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
33 #define MPEG_BUF_SIZE (16 * 1024)
35 #define QMAT_SHIFT_MMX 16
41 #define MAX_PICTURE_COUNT 15
43 #define ME_MAP_SIZE 64
44 #define ME_MAP_SHIFT 3
45 #define ME_MAP_MV_BITS 11
47 /* run length table */
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
56 typedef struct Predictor{
62 typedef struct RateControlEntry{
79 typedef struct RateControlContext{
81 int num_entries; /* number of RateControlEntries */
82 RateControlEntry *entry;
83 int buffer_index; /* amount of bits in the video/audio buffer */
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) */
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;
95 UINT64 mv_bits_sum[5];
98 int last_non_b_pict_type;
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 Picture{
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; /* */
123 typedef struct ParseContext{
129 int frame_start_found;
132 struct MpegEncContext;
134 typedef struct MotionEstContext{
135 int skip; /* set if ME is skiped for the current MB */
136 int co_located_mv[4][2]; /* mv from last p frame for direct mode ME */
137 int direct_basis_mv[4][2];
138 uint8_t *scratchpad; /* data area for the me algo, so that the ME doesnt need to malloc/free */
139 uint32_t *map; /* map to avoid duplicate evaluations */
140 uint32_t *score_map; /* map to store the scores */
143 int sub_penalty_factor;
144 int pre_pass; /* = 1 for the pre pass */
145 UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV */
146 int (*sub_motion_search)(struct MpegEncContext * s,
147 int *mx_ptr, int *my_ptr, int dmin,
148 int xmin, int ymin, int xmax, int ymax,
149 int pred_x, int pred_y, Picture *ref_picture,
150 int n, int size, uint16_t * const mv_penalty);
151 int (*motion_search[7])(struct MpegEncContext * s, int block,
152 int *mx_ptr, int *my_ptr,
153 int P[10][2], int pred_x, int pred_y,
154 int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2],
155 int ref_mv_scale, uint16_t * const mv_penalty);
158 typedef struct MpegEncContext {
159 struct AVCodecContext *avctx;
160 /* the following parameters must be initialized before encoding */
161 int width, height; /* picture size. must be a multiple of 16 */
163 int frame_rate; /* number of frames per second */
164 int intra_only; /* if true, only intra pictures are generated */
165 int bit_rate; /* wanted bit rate */
166 int bit_rate_tolerance; /* amount of +- bits (>0)*/
167 enum OutputFormat out_format; /* output format */
168 int h263_pred; /* use mpeg4/h263 ac/dc predictions */
170 /* the following codec id fields are deprecated in favor of codec_id */
171 int h263_plus; /* h263 plus headers */
172 int h263_rv10; /* use RV10 variation for H263 */
173 int h263_msmpeg4; /* generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)*/
174 int h263_intel; /* use I263 intel h263 header */
176 int codec_id; /* see CODEC_ID_xxx */
177 int fixed_qscale; /* fixed qscale if non zero */
178 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0) */
179 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
180 int qmin; /* min qscale */
181 int qmax; /* max qscale */
182 int max_qdiff; /* max qscale difference between frames */
183 int encoding; /* true if we are encoding (vs decoding) */
184 int flags; /* AVCodecContext.flags (HQ, MV4, ...) */
185 int max_b_frames; /* max number of b-frames for encoding */
186 int b_frame_strategy;
187 int luma_elim_threshold;
188 int chroma_elim_threshold;
189 int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
190 int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
191 /* the following fields are managed internally by the encoder */
196 /* sequence parameters */
197 int context_initialized;
198 int input_picture_number;
200 int picture_in_gop_number; /* 0-> first pic in gop, ... */
201 int b_frames_since_non_b; /* used for encoding, relative to not yet reordered input */
202 int mb_width, mb_height; /* number of MBs horizontally & vertically */
203 int h_edge_pos, v_edge_pos;/* horizontal / vertical position of the right/bottom edge (pixel replicateion)*/
204 int mb_num; /* number of MBs of a picture */
205 int linesize; /* line size, in bytes, may be different from width */
206 int uvlinesize; /* line size, for chroma in bytes, may be different from width */
207 Picture picture[MAX_PICTURE_COUNT]; /* main picture buffer */
208 Picture *input_picture[MAX_PICTURE_COUNT]; /* next pictures on display order for encoding*/
209 Picture *reordered_input_picture[MAX_PICTURE_COUNT]; /* pointer to the next pictures in codedorder for encoding*/
210 Picture last_picture; /* previous picture */
211 Picture next_picture; /* previous picture (for bidir pred) */
212 Picture new_picture; /* source picture for encoding */
213 Picture current_picture; /* buffer to store the decompressed current picture */
214 int last_dc[3]; /* last DC values for MPEG1 */
215 INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
216 int y_dc_scale, c_dc_scale;
217 UINT8 *y_dc_scale_table; /* qscale -> y_dc_scale table */
218 UINT8 *c_dc_scale_table; /* qscale -> c_dc_scale table */
219 UINT8 *coded_block; /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/
220 INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
222 int mb_skiped; /* MUST BE SET only during DECODING */
223 UINT8 *mbskip_table; /* used to avoid copy if macroblock skipped (for black regions for example)
224 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
225 UINT8 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */
226 UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */
227 UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */
228 UINT8 *edge_emu_buffer;
231 float frame_qscale; /* qscale from the frame level rc FIXME remove*/
232 int adaptive_quant; /* use adaptive quantization */
233 int dquant; /* qscale difference to prev qscale */
234 int pict_type; /* I_TYPE, P_TYPE, B_TYPE, ... */
236 int last_non_b_pict_type; /* used for mpeg4 gmc b-frames & ratecontrol */
237 int frame_rate_index;
238 /* motion compensation */
240 int h263_long_vectors; /* use horrible h263v1 long vector mode */
242 DSPContext dsp; /* pointers for accelerated dsp fucntions */
243 int f_code; /* forward MV resolution */
244 int b_code; /* backward MV resolution for B Frames (mpeg4) */
245 INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */
246 INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
247 INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */
248 INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */
249 INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
250 INT16 (*b_bidir_back_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
251 INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */
252 int me_method; /* ME algorithm */
253 int scene_change_score;
255 #define MV_DIR_BACKWARD 1
256 #define MV_DIR_FORWARD 2
257 #define MV_DIRECT 4 // bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
259 #define MV_TYPE_16X16 0 /* 1 vector for the whole mb */
260 #define MV_TYPE_8X8 1 /* 4 vectors (h263, mpeg4 4MV) */
261 #define MV_TYPE_16X8 2 /* 2 vectors, one per 16x8 block */
262 #define MV_TYPE_FIELD 3 /* 2 vectors, one per field */
263 #define MV_TYPE_DMV 4 /* 2 vectors, special mpeg2 Dual Prime Vectors */
264 /* motion vectors for a macroblock
265 first coordinate : 0 = forward 1 = backward
266 second " : depend on type
267 third " : 0 = x, 1 = y
270 int field_select[2][2];
271 int last_mv[2][2][2]; /* last MV, used for MV prediction in MPEG1 & B-frame MPEG4 */
272 UINT8 *fcode_tab; /* smallest fcode needed for each MV */
276 int no_rounding; /* apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
277 for b-frames rounding mode is allways 0 */
279 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
280 when set to 2 idct/dequant will be skipped too */
282 /* macroblock layer */
286 UINT8 *mb_type; /* Table for MB type */
287 #define MB_TYPE_INTRA 0x01
288 #define MB_TYPE_INTER 0x02
289 #define MB_TYPE_INTER4V 0x04
290 #define MB_TYPE_SKIPED 0x08
291 #define MB_TYPE_GMC 0x10
293 #define MB_TYPE_DIRECT 0x10
294 #define MB_TYPE_FORWARD 0x20
295 #define MB_TYPE_BACKWARD 0x40
296 #define MB_TYPE_BIDIR 0x80
298 int block_index[6]; /* index to current MB in block based arrays with edges*/
301 /* matrix transmitted in the bitstream */
302 UINT16 intra_matrix[64];
303 UINT16 chroma_intra_matrix[64];
304 UINT16 inter_matrix[64];
305 UINT16 chroma_inter_matrix[64];
306 #define QUANT_BIAS_SHIFT 4
307 int intra_quant_bias; /* bias for the quantizer */
308 int inter_quant_bias; /* bias for the quantizer */
309 int min_qcoeff; /* minimum encodable coefficient */
310 int max_qcoeff; /* maximum encodable coefficient */
311 int ac_esc_length; /* num of bits needed to encode the longest esc */
312 uint8_t *intra_ac_vlc_length;
313 uint8_t *intra_ac_vlc_last_length;
314 uint8_t *inter_ac_vlc_length;
315 uint8_t *inter_ac_vlc_last_length;
316 #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
318 /* precomputed matrix (combine qscale and DCT renorm) */
319 int __align8 q_intra_matrix[32][64];
320 int __align8 q_inter_matrix[32][64];
321 /* identical to the above but for MMX & these are not permutated */
322 UINT16 __align8 q_intra_matrix16[32][64];
323 UINT16 __align8 q_inter_matrix16[32][64];
324 UINT16 __align8 q_intra_matrix16_bias[32][64];
325 UINT16 __align8 q_inter_matrix16_bias[32][64];
326 int block_last_index[6]; /* last non zero coefficient in block */
328 ScanTable __align8 intra_scantable;
329 ScanTable intra_h_scantable;
330 ScanTable intra_v_scantable;
331 ScanTable inter_scantable; // if inter == intra then intra should be used to reduce tha cache usage
332 UINT8 idct_permutation[64];
333 int idct_permutation_type;
334 #define FF_NO_IDCT_PERM 1
335 #define FF_LIBMPEG2_IDCT_PERM 2
336 #define FF_SIMPLE_IDCT_PERM 3
337 #define FF_TRANSPOSE_IDCT_PERM 4
339 void *opaque; /* private data for the user */
341 /* bit rate control */
342 int I_frame_bits; //FIXME used in mpeg12 ...
345 int frame_bits; /* bits used for the current frame */
346 RateControlContext rc_context; // contains stuff only accessed in ratecontrol.c
348 /* statistics, used for 2-pass encoding */
357 int misc_bits; // cbp, mb_type
358 int last_bits; //temp var used for calculating the above vars
360 /* error concealment / resync */
361 UINT8 *error_status_table; /* table of the error status of each MB */
362 #define VP_START 1 /* current MB is the first after a resync marker */
371 int resync_mb_x; /* x position of last resync marker */
372 int resync_mb_y; /* y position of last resync marker */
373 GetBitContext last_resync_gb; /* used to search for the next resync marker */
374 int mb_num_left; /* number of MBs left in this video packet (for partitioned Slices only)*/
375 int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */
376 int error_resilience;
378 ParseContext parse_context;
384 /* H.263+ specific */
387 int h263_aic; /* Advanded INTRA Coding (AIC) */
388 int h263_aic_dir; /* AIC direction: 0 = left, 1 = top */
391 int time_increment_resolution;
392 int time_increment_bits; /* number of bits to represent the fractional part of time */
394 int time_base; /* time in seconds of last I,P,S Frame */
395 INT64 time; /* time of current frame */
396 INT64 last_non_b_time;
397 UINT16 pp_time; /* time distance between the last 2 p,s,i frames */
398 UINT16 pb_time; /* time distance between the last b and p,s,i frame */
399 UINT16 pp_field_time;
400 UINT16 pb_field_time; /* like above, just for interlaced */
402 int vol_sprite_usage;
407 int sprite_brightness_change;
408 int num_sprite_warping_points;
409 int real_sprite_warping_points;
410 int sprite_offset[2][2]; /* sprite offset[isChroma][isMVY] */
411 int sprite_delta[2][2]; /* sprite_delta [isY][isMVY] */
412 int sprite_shift[2]; /* sprite shift [isChroma] */
415 int quarter_sample; /* 1->qpel, 0->half pel ME/MC */
418 int enhancement_type;
421 int aspect_ratio_info;
424 int sprite_warping_accuracy;
425 int low_latency_sprite;
426 int data_partitioning; /* data partitioning flag from header */
427 int partitioned_frame; /* is current frame partitioned */
428 int rvlc; /* reversible vlc */
429 int resync_marker; /* could this stream contain resync markers*/
430 int low_delay; /* no reordering needed / has no b-frames */
432 int vol_control_parameters; /* does the stream contain the low_delay flag, used to workaround buggy encoders */
433 PutBitContext tex_pb; /* used for data partitioned VOPs */
434 PutBitContext pb2; /* used for data partitioned VOPs */
435 #define PB_BUFFER_SIZE 1024*256
436 uint8_t *tex_pb_buffer;
439 #define CO_LOCATED_TYPE_4MV 1
440 #define CO_LOCATED_TYPE_FIELDMV 2
441 INT8 *co_located_type_table; /* 4mv & field_mv info for next b frame */
442 INT16 (*field_mv_table)[2][2]; /* used for interlaced b frame decoding */
443 INT8 (*field_select_table)[2]; /* wtf, no really another table for interlaced b frames */
444 int t_frame; /* time distance of first I -> B, used for interlaced b frames */
445 int padding_bug_score; /* used to detect the VERY common padding bug in MPEG4 */
446 int last_vo_picture_number; /* last picture number for which we added a VOS/VO/VOL header */
448 /* divx specific, used to workaround (many) bugs in divx5 */
451 #define BITSTREAM_BUFFER_SIZE 1024*256
452 UINT8 *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
453 int bitstream_buffer_size;
457 /* lavc specific stuff, used to workaround bugs in libavcodec */
462 int rv10_version; /* RV10 version: 0 or 3 */
463 int rv10_first_dc_coded[3];
466 struct MJpegContext *mjpeg_ctx;
467 int mjpeg_vsample[3]; /* vertical sampling factors, default = {2, 1, 1} */
468 int mjpeg_hsample[3]; /* horizontal sampling factors, default = {2, 1, 1} */
469 int mjpeg_write_tables; /* do we want to have quantisation- and
470 huffmantables in the jpeg file ? */
471 int mjpeg_data_only_frames; /* frames only with SOI, SOS and EOI markers */
473 /* MSMPEG4 specific */
476 int rl_chroma_table_index;
478 int use_skip_mb_code;
479 int slice_height; /* in macroblocks */
480 int first_slice_line; /* used in mpeg4 too to handle resync markers */
481 int flipflop_rounding;
482 int msmpeg4_version; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8*/
484 int esc3_level_length;
486 /* [mb_intra][isChroma][level][run][last] */
487 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
488 int inter_intra_pred;
491 /* decompression specific */
495 int fake_picture_number; /* picture number at the bitstream frame rate */
496 int gop_picture_number; /* index of the first picture of a GOP based on fake_pic_num & mpeg1 specific */
498 /* MPEG2 specific - I wish I had not to support this mess. */
499 int progressive_sequence;
500 int mpeg_f_code[2][2];
501 int picture_structure;
503 #define PICT_TOP_FIELD 1
504 #define PICT_BOTTOM_FIELD 2
507 int intra_dc_precision;
508 int frame_pred_frame_dct;
510 int concealment_motion_vectors;
512 int intra_vlc_format;
514 int repeat_first_field;
516 int progressive_frame;
523 /* These are explained on avcodec.h */
525 int rtp_payload_size;
526 void (*rtp_callback)(void *data, int size, int packet_number);
528 UINT8 *ptr_last_mb_line;
529 UINT32 mb_line_avgsize;
531 DCTELEM (*block)[64]; /* points to one of the following blocks */
532 DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block
533 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
535 #define SLICE_ERROR -1
536 #define SLICE_END -2 //end marker found
537 #define SLICE_NOEND -3 //no end marker or error found but mb count exceeded
539 void (*dct_unquantize_mpeg1)(struct MpegEncContext *s,
540 DCTELEM *block, int n, int qscale);
541 void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
542 DCTELEM *block, int n, int qscale);
543 void (*dct_unquantize_h263)(struct MpegEncContext *s,
544 DCTELEM *block, int n, int qscale);
545 void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
546 DCTELEM *block, int n, int qscale);
547 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
548 void (*fdct)(DCTELEM *block/* align 16*/);
549 void (*idct_put)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
550 void (*idct_add)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
551 //FIXME move above funcs into dspContext perhaps
555 int DCT_common_init(MpegEncContext *s);
556 int MPV_common_init(MpegEncContext *s);
557 void MPV_common_end(MpegEncContext *s);
558 void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
559 int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
560 void MPV_frame_end(MpegEncContext *s);
561 int MPV_encode_init(AVCodecContext *avctx);
562 int MPV_encode_end(AVCodecContext *avctx);
563 int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
565 void MPV_common_init_mmx(MpegEncContext *s);
568 void MPV_common_init_axp(MpegEncContext *s);
571 void MPV_common_init_mlib(MpegEncContext *s);
574 void MPV_common_init_mmi(MpegEncContext *s);
577 void MPV_common_init_armv4l(MpegEncContext *s);
580 void MPV_common_init_ppc(MpegEncContext *s);
582 extern void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w);
583 void ff_conceal_past_errors(MpegEncContext *s, int conceal_all);
584 void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length);
585 void ff_clean_intra_table_entries(MpegEncContext *s);
586 void ff_init_scantable(MpegEncContext *s, ScanTable *st, const UINT8 *src_scantable);
587 void ff_error_resilience(MpegEncContext *s);
588 void ff_draw_horiz_band(MpegEncContext *s);
589 void ff_emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h,
590 int src_x, int src_y, int w, int h);
591 char ff_get_pict_type_char(int pict_type);
594 extern int ff_bit_exact;
596 static inline void ff_init_block_index(MpegEncContext *s){
597 s->block_index[0]= s->block_wrap[0]*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
598 s->block_index[1]= s->block_wrap[0]*(s->mb_y*2 + 1) + s->mb_x*2;
599 s->block_index[2]= s->block_wrap[0]*(s->mb_y*2 + 2) - 1 + s->mb_x*2;
600 s->block_index[3]= s->block_wrap[0]*(s->mb_y*2 + 2) + s->mb_x*2;
601 s->block_index[4]= s->block_wrap[4]*(s->mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2) + s->mb_x;
602 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;
605 static inline void ff_update_block_index(MpegEncContext *s){
606 s->block_index[0]+=2;
607 s->block_index[1]+=2;
608 s->block_index[2]+=2;
609 s->block_index[3]+=2;
616 void ff_estimate_p_frame_motion(MpegEncContext * s,
618 void ff_estimate_b_frame_motion(MpegEncContext * s,
620 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
621 void ff_fix_long_p_mvs(MpegEncContext * s);
622 void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type);
623 void ff_init_me(MpegEncContext *s);
624 int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
628 extern const INT16 ff_mpeg1_default_intra_matrix[64];
629 extern const INT16 ff_mpeg1_default_non_intra_matrix[64];
630 extern UINT8 ff_mpeg1_dc_scale_table[128];
632 void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
633 void mpeg1_encode_mb(MpegEncContext *s,
634 DCTELEM block[6][64],
635 int motion_x, int motion_y);
636 void ff_mpeg1_encode_init(MpegEncContext *s);
640 typedef struct RLTable {
641 int n; /* number of entries of table_vlc minus 1 */
642 int last; /* number of values for last = 0 */
643 const UINT16 (*table_vlc)[2];
644 const INT8 *table_run;
645 const INT8 *table_level;
646 UINT8 *index_run[2]; /* encoding only */
647 INT8 *max_level[2]; /* encoding & decoding */
648 INT8 *max_run[2]; /* encoding & decoding */
649 VLC vlc; /* decoding only deprected FIXME remove*/
650 RL_VLC_ELEM *rl_vlc[32]; /* decoding only */
653 void init_rl(RLTable *rl);
654 void init_vlc_rl(RLTable *rl);
656 static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
659 index = rl->index_run[last][run];
662 if (level > rl->max_level[last][run])
664 return index + level - 1;
667 extern UINT8 ff_mpeg4_y_dc_scale_table[32];
668 extern UINT8 ff_mpeg4_c_dc_scale_table[32];
669 extern const INT16 ff_mpeg4_default_intra_matrix[64];
670 extern const INT16 ff_mpeg4_default_non_intra_matrix[64];
671 int ff_h263_decode_init(AVCodecContext *avctx);
672 int ff_h263_decode_frame(AVCodecContext *avctx,
673 void *data, int *data_size,
674 UINT8 *buf, int buf_size);
675 int ff_h263_decode_end(AVCodecContext *avctx);
676 void h263_encode_mb(MpegEncContext *s,
677 DCTELEM block[6][64],
678 int motion_x, int motion_y);
679 void mpeg4_encode_mb(MpegEncContext *s,
680 DCTELEM block[6][64],
681 int motion_x, int motion_y);
682 void h263_encode_picture_header(MpegEncContext *s, int picture_number);
683 int h263_encode_gob_header(MpegEncContext * s, int mb_line);
684 INT16 *h263_pred_motion(MpegEncContext * s, int block,
686 void mpeg4_pred_ac(MpegEncContext * s, INT16 *block, int n,
688 void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
689 void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
690 void h263_encode_init(MpegEncContext *s);
691 void h263_decode_init_vlc(MpegEncContext *s);
692 int h263_decode_picture_header(MpegEncContext *s);
693 int ff_h263_decode_gob_header(MpegEncContext *s);
694 int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
697 int intel_h263_decode_picture_header(MpegEncContext *s);
698 int ff_h263_decode_mb(MpegEncContext *s,
699 DCTELEM block[6][64]);
700 int h263_get_picture_format(int width, int height);
701 void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
702 void ff_mpeg4_clean_buffers(MpegEncContext *s);
703 void ff_mpeg4_stuffing(PutBitContext * pbc);
704 void ff_mpeg4_init_partitions(MpegEncContext *s);
705 void ff_mpeg4_merge_partitions(MpegEncContext *s);
706 void ff_clean_mpeg4_qscales(MpegEncContext *s);
707 void ff_clean_h263_qscales(MpegEncContext *s);
708 int ff_mpeg4_decode_partitions(MpegEncContext *s);
709 int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
710 int ff_h263_resync(MpegEncContext *s);
711 int ff_h263_get_gob_height(MpegEncContext *s);
712 void ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
716 void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
717 int rv_decode_dc(MpegEncContext *s, int n);
721 void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
722 void msmpeg4_encode_ext_header(MpegEncContext * s);
723 void msmpeg4_encode_mb(MpegEncContext * s,
724 DCTELEM block[6][64],
725 int motion_x, int motion_y);
726 int msmpeg4_decode_picture_header(MpegEncContext * s);
727 int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
728 int ff_msmpeg4_decode_init(MpegEncContext *s);
729 void ff_msmpeg4_encode_init(MpegEncContext *s);
730 int ff_wmv2_decode_picture_header(MpegEncContext * s);
731 void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
732 void ff_mspel_motion(MpegEncContext *s,
733 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
734 UINT8 **ref_picture, op_pixels_func (*pix_op)[4],
735 int motion_x, int motion_y, int h);
736 int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
737 void ff_wmv2_encode_mb(MpegEncContext * s,
738 DCTELEM block[6][64],
739 int motion_x, int motion_y);
742 int mjpeg_init(MpegEncContext *s);
743 void mjpeg_close(MpegEncContext *s);
744 void mjpeg_encode_mb(MpegEncContext *s,
745 DCTELEM block[6][64]);
746 void mjpeg_picture_header(MpegEncContext *s);
747 void mjpeg_picture_trailer(MpegEncContext *s);
751 int ff_rate_control_init(MpegEncContext *s);
752 float ff_rate_estimate_qscale(MpegEncContext *s);
753 void ff_write_pass1_stats(MpegEncContext *s);
754 void ff_rate_control_uninit(MpegEncContext *s);
755 double ff_eval(char *s, double *const_value, char **const_name,
756 double (**func1)(void *, double), char **func1_name,
757 double (**func2)(void *, double, double), char **func2_name,
761 #endif /* AVCODEC_MPEGVIDEO_H */