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 */
142 int pre_penalty_factor;
144 int sub_penalty_factor;
145 int pre_pass; /* = 1 for the pre pass */
147 UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV */
148 int (*sub_motion_search)(struct MpegEncContext * s,
149 int *mx_ptr, int *my_ptr, int dmin,
150 int xmin, int ymin, int xmax, int ymax,
151 int pred_x, int pred_y, Picture *ref_picture,
152 int n, int size, uint16_t * const mv_penalty);
153 int (*motion_search[7])(struct MpegEncContext * s, int block,
154 int *mx_ptr, int *my_ptr,
155 int P[10][2], int pred_x, int pred_y,
156 int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2],
157 int ref_mv_scale, uint16_t * const mv_penalty);
158 int (*pre_motion_search)(struct MpegEncContext * s, int block,
159 int *mx_ptr, int *my_ptr,
160 int P[10][2], int pred_x, int pred_y,
161 int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2],
162 int ref_mv_scale, uint16_t * const mv_penalty);
165 typedef struct MpegEncContext {
166 struct AVCodecContext *avctx;
167 /* the following parameters must be initialized before encoding */
168 int width, height; /* picture size. must be a multiple of 16 */
170 int frame_rate; /* number of frames per second */
171 int intra_only; /* if true, only intra pictures are generated */
172 int bit_rate; /* wanted bit rate */
173 int bit_rate_tolerance; /* amount of +- bits (>0)*/
174 enum OutputFormat out_format; /* output format */
175 int h263_pred; /* use mpeg4/h263 ac/dc predictions */
177 /* the following codec id fields are deprecated in favor of codec_id */
178 int h263_plus; /* h263 plus headers */
179 int h263_rv10; /* use RV10 variation for H263 */
180 int h263_msmpeg4; /* generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)*/
181 int h263_intel; /* use I263 intel h263 header */
183 int codec_id; /* see CODEC_ID_xxx */
184 int fixed_qscale; /* fixed qscale if non zero */
185 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0) */
186 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
187 int qmin; /* min qscale */
188 int qmax; /* max qscale */
189 int max_qdiff; /* max qscale difference between frames */
190 int encoding; /* true if we are encoding (vs decoding) */
191 int flags; /* AVCodecContext.flags (HQ, MV4, ...) */
192 int max_b_frames; /* max number of b-frames for encoding */
193 int b_frame_strategy;
194 int luma_elim_threshold;
195 int chroma_elim_threshold;
196 int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
197 int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
198 /* the following fields are managed internally by the encoder */
203 /* sequence parameters */
204 int context_initialized;
205 int input_picture_number;
207 int picture_in_gop_number; /* 0-> first pic in gop, ... */
208 int b_frames_since_non_b; /* used for encoding, relative to not yet reordered input */
209 int mb_width, mb_height; /* number of MBs horizontally & vertically */
210 int h_edge_pos, v_edge_pos;/* horizontal / vertical position of the right/bottom edge (pixel replicateion)*/
211 int mb_num; /* number of MBs of a picture */
212 int linesize; /* line size, in bytes, may be different from width */
213 int uvlinesize; /* line size, for chroma in bytes, may be different from width */
214 Picture picture[MAX_PICTURE_COUNT]; /* main picture buffer */
215 Picture *input_picture[MAX_PICTURE_COUNT]; /* next pictures on display order for encoding*/
216 Picture *reordered_input_picture[MAX_PICTURE_COUNT]; /* pointer to the next pictures in codedorder for encoding*/
217 Picture last_picture; /* previous picture */
218 Picture next_picture; /* previous picture (for bidir pred) */
219 Picture new_picture; /* source picture for encoding */
220 Picture current_picture; /* buffer to store the decompressed current picture */
221 int last_dc[3]; /* last DC values for MPEG1 */
222 INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
223 int y_dc_scale, c_dc_scale;
224 UINT8 *y_dc_scale_table; /* qscale -> y_dc_scale table */
225 UINT8 *c_dc_scale_table; /* qscale -> c_dc_scale table */
226 UINT8 *coded_block; /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/
227 INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
229 int mb_skiped; /* MUST BE SET only during DECODING */
230 UINT8 *mbskip_table; /* used to avoid copy if macroblock skipped (for black regions for example)
231 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
232 UINT8 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */
233 UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */
234 UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */
235 uint8_t *allocated_edge_emu_buffer;
236 uint8_t *edge_emu_buffer; /* points into the middle of allocated_edge_emu_buffer */
239 float frame_qscale; /* qscale from the frame level rc FIXME remove*/
240 int adaptive_quant; /* use adaptive quantization */
241 int dquant; /* qscale difference to prev qscale */
242 int pict_type; /* I_TYPE, P_TYPE, B_TYPE, ... */
244 int last_non_b_pict_type; /* used for mpeg4 gmc b-frames & ratecontrol */
245 int frame_rate_index;
246 /* motion compensation */
248 int h263_long_vectors; /* use horrible h263v1 long vector mode */
250 DSPContext dsp; /* pointers for accelerated dsp fucntions */
251 int f_code; /* forward MV resolution */
252 int b_code; /* backward MV resolution for B Frames (mpeg4) */
253 INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */
254 INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
255 INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */
256 INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */
257 INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
258 INT16 (*b_bidir_back_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
259 INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */
260 int me_method; /* ME algorithm */
261 int scene_change_score;
263 #define MV_DIR_BACKWARD 1
264 #define MV_DIR_FORWARD 2
265 #define MV_DIRECT 4 // bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
267 #define MV_TYPE_16X16 0 /* 1 vector for the whole mb */
268 #define MV_TYPE_8X8 1 /* 4 vectors (h263, mpeg4 4MV) */
269 #define MV_TYPE_16X8 2 /* 2 vectors, one per 16x8 block */
270 #define MV_TYPE_FIELD 3 /* 2 vectors, one per field */
271 #define MV_TYPE_DMV 4 /* 2 vectors, special mpeg2 Dual Prime Vectors */
272 /* motion vectors for a macroblock
273 first coordinate : 0 = forward 1 = backward
274 second " : depend on type
275 third " : 0 = x, 1 = y
278 int field_select[2][2];
279 int last_mv[2][2][2]; /* last MV, used for MV prediction in MPEG1 & B-frame MPEG4 */
280 UINT8 *fcode_tab; /* smallest fcode needed for each MV */
284 int no_rounding; /* apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
285 for b-frames rounding mode is allways 0 */
287 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
288 when set to 2 idct/dequant will be skipped too */
290 /* macroblock layer */
294 UINT8 *mb_type; /* Table for MB type */
295 #define MB_TYPE_INTRA 0x01
296 #define MB_TYPE_INTER 0x02
297 #define MB_TYPE_INTER4V 0x04
298 #define MB_TYPE_SKIPED 0x08
299 #define MB_TYPE_GMC 0x10
301 #define MB_TYPE_DIRECT 0x10
302 #define MB_TYPE_FORWARD 0x20
303 #define MB_TYPE_BACKWARD 0x40
304 #define MB_TYPE_BIDIR 0x80
306 int block_index[6]; /* index to current MB in block based arrays with edges*/
309 /* matrix transmitted in the bitstream */
310 UINT16 intra_matrix[64];
311 UINT16 chroma_intra_matrix[64];
312 UINT16 inter_matrix[64];
313 UINT16 chroma_inter_matrix[64];
314 #define QUANT_BIAS_SHIFT 4
315 int intra_quant_bias; /* bias for the quantizer */
316 int inter_quant_bias; /* bias for the quantizer */
317 int min_qcoeff; /* minimum encodable coefficient */
318 int max_qcoeff; /* maximum encodable coefficient */
319 int ac_esc_length; /* num of bits needed to encode the longest esc */
320 uint8_t *intra_ac_vlc_length;
321 uint8_t *intra_ac_vlc_last_length;
322 uint8_t *inter_ac_vlc_length;
323 uint8_t *inter_ac_vlc_last_length;
324 #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
326 /* precomputed matrix (combine qscale and DCT renorm) */
327 int __align8 q_intra_matrix[32][64];
328 int __align8 q_inter_matrix[32][64];
329 /* identical to the above but for MMX & these are not permutated */
330 UINT16 __align8 q_intra_matrix16[32][64];
331 UINT16 __align8 q_inter_matrix16[32][64];
332 UINT16 __align8 q_intra_matrix16_bias[32][64];
333 UINT16 __align8 q_inter_matrix16_bias[32][64];
334 int block_last_index[6]; /* last non zero coefficient in block */
336 ScanTable __align8 intra_scantable;
337 ScanTable intra_h_scantable;
338 ScanTable intra_v_scantable;
339 ScanTable inter_scantable; // if inter == intra then intra should be used to reduce tha cache usage
340 UINT8 idct_permutation[64];
341 int idct_permutation_type;
342 #define FF_NO_IDCT_PERM 1
343 #define FF_LIBMPEG2_IDCT_PERM 2
344 #define FF_SIMPLE_IDCT_PERM 3
345 #define FF_TRANSPOSE_IDCT_PERM 4
347 void *opaque; /* private data for the user */
349 /* bit rate control */
350 int I_frame_bits; //FIXME used in mpeg12 ...
353 int frame_bits; /* bits used for the current frame */
354 RateControlContext rc_context; // contains stuff only accessed in ratecontrol.c
356 /* statistics, used for 2-pass encoding */
365 int misc_bits; // cbp, mb_type
366 int last_bits; //temp var used for calculating the above vars
368 /* error concealment / resync */
369 UINT8 *error_status_table; /* table of the error status of each MB */
370 #define VP_START 1 /* current MB is the first after a resync marker */
379 int resync_mb_x; /* x position of last resync marker */
380 int resync_mb_y; /* y position of last resync marker */
381 GetBitContext last_resync_gb; /* used to search for the next resync marker */
382 int mb_num_left; /* number of MBs left in this video packet (for partitioned Slices only)*/
383 int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */
384 int error_resilience;
386 ParseContext parse_context;
392 /* H.263+ specific */
395 int h263_aic; /* Advanded INTRA Coding (AIC) */
396 int h263_aic_dir; /* AIC direction: 0 = left, 1 = top */
399 int time_increment_resolution;
400 int time_increment_bits; /* number of bits to represent the fractional part of time */
402 int time_base; /* time in seconds of last I,P,S Frame */
403 INT64 time; /* time of current frame */
404 INT64 last_non_b_time;
405 UINT16 pp_time; /* time distance between the last 2 p,s,i frames */
406 UINT16 pb_time; /* time distance between the last b and p,s,i frame */
407 UINT16 pp_field_time;
408 UINT16 pb_field_time; /* like above, just for interlaced */
410 int vol_sprite_usage;
415 int sprite_brightness_change;
416 int num_sprite_warping_points;
417 int real_sprite_warping_points;
418 int sprite_offset[2][2]; /* sprite offset[isChroma][isMVY] */
419 int sprite_delta[2][2]; /* sprite_delta [isY][isMVY] */
420 int sprite_shift[2]; /* sprite shift [isChroma] */
423 int quarter_sample; /* 1->qpel, 0->half pel ME/MC */
426 int enhancement_type;
429 int aspect_ratio_info;
432 int sprite_warping_accuracy;
433 int low_latency_sprite;
434 int data_partitioning; /* data partitioning flag from header */
435 int partitioned_frame; /* is current frame partitioned */
436 int rvlc; /* reversible vlc */
437 int resync_marker; /* could this stream contain resync markers*/
438 int low_delay; /* no reordering needed / has no b-frames */
440 int vol_control_parameters; /* does the stream contain the low_delay flag, used to workaround buggy encoders */
441 PutBitContext tex_pb; /* used for data partitioned VOPs */
442 PutBitContext pb2; /* used for data partitioned VOPs */
443 #define PB_BUFFER_SIZE 1024*256
444 uint8_t *tex_pb_buffer;
447 #define CO_LOCATED_TYPE_4MV 1
448 #define CO_LOCATED_TYPE_FIELDMV 2
449 INT8 *co_located_type_table; /* 4mv & field_mv info for next b frame */
450 INT16 (*field_mv_table)[2][2]; /* used for interlaced b frame decoding */
451 INT8 (*field_select_table)[2]; /* wtf, no really another table for interlaced b frames */
452 int t_frame; /* time distance of first I -> B, used for interlaced b frames */
453 int padding_bug_score; /* used to detect the VERY common padding bug in MPEG4 */
455 /* divx specific, used to workaround (many) bugs in divx5 */
458 #define BITSTREAM_BUFFER_SIZE 1024*256
459 UINT8 *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
460 int bitstream_buffer_size;
464 /* lavc specific stuff, used to workaround bugs in libavcodec */
469 int rv10_version; /* RV10 version: 0 or 3 */
470 int rv10_first_dc_coded[3];
473 struct MJpegContext *mjpeg_ctx;
474 int mjpeg_vsample[3]; /* vertical sampling factors, default = {2, 1, 1} */
475 int mjpeg_hsample[3]; /* horizontal sampling factors, default = {2, 1, 1} */
476 int mjpeg_write_tables; /* do we want to have quantisation- and
477 huffmantables in the jpeg file ? */
478 int mjpeg_data_only_frames; /* frames only with SOI, SOS and EOI markers */
480 /* MSMPEG4 specific */
483 int rl_chroma_table_index;
485 int use_skip_mb_code;
486 int slice_height; /* in macroblocks */
487 int first_slice_line; /* used in mpeg4 too to handle resync markers */
488 int flipflop_rounding;
489 int msmpeg4_version; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8*/
491 int esc3_level_length;
493 /* [mb_intra][isChroma][level][run][last] */
494 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
495 int inter_intra_pred;
498 /* decompression specific */
502 int fake_picture_number; /* picture number at the bitstream frame rate */
503 int gop_picture_number; /* index of the first picture of a GOP based on fake_pic_num & mpeg1 specific */
505 /* MPEG2 specific - I wish I had not to support this mess. */
506 int progressive_sequence;
507 int mpeg_f_code[2][2];
508 int picture_structure;
510 #define PICT_TOP_FIELD 1
511 #define PICT_BOTTOM_FIELD 2
514 int intra_dc_precision;
515 int frame_pred_frame_dct;
517 int concealment_motion_vectors;
519 int intra_vlc_format;
521 int repeat_first_field;
523 int progressive_frame;
530 /* These are explained on avcodec.h */
532 int rtp_payload_size;
533 void (*rtp_callback)(void *data, int size, int packet_number);
535 UINT8 *ptr_last_mb_line;
536 UINT32 mb_line_avgsize;
538 DCTELEM (*block)[64]; /* points to one of the following blocks */
539 DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block
540 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
542 #define SLICE_ERROR -1
543 #define SLICE_END -2 //end marker found
544 #define SLICE_NOEND -3 //no end marker or error found but mb count exceeded
546 void (*dct_unquantize_mpeg1)(struct MpegEncContext *s,
547 DCTELEM *block/*align 16*/, int n, int qscale);
548 void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
549 DCTELEM *block/*align 16*/, int n, int qscale);
550 void (*dct_unquantize_h263)(struct MpegEncContext *s,
551 DCTELEM *block/*align 16*/, int n, int qscale);
552 void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
553 DCTELEM *block/*align 16*/, int n, int qscale);
554 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
555 int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
556 void (*fdct)(DCTELEM *block/* align 16*/);
557 void (*idct_put)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
558 void (*idct_add)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
559 //FIXME move above funcs into dspContext perhaps
563 int DCT_common_init(MpegEncContext *s);
564 int MPV_common_init(MpegEncContext *s);
565 void MPV_common_end(MpegEncContext *s);
566 void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
567 int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
568 void MPV_frame_end(MpegEncContext *s);
569 int MPV_encode_init(AVCodecContext *avctx);
570 int MPV_encode_end(AVCodecContext *avctx);
571 int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
573 void MPV_common_init_mmx(MpegEncContext *s);
576 void MPV_common_init_axp(MpegEncContext *s);
579 void MPV_common_init_mlib(MpegEncContext *s);
582 void MPV_common_init_mmi(MpegEncContext *s);
585 void MPV_common_init_armv4l(MpegEncContext *s);
588 void MPV_common_init_ppc(MpegEncContext *s);
590 extern void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w);
591 void ff_conceal_past_errors(MpegEncContext *s, int conceal_all);
592 void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length);
593 void ff_clean_intra_table_entries(MpegEncContext *s);
594 void ff_init_scantable(MpegEncContext *s, ScanTable *st, const UINT8 *src_scantable);
595 void ff_error_resilience(MpegEncContext *s);
596 void ff_draw_horiz_band(MpegEncContext *s);
597 void ff_emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h,
598 int src_x, int src_y, int w, int h);
599 char ff_get_pict_type_char(int pict_type);
601 extern enum PixelFormat ff_yuv420p_list[2];
603 extern int ff_bit_exact;
605 static inline void ff_init_block_index(MpegEncContext *s){
606 s->block_index[0]= s->block_wrap[0]*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
607 s->block_index[1]= s->block_wrap[0]*(s->mb_y*2 + 1) + s->mb_x*2;
608 s->block_index[2]= s->block_wrap[0]*(s->mb_y*2 + 2) - 1 + s->mb_x*2;
609 s->block_index[3]= s->block_wrap[0]*(s->mb_y*2 + 2) + s->mb_x*2;
610 s->block_index[4]= s->block_wrap[4]*(s->mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2) + s->mb_x;
611 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;
614 static inline void ff_update_block_index(MpegEncContext *s){
615 s->block_index[0]+=2;
616 s->block_index[1]+=2;
617 s->block_index[2]+=2;
618 s->block_index[3]+=2;
625 void ff_estimate_p_frame_motion(MpegEncContext * s,
627 void ff_estimate_b_frame_motion(MpegEncContext * s,
629 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
630 void ff_fix_long_p_mvs(MpegEncContext * s);
631 void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type);
632 void ff_init_me(MpegEncContext *s);
633 int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
637 extern const INT16 ff_mpeg1_default_intra_matrix[64];
638 extern const INT16 ff_mpeg1_default_non_intra_matrix[64];
639 extern UINT8 ff_mpeg1_dc_scale_table[128];
641 void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
642 void mpeg1_encode_mb(MpegEncContext *s,
643 DCTELEM block[6][64],
644 int motion_x, int motion_y);
645 void ff_mpeg1_encode_init(MpegEncContext *s);
649 typedef struct RLTable {
650 int n; /* number of entries of table_vlc minus 1 */
651 int last; /* number of values for last = 0 */
652 const UINT16 (*table_vlc)[2];
653 const INT8 *table_run;
654 const INT8 *table_level;
655 UINT8 *index_run[2]; /* encoding only */
656 INT8 *max_level[2]; /* encoding & decoding */
657 INT8 *max_run[2]; /* encoding & decoding */
658 VLC vlc; /* decoding only deprected FIXME remove*/
659 RL_VLC_ELEM *rl_vlc[32]; /* decoding only */
662 void init_rl(RLTable *rl);
663 void init_vlc_rl(RLTable *rl);
665 static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
668 index = rl->index_run[last][run];
671 if (level > rl->max_level[last][run])
673 return index + level - 1;
676 extern UINT8 ff_mpeg4_y_dc_scale_table[32];
677 extern UINT8 ff_mpeg4_c_dc_scale_table[32];
678 extern const INT16 ff_mpeg4_default_intra_matrix[64];
679 extern const INT16 ff_mpeg4_default_non_intra_matrix[64];
680 int ff_h263_decode_init(AVCodecContext *avctx);
681 int ff_h263_decode_frame(AVCodecContext *avctx,
682 void *data, int *data_size,
683 UINT8 *buf, int buf_size);
684 int ff_h263_decode_end(AVCodecContext *avctx);
685 void h263_encode_mb(MpegEncContext *s,
686 DCTELEM block[6][64],
687 int motion_x, int motion_y);
688 void mpeg4_encode_mb(MpegEncContext *s,
689 DCTELEM block[6][64],
690 int motion_x, int motion_y);
691 void h263_encode_picture_header(MpegEncContext *s, int picture_number);
692 int h263_encode_gob_header(MpegEncContext * s, int mb_line);
693 INT16 *h263_pred_motion(MpegEncContext * s, int block,
695 void mpeg4_pred_ac(MpegEncContext * s, INT16 *block, int n,
697 void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
698 void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
699 void h263_encode_init(MpegEncContext *s);
700 void h263_decode_init_vlc(MpegEncContext *s);
701 int h263_decode_picture_header(MpegEncContext *s);
702 int ff_h263_decode_gob_header(MpegEncContext *s);
703 int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
706 int intel_h263_decode_picture_header(MpegEncContext *s);
707 int ff_h263_decode_mb(MpegEncContext *s,
708 DCTELEM block[6][64]);
709 int h263_get_picture_format(int width, int height);
710 void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
711 void ff_mpeg4_clean_buffers(MpegEncContext *s);
712 void ff_mpeg4_stuffing(PutBitContext * pbc);
713 void ff_mpeg4_init_partitions(MpegEncContext *s);
714 void ff_mpeg4_merge_partitions(MpegEncContext *s);
715 void ff_clean_mpeg4_qscales(MpegEncContext *s);
716 void ff_clean_h263_qscales(MpegEncContext *s);
717 int ff_mpeg4_decode_partitions(MpegEncContext *s);
718 int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
719 int ff_h263_resync(MpegEncContext *s);
720 int ff_h263_get_gob_height(MpegEncContext *s);
721 void ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
725 void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
726 int rv_decode_dc(MpegEncContext *s, int n);
730 void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
731 void msmpeg4_encode_ext_header(MpegEncContext * s);
732 void msmpeg4_encode_mb(MpegEncContext * s,
733 DCTELEM block[6][64],
734 int motion_x, int motion_y);
735 int msmpeg4_decode_picture_header(MpegEncContext * s);
736 int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
737 int ff_msmpeg4_decode_init(MpegEncContext *s);
738 void ff_msmpeg4_encode_init(MpegEncContext *s);
739 int ff_wmv2_decode_picture_header(MpegEncContext * s);
740 void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
741 void ff_mspel_motion(MpegEncContext *s,
742 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
743 UINT8 **ref_picture, op_pixels_func (*pix_op)[4],
744 int motion_x, int motion_y, int h);
745 int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
746 void ff_wmv2_encode_mb(MpegEncContext * s,
747 DCTELEM block[6][64],
748 int motion_x, int motion_y);
751 int mjpeg_init(MpegEncContext *s);
752 void mjpeg_close(MpegEncContext *s);
753 void mjpeg_encode_mb(MpegEncContext *s,
754 DCTELEM block[6][64]);
755 void mjpeg_picture_header(MpegEncContext *s);
756 void mjpeg_picture_trailer(MpegEncContext *s);
760 int ff_rate_control_init(MpegEncContext *s);
761 float ff_rate_estimate_qscale(MpegEncContext *s);
762 void ff_write_pass1_stats(MpegEncContext *s);
763 void ff_rate_control_uninit(MpegEncContext *s);
764 double ff_eval(char *s, double *const_value, char **const_name,
765 double (**func1)(void *, double), char **func1_name,
766 double (**func2)(void *, double, double), char **func2_name,
770 #endif /* AVCODEC_MPEGVIDEO_H */