Libav
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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 FFmpeg. 00007 * 00008 * FFmpeg 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 * FFmpeg 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 FFmpeg; 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 00082 typedef struct Picture{ 00083 FF_COMMON_FRAME 00084 00088 uint8_t *interpolated[3]; 00089 int16_t (*motion_val_base[2])[2]; 00090 uint32_t *mb_type_base; 00091 #define MB_TYPE_INTRA MB_TYPE_INTRA4x4 //default mb_type if there is just one type 00092 #define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4) 00093 #define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16) 00094 #define IS_PCM(a) ((a)&MB_TYPE_INTRA_PCM) 00095 #define IS_INTRA(a) ((a)&7) 00096 #define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8)) 00097 #define IS_SKIP(a) ((a)&MB_TYPE_SKIP) 00098 #define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM) 00099 #define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED) 00100 #define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2) 00101 #define IS_GMC(a) ((a)&MB_TYPE_GMC) 00102 #define IS_16X16(a) ((a)&MB_TYPE_16x16) 00103 #define IS_16X8(a) ((a)&MB_TYPE_16x8) 00104 #define IS_8X16(a) ((a)&MB_TYPE_8x16) 00105 #define IS_8X8(a) ((a)&MB_TYPE_8x8) 00106 #define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused 00107 #define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused 00108 #define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused 00109 #define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused 00110 #define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED) 00111 #define IS_QUANT(a) ((a)&MB_TYPE_QUANT) 00112 #define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list)))) 00113 #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 00114 #define HAS_CBP(a) ((a)&MB_TYPE_CBP) 00115 00116 int field_poc[2]; 00117 int poc; 00118 int frame_num; 00119 int mmco_reset; 00120 int pic_id; 00122 int long_ref; 00123 int ref_poc[2][2][16]; 00124 int ref_count[2][2]; 00125 int mbaff; 00126 00127 int mb_var_sum; 00128 int mc_mb_var_sum; 00129 uint16_t *mb_var; 00130 uint16_t *mc_mb_var; 00131 uint8_t *mb_mean; 00132 int32_t *mb_cmp_score; 00133 int b_frame_score; /* */ 00134 } Picture; 00135 00136 struct MpegEncContext; 00137 00141 typedef struct MotionEstContext{ 00142 AVCodecContext *avctx; 00143 int skip; 00144 int co_located_mv[4][2]; 00145 int direct_basis_mv[4][2]; 00146 uint8_t *scratchpad; 00147 uint8_t *best_mb; 00148 uint8_t *temp_mb[2]; 00149 uint8_t *temp; 00150 int best_bits; 00151 uint32_t *map; 00152 uint32_t *score_map; 00153 int map_generation; 00154 int pre_penalty_factor; 00155 int penalty_factor; 00160 int sub_penalty_factor; 00161 int mb_penalty_factor; 00162 int flags; 00163 int sub_flags; 00164 int mb_flags; 00165 int pre_pass; 00166 int dia_size; 00167 int xmin; 00168 int xmax; 00169 int ymin; 00170 int ymax; 00171 int pred_x; 00172 int pred_y; 00173 uint8_t *src[4][4]; 00174 uint8_t *ref[4][4]; 00175 int stride; 00176 int uvstride; 00177 /* temp variables for picture complexity calculation */ 00178 int mc_mb_var_sum_temp; 00179 int mb_var_sum_temp; 00180 int scene_change_score; 00181 /* cmp, chroma_cmp;*/ 00182 op_pixels_func (*hpel_put)[4]; 00183 op_pixels_func (*hpel_avg)[4]; 00184 qpel_mc_func (*qpel_put)[16]; 00185 qpel_mc_func (*qpel_avg)[16]; 00186 uint8_t (*mv_penalty)[MAX_MV*2+1]; 00187 uint8_t *current_mv_penalty; 00188 int (*sub_motion_search)(struct MpegEncContext * s, 00189 int *mx_ptr, int *my_ptr, int dmin, 00190 int src_index, int ref_index, 00191 int size, int h); 00192 }MotionEstContext; 00193 00197 typedef struct MpegEncContext { 00198 struct AVCodecContext *avctx; 00199 /* the following parameters must be initialized before encoding */ 00200 int width, height; 00201 int gop_size; 00202 int intra_only; 00203 int bit_rate; 00204 enum OutputFormat out_format; 00205 int h263_pred; 00206 int pb_frame; 00207 00208 /* the following codec id fields are deprecated in favor of codec_id */ 00209 int h263_plus; 00210 int h263_msmpeg4; 00211 int h263_flv; 00212 00213 enum CodecID codec_id; /* see CODEC_ID_xxx */ 00214 int fixed_qscale; 00215 int encoding; 00216 int flags; 00217 int flags2; 00218 int max_b_frames; 00219 int luma_elim_threshold; 00220 int chroma_elim_threshold; 00221 int strict_std_compliance; 00222 int workaround_bugs; 00223 int codec_tag; 00224 int stream_codec_tag; 00225 /* the following fields are managed internally by the encoder */ 00226 00228 PutBitContext pb; 00229 00230 /* sequence parameters */ 00231 int context_initialized; 00232 int input_picture_number; 00233 int coded_picture_number; 00234 int picture_number; //FIXME remove, unclear definition 00235 int picture_in_gop_number; 00236 int b_frames_since_non_b; 00237 int64_t user_specified_pts; 00238 int mb_width, mb_height; 00239 int mb_stride; 00240 int b8_stride; 00241 int b4_stride; 00242 int h_edge_pos, v_edge_pos; 00243 int mb_num; 00244 int linesize; 00245 int uvlinesize; 00246 Picture *picture; 00247 Picture **input_picture; 00248 Picture **reordered_input_picture; 00249 00250 int start_mb_y; 00251 int end_mb_y; 00252 struct MpegEncContext *thread_context[MAX_THREADS]; 00253 00258 Picture last_picture; 00259 00264 Picture next_picture; 00265 00270 Picture new_picture; 00271 00276 Picture current_picture; 00277 00278 Picture *last_picture_ptr; 00279 Picture *next_picture_ptr; 00280 Picture *current_picture_ptr; 00281 uint8_t *visualization_buffer[3]; //< temporary buffer vor MV visualization 00282 int last_dc[3]; 00283 int16_t *dc_val_base; 00284 int16_t *dc_val[3]; 00285 int16_t dc_cache[4*5]; 00286 int y_dc_scale, c_dc_scale; 00287 const uint8_t *y_dc_scale_table; 00288 const uint8_t *c_dc_scale_table; 00289 const uint8_t *chroma_qscale_table; 00290 uint8_t *coded_block_base; 00291 uint8_t *coded_block; 00292 int16_t (*ac_val_base)[16]; 00293 int16_t (*ac_val[3])[16]; 00294 int ac_pred; 00295 uint8_t *prev_pict_types; 00296 #define PREV_PICT_TYPES_BUFFER_SIZE 256 00297 int mb_skipped; 00298 uint8_t *mbskip_table; 00300 uint8_t *mbintra_table; 00301 uint8_t *cbp_table; 00302 uint8_t *pred_dir_table; 00303 uint8_t *allocated_edge_emu_buffer; 00304 uint8_t *edge_emu_buffer; 00305 uint8_t *rd_scratchpad; 00306 uint8_t *obmc_scratchpad; 00307 uint8_t *b_scratchpad; 00308 00309 int qscale; 00310 int chroma_qscale; 00311 unsigned int lambda; 00312 unsigned int lambda2; 00313 int *lambda_table; 00314 int adaptive_quant; 00315 int dquant; 00316 int closed_gop; 00317 int pict_type; 00318 int last_pict_type; //FIXME removes 00319 int last_non_b_pict_type; 00320 int dropable; 00321 int frame_rate_index; 00322 int last_lambda_for[5]; 00323 int skipdct; 00324 00325 /* motion compensation */ 00326 int unrestricted_mv; 00327 int h263_long_vectors; 00328 int decode; 00329 00330 DSPContext dsp; 00331 int f_code; 00332 int b_code; 00333 int16_t (*p_mv_table_base)[2]; 00334 int16_t (*b_forw_mv_table_base)[2]; 00335 int16_t (*b_back_mv_table_base)[2]; 00336 int16_t (*b_bidir_forw_mv_table_base)[2]; 00337 int16_t (*b_bidir_back_mv_table_base)[2]; 00338 int16_t (*b_direct_mv_table_base)[2]; 00339 int16_t (*p_field_mv_table_base[2][2])[2]; 00340 int16_t (*b_field_mv_table_base[2][2][2])[2]; 00341 int16_t (*p_mv_table)[2]; 00342 int16_t (*b_forw_mv_table)[2]; 00343 int16_t (*b_back_mv_table)[2]; 00344 int16_t (*b_bidir_forw_mv_table)[2]; 00345 int16_t (*b_bidir_back_mv_table)[2]; 00346 int16_t (*b_direct_mv_table)[2]; 00347 int16_t (*p_field_mv_table[2][2])[2]; 00348 int16_t (*b_field_mv_table[2][2][2])[2]; 00349 uint8_t (*p_field_select_table[2]); 00350 uint8_t (*b_field_select_table[2][2]); 00351 int me_method; 00352 int mv_dir; 00353 #define MV_DIR_FORWARD 1 00354 #define MV_DIR_BACKWARD 2 00355 #define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4) 00356 int mv_type; 00357 #define MV_TYPE_16X16 0 ///< 1 vector for the whole mb 00358 #define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV) 00359 #define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block 00360 #define MV_TYPE_FIELD 3 ///< 2 vectors, one per field 00361 #define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors 00362 00367 int mv[2][4][2]; 00368 int field_select[2][2]; 00369 int last_mv[2][2][2]; 00370 uint8_t *fcode_tab; 00371 int16_t direct_scale_mv[2][64]; 00372 00373 MotionEstContext me; 00374 00375 int no_rounding; 00378 int hurry_up; 00381 /* macroblock layer */ 00382 int mb_x, mb_y; 00383 int mb_skip_run; 00384 int mb_intra; 00385 uint16_t *mb_type; 00386 #define CANDIDATE_MB_TYPE_INTRA 0x01 00387 #define CANDIDATE_MB_TYPE_INTER 0x02 00388 #define CANDIDATE_MB_TYPE_INTER4V 0x04 00389 #define CANDIDATE_MB_TYPE_SKIPPED 0x08 00390 //#define MB_TYPE_GMC 0x10 00391 00392 #define CANDIDATE_MB_TYPE_DIRECT 0x10 00393 #define CANDIDATE_MB_TYPE_FORWARD 0x20 00394 #define CANDIDATE_MB_TYPE_BACKWARD 0x40 00395 #define CANDIDATE_MB_TYPE_BIDIR 0x80 00396 00397 #define CANDIDATE_MB_TYPE_INTER_I 0x100 00398 #define CANDIDATE_MB_TYPE_FORWARD_I 0x200 00399 #define CANDIDATE_MB_TYPE_BACKWARD_I 0x400 00400 #define CANDIDATE_MB_TYPE_BIDIR_I 0x800 00401 00402 #define CANDIDATE_MB_TYPE_DIRECT0 0x1000 00403 00404 int block_index[6]; 00405 int block_wrap[6]; 00406 uint8_t *dest[3]; 00407 00408 int *mb_index2xy; 00409 00411 uint16_t intra_matrix[64]; 00412 uint16_t chroma_intra_matrix[64]; 00413 uint16_t inter_matrix[64]; 00414 uint16_t chroma_inter_matrix[64]; 00415 #define QUANT_BIAS_SHIFT 8 00416 int intra_quant_bias; 00417 int inter_quant_bias; 00418 int min_qcoeff; 00419 int max_qcoeff; 00420 int ac_esc_length; 00421 uint8_t *intra_ac_vlc_length; 00422 uint8_t *intra_ac_vlc_last_length; 00423 uint8_t *inter_ac_vlc_length; 00424 uint8_t *inter_ac_vlc_last_length; 00425 uint8_t *luma_dc_vlc_length; 00426 uint8_t *chroma_dc_vlc_length; 00427 #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level)) 00428 00429 int coded_score[8]; 00430 00432 int (*q_intra_matrix)[64]; 00433 int (*q_inter_matrix)[64]; 00435 uint16_t (*q_intra_matrix16)[2][64]; 00436 uint16_t (*q_inter_matrix16)[2][64]; 00437 int block_last_index[12]; 00438 /* scantables */ 00439 ScanTable intra_scantable; 00440 ScanTable intra_h_scantable; 00441 ScanTable intra_v_scantable; 00442 ScanTable inter_scantable; 00443 00444 /* noise reduction */ 00445 int (*dct_error_sum)[64]; 00446 int dct_count[2]; 00447 uint16_t (*dct_offset)[64]; 00448 00449 void *opaque; 00450 00451 /* bit rate control */ 00452 int64_t wanted_bits; 00453 int64_t total_bits; 00454 int frame_bits; 00455 int next_lambda; 00456 RateControlContext rc_context; 00457 00458 /* statistics, used for 2-pass encoding */ 00459 int mv_bits; 00460 int header_bits; 00461 int i_tex_bits; 00462 int p_tex_bits; 00463 int i_count; 00464 int f_count; 00465 int b_count; 00466 int skip_count; 00467 int misc_bits; 00468 int last_bits; 00469 00470 /* error concealment / resync */ 00471 int error_count; 00472 uint8_t *error_status_table; 00473 #define VP_START 1 ///< current MB is the first after a resync marker 00474 #define AC_ERROR 2 00475 #define DC_ERROR 4 00476 #define MV_ERROR 8 00477 #define AC_END 16 00478 #define DC_END 32 00479 #define MV_END 64 00480 //FIXME some prefix? 00481 00482 int resync_mb_x; 00483 int resync_mb_y; 00484 GetBitContext last_resync_gb; 00485 int mb_num_left; 00486 int next_p_frame_damaged; 00487 int error_recognition; 00488 00489 ParseContext parse_context; 00490 00491 /* H.263 specific */ 00492 int gob_index; 00493 int obmc; 00494 int showed_packed_warning; 00495 00496 /* H.263+ specific */ 00497 int umvplus; 00498 int h263_aic; 00499 int h263_aic_dir; 00500 int h263_slice_structured; 00501 int alt_inter_vlc; 00502 int modified_quant; 00503 int loop_filter; 00504 int custom_pcf; 00505 00506 /* mpeg4 specific */ 00507 int time_increment_bits; 00508 int last_time_base; 00509 int time_base; 00510 int64_t time; 00511 int64_t last_non_b_time; 00512 uint16_t pp_time; 00513 uint16_t pb_time; 00514 uint16_t pp_field_time; 00515 uint16_t pb_field_time; 00516 int shape; 00517 int vol_sprite_usage; 00518 int sprite_width; 00519 int sprite_height; 00520 int sprite_left; 00521 int sprite_top; 00522 int sprite_brightness_change; 00523 int num_sprite_warping_points; 00524 int real_sprite_warping_points; 00525 uint16_t sprite_traj[4][2]; 00526 int sprite_offset[2][2]; 00527 int sprite_delta[2][2]; 00528 int sprite_shift[2]; 00529 int mcsel; 00530 int quant_precision; 00531 int quarter_sample; 00532 int scalability; 00533 int hierachy_type; 00534 int enhancement_type; 00535 int new_pred; 00536 int reduced_res_vop; 00537 int aspect_ratio_info; //FIXME remove 00538 int sprite_warping_accuracy; 00539 int low_latency_sprite; 00540 int data_partitioning; 00541 int partitioned_frame; 00542 int rvlc; 00543 int resync_marker; 00544 int low_delay; 00545 int vo_type; 00546 int vol_control_parameters; 00547 int intra_dc_threshold; 00548 int use_intra_dc_vlc; 00549 PutBitContext tex_pb; 00550 PutBitContext pb2; 00551 int mpeg_quant; 00552 int t_frame; 00553 int padding_bug_score; 00554 int cplx_estimation_trash_i; 00555 int cplx_estimation_trash_p; 00556 int cplx_estimation_trash_b; 00557 00558 /* divx specific, used to workaround (many) bugs in divx5 */ 00559 int divx_version; 00560 int divx_build; 00561 int divx_packed; 00562 uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them 00563 int bitstream_buffer_size; 00564 unsigned int allocated_bitstream_buffer_size; 00565 00566 int xvid_build; 00567 00568 /* lavc specific stuff, used to workaround bugs in libavcodec */ 00569 int lavc_build; 00570 00571 /* RV10 specific */ 00572 int rv10_version; 00573 int rv10_first_dc_coded[3]; 00574 int orig_width, orig_height; 00575 00576 /* MJPEG specific */ 00577 struct MJpegContext *mjpeg_ctx; 00578 int mjpeg_vsample[3]; 00579 int mjpeg_hsample[3]; 00580 00581 /* MSMPEG4 specific */ 00582 int mv_table_index; 00583 int rl_table_index; 00584 int rl_chroma_table_index; 00585 int dc_table_index; 00586 int use_skip_mb_code; 00587 int slice_height; 00588 int first_slice_line; 00589 int flipflop_rounding; 00590 int msmpeg4_version; 00591 int per_mb_rl_table; 00592 int esc3_level_length; 00593 int esc3_run_length; 00595 int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2]; 00596 int inter_intra_pred; 00597 int mspel; 00598 00599 /* decompression specific */ 00600 GetBitContext gb; 00601 00602 /* Mpeg1 specific */ 00603 int gop_picture_number; 00604 int last_mv_dir; 00605 int broken_link; 00606 uint8_t *vbv_delay_ptr; 00607 00608 /* MPEG-2-specific - I wished not to have to support this mess. */ 00609 int progressive_sequence; 00610 int mpeg_f_code[2][2]; 00611 int picture_structure; 00612 /* picture type */ 00613 #define PICT_TOP_FIELD 1 00614 #define PICT_BOTTOM_FIELD 2 00615 #define PICT_FRAME 3 00616 00617 int intra_dc_precision; 00618 int frame_pred_frame_dct; 00619 int top_field_first; 00620 int concealment_motion_vectors; 00621 int q_scale_type; 00622 int intra_vlc_format; 00623 int alternate_scan; 00624 int repeat_first_field; 00625 int chroma_420_type; 00626 int chroma_format; 00627 #define CHROMA_420 1 00628 #define CHROMA_422 2 00629 #define CHROMA_444 3 00630 int chroma_x_shift;//depend on pix_format, that depend on chroma_format 00631 int chroma_y_shift; 00632 00633 int progressive_frame; 00634 int full_pel[2]; 00635 int interlaced_dct; 00636 int first_slice; 00637 int first_field; 00638 00639 /* RTP specific */ 00640 int rtp_mode; 00641 00642 uint8_t *ptr_lastgob; 00643 int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped 00644 DCTELEM (*pblocks[12])[64]; 00645 00646 DCTELEM (*block)[64]; 00647 DCTELEM (*blocks)[8][64]; // for HQ mode we need to keep the best block 00648 int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch() 00649 #define SLICE_OK 0 00650 #define SLICE_ERROR -1 00651 #define SLICE_END -2 ///<end marker found 00652 #define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded 00653 00654 void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, 00655 DCTELEM *block/*align 16*/, int n, int qscale); 00656 void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, 00657 DCTELEM *block/*align 16*/, int n, int qscale); 00658 void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, 00659 DCTELEM *block/*align 16*/, int n, int qscale); 00660 void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, 00661 DCTELEM *block/*align 16*/, int n, int qscale); 00662 void (*dct_unquantize_h263_intra)(struct MpegEncContext *s, 00663 DCTELEM *block/*align 16*/, int n, int qscale); 00664 void (*dct_unquantize_h263_inter)(struct MpegEncContext *s, 00665 DCTELEM *block/*align 16*/, int n, int qscale); 00666 void (*dct_unquantize_h261_intra)(struct MpegEncContext *s, 00667 DCTELEM *block/*align 16*/, int n, int qscale); 00668 void (*dct_unquantize_h261_inter)(struct MpegEncContext *s, 00669 DCTELEM *block/*align 16*/, int n, int qscale); 00670 void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both) 00671 DCTELEM *block/*align 16*/, int n, int qscale); 00672 void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both) 00673 DCTELEM *block/*align 16*/, int n, int qscale); 00674 int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow); 00675 int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow); 00676 void (*denoise_dct)(struct MpegEncContext *s, DCTELEM *block); 00677 } MpegEncContext; 00678 00679 00680 void MPV_decode_defaults(MpegEncContext *s); 00681 int MPV_common_init(MpegEncContext *s); 00682 void MPV_common_end(MpegEncContext *s); 00683 void MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]); 00684 int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx); 00685 void MPV_frame_end(MpegEncContext *s); 00686 int MPV_encode_init(AVCodecContext *avctx); 00687 int MPV_encode_end(AVCodecContext *avctx); 00688 int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data); 00689 void MPV_common_init_mmx(MpegEncContext *s); 00690 void MPV_common_init_axp(MpegEncContext *s); 00691 void MPV_common_init_mlib(MpegEncContext *s); 00692 void MPV_common_init_mmi(MpegEncContext *s); 00693 void MPV_common_init_arm(MpegEncContext *s); 00694 void MPV_common_init_altivec(MpegEncContext *s); 00695 void MPV_common_init_bfin(MpegEncContext *s); 00696 void ff_clean_intra_table_entries(MpegEncContext *s); 00697 void ff_draw_horiz_band(MpegEncContext *s, int y, int h); 00698 void ff_mpeg_flush(AVCodecContext *avctx); 00699 void ff_print_debug_info(MpegEncContext *s, AVFrame *pict); 00700 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix); 00701 int ff_find_unused_picture(MpegEncContext *s, int shared); 00702 void ff_denoise_dct(MpegEncContext *s, DCTELEM *block); 00703 void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src); 00704 const uint8_t *ff_find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state); 00705 void ff_set_qscale(MpegEncContext * s, int qscale); 00706 00707 void ff_er_frame_start(MpegEncContext *s); 00708 void ff_er_frame_end(MpegEncContext *s); 00709 void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status); 00710 00711 int ff_dct_common_init(MpegEncContext *s); 00712 void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64], 00713 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra); 00714 00715 void ff_init_block_index(MpegEncContext *s); 00716 void ff_copy_picture(Picture *dst, Picture *src); 00717 00722 int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared); 00723 00724 extern const enum PixelFormat ff_pixfmt_list_420[]; 00725 extern const enum PixelFormat ff_hwaccel_pixfmt_list_420[]; 00726 00727 static inline void ff_update_block_index(MpegEncContext *s){ 00728 const int block_size= 8>>s->avctx->lowres; 00729 00730 s->block_index[0]+=2; 00731 s->block_index[1]+=2; 00732 s->block_index[2]+=2; 00733 s->block_index[3]+=2; 00734 s->block_index[4]++; 00735 s->block_index[5]++; 00736 s->dest[0]+= 2*block_size; 00737 s->dest[1]+= block_size; 00738 s->dest[2]+= block_size; 00739 } 00740 00741 static inline int get_bits_diff(MpegEncContext *s){ 00742 const int bits= put_bits_count(&s->pb); 00743 const int last= s->last_bits; 00744 00745 s->last_bits = bits; 00746 00747 return bits - last; 00748 } 00749 00750 static inline int ff_h263_round_chroma(int x){ 00751 static const uint8_t h263_chroma_roundtab[16] = { 00752 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 00753 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 00754 }; 00755 return h263_chroma_roundtab[x & 0xf] + (x >> 3); 00756 } 00757 00758 /* motion_est.c */ 00759 void ff_estimate_p_frame_motion(MpegEncContext * s, 00760 int mb_x, int mb_y); 00761 void ff_estimate_b_frame_motion(MpegEncContext * s, 00762 int mb_x, int mb_y); 00763 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type); 00764 void ff_fix_long_p_mvs(MpegEncContext * s); 00765 void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select, 00766 int16_t (*mv_table)[2], int f_code, int type, int truncate); 00767 int ff_init_me(MpegEncContext *s); 00768 int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y); 00769 int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr, 00770 int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2], 00771 int ref_mv_scale, int size, int h); 00772 int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index, 00773 int ref_index, int size, int h, int add_rate); 00774 00775 /* mpeg12.c */ 00776 extern const uint8_t ff_mpeg1_dc_scale_table[128]; 00777 extern const uint8_t * const ff_mpeg2_dc_scale_table[4]; 00778 00779 void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number); 00780 void mpeg1_encode_mb(MpegEncContext *s, 00781 DCTELEM block[6][64], 00782 int motion_x, int motion_y); 00783 void ff_mpeg1_encode_init(MpegEncContext *s); 00784 void ff_mpeg1_encode_slice_header(MpegEncContext *s); 00785 void ff_mpeg1_clean_buffers(MpegEncContext *s); 00786 int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s); 00787 00788 extern const uint8_t ff_aic_dc_scale_table[32]; 00789 extern const uint8_t ff_h263_chroma_qscale_table[32]; 00790 extern const uint8_t ff_h263_loop_filter_strength[32]; 00791 00792 /* h261.c */ 00793 void ff_h261_loop_filter(MpegEncContext *s); 00794 void ff_h261_reorder_mb_index(MpegEncContext* s); 00795 void ff_h261_encode_mb(MpegEncContext *s, 00796 DCTELEM block[6][64], 00797 int motion_x, int motion_y); 00798 void ff_h261_encode_picture_header(MpegEncContext * s, int picture_number); 00799 void ff_h261_encode_init(MpegEncContext *s); 00800 int ff_h261_get_picture_format(int width, int height); 00801 00802 00803 /* rv10.c */ 00804 void rv10_encode_picture_header(MpegEncContext *s, int picture_number); 00805 int rv_decode_dc(MpegEncContext *s, int n); 00806 void rv20_encode_picture_header(MpegEncContext *s, int picture_number); 00807 00808 00809 /* msmpeg4.c */ 00810 void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number); 00811 void msmpeg4_encode_ext_header(MpegEncContext * s); 00812 void msmpeg4_encode_mb(MpegEncContext * s, 00813 DCTELEM block[6][64], 00814 int motion_x, int motion_y); 00815 int msmpeg4_decode_picture_header(MpegEncContext * s); 00816 int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size); 00817 int ff_msmpeg4_decode_init(AVCodecContext *avctx); 00818 void ff_msmpeg4_encode_init(MpegEncContext *s); 00819 int ff_wmv2_decode_picture_header(MpegEncContext * s); 00820 int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s); 00821 void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr); 00822 void ff_mspel_motion(MpegEncContext *s, 00823 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, 00824 uint8_t **ref_picture, op_pixels_func (*pix_op)[4], 00825 int motion_x, int motion_y, int h); 00826 int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number); 00827 void ff_wmv2_encode_mb(MpegEncContext * s, 00828 DCTELEM block[6][64], 00829 int motion_x, int motion_y); 00830 00831 #endif /* AVCODEC_MPEGVIDEO_H */ 00832