forked from KolibriOS/kolibrios
705 lines
32 KiB
C
705 lines
32 KiB
C
/*
|
|
* 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 header.
|
|
*/
|
|
|
|
#ifndef AVCODEC_MPEGVIDEO_H
|
|
#define AVCODEC_MPEGVIDEO_H
|
|
|
|
#include <float.h>
|
|
|
|
#include "avcodec.h"
|
|
#include "blockdsp.h"
|
|
#include "error_resilience.h"
|
|
#include "fdctdsp.h"
|
|
#include "get_bits.h"
|
|
#include "h264chroma.h"
|
|
#include "h263dsp.h"
|
|
#include "hpeldsp.h"
|
|
#include "idctdsp.h"
|
|
#include "internal.h"
|
|
#include "me_cmp.h"
|
|
#include "motion_est.h"
|
|
#include "mpegpicture.h"
|
|
#include "mpegvideodsp.h"
|
|
#include "mpegvideoencdsp.h"
|
|
#include "pixblockdsp.h"
|
|
#include "put_bits.h"
|
|
#include "ratecontrol.h"
|
|
#include "parser.h"
|
|
#include "mpegutils.h"
|
|
#include "mpeg12data.h"
|
|
#include "qpeldsp.h"
|
|
#include "thread.h"
|
|
#include "videodsp.h"
|
|
|
|
#include "libavutil/opt.h"
|
|
#include "libavutil/timecode.h"
|
|
|
|
#define FRAME_SKIPPED 100 ///< return value for header parsers if frame is not coded
|
|
|
|
#define MAX_FCODE 7
|
|
|
|
#define MAX_THREADS 32
|
|
|
|
#define MAX_B_FRAMES 16
|
|
|
|
#define ME_MAP_SIZE 64
|
|
|
|
#define MAX_MB_BYTES (30*16*16*3/8 + 120)
|
|
|
|
#define INPLACE_OFFSET 16
|
|
|
|
/* Start codes. */
|
|
#define SEQ_END_CODE 0x000001b7
|
|
#define SEQ_START_CODE 0x000001b3
|
|
#define GOP_START_CODE 0x000001b8
|
|
#define PICTURE_START_CODE 0x00000100
|
|
#define SLICE_MIN_START_CODE 0x00000101
|
|
#define SLICE_MAX_START_CODE 0x000001af
|
|
#define EXT_START_CODE 0x000001b5
|
|
#define USER_START_CODE 0x000001b2
|
|
|
|
/**
|
|
* MpegEncContext.
|
|
*/
|
|
typedef struct MpegEncContext {
|
|
AVClass *class;
|
|
|
|
int y_dc_scale, c_dc_scale;
|
|
int ac_pred;
|
|
int block_last_index[12]; ///< last non zero coefficient in block
|
|
int h263_aic; ///< Advanded INTRA Coding (AIC)
|
|
|
|
/* scantables */
|
|
ScanTable inter_scantable; ///< if inter == intra then intra should be used to reduce tha cache usage
|
|
ScanTable intra_scantable;
|
|
ScanTable intra_h_scantable;
|
|
ScanTable intra_v_scantable;
|
|
|
|
/* WARNING: changes above this line require updates to hardcoded
|
|
* offsets used in asm. */
|
|
|
|
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
|
|
int64_t bit_rate; ///< wanted bit rate
|
|
enum OutputFormat out_format; ///< output format
|
|
int h263_pred; ///< use mpeg4/h263 ac/dc predictions
|
|
int pb_frame; ///< PB frame mode (0 = none, 1 = base, 2 = improved)
|
|
|
|
/* the following codec id fields are deprecated in favor of codec_id */
|
|
int h263_plus; ///< h263 plus headers
|
|
int h263_flv; ///< use flv h263 header
|
|
|
|
enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
|
|
int fixed_qscale; ///< fixed qscale if non zero
|
|
int encoding; ///< true if we are encoding (vs decoding)
|
|
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
|
|
/* the following fields are managed internally by the encoder */
|
|
|
|
/* sequence parameters */
|
|
int context_initialized;
|
|
int input_picture_number; ///< used to set pic->display_picture_number, should not be used for/by anything else
|
|
int coded_picture_number; ///< used to set pic->coded_picture_number, should not be used for/by anything else
|
|
int picture_number; //FIXME remove, unclear definition
|
|
int picture_in_gop_number; ///< 0-> first pic in gop, ...
|
|
int 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 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
|
|
ptrdiff_t linesize; ///< line size, in bytes, may be different from width
|
|
ptrdiff_t 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
|
|
|
|
int64_t user_specified_pts; ///< last non-zero pts from AVFrame which was passed into avcodec_encode_video2()
|
|
/**
|
|
* pts difference between the first and second input frame, used for
|
|
* calculating dts of the first frame when there's a delay */
|
|
int64_t dts_delta;
|
|
/**
|
|
* reordered pts to be used as dts for the next output frame when there's
|
|
* a delay */
|
|
int64_t reordered_pts;
|
|
|
|
/** bit output */
|
|
PutBitContext pb;
|
|
|
|
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];
|
|
int slice_context_count; ///< number of used thread_contexts
|
|
|
|
/**
|
|
* 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
|
|
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
|
|
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 mpeg4 AC prediction, all 3 arrays must be continuous
|
|
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
|
|
|
|
ScratchpadContext sc;
|
|
|
|
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 closed_gop; ///< MPEG1/2 GOP is closed
|
|
int pict_type; ///< AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
|
|
int vbv_delay;
|
|
int last_pict_type; //FIXME removes
|
|
int last_non_b_pict_type; ///< used for mpeg4 gmc b-frames & ratecontrol
|
|
int droppable;
|
|
int frame_rate_index;
|
|
AVRational mpeg2_frame_rate_ext;
|
|
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
|
|
|
|
BlockDSPContext bdsp;
|
|
FDCTDSPContext fdsp;
|
|
H264ChromaContext h264chroma;
|
|
HpelDSPContext hdsp;
|
|
IDCTDSPContext idsp;
|
|
MECmpContext mecc;
|
|
MpegVideoDSPContext mdsp;
|
|
MpegvideoEncDSPContext mpvencdsp;
|
|
PixblockDSPContext pdsp;
|
|
QpelDSPContext qdsp;
|
|
VideoDSPContext vdsp;
|
|
H263DSPContext h263dsp;
|
|
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]);
|
|
#if FF_API_MOTION_EST
|
|
int me_method; ///< ME algorithm
|
|
#endif
|
|
int motion_est; ///< ME algorithm
|
|
int mv_dir;
|
|
#define MV_DIR_FORWARD 1
|
|
#define MV_DIR_BACKWARD 2
|
|
#define MV_DIRECT 4 ///< bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
|
|
int mv_type;
|
|
#define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
|
|
#define MV_TYPE_8X8 1 ///< 4 vectors (h263, mpeg4 4MV)
|
|
#define MV_TYPE_16X8 2 ///< 2 vectors, one per 16x8 block
|
|
#define MV_TYPE_FIELD 3 ///< 2 vectors, one per field
|
|
#define MV_TYPE_DMV 4 ///< 2 vectors, special mpeg2 Dual Prime Vectors
|
|
/**motion vectors for a macroblock
|
|
first coordinate : 0 = forward 1 = backward
|
|
second " : depend on type
|
|
third " : 0 = x, 1 = y
|
|
*/
|
|
int mv[2][4][2];
|
|
int field_select[2][2];
|
|
int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4
|
|
uint8_t *fcode_tab; ///< smallest fcode needed for each MV
|
|
int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv
|
|
|
|
MotionEstContext me;
|
|
|
|
int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
|
|
for b-frames rounding mode is always 0 */
|
|
|
|
/* 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 (defines in mpegutils.h)
|
|
|
|
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];
|
|
|
|
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 *intra_chroma_ac_vlc_length;
|
|
uint8_t *intra_chroma_ac_vlc_last_length;
|
|
uint8_t *inter_ac_vlc_length;
|
|
uint8_t *inter_ac_vlc_last_length;
|
|
uint8_t *luma_dc_vlc_length;
|
|
#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
|
|
|
|
int coded_score[12];
|
|
|
|
/** precomputed matrix (combine qscale and DCT renorm) */
|
|
int (*q_intra_matrix)[64];
|
|
int (*q_chroma_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_chroma_intra_matrix16)[2][64];
|
|
uint16_t (*q_inter_matrix16)[2][64];
|
|
|
|
/* noise reduction */
|
|
int (*dct_error_sum)[64];
|
|
int dct_count[2];
|
|
uint16_t (*dct_offset)[64];
|
|
|
|
/* bit rate control */
|
|
int64_t total_bits;
|
|
int frame_bits; ///< bits used for the current frame
|
|
int stuffing_bits; ///< bits used for stuffing
|
|
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 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
|
|
|
|
ParseContext parse_context;
|
|
|
|
/* H.263 specific */
|
|
int gob_index;
|
|
int obmc; ///< overlapped block motion compensation
|
|
int mb_info; ///< interval for outputting info about mb offsets as side data
|
|
int prev_mb_info, last_mb_info;
|
|
uint8_t *mb_info_ptr;
|
|
int mb_info_size;
|
|
int ehc_mode;
|
|
int rc_strategy;
|
|
|
|
/* H.263+ specific */
|
|
int umvplus; ///< == H263+ && unrestricted_mv
|
|
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 */
|
|
///< number of bits to represent the fractional part of time (encoder only)
|
|
int time_increment_bits;
|
|
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 real_sprite_warping_points;
|
|
int sprite_offset[2][2]; ///< sprite offset[isChroma][isMVY]
|
|
int sprite_delta[2][2]; ///< sprite_delta [isY][isMVY]
|
|
int mcsel;
|
|
int quant_precision;
|
|
int quarter_sample; ///< 1->qpel, 0->half pel ME/MC
|
|
int aspect_ratio_info; //FIXME remove
|
|
int sprite_warping_accuracy;
|
|
int data_partitioning; ///< data partitioning flag from header
|
|
int partitioned_frame; ///< is current frame partitioned
|
|
int low_delay; ///< no reordering needed / has no b-frames
|
|
int vo_type;
|
|
PutBitContext tex_pb; ///< used for data partitioned VOPs
|
|
PutBitContext pb2; ///< used for data partitioned VOPs
|
|
int mpeg_quant;
|
|
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_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;
|
|
|
|
/* RV10 specific */
|
|
int rv10_version; ///< RV10 version: 0 or 3
|
|
int rv10_first_dc_coded[3];
|
|
|
|
/* MJPEG specific */
|
|
struct MJpegContext *mjpeg_ctx;
|
|
int esc_pos;
|
|
|
|
/* 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
|
|
uint8_t *vbv_delay_ptr; ///< pointer to vbv_delay in the bitstream
|
|
|
|
/* MPEG-2-specific - I wished not to have to support this mess. */
|
|
int progressive_sequence;
|
|
int mpeg_f_code[2][2];
|
|
|
|
// picture structure defines are loaded from mpegutils.h
|
|
int picture_structure;
|
|
|
|
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 seq_disp_ext;
|
|
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_field; ///< is 1 for the first field of a field picture 0 otherwise
|
|
int drop_frame_timecode; ///< timecode is in drop frame format.
|
|
int scan_offset; ///< reserve space for SVCD scan offset user data.
|
|
|
|
/* RTP specific */
|
|
int rtp_mode;
|
|
|
|
char *tc_opt_str; ///< timecode option string
|
|
AVTimecode tc; ///< timecode context
|
|
|
|
uint8_t *ptr_lastgob;
|
|
int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped
|
|
int pack_pblocks; //xvmc needs to keep blocks without gaps.
|
|
int16_t (*pblocks[12])[64];
|
|
|
|
int16_t (*block)[64]; ///< points to one of the following blocks
|
|
int16_t (*blocks)[12][64]; // for HQ mode we need to keep the best block
|
|
int (*decode_mb)(struct MpegEncContext *s, int16_t 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,
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_mpeg1_inter)(struct MpegEncContext *s,
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_mpeg2_intra)(struct MpegEncContext *s,
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_mpeg2_inter)(struct MpegEncContext *s,
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_h263_intra)(struct MpegEncContext *s,
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_h263_inter)(struct MpegEncContext *s,
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_intra)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
void (*dct_unquantize_inter)(struct MpegEncContext *s, // unquantizer to use (mpeg4 can use both)
|
|
int16_t *block/*align 16*/, int n, int qscale);
|
|
int (*dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
|
|
int (*fast_dct_quantize)(struct MpegEncContext *s, int16_t *block/*align 16*/, int n, int qscale, int *overflow);
|
|
void (*denoise_dct)(struct MpegEncContext *s, int16_t *block);
|
|
|
|
int mpv_flags; ///< flags set by private options
|
|
int quantizer_noise_shaping;
|
|
|
|
/**
|
|
* ratecontrol qmin qmax limiting method
|
|
* 0-> clipping, 1-> use a nice continuous function to limit qscale within qmin/qmax.
|
|
*/
|
|
float rc_qsquish;
|
|
float rc_qmod_amp;
|
|
int rc_qmod_freq;
|
|
float rc_initial_cplx;
|
|
float rc_buffer_aggressivity;
|
|
float border_masking;
|
|
int lmin, lmax;
|
|
int vbv_ignore_qmax;
|
|
|
|
char *rc_eq;
|
|
|
|
/* temp buffers for rate control */
|
|
float *cplx_tab, *bits_tab;
|
|
|
|
/* flag to indicate a reinitialization is required, e.g. after
|
|
* a frame size change */
|
|
int context_reinit;
|
|
|
|
ERContext er;
|
|
|
|
int error_rate;
|
|
|
|
/* temporary frames used by b_frame_strategy = 2 */
|
|
AVFrame *tmp_frames[MAX_B_FRAMES + 2];
|
|
} MpegEncContext;
|
|
|
|
/* mpegvideo_enc common options */
|
|
#define FF_MPV_FLAG_SKIP_RD 0x0001
|
|
#define FF_MPV_FLAG_STRICT_GOP 0x0002
|
|
#define FF_MPV_FLAG_QP_RD 0x0004
|
|
#define FF_MPV_FLAG_CBP_RD 0x0008
|
|
#define FF_MPV_FLAG_NAQ 0x0010
|
|
#define FF_MPV_FLAG_MV0 0x0020
|
|
|
|
#ifndef FF_MPV_OFFSET
|
|
#define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
|
|
#endif
|
|
#define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
|
|
#define FF_MPV_COMMON_OPTS \
|
|
{ "mpv_flags", "Flags common for all mpegvideo-based encoders.", FF_MPV_OFFSET(mpv_flags), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "skip_rd", "RD optimal MB level residual skipping", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_SKIP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "strict_gop", "Strictly enforce gop size", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_STRICT_GOP }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "qp_rd", "Use rate distortion optimization for qp selection", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_QP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "cbp_rd", "use rate distortion optimization for CBP", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_CBP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_NAQ }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "mv0", "always try a mb with mv=<0,0>", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_MV0 }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
|
|
{ "luma_elim_threshold", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
|
|
FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
|
|
{ "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
|
|
FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
|
|
{ "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
|
|
{ "error_rate", "Simulate errors in the bitstream to test error concealment.", \
|
|
FF_MPV_OFFSET(error_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
|
|
{"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", \
|
|
FF_MPV_OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0, 99, FF_MPV_OPT_FLAGS}, \
|
|
{"rc_qmod_amp", "experimental quantizer modulation", FF_MPV_OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
|
|
{"rc_qmod_freq", "experimental quantizer modulation", FF_MPV_OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS}, \
|
|
{"rc_eq", "Set rate control equation. When computing the expression, besides the standard functions " \
|
|
"defined in the section 'Expression Evaluation', the following functions are available: " \
|
|
"bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv " \
|
|
"fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.", \
|
|
FF_MPV_OFFSET(rc_eq), AV_OPT_TYPE_STRING, .flags = FF_MPV_OPT_FLAGS }, \
|
|
{"rc_init_cplx", "initial complexity for 1-pass encoding", FF_MPV_OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
|
|
{"rc_buf_aggressivity", "currently useless", FF_MPV_OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
|
|
{"border_mask", "increase the quantizer for macroblocks close to borders", FF_MPV_OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
|
|
{"lmin", "minimum Lagrange factor (VBR)", FF_MPV_OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 = 2*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"lmax", "maximum Lagrange factor (VBR)", FF_MPV_OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 = 31*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"ibias", "intra quant bias", FF_MPV_OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"pbias", "inter quant bias", FF_MPV_OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
|
|
{"rc_strategy", "ratecontrol method", FF_MPV_OFFSET(rc_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS }, \
|
|
{"motion_est", "motion estimation algorithm", FF_MPV_OFFSET(motion_est), AV_OPT_TYPE_INT, {.i64 = FF_ME_EPZS }, FF_ME_ZERO, FF_ME_XONE, FF_MPV_OPT_FLAGS, "motion_est" }, \
|
|
{ "zero", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ZERO }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
|
|
{ "epzs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_EPZS }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
|
|
{ "xone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_XONE }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
|
|
|
|
extern const AVOption ff_mpv_generic_options[];
|
|
|
|
/**
|
|
* Set the given MpegEncContext to common defaults (same for encoding
|
|
* and decoding). The changed fields will not depend upon the prior
|
|
* state of the MpegEncContext.
|
|
*/
|
|
void ff_mpv_common_defaults(MpegEncContext *s);
|
|
|
|
void ff_dct_encode_init_x86(MpegEncContext *s);
|
|
|
|
int ff_mpv_common_init(MpegEncContext *s);
|
|
void ff_mpv_common_init_arm(MpegEncContext *s);
|
|
void ff_mpv_common_init_axp(MpegEncContext *s);
|
|
void ff_mpv_common_init_neon(MpegEncContext *s);
|
|
void ff_mpv_common_init_ppc(MpegEncContext *s);
|
|
void ff_mpv_common_init_x86(MpegEncContext *s);
|
|
void ff_mpv_common_init_mips(MpegEncContext *s);
|
|
|
|
int ff_mpv_common_frame_size_change(MpegEncContext *s);
|
|
void ff_mpv_common_end(MpegEncContext *s);
|
|
|
|
void ff_mpv_decode_defaults(MpegEncContext *s);
|
|
void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx);
|
|
void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64]);
|
|
void ff_mpv_report_decode_progress(MpegEncContext *s);
|
|
|
|
int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx);
|
|
void ff_mpv_frame_end(MpegEncContext *s);
|
|
|
|
int ff_mpv_encode_init(AVCodecContext *avctx);
|
|
void ff_mpv_encode_init_x86(MpegEncContext *s);
|
|
|
|
int ff_mpv_encode_end(AVCodecContext *avctx);
|
|
int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
|
|
const AVFrame *frame, int *got_packet);
|
|
int ff_mpv_reallocate_putbitbuffer(MpegEncContext *s, size_t threshold, size_t size_increase);
|
|
|
|
void ff_clean_intra_table_entries(MpegEncContext *s);
|
|
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h);
|
|
void ff_mpeg_flush(AVCodecContext *avctx);
|
|
|
|
void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict);
|
|
void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
|
|
uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
|
|
int *low_delay,
|
|
int mb_width, int mb_height, int mb_stride, int quarter_sample);
|
|
|
|
int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type);
|
|
|
|
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
|
|
|
|
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
|
|
int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src);
|
|
void ff_set_qscale(MpegEncContext * s, int qscale);
|
|
|
|
void ff_mpv_idct_init(MpegEncContext *s);
|
|
int ff_dct_encode_init(MpegEncContext *s);
|
|
void ff_convert_matrix(MpegEncContext *s, int (*qmat)[64], uint16_t (*qmat16)[2][64],
|
|
const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
|
|
int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow);
|
|
|
|
void ff_init_block_index(MpegEncContext *s);
|
|
|
|
void ff_mpv_motion(MpegEncContext *s,
|
|
uint8_t *dest_y, uint8_t *dest_cb,
|
|
uint8_t *dest_cr, int dir,
|
|
uint8_t **ref_picture,
|
|
op_pixels_func (*pix_op)[4],
|
|
qpel_mc_func (*qpix_op)[16]);
|
|
|
|
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;
|
|
}
|
|
|
|
#endif /* AVCODEC_MPEGVIDEO_H */
|