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Diffstat (limited to 'contrib/ffmpeg/libavcodec/mpegvideo.h')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/mpegvideo.h | 908 |
1 files changed, 908 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavcodec/mpegvideo.h b/contrib/ffmpeg/libavcodec/mpegvideo.h new file mode 100644 index 000000000..80e0f9065 --- /dev/null +++ b/contrib/ffmpeg/libavcodec/mpegvideo.h @@ -0,0 +1,908 @@ +/* + * 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; /*!< 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 + +/* 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); + +#include "rl.h" + +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 */ + |