Libav 0.7.1
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00001 /* 00002 * Generic DCT based hybrid video encoder 00003 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard 00004 * Copyright (c) 2002-2004 Michael Niedermayer 00005 * 00006 * This file is part of Libav. 00007 * 00008 * Libav is free software; you can redistribute it and/or 00009 * modify it under the terms of the GNU Lesser General Public 00010 * License as published by the Free Software Foundation; either 00011 * version 2.1 of the License, or (at your option) any later version. 00012 * 00013 * Libav is distributed in the hope that it will be useful, 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00016 * Lesser General Public License for more details. 00017 * 00018 * You should have received a copy of the GNU Lesser General Public 00019 * License along with Libav; if not, write to the Free Software 00020 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00021 */ 00022 00028 #ifndef AVCODEC_MPEGVIDEO_H 00029 #define AVCODEC_MPEGVIDEO_H 00030 00031 #include "dsputil.h" 00032 #include "get_bits.h" 00033 #include "put_bits.h" 00034 #include "ratecontrol.h" 00035 #include "parser.h" 00036 #include "mpeg12data.h" 00037 #include "rl.h" 00038 00039 #define FRAME_SKIPPED 100 ///< return value for header parsers if frame is not coded 00040 00041 enum OutputFormat { 00042 FMT_MPEG1, 00043 FMT_H261, 00044 FMT_H263, 00045 FMT_MJPEG, 00046 FMT_H264, 00047 }; 00048 00049 #define MPEG_BUF_SIZE (16 * 1024) 00050 00051 #define QMAT_SHIFT_MMX 16 00052 #define QMAT_SHIFT 22 00053 00054 #define MAX_FCODE 7 00055 #define MAX_MV 2048 00056 00057 #define MAX_THREADS 16 00058 00059 #define MAX_PICTURE_COUNT 32 00060 00061 #define ME_MAP_SIZE 64 00062 #define ME_MAP_SHIFT 3 00063 #define ME_MAP_MV_BITS 11 00064 00065 #define MAX_MB_BYTES (30*16*16*3/8 + 120) 00066 00067 #define INPLACE_OFFSET 16 00068 00069 /* Start codes. */ 00070 #define SEQ_END_CODE 0x000001b7 00071 #define SEQ_START_CODE 0x000001b3 00072 #define GOP_START_CODE 0x000001b8 00073 #define PICTURE_START_CODE 0x00000100 00074 #define SLICE_MIN_START_CODE 0x00000101 00075 #define SLICE_MAX_START_CODE 0x000001af 00076 #define EXT_START_CODE 0x000001b5 00077 #define USER_START_CODE 0x000001b2 00078 00079 struct MpegEncContext; 00080 00084 typedef struct Picture{ 00085 FF_COMMON_FRAME 00086 00090 uint8_t *interpolated[3]; 00091 int8_t *qscale_table_base; 00092 int16_t (*motion_val_base[2])[2]; 00093 uint32_t *mb_type_base; 00094 #define MB_TYPE_INTRA MB_TYPE_INTRA4x4 //default mb_type if there is just one type 00095 #define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4) 00096 #define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16) 00097 #define IS_PCM(a) ((a)&MB_TYPE_INTRA_PCM) 00098 #define IS_INTRA(a) ((a)&7) 00099 #define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8)) 00100 #define IS_SKIP(a) ((a)&MB_TYPE_SKIP) 00101 #define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM) 00102 #define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED) 00103 #define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2) 00104 #define IS_GMC(a) ((a)&MB_TYPE_GMC) 00105 #define IS_16X16(a) ((a)&MB_TYPE_16x16) 00106 #define IS_16X8(a) ((a)&MB_TYPE_16x8) 00107 #define IS_8X16(a) ((a)&MB_TYPE_8x16) 00108 #define IS_8X8(a) ((a)&MB_TYPE_8x8) 00109 #define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused 00110 #define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused 00111 #define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused 00112 #define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused 00113 #define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED) 00114 #define IS_QUANT(a) ((a)&MB_TYPE_QUANT) 00115 #define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list)))) 00116 #define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list)))) ///< does this mb use listX, note does not work if subMBs 00117 #define HAS_CBP(a) ((a)&MB_TYPE_CBP) 00118 00119 int field_poc[2]; 00120 int poc; 00121 int frame_num; 00122 int mmco_reset; 00123 int pic_id; 00125 int long_ref; 00126 int ref_poc[2][2][16]; 00127 int ref_count[2][2]; 00128 int mbaff; 00129 int field_picture; 00130 00131 int mb_var_sum; 00132 int mc_mb_var_sum; 00133 uint16_t *mb_var; 00134 uint16_t *mc_mb_var; 00135 uint8_t *mb_mean; 00136 int32_t *mb_cmp_score; 00137 int b_frame_score; /* */ 00138 struct MpegEncContext *owner2; 00139 } Picture; 00140 00144 typedef struct MotionEstContext{ 00145 AVCodecContext *avctx; 00146 int skip; 00147 int co_located_mv[4][2]; 00148 int direct_basis_mv[4][2]; 00149 uint8_t *scratchpad; 00150 uint8_t *best_mb; 00151 uint8_t *temp_mb[2]; 00152 uint8_t *temp; 00153 int best_bits; 00154 uint32_t *map; 00155 uint32_t *score_map; 00156 int map_generation; 00157 int pre_penalty_factor; 00158 int penalty_factor; 00163 int sub_penalty_factor; 00164 int mb_penalty_factor; 00165 int flags; 00166 int sub_flags; 00167 int mb_flags; 00168 int pre_pass; 00169 int dia_size; 00170 int xmin; 00171 int xmax; 00172 int ymin; 00173 int ymax; 00174 int pred_x; 00175 int pred_y; 00176 uint8_t *src[4][4]; 00177 uint8_t *ref[4][4]; 00178 int stride; 00179 int uvstride; 00180 /* temp variables for picture complexity calculation */ 00181 int mc_mb_var_sum_temp; 00182 int mb_var_sum_temp; 00183 int scene_change_score; 00184 /* cmp, chroma_cmp;*/ 00185 op_pixels_func (*hpel_put)[4]; 00186 op_pixels_func (*hpel_avg)[4]; 00187 qpel_mc_func (*qpel_put)[16]; 00188 qpel_mc_func (*qpel_avg)[16]; 00189 uint8_t (*mv_penalty)[MAX_MV*2+1]; 00190 uint8_t *current_mv_penalty; 00191 int (*sub_motion_search)(struct MpegEncContext * s, 00192 int *mx_ptr, int *my_ptr, int dmin, 00193 int src_index, int ref_index, 00194 int size, int h); 00195 }MotionEstContext; 00196 00200 typedef struct MpegEncContext { 00201 struct AVCodecContext *avctx; 00202 /* the following parameters must be initialized before encoding */ 00203 int width, height; 00204 int gop_size; 00205 int intra_only; 00206 int bit_rate; 00207 enum OutputFormat out_format; 00208 int h263_pred; 00209 int pb_frame; 00210 00211 /* the following codec id fields are deprecated in favor of codec_id */ 00212 int h263_plus; 00213 int h263_flv; 00214 00215 enum CodecID codec_id; /* see CODEC_ID_xxx */ 00216 int fixed_qscale; 00217 int encoding; 00218 int flags; 00219 int flags2; 00220 int max_b_frames; 00221 int luma_elim_threshold; 00222 int chroma_elim_threshold; 00223 int strict_std_compliance; 00224 int workaround_bugs; 00225 int codec_tag; 00226 int stream_codec_tag; 00227 /* the following fields are managed internally by the encoder */ 00228 00229 /* sequence parameters */ 00230 int context_initialized; 00231 int input_picture_number; 00232 int coded_picture_number; 00233 int picture_number; //FIXME remove, unclear definition 00234 int picture_in_gop_number; 00235 int b_frames_since_non_b; 00236 int64_t user_specified_pts; 00237 int mb_width, mb_height; 00238 int mb_stride; 00239 int b8_stride; 00240 int b4_stride; 00241 int h_edge_pos, v_edge_pos; 00242 int mb_num; 00243 int linesize; 00244 int uvlinesize; 00245 Picture *picture; 00246 Picture **input_picture; 00247 Picture **reordered_input_picture; 00248 00249 int y_dc_scale, c_dc_scale; 00250 int ac_pred; 00251 int block_last_index[12]; 00252 int h263_aic; 00253 00254 /* scantables */ 00255 ScanTable inter_scantable; 00256 ScanTable intra_scantable; 00257 ScanTable intra_h_scantable; 00258 ScanTable intra_v_scantable; 00259 00260 /* WARNING: changes above this line require updates to hardcoded 00261 * offsets used in asm. */ 00262 00264 PutBitContext pb; 00265 00266 int start_mb_y; 00267 int end_mb_y; 00268 struct MpegEncContext *thread_context[MAX_THREADS]; 00269 00274 Picture last_picture; 00275 00280 Picture next_picture; 00281 00286 Picture new_picture; 00287 00292 Picture current_picture; 00293 00294 Picture *last_picture_ptr; 00295 Picture *next_picture_ptr; 00296 Picture *current_picture_ptr; 00297 int picture_count; 00298 int picture_range_start, picture_range_end; 00299 uint8_t *visualization_buffer[3]; //< temporary buffer vor MV visualization 00300 int last_dc[3]; 00301 int16_t *dc_val_base; 00302 int16_t *dc_val[3]; 00303 int16_t dc_cache[4*5]; 00304 const uint8_t *y_dc_scale_table; 00305 const uint8_t *c_dc_scale_table; 00306 const uint8_t *chroma_qscale_table; 00307 uint8_t *coded_block_base; 00308 uint8_t *coded_block; 00309 int16_t (*ac_val_base)[16]; 00310 int16_t (*ac_val[3])[16]; 00311 uint8_t *prev_pict_types; 00312 #define PREV_PICT_TYPES_BUFFER_SIZE 256 00313 int mb_skipped; 00314 uint8_t *mbskip_table; 00316 uint8_t *mbintra_table; 00317 uint8_t *cbp_table; 00318 uint8_t *pred_dir_table; 00319 uint8_t *allocated_edge_emu_buffer; 00320 uint8_t *edge_emu_buffer; 00321 uint8_t *rd_scratchpad; 00322 uint8_t *obmc_scratchpad; 00323 uint8_t *b_scratchpad; 00324 00325 int qscale; 00326 int chroma_qscale; 00327 unsigned int lambda; 00328 unsigned int lambda2; 00329 int *lambda_table; 00330 int adaptive_quant; 00331 int dquant; 00332 int closed_gop; 00333 int pict_type; 00334 int last_pict_type; //FIXME removes 00335 int last_non_b_pict_type; 00336 int dropable; 00337 int frame_rate_index; 00338 int last_lambda_for[5]; 00339 int skipdct; 00340 00341 /* motion compensation */ 00342 int unrestricted_mv; 00343 int h263_long_vectors; 00344 int decode; 00345 00346 DSPContext dsp; 00347 int f_code; 00348 int b_code; 00349 int16_t (*p_mv_table_base)[2]; 00350 int16_t (*b_forw_mv_table_base)[2]; 00351 int16_t (*b_back_mv_table_base)[2]; 00352 int16_t (*b_bidir_forw_mv_table_base)[2]; 00353 int16_t (*b_bidir_back_mv_table_base)[2]; 00354 int16_t (*b_direct_mv_table_base)[2]; 00355 int16_t (*p_field_mv_table_base[2][2])[2]; 00356 int16_t (*b_field_mv_table_base[2][2][2])[2]; 00357 int16_t (*p_mv_table)[2]; 00358 int16_t (*b_forw_mv_table)[2]; 00359 int16_t (*b_back_mv_table)[2]; 00360 int16_t (*b_bidir_forw_mv_table)[2]; 00361 int16_t (*b_bidir_back_mv_table)[2]; 00362 int16_t (*b_direct_mv_table)[2]; 00363 int16_t (*p_field_mv_table[2][2])[2]; 00364 int16_t (*b_field_mv_table[2][2][2])[2]; 00365 uint8_t (*p_field_select_table[2]); 00366 uint8_t (*b_field_select_table[2][2]); 00367 int me_method; 00368 int mv_dir; 00369 #define MV_DIR_FORWARD 1 00370 #define MV_DIR_BACKWARD 2 00371 #define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4) 00372 int mv_type; 00373 #define MV_TYPE_16X16 0 ///< 1 vector for the whole mb 00374 #define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV) 00375 #define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block 00376 #define MV_TYPE_FIELD 3 ///< 2 vectors, one per field 00377 #define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors 00378 00383 int mv[2][4][2]; 00384 int field_select[2][2]; 00385 int last_mv[2][2][2]; 00386 uint8_t *fcode_tab; 00387 int16_t direct_scale_mv[2][64]; 00388 00389 MotionEstContext me; 00390 00391 int no_rounding; 00394 /* macroblock layer */ 00395 int mb_x, mb_y; 00396 int mb_skip_run; 00397 int mb_intra; 00398 uint16_t *mb_type; 00399 #define CANDIDATE_MB_TYPE_INTRA 0x01 00400 #define CANDIDATE_MB_TYPE_INTER 0x02 00401 #define CANDIDATE_MB_TYPE_INTER4V 0x04 00402 #define CANDIDATE_MB_TYPE_SKIPPED 0x08 00403 //#define MB_TYPE_GMC 0x10 00404 00405 #define CANDIDATE_MB_TYPE_DIRECT 0x10 00406 #define CANDIDATE_MB_TYPE_FORWARD 0x20 00407 #define CANDIDATE_MB_TYPE_BACKWARD 0x40 00408 #define CANDIDATE_MB_TYPE_BIDIR 0x80 00409 00410 #define CANDIDATE_MB_TYPE_INTER_I 0x100 00411 #define CANDIDATE_MB_TYPE_FORWARD_I 0x200 00412 #define CANDIDATE_MB_TYPE_BACKWARD_I 0x400 00413 #define CANDIDATE_MB_TYPE_BIDIR_I 0x800 00414 00415 #define CANDIDATE_MB_TYPE_DIRECT0 0x1000 00416 00417 int block_index[6]; 00418 int block_wrap[6]; 00419 uint8_t *dest[3]; 00420 00421 int *mb_index2xy; 00422 00424 uint16_t intra_matrix[64]; 00425 uint16_t chroma_intra_matrix[64]; 00426 uint16_t inter_matrix[64]; 00427 uint16_t chroma_inter_matrix[64]; 00428 #define QUANT_BIAS_SHIFT 8 00429 int intra_quant_bias; 00430 int inter_quant_bias; 00431 int min_qcoeff; 00432 int max_qcoeff; 00433 int ac_esc_length; 00434 uint8_t *intra_ac_vlc_length; 00435 uint8_t *intra_ac_vlc_last_length; 00436 uint8_t *inter_ac_vlc_length; 00437 uint8_t *inter_ac_vlc_last_length; 00438 uint8_t *luma_dc_vlc_length; 00439 uint8_t *chroma_dc_vlc_length; 00440 #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level)) 00441 00442 int coded_score[8]; 00443 00445 int (*q_intra_matrix)[64]; 00446 int (*q_inter_matrix)[64]; 00448 uint16_t (*q_intra_matrix16)[2][64]; 00449 uint16_t (*q_inter_matrix16)[2][64]; 00450 00451 /* noise reduction */ 00452 int (*dct_error_sum)[64]; 00453 int dct_count[2]; 00454 uint16_t (*dct_offset)[64]; 00455 00456 void *opaque; 00457 00458 /* bit rate control */ 00459 int64_t wanted_bits; 00460 int64_t total_bits; 00461 int frame_bits; 00462 int next_lambda; 00463 RateControlContext rc_context; 00464 00465 /* statistics, used for 2-pass encoding */ 00466 int mv_bits; 00467 int header_bits; 00468 int i_tex_bits; 00469 int p_tex_bits; 00470 int i_count; 00471 int f_count; 00472 int b_count; 00473 int skip_count; 00474 int misc_bits; 00475 int last_bits; 00476 00477 /* error concealment / resync */ 00478 int error_count, error_occurred; 00479 uint8_t *error_status_table; 00480 #define VP_START 1 ///< current MB is the first after a resync marker 00481 #define AC_ERROR 2 00482 #define DC_ERROR 4 00483 #define MV_ERROR 8 00484 #define AC_END 16 00485 #define DC_END 32 00486 #define MV_END 64 00487 //FIXME some prefix? 00488 00489 int resync_mb_x; 00490 int resync_mb_y; 00491 GetBitContext last_resync_gb; 00492 int mb_num_left; 00493 int next_p_frame_damaged; 00494 int error_recognition; 00495 00496 ParseContext parse_context; 00497 00498 /* H.263 specific */ 00499 int gob_index; 00500 int obmc; 00501 int showed_packed_warning; 00502 00503 /* H.263+ specific */ 00504 int umvplus; 00505 int h263_aic_dir; 00506 int h263_slice_structured; 00507 int alt_inter_vlc; 00508 int modified_quant; 00509 int loop_filter; 00510 int custom_pcf; 00511 00512 /* mpeg4 specific */ 00513 int time_increment_bits; 00514 int last_time_base; 00515 int time_base; 00516 int64_t time; 00517 int64_t last_non_b_time; 00518 uint16_t pp_time; 00519 uint16_t pb_time; 00520 uint16_t pp_field_time; 00521 uint16_t pb_field_time; 00522 int shape; 00523 int vol_sprite_usage; 00524 int sprite_width; 00525 int sprite_height; 00526 int sprite_left; 00527 int sprite_top; 00528 int sprite_brightness_change; 00529 int num_sprite_warping_points; 00530 int real_sprite_warping_points; 00531 uint16_t sprite_traj[4][2]; 00532 int sprite_offset[2][2]; 00533 int sprite_delta[2][2]; 00534 int sprite_shift[2]; 00535 int mcsel; 00536 int quant_precision; 00537 int quarter_sample; 00538 int scalability; 00539 int hierachy_type; 00540 int enhancement_type; 00541 int new_pred; 00542 int reduced_res_vop; 00543 int aspect_ratio_info; //FIXME remove 00544 int sprite_warping_accuracy; 00545 int low_latency_sprite; 00546 int data_partitioning; 00547 int partitioned_frame; 00548 int rvlc; 00549 int resync_marker; 00550 int low_delay; 00551 int vo_type; 00552 int vol_control_parameters; 00553 int intra_dc_threshold; 00554 int use_intra_dc_vlc; 00555 PutBitContext tex_pb; 00556 PutBitContext pb2; 00557 int mpeg_quant; 00558 int t_frame; 00559 int padding_bug_score; 00560 int cplx_estimation_trash_i; 00561 int cplx_estimation_trash_p; 00562 int cplx_estimation_trash_b; 00563 00564 /* divx specific, used to workaround (many) bugs in divx5 */ 00565 int divx_version; 00566 int divx_build; 00567 int divx_packed; 00568 uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them 00569 int bitstream_buffer_size; 00570 unsigned int allocated_bitstream_buffer_size; 00571 00572 int xvid_build; 00573 00574 /* lavc specific stuff, used to workaround bugs in libavcodec */ 00575 int lavc_build; 00576 00577 /* RV10 specific */ 00578 int rv10_version; 00579 int rv10_first_dc_coded[3]; 00580 int orig_width, orig_height; 00581 00582 /* MJPEG specific */ 00583 struct MJpegContext *mjpeg_ctx; 00584 int mjpeg_vsample[3]; 00585 int mjpeg_hsample[3]; 00586 00587 /* MSMPEG4 specific */ 00588 int mv_table_index; 00589 int rl_table_index; 00590 int rl_chroma_table_index; 00591 int dc_table_index; 00592 int use_skip_mb_code; 00593 int slice_height; 00594 int first_slice_line; 00595 int flipflop_rounding; 00596 int msmpeg4_version; 00597 int per_mb_rl_table; 00598 int esc3_level_length; 00599 int esc3_run_length; 00601 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2]; 00602 int inter_intra_pred; 00603 int mspel; 00604 00605 /* decompression specific */ 00606 GetBitContext gb; 00607 00608 /* Mpeg1 specific */ 00609 int gop_picture_number; 00610 int last_mv_dir; 00611 int broken_link; 00612 uint8_t *vbv_delay_ptr; 00613 00614 /* MPEG-2-specific - I wished not to have to support this mess. */ 00615 int progressive_sequence; 00616 int mpeg_f_code[2][2]; 00617 int picture_structure; 00618 /* picture type */ 00619 #define PICT_TOP_FIELD 1 00620 #define PICT_BOTTOM_FIELD 2 00621 #define PICT_FRAME 3 00622 00623 int intra_dc_precision; 00624 int frame_pred_frame_dct; 00625 int top_field_first; 00626 int concealment_motion_vectors; 00627 int q_scale_type; 00628 int intra_vlc_format; 00629 int alternate_scan; 00630 int repeat_first_field; 00631 int chroma_420_type; 00632 int chroma_format; 00633 #define CHROMA_420 1 00634 #define CHROMA_422 2 00635 #define CHROMA_444 3 00636 int chroma_x_shift;//depend on pix_format, that depend on chroma_format 00637 int chroma_y_shift; 00638 00639 int progressive_frame; 00640 int full_pel[2]; 00641 int interlaced_dct; 00642 int first_slice; 00643 int first_field; 00644 00645 /* RTP specific */ 00646 int rtp_mode; 00647 00648 uint8_t *ptr_lastgob; 00649 int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped 00650 DCTELEM (*pblocks[12])[64]; 00651 00652 DCTELEM (*block)[64]; 00653 DCTELEM (*blocks)[8][64]; // for HQ mode we need to keep the best block 00654 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch() 00655 #define SLICE_OK 0 00656 #define SLICE_ERROR -1 00657 #define SLICE_END -2 ///<end marker found 00658 #define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded 00659 00660 void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, 00661 DCTELEM *block/*align 16*/, int n, int qscale); 00662 void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, 00663 DCTELEM *block/*align 16*/, int n, int qscale); 00664 void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, 00665 DCTELEM *block/*align 16*/, int n, int qscale); 00666 void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, 00667 DCTELEM *block/*align 16*/, int n, int qscale); 00668 void (*dct_unquantize_h263_intra)(struct MpegEncContext *s, 00669 DCTELEM *block/*align 16*/, int n, int qscale); 00670 void (*dct_unquantize_h263_inter)(struct MpegEncContext *s, 00671 DCTELEM *block/*align 16*/, int n, int qscale); 00672 void (*dct_unquantize_h261_intra)(struct MpegEncContext *s, 00673 DCTELEM *block/*align 16*/, int n, int qscale); 00674 void (*dct_unquantize_h261_inter)(struct MpegEncContext *s, 00675 DCTELEM *block/*align 16*/, int n, int qscale); 00676 void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both) 00677 DCTELEM *block/*align 16*/, int n, int qscale); 00678 void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both) 00679 DCTELEM *block/*align 16*/, int n, int qscale); 00680 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow); 00681 int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow); 00682 void (*denoise_dct)(struct MpegEncContext *s, DCTELEM *block); 00683 } MpegEncContext; 00684 00685 #define REBASE_PICTURE(pic, new_ctx, old_ctx) (pic ? \ 00686 (pic >= old_ctx->picture && pic < old_ctx->picture+old_ctx->picture_count ?\ 00687 &new_ctx->picture[pic - old_ctx->picture] : pic - (Picture*)old_ctx + (Picture*)new_ctx)\ 00688 : NULL) 00689 00690 void MPV_decode_defaults(MpegEncContext *s); 00691 int MPV_common_init(MpegEncContext *s); 00692 void MPV_common_end(MpegEncContext *s); 00693 void MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]); 00694 int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx); 00695 void MPV_frame_end(MpegEncContext *s); 00696 int MPV_encode_init(AVCodecContext *avctx); 00697 int MPV_encode_end(AVCodecContext *avctx); 00698 int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data); 00699 void MPV_common_init_mmx(MpegEncContext *s); 00700 void MPV_common_init_axp(MpegEncContext *s); 00701 void MPV_common_init_mlib(MpegEncContext *s); 00702 void MPV_common_init_mmi(MpegEncContext *s); 00703 void MPV_common_init_arm(MpegEncContext *s); 00704 void MPV_common_init_altivec(MpegEncContext *s); 00705 void MPV_common_init_bfin(MpegEncContext *s); 00706 void ff_clean_intra_table_entries(MpegEncContext *s); 00707 void ff_draw_horiz_band(MpegEncContext *s, int y, int h); 00708 void ff_mpeg_flush(AVCodecContext *avctx); 00709 void ff_print_debug_info(MpegEncContext *s, AVFrame *pict); 00710 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix); 00711 void ff_release_unused_pictures(MpegEncContext *s, int remove_current); 00712 int ff_find_unused_picture(MpegEncContext *s, int shared); 00713 void ff_denoise_dct(MpegEncContext *s, DCTELEM *block); 00714 void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src); 00715 int MPV_lowest_referenced_row(MpegEncContext *s, int dir); 00716 void MPV_report_decode_progress(MpegEncContext *s); 00717 int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src); 00718 const uint8_t *ff_find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state); 00719 void ff_set_qscale(MpegEncContext * s, int qscale); 00720 00721 void ff_er_frame_start(MpegEncContext *s); 00722 void ff_er_frame_end(MpegEncContext *s); 00723 void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status); 00724 00725 int ff_dct_common_init(MpegEncContext *s); 00726 void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64], 00727 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra); 00728 00729 void ff_init_block_index(MpegEncContext *s); 00730 void ff_copy_picture(Picture *dst, Picture *src); 00731 00736 int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared); 00737 00738 extern const enum PixelFormat ff_pixfmt_list_420[]; 00739 extern const enum PixelFormat ff_hwaccel_pixfmt_list_420[]; 00740 00741 static inline void ff_update_block_index(MpegEncContext *s){ 00742 const int block_size= 8>>s->avctx->lowres; 00743 00744 s->block_index[0]+=2; 00745 s->block_index[1]+=2; 00746 s->block_index[2]+=2; 00747 s->block_index[3]+=2; 00748 s->block_index[4]++; 00749 s->block_index[5]++; 00750 s->dest[0]+= 2*block_size; 00751 s->dest[1]+= block_size; 00752 s->dest[2]+= block_size; 00753 } 00754 00755 static inline int get_bits_diff(MpegEncContext *s){ 00756 const int bits= put_bits_count(&s->pb); 00757 const int last= s->last_bits; 00758 00759 s->last_bits = bits; 00760 00761 return bits - last; 00762 } 00763 00764 static inline int ff_h263_round_chroma(int x){ 00765 static const uint8_t h263_chroma_roundtab[16] = { 00766 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 00767 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 00768 }; 00769 return h263_chroma_roundtab[x & 0xf] + (x >> 3); 00770 } 00771 00772 /* motion_est.c */ 00773 void ff_estimate_p_frame_motion(MpegEncContext * s, 00774 int mb_x, int mb_y); 00775 void ff_estimate_b_frame_motion(MpegEncContext * s, 00776 int mb_x, int mb_y); 00777 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type); 00778 void ff_fix_long_p_mvs(MpegEncContext * s); 00779 void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select, 00780 int16_t (*mv_table)[2], int f_code, int type, int truncate); 00781 int ff_init_me(MpegEncContext *s); 00782 int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y); 00783 int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr, 00784 int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2], 00785 int ref_mv_scale, int size, int h); 00786 int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index, 00787 int ref_index, int size, int h, int add_rate); 00788 00789 /* mpeg12.c */ 00790 extern const uint8_t ff_mpeg1_dc_scale_table[128]; 00791 extern const uint8_t * const ff_mpeg2_dc_scale_table[4]; 00792 00793 void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number); 00794 void mpeg1_encode_mb(MpegEncContext *s, 00795 DCTELEM block[6][64], 00796 int motion_x, int motion_y); 00797 void ff_mpeg1_encode_init(MpegEncContext *s); 00798 void ff_mpeg1_encode_slice_header(MpegEncContext *s); 00799 void ff_mpeg1_clean_buffers(MpegEncContext *s); 00800 int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s); 00801 00802 extern const uint8_t ff_aic_dc_scale_table[32]; 00803 extern const uint8_t ff_h263_chroma_qscale_table[32]; 00804 extern const uint8_t ff_h263_loop_filter_strength[32]; 00805 00806 /* h261.c */ 00807 void ff_h261_loop_filter(MpegEncContext *s); 00808 void ff_h261_reorder_mb_index(MpegEncContext* s); 00809 void ff_h261_encode_mb(MpegEncContext *s, 00810 DCTELEM block[6][64], 00811 int motion_x, int motion_y); 00812 void ff_h261_encode_picture_header(MpegEncContext * s, int picture_number); 00813 void ff_h261_encode_init(MpegEncContext *s); 00814 int ff_h261_get_picture_format(int width, int height); 00815 00816 00817 /* rv10.c */ 00818 void rv10_encode_picture_header(MpegEncContext *s, int picture_number); 00819 int rv_decode_dc(MpegEncContext *s, int n); 00820 void rv20_encode_picture_header(MpegEncContext *s, int picture_number); 00821 00822 00823 /* msmpeg4.c */ 00824 void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number); 00825 void msmpeg4_encode_ext_header(MpegEncContext * s); 00826 void msmpeg4_encode_mb(MpegEncContext * s, 00827 DCTELEM block[6][64], 00828 int motion_x, int motion_y); 00829 int msmpeg4_decode_picture_header(MpegEncContext * s); 00830 int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size); 00831 int ff_msmpeg4_decode_init(AVCodecContext *avctx); 00832 void ff_msmpeg4_encode_init(MpegEncContext *s); 00833 int ff_wmv2_decode_picture_header(MpegEncContext * s); 00834 int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s); 00835 void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr); 00836 void ff_mspel_motion(MpegEncContext *s, 00837 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, 00838 uint8_t **ref_picture, op_pixels_func (*pix_op)[4], 00839 int motion_x, int motion_y, int h); 00840 int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number); 00841 void ff_wmv2_encode_mb(MpegEncContext * s, 00842 DCTELEM block[6][64], 00843 int motion_x, int motion_y); 00844 00845 #endif /* AVCODEC_MPEGVIDEO_H */