diff options
Diffstat (limited to 'src/libffmpeg/libavcodec/mpegvideo.h')
| -rw-r--r-- | src/libffmpeg/libavcodec/mpegvideo.h | 305 |
1 files changed, 222 insertions, 83 deletions
diff --git a/src/libffmpeg/libavcodec/mpegvideo.h b/src/libffmpeg/libavcodec/mpegvideo.h index f809a1255..2e957451b 100644 --- a/src/libffmpeg/libavcodec/mpegvideo.h +++ b/src/libffmpeg/libavcodec/mpegvideo.h @@ -1,32 +1,31 @@ /* * Generic DCT based hybrid video encoder - * Copyright (c) 2000,2001 Gerard Lantau. + * Copyright (c) 2000, 2001, 2002 Fabrice Bellard. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. + * This library 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 of the License, or (at your option) any later version. * - * This program is distributed in the hope that it will be useful, + * This library 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 General Public License for more details. + * 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 General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -/* Macros for picture code type. */ -#define I_TYPE 1 -#define P_TYPE 2 -#define B_TYPE 3 -#define S_TYPE 4 //S(GMC)-VOP MPEG4 +#ifndef AVCODEC_MPEGVIDEO_H +#define AVCODEC_MPEGVIDEO_H + +#define FRAME_SKIPED 100 // return value for header parsers if frame is not coded enum OutputFormat { FMT_MPEG1, FMT_H263, - FMT_MJPEG, + FMT_MJPEG, }; #define MPEG_BUF_SIZE (16 * 1024) @@ -36,6 +35,11 @@ enum OutputFormat { #define MAX_FCODE 7 #define MAX_MV 2048 +#define REORDER_BUFFER_SIZE (FF_MAX_B_FRAMES+2) + +#define ME_MAP_SIZE 64 +#define ME_MAP_SHIFT 3 +#define ME_MAP_MV_BITS 11 typedef struct Predictor{ double coeff; @@ -43,6 +47,33 @@ typedef struct Predictor{ double decay; } Predictor; +typedef struct RateControlEntry{ + int pict_type; + int qscale; + int mv_bits; + int i_tex_bits; + int p_tex_bits; + int misc_bits; + UINT64 expected_bits; + int new_pict_type; + float new_qscale; +}RateControlEntry; + +typedef struct RateControlContext{ + FILE *stats_file; + int num_entries; + RateControlEntry *entry; +}RateControlContext; + +typedef struct ReorderBuffer{ + UINT8 *picture[3]; + int pict_type; + int qscale; + int force_type; + int picture_number; + int picture_in_gop_number; +} ReorderBuffer; + typedef struct MpegEncContext { struct AVCodecContext *avctx; /* the following parameters must be initialized before encoding */ @@ -53,11 +84,15 @@ typedef struct MpegEncContext { int bit_rate; /* wanted bit rate */ int bit_rate_tolerance; /* amount of +- bits (>0)*/ 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_rv10; /* use RV10 variation for H263 */ - int h263_pred; /* use mpeg4/h263 ac/dc predictions */ - int h263_msmpeg4; /* generate MSMPEG4 compatible stream */ + int h263_msmpeg4; /* generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)*/ int h263_intel; /* use I263 intel h263 header */ + + int codec_id; /* see CODEC_ID_xxx */ int fixed_qscale; /* fixed qscale if non zero */ float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0) */ float qblur; /* amount of qscale smoothing over time (0.0-1.0) */ @@ -66,7 +101,16 @@ typedef struct MpegEncContext { int max_qdiff; /* max qscale difference between frames */ int encoding; /* true if we are encoding (vs decoding) */ int flags; /* AVCodecContext.flags (HQ, MV4, ...) */ - int force_type; /* 0= no force, otherwise I_TYPE, P_TYPE, ... */ + int force_input_type;/* 0= no force, otherwise I_TYPE, P_TYPE, ... */ + int max_b_frames; /* max number of b-frames for encoding */ + float b_quant_factor;/* qscale factor between ips and b frames */ + float b_quant_offset;/* qscale offset between ips and b frames */ + int rc_strategy; + int b_frame_strategy; + 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 */ /* the following fields are managed internally by the encoder */ /* bit output */ @@ -74,46 +118,71 @@ typedef struct MpegEncContext { /* sequence parameters */ int context_initialized; + int input_picture_number; + int input_picture_in_gop_number; /* 0-> first pic in gop, ... */ int picture_number; int fake_picture_number; /* picture number at the bitstream frame rate */ int gop_picture_number; /* index of the first picture of a GOP based on fake_pic_num & mpeg1 specific */ int picture_in_gop_number; /* 0-> first pic in gop, ... */ - int mb_width, mb_height; + int b_frames_since_non_b; /* used for encoding, relative to not yet reordered input */ + int mb_width, mb_height; /* number of MBs horizontally & vertically */ int mb_num; /* number of MBs of a picture */ int linesize; /* line size, in bytes, may be different from width */ UINT8 *new_picture[3]; /* picture to be compressed */ - UINT8 *last_picture[3]; /* previous picture */ + UINT8 *picture_buffer[REORDER_BUFFER_SIZE][3]; /* internal buffers used for reordering of input pictures */ + int picture_buffer_index; + ReorderBuffer coded_order[REORDER_BUFFER_SIZE]; + UINT8 *last_picture[3]; /* previous picture */ UINT8 *last_picture_base[3]; /* real start of the picture */ - UINT8 *next_picture[3]; /* previous picture (for bidir pred) */ + UINT8 *next_picture[3]; /* previous picture (for bidir pred) */ UINT8 *next_picture_base[3]; /* real start of the picture */ - UINT8 *aux_picture[3]; /* aux picture (for B frames only) */ - UINT8 *aux_picture_base[3]; /* real start of the picture */ - UINT8 *current_picture[3]; /* buffer to store the decompressed current picture */ - int last_dc[3]; /* last DC values for MPEG1 */ - INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */ + UINT8 *aux_picture[3]; /* aux picture (for B frames only) */ + UINT8 *aux_picture_base[3]; /* real start of the picture */ + UINT8 *current_picture[3]; /* buffer to store the decompressed current picture */ + int num_available_buffers; /* is 0 at the start & after seeking, after the first I frame its 1 after next I/P 2 */ + int last_dc[3]; /* last DC values for MPEG1 */ + INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */ int y_dc_scale, c_dc_scale; - UINT8 *coded_block; /* used for coded block pattern prediction */ - INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */ + UINT8 *coded_block; /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/ + INT16 (*ac_val[3])[16]; /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */ int ac_pred; int mb_skiped; /* MUST BE SET only during DECODING */ - UINT8 *mbskip_table; /* used to avoid copy if macroblock - skipped (for black regions for example) */ - UINT8 *mbintra_table; /* used to kill a few memsets */ - - int qscale; - int pict_type; - int last_non_b_pict_type; /* used for mpeg4 gmc b-frames */ - int last_pict_type; /* used for bit rate stuff (needs that to update the right predictor) */ + UINT8 *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 *mbintra_table; /* used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding */ + UINT8 *cbp_table; /* used to store cbp, ac_pred for partitioned decoding */ + UINT8 *pred_dir_table; /* used to store pred_dir for partitioned decoding */ + INT8 *qscale_table; /* used to store qscale for partitioned decoding (& postprocessing FIXME export) */ + + int input_qscale; /* qscale prior to reordering of frames */ + int input_pict_type; /* pict_type prior to reordering of frames */ + int force_type; /* 0= no force, otherwise I_TYPE, P_TYPE, ... */ + int qscale; /* QP */ + int last_non_b_qscale; /* QP of last non b frame used for b frame qscale*/ + int pict_type; /* I_TYPE, P_TYPE, B_TYPE, ... */ + int last_non_b_pict_type; /* used for mpeg4 gmc b-frames & ratecontrol */ int frame_rate_index; /* motion compensation */ int unrestricted_mv; int h263_long_vectors; /* use horrible h263v1 long vector mode */ - int f_code; /* resolution */ - int b_code; /* backward resolution for B Frames (mpeg4) */ - INT16 *mv_table[2]; /* MV table (1MV per MB)*/ - INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB)*/ - int full_search; + int f_code; /* forward MV resolution */ + int b_code; /* backward MV resolution for B Frames (mpeg4) */ + INT16 (*motion_val)[2]; /* used for MV prediction (4MV per MB) */ + INT16 (*p_mv_table)[2]; /* MV table (1MV per MB) p-frame encoding */ + INT16 (*b_forw_mv_table)[2]; /* MV table (1MV per MB) forward mode b-frame encoding */ + INT16 (*b_back_mv_table)[2]; /* MV table (1MV per MB) backward mode b-frame encoding */ + INT16 (*b_bidir_forw_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */ + INT16 (*b_bidir_back_mv_table)[2]; /* MV table (1MV per MB) bidir mode b-frame encoding */ + INT16 (*b_direct_forw_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */ + INT16 (*b_direct_back_mv_table)[2];/* MV table (1MV per MB) direct mode b-frame encoding */ + INT16 (*b_direct_mv_table)[2]; /* MV table (1MV per MB) direct mode b-frame encoding */ + int me_method; /* ME algorithm */ + uint8_t *me_scratchpad; /* data area for the me algo, so that the ME doesnt need to malloc/free */ + uint32_t *me_map; /* map to avoid duplicate evaluations */ + uint16_t *me_score_map; /* map to store the SADs */ + int me_map_generation; + int skip_me; /* set if ME is skiped for the current MB */ int mv_dir; #define MV_DIR_BACKWARD 1 #define MV_DIR_FORWARD 2 @@ -131,62 +200,76 @@ typedef struct MpegEncContext { */ int mv[2][4][2]; int field_select[2][2]; - int last_mv[2][2][2]; + int last_mv[2][2][2]; /* last MV, used for MV prediction in MPEG1 & B-frame MPEG4 */ UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV, used for ME */ UINT8 *fcode_tab; /* smallest fcode needed for each MV */ int has_b_frames; - int no_rounding; /* apply no rounding to motion estimation (MPEG4) */ + 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 skiped + when set to 2 idct/dequant will be skipped too */ /* macroblock layer */ int mb_x, mb_y; int mb_incr; int mb_intra; - UINT16 *mb_var; /* Table for MB variances */ - UINT8 *mb_type; /* Table for MB type */ + UINT16 *mb_var; /* Table for MB variances */ + UINT16 *mc_mb_var; /* Table for motion compensated MB variances */ + UINT8 *mb_type; /* Table for MB type */ #define MB_TYPE_INTRA 0x01 #define MB_TYPE_INTER 0x02 #define MB_TYPE_INTER4V 0x04 #define MB_TYPE_SKIPED 0x08 +#define MB_TYPE_GMC 0x10 + #define MB_TYPE_DIRECT 0x10 #define MB_TYPE_FORWARD 0x20 -#define MB_TYPE_BACKWAD 0x40 +#define MB_TYPE_BACKWARD 0x40 #define MB_TYPE_BIDIR 0x80 - int block_index[6]; + int block_index[6]; /* index to current MB in block based arrays with edges*/ int block_wrap[6]; /* matrix transmitted in the bitstream */ UINT16 intra_matrix[64]; UINT16 chroma_intra_matrix[64]; - UINT16 non_intra_matrix[64]; - UINT16 chroma_non_intra_matrix[64]; + UINT16 inter_matrix[64]; + UINT16 chroma_inter_matrix[64]; +#define QUANT_BIAS_SHIFT 4 + 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 */ /* precomputed matrix (combine qscale and DCT renorm) */ - int q_intra_matrix[64]; - int q_non_intra_matrix[64]; + int q_intra_matrix[32][64]; + int q_inter_matrix[32][64]; /* identical to the above but for MMX & these are not permutated */ - UINT16 __align8 q_intra_matrix16[64] ; - UINT16 __align8 q_non_intra_matrix16[64]; + UINT16 __align8 q_intra_matrix16[32][64]; + UINT16 __align8 q_inter_matrix16[32][64]; + UINT16 __align8 q_intra_matrix16_bias[32][64]; + UINT16 __align8 q_inter_matrix16_bias[32][64]; int block_last_index[6]; /* last non zero coefficient in block */ void *opaque; /* private data for the user */ /* bit rate control */ - int I_frame_bits; /* wanted number of bits per I frame */ - int P_frame_bits; /* same for P frame */ - int avg_mb_var; /* average MB variance for current frame */ - int mc_mb_var; /* motion compensated MB variance for current frame */ - int last_mc_mb_var; /* motion compensated MB variance for last frame */ + int I_frame_bits; //FIXME used in mpeg12 ... + int mb_var_sum; /* sum of MB variance for current frame */ + int mc_mb_var_sum; /* motion compensated MB variance for current frame */ + int last_non_b_mc_mb_var;/* motion compensated MB variance for last non b frame */ INT64 wanted_bits; INT64 total_bits; - int frame_bits; /* bits used for the current frame */ - int last_frame_bits; /* bits used for the last frame */ + int frame_bits; /* bits used for the current frame */ + int pb_frame_bits; /* bits of the last b...bp group */ Predictor i_pred; Predictor p_pred; double qsum; /* sum of qscales */ double qcount; /* count of qscales */ double short_term_qsum; /* sum of recent qscales */ double short_term_qcount; /* count of recent qscales */ + RateControlContext rc_context; /* statistics, used for 2-pass encoding */ int mv_bits; @@ -198,11 +281,24 @@ typedef struct MpegEncContext { int skip_count; int misc_bits; // cbp, mb_type int last_bits; //temp var used for calculating the above vars + + /* error concealment / resync */ + int resync_mb_x; /* x position of last resync marker */ + int resync_mb_y; /* y position of last resync marker */ + int mb_num_left; /* number of MBs left in this video packet */ + GetBitContext next_resync_gb; /* starts at the next resync marker */ + int next_resync_qscale; /* qscale of next resync marker */ + int next_resync_pos; /* bitstream position of next resync marker */ +#define DECODING_AC_LOST -1 +#define DECODING_ACDC_LOST -2 +#define DECODING_DESYNC -3 + int decoding_error; + int next_p_frame_damaged; /* set if the next p frame is damaged, to avoid showing trashed b frames */ + int error_resilience; /* H.263 specific */ int gob_number; int gob_index; - int first_gob_line; /* H.263+ specific */ int umvplus; @@ -212,11 +308,13 @@ typedef struct MpegEncContext { /* mpeg4 specific */ int time_increment_resolution; - int time_increment_bits; - int time_increment; - int time_base; - int time; - int last_non_b_time[2]; + 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 time; /* time of current frame */ + INT64 last_non_b_time; + UINT16 pp_time; /* time distance between the last 2 p,s,i frames */ + UINT16 bp_time; /* time distance between the last b and p,s,i frame */ int shape; int vol_sprite_usage; int sprite_width; @@ -231,21 +329,32 @@ typedef struct MpegEncContext { int sprite_shift[2][2]; int mcsel; int quant_precision; - int quarter_sample; + int quarter_sample; /* 1->qpel, 0->half pel ME/MC */ int scalability; int new_pred; int reduced_res_vop; int aspect_ratio_info; int sprite_warping_accuracy; int low_latency_sprite; - int data_partioning; - int resync_marker; - int resync_x_pos; + int data_partitioning; + 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 */ + PutBitContext tex_pb; /* used for data partitioned VOPs */ + PutBitContext pb2; /* used for data partitioned VOPs */ +#define PB_BUFFER_SIZE 1024*256 + uint8_t *tex_pb_buffer; + uint8_t *pb2_buffer; /* divx specific, used to workaround (many) bugs in divx5 */ int divx_version; int divx_build; - +#define BITSTREAM_BUFFER_SIZE 1024*256 + UINT8 *bitstream_buffer; //Divx 5.01 puts several frames in a single one, this is used to reorder them + int bitstream_buffer_size; + /* RV10 specific */ int rv10_version; /* RV10 version: 0 or 3 */ int rv10_first_dc_coded[3]; @@ -256,6 +365,7 @@ typedef struct MpegEncContext { 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; @@ -266,8 +376,7 @@ typedef struct MpegEncContext { int slice_height; /* in macroblocks */ int first_slice_line; /* used in mpeg4 too to handle resync markers */ int flipflop_rounding; - int bitrate; - int msmpeg4_version; /* 1=mp41, 2=mp42, 3=mp43/divx3 */ + int msmpeg4_version; /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 */ /* decompression specific */ GetBitContext gb; @@ -306,10 +415,14 @@ typedef struct MpegEncContext { UINT32 mb_line_avgsize; DCTELEM (*block)[64]; /* points to one of the following blocks */ - DCTELEM intra_block[6][64] __align8; - DCTELEM inter_block[6][64] __align8; - DCTELEM inter4v_block[6][64] __align8; - void (*dct_unquantize)(struct MpegEncContext *s, + DCTELEM blocks[2][6][64] __align8; // for HQ mode we need to keep the best block + void (*dct_unquantize_mpeg1)(struct MpegEncContext *s, + DCTELEM *block, int n, int qscale); + void (*dct_unquantize_mpeg2)(struct MpegEncContext *s, + DCTELEM *block, int n, int qscale); + void (*dct_unquantize_h263)(struct MpegEncContext *s, + DCTELEM *block, int n, int qscale); + void (*dct_unquantize)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both) DCTELEM *block, int n, int qscale); } MpegEncContext; @@ -321,11 +434,20 @@ void MPV_frame_end(MpegEncContext *s); #ifdef HAVE_MMX void MPV_common_init_mmx(MpegEncContext *s); #endif +extern int (*dct_quantize)(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow); +extern void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w); +void ff_conceal_past_errors(MpegEncContext *s, int conceal_all); +void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length); +void ff_clean_intra_table_entries(MpegEncContext *s); /* motion_est.c */ - -void estimate_motion(MpegEncContext *s, - int mb_x, int mb_y); +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_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type); /* mpeg12.c */ extern INT16 default_intra_matrix[64]; @@ -382,6 +504,7 @@ INT16 *h263_pred_motion(MpegEncContext * s, int block, int *px, int *py); void mpeg4_pred_ac(MpegEncContext * s, INT16 *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); void h263_encode_init(MpegEncContext *s); @@ -393,6 +516,13 @@ int intel_h263_decode_picture_header(MpegEncContext *s); int h263_decode_mb(MpegEncContext *s, DCTELEM block[6][64]); int h263_get_picture_format(int width, int height); +int ff_mpeg4_decode_video_packet_header(MpegEncContext *s); +int ff_mpeg4_resync(MpegEncContext *s); +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); /* rv10.c */ void rv10_encode_picture_header(MpegEncContext *s, int picture_number); @@ -404,12 +534,12 @@ void msmpeg4_encode_ext_header(MpegEncContext * s); void msmpeg4_encode_mb(MpegEncContext * s, DCTELEM block[6][64], int motion_x, int motion_y); -void msmpeg4_dc_scale(MpegEncContext * s); int msmpeg4_decode_picture_header(MpegEncContext * s); int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size); int msmpeg4_decode_mb(MpegEncContext *s, DCTELEM block[6][64]); int msmpeg4_decode_init_vlc(MpegEncContext *s); +void ff_old_msmpeg4_dc_scale(MpegEncContext *s); /* mjpegenc.c */ @@ -419,3 +549,12 @@ void mjpeg_encode_mb(MpegEncContext *s, DCTELEM block[6][64]); void mjpeg_picture_header(MpegEncContext *s); void mjpeg_picture_trailer(MpegEncContext *s); + +/* rate control */ +int ff_rate_control_init(MpegEncContext *s); +int ff_rate_estimate_qscale(MpegEncContext *s); +int ff_rate_estimate_qscale_pass2(MpegEncContext *s); +void ff_write_pass1_stats(MpegEncContext *s); +void ff_rate_control_uninit(MpegEncContext *s); + +#endif /* AVCODEC_MPEGVIDEO_H */ |