2 * Generic DCT based hybrid video encoder
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
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.
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.
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
20 #ifndef AVCODEC_MPEGVIDEO_H
21 #define AVCODEC_MPEGVIDEO_H
23 #define FRAME_SKIPED 100 // return value for header parsers if frame is not coded
31 #define MPEG_BUF_SIZE (16 * 1024)
33 #define QMAT_SHIFT_MMX 16
38 #define REORDER_BUFFER_SIZE (FF_MAX_B_FRAMES+2)
40 #define ME_MAP_SIZE 64
41 #define ME_MAP_SHIFT 3
42 #define ME_MAP_MV_BITS 11
44 /* run length table */
48 typedef struct Predictor{
54 typedef struct RateControlEntry{
71 typedef struct RateControlContext{
73 int num_entries; /* number of RateControlEntries */
74 RateControlEntry *entry;
75 int buffer_index; /* amount of bits in the video/audio buffer */
77 double short_term_qsum; /* sum of recent qscales */
78 double short_term_qcount; /* count of recent qscales */
79 double pass1_rc_eq_output_sum;/* sum of the output of the rc equation, this is used for normalization */
80 double pass1_wanted_bits; /* bits which should have been outputed by the pass1 code (including complexity init) */
82 double last_qscale_for[5]; /* last qscale for a specific pict type, used for max_diff & ipb factor stuff */
83 int last_mc_mb_var_sum;
87 UINT64 mv_bits_sum[5];
90 int last_non_b_pict_type;
93 typedef struct ReorderBuffer{
99 int picture_in_gop_number;
102 typedef struct ScanTable{
103 const UINT8 *scantable;
104 UINT8 permutated[64];
105 UINT8 raster_end[64];
107 /* Used by dct_quantise_alitvec to find last-non-zero */
108 UINT8 __align8 inverse[64];
112 typedef struct ParseContext{
118 int frame_start_found;
121 typedef struct MpegEncContext {
122 struct AVCodecContext *avctx;
123 /* the following parameters must be initialized before encoding */
124 int width, height; /* picture size. must be a multiple of 16 */
126 int frame_rate; /* number of frames per second */
127 int intra_only; /* if true, only intra pictures are generated */
128 int bit_rate; /* wanted bit rate */
129 int bit_rate_tolerance; /* amount of +- bits (>0)*/
130 enum OutputFormat out_format; /* output format */
131 int h263_pred; /* use mpeg4/h263 ac/dc predictions */
133 /* the following codec id fields are deprecated in favor of codec_id */
134 int h263_plus; /* h263 plus headers */
135 int h263_rv10; /* use RV10 variation for H263 */
136 int h263_msmpeg4; /* generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)*/
137 int h263_intel; /* use I263 intel h263 header */
139 int codec_id; /* see CODEC_ID_xxx */
140 int fixed_qscale; /* fixed qscale if non zero */
141 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0) */
142 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
143 int qmin; /* min qscale */
144 int qmax; /* max qscale */
145 int max_qdiff; /* max qscale difference between frames */
146 int encoding; /* true if we are encoding (vs decoding) */
147 int flags; /* AVCodecContext.flags (HQ, MV4, ...) */
148 int force_input_type;/* 0= no force, otherwise I_TYPE, P_TYPE, ... */
149 int max_b_frames; /* max number of b-frames for encoding */
150 int b_frame_strategy;
151 int luma_elim_threshold;
152 int chroma_elim_threshold;
153 int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
154 int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
155 /* the following fields are managed internally by the encoder */
160 /* sequence parameters */
161 int context_initialized;
162 int input_picture_number;
163 int input_picture_in_gop_number; /* 0-> first pic in gop, ... */
165 int fake_picture_number; /* picture number at the bitstream frame rate */
166 int gop_picture_number; /* index of the first picture of a GOP based on fake_pic_num & mpeg1 specific */
167 int picture_in_gop_number; /* 0-> first pic in gop, ... */
168 int b_frames_since_non_b; /* used for encoding, relative to not yet reordered input */
169 int mb_width, mb_height; /* number of MBs horizontally & vertically */
170 int h_edge_pos, v_edge_pos;/* horizontal / vertical position of the right/bottom edge (pixel replicateion)*/
171 int mb_num; /* number of MBs of a picture */
172 int linesize; /* line size, in bytes, may be different from width */
173 int uvlinesize; /* line size, for chroma in bytes, may be different from width */
174 UINT8 *new_picture[3]; /* picture to be compressed */
175 UINT8 *picture_buffer[REORDER_BUFFER_SIZE][3]; /* internal buffers used for reordering of input pictures */
176 int picture_buffer_index;
177 ReorderBuffer coded_order[REORDER_BUFFER_SIZE];
178 UINT8 *last_picture[3]; /* previous picture */
179 UINT8 *last_picture_base[3]; /* real start of the picture */
180 UINT8 *next_picture[3]; /* previous picture (for bidir pred) */
181 UINT8 *next_picture_base[3]; /* real start of the picture */
182 UINT8 *aux_picture[3]; /* aux picture (for B frames only) */
183 UINT8 *aux_picture_base[3]; /* real start of the picture */
184 UINT8 *current_picture[3]; /* buffer to store the decompressed current picture */
185 void *last_dr_opaque;
186 void *next_dr_opaque;
187 int ip_buffer_count; /* number of buffers, currently only >2 if dr1 is used */
188 int num_available_buffers; /* is 0 at the start & after seeking, after the first I frame its 1 after next I/P 2 */
189 int last_dc[3]; /* last DC values for MPEG1 */
190 INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
191 int y_dc_scale, c_dc_scale;
192 UINT8 *y_dc_scale_table; /* qscale -> y_dc_scale table */
193 UINT8 *c_dc_scale_table; /* qscale -> c_dc_scale table */
194 UINT8 *coded_block; /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/
195 INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
197 int mb_skiped; /* MUST BE SET only during DECODING */
198 UINT8 *mbskip_table; /* used to avoid copy if macroblock skipped (for black regions for example)
199 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
200 UINT8 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */
201 UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */
202 UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */
203 INT8 *qscale_table; /* used to store qscale */
204 INT8 *aux_qscale_table;
205 INT8 *next_qscale_table;
206 INT8 *last_qscale_table; //FIXME move these into some picture struct (MpegEncContext.aux.qscale_table[])
207 UINT8 *edge_emu_buffer;
209 int input_qscale; /* qscale prior to reordering of frames */
210 int input_pict_type; /* pict_type prior to reordering of frames */
211 int force_type; /* 0= no force, otherwise I_TYPE, P_TYPE, ... */
213 float frame_qscale; /* qscale from the frame level rc */
214 int adaptive_quant; /* use adaptive quantization */
215 int dquant; /* qscale difference to prev qscale */
216 int pict_type; /* I_TYPE, P_TYPE, B_TYPE, ... */
218 int last_non_b_pict_type; /* used for mpeg4 gmc b-frames & ratecontrol */
219 int frame_rate_index;
220 /* motion compensation */
222 int h263_long_vectors; /* use horrible h263v1 long vector mode */
224 DSPContext dsp; /* pointers for accelerated dsp fucntions */
225 int f_code; /* forward MV resolution */
226 int b_code; /* backward MV resolution for B Frames (mpeg4) */
227 INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */
228 INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
229 INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */
230 INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */
231 INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
232 INT16 (*b_bidir_back_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
233 INT16 (*b_direct_forw_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */
234 INT16 (*b_direct_back_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */
235 INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */
236 int me_method; /* ME algorithm */
237 uint8_t *me_scratchpad; /* data area for the me algo, so that the ME doesnt need to malloc/free */
238 uint32_t *me_map; /* map to avoid duplicate evaluations */
239 uint16_t *me_score_map; /* map to store the SADs */
240 int me_map_generation;
241 int skip_me; /* set if ME is skiped for the current MB */
242 int scene_change_score;
244 #define MV_DIR_BACKWARD 1
245 #define MV_DIR_FORWARD 2
246 #define MV_DIRECT 4 // bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
248 #define MV_TYPE_16X16 0 /* 1 vector for the whole mb */
249 #define MV_TYPE_8X8 1 /* 4 vectors (h263, mpeg4 4MV) */
250 #define MV_TYPE_16X8 2 /* 2 vectors, one per 16x8 block */
251 #define MV_TYPE_FIELD 3 /* 2 vectors, one per field */
252 #define MV_TYPE_DMV 4 /* 2 vectors, special mpeg2 Dual Prime Vectors */
253 /* motion vectors for a macroblock
254 first coordinate : 0 = forward 1 = backward
255 second " : depend on type
256 third " : 0 = x, 1 = y
259 int field_select[2][2];
260 int last_mv[2][2][2]; /* last MV, used for MV prediction in MPEG1 & B-frame MPEG4 */
261 UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV, used for ME */
262 UINT8 *fcode_tab; /* smallest fcode needed for each MV */
265 int no_rounding; /* apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
266 for b-frames rounding mode is allways 0 */
268 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
269 when set to 2 idct/dequant will be skipped too */
271 /* macroblock layer */
275 UINT16 *mb_var; /* Table for MB variances */
276 UINT16 *mc_mb_var; /* Table for motion compensated MB variances */
277 UINT8 *mb_mean; /* Table for MB luminance */
278 UINT8 *mb_type; /* Table for MB type */
279 #define MB_TYPE_INTRA 0x01
280 #define MB_TYPE_INTER 0x02
281 #define MB_TYPE_INTER4V 0x04
282 #define MB_TYPE_SKIPED 0x08
283 #define MB_TYPE_GMC 0x10
285 #define MB_TYPE_DIRECT 0x10
286 #define MB_TYPE_FORWARD 0x20
287 #define MB_TYPE_BACKWARD 0x40
288 #define MB_TYPE_BIDIR 0x80
290 int block_index[6]; /* index to current MB in block based arrays with edges*/
293 /* matrix transmitted in the bitstream */
294 UINT16 intra_matrix[64];
295 UINT16 chroma_intra_matrix[64];
296 UINT16 inter_matrix[64];
297 UINT16 chroma_inter_matrix[64];
298 #define QUANT_BIAS_SHIFT 4
299 int intra_quant_bias; /* bias for the quantizer */
300 int inter_quant_bias; /* bias for the quantizer */
301 int min_qcoeff; /* minimum encodable coefficient */
302 int max_qcoeff; /* maximum encodable coefficient */
303 /* precomputed matrix (combine qscale and DCT renorm) */
304 int __align8 q_intra_matrix[32][64];
305 int __align8 q_inter_matrix[32][64];
306 /* identical to the above but for MMX & these are not permutated */
307 UINT16 __align8 q_intra_matrix16[32][64];
308 UINT16 __align8 q_inter_matrix16[32][64];
309 UINT16 __align8 q_intra_matrix16_bias[32][64];
310 UINT16 __align8 q_inter_matrix16_bias[32][64];
311 int block_last_index[6]; /* last non zero coefficient in block */
313 ScanTable __align8 intra_scantable;
314 ScanTable intra_h_scantable;
315 ScanTable intra_v_scantable;
316 ScanTable inter_scantable; // if inter == intra then intra should be used to reduce tha cache usage
317 UINT8 idct_permutation[64];
318 int idct_permutation_type;
319 #define FF_NO_IDCT_PERM 1
320 #define FF_LIBMPEG2_IDCT_PERM 2
321 #define FF_SIMPLE_IDCT_PERM 3
322 #define FF_TRANSPOSE_IDCT_PERM 4
324 void *opaque; /* private data for the user */
326 /* bit rate control */
327 int I_frame_bits; //FIXME used in mpeg12 ...
328 int mb_var_sum; /* sum of MB variance for current frame */
329 int mc_mb_var_sum; /* motion compensated MB variance for current frame */
332 int frame_bits; /* bits used for the current frame */
333 RateControlContext rc_context; // contains stuff only accessed in ratecontrol.c
335 /* statistics, used for 2-pass encoding */
344 int misc_bits; // cbp, mb_type
345 int last_bits; //temp var used for calculating the above vars
347 /* error concealment / resync */
348 UINT8 *error_status_table; /* table of the error status of each MB */
349 #define VP_START 1 /* current MB is the first after a resync marker */
358 int resync_mb_x; /* x position of last resync marker */
359 int resync_mb_y; /* y position of last resync marker */
360 GetBitContext last_resync_gb; /* used to serach for the next resync marker */
361 int mb_num_left; /* number of MBs left in this video packet (for partitioned Slices only)*/
362 int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */
363 int error_resilience;
365 ParseContext parse_context;
371 /* H.263+ specific */
374 int h263_aic; /* Advanded INTRA Coding (AIC) */
375 int h263_aic_dir; /* AIC direction: 0 = left, 1 = top */
378 int time_increment_resolution;
379 int time_increment_bits; /* number of bits to represent the fractional part of time */
381 int time_base; /* time in seconds of last I,P,S Frame */
382 INT64 time; /* time of current frame */
383 INT64 last_non_b_time;
384 UINT16 pp_time; /* time distance between the last 2 p,s,i frames */
385 UINT16 pb_time; /* time distance between the last b and p,s,i frame */
386 UINT16 pp_field_time;
387 UINT16 pb_field_time; /* like above, just for interlaced */
389 int vol_sprite_usage;
394 int sprite_brightness_change;
395 int num_sprite_warping_points;
396 int real_sprite_warping_points;
397 int sprite_offset[2][2]; /* sprite offset[isChroma][isMVY] */
398 int sprite_delta[2][2]; /* sprite_delta [isY][isMVY] */
399 int sprite_shift[2]; /* sprite shift [isChroma] */
402 int quarter_sample; /* 1->qpel, 0->half pel ME/MC */
405 int enhancement_type;
408 int aspect_ratio_info;
411 int sprite_warping_accuracy;
412 int low_latency_sprite;
413 int data_partitioning; /* data partitioning flag from header */
414 int partitioned_frame; /* is current frame partitioned */
415 int rvlc; /* reversible vlc */
416 int resync_marker; /* could this stream contain resync markers*/
417 int low_delay; /* no reordering needed / has no b-frames */
419 int vol_control_parameters; /* does the stream contain the low_delay flag, used to workaround buggy encoders */
420 PutBitContext tex_pb; /* used for data partitioned VOPs */
421 PutBitContext pb2; /* used for data partitioned VOPs */
422 #define PB_BUFFER_SIZE 1024*256
423 uint8_t *tex_pb_buffer;
426 #define CO_LOCATED_TYPE_4MV 1
427 #define CO_LOCATED_TYPE_FIELDMV 2
428 INT8 *co_located_type_table; /* 4mv & field_mv info for next b frame */
429 INT16 (*field_mv_table)[2][2]; /* used for interlaced b frame decoding */
430 INT8 (*field_select_table)[2]; /* wtf, no really another table for interlaced b frames */
431 int t_frame; /* time distance of first I -> B, used for interlaced b frames */
432 int padding_bug_score; /* used to detect the VERY common padding bug in MPEG4 */
434 /* divx specific, used to workaround (many) bugs in divx5 */
437 #define BITSTREAM_BUFFER_SIZE 1024*256
438 UINT8 *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
439 int bitstream_buffer_size;
443 /* lavc specific stuff, used to workaround bugs in libavcodec */
448 int rv10_version; /* RV10 version: 0 or 3 */
449 int rv10_first_dc_coded[3];
452 struct MJpegContext *mjpeg_ctx;
453 int mjpeg_vsample[3]; /* vertical sampling factors, default = {2, 1, 1} */
454 int mjpeg_hsample[3]; /* horizontal sampling factors, default = {2, 1, 1} */
455 int mjpeg_write_tables; /* do we want to have quantisation- and
456 huffmantables in the jpeg file ? */
457 int mjpeg_data_only_frames; /* frames only with SOI, SOS and EOI markers */
459 /* MSMPEG4 specific */
462 int rl_chroma_table_index;
464 int use_skip_mb_code;
465 int slice_height; /* in macroblocks */
466 int first_slice_line; /* used in mpeg4 too to handle resync markers */
467 int flipflop_rounding;
468 int msmpeg4_version; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8*/
470 int esc3_level_length;
472 /* [mb_intra][isChroma][level][run][last] */
473 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
474 int inter_intra_pred;
476 /* decompression specific */
479 /* MPEG2 specific - I wish I had not to support this mess. */
480 int progressive_sequence;
481 int mpeg_f_code[2][2];
482 int picture_structure;
484 #define PICT_TOP_FIELD 1
485 #define PICT_BOTTOM_FIELD 2
488 int intra_dc_precision;
489 int frame_pred_frame_dct;
491 int concealment_motion_vectors;
493 int intra_vlc_format;
495 int repeat_first_field;
497 int progressive_frame;
505 /* These are explained on avcodec.h */
507 int rtp_payload_size;
508 void (*rtp_callback)(void *data, int size, int packet_number);
510 UINT8 *ptr_last_mb_line;
511 UINT32 mb_line_avgsize;
513 DCTELEM (*block)[64]; /* points to one of the following blocks */
514 DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block
515 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
517 #define SLICE_ERROR -1
518 #define SLICE_END -2 //end marker found
519 #define SLICE_NOEND -3 //no end marker or error found but mb count exceeded
521 void (*dct_unquantize_mpeg1)(struct MpegEncContext *s,
522 DCTELEM *block, int n, int qscale);
523 void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
524 DCTELEM *block, int n, int qscale);
525 void (*dct_unquantize_h263)(struct MpegEncContext *s,
526 DCTELEM *block, int n, int qscale);
527 void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
528 DCTELEM *block, int n, int qscale);
529 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
530 void (*fdct)(DCTELEM *block/* align 16*/);
531 void (*idct_put)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
532 void (*idct_add)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
536 int DCT_common_init(MpegEncContext *s);
537 int MPV_common_init(MpegEncContext *s);
538 void MPV_common_end(MpegEncContext *s);
539 void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
540 int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
541 void MPV_frame_end(MpegEncContext *s);
543 void MPV_common_init_mmx(MpegEncContext *s);
546 void MPV_common_init_axp(MpegEncContext *s);
549 void MPV_common_init_mlib(MpegEncContext *s);
552 void MPV_common_init_mmi(MpegEncContext *s);
555 void MPV_common_init_armv4l(MpegEncContext *s);
558 void MPV_common_init_ppc(MpegEncContext *s);
560 extern void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w);
561 void ff_conceal_past_errors(MpegEncContext *s, int conceal_all);
562 void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length);
563 void ff_clean_intra_table_entries(MpegEncContext *s);
564 void ff_init_scantable(MpegEncContext *s, ScanTable *st, const UINT8 *src_scantable);
565 void ff_error_resilience(MpegEncContext *s);
566 void ff_draw_horiz_band(MpegEncContext *s);
568 extern int ff_bit_exact;
570 static inline void ff_init_block_index(MpegEncContext *s){
571 s->block_index[0]= s->block_wrap[0]*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
572 s->block_index[1]= s->block_wrap[0]*(s->mb_y*2 + 1) + s->mb_x*2;
573 s->block_index[2]= s->block_wrap[0]*(s->mb_y*2 + 2) - 1 + s->mb_x*2;
574 s->block_index[3]= s->block_wrap[0]*(s->mb_y*2 + 2) + s->mb_x*2;
575 s->block_index[4]= s->block_wrap[4]*(s->mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2) + s->mb_x;
576 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;
579 static inline void ff_update_block_index(MpegEncContext *s){
580 s->block_index[0]+=2;
581 s->block_index[1]+=2;
582 s->block_index[2]+=2;
583 s->block_index[3]+=2;
590 void ff_estimate_p_frame_motion(MpegEncContext * s,
592 void ff_estimate_b_frame_motion(MpegEncContext * s,
594 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
595 void ff_fix_long_p_mvs(MpegEncContext * s);
596 void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type);
600 extern const INT16 ff_mpeg1_default_intra_matrix[64];
601 extern const INT16 ff_mpeg1_default_non_intra_matrix[64];
602 extern UINT8 ff_mpeg1_dc_scale_table[128];
604 void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
605 void mpeg1_encode_mb(MpegEncContext *s,
606 DCTELEM block[6][64],
607 int motion_x, int motion_y);
608 void ff_mpeg1_encode_init(MpegEncContext *s);
612 typedef struct RLTable {
613 int n; /* number of entries of table_vlc minus 1 */
614 int last; /* number of values for last = 0 */
615 const UINT16 (*table_vlc)[2];
616 const INT8 *table_run;
617 const INT8 *table_level;
618 UINT8 *index_run[2]; /* encoding only */
619 INT8 *max_level[2]; /* encoding & decoding */
620 INT8 *max_run[2]; /* encoding & decoding */
621 VLC vlc; /* decoding only deprected FIXME remove*/
622 RL_VLC_ELEM *rl_vlc[32]; /* decoding only */
625 void init_rl(RLTable *rl);
626 void init_vlc_rl(RLTable *rl);
628 static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
631 index = rl->index_run[last][run];
634 if (level > rl->max_level[last][run])
636 return index + level - 1;
639 extern UINT8 ff_mpeg4_y_dc_scale_table[32];
640 extern UINT8 ff_mpeg4_c_dc_scale_table[32];
641 extern const INT16 ff_mpeg4_default_intra_matrix[64];
642 extern const INT16 ff_mpeg4_default_non_intra_matrix[64];
643 void h263_encode_mb(MpegEncContext *s,
644 DCTELEM block[6][64],
645 int motion_x, int motion_y);
646 void mpeg4_encode_mb(MpegEncContext *s,
647 DCTELEM block[6][64],
648 int motion_x, int motion_y);
649 void h263_encode_picture_header(MpegEncContext *s, int picture_number);
650 int h263_encode_gob_header(MpegEncContext * s, int mb_line);
651 INT16 *h263_pred_motion(MpegEncContext * s, int block,
653 void mpeg4_pred_ac(MpegEncContext * s, INT16 *block, int n,
655 void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
656 void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
657 void h263_encode_init(MpegEncContext *s);
658 void h263_decode_init_vlc(MpegEncContext *s);
659 int h263_decode_picture_header(MpegEncContext *s);
660 int ff_h263_decode_gob_header(MpegEncContext *s);
661 int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
664 int intel_h263_decode_picture_header(MpegEncContext *s);
665 int ff_h263_decode_mb(MpegEncContext *s,
666 DCTELEM block[6][64]);
667 int h263_get_picture_format(int width, int height);
668 void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
669 void ff_mpeg4_clean_buffers(MpegEncContext *s);
670 void ff_mpeg4_stuffing(PutBitContext * pbc);
671 void ff_mpeg4_init_partitions(MpegEncContext *s);
672 void ff_mpeg4_merge_partitions(MpegEncContext *s);
673 void ff_clean_mpeg4_qscales(MpegEncContext *s);
674 void ff_clean_h263_qscales(MpegEncContext *s);
675 int ff_mpeg4_decode_partitions(MpegEncContext *s);
676 int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
677 int ff_h263_resync(MpegEncContext *s);
678 int ff_h263_get_gob_height(MpegEncContext *s);
682 void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
683 int rv_decode_dc(MpegEncContext *s, int n);
687 void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
688 void msmpeg4_encode_ext_header(MpegEncContext * s);
689 void msmpeg4_encode_mb(MpegEncContext * s,
690 DCTELEM block[6][64],
691 int motion_x, int motion_y);
692 int msmpeg4_decode_picture_header(MpegEncContext * s);
693 int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
694 int ff_msmpeg4_decode_init(MpegEncContext *s);
695 void ff_msmpeg4_encode_init(MpegEncContext *s);
699 int mjpeg_init(MpegEncContext *s);
700 void mjpeg_close(MpegEncContext *s);
701 void mjpeg_encode_mb(MpegEncContext *s,
702 DCTELEM block[6][64]);
703 void mjpeg_picture_header(MpegEncContext *s);
704 void mjpeg_picture_trailer(MpegEncContext *s);
708 int ff_rate_control_init(MpegEncContext *s);
709 float ff_rate_estimate_qscale(MpegEncContext *s);
710 void ff_write_pass1_stats(MpegEncContext *s);
711 void ff_rate_control_uninit(MpegEncContext *s);
712 double ff_eval(char *s, double *const_value, char **const_name,
713 double (**func1)(void *, double), char **func1_name,
714 double (**func2)(void *, double, double), char **func2_name,
718 #endif /* AVCODEC_MPEGVIDEO_H */