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Diffstat (limited to 'src/libffmpeg/libavcodec/mpegvideo.h')
| -rw-r--r-- | src/libffmpeg/libavcodec/mpegvideo.h | 931 |
1 files changed, 0 insertions, 931 deletions
diff --git a/src/libffmpeg/libavcodec/mpegvideo.h b/src/libffmpeg/libavcodec/mpegvideo.h deleted file mode 100644 index ed02759ae..000000000 --- a/src/libffmpeg/libavcodec/mpegvideo.h +++ /dev/null @@ -1,931 +0,0 @@ -/* - * 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 mpegvideo.h - * mpegvideo header. - */ - -#ifndef AVCODEC_MPEGVIDEO_H -#define AVCODEC_MPEGVIDEO_H - -#include "dsputil.h" -#include "bitstream.h" -#include "ratecontrol.h" -#include "parser.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 EDGE_WIDTH 16 - -#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 - -/* run length table */ -#define MAX_RUN 64 -#define MAX_LEVEL 64 - -#define I_TYPE FF_I_TYPE ///< Intra -#define P_TYPE FF_P_TYPE ///< Predicted -#define B_TYPE FF_B_TYPE ///< Bi-dir predicted -#define S_TYPE FF_S_TYPE ///< S(GMC)-VOP MPEG4 -#define SI_TYPE FF_SI_TYPE ///< Switching Intra -#define SP_TYPE FF_SP_TYPE ///< Switching Predicted - -#define MAX_MB_BYTES (30*16*16*3/8 + 120) - -#define INPLACE_OFFSET 16 - -/** - * Scantable. - */ -typedef struct ScanTable{ - const uint8_t *scantable; - uint8_t permutated[64]; - uint8_t raster_end[64]; -#ifdef ARCH_POWERPC - /** Used by dct_quantise_alitvec to find last-non-zero */ - DECLARE_ALIGNED_8(uint8_t, inverse[64]); -#endif -} ScanTable; - -/** - * 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 theres 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 doesnt 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 - int pic_id; ///< h264 pic_num or long_term_pic_idx - int long_ref; ///< 1->long term reference 0->short term reference - int ref_poc[2][16]; ///< h264 POCs of the frames used as reference - int ref_count[2]; ///< number of entries in ref_poc - - 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 doesnt 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; - 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 - -/* 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, shouldnt be used for/by anything else - int coded_picture_number; ///< used to set pic->coded_picture_number, shouldnt 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; ///< I_TYPE, P_TYPE, 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_BACKWARD 1 -#define MV_DIR_FORWARD 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 allways 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_resilience; - - ParseContext parse_context; - - /* H.263 specific */ - int gob_index; - int obmc; ///< overlapped block motion compensation - - /* 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 - - /* 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} - int mjpeg_write_tables; ///< do we want to have quantisation- and huffmantables in the jpeg file ? - int mjpeg_data_only_frames; ///< frames only with SOI, SOS and EOI markers - - /* 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 - - /* MPEG2 specific - I wish I had not 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 mpeg2 varint with UV swaped - short * pblocks[12]; - - 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; - - -int DCT_common_init(MpegEncContext *s); -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); -#ifdef HAVE_MMX -void MPV_common_init_mmx(MpegEncContext *s); -#endif -#ifdef ARCH_ALPHA -void MPV_common_init_axp(MpegEncContext *s); -#endif -#ifdef HAVE_MLIB -void MPV_common_init_mlib(MpegEncContext *s); -#endif -#ifdef HAVE_MMI -void MPV_common_init_mmi(MpegEncContext *s); -#endif -#ifdef ARCH_ARMV4L -void MPV_common_init_armv4l(MpegEncContext *s); -#endif -#ifdef ARCH_POWERPC -void MPV_common_init_ppc(MpegEncContext *s); -#endif -extern void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w); -void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length); -void ff_clean_intra_table_entries(MpegEncContext *s); -void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable); -void ff_draw_horiz_band(MpegEncContext *s, int y, int h); -void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize, int block_w, int block_h, - int src_x, int src_y, int w, 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); - - -extern enum PixelFormat ff_yuv420p_list[2]; - -void ff_init_block_index(MpegEncContext *s); - -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; -} - -/* 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); -void ff_init_me(MpegEncContext *s); -int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y); -inline 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); -inline 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 uint16_t ff_mpeg1_default_intra_matrix[64]; -extern const uint16_t ff_mpeg1_default_non_intra_matrix[64]; -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); - - -/** RLTable. */ -typedef struct RLTable { - int n; ///< number of entries of table_vlc minus 1 - int last; ///< number of values for last = 0 - const uint16_t (*table_vlc)[2]; - const int8_t *table_run; - const int8_t *table_level; - uint8_t *index_run[2]; ///< encoding only - int8_t *max_level[2]; ///< encoding & decoding - int8_t *max_run[2]; ///< encoding & decoding - VLC vlc; ///< decoding only deprected FIXME remove - RL_VLC_ELEM *rl_vlc[32]; ///< decoding only -} RLTable; - -void init_rl(RLTable *rl, int use_static); -void init_vlc_rl(RLTable *rl, int use_static); - -static inline int get_rl_index(const RLTable *rl, int last, int run, int level) -{ - int index; - index = rl->index_run[last][run]; - if (index >= rl->n) - return rl->n; - if (level > rl->max_level[last][run]) - return rl->n; - return index + level - 1; -} - -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, - 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, int picture_number); -void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number); -#ifdef CONFIG_ENCODERS -void h263_encode_init(MpegEncContext *s); -#else -static void h263_encode_init(MpegEncContext *s) {assert(0);} -#endif -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); -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); -int ff_h263_round_chroma(int x); -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); - -/* mjpeg.c */ -int mjpeg_init(MpegEncContext *s); -void mjpeg_close(MpegEncContext *s); -void mjpeg_encode_mb(MpegEncContext *s, - DCTELEM block[6][64]); -void mjpeg_picture_header(MpegEncContext *s); -void mjpeg_picture_trailer(MpegEncContext *s); -void ff_mjpeg_stuffing(PutBitContext * pbc); - -#endif /* AVCODEC_MPEGVIDEO_H */ - |