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
25 #define FRAME_SKIPED 100 // return value for header parsers if frame is not coded
35 #define MPEG_BUF_SIZE (16 * 1024)
37 #define QMAT_SHIFT_MMX 16
43 #define MAX_PICTURE_COUNT 15
45 #define ME_MAP_SIZE 64
46 #define ME_MAP_SHIFT 3
47 #define ME_MAP_MV_BITS 11
49 /* run length table */
53 #define I_TYPE FF_I_TYPE // Intra
54 #define P_TYPE FF_P_TYPE // Predicted
55 #define B_TYPE FF_B_TYPE // Bi-dir predicted
56 #define S_TYPE FF_S_TYPE // S(GMC)-VOP MPEG4
58 typedef struct Predictor{
64 typedef struct RateControlEntry{
81 typedef struct RateControlContext{
83 int num_entries; /* number of RateControlEntries */
84 RateControlEntry *entry;
85 int buffer_index; /* amount of bits in the video/audio buffer */
87 double short_term_qsum; /* sum of recent qscales */
88 double short_term_qcount; /* count of recent qscales */
89 double pass1_rc_eq_output_sum;/* sum of the output of the rc equation, this is used for normalization */
90 double pass1_wanted_bits; /* bits which should have been outputed by the pass1 code (including complexity init) */
92 double last_qscale_for[5]; /* last qscale for a specific pict type, used for max_diff & ipb factor stuff */
93 int last_mc_mb_var_sum;
97 UINT64 mv_bits_sum[5];
100 int last_non_b_pict_type;
103 typedef struct ScanTable{
104 const UINT8 *scantable;
105 UINT8 permutated[64];
106 UINT8 raster_end[64];
108 /* Used by dct_quantise_alitvec to find last-non-zero */
109 UINT8 __align8 inverse[64];
113 typedef struct Picture{
116 int mb_var_sum; /* sum of MB variance for current frame */
117 int mc_mb_var_sum; /* motion compensated MB variance for current frame */
118 uint16_t *mb_var; /* Table for MB variances */
119 uint16_t *mc_mb_var; /* Table for motion compensated MB variances */
120 uint8_t *mb_mean; /* Table for MB luminance */
121 int32_t *mb_cmp_score; /* Table for MB cmp scores, for mb decission */
122 int b_frame_score; /* */
125 typedef struct ParseContext{
131 int frame_start_found;
134 struct MpegEncContext;
136 typedef struct MotionEstContext{
137 int skip; /* set if ME is skiped for the current MB */
138 int co_located_mv[4][2]; /* mv from last p frame for direct mode ME */
139 int direct_basis_mv[4][2];
140 uint8_t *scratchpad; /* data area for the me algo, so that the ME doesnt need to malloc/free */
141 uint32_t *map; /* map to avoid duplicate evaluations */
142 uint32_t *score_map; /* map to store the scores */
144 int pre_penalty_factor;
146 int sub_penalty_factor;
147 int mb_penalty_factor;
148 int pre_pass; /* = 1 for the pre pass */
150 UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV */
151 int (*sub_motion_search)(struct MpegEncContext * s,
152 int *mx_ptr, int *my_ptr, int dmin,
153 int xmin, int ymin, int xmax, int ymax,
154 int pred_x, int pred_y, Picture *ref_picture,
155 int n, int size, uint16_t * const mv_penalty);
156 int (*motion_search[7])(struct MpegEncContext * s, int block,
157 int *mx_ptr, int *my_ptr,
158 int P[10][2], int pred_x, int pred_y,
159 int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2],
160 int ref_mv_scale, uint16_t * const mv_penalty);
161 int (*pre_motion_search)(struct MpegEncContext * s, int block,
162 int *mx_ptr, int *my_ptr,
163 int P[10][2], int pred_x, int pred_y,
164 int xmin, int ymin, int xmax, int ymax, Picture *ref_picture, int16_t (*last_mv)[2],
165 int ref_mv_scale, uint16_t * const mv_penalty);
166 int (*get_mb_score)(struct MpegEncContext * s, int mx, int my, int pred_x, int pred_y, Picture *ref_picture,
167 uint16_t * const mv_penalty);
170 typedef struct MpegEncContext {
171 struct AVCodecContext *avctx;
172 /* the following parameters must be initialized before encoding */
173 int width, height; /* picture size. must be a multiple of 16 */
175 int frame_rate; /* number of frames per second */
176 int intra_only; /* if true, only intra pictures are generated */
177 int bit_rate; /* wanted bit rate */
178 int bit_rate_tolerance; /* amount of +- bits (>0)*/
179 enum OutputFormat out_format; /* output format */
180 int h263_pred; /* use mpeg4/h263 ac/dc predictions */
182 /* the following codec id fields are deprecated in favor of codec_id */
183 int h263_plus; /* h263 plus headers */
184 int h263_rv10; /* use RV10 variation for H263 */
185 int h263_msmpeg4; /* generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)*/
186 int h263_intel; /* use I263 intel h263 header */
188 int codec_id; /* see CODEC_ID_xxx */
189 int fixed_qscale; /* fixed qscale if non zero */
190 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0) */
191 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
192 int qmin; /* min qscale */
193 int qmax; /* max qscale */
194 int max_qdiff; /* max qscale difference between frames */
195 int encoding; /* true if we are encoding (vs decoding) */
196 int flags; /* AVCodecContext.flags (HQ, MV4, ...) */
197 int max_b_frames; /* max number of b-frames for encoding */
198 int b_frame_strategy;
199 int luma_elim_threshold;
200 int chroma_elim_threshold;
201 int strict_std_compliance; /* strictly follow the std (MPEG4, ...) */
202 int workaround_bugs; /* workaround bugs in encoders which cannot be detected automatically */
203 /* the following fields are managed internally by the encoder */
208 /* sequence parameters */
209 int context_initialized;
210 int input_picture_number;
212 int picture_in_gop_number; /* 0-> first pic in gop, ... */
213 int b_frames_since_non_b; /* used for encoding, relative to not yet reordered input */
214 int mb_width, mb_height; /* number of MBs horizontally & vertically */
215 int h_edge_pos, v_edge_pos;/* horizontal / vertical position of the right/bottom edge (pixel replicateion)*/
216 int mb_num; /* number of MBs of a picture */
217 int linesize; /* line size, in bytes, may be different from width */
218 int uvlinesize; /* line size, for chroma in bytes, may be different from width */
219 Picture picture[MAX_PICTURE_COUNT]; /* main picture buffer */
220 Picture *input_picture[MAX_PICTURE_COUNT]; /* next pictures on display order for encoding*/
221 Picture *reordered_input_picture[MAX_PICTURE_COUNT]; /* pointer to the next pictures in codedorder for encoding*/
222 Picture last_picture; /* previous picture */
223 Picture next_picture; /* previous picture (for bidir pred) */
224 Picture new_picture; /* source picture for encoding */
225 Picture current_picture; /* buffer to store the decompressed current picture */
226 int last_dc[3]; /* last DC values for MPEG1 */
227 INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
228 int y_dc_scale, c_dc_scale;
229 UINT8 *y_dc_scale_table; /* qscale -> y_dc_scale table */
230 UINT8 *c_dc_scale_table; /* qscale -> c_dc_scale table */
231 UINT8 *coded_block; /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/
232 INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
234 uint8_t *prev_pict_types; /* previous picture types in bitstream order, used for mb skip */
235 #define PREV_PICT_TYPES_BUFFER_SIZE 256
236 int mb_skiped; /* MUST BE SET only during DECODING */
237 UINT8 *mbskip_table; /* used to avoid copy if macroblock skipped (for black regions for example)
238 and used for b-frame encoding & decoding (contains skip table of next P Frame) */
239 UINT8 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */
240 UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */
241 UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */
242 uint8_t *allocated_edge_emu_buffer;
243 uint8_t *edge_emu_buffer; /* points into the middle of allocated_edge_emu_buffer */
246 float frame_qscale; /* qscale from the frame level rc FIXME remove*/
247 int adaptive_quant; /* use adaptive quantization */
248 int dquant; /* qscale difference to prev qscale */
249 int pict_type; /* I_TYPE, P_TYPE, B_TYPE, ... */
251 int last_non_b_pict_type; /* used for mpeg4 gmc b-frames & ratecontrol */
252 int frame_rate_index;
253 /* motion compensation */
255 int h263_long_vectors; /* use horrible h263v1 long vector mode */
257 DSPContext dsp; /* pointers for accelerated dsp fucntions */
258 int f_code; /* forward MV resolution */
259 int b_code; /* backward MV resolution for B Frames (mpeg4) */
260 INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */
261 INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */
262 INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */
263 INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */
264 INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
265 INT16 (*b_bidir_back_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */
266 INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */
267 int me_method; /* ME algorithm */
268 int scene_change_score;
270 #define MV_DIR_BACKWARD 1
271 #define MV_DIR_FORWARD 2
272 #define MV_DIRECT 4 // bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
274 #define MV_TYPE_16X16 0 /* 1 vector for the whole mb */
275 #define MV_TYPE_8X8 1 /* 4 vectors (h263, mpeg4 4MV) */
276 #define MV_TYPE_16X8 2 /* 2 vectors, one per 16x8 block */
277 #define MV_TYPE_FIELD 3 /* 2 vectors, one per field */
278 #define MV_TYPE_DMV 4 /* 2 vectors, special mpeg2 Dual Prime Vectors */
279 /* motion vectors for a macroblock
280 first coordinate : 0 = forward 1 = backward
281 second " : depend on type
282 third " : 0 = x, 1 = y
285 int field_select[2][2];
286 int last_mv[2][2][2]; /* last MV, used for MV prediction in MPEG1 & B-frame MPEG4 */
287 UINT8 *fcode_tab; /* smallest fcode needed for each MV */
291 int no_rounding; /* apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
292 for b-frames rounding mode is allways 0 */
294 int hurry_up; /* when set to 1 during decoding, b frames will be skiped
295 when set to 2 idct/dequant will be skipped too */
297 /* macroblock layer */
301 UINT8 *mb_type; /* Table for MB type */
302 #define MB_TYPE_INTRA 0x01
303 #define MB_TYPE_INTER 0x02
304 #define MB_TYPE_INTER4V 0x04
305 #define MB_TYPE_SKIPED 0x08
306 #define MB_TYPE_GMC 0x10
308 #define MB_TYPE_DIRECT 0x10
309 #define MB_TYPE_FORWARD 0x20
310 #define MB_TYPE_BACKWARD 0x40
311 #define MB_TYPE_BIDIR 0x80
313 int block_index[6]; /* index to current MB in block based arrays with edges*/
316 /* matrix transmitted in the bitstream */
317 UINT16 intra_matrix[64];
318 UINT16 chroma_intra_matrix[64];
319 UINT16 inter_matrix[64];
320 UINT16 chroma_inter_matrix[64];
321 #define QUANT_BIAS_SHIFT 4
322 int intra_quant_bias; /* bias for the quantizer */
323 int inter_quant_bias; /* bias for the quantizer */
324 int min_qcoeff; /* minimum encodable coefficient */
325 int max_qcoeff; /* maximum encodable coefficient */
326 int ac_esc_length; /* num of bits needed to encode the longest esc */
327 uint8_t *intra_ac_vlc_length;
328 uint8_t *intra_ac_vlc_last_length;
329 uint8_t *inter_ac_vlc_length;
330 uint8_t *inter_ac_vlc_last_length;
331 uint8_t *luma_dc_vlc_length;
332 uint8_t *chroma_dc_vlc_length;
333 #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
335 /* precomputed matrix (combine qscale and DCT renorm) */
336 int __align8 q_intra_matrix[32][64];
337 int __align8 q_inter_matrix[32][64];
338 /* identical to the above but for MMX & these are not permutated */
339 UINT16 __align8 q_intra_matrix16[32][64];
340 UINT16 __align8 q_inter_matrix16[32][64];
341 UINT16 __align8 q_intra_matrix16_bias[32][64];
342 UINT16 __align8 q_inter_matrix16_bias[32][64];
343 int block_last_index[6]; /* last non zero coefficient in block */
345 ScanTable __align8 intra_scantable;
346 ScanTable intra_h_scantable;
347 ScanTable intra_v_scantable;
348 ScanTable inter_scantable; // if inter == intra then intra should be used to reduce tha cache usage
349 UINT8 idct_permutation[64];
350 int idct_permutation_type;
351 #define FF_NO_IDCT_PERM 1
352 #define FF_LIBMPEG2_IDCT_PERM 2
353 #define FF_SIMPLE_IDCT_PERM 3
354 #define FF_TRANSPOSE_IDCT_PERM 4
356 void *opaque; /* private data for the user */
358 /* bit rate control */
359 int I_frame_bits; //FIXME used in mpeg12 ...
362 int frame_bits; /* bits used for the current frame */
363 RateControlContext rc_context; // contains stuff only accessed in ratecontrol.c
365 /* statistics, used for 2-pass encoding */
374 int misc_bits; // cbp, mb_type
375 int last_bits; //temp var used for calculating the above vars
377 /* error concealment / resync */
378 UINT8 *error_status_table; /* table of the error status of each MB */
379 #define VP_START 1 /* current MB is the first after a resync marker */
388 int resync_mb_x; /* x position of last resync marker */
389 int resync_mb_y; /* y position of last resync marker */
390 GetBitContext last_resync_gb; /* used to search for the next resync marker */
391 int mb_num_left; /* number of MBs left in this video packet (for partitioned Slices only)*/
392 int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */
393 int error_resilience;
395 ParseContext parse_context;
401 /* H.263+ specific */
404 int h263_aic; /* Advanded INTRA Coding (AIC) */
405 int h263_aic_dir; /* AIC direction: 0 = left, 1 = top */
408 int time_increment_resolution;
409 int time_increment_bits; /* number of bits to represent the fractional part of time */
411 int time_base; /* time in seconds of last I,P,S Frame */
412 INT64 time; /* time of current frame */
413 INT64 last_non_b_time;
414 UINT16 pp_time; /* time distance between the last 2 p,s,i frames */
415 UINT16 pb_time; /* time distance between the last b and p,s,i frame */
416 UINT16 pp_field_time;
417 UINT16 pb_field_time; /* like above, just for interlaced */
419 int vol_sprite_usage;
424 int sprite_brightness_change;
425 int num_sprite_warping_points;
426 int real_sprite_warping_points;
427 int sprite_offset[2][2]; /* sprite offset[isChroma][isMVY] */
428 int sprite_delta[2][2]; /* sprite_delta [isY][isMVY] */
429 int sprite_shift[2]; /* sprite shift [isChroma] */
432 int quarter_sample; /* 1->qpel, 0->half pel ME/MC */
435 int enhancement_type;
438 int aspect_ratio_info;
441 int sprite_warping_accuracy;
442 int low_latency_sprite;
443 int data_partitioning; /* data partitioning flag from header */
444 int partitioned_frame; /* is current frame partitioned */
445 int rvlc; /* reversible vlc */
446 int resync_marker; /* could this stream contain resync markers*/
447 int low_delay; /* no reordering needed / has no b-frames */
449 int vol_control_parameters; /* does the stream contain the low_delay flag, used to workaround buggy encoders */
450 PutBitContext tex_pb; /* used for data partitioned VOPs */
451 PutBitContext pb2; /* used for data partitioned VOPs */
452 #define PB_BUFFER_SIZE 1024*256
453 uint8_t *tex_pb_buffer;
456 #define CO_LOCATED_TYPE_4MV 1
457 #define CO_LOCATED_TYPE_FIELDMV 2
458 INT8 *co_located_type_table; /* 4mv & field_mv info for next b frame */
459 INT16 (*field_mv_table)[2][2]; /* used for interlaced b frame decoding */
460 INT8 (*field_select_table)[2]; /* wtf, no really another table for interlaced b frames */
461 int t_frame; /* time distance of first I -> B, used for interlaced b frames */
462 int padding_bug_score; /* used to detect the VERY common padding bug in MPEG4 */
464 /* divx specific, used to workaround (many) bugs in divx5 */
467 #define BITSTREAM_BUFFER_SIZE 1024*256
468 UINT8 *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them
469 int bitstream_buffer_size;
473 /* lavc specific stuff, used to workaround bugs in libavcodec */
478 int rv10_version; /* RV10 version: 0 or 3 */
479 int rv10_first_dc_coded[3];
482 struct MJpegContext *mjpeg_ctx;
483 int mjpeg_vsample[3]; /* vertical sampling factors, default = {2, 1, 1} */
484 int mjpeg_hsample[3]; /* horizontal sampling factors, default = {2, 1, 1} */
485 int mjpeg_write_tables; /* do we want to have quantisation- and
486 huffmantables in the jpeg file ? */
487 int mjpeg_data_only_frames; /* frames only with SOI, SOS and EOI markers */
489 /* MSMPEG4 specific */
492 int rl_chroma_table_index;
494 int use_skip_mb_code;
495 int slice_height; /* in macroblocks */
496 int first_slice_line; /* used in mpeg4 too to handle resync markers */
497 int flipflop_rounding;
498 int msmpeg4_version; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8*/
500 int esc3_level_length;
502 /* [mb_intra][isChroma][level][run][last] */
503 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2];
504 int inter_intra_pred;
507 /* decompression specific */
511 int fake_picture_number; /* picture number at the bitstream frame rate */
512 int gop_picture_number; /* index of the first picture of a GOP based on fake_pic_num & mpeg1 specific */
513 int last_mv_dir; /* last mv_dir, used for b frame encoding */
515 /* MPEG2 specific - I wish I had not to support this mess. */
516 int progressive_sequence;
517 int mpeg_f_code[2][2];
518 int picture_structure;
520 #define PICT_TOP_FIELD 1
521 #define PICT_BOTTOM_FIELD 2
524 int intra_dc_precision;
525 int frame_pred_frame_dct;
527 int concealment_motion_vectors;
529 int intra_vlc_format;
531 int repeat_first_field;
533 int progressive_frame;
540 /* These are explained on avcodec.h */
542 int rtp_payload_size;
543 void (*rtp_callback)(void *data, int size, int packet_number);
545 UINT8 *ptr_last_mb_line;
546 UINT32 mb_line_avgsize;
548 DCTELEM (*block)[64]; /* points to one of the following blocks */
549 DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block
550 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
552 #define SLICE_ERROR -1
553 #define SLICE_END -2 //end marker found
554 #define SLICE_NOEND -3 //no end marker or error found but mb count exceeded
556 void (*dct_unquantize_mpeg1)(struct MpegEncContext *s,
557 DCTELEM *block/*align 16*/, int n, int qscale);
558 void (*dct_unquantize_mpeg2)(struct MpegEncContext *s,
559 DCTELEM *block/*align 16*/, int n, int qscale);
560 void (*dct_unquantize_h263)(struct MpegEncContext *s,
561 DCTELEM *block/*align 16*/, int n, int qscale);
562 void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
563 DCTELEM *block/*align 16*/, int n, int qscale);
564 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
565 int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow);
566 void (*fdct)(DCTELEM *block/* align 16*/);
567 void (*idct_put)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
568 void (*idct_add)(UINT8 *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
569 //FIXME move above funcs into dspContext perhaps
573 int DCT_common_init(MpegEncContext *s);
574 int MPV_common_init(MpegEncContext *s);
575 void MPV_common_end(MpegEncContext *s);
576 void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
577 int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx);
578 void MPV_frame_end(MpegEncContext *s);
579 int MPV_encode_init(AVCodecContext *avctx);
580 int MPV_encode_end(AVCodecContext *avctx);
581 int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
583 void MPV_common_init_mmx(MpegEncContext *s);
586 void MPV_common_init_axp(MpegEncContext *s);
589 void MPV_common_init_mlib(MpegEncContext *s);
592 void MPV_common_init_mmi(MpegEncContext *s);
595 void MPV_common_init_armv4l(MpegEncContext *s);
598 void MPV_common_init_ppc(MpegEncContext *s);
600 extern void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w);
601 void ff_conceal_past_errors(MpegEncContext *s, int conceal_all);
602 void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length);
603 void ff_clean_intra_table_entries(MpegEncContext *s);
604 void ff_init_scantable(MpegEncContext *s, ScanTable *st, const UINT8 *src_scantable);
605 void ff_error_resilience(MpegEncContext *s);
606 void ff_draw_horiz_band(MpegEncContext *s);
607 void ff_emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h,
608 int src_x, int src_y, int w, int h);
609 char ff_get_pict_type_char(int pict_type);
610 int ff_combine_frame( MpegEncContext *s, int next, uint8_t **buf, int *buf_size);
612 extern enum PixelFormat ff_yuv420p_list[2];
614 extern int ff_bit_exact;
616 static inline void ff_init_block_index(MpegEncContext *s){
617 s->block_index[0]= s->block_wrap[0]*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
618 s->block_index[1]= s->block_wrap[0]*(s->mb_y*2 + 1) + s->mb_x*2;
619 s->block_index[2]= s->block_wrap[0]*(s->mb_y*2 + 2) - 1 + s->mb_x*2;
620 s->block_index[3]= s->block_wrap[0]*(s->mb_y*2 + 2) + s->mb_x*2;
621 s->block_index[4]= s->block_wrap[4]*(s->mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2) + s->mb_x;
622 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;
625 static inline void ff_update_block_index(MpegEncContext *s){
626 s->block_index[0]+=2;
627 s->block_index[1]+=2;
628 s->block_index[2]+=2;
629 s->block_index[3]+=2;
636 void ff_estimate_p_frame_motion(MpegEncContext * s,
638 void ff_estimate_b_frame_motion(MpegEncContext * s,
640 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
641 void ff_fix_long_p_mvs(MpegEncContext * s);
642 void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type);
643 void ff_init_me(MpegEncContext *s);
644 int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
648 extern const INT16 ff_mpeg1_default_intra_matrix[64];
649 extern const INT16 ff_mpeg1_default_non_intra_matrix[64];
650 extern UINT8 ff_mpeg1_dc_scale_table[128];
652 void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
653 void mpeg1_encode_mb(MpegEncContext *s,
654 DCTELEM block[6][64],
655 int motion_x, int motion_y);
656 void ff_mpeg1_encode_init(MpegEncContext *s);
660 typedef struct RLTable {
661 int n; /* number of entries of table_vlc minus 1 */
662 int last; /* number of values for last = 0 */
663 const UINT16 (*table_vlc)[2];
664 const INT8 *table_run;
665 const INT8 *table_level;
666 UINT8 *index_run[2]; /* encoding only */
667 INT8 *max_level[2]; /* encoding & decoding */
668 INT8 *max_run[2]; /* encoding & decoding */
669 VLC vlc; /* decoding only deprected FIXME remove*/
670 RL_VLC_ELEM *rl_vlc[32]; /* decoding only */
673 void init_rl(RLTable *rl);
674 void init_vlc_rl(RLTable *rl);
676 static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
679 index = rl->index_run[last][run];
682 if (level > rl->max_level[last][run])
684 return index + level - 1;
687 extern UINT8 ff_mpeg4_y_dc_scale_table[32];
688 extern UINT8 ff_mpeg4_c_dc_scale_table[32];
689 extern const INT16 ff_mpeg4_default_intra_matrix[64];
690 extern const INT16 ff_mpeg4_default_non_intra_matrix[64];
691 int ff_h263_decode_init(AVCodecContext *avctx);
692 int ff_h263_decode_frame(AVCodecContext *avctx,
693 void *data, int *data_size,
694 UINT8 *buf, int buf_size);
695 int ff_h263_decode_end(AVCodecContext *avctx);
696 void h263_encode_mb(MpegEncContext *s,
697 DCTELEM block[6][64],
698 int motion_x, int motion_y);
699 void mpeg4_encode_mb(MpegEncContext *s,
700 DCTELEM block[6][64],
701 int motion_x, int motion_y);
702 void h263_encode_picture_header(MpegEncContext *s, int picture_number);
703 int h263_encode_gob_header(MpegEncContext * s, int mb_line);
704 INT16 *h263_pred_motion(MpegEncContext * s, int block,
706 void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
708 void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
709 void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
710 void h263_encode_init(MpegEncContext *s);
711 void h263_decode_init_vlc(MpegEncContext *s);
712 int h263_decode_picture_header(MpegEncContext *s);
713 int ff_h263_decode_gob_header(MpegEncContext *s);
714 int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
717 int intel_h263_decode_picture_header(MpegEncContext *s);
718 int ff_h263_decode_mb(MpegEncContext *s,
719 DCTELEM block[6][64]);
720 int h263_get_picture_format(int width, int height);
721 void ff_mpeg4_encode_video_packet_header(MpegEncContext *s);
722 void ff_mpeg4_clean_buffers(MpegEncContext *s);
723 void ff_mpeg4_stuffing(PutBitContext * pbc);
724 void ff_mpeg4_init_partitions(MpegEncContext *s);
725 void ff_mpeg4_merge_partitions(MpegEncContext *s);
726 void ff_clean_mpeg4_qscales(MpegEncContext *s);
727 void ff_clean_h263_qscales(MpegEncContext *s);
728 int ff_mpeg4_decode_partitions(MpegEncContext *s);
729 int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
730 int ff_h263_resync(MpegEncContext *s);
731 int ff_h263_get_gob_height(MpegEncContext *s);
732 void ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
733 inline int ff_h263_round_chroma(int x);
737 void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
738 int rv_decode_dc(MpegEncContext *s, int n);
742 void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
743 void msmpeg4_encode_ext_header(MpegEncContext * s);
744 void msmpeg4_encode_mb(MpegEncContext * s,
745 DCTELEM block[6][64],
746 int motion_x, int motion_y);
747 int msmpeg4_decode_picture_header(MpegEncContext * s);
748 int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
749 int ff_msmpeg4_decode_init(MpegEncContext *s);
750 void ff_msmpeg4_encode_init(MpegEncContext *s);
751 int ff_wmv2_decode_picture_header(MpegEncContext * s);
752 void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr);
753 void ff_mspel_motion(MpegEncContext *s,
754 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
755 UINT8 **ref_picture, op_pixels_func (*pix_op)[4],
756 int motion_x, int motion_y, int h);
757 int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number);
758 void ff_wmv2_encode_mb(MpegEncContext * s,
759 DCTELEM block[6][64],
760 int motion_x, int motion_y);
763 int mjpeg_init(MpegEncContext *s);
764 void mjpeg_close(MpegEncContext *s);
765 void mjpeg_encode_mb(MpegEncContext *s,
766 DCTELEM block[6][64]);
767 void mjpeg_picture_header(MpegEncContext *s);
768 void mjpeg_picture_trailer(MpegEncContext *s);
772 int ff_rate_control_init(MpegEncContext *s);
773 float ff_rate_estimate_qscale(MpegEncContext *s);
774 void ff_write_pass1_stats(MpegEncContext *s);
775 void ff_rate_control_uninit(MpegEncContext *s);
776 double ff_eval(char *s, double *const_value, const char **const_name,
777 double (**func1)(void *, double), const char **func1_name,
778 double (**func2)(void *, double, double), char **func2_name,
782 #endif /* AVCODEC_MPEGVIDEO_H */