| /* |
| * Generic DCT based hybrid video encoder |
| * Copyright (c) 2000, 2001, 2002 Fabrice Bellard |
| * Copyright (c) 2002-2004 Michael Niedermayer |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /** |
| * @file libavcodec/mpegvideo.h |
| * mpegvideo header. |
| */ |
| |
| #ifndef AVCODEC_MPEGVIDEO_H |
| #define AVCODEC_MPEGVIDEO_H |
| |
| #include "dsputil.h" |
| #include "bitstream.h" |
| #include "ratecontrol.h" |
| #include "parser.h" |
| #include "mpeg12data.h" |
| #include "rl.h" |
| |
| #define FRAME_SKIPPED 100 ///< return value for header parsers if frame is not coded |
| |
| enum OutputFormat { |
| FMT_MPEG1, |
| FMT_H261, |
| FMT_H263, |
| FMT_MJPEG, |
| FMT_H264, |
| }; |
| |
| #define MPEG_BUF_SIZE (16 * 1024) |
| |
| #define QMAT_SHIFT_MMX 16 |
| #define QMAT_SHIFT 22 |
| |
| #define MAX_FCODE 7 |
| #define MAX_MV 2048 |
| |
| #define MAX_THREADS 8 |
| |
| #define MAX_PICTURE_COUNT 32 |
| |
| #define ME_MAP_SIZE 64 |
| #define ME_MAP_SHIFT 3 |
| #define ME_MAP_MV_BITS 11 |
| |
| #define MAX_MB_BYTES (30*16*16*3/8 + 120) |
| |
| #define INPLACE_OFFSET 16 |
| |
| /* Start codes. */ |
| #define SEQ_END_CODE 0x000001b7 |
| #define SEQ_START_CODE 0x000001b3 |
| #define GOP_START_CODE 0x000001b8 |
| #define PICTURE_START_CODE 0x00000100 |
| #define SLICE_MIN_START_CODE 0x00000101 |
| #define SLICE_MAX_START_CODE 0x000001af |
| #define EXT_START_CODE 0x000001b5 |
| #define USER_START_CODE 0x000001b2 |
| |
| /** |
| * Picture. |
| */ |
| typedef struct Picture{ |
| FF_COMMON_FRAME |
| |
| /** |
| * halfpel luma planes. |
| */ |
| uint8_t *interpolated[3]; |
| int16_t (*motion_val_base[2])[2]; |
| uint32_t *mb_type_base; |
| #define MB_TYPE_INTRA MB_TYPE_INTRA4x4 //default mb_type if there is just one type |
| #define IS_INTRA4x4(a) ((a)&MB_TYPE_INTRA4x4) |
| #define IS_INTRA16x16(a) ((a)&MB_TYPE_INTRA16x16) |
| #define IS_PCM(a) ((a)&MB_TYPE_INTRA_PCM) |
| #define IS_INTRA(a) ((a)&7) |
| #define IS_INTER(a) ((a)&(MB_TYPE_16x16|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8)) |
| #define IS_SKIP(a) ((a)&MB_TYPE_SKIP) |
| #define IS_INTRA_PCM(a) ((a)&MB_TYPE_INTRA_PCM) |
| #define IS_INTERLACED(a) ((a)&MB_TYPE_INTERLACED) |
| #define IS_DIRECT(a) ((a)&MB_TYPE_DIRECT2) |
| #define IS_GMC(a) ((a)&MB_TYPE_GMC) |
| #define IS_16X16(a) ((a)&MB_TYPE_16x16) |
| #define IS_16X8(a) ((a)&MB_TYPE_16x8) |
| #define IS_8X16(a) ((a)&MB_TYPE_8x16) |
| #define IS_8X8(a) ((a)&MB_TYPE_8x8) |
| #define IS_SUB_8X8(a) ((a)&MB_TYPE_16x16) //note reused |
| #define IS_SUB_8X4(a) ((a)&MB_TYPE_16x8) //note reused |
| #define IS_SUB_4X8(a) ((a)&MB_TYPE_8x16) //note reused |
| #define IS_SUB_4X4(a) ((a)&MB_TYPE_8x8) //note reused |
| #define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED) |
| #define IS_QUANT(a) ((a)&MB_TYPE_QUANT) |
| #define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list)))) |
| #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 |
| #define HAS_CBP(a) ((a)&MB_TYPE_CBP) |
| |
| int field_poc[2]; ///< h264 top/bottom POC |
| int poc; ///< h264 frame POC |
| int frame_num; ///< h264 frame_num (raw frame_num from slice header) |
| int pic_id; /**< h264 pic_num (short -> no wrap version of pic_num, |
| pic_num & max_pic_num; long -> long_pic_num) */ |
| int long_ref; ///< 1->long term reference 0->short term reference |
| int ref_poc[2][2][16]; ///< h264 POCs of the frames used as reference (FIXME need per slice) |
| int ref_count[2][2]; ///< number of entries in ref_poc (FIXME need per slice) |
| int mbaff; ///< h264 1 -> MBAFF frame 0-> not MBAFF |
| |
| int mb_var_sum; ///< sum of MB variance for current frame |
| int mc_mb_var_sum; ///< motion compensated MB variance for current frame |
| uint16_t *mb_var; ///< Table for MB variances |
| uint16_t *mc_mb_var; ///< Table for motion compensated MB variances |
| uint8_t *mb_mean; ///< Table for MB luminance |
| int32_t *mb_cmp_score; ///< Table for MB cmp scores, for mb decision FIXME remove |
| int b_frame_score; /* */ |
| } Picture; |
| |
| struct MpegEncContext; |
| |
| /** |
| * Motion estimation context. |
| */ |
| typedef struct MotionEstContext{ |
| AVCodecContext *avctx; |
| int skip; ///< set if ME is skipped for the current MB |
| int co_located_mv[4][2]; ///< mv from last P-frame for direct mode ME |
| int direct_basis_mv[4][2]; |
| uint8_t *scratchpad; ///< data area for the ME algo, so that the ME does not need to malloc/free |
| uint8_t *best_mb; |
| uint8_t *temp_mb[2]; |
| uint8_t *temp; |
| int best_bits; |
| uint32_t *map; ///< map to avoid duplicate evaluations |
| uint32_t *score_map; ///< map to store the scores |
| int map_generation; |
| int pre_penalty_factor; |
| int penalty_factor; /*!< an estimate of the bits required to |
| code a given mv value, e.g. (1,0) takes |
| more bits than (0,0). We have to |
| estimate whether any reduction in |
| residual is worth the extra bits. */ |
| int sub_penalty_factor; |
| int mb_penalty_factor; |
| int flags; |
| int sub_flags; |
| int mb_flags; |
| int pre_pass; ///< = 1 for the pre pass |
| int dia_size; |
| int xmin; |
| int xmax; |
| int ymin; |
| int ymax; |
| int pred_x; |
| int pred_y; |
| uint8_t *src[4][4]; |
| uint8_t *ref[4][4]; |
| int stride; |
| int uvstride; |
| /* temp variables for picture complexity calculation */ |
| int mc_mb_var_sum_temp; |
| int mb_var_sum_temp; |
| int scene_change_score; |
| /* cmp, chroma_cmp;*/ |
| op_pixels_func (*hpel_put)[4]; |
| op_pixels_func (*hpel_avg)[4]; |
| qpel_mc_func (*qpel_put)[16]; |
| qpel_mc_func (*qpel_avg)[16]; |
| uint8_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV |
| uint8_t *current_mv_penalty; |
| int (*sub_motion_search)(struct MpegEncContext * s, |
| int *mx_ptr, int *my_ptr, int dmin, |
| int src_index, int ref_index, |
| int size, int h); |
| }MotionEstContext; |
| |
| /** |
| * MpegEncContext. |
| */ |
| typedef struct MpegEncContext { |
| struct AVCodecContext *avctx; |
| /* the following parameters must be initialized before encoding */ |
| int width, height;///< picture size. must be a multiple of 16 |
| int gop_size; |
| int intra_only; ///< if true, only intra pictures are generated |
| int bit_rate; ///< wanted bit rate |
| enum OutputFormat out_format; ///< output format |
| int h263_pred; ///< use mpeg4/h263 ac/dc predictions |
| int pb_frame; ///< PB frame mode (0 = none, 1 = base, 2 = improved) |
| |
| /* the following codec id fields are deprecated in favor of codec_id */ |
| int h263_plus; ///< h263 plus headers |
| int h263_msmpeg4; ///< generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead) |
| int h263_flv; ///< use flv h263 header |
| |
| enum CodecID codec_id; /* see CODEC_ID_xxx */ |
| int fixed_qscale; ///< fixed qscale if non zero |
| int encoding; ///< true if we are encoding (vs decoding) |
| int flags; ///< AVCodecContext.flags (HQ, MV4, ...) |
| int flags2; ///< AVCodecContext.flags2 |
| int max_b_frames; ///< max number of b-frames for encoding |
| int luma_elim_threshold; |
| int chroma_elim_threshold; |
| int strict_std_compliance; ///< strictly follow the std (MPEG4, ...) |
| int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically |
| int codec_tag; ///< internal codec_tag upper case converted from avctx codec_tag |
| int stream_codec_tag; ///< internal stream_codec_tag upper case converted from avctx stream_codec_tag |
| /* the following fields are managed internally by the encoder */ |
| |
| /** bit output */ |
| PutBitContext pb; |
| |
| /* sequence parameters */ |
| int context_initialized; |
| int input_picture_number; ///< used to set pic->display_picture_number, should not be used for/by anything else |
| int coded_picture_number; ///< used to set pic->coded_picture_number, should not be used for/by anything else |
| int picture_number; //FIXME remove, unclear definition |
| int picture_in_gop_number; ///< 0-> first pic in gop, ... |
| int b_frames_since_non_b; ///< used for encoding, relative to not yet reordered input |
| int64_t user_specified_pts;///< last non zero pts from AVFrame which was passed into avcodec_encode_video() |
| int mb_width, mb_height; ///< number of MBs horizontally & vertically |
| int mb_stride; ///< mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 |
| int b8_stride; ///< 2*mb_width+1 used for some 8x8 block arrays to allow simple addressing |
| int b4_stride; ///< 4*mb_width+1 used for some 4x4 block arrays to allow simple addressing |
| int h_edge_pos, v_edge_pos;///< horizontal / vertical position of the right/bottom edge (pixel replication) |
| int mb_num; ///< number of MBs of a picture |
| int linesize; ///< line size, in bytes, may be different from width |
| int uvlinesize; ///< line size, for chroma in bytes, may be different from width |
| Picture *picture; ///< main picture buffer |
| Picture **input_picture; ///< next pictures on display order for encoding |
| Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding |
| |
| int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y) |
| int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y) |
| struct MpegEncContext *thread_context[MAX_THREADS]; |
| |
| /** |
| * copy of the previous picture structure. |
| * note, linesize & data, might not match the previous picture (for field pictures) |
| */ |
| Picture last_picture; |
| |
| /** |
| * copy of the next picture structure. |
| * note, linesize & data, might not match the next picture (for field pictures) |
| */ |
| Picture next_picture; |
| |
| /** |
| * copy of the source picture structure for encoding. |
| * note, linesize & data, might not match the source picture (for field pictures) |
| */ |
| Picture new_picture; |
| |
| /** |
| * copy of the current picture structure. |
| * note, linesize & data, might not match the current picture (for field pictures) |
| */ |
| Picture current_picture; ///< buffer to store the decompressed current picture |
| |
| Picture *last_picture_ptr; ///< pointer to the previous picture. |
| Picture *next_picture_ptr; ///< pointer to the next picture (for bidir pred) |
| Picture *current_picture_ptr; ///< pointer to the current picture |
| uint8_t *visualization_buffer[3]; //< temporary buffer vor MV visualization |
| int last_dc[3]; ///< last DC values for MPEG1 |
| int16_t *dc_val_base; |
| int16_t *dc_val[3]; ///< used for mpeg4 DC prediction, all 3 arrays must be continuous |
| int16_t dc_cache[4*5]; |
| int y_dc_scale, c_dc_scale; |
| const uint8_t *y_dc_scale_table; ///< qscale -> y_dc_scale table |
| const uint8_t *c_dc_scale_table; ///< qscale -> c_dc_scale table |
| const uint8_t *chroma_qscale_table; ///< qscale -> chroma_qscale (h263) |
| uint8_t *coded_block_base; |
| uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1) |
| int16_t (*ac_val_base)[16]; |
| int16_t (*ac_val[3])[16]; ///< used for for mpeg4 AC prediction, all 3 arrays must be continuous |
| int ac_pred; |
| uint8_t *prev_pict_types; ///< previous picture types in bitstream order, used for mb skip |
| #define PREV_PICT_TYPES_BUFFER_SIZE 256 |
| int mb_skipped; ///< MUST BE SET only during DECODING |
| uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example) |
| and used for b-frame encoding & decoding (contains skip table of next P Frame) */ |
| uint8_t *mbintra_table; ///< used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding |
| uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding |
| uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding |
| uint8_t *allocated_edge_emu_buffer; |
| uint8_t *edge_emu_buffer; ///< points into the middle of allocated_edge_emu_buffer |
| uint8_t *rd_scratchpad; ///< scratchpad for rate distortion mb decision |
| uint8_t *obmc_scratchpad; |
| uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers |
| |
| int qscale; ///< QP |
| int chroma_qscale; ///< chroma QP |
| unsigned int lambda; ///< lagrange multipler used in rate distortion |
| unsigned int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT |
| int *lambda_table; |
| int adaptive_quant; ///< use adaptive quantization |
| int dquant; ///< qscale difference to prev qscale |
| int pict_type; ///< FF_I_TYPE, FF_P_TYPE, FF_B_TYPE, ... |
| int last_pict_type; //FIXME removes |
| int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol |
| int dropable; |
| int frame_rate_index; |
| int last_lambda_for[5]; ///< last lambda for a specific pict type |
| int skipdct; ///< skip dct and code zero residual |
| |
| /* motion compensation */ |
| int unrestricted_mv; ///< mv can point outside of the coded picture |
| int h263_long_vectors; ///< use horrible h263v1 long vector mode |
| int decode; ///< if 0 then decoding will be skipped (for encoding b frames for example) |
| |
| DSPContext dsp; ///< pointers for accelerated dsp functions |
| int f_code; ///< forward MV resolution |
| int b_code; ///< backward MV resolution for B Frames (mpeg4) |
| int16_t (*p_mv_table_base)[2]; |
| int16_t (*b_forw_mv_table_base)[2]; |
| int16_t (*b_back_mv_table_base)[2]; |
| int16_t (*b_bidir_forw_mv_table_base)[2]; |
| int16_t (*b_bidir_back_mv_table_base)[2]; |
| int16_t (*b_direct_mv_table_base)[2]; |
| int16_t (*p_field_mv_table_base[2][2])[2]; |
| int16_t (*b_field_mv_table_base[2][2][2])[2]; |
| int16_t (*p_mv_table)[2]; ///< MV table (1MV per MB) p-frame encoding |
| int16_t (*b_forw_mv_table)[2]; ///< MV table (1MV per MB) forward mode b-frame encoding |
| int16_t (*b_back_mv_table)[2]; ///< MV table (1MV per MB) backward mode b-frame encoding |
| int16_t (*b_bidir_forw_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding |
| int16_t (*b_bidir_back_mv_table)[2]; ///< MV table (1MV per MB) bidir mode b-frame encoding |
| int16_t (*b_direct_mv_table)[2]; ///< MV table (1MV per MB) direct mode b-frame encoding |
| int16_t (*p_field_mv_table[2][2])[2]; ///< MV table (2MV per MB) interlaced p-frame encoding |
| int16_t (*b_field_mv_table[2][2][2])[2];///< MV table (4MV per MB) interlaced b-frame encoding |
| uint8_t (*p_field_select_table[2]); |
| uint8_t (*b_field_select_table[2][2]); |
| int me_method; ///< ME algorithm |
| int mv_dir; |
| #define MV_DIR_FORWARD 1 |
| #define MV_DIR_BACKWARD 2 |
| #define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4) |
| int mv_type; |
| #define MV_TYPE_16X16 0 ///< 1 vector for the whole mb |
| #define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV) |
| #define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block |
| #define MV_TYPE_FIELD 3 ///< 2 vectors, one per field |
| #define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors |
| /**motion vectors for a macroblock |
| first coordinate : 0 = forward 1 = backward |
| second " : depend on type |
| third " : 0 = x, 1 = y |
| */ |
| int mv[2][4][2]; |
| int field_select[2][2]; |
| int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4 |
| uint8_t *fcode_tab; ///< smallest fcode needed for each MV |
| int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv |
| |
| MotionEstContext me; |
| |
| int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...) |
| for b-frames rounding mode is always 0 */ |
| |
| int hurry_up; /**< when set to 1 during decoding, b frames will be skipped |
| when set to 2 idct/dequant will be skipped too */ |
| |
| /* macroblock layer */ |
| int mb_x, mb_y; |
| int mb_skip_run; |
| int mb_intra; |
| uint16_t *mb_type; ///< Table for candidate MB types for encoding |
| #define CANDIDATE_MB_TYPE_INTRA 0x01 |
| #define CANDIDATE_MB_TYPE_INTER 0x02 |
| #define CANDIDATE_MB_TYPE_INTER4V 0x04 |
| #define CANDIDATE_MB_TYPE_SKIPPED 0x08 |
| //#define MB_TYPE_GMC 0x10 |
| |
| #define CANDIDATE_MB_TYPE_DIRECT 0x10 |
| #define CANDIDATE_MB_TYPE_FORWARD 0x20 |
| #define CANDIDATE_MB_TYPE_BACKWARD 0x40 |
| #define CANDIDATE_MB_TYPE_BIDIR 0x80 |
| |
| #define CANDIDATE_MB_TYPE_INTER_I 0x100 |
| #define CANDIDATE_MB_TYPE_FORWARD_I 0x200 |
| #define CANDIDATE_MB_TYPE_BACKWARD_I 0x400 |
| #define CANDIDATE_MB_TYPE_BIDIR_I 0x800 |
| |
| #define CANDIDATE_MB_TYPE_DIRECT0 0x1000 |
| |
| int block_index[6]; ///< index to current MB in block based arrays with edges |
| int block_wrap[6]; |
| uint8_t *dest[3]; |
| |
| int *mb_index2xy; ///< mb_index -> mb_x + mb_y*mb_stride |
| |
| /** matrix transmitted in the bitstream */ |
| uint16_t intra_matrix[64]; |
| uint16_t chroma_intra_matrix[64]; |
| uint16_t inter_matrix[64]; |
| uint16_t chroma_inter_matrix[64]; |
| #define QUANT_BIAS_SHIFT 8 |
| int intra_quant_bias; ///< bias for the quantizer |
| int inter_quant_bias; ///< bias for the quantizer |
| int min_qcoeff; ///< minimum encodable coefficient |
| int max_qcoeff; ///< maximum encodable coefficient |
| int ac_esc_length; ///< num of bits needed to encode the longest esc |
| uint8_t *intra_ac_vlc_length; |
| uint8_t *intra_ac_vlc_last_length; |
| uint8_t *inter_ac_vlc_length; |
| uint8_t *inter_ac_vlc_last_length; |
| uint8_t *luma_dc_vlc_length; |
| uint8_t *chroma_dc_vlc_length; |
| #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level)) |
| |
| int coded_score[8]; |
| |
| /** precomputed matrix (combine qscale and DCT renorm) */ |
| int (*q_intra_matrix)[64]; |
| int (*q_inter_matrix)[64]; |
| /** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/ |
| uint16_t (*q_intra_matrix16)[2][64]; |
| uint16_t (*q_inter_matrix16)[2][64]; |
| int block_last_index[12]; ///< last non zero coefficient in block |
| /* scantables */ |
| DECLARE_ALIGNED_8(ScanTable, intra_scantable); |
| ScanTable intra_h_scantable; |
| ScanTable intra_v_scantable; |
| ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage |
| |
| /* noise reduction */ |
| int (*dct_error_sum)[64]; |
| int dct_count[2]; |
| uint16_t (*dct_offset)[64]; |
| |
| void *opaque; ///< private data for the user |
| |
| /* bit rate control */ |
| int64_t wanted_bits; |
| int64_t total_bits; |
| int frame_bits; ///< bits used for the current frame |
| int next_lambda; ///< next lambda used for retrying to encode a frame |
| RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c |
| |
| /* statistics, used for 2-pass encoding */ |
| int mv_bits; |
| int header_bits; |
| int i_tex_bits; |
| int p_tex_bits; |
| int i_count; |
| int f_count; |
| int b_count; |
| int skip_count; |
| int misc_bits; ///< cbp, mb_type |
| int last_bits; ///< temp var used for calculating the above vars |
| |
| /* error concealment / resync */ |
| int error_count; |
| uint8_t *error_status_table; ///< table of the error status of each MB |
| #define VP_START 1 ///< current MB is the first after a resync marker |
| #define AC_ERROR 2 |
| #define DC_ERROR 4 |
| #define MV_ERROR 8 |
| #define AC_END 16 |
| #define DC_END 32 |
| #define MV_END 64 |
| //FIXME some prefix? |
| |
| int resync_mb_x; ///< x position of last resync marker |
| int resync_mb_y; ///< y position of last resync marker |
| GetBitContext last_resync_gb; ///< used to search for the next resync marker |
| int mb_num_left; ///< number of MBs left in this video packet (for partitioned Slices only) |
| int next_p_frame_damaged; ///< set if the next p frame is damaged, to avoid showing trashed b frames |
| int error_recognition; |
| |
| ParseContext parse_context; |
| |
| /* H.263 specific */ |
| int gob_index; |
| int obmc; ///< overlapped block motion compensation |
| int showed_packed_warning; ///< flag for having shown the warning about divxs invalid b frames |
| |
| /* H.263+ specific */ |
| int umvplus; ///< == H263+ && unrestricted_mv |
| int h263_aic; ///< Advanded INTRA Coding (AIC) |
| int h263_aic_dir; ///< AIC direction: 0 = left, 1 = top |
| int h263_slice_structured; |
| int alt_inter_vlc; ///< alternative inter vlc |
| int modified_quant; |
| int loop_filter; |
| int custom_pcf; |
| |
| /* mpeg4 specific */ |
| int time_increment_bits; ///< number of bits to represent the fractional part of time |
| int last_time_base; |
| int time_base; ///< time in seconds of last I,P,S Frame |
| int64_t time; ///< time of current frame |
| int64_t last_non_b_time; |
| uint16_t pp_time; ///< time distance between the last 2 p,s,i frames |
| uint16_t pb_time; ///< time distance between the last b and p,s,i frame |
| uint16_t pp_field_time; |
| uint16_t pb_field_time; ///< like above, just for interlaced |
| int shape; |
| int vol_sprite_usage; |
| int sprite_width; |
| int sprite_height; |
| int sprite_left; |
| int sprite_top; |
| int sprite_brightness_change; |
| int num_sprite_warping_points; |
| int real_sprite_warping_points; |
| int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY] |
| int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY] |
| int sprite_shift[2]; ///< sprite shift [isChroma] |
| int mcsel; |
| int quant_precision; |
| int quarter_sample; ///< 1->qpel, 0->half pel ME/MC |
| int scalability; |
| int hierachy_type; |
| int enhancement_type; |
| int new_pred; |
| int reduced_res_vop; |
| int aspect_ratio_info; //FIXME remove |
| int sprite_warping_accuracy; |
| int low_latency_sprite; |
| int data_partitioning; ///< data partitioning flag from header |
| int partitioned_frame; ///< is current frame partitioned |
| int rvlc; ///< reversible vlc |
| int resync_marker; ///< could this stream contain resync markers |
| int low_delay; ///< no reordering needed / has no b-frames |
| int vo_type; |
| int vol_control_parameters; ///< does the stream contain the low_delay flag, used to workaround buggy encoders |
| int intra_dc_threshold; ///< QP above whch the ac VLC should be used for intra dc |
| int use_intra_dc_vlc; |
| PutBitContext tex_pb; ///< used for data partitioned VOPs |
| PutBitContext pb2; ///< used for data partitioned VOPs |
| int mpeg_quant; |
| int t_frame; ///< time distance of first I -> B, used for interlaced b frames |
| int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4 |
| int cplx_estimation_trash_i; |
| int cplx_estimation_trash_p; |
| int cplx_estimation_trash_b; |
| |
| /* divx specific, used to workaround (many) bugs in divx5 */ |
| int divx_version; |
| int divx_build; |
| int divx_packed; |
| uint8_t *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them |
| int bitstream_buffer_size; |
| unsigned int allocated_bitstream_buffer_size; |
| |
| int xvid_build; |
| |
| /* lavc specific stuff, used to workaround bugs in libavcodec */ |
| int lavc_build; |
| |
| /* RV10 specific */ |
| int rv10_version; ///< RV10 version: 0 or 3 |
| int rv10_first_dc_coded[3]; |
| |
| /* MJPEG specific */ |
| struct MJpegContext *mjpeg_ctx; |
| int mjpeg_vsample[3]; ///< vertical sampling factors, default = {2, 1, 1} |
| int mjpeg_hsample[3]; ///< horizontal sampling factors, default = {2, 1, 1} |
| |
| /* MSMPEG4 specific */ |
| int mv_table_index; |
| int rl_table_index; |
| int rl_chroma_table_index; |
| int dc_table_index; |
| int use_skip_mb_code; |
| int slice_height; ///< in macroblocks |
| int first_slice_line; ///< used in mpeg4 too to handle resync markers |
| int flipflop_rounding; |
| int msmpeg4_version; ///< 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8 |
| int per_mb_rl_table; |
| int esc3_level_length; |
| int esc3_run_length; |
| /** [mb_intra][isChroma][level][run][last] */ |
| int (*ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2]; |
| int inter_intra_pred; |
| int mspel; |
| |
| /* decompression specific */ |
| GetBitContext gb; |
| |
| /* Mpeg1 specific */ |
| int gop_picture_number; ///< index of the first picture of a GOP based on fake_pic_num & mpeg1 specific |
| int last_mv_dir; ///< last mv_dir, used for b frame encoding |
| int broken_link; ///< no_output_of_prior_pics_flag |
| uint8_t *vbv_delay_ptr; ///< pointer to vbv_delay in the bitstream |
| |
| /* MPEG-2-specific - I wished not to have to support this mess. */ |
| int progressive_sequence; |
| int mpeg_f_code[2][2]; |
| int picture_structure; |
| /* picture type */ |
| #define PICT_TOP_FIELD 1 |
| #define PICT_BOTTOM_FIELD 2 |
| #define PICT_FRAME 3 |
| |
| int intra_dc_precision; |
| int frame_pred_frame_dct; |
| int top_field_first; |
| int concealment_motion_vectors; |
| int q_scale_type; |
| int intra_vlc_format; |
| int alternate_scan; |
| int repeat_first_field; |
| int chroma_420_type; |
| int chroma_format; |
| #define CHROMA_420 1 |
| #define CHROMA_422 2 |
| #define CHROMA_444 3 |
| int chroma_x_shift;//depend on pix_format, that depend on chroma_format |
| int chroma_y_shift; |
| |
| int progressive_frame; |
| int full_pel[2]; |
| int interlaced_dct; |
| int first_slice; |
| int first_field; ///< is 1 for the first field of a field picture 0 otherwise |
| |
| /* RTP specific */ |
| int rtp_mode; |
| |
| uint8_t *ptr_lastgob; |
| int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped |
| DCTELEM (*pblocks[12])[64]; |
| |
| DCTELEM (*block)[64]; ///< points to one of the following blocks |
| DCTELEM (*blocks)[8][64]; // for HQ mode we need to keep the best block |
| int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch() |
| #define SLICE_OK 0 |
| #define SLICE_ERROR -1 |
| #define SLICE_END -2 ///<end marker found |
| #define SLICE_NOEND -3 ///<no end marker or error found but mb count exceeded |
| |
| void (*dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, |
| DCTELEM *block/*align 16*/, int n, int qscale); |
| void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, |
| DCTELEM *block/*align 16*/, int n, int qscale); |
| void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, |
| DCTELEM *block/*align 16*/, int n, int qscale); |
| void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, |
| DCTELEM *block/*align 16*/, int n, int qscale); |
| void (*dct_unquantize_h263_intra)(struct MpegEncContext *s, |
| DCTELEM *block/*align 16*/, int n, int qscale); |
| void (*dct_unquantize_h263_inter)(struct MpegEncContext *s, |
| DCTELEM *block/*align 16*/, int n, int qscale); |
| void (*dct_unquantize_h261_intra)(struct MpegEncContext *s, |
| DCTELEM *block/*align 16*/, int n, int qscale); |
| void (*dct_unquantize_h261_inter)(struct MpegEncContext *s, |
| DCTELEM *block/*align 16*/, int n, int qscale); |
| void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both) |
| DCTELEM *block/*align 16*/, int n, int qscale); |
| void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both) |
| DCTELEM *block/*align 16*/, int n, int qscale); |
| int (*dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow); |
| int (*fast_dct_quantize)(struct MpegEncContext *s, DCTELEM *block/*align 16*/, int n, int qscale, int *overflow); |
| void (*denoise_dct)(struct MpegEncContext *s, DCTELEM *block); |
| } MpegEncContext; |
| |
| |
| void MPV_decode_defaults(MpegEncContext *s); |
| int MPV_common_init(MpegEncContext *s); |
| void MPV_common_end(MpegEncContext *s); |
| void MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]); |
| int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx); |
| void MPV_frame_end(MpegEncContext *s); |
| int MPV_encode_init(AVCodecContext *avctx); |
| int MPV_encode_end(AVCodecContext *avctx); |
| int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data); |
| void MPV_common_init_mmx(MpegEncContext *s); |
| void MPV_common_init_axp(MpegEncContext *s); |
| void MPV_common_init_mlib(MpegEncContext *s); |
| void MPV_common_init_mmi(MpegEncContext *s); |
| void MPV_common_init_arm(MpegEncContext *s); |
| void MPV_common_init_altivec(MpegEncContext *s); |
| void ff_clean_intra_table_entries(MpegEncContext *s); |
| void ff_draw_horiz_band(MpegEncContext *s, int y, int h); |
| void ff_mpeg_flush(AVCodecContext *avctx); |
| void ff_print_debug_info(MpegEncContext *s, AVFrame *pict); |
| void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix); |
| int ff_find_unused_picture(MpegEncContext *s, int shared); |
| void ff_denoise_dct(MpegEncContext *s, DCTELEM *block); |
| void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src); |
| const uint8_t *ff_find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state); |
| |
| void ff_er_frame_start(MpegEncContext *s); |
| void ff_er_frame_end(MpegEncContext *s); |
| void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status); |
| |
| int ff_dct_common_init(MpegEncContext *s); |
| void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64], |
| const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra); |
| |
| void ff_init_block_index(MpegEncContext *s); |
| void ff_copy_picture(Picture *dst, Picture *src); |
| |
| extern const enum PixelFormat ff_pixfmt_list_420[]; |
| extern const enum PixelFormat ff_hwaccel_pixfmt_list_420[]; |
| |
| static inline void ff_update_block_index(MpegEncContext *s){ |
| const int block_size= 8>>s->avctx->lowres; |
| |
| s->block_index[0]+=2; |
| s->block_index[1]+=2; |
| s->block_index[2]+=2; |
| s->block_index[3]+=2; |
| s->block_index[4]++; |
| s->block_index[5]++; |
| s->dest[0]+= 2*block_size; |
| s->dest[1]+= block_size; |
| s->dest[2]+= block_size; |
| } |
| |
| static inline int get_bits_diff(MpegEncContext *s){ |
| const int bits= put_bits_count(&s->pb); |
| const int last= s->last_bits; |
| |
| s->last_bits = bits; |
| |
| return bits - last; |
| } |
| |
| static inline int ff_h263_round_chroma(int x){ |
| static const uint8_t h263_chroma_roundtab[16] = { |
| // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 |
| 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, |
| }; |
| return h263_chroma_roundtab[x & 0xf] + (x >> 3); |
| } |
| |
| /* motion_est.c */ |
| void ff_estimate_p_frame_motion(MpegEncContext * s, |
| int mb_x, int mb_y); |
| void ff_estimate_b_frame_motion(MpegEncContext * s, |
| int mb_x, int mb_y); |
| int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type); |
| void ff_fix_long_p_mvs(MpegEncContext * s); |
| void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select, |
| int16_t (*mv_table)[2], int f_code, int type, int truncate); |
| int ff_init_me(MpegEncContext *s); |
| int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y); |
| int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr, |
| int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2], |
| int ref_mv_scale, int size, int h); |
| int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index, |
| int ref_index, int size, int h, int add_rate); |
| |
| /* mpeg12.c */ |
| extern const uint8_t ff_mpeg1_dc_scale_table[128]; |
| |
| void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number); |
| void mpeg1_encode_mb(MpegEncContext *s, |
| DCTELEM block[6][64], |
| int motion_x, int motion_y); |
| void ff_mpeg1_encode_init(MpegEncContext *s); |
| void ff_mpeg1_encode_slice_header(MpegEncContext *s); |
| void ff_mpeg1_clean_buffers(MpegEncContext *s); |
| int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s); |
| |
| extern const uint8_t ff_mpeg4_y_dc_scale_table[32]; |
| extern const uint8_t ff_mpeg4_c_dc_scale_table[32]; |
| extern const uint8_t ff_aic_dc_scale_table[32]; |
| extern const int16_t ff_mpeg4_default_intra_matrix[64]; |
| extern const int16_t ff_mpeg4_default_non_intra_matrix[64]; |
| extern const uint8_t ff_h263_chroma_qscale_table[32]; |
| extern const uint8_t ff_h263_loop_filter_strength[32]; |
| |
| /* h261.c */ |
| void ff_h261_loop_filter(MpegEncContext *s); |
| void ff_h261_reorder_mb_index(MpegEncContext* s); |
| void ff_h261_encode_mb(MpegEncContext *s, |
| DCTELEM block[6][64], |
| int motion_x, int motion_y); |
| void ff_h261_encode_picture_header(MpegEncContext * s, int picture_number); |
| void ff_h261_encode_init(MpegEncContext *s); |
| int ff_h261_get_picture_format(int width, int height); |
| |
| |
| /* h263.c, h263dec.c */ |
| int ff_h263_decode_init(AVCodecContext *avctx); |
| int ff_h263_decode_frame(AVCodecContext *avctx, |
| void *data, int *data_size, |
| const uint8_t *buf, int buf_size); |
| int ff_h263_decode_end(AVCodecContext *avctx); |
| void h263_encode_mb(MpegEncContext *s, |
| DCTELEM block[6][64], |
| int motion_x, int motion_y); |
| void mpeg4_encode_mb(MpegEncContext *s, |
| DCTELEM block[6][64], |
| int motion_x, int motion_y); |
| void h263_encode_picture_header(MpegEncContext *s, int picture_number); |
| void ff_flv_encode_picture_header(MpegEncContext *s, int picture_number); |
| void h263_encode_gob_header(MpegEncContext * s, int mb_line); |
| int16_t *h263_pred_motion(MpegEncContext * s, int block, int dir, |
| int *px, int *py); |
| void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n, |
| int dir); |
| void ff_set_mpeg4_time(MpegEncContext * s); |
| void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number); |
| void h263_encode_init(MpegEncContext *s); |
| void h263_decode_init_vlc(MpegEncContext *s); |
| int h263_decode_picture_header(MpegEncContext *s); |
| int ff_h263_decode_gob_header(MpegEncContext *s); |
| int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb); |
| void ff_h263_update_motion_val(MpegEncContext * s); |
| void ff_h263_loop_filter(MpegEncContext * s); |
| void ff_set_qscale(MpegEncContext * s, int qscale); |
| int ff_h263_decode_mba(MpegEncContext *s); |
| void ff_h263_encode_mba(MpegEncContext *s); |
| |
| int intel_h263_decode_picture_header(MpegEncContext *s); |
| int flv_h263_decode_picture_header(MpegEncContext *s); |
| int ff_h263_decode_mb(MpegEncContext *s, |
| DCTELEM block[6][64]); |
| int ff_mpeg4_decode_mb(MpegEncContext *s, |
| DCTELEM block[6][64]); |
| int h263_get_picture_format(int width, int height); |
| void ff_mpeg4_encode_video_packet_header(MpegEncContext *s); |
| void ff_mpeg4_clean_buffers(MpegEncContext *s); |
| void ff_mpeg4_stuffing(PutBitContext * pbc); |
| void ff_mpeg4_init_partitions(MpegEncContext *s); |
| void ff_mpeg4_merge_partitions(MpegEncContext *s); |
| void ff_clean_mpeg4_qscales(MpegEncContext *s); |
| void ff_clean_h263_qscales(MpegEncContext *s); |
| int ff_mpeg4_decode_partitions(MpegEncContext *s); |
| int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s); |
| int ff_h263_resync(MpegEncContext *s); |
| const uint8_t *ff_h263_find_resync_marker(const uint8_t *p, const uint8_t *end); |
| int ff_h263_get_gob_height(MpegEncContext *s); |
| void ff_mpeg4_init_direct_mv(MpegEncContext *s); |
| int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my); |
| void ff_h263_encode_motion(MpegEncContext * s, int val, int f_code); |
| |
| |
| /* rv10.c */ |
| void rv10_encode_picture_header(MpegEncContext *s, int picture_number); |
| int rv_decode_dc(MpegEncContext *s, int n); |
| void rv20_encode_picture_header(MpegEncContext *s, int picture_number); |
| |
| |
| /* msmpeg4.c */ |
| void msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number); |
| void msmpeg4_encode_ext_header(MpegEncContext * s); |
| void msmpeg4_encode_mb(MpegEncContext * s, |
| DCTELEM block[6][64], |
| int motion_x, int motion_y); |
| int msmpeg4_decode_picture_header(MpegEncContext * s); |
| int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size); |
| int ff_msmpeg4_decode_init(MpegEncContext *s); |
| void ff_msmpeg4_encode_init(MpegEncContext *s); |
| int ff_wmv2_decode_picture_header(MpegEncContext * s); |
| int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s); |
| void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr); |
| void ff_mspel_motion(MpegEncContext *s, |
| uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
| uint8_t **ref_picture, op_pixels_func (*pix_op)[4], |
| int motion_x, int motion_y, int h); |
| int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number); |
| void ff_wmv2_encode_mb(MpegEncContext * s, |
| DCTELEM block[6][64], |
| int motion_x, int motion_y); |
| |
| #endif /* AVCODEC_MPEGVIDEO_H */ |
| |
