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_bits; /* bits outputted by the pass1 code (including complexity init) */
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 MpegEncContext {
103 struct AVCodecContext *avctx;
104 /* the following parameters must be initialized before encoding */
105 int width, height; /* picture size. must be a multiple of 16 */
107 int frame_rate; /* number of frames per second */
108 int intra_only; /* if true, only intra pictures are generated */
109 int bit_rate; /* wanted bit rate */
110 int bit_rate_tolerance; /* amount of +- bits (>0)*/
111 enum OutputFormat out_format; /* output format */
112 int h263_pred; /* use mpeg4/h263 ac/dc predictions */
114 /* the following codec id fields are deprecated in favor of codec_id */
115 int h263_plus; /* h263 plus headers */
116 int h263_rv10; /* use RV10 variation for H263 */
117 int h263_msmpeg4; /* generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)*/
118 int h263_intel; /* use I263 intel h263 header */
120 int codec_id; /* see CODEC_ID_xxx */
121 int fixed_qscale; /* fixed qscale if non zero */
122 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0) */
123 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
124 int qmin; /* min qscale */
125 int qmax; /* max qscale */
126 int max_qdiff; /* max qscale difference between frames */
127 int encoding; /* true if we are encoding (vs decoding) */
128 int flags; /* AVCodecContext.flags (HQ, MV4, ...) */
129 int force_input_type;/* 0= no force, otherwise I_TYPE, P_TYPE, ... */
130 int max_b_frames; /* max number of b-frames for encoding */
131 int b_frame_strategy;
132 int luma_elim_threshold;
133 int chroma_elim_threshold;
134 int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
135 int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
136 /* the following fields are managed internally by the encoder */
141 /* sequence parameters */
142 int context_initialized;
143 int input_picture_number;
144 int input_picture_in_gop_number; /* 0-> first pic in gop, ... */
146 int fake_picture_number; /* picture number at the bitstream frame rate */
147 int gop_picture_number; /* index of the first picture of a GOP based on fake_pic_num & mpeg1 specific */
148 int picture_in_gop_number; /* 0-> first pic in gop, ... */
149 int b_frames_since_non_b; /* used for encoding, relative to not yet reordered input */
150 int mb_width, mb_height; /* number of MBs horizontally & vertically */
151 int h_edge_pos, v_edge_pos;/* horizontal / vertical position of the right/bottom edge (pixel replicateion)*/
152 int mb_num; /* number of MBs of a picture */
153 int linesize; /* line size, in bytes, may be different from width */
154 int uvlinesize; /* line size, for chroma in bytes, may be different from width */
155 UINT8 *new_picture[3]; /* picture to be compressed */
156 UINT8 *picture_buffer[REORDER_BUFFER_SIZE][3]; /* internal buffers used for reordering of input pictures */
157 int picture_buffer_index;
158 ReorderBuffer coded_order[REORDER_BUFFER_SIZE];
159 UINT8 *last_picture[3]; /* previous picture */
160 UINT8 *last_picture_base[3]; /* real start of the picture */
161 UINT8 *next_picture[3]; /* previous picture (for bidir pred) */
162 UINT8 *next_picture_base[3]; /* real start of the picture */
163 UINT8 *aux_picture[3]; /* aux picture (for B frames only) */
164 UINT8 *aux_picture_base[3]; /* real start of the picture */
165 UINT8 *current_picture[3]; /* buffer to store the decompressed current picture */
166 void *last_dr_opaque;
167 void *next_dr_opaque;
168 int ip_buffer_count; /* number of buffers, currently only >2 if dr1 is used */
169 int num_available_buffers; /* is 0 at the start & after seeking, after the first I frame its 1 after next I/P 2 */
170 int last_dc[3]; /* last DC values for MPEG1 */
171 INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
172 int y_dc_scale, c_dc_scale;
173 UINT8 *y_dc_scale_table; /* qscale -> y_dc_scale table */
174 UINT8 *c_dc_scale_table; /* qscale -> c_dc_scale table */
175 UINT8 *coded_block; /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/
176 INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
178 int mb_skiped; /* MUST BE SET only during DECODING */
179 UINT8 *mbskip_table; /* used to avoid copy if macroblock skipped (for black regions for example)
180 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
181 UINT8 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */
182 UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */
183 UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */
184 INT8 *qscale_table; /* used to store qscale for partitioned decoding (& postprocessing FIXME export) */
185 UINT8 *edge_emu_buffer;
187 int input_qscale; /* qscale prior to reordering of frames */
188 int input_pict_type; /* pict_type prior to reordering of frames */
189 int force_type; /* 0= no force, otherwise I_TYPE, P_TYPE, ... */
191 float frame_qscale; /* qscale from the frame level rc */
192 int adaptive_quant; /* use adaptive quantization */
193 int dquant; /* qscale difference to prev qscale */
194 int pict_type; /* I_TYPE, P_TYPE, B_TYPE, ... */
196 int last_non_b_pict_type; /* used for mpeg4 gmc b-frames & ratecontrol */
197 int frame_rate_index;
198 /* motion compensation */
200 int h263_long_vectors; /* use horrible h263v1 long vector mode */
202 int f_code; /* forward MV resolution */
203 int b_code; /* backward MV resolution for B Frames (mpeg4) */
204 INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */
205 INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
206 INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */
207 INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */
208 INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
209 INT16 (*b_bidir_back_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
210 INT16 (*b_direct_forw_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */
211 INT16 (*b_direct_back_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */
212 INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */
213 int me_method; /* ME algorithm */
214 uint8_t *me_scratchpad; /* data area for the me algo, so that the ME doesnt need to malloc/free */
215 uint32_t *me_map; /* map to avoid duplicate evaluations */
216 uint16_t *me_score_map; /* map to store the SADs */
217 int me_map_generation;
218 int skip_me; /* set if ME is skiped for the current MB */
219 int scene_change_score;
221 #define MV_DIR_BACKWARD 1
222 #define MV_DIR_FORWARD 2
223 #define MV_DIRECT 4 // bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
225 #define MV_TYPE_16X16 0 /* 1 vector for the whole mb */
226 #define MV_TYPE_8X8 1 /* 4 vectors (h263, mpeg4 4MV) */
227 #define MV_TYPE_16X8 2 /* 2 vectors, one per 16x8 block */
228 #define MV_TYPE_FIELD 3 /* 2 vectors, one per field */
229 #define MV_TYPE_DMV 4 /* 2 vectors, special mpeg2 Dual Prime Vectors */
230 /* motion vectors for a macroblock
231 first coordinate : 0 = forward 1 = backward
232 second " : depend on type
233 third " : 0 = x, 1 = y
236 int field_select[2][2];
237 int last_mv[2][2][2]; /* last MV, used for MV prediction in MPEG1 & B-frame MPEG4 */
238 UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV, used for ME */
239 UINT8 *fcode_tab; /* smallest fcode needed for each MV */
242 int no_rounding; /* apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
243 for b-frames rounding mode is allways 0 */
245 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
246 when set to 2 idct/dequant will be skipped too */
248 /* macroblock layer */
252 UINT16 *mb_var; /* Table for MB variances */
253 UINT16 *mc_mb_var; /* Table for motion compensated MB variances */
254 UINT8 *mb_mean; /* Table for MB luminance */
255 UINT8 *mb_type; /* Table for MB type */
256 #define MB_TYPE_INTRA 0x01
257 #define MB_TYPE_INTER 0x02
258 #define MB_TYPE_INTER4V 0x04
259 #define MB_TYPE_SKIPED 0x08
260 #define MB_TYPE_GMC 0x10
262 #define MB_TYPE_DIRECT 0x10
263 #define MB_TYPE_FORWARD 0x20
264 #define MB_TYPE_BACKWARD 0x40
265 #define MB_TYPE_BIDIR 0x80
267 int block_index[6]; /* index to current MB in block based arrays with edges*/
270 /* matrix transmitted in the bitstream */
271 UINT16 intra_matrix[64];
272 UINT16 chroma_intra_matrix[64];
273 UINT16 inter_matrix[64];
274 UINT16 chroma_inter_matrix[64];
275 #define QUANT_BIAS_SHIFT 4
276 int intra_quant_bias; /* bias for the quantizer */
277 int inter_quant_bias; /* bias for the quantizer */
278 int min_qcoeff; /* minimum encodable coefficient */
279 int max_qcoeff; /* maximum encodable coefficient */
280 /* precomputed matrix (combine qscale and DCT renorm) */
281 int q_intra_matrix[32][64];
282 int q_inter_matrix[32][64];
283 /* identical to the above but for MMX & these are not permutated */
284 UINT16 __align8 q_intra_matrix16[32][64];
285 UINT16 __align8 q_inter_matrix16[32][64];
286 UINT16 __align8 q_intra_matrix16_bias[32][64];
287 UINT16 __align8 q_inter_matrix16_bias[32][64];
288 int block_last_index[6]; /* last non zero coefficient in block */
290 void *opaque; /* private data for the user */
292 /* bit rate control */
293 int I_frame_bits; //FIXME used in mpeg12 ...
294 int mb_var_sum; /* sum of MB variance for current frame */
295 int mc_mb_var_sum; /* motion compensated MB variance for current frame */
298 int frame_bits; /* bits used for the current frame */
299 RateControlContext rc_context; // contains stuff only accessed in ratecontrol.c
301 /* statistics, used for 2-pass encoding */
310 int misc_bits; // cbp, mb_type
311 int last_bits; //temp var used for calculating the above vars
313 /* error concealment / resync */
314 int resync_mb_x; /* x position of last resync marker */
315 int resync_mb_y; /* y position of last resync marker */
316 int mb_num_left; /* number of MBs left in this video packet */
317 GetBitContext next_resync_gb; /* starts at the next resync marker */
318 int next_resync_qscale; /* qscale of next resync marker */
319 int next_resync_pos; /* bitstream position of next resync marker */
320 #define DECODING_AC_LOST -1
321 #define DECODING_ACDC_LOST -2
322 #define DECODING_DESYNC -3
324 int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */
325 int error_resilience;
331 /* H.263+ specific */
334 int h263_aic; /* Advanded INTRA Coding (AIC) */
335 int h263_aic_dir; /* AIC direction: 0 = left, 1 = top */
338 int time_increment_resolution;
339 int time_increment_bits; /* number of bits to represent the fractional part of time */
341 int time_base; /* time in seconds of last I,P,S Frame */
342 INT64 time; /* time of current frame */
343 INT64 last_non_b_time;
344 UINT16 pp_time; /* time distance between the last 2 p,s,i frames */
345 UINT16 pb_time; /* time distance between the last b and p,s,i frame */
346 UINT16 pp_field_time;
347 UINT16 pb_field_time; /* like above, just for interlaced */
349 int vol_sprite_usage;
354 int sprite_brightness_change;
355 int num_sprite_warping_points;
356 int real_sprite_warping_points;
357 int sprite_offset[2][2];
358 int sprite_delta[2][2][2];
359 int sprite_shift[2][2];
362 int quarter_sample; /* 1->qpel, 0->half pel ME/MC */
365 int enhancement_type;
368 int aspect_ratio_info;
371 int sprite_warping_accuracy;
372 int low_latency_sprite;
373 int data_partitioning;
374 int rvlc; /* reversible vlc */
375 int resync_marker; /* could this stream contain resync markers*/
376 int low_delay; /* no reordering needed / has no b-frames */
378 int vol_control_parameters; /* does the stream contain the low_delay flag, used to workaround buggy encoders */
379 PutBitContext tex_pb; /* used for data partitioned VOPs */
380 PutBitContext pb2; /* used for data partitioned VOPs */
381 #define PB_BUFFER_SIZE 1024*256
382 uint8_t *tex_pb_buffer;
385 #define CO_LOCATED_TYPE_4MV 1
386 #define CO_LOCATED_TYPE_FIELDMV 2
387 INT8 *co_located_type_table; /* 4mv & field_mv info for next b frame */
388 INT16 (*field_mv_table)[2][2]; /* used for interlaced b frame decoding */
389 INT8 (*field_select_table)[2]; /* wtf, no really another table for interlaced b frames */
390 int t_frame; /* time distance of first I -> B, used for interlaced b frames */
392 /* divx specific, used to workaround (many) bugs in divx5 */
395 #define BITSTREAM_BUFFER_SIZE 1024*256
396 UINT8 *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
397 int bitstream_buffer_size;
400 int rv10_version; /* RV10 version: 0 or 3 */
401 int rv10_first_dc_coded[3];
404 struct MJpegContext *mjpeg_ctx;
405 int mjpeg_vsample[3]; /* vertical sampling factors, default = {2, 1, 1} */
406 int mjpeg_hsample[3]; /* horizontal sampling factors, default = {2, 1, 1} */
407 int mjpeg_write_tables; /* do we want to have quantisation- and
408 huffmantables in the jpeg file ? */
409 int mjpeg_data_only_frames; /* frames only with SOI, SOS and EOI markers */
411 /* MSMPEG4 specific */
414 int rl_chroma_table_index;
416 int use_skip_mb_code;
417 int slice_height; /* in macroblocks */
418 int first_slice_line; /* used in mpeg4 too to handle resync markers */
419 int flipflop_rounding;
420 int msmpeg4_version; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8*/
422 int esc3_level_length;
424 UINT8 *inter_scantable;
425 UINT8 *intra_scantable;
426 UINT8 *intra_v_scantable;
427 UINT8 *intra_h_scantable;
428 /* [mb_intra][isChroma][level][run][last] */
429 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
430 int inter_intra_pred;
432 /* decompression specific */
435 /* MPEG2 specific - I wish I had not to support this mess. */
436 int progressive_sequence;
437 int mpeg_f_code[2][2];
438 int picture_structure;
440 #define PICT_TOP_FIELD 1
441 #define PICT_BOTTOM_FIELD 2
444 int intra_dc_precision;
445 int frame_pred_frame_dct;
447 int concealment_motion_vectors;
449 int intra_vlc_format;
451 int repeat_first_field;
453 int progressive_frame;
461 /* These are explained on avcodec.h */
463 int rtp_payload_size;
464 void (*rtp_callback)(void *data, int size, int packet_number);
466 UINT8 *ptr_last_mb_line;
467 UINT32 mb_line_avgsize;
469 DCTELEM (*block)[64]; /* points to one of the following blocks */
470 DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block
471 void (*dct_unquantize_mpeg1)(struct MpegEncContext *s,
472 DCTELEM *block, int n, int qscale);
473 void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
474 DCTELEM *block, int n, int qscale);
475 void (*dct_unquantize_h263)(struct MpegEncContext *s,
476 DCTELEM *block, int n, int qscale);
477 void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
478 DCTELEM *block, int n, int qscale);
479 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
480 void (*fdct)(DCTELEM *block);
483 int MPV_common_init(MpegEncContext *s);
484 void MPV_common_end(MpegEncContext *s);
485 void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
486 void MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
487 void MPV_frame_end(MpegEncContext *s);
489 void MPV_common_init_mmx(MpegEncContext *s);
492 void MPV_common_init_axp(MpegEncContext *s);
495 void MPV_common_init_mlib(MpegEncContext *s);
497 extern void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w);
498 void ff_conceal_past_errors(MpegEncContext *s, int conceal_all);
499 void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length);
500 void ff_clean_intra_table_entries(MpegEncContext *s);
502 extern int ff_bit_exact;
505 void ff_estimate_p_frame_motion(MpegEncContext * s,
507 void ff_estimate_b_frame_motion(MpegEncContext * s,
509 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
510 void ff_fix_long_p_mvs(MpegEncContext * s);
511 void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type);
514 extern INT16 ff_mpeg1_default_intra_matrix[64];
515 extern INT16 ff_mpeg1_default_non_intra_matrix[64];
516 extern UINT8 ff_mpeg1_dc_scale_table[128];
518 void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
519 void mpeg1_encode_mb(MpegEncContext *s,
520 DCTELEM block[6][64],
521 int motion_x, int motion_y);
522 void ff_mpeg1_encode_init(MpegEncContext *s);
525 typedef struct RLTable {
526 int n; /* number of entries of table_vlc minus 1 */
527 int last; /* number of values for last = 0 */
528 const UINT16 (*table_vlc)[2];
529 const INT8 *table_run;
530 const INT8 *table_level;
531 UINT8 *index_run[2]; /* encoding only */
532 INT8 *max_level[2]; /* encoding & decoding */
533 INT8 *max_run[2]; /* encoding & decoding */
534 VLC vlc; /* decoding only deprected FIXME remove*/
535 RL_VLC_ELEM *rl_vlc[32]; /* decoding only */
538 void init_rl(RLTable *rl);
539 void init_vlc_rl(RLTable *rl);
541 static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
544 index = rl->index_run[last][run];
547 if (level > rl->max_level[last][run])
549 return index + level - 1;
552 extern UINT8 ff_mpeg4_y_dc_scale_table[32];
553 extern UINT8 ff_mpeg4_c_dc_scale_table[32];
554 extern INT16 ff_mpeg4_default_intra_matrix[64];
555 extern INT16 ff_mpeg4_default_non_intra_matrix[64];
557 void h263_encode_mb(MpegEncContext *s,
558 DCTELEM block[6][64],
559 int motion_x, int motion_y);
560 void mpeg4_encode_mb(MpegEncContext *s,
561 DCTELEM block[6][64],
562 int motion_x, int motion_y);
563 void h263_encode_picture_header(MpegEncContext *s, int picture_number);
564 int h263_encode_gob_header(MpegEncContext * s, int mb_line);
565 INT16 *h263_pred_motion(MpegEncContext * s, int block,
567 void mpeg4_pred_ac(MpegEncContext * s, INT16 *block, int n,
569 void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
570 void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
571 void h263_encode_init(MpegEncContext *s);
573 void h263_decode_init_vlc(MpegEncContext *s);
574 int h263_decode_picture_header(MpegEncContext *s);
575 int h263_decode_gob_header(MpegEncContext *s);
576 int mpeg4_decode_picture_header(MpegEncContext * s);
577 int intel_h263_decode_picture_header(MpegEncContext *s);
578 int h263_decode_mb(MpegEncContext *s,
579 DCTELEM block[6][64]);
580 int h263_get_picture_format(int width, int height);
581 int ff_mpeg4_decode_video_packet_header(MpegEncContext *s);
582 int ff_mpeg4_resync(MpegEncContext *s);
583 void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
584 void ff_mpeg4_clean_buffers(MpegEncContext *s);
585 void ff_mpeg4_stuffing(PutBitContext * pbc);
586 void ff_mpeg4_init_partitions(MpegEncContext *s);
587 void ff_mpeg4_merge_partitions(MpegEncContext *s);
588 extern inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, UINT16 **dc_val_ptr, int *dir_ptr);
589 void ff_clean_mpeg4_qscales(MpegEncContext *s);
592 void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
593 int rv_decode_dc(MpegEncContext *s, int n);
596 void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
597 void msmpeg4_encode_ext_header(MpegEncContext * s);
598 void msmpeg4_encode_mb(MpegEncContext * s,
599 DCTELEM block[6][64],
600 int motion_x, int motion_y);
601 int msmpeg4_decode_picture_header(MpegEncContext * s);
602 int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
603 int msmpeg4_decode_mb(MpegEncContext *s,
604 DCTELEM block[6][64]);
605 int ff_msmpeg4_decode_init(MpegEncContext *s);
606 void ff_msmpeg4_encode_init(MpegEncContext *s);
610 int mjpeg_init(MpegEncContext *s);
611 void mjpeg_close(MpegEncContext *s);
612 void mjpeg_encode_mb(MpegEncContext *s,
613 DCTELEM block[6][64]);
614 void mjpeg_picture_header(MpegEncContext *s);
615 void mjpeg_picture_trailer(MpegEncContext *s);
618 int ff_rate_control_init(MpegEncContext *s);
619 float ff_rate_estimate_qscale(MpegEncContext *s);
620 void ff_write_pass1_stats(MpegEncContext *s);
621 void ff_rate_control_uninit(MpegEncContext *s);
622 double ff_eval(char *s, double *const_value, char **const_name,
623 double (**func1)(void *, double), char **func1_name,
624 double (**func2)(void *, double, double), char **func2_name,
628 #endif /* AVCODEC_MPEGVIDEO_H */