTRA 0x01
268 #define MB_TYPE_INTER 0x02
269 #define MB_TYPE_INTER4V 0x04
270 #define MB_TYPE_SKIPED 0x08
271 #define MB_TYPE_GMC 0x10
272
273 #define MB_TYPE_DIRECT 0x10
274 #define MB_TYPE_FORWARD 0x20
275 #define MB_TYPE_BACKWARD 0x40
276 #define MB_TYPE_BIDIR 0x80
277
278 int block_index[6]; /* index to current MB in block based arrays with edges*/
279 int block_wrap[6];
280
281 /* matrix transmitted in the bitstream */
282 UINT16 intra_matrix[64];
283 UINT16 chroma_intra_matrix[64];
284 UINT16 inter_matrix[64];
285 UINT16 chroma_inter_matrix[64];
286 #define QUANT_BIAS_SHIFT 4
287 int intra_quant_bias; /* bias for the quantizer */
288 int inter_quant_bias; /* bias for the quantizer */
289 int min_qcoeff; /* minimum encodable coefficient */
290 int max_qcoeff; /* maximum encodable coefficient */
291 /* precomputed matrix (combine qscale and DCT renorm) */
292 int __align8 q_intra_matrix[32][64];
293 int __align8 q_inter_matrix[32][64];
294 /* identical to the above but for MMX & these are not permutated */
295 UINT16 __align8 q_intra_matrix16[32][64];
296 UINT16 __align8 q_inter_matrix16[32][64];
297 UINT16 __align8 q_intra_matrix16_bias[32][64];
298 UINT16 __align8 q_inter_matrix16_bias[32][64];
299 int block_last_index[6]; /* last non zero coefficient in block */
300 /* scantables */
301 ScanTable __align8 intra_scantable;
302 ScanTable intra_h_scantable;
303 ScanTable intra_v_scantable;
304 ScanTable inter_scantable; // if inter == intra then intra should be used to reduce tha cache usage
305 UINT8 idct_permutation[64];
306 int idct_permutation_type;
307 #define FF_NO_IDCT_PERM 1
308 #define FF_LIBMPEG2_IDCT_PERM 2
309 #define FF_SIMPLE_IDCT_PERM 3
310 #define FF_TRANSPOSE_IDCT_PERM 4
311
312 void *opaque; /* private data for the user */
313
314 /* bit rate control */
315 int I_frame_bits; //FIXME used in mpeg12 ...
316 INT64 wanted_bits;
317 INT64 total_bits;
318 int frame_bits; /* bits used for the current frame */
319 RateControlContext rc_context; // contains stuff only accessed in ratecontrol.c
320
321 /* statistics, used for 2-pass encoding */
322 int mv_bits;
323 int header_bits;
324 int i_tex_bits;
325 int p_tex_bits;
326 int i_count;
327 int f_count;
328 int b_count;
329 int skip_count;
330 int misc_bits; // cbp, mb_type
331 int last_bits; //temp var used for calculating the above vars
332
333 /* error concealment / resync */
334 UINT8 *error_status_table; /* table of the error status of each MB */
335 #define VP_START 1 /* current MB is the first after a resync marker */
336 #define AC_ERROR 2
337 #define DC_ERROR 4
338 #define MV_ERROR 8
339 #define AC_END 16
340 #define DC_END 32
341 #define MV_END 64
342 //FIXME some prefix?
343
344 int resync_mb_x; /* x position of last resync marker */
345 int resync_mb_y; /* y position of last resync marker */
346 GetBitContext last_resync_gb; /* used to serach for the next resync marker */
347 int mb_num_left; /* number of MBs left in this video packet (for partitioned Slices only)*/
348 int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */
349 int error_resilience;
350
351 ParseContext parse_context;
352
353 /* H.263 specific */
354 int gob_number;
355 int gob_index;
356
357 /* H.263+ specific */
358 int umvplus;
359 int umvplus_dec;
360 int h263_aic; /* Advanded INTRA Coding (AIC) */
361 int h263_aic_dir; /* AIC direction: 0 = left, 1 = top */
362
363 /* mpeg4 specific */
364 int time_increment_resolution;
365 int time_increment_bits; /* number of bits to represent the fractional part of time */
366 int last_time_base;
367 int time_base; /* time in seconds of last I,P,S Frame */
368 INT64 time; /* time of current frame */
369 INT64 last_non_b_time;
370 UINT16 pp_time; /* time distance between the last 2 p,s,i frames */
371 UINT16 pb_time; /* time distance between the last b and p,s,i frame */
372 UINT16 pp_field_time;
373 UINT16 pb_field_time; /* like above, just for interlaced */
374 int shape;
375 int vol_sprite_usage;
376 int sprite_width;
377 int sprite_height;
378 int sprite_left;
379 int sprite_top;
380 int sprite_brightness_change;
381 int num_sprite_warping_points;
382 int real_sprite_warping_points;
383 int sprite_offset[2][2]; /* sprite offset[isChroma][isMVY] */
384 int sprite_delta[2][2]; /* sprite_delta [isY][isMVY] */
385 int sprite_shift[2]; /* sprite shift [isChroma] */
386 int mcsel;
387 int quant_precision;
388 int quarter_sample; /* 1->qpel, 0->half pel ME/MC */
389 int scalability;
390 int hierachy_type;
391 int enhancement_type;
392 int new_pred;
393 int reduced_res_vop;
394 int aspect_ratio_info;
395 int aspected_width;
396 int aspected_height;
397 int sprite_warping_accuracy;
398 int low_latency_sprite;
399 int data_partitioning; /* data partitioning flag from header */
400 int partitioned_frame; /* is current frame partitioned */
401 int rvlc; /* reversible vlc */
402 int resync_marker; /* could this stream contain resync markers*/
403 int low_delay; /* no reordering needed / has no b-frames */
404 int vo_type;
405 int vol_control_parameters; /* does the stream contain the low_delay flag, used to workaround buggy encoders */
406 PutBitContext tex_pb; /* used for data partitioned VOPs */
407 PutBitContext pb2; /* used for data partitioned VOPs */
408 #define PB_BUFFER_SIZE 1024*256
409 uint8_t *tex_pb_buffer;
410 uint8_t *pb2_buffer;
411 int mpeg_quant;
412 #define CO_LOCATED_TYPE_4MV 1
413 #define CO_LOCATED_TYPE_FIELDMV 2
414 INT8 *co_located_type_table; /* 4mv & field_mv info for next b frame */
415 INT16 (*field_mv_table)[2][2]; /* used for interlaced b frame decoding */
416 INT8 (*field_select_table)[2]; /* wtf, no really another table for interlaced b frames */
417 int t_frame; /* time distance of first I -> B, used for interlaced b frames */
418 int padding_bug_score; /* used to detect the VERY common padding bug in MPEG4 */
419
420 /* divx specific, used to workaround (many) bugs in divx5 */
421 int divx_version;
422 int divx_build;
423 #define BITSTREAM_BUFFER_SIZE 1024*256
424 UINT8 *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
425 int bitstream_buffer_size;
426
427 int xvid_build;
428
429 /* lavc specific stuff, used to workaround bugs in libavcodec */
430 int ffmpeg_version;
431 int lavc_build;
432
433 /* RV10 specific */
434 int rv10_version; /* RV10 version: 0 or 3 */
435 int rv10_first_dc_coded[3];
436
437 /* MJPEG specific */
438 struct MJpegContext *mjpeg_ctx;
439 int mjpeg_vsample[3]; /* vertical sampling factors, default = {2, 1, 1} */
440 int mjpeg_hsample[3]; /* horizontal sampling factors, default = {2, 1, 1} */
441 int mjpeg_write_tables; /* do we want to have quantisation- and
442 huffmantables in the jpeg file ? */
443 int mjpeg_data_only_frames; /* frames only with SOI, SOS and EOI markers */
444
445 /* MSMPEG4 specific */
446 int mv_table_index;
447 int rl_table_index;
448 int rl_chroma_table_index;
449 int dc_table_index;
450 int use_skip_mb_code;
451 int slice_height; /* in macroblocks */
452 int first_slice_line; /* used in mpeg4 too to handle resync markers */
453 int flipflop_rounding;
454 int msmpeg4_version; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8*/
455 int per_mb_rl_table;
456 int esc3_level_length;
457 int esc3_run_length;
458 /* [mb_intra][isChroma][level][run][last] */
459 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
460 int inter_intra_pred;
461
462 /* decompression specific */
463 GetBitContext gb;
464
465 /* Mpeg1 specific */
466 int fake_picture_number; /* picture number at the bitstream frame rate */
467 int gop_picture_number; /* index of the first picture of a GOP based on fake_pic_num & mpeg1 specific */
468
469 /* MPEG2 specific - I wish I had not to support this mess. */
470 int progressive_sequence;
471 int mpeg_f_code[2][2];
472 int picture_structure;
473 /* picture type */
474 #define PICT_TOP_FIELD 1
475 #define PICT_BOTTOM_FIELD 2
476 #define PICT_FRAME 3
477
478 int intra_dc_precision;
479 int frame_pred_frame_dct;
480 int top_field_first;
481 int concealment_motion_vectors;
482 int q_scale_type;
483 int intra_vlc_format;
484 int alternate_scan;
485 int repeat_first_field;
486 int chroma_420_type;
487 int progressive_frame;
488 int mpeg2;
489 int full_pel[2];
490 int interlaced_dct;
491 int first_slice;
492
493 /* RTP specific */
494 /* These are explained on avcodec.h */
495 int rtp_mode;
496 int rtp_payload_size;
497 void (*rtp_callback)(void *data, int size, int packet_number);
498 UINT8 *ptr_lastgob;
499 UINT8 *ptr_last_mb_line;
500 UINT32 mb_line_avgsize;
501
502 DCTELEM (*block)[64]; /* points to one of the following blocks */
503 DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block
504 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
505 #define SLICE_OK 0
506 #define SLICE_ERROR -1
507 #define SLICE_END -2 //end marker found
508 #define SLICE_NOEND -3 //no end marker or error found but mb count exceeded
509
510 void (*dct_unquantize_mpeg1)(struct MpegEncContext *s,
511 DCTELEM *block, int n, int qscale);
512 void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
513 DCTELEM *block, int n, int qscale);
514 void (*dct_unquantize_h263)(struct MpegEncContext *s,
515 DCTELEM *block, int n, int qscale);
516 void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
517 DCTELEM *block, int n, int qscale);
518 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
519 void (*fdct)(DCTELEM *block/* align 16*/);
520 void (*idct_put)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
521 void (*idct_add)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
522 } MpegEncContext;
523
524
525 int DCT_common_init(MpegEncContext *s);
526 int MPV_common_init(MpegEncContext *s);
527 void MPV_common_end(MpegEncContext *s);
528 void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
529 int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
530 void MPV_frame_end(MpegEncContext *s);
531 #ifdef HAVE_MMX
532 void MPV_common_init_mmx(MpegEncContext *s);
533 #endif
534 #ifdef ARCH_ALPHA
535 void MPV_common_init_axp(MpegEncContext *s);
536 #endif
537 #ifdef HAVE_MLIB
538 void MPV_common_init_mlib(MpegEncContext *s);
539 #endif
540 #ifdef HAVE_MMI
541 void MPV_common_init_mmi(MpegEncContext *s);
542 #endif
543 #ifdef ARCH_ARMV4L
544 void MPV_common_init_armv4l(MpegEncContext *s);
545 #endif
546 #ifdef ARCH_POWERPC
547 void MPV_common_init_ppc(MpegEncContext *s);
548 #endif
549 extern void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w);
550 void ff_conceal_past_errors(MpegEncContext *s, int conceal_all);
551 void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length);
552 void ff_clean_intra_table_entries(MpegEncContext *s);
553 void ff_init_scantable(MpegEncContext *s, ScanTable *st, const UINT8 *src_scantable);
554 void ff_error_resilience(MpegEncContext *s);
555 void ff_draw_horiz_band(MpegEncContext *s);
556 char ff_get_pict_type_char(int pict_type);
557
558
559 extern int ff_bit_exact;
560
561 static inline void ff_init_block_index(MpegEncContext *s){
562 s->block_index[0]= s->block_wrap[0]*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
563 s->block_index[1]= s->block_wrap[0]*(s->mb_y*2 + 1) + s->mb_x*2;
564 s->block_index[2]= s->block_wrap[0]*(s->mb_y*2 + 2) - 1 + s->mb_x*2;
565 s->block_index[3]= s->block_wrap[0]*(s->mb_y*2 + 2) + s->mb_x*2;
566 s->block_index[4]= s->block_wrap[4]*(s->mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2) + s->mb_x;
567 s->block_index[5]= s->block_wrap[4]*(s->mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2) + s->mb_x;
568 }
569
570 static inline void ff_update_block_index(MpegEncContext *s){
571 s->block_index[0]+=2;
572 s->block_index[1]+=2;
573 s->block_index[2]+=2;
574 s->block_index[3]+=2;
575 s->block_index[4]++;
576 s->block_index[5]++;
577 }
578
579
580 /* motion_est.c */
581 void ff_estimate_p_frame_motion(MpegEncContext * s,
582 int mb_x, int mb_y);
583 void ff_estimate_b_frame_motion(MpegEncContext * s,
584 int mb_x, int mb_y);
585 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
586 void ff_fix_long_p_mvs(MpegEncContext * s);
587 void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type);
588
589
590 /* mpeg12.c */
591 extern const INT16 ff_mpeg1_default_intra_matrix[64];
592 extern const INT16 ff_mpeg1_default_non_intra_matrix[64];
593 extern UINT8 ff_mpeg1_dc_scale_table[128];
594
595 void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
596 void mpeg1_encode_mb(MpegEncContext *s,
597 DCTELEM block[6][64],
598 int motion_x, int motion_y);
599 void ff_mpeg1_encode_init(MpegEncContext *s);
600
601
602 /* h263enc.c */
603 typedef struct RLTable {
604 int n; /* number of entries of table_vlc minus 1 */
605 int last; /* number of values for last = 0 */
606 const UINT16 (*table_vlc)[2];
607 const INT8 *table_run;
608 const INT8 *table_level;
609 UINT8 *index_run[2]; /* encoding only */
610 INT8 *max_level[2]; /* encoding & decoding */
611 INT8 *max_run[2]; /* encoding & decoding */
612 VLC vlc; /* decoding only deprected FIXME remove*/
613 RL_VLC_ELEM *rl_vlc[32]; /* decoding only */
614 } RLTable;
615
616 void init_rl(RLTable *rl);
617 void init_vlc_rl(RLTable *rl);
618
619 static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
620 {
621 int index;
622 index = rl->index_run[last][run];
623 if (index >= rl->n)
624 return rl->n;
625 if (level > rl->max_level[last][run])
626 return rl->n;
627 return index + level - 1;
628 }
629
630 extern UINT8 ff_mpeg4_y_dc_scale_table[32];
631 extern UINT8 ff_mpeg4_c_dc_scale_table[32];
632 extern const INT16 ff_mpeg4_default_intra_matrix[64];
633 extern const INT16 ff_mpeg4_default_non_intra_matrix[64];
634 void h263_encode_mb(MpegEncContext *s,
635 DCTELEM block[6][64],
636 int motion_x, int motion_y);
637 void mpeg4_encode_mb(MpegEncContext *s,
638 DCTELEM block[6][64],
639 int motion_x, int motion_y);
640 void h263_encode_picture_header(MpegEncContext *s, int picture_number);
641 int h263_encode_gob_header(MpegEncContext * s, int mb_line);
642 INT16 *h263_pred_motion(MpegEncContext * s, int block,
643 int *px, int *py);
644 void mpeg4_pred_ac(MpegEncContext * s, INT16 *block, int n,
645 int dir);
646 void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
647 void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
648 void h263_encode_init(MpegEncContext *s);
649 void h263_decode_init_vlc(MpegEncContext *s);
650 int h263_decode_picture_header(MpegEncContext *s);
651 int ff_h263_decode_gob_header(MpegEncContext *s);
652 int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
653
654
655 int intel_h263_decode_picture_header(MpegEncContext *s);
656 int ff_h263_decode_mb(MpegEncContext *s,
657 DCTELEM block[6][64]);
658 int h263_get_picture_format(int width, int height);
659 void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
660 void ff_mpeg4_clean_buffers(MpegEncContext *s);
661 void ff_mpeg4_stuffing(PutBitContext * pbc);
662 void ff_mpeg4_init_partitions(MpegEncContext *s);
663 void ff_mpeg4_merge_partitions(MpegEncContext *s);
664 void ff_clean_mpeg4_qscales(MpegEncContext *s);
665 void ff_clean_h263_qscales(MpegEncContext *s);
666 int ff_mpeg4_decode_partitions(MpegEncContext *s);
667 int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
668 int ff_h263_resync(MpegEncContext *s);
669 int ff_h263_get_gob_height(MpegEncContext *s);
670
671
672 /* rv10.c */
673 void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
674 int rv_decode_dc(MpegEncContext *s, int n);
675
676
677 /* msmpeg4.c */
678 void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
679 void msmpeg4_encode_ext_header(MpegEncContext * s);
680 void msmpeg4_encode_mb(MpegEncContext * s,
681 DCTELEM block[6][64],
682 int motion_x, int motion_y);
683 int msmpeg4_decode_picture_header(MpegEncContext * s);
684 int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
685 int ff_msmpeg4_decode_init(MpegEncContext *s);
686 void ff_msmpeg4_encode_init(MpegEncContext *s);
687
688
689 /* mjpegenc.c */
690 int mjpeg_init(MpegEncContext *s);
691 void mjpeg_close(MpegEncContext *s);
692 void mjpeg_encode_mb(MpegEncContext *s,
693 DCTELEM block[6][64]);
694 void mjpeg_picture_header(MpegEncContext *s);
695 void mjpeg_picture_trailer(MpegEncContext *s);
696
697
698 /* rate control */
699 int ff_rate_control_init(MpegEncContext *s);
700 float ff_rate_estimate_qscale(MpegEncContext *s);
701 void ff_write_pass1_stats(MpegEncContext *s);
702 void ff_rate_control_uninit(MpegEncContext *s);
703 double ff_eval(char *s, double *const_value, char **const_name,
704 double (**func1)(void *, double), char **func1_name,
705 double (**func2)(void *, double, double), char **func2_name,
706 void *opaque);
707
708
709 #endif /* AVCODEC_MPEGVIDEO_H */