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/*
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* Copyright ( c ) 2001 Fabrice Bellard
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* Copyright ( c ) 2002 - 2004 Michael Niedermayer < michaelni @ gmx . at >
*
* 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
*/
/**
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* @ file
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* Options definition for AVCodecContext .
*/
# include "avcodec.h"
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# include "internal.h"
# include "libavutil/avassert.h"
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# include "libavutil/opt.h"
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# include <float.h> /* FLT_MIN, FLT_MAX */
static const char * context_to_name ( void * ptr ) {
AVCodecContext * avc = ptr ;
if ( avc & & avc - > codec & & avc - > codec - > name )
return avc - > codec - > name ;
else
return " NULL " ;
}
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static const AVOption * opt_find ( void * obj , const char * name , const char * unit , int opt_flags , int search_flags )
{
AVCodecContext * s = obj ;
AVCodec * c = NULL ;
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if ( ! ( search_flags & AV_OPT_SEARCH_FAKE_OBJ ) & & s - > priv_data ) {
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if ( s - > codec & & s - > codec - > priv_class )
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return av_opt_find ( s - > priv_data , name , unit , opt_flags , search_flags ) ;
return NULL ;
}
while ( ( c = av_codec_next ( c ) ) ) {
const AVOption * o ;
if ( c - > priv_class & & ( o = av_opt_find ( & c - > priv_class , name , unit , opt_flags , search_flags ) ) )
return o ;
}
return NULL ;
}
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# define OFFSET(x) offsetof(AVCodecContext,x)
# define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
//these names are too long to be readable
# define V AV_OPT_FLAG_VIDEO_PARAM
# define A AV_OPT_FLAG_AUDIO_PARAM
# define S AV_OPT_FLAG_SUBTITLE_PARAM
# define E AV_OPT_FLAG_ENCODING_PARAM
# define D AV_OPT_FLAG_DECODING_PARAM
# define AV_CODEC_DEFAULT_BITRATE 200*1000
static const AVOption options [ ] = {
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{ " b " , " set bitrate (in bits/s) " , OFFSET ( bit_rate ) , FF_OPT_TYPE_INT , { . dbl = AV_CODEC_DEFAULT_BITRATE } , INT_MIN , INT_MAX , A | V | E } ,
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{ " ab " , " set bitrate (in bits/s) " , OFFSET ( bit_rate ) , FF_OPT_TYPE_INT , { . dbl = 128 * 1000 } , INT_MIN , INT_MAX , A | E } ,
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{ " bt " , " set video bitrate tolerance (in bits/s) " , OFFSET ( bit_rate_tolerance ) , FF_OPT_TYPE_INT , { . dbl = AV_CODEC_DEFAULT_BITRATE * 20 } , 1 , INT_MAX , V | E } ,
{ " flags " , NULL , OFFSET ( flags ) , FF_OPT_TYPE_FLAGS , { . dbl = DEFAULT } , 0 , UINT_MAX , V | A | E | D , " flags " } ,
{ " mv4 " , " use four motion vector by macroblock (mpeg4) " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_4MV } , INT_MIN , INT_MAX , V | E , " flags " } ,
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# if FF_API_MPEGVIDEO_GLOBAL_OPTS
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{ " obmc " , " use overlapped block motion compensation (h263+) " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_OBMC } , INT_MIN , INT_MAX , V | E , " flags " } ,
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# endif
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{ " qpel " , " use 1/4 pel motion compensation " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_QPEL } , INT_MIN , INT_MAX , V | E , " flags " } ,
{ " loop " , " use loop filter " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_LOOP_FILTER } , INT_MIN , INT_MAX , V | E , " flags " } ,
{ " qscale " , " use fixed qscale " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_QSCALE } , INT_MIN , INT_MAX , 0 , " flags " } ,
{ " gmc " , " use gmc " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_GMC } , INT_MIN , INT_MAX , V | E , " flags " } ,
{ " mv0 " , " always try a mb with mv=<0,0> " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_MV0 } , INT_MIN , INT_MAX , V | E , " flags " } ,
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# if FF_API_MPEGVIDEO_GLOBAL_OPTS
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{ " part " , " use data partitioning " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_PART } , INT_MIN , INT_MAX , V | E , " flags " } ,
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# endif
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{ " input_preserved " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_INPUT_PRESERVED } , INT_MIN , INT_MAX , 0 , " flags " } ,
{ " pass1 " , " use internal 2pass ratecontrol in first pass mode " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_PASS1 } , INT_MIN , INT_MAX , 0 , " flags " } ,
{ " pass2 " , " use internal 2pass ratecontrol in second pass mode " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_PASS2 } , INT_MIN , INT_MAX , 0 , " flags " } ,
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# if FF_API_MJPEG_GLOBAL_OPTS
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{ " extern_huff " , " use external huffman table (for mjpeg) " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_EXTERN_HUFF } , INT_MIN , INT_MAX , 0 , " flags " } ,
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# endif
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{ " gray " , " only decode/encode grayscale " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_GRAY } , INT_MIN , INT_MAX , V | E | D , " flags " } ,
{ " emu_edge " , " don't draw edges " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_EMU_EDGE } , INT_MIN , INT_MAX , 0 , " flags " } ,
{ " psnr " , " error[?] variables will be set during encoding " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_PSNR } , INT_MIN , INT_MAX , V | E , " flags " } ,
{ " truncated " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_TRUNCATED } , INT_MIN , INT_MAX , 0 , " flags " } ,
{ " naq " , " normalize adaptive quantization " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_NORMALIZE_AQP } , INT_MIN , INT_MAX , V | E , " flags " } ,
{ " ildct " , " use interlaced dct " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_INTERLACED_DCT } , INT_MIN , INT_MAX , V | E , " flags " } ,
{ " low_delay " , " force low delay " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_LOW_DELAY } , INT_MIN , INT_MAX , V | D | E , " flags " } ,
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# if FF_API_MPEGVIDEO_GLOBAL_OPTS
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{ " alt " , " enable alternate scantable (mpeg2/mpeg4) " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_ALT_SCAN } , INT_MIN , INT_MAX , V | E , " flags " } ,
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# endif
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{ " global_header " , " place global headers in extradata instead of every keyframe " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_GLOBAL_HEADER } , INT_MIN , INT_MAX , V | A | E , " flags " } ,
{ " bitexact " , " use only bitexact stuff (except (i)dct) " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_BITEXACT } , INT_MIN , INT_MAX , A | V | S | D | E , " flags " } ,
{ " aic " , " h263 advanced intra coding / mpeg4 ac prediction " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_AC_PRED } , INT_MIN , INT_MAX , V | E , " flags " } ,
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# if FF_API_MPEGVIDEO_GLOBAL_OPTS
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{ " umv " , " use unlimited motion vectors " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_H263P_UMV } , INT_MIN , INT_MAX , V | E , " flags " } ,
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# endif
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{ " cbp " , " use rate distortion optimization for cbp " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_CBP_RD } , INT_MIN , INT_MAX , V | E , " flags " } ,
{ " qprd " , " use rate distortion optimization for qp selection " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_QP_RD } , INT_MIN , INT_MAX , V | E , " flags " } ,
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# if FF_API_MPEGVIDEO_GLOBAL_OPTS
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{ " aiv " , " h263 alternative inter vlc " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_H263P_AIV } , INT_MIN , INT_MAX , V | E , " flags " } ,
{ " slice " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_H263P_SLICE_STRUCT } , INT_MIN , INT_MAX , V | E , " flags " } ,
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# endif
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{ " ilme " , " interlaced motion estimation " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_INTERLACED_ME } , INT_MIN , INT_MAX , V | E , " flags " } ,
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# if FF_API_MPEGVIDEO_GLOBAL_OPTS
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{ " scan_offset " , " will reserve space for svcd scan offset user data " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_SVCD_SCAN_OFFSET } , INT_MIN , INT_MAX , V | E , " flags " } ,
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# endif
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{ " cgop " , " closed gop " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG_CLOSED_GOP } , INT_MIN , INT_MAX , V | E , " flags " } ,
{ " fast " , " allow non spec compliant speedup tricks " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_FAST } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
{ " sgop " , " strictly enforce gop size " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_STRICT_GOP } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
{ " noout " , " skip bitstream encoding " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_NO_OUTPUT } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
{ " local_header " , " place global headers at every keyframe instead of in extradata " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_LOCAL_HEADER } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
{ " sub_id " , NULL , OFFSET ( sub_id ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " me_method " , " set motion estimation method " , OFFSET ( me_method ) , FF_OPT_TYPE_INT , { . dbl = ME_EPZS } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " zero " , " zero motion estimation (fastest) " , 0 , FF_OPT_TYPE_CONST , { . dbl = ME_ZERO } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " full " , " full motion estimation (slowest) " , 0 , FF_OPT_TYPE_CONST , { . dbl = ME_FULL } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " epzs " , " EPZS motion estimation (default) " , 0 , FF_OPT_TYPE_CONST , { . dbl = ME_EPZS } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " esa " , " esa motion estimation (alias for full) " , 0 , FF_OPT_TYPE_CONST , { . dbl = ME_FULL } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " tesa " , " tesa motion estimation " , 0 , FF_OPT_TYPE_CONST , { . dbl = ME_TESA } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " dia " , " dia motion estimation (alias for epzs) " , 0 , FF_OPT_TYPE_CONST , { . dbl = ME_EPZS } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " log " , " log motion estimation " , 0 , FF_OPT_TYPE_CONST , { . dbl = ME_LOG } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " phods " , " phods motion estimation " , 0 , FF_OPT_TYPE_CONST , { . dbl = ME_PHODS } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " x1 " , " X1 motion estimation " , 0 , FF_OPT_TYPE_CONST , { . dbl = ME_X1 } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " hex " , " hex motion estimation " , 0 , FF_OPT_TYPE_CONST , { . dbl = ME_HEX } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " umh " , " umh motion estimation " , 0 , FF_OPT_TYPE_CONST , { . dbl = ME_UMH } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " iter " , " iter motion estimation " , 0 , FF_OPT_TYPE_CONST , { . dbl = ME_ITER } , INT_MIN , INT_MAX , V | E , " me_method " } ,
{ " extradata_size " , NULL , OFFSET ( extradata_size ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
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{ " time_base " , NULL , OFFSET ( time_base ) , FF_OPT_TYPE_RATIONAL , { . dbl = 0 } , INT_MIN , INT_MAX } ,
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{ " g " , " set the group of picture size " , OFFSET ( gop_size ) , FF_OPT_TYPE_INT , { . dbl = 12 } , INT_MIN , INT_MAX , V | E } ,
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{ " ar " , " set audio sampling rate (in Hz) " , OFFSET ( sample_rate ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , A | D | E } ,
{ " ac " , " set number of audio channels " , OFFSET ( channels ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , A | D | E } ,
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{ " cutoff " , " set cutoff bandwidth " , OFFSET ( cutoff ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , A | E } ,
{ " frame_size " , NULL , OFFSET ( frame_size ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , A | E } ,
{ " frame_number " , NULL , OFFSET ( frame_number ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " delay " , NULL , OFFSET ( delay ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
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{ " qcomp " , " video quantizer scale compression (VBR) " , OFFSET ( qcompress ) , FF_OPT_TYPE_FLOAT , { . dbl = 0.5 } , - FLT_MAX , FLT_MAX , V | E } ,
{ " qblur " , " video quantizer scale blur (VBR) " , OFFSET ( qblur ) , FF_OPT_TYPE_FLOAT , { . dbl = 0.5 } , 0 , FLT_MAX , V | E } ,
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{ " qmin " , " min video quantizer scale (VBR) " , OFFSET ( qmin ) , FF_OPT_TYPE_INT , { . dbl = 2 } , 0 , 69 , V | E } ,
{ " qmax " , " max video quantizer scale (VBR) " , OFFSET ( qmax ) , FF_OPT_TYPE_INT , { . dbl = 31 } , 0 , 69 , V | E } ,
{ " qdiff " , " max difference between the quantizer scale (VBR) " , OFFSET ( max_qdiff ) , FF_OPT_TYPE_INT , { . dbl = 3 } , INT_MIN , INT_MAX , V | E } ,
{ " bf " , " use 'frames' B frames " , OFFSET ( max_b_frames ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , 0 , FF_MAX_B_FRAMES , V | E } ,
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{ " b_qfactor " , " qp factor between p and b frames " , OFFSET ( b_quant_factor ) , FF_OPT_TYPE_FLOAT , { . dbl = 1.25 } , - FLT_MAX , FLT_MAX , V | E } ,
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{ " rc_strategy " , " ratecontrol method " , OFFSET ( rc_strategy ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " b_strategy " , " strategy to choose between I/P/B-frames " , OFFSET ( b_frame_strategy ) , FF_OPT_TYPE_INT , { . dbl = 0 } , INT_MIN , INT_MAX , V | E } ,
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# if FF_API_X264_GLOBAL_OPTS
{ " wpredp " , " weighted prediction analysis method " , OFFSET ( weighted_p_pred ) , FF_OPT_TYPE_INT , { . dbl = - 1 } , INT_MIN , INT_MAX , V | E } ,
# endif
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{ " ps " , " rtp payload size in bytes " , OFFSET ( rtp_payload_size ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " mv_bits " , NULL , OFFSET ( mv_bits ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " header_bits " , NULL , OFFSET ( header_bits ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " i_tex_bits " , NULL , OFFSET ( i_tex_bits ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " p_tex_bits " , NULL , OFFSET ( p_tex_bits ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " i_count " , NULL , OFFSET ( i_count ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " p_count " , NULL , OFFSET ( p_count ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " skip_count " , NULL , OFFSET ( skip_count ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " misc_bits " , NULL , OFFSET ( misc_bits ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " frame_bits " , NULL , OFFSET ( frame_bits ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " codec_tag " , NULL , OFFSET ( codec_tag ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " bug " , " workaround not auto detected encoder bugs " , OFFSET ( workaround_bugs ) , FF_OPT_TYPE_FLAGS , { . dbl = FF_BUG_AUTODETECT } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " autodetect " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_AUTODETECT } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " old_msmpeg4 " , " some old lavc generated msmpeg4v3 files (no autodetection) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_OLD_MSMPEG4 } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " xvid_ilace " , " Xvid interlacing bug (autodetected if fourcc==XVIX) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_XVID_ILACE } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " ump4 " , " (autodetected if fourcc==UMP4) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_UMP4 } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " no_padding " , " padding bug (autodetected) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_NO_PADDING } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " amv " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_AMV } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " ac_vlc " , " illegal vlc bug (autodetected per fourcc) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_AC_VLC } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " qpel_chroma " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_QPEL_CHROMA } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " std_qpel " , " old standard qpel (autodetected per fourcc/version) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_STD_QPEL } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " qpel_chroma2 " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_QPEL_CHROMA2 } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " direct_blocksize " , " direct-qpel-blocksize bug (autodetected per fourcc/version) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_DIRECT_BLOCKSIZE } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " edge " , " edge padding bug (autodetected per fourcc/version) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_EDGE } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " hpel_chroma " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_HPEL_CHROMA } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " dc_clip " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_DC_CLIP } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " ms " , " workaround various bugs in microsofts broken decoders " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_MS } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " trunc " , " trancated frames " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_BUG_TRUNCATED } , INT_MIN , INT_MAX , V | D , " bug " } ,
{ " lelim " , " single coefficient elimination threshold for luminance (negative values also consider dc coefficient) " , OFFSET ( luma_elim_threshold ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " celim " , " single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) " , OFFSET ( chroma_elim_threshold ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " strict " , " how strictly to follow the standards " , OFFSET ( strict_std_compliance ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , A | V | D | E , " strict " } ,
{ " very " , " strictly conform to a older more strict version of the spec or reference software " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_COMPLIANCE_VERY_STRICT } , INT_MIN , INT_MAX , V | D | E , " strict " } ,
{ " strict " , " strictly conform to all the things in the spec no matter what consequences " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_COMPLIANCE_STRICT } , INT_MIN , INT_MAX , V | D | E , " strict " } ,
{ " normal " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_COMPLIANCE_NORMAL } , INT_MIN , INT_MAX , V | D | E , " strict " } ,
{ " unofficial " , " allow unofficial extensions " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_COMPLIANCE_UNOFFICIAL } , INT_MIN , INT_MAX , V | D | E , " strict " } ,
{ " experimental " , " allow non standardized experimental things " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_COMPLIANCE_EXPERIMENTAL } , INT_MIN , INT_MAX , V | D | E , " strict " } ,
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{ " b_qoffset " , " qp offset between P and B frames " , OFFSET ( b_quant_offset ) , FF_OPT_TYPE_FLOAT , { . dbl = 1.25 } , - FLT_MAX , FLT_MAX , V | E } ,
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{ " er " , " set error detection aggressivity " , OFFSET ( error_recognition ) , FF_OPT_TYPE_INT , { . dbl = FF_ER_CAREFUL } , INT_MIN , INT_MAX , A | V | D , " er " } ,
{ " careful " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_ER_CAREFUL } , INT_MIN , INT_MAX , V | D , " er " } ,
{ " compliant " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_ER_COMPLIANT } , INT_MIN , INT_MAX , V | D , " er " } ,
{ " aggressive " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_ER_AGGRESSIVE } , INT_MIN , INT_MAX , V | D , " er " } ,
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# if FF_API_VERY_AGGRESSIVE
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{ " very_aggressive " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_ER_VERY_AGGRESSIVE } , INT_MIN , INT_MAX , V | D , " er " } ,
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# endif /* FF_API_VERY_AGGRESSIVE */
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{ " explode " , " abort decoding on error recognition " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_ER_EXPLODE } , INT_MIN , INT_MAX , V | D , " er " } ,
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{ " has_b_frames " , NULL , OFFSET ( has_b_frames ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " block_align " , NULL , OFFSET ( block_align ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " parse_only " , NULL , OFFSET ( parse_only ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " mpeg_quant " , " use MPEG quantizers instead of H.263 " , OFFSET ( mpeg_quant ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
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{ " stats_out " , NULL , OFFSET ( stats_out ) , FF_OPT_TYPE_STRING , { . str = NULL } , CHAR_MIN , CHAR_MAX } ,
{ " stats_in " , NULL , OFFSET ( stats_in ) , FF_OPT_TYPE_STRING , { . str = NULL } , CHAR_MIN , CHAR_MAX } ,
{ " qsquish " , " how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) " , OFFSET ( rc_qsquish ) , FF_OPT_TYPE_FLOAT , { . dbl = DEFAULT } , 0 , 99 , V | E } ,
{ " rc_qmod_amp " , " experimental quantizer modulation " , OFFSET ( rc_qmod_amp ) , FF_OPT_TYPE_FLOAT , { . dbl = DEFAULT } , - FLT_MAX , FLT_MAX , V | E } ,
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{ " rc_qmod_freq " , " experimental quantizer modulation " , OFFSET ( rc_qmod_freq ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " rc_override_count " , NULL , OFFSET ( rc_override_count ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
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{ " rc_eq " , " set rate control equation " , OFFSET ( rc_eq ) , FF_OPT_TYPE_STRING , { . str = NULL } , CHAR_MIN , CHAR_MAX , V | E } ,
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{ " maxrate " , " set max video bitrate tolerance (in bits/s) " , OFFSET ( rc_max_rate ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " minrate " , " set min video bitrate tolerance (in bits/s) " , OFFSET ( rc_min_rate ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " bufsize " , " set ratecontrol buffer size (in bits) " , OFFSET ( rc_buffer_size ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , A | V | E } ,
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{ " rc_buf_aggressivity " , " currently useless " , OFFSET ( rc_buffer_aggressivity ) , FF_OPT_TYPE_FLOAT , { . dbl = 1.0 } , - FLT_MAX , FLT_MAX , V | E } ,
{ " i_qfactor " , " qp factor between P and I frames " , OFFSET ( i_quant_factor ) , FF_OPT_TYPE_FLOAT , { . dbl = - 0.8 } , - FLT_MAX , FLT_MAX , V | E } ,
{ " i_qoffset " , " qp offset between P and I frames " , OFFSET ( i_quant_offset ) , FF_OPT_TYPE_FLOAT , { . dbl = 0.0 } , - FLT_MAX , FLT_MAX , V | E } ,
{ " rc_init_cplx " , " initial complexity for 1-pass encoding " , OFFSET ( rc_initial_cplx ) , FF_OPT_TYPE_FLOAT , { . dbl = DEFAULT } , - FLT_MAX , FLT_MAX , V | E } ,
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{ " dct " , " DCT algorithm " , OFFSET ( dct_algo ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , 0 , INT_MAX , V | E , " dct " } ,
{ " auto " , " autoselect a good one (default) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DCT_AUTO } , INT_MIN , INT_MAX , V | E , " dct " } ,
{ " fastint " , " fast integer " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DCT_FASTINT } , INT_MIN , INT_MAX , V | E , " dct " } ,
{ " int " , " accurate integer " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DCT_INT } , INT_MIN , INT_MAX , V | E , " dct " } ,
{ " mmx " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DCT_MMX } , INT_MIN , INT_MAX , V | E , " dct " } ,
{ " mlib " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DCT_MLIB } , INT_MIN , INT_MAX , V | E , " dct " } ,
{ " altivec " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DCT_ALTIVEC } , INT_MIN , INT_MAX , V | E , " dct " } ,
{ " faan " , " floating point AAN DCT " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DCT_FAAN } , INT_MIN , INT_MAX , V | E , " dct " } ,
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{ " lumi_mask " , " compresses bright areas stronger than medium ones " , OFFSET ( lumi_masking ) , FF_OPT_TYPE_FLOAT , { . dbl = 0 } , - FLT_MAX , FLT_MAX , V | E } ,
{ " tcplx_mask " , " temporal complexity masking " , OFFSET ( temporal_cplx_masking ) , FF_OPT_TYPE_FLOAT , { . dbl = 0 } , - FLT_MAX , FLT_MAX , V | E } ,
{ " scplx_mask " , " spatial complexity masking " , OFFSET ( spatial_cplx_masking ) , FF_OPT_TYPE_FLOAT , { . dbl = 0 } , - FLT_MAX , FLT_MAX , V | E } ,
{ " p_mask " , " inter masking " , OFFSET ( p_masking ) , FF_OPT_TYPE_FLOAT , { . dbl = 0 } , - FLT_MAX , FLT_MAX , V | E } ,
{ " dark_mask " , " compresses dark areas stronger than medium ones " , OFFSET ( dark_masking ) , FF_OPT_TYPE_FLOAT , { . dbl = 0 } , - FLT_MAX , FLT_MAX , V | E } ,
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{ " idct " , " select IDCT implementation " , OFFSET ( idct_algo ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , 0 , INT_MAX , V | E | D , " idct " } ,
{ " auto " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_AUTO } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " int " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_INT } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " simple " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_SIMPLE } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " simplemmx " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_SIMPLEMMX } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " libmpeg2mmx " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_LIBMPEG2MMX } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " ps2 " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_PS2 } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " mlib " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_MLIB } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " arm " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_ARM } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " altivec " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_ALTIVEC } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " sh4 " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_SH4 } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " simplearm " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_SIMPLEARM } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " simplearmv5te " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_SIMPLEARMV5TE } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " simplearmv6 " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_SIMPLEARMV6 } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " simpleneon " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_SIMPLENEON } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " simplealpha " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_SIMPLEALPHA } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " h264 " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_H264 } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " vp3 " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_VP3 } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " ipp " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_IPP } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " xvidmmx " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_XVIDMMX } , INT_MIN , INT_MAX , V | E | D , " idct " } ,
{ " faani " , " floating point AAN IDCT " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_IDCT_FAAN } , INT_MIN , INT_MAX , V | D | E , " idct " } ,
{ " slice_count " , NULL , OFFSET ( slice_count ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " ec " , " set error concealment strategy " , OFFSET ( error_concealment ) , FF_OPT_TYPE_FLAGS , { . dbl = 3 } , INT_MIN , INT_MAX , V | D , " ec " } ,
{ " guess_mvs " , " iterative motion vector (MV) search (slow) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_EC_GUESS_MVS } , INT_MIN , INT_MAX , V | D , " ec " } ,
{ " deblock " , " use strong deblock filter for damaged MBs " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_EC_DEBLOCK } , INT_MIN , INT_MAX , V | D , " ec " } ,
{ " bits_per_coded_sample " , NULL , OFFSET ( bits_per_coded_sample ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " pred " , " prediction method " , OFFSET ( prediction_method ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E , " pred " } ,
{ " left " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PRED_LEFT } , INT_MIN , INT_MAX , V | E , " pred " } ,
{ " plane " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PRED_PLANE } , INT_MIN , INT_MAX , V | E , " pred " } ,
{ " median " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PRED_MEDIAN } , INT_MIN , INT_MAX , V | E , " pred " } ,
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{ " aspect " , " sample aspect ratio " , OFFSET ( sample_aspect_ratio ) , FF_OPT_TYPE_RATIONAL , { . dbl = 0 } , 0 , 10 , V | E } ,
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{ " debug " , " print specific debug info " , OFFSET ( debug ) , FF_OPT_TYPE_FLAGS , { . dbl = DEFAULT } , 0 , INT_MAX , V | A | S | E | D , " debug " } ,
{ " pict " , " picture info " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_PICT_INFO } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " rc " , " rate control " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_RC } , INT_MIN , INT_MAX , V | E , " debug " } ,
{ " bitstream " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_BITSTREAM } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " mb_type " , " macroblock (MB) type " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_MB_TYPE } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " qp " , " per-block quantization parameter (QP) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_QP } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " mv " , " motion vector " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_MV } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " dct_coeff " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_DCT_COEFF } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " skip " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_SKIP } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " startcode " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_STARTCODE } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " pts " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_PTS } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " er " , " error recognition " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_ER } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " mmco " , " memory management control operations (H.264) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_MMCO } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " bugs " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_BUGS } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " vis_qp " , " visualize quantization parameter (QP), lower QP are tinted greener " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_VIS_QP } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " vis_mb_type " , " visualize block types " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_VIS_MB_TYPE } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " buffers " , " picture buffer allocations " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_BUFFERS } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " thread_ops " , " threading operations " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_THREADS } , INT_MIN , INT_MAX , V | D , " debug " } ,
{ " vismv " , " visualize motion vectors (MVs) " , OFFSET ( debug_mv ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , 0 , INT_MAX , V | D , " debug_mv " } ,
{ " pf " , " forward predicted MVs of P-frames " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_VIS_MV_P_FOR } , INT_MIN , INT_MAX , V | D , " debug_mv " } ,
{ " bf " , " forward predicted MVs of B-frames " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_VIS_MV_B_FOR } , INT_MIN , INT_MAX , V | D , " debug_mv " } ,
{ " bb " , " backward predicted MVs of B-frames " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_DEBUG_VIS_MV_B_BACK } , INT_MIN , INT_MAX , V | D , " debug_mv " } ,
{ " cmp " , " full pel me compare function " , OFFSET ( me_cmp ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " subcmp " , " sub pel me compare function " , OFFSET ( me_sub_cmp ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " mbcmp " , " macroblock compare function " , OFFSET ( mb_cmp ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " ildctcmp " , " interlaced dct compare function " , OFFSET ( ildct_cmp ) , FF_OPT_TYPE_INT , { . dbl = FF_CMP_VSAD } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " dia_size " , " diamond type & size for motion estimation " , OFFSET ( dia_size ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " last_pred " , " amount of motion predictors from the previous frame " , OFFSET ( last_predictor_count ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " preme " , " pre motion estimation " , OFFSET ( pre_me ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " precmp " , " pre motion estimation compare function " , OFFSET ( me_pre_cmp ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " sad " , " sum of absolute differences, fast (default) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_SAD } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " sse " , " sum of squared errors " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_SSE } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " satd " , " sum of absolute Hadamard transformed differences " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_SATD } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " dct " , " sum of absolute DCT transformed differences " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_DCT } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " psnr " , " sum of squared quantization errors (avoid, low quality) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_PSNR } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " bit " , " number of bits needed for the block " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_BIT } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " rd " , " rate distortion optimal, slow " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_RD } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " zero " , " 0 " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_ZERO } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " vsad " , " sum of absolute vertical differences " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_VSAD } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " vsse " , " sum of squared vertical differences " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_VSSE } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " nsse " , " noise preserving sum of squared differences " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_NSSE } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
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# if CONFIG_SNOW_ENCODER
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{ " w53 " , " 5/3 wavelet, only used in snow " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_W53 } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " w97 " , " 9/7 wavelet, only used in snow " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_W97 } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
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# endif
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{ " dctmax " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_DCTMAX } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " chroma " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CMP_CHROMA } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
{ " pre_dia_size " , " diamond type & size for motion estimation pre-pass " , OFFSET ( pre_dia_size ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " subq " , " sub pel motion estimation quality " , OFFSET ( me_subpel_quality ) , FF_OPT_TYPE_INT , { . dbl = 8 } , INT_MIN , INT_MAX , V | E } ,
{ " dtg_active_format " , NULL , OFFSET ( dtg_active_format ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " me_range " , " limit motion vectors range (1023 for DivX player) " , OFFSET ( me_range ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " ibias " , " intra quant bias " , OFFSET ( intra_quant_bias ) , FF_OPT_TYPE_INT , { . dbl = FF_DEFAULT_QUANT_BIAS } , INT_MIN , INT_MAX , V | E } ,
{ " pbias " , " inter quant bias " , OFFSET ( inter_quant_bias ) , FF_OPT_TYPE_INT , { . dbl = FF_DEFAULT_QUANT_BIAS } , INT_MIN , INT_MAX , V | E } ,
{ " color_table_id " , NULL , OFFSET ( color_table_id ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " internal_buffer_count " , NULL , OFFSET ( internal_buffer_count ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " global_quality " , NULL , OFFSET ( global_quality ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " coder " , NULL , OFFSET ( coder_type ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E , " coder " } ,
{ " vlc " , " variable length coder / huffman coder " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CODER_TYPE_VLC } , INT_MIN , INT_MAX , V | E , " coder " } ,
{ " ac " , " arithmetic coder " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CODER_TYPE_AC } , INT_MIN , INT_MAX , V | E , " coder " } ,
{ " raw " , " raw (no encoding) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CODER_TYPE_RAW } , INT_MIN , INT_MAX , V | E , " coder " } ,
{ " rle " , " run-length coder " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CODER_TYPE_RLE } , INT_MIN , INT_MAX , V | E , " coder " } ,
{ " deflate " , " deflate-based coder " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_CODER_TYPE_DEFLATE } , INT_MIN , INT_MAX , V | E , " coder " } ,
{ " context " , " context model " , OFFSET ( context_model ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " slice_flags " , NULL , OFFSET ( slice_flags ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " xvmc_acceleration " , NULL , OFFSET ( xvmc_acceleration ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " mbd " , " macroblock decision algorithm (high quality mode) " , OFFSET ( mb_decision ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E , " mbd " } ,
{ " simple " , " use mbcmp (default) " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_MB_DECISION_SIMPLE } , INT_MIN , INT_MAX , V | E , " mbd " } ,
{ " bits " , " use fewest bits " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_MB_DECISION_BITS } , INT_MIN , INT_MAX , V | E , " mbd " } ,
{ " rd " , " use best rate distortion " , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_MB_DECISION_RD } , INT_MIN , INT_MAX , V | E , " mbd " } ,
{ " stream_codec_tag " , NULL , OFFSET ( stream_codec_tag ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " sc_threshold " , " scene change threshold " , OFFSET ( scenechange_threshold ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " lmin " , " min lagrange factor (VBR) " , OFFSET ( lmin ) , FF_OPT_TYPE_INT , { . dbl = 2 * FF_QP2LAMBDA } , 0 , INT_MAX , V | E } ,
{ " lmax " , " max lagrange factor (VBR) " , OFFSET ( lmax ) , FF_OPT_TYPE_INT , { . dbl = 31 * FF_QP2LAMBDA } , 0 , INT_MAX , V | E } ,
{ " nr " , " noise reduction " , OFFSET ( noise_reduction ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " rc_init_occupancy " , " number of bits which should be loaded into the rc buffer before decoding starts " , OFFSET ( rc_initial_buffer_occupancy ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " inter_threshold " , NULL , OFFSET ( inter_threshold ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " flags2 " , NULL , OFFSET ( flags2 ) , FF_OPT_TYPE_FLAGS , { . dbl = CODEC_FLAG2_FASTPSKIP | CODEC_FLAG2_BIT_RESERVOIR | CODEC_FLAG2_PSY | CODEC_FLAG2_MBTREE } , 0 , UINT_MAX , V | A | E | D , " flags2 " } ,
{ " error " , NULL , OFFSET ( error_rate ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
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# if FF_API_ANTIALIAS_ALGO
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{ " antialias " , " MP3 antialias algorithm " , OFFSET ( antialias_algo ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | D , " aa " } ,
{ " auto " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_AA_AUTO } , INT_MIN , INT_MAX , V | D , " aa " } ,
{ " fastint " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_AA_FASTINT } , INT_MIN , INT_MAX , V | D , " aa " } ,
{ " int " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_AA_INT } , INT_MIN , INT_MAX , V | D , " aa " } ,
{ " float " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_AA_FLOAT } , INT_MIN , INT_MAX , V | D , " aa " } ,
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# endif
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{ " qns " , " quantizer noise shaping " , OFFSET ( quantizer_noise_shaping ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " threads " , NULL , OFFSET ( thread_count ) , FF_OPT_TYPE_INT , { . dbl = 1 } , INT_MIN , INT_MAX , V | E | D } ,
{ " me_threshold " , " motion estimaton threshold " , OFFSET ( me_threshold ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " mb_threshold " , " macroblock threshold " , OFFSET ( mb_threshold ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " dc " , " intra_dc_precision " , OFFSET ( intra_dc_precision ) , FF_OPT_TYPE_INT , { . dbl = 0 } , INT_MIN , INT_MAX , V | E } ,
{ " nssew " , " nsse weight " , OFFSET ( nsse_weight ) , FF_OPT_TYPE_INT , { . dbl = 8 } , INT_MIN , INT_MAX , V | E } ,
{ " skip_top " , " number of macroblock rows at the top which are skipped " , OFFSET ( skip_top ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | D } ,
{ " skip_bottom " , " number of macroblock rows at the bottom which are skipped " , OFFSET ( skip_bottom ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | D } ,
{ " profile " , NULL , OFFSET ( profile ) , FF_OPT_TYPE_INT , { . dbl = FF_PROFILE_UNKNOWN } , INT_MIN , INT_MAX , V | A | E , " profile " } ,
{ " unknown " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PROFILE_UNKNOWN } , INT_MIN , INT_MAX , V | A | E , " profile " } ,
{ " aac_main " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PROFILE_AAC_MAIN } , INT_MIN , INT_MAX , A | E , " profile " } ,
{ " aac_low " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PROFILE_AAC_LOW } , INT_MIN , INT_MAX , A | E , " profile " } ,
{ " aac_ssr " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PROFILE_AAC_SSR } , INT_MIN , INT_MAX , A | E , " profile " } ,
{ " aac_ltp " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PROFILE_AAC_LTP } , INT_MIN , INT_MAX , A | E , " profile " } ,
{ " dts " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PROFILE_DTS } , INT_MIN , INT_MAX , A | E , " profile " } ,
{ " dts_es " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PROFILE_DTS_ES } , INT_MIN , INT_MAX , A | E , " profile " } ,
{ " dts_96_24 " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PROFILE_DTS_96_24 } , INT_MIN , INT_MAX , A | E , " profile " } ,
{ " dts_hd_hra " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PROFILE_DTS_HD_HRA } , INT_MIN , INT_MAX , A | E , " profile " } ,
{ " dts_hd_ma " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_PROFILE_DTS_HD_MA } , INT_MIN , INT_MAX , A | E , " profile " } ,
{ " level " , NULL , OFFSET ( level ) , FF_OPT_TYPE_INT , { . dbl = FF_LEVEL_UNKNOWN } , INT_MIN , INT_MAX , V | A | E , " level " } ,
{ " unknown " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_LEVEL_UNKNOWN } , INT_MIN , INT_MAX , V | A | E , " level " } ,
{ " lowres " , " decode at 1= 1/2, 2=1/4, 3=1/8 resolutions " , OFFSET ( lowres ) , FF_OPT_TYPE_INT , { . dbl = 0 } , 0 , INT_MAX , V | A | D } ,
{ " skip_threshold " , " frame skip threshold " , OFFSET ( frame_skip_threshold ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " skip_factor " , " frame skip factor " , OFFSET ( frame_skip_factor ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " skip_exp " , " frame skip exponent " , OFFSET ( frame_skip_exp ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " skipcmp " , " frame skip compare function " , OFFSET ( frame_skip_cmp ) , FF_OPT_TYPE_INT , { . dbl = FF_CMP_DCTMAX } , INT_MIN , INT_MAX , V | E , " cmp_func " } ,
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{ " border_mask " , " increases the quantizer for macroblocks close to borders " , OFFSET ( border_masking ) , FF_OPT_TYPE_FLOAT , { . dbl = DEFAULT } , - FLT_MAX , FLT_MAX , V | E } ,
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{ " mblmin " , " min macroblock lagrange factor (VBR) " , OFFSET ( mb_lmin ) , FF_OPT_TYPE_INT , { . dbl = FF_QP2LAMBDA * 2 } , 1 , FF_LAMBDA_MAX , V | E } ,
{ " mblmax " , " max macroblock lagrange factor (VBR) " , OFFSET ( mb_lmax ) , FF_OPT_TYPE_INT , { . dbl = FF_QP2LAMBDA * 31 } , 1 , FF_LAMBDA_MAX , V | E } ,
{ " mepc " , " motion estimation bitrate penalty compensation (1.0 = 256) " , OFFSET ( me_penalty_compensation ) , FF_OPT_TYPE_INT , { . dbl = 256 } , INT_MIN , INT_MAX , V | E } ,
{ " skip_loop_filter " , NULL , OFFSET ( skip_loop_filter ) , FF_OPT_TYPE_INT , { . dbl = AVDISCARD_DEFAULT } , INT_MIN , INT_MAX , V | D , " avdiscard " } ,
{ " skip_idct " , NULL , OFFSET ( skip_idct ) , FF_OPT_TYPE_INT , { . dbl = AVDISCARD_DEFAULT } , INT_MIN , INT_MAX , V | D , " avdiscard " } ,
{ " skip_frame " , NULL , OFFSET ( skip_frame ) , FF_OPT_TYPE_INT , { . dbl = AVDISCARD_DEFAULT } , INT_MIN , INT_MAX , V | D , " avdiscard " } ,
{ " none " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = AVDISCARD_NONE } , INT_MIN , INT_MAX , V | D , " avdiscard " } ,
{ " default " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = AVDISCARD_DEFAULT } , INT_MIN , INT_MAX , V | D , " avdiscard " } ,
{ " noref " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = AVDISCARD_NONREF } , INT_MIN , INT_MAX , V | D , " avdiscard " } ,
{ " bidir " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = AVDISCARD_BIDIR } , INT_MIN , INT_MAX , V | D , " avdiscard " } ,
{ " nokey " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = AVDISCARD_NONKEY } , INT_MIN , INT_MAX , V | D , " avdiscard " } ,
{ " all " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = AVDISCARD_ALL } , INT_MIN , INT_MAX , V | D , " avdiscard " } ,
{ " bidir_refine " , " refine the two motion vectors used in bidirectional macroblocks " , OFFSET ( bidir_refine ) , FF_OPT_TYPE_INT , { . dbl = 1 } , 0 , 4 , V | E } ,
{ " brd_scale " , " downscales frames for dynamic B-frame decision " , OFFSET ( brd_scale ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , 0 , 10 , V | E } ,
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# if FF_API_X264_GLOBAL_OPTS
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{ " crf " , " enables constant quality mode, and selects the quality (x264/VP8) " , OFFSET ( crf ) , FF_OPT_TYPE_FLOAT , { . dbl = DEFAULT } , 0 , 63 , V | E } ,
{ " cqp " , " constant quantization parameter rate control method " , OFFSET ( cqp ) , FF_OPT_TYPE_INT , { . dbl = - 1 } , INT_MIN , INT_MAX , V | E } ,
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# endif
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{ " keyint_min " , " minimum interval between IDR-frames " , OFFSET ( keyint_min ) , FF_OPT_TYPE_INT , { . dbl = 25 } , INT_MIN , INT_MAX , V | E } ,
{ " refs " , " reference frames to consider for motion compensation " , OFFSET ( refs ) , FF_OPT_TYPE_INT , { . dbl = 1 } , INT_MIN , INT_MAX , V | E } ,
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{ " chromaoffset " , " chroma qp offset from luma " , OFFSET ( chromaoffset ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " bframebias " , " influences how often B-frames are used " , OFFSET ( bframebias ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E } ,
{ " trellis " , " rate-distortion optimal quantization " , OFFSET ( trellis ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | A | E } ,
{ " directpred " , " direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto) " , OFFSET ( directpred ) , FF_OPT_TYPE_INT , { . dbl = 2 } , INT_MIN , INT_MAX , V | E } ,
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# if FF_API_X264_GLOBAL_OPTS
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{ " bpyramid " , " allows B-frames to be used as references for predicting " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_BPYRAMID } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
{ " wpred " , " weighted biprediction for b-frames (H.264) " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_WPRED } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
{ " mixed_refs " , " one reference per partition, as opposed to one reference per macroblock " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_MIXED_REFS } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
{ " dct8x8 " , " high profile 8x8 transform (H.264) " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_8X8DCT } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
{ " fastpskip " , " fast pskip (H.264) " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_FASTPSKIP } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
{ " aud " , " access unit delimiters (H.264) " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_AUD } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
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# endif
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{ " skiprd " , " RD optimal MB level residual skipping " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_SKIP_RD } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
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{ " complexityblur " , " reduce fluctuations in qp (before curve compression) " , OFFSET ( complexityblur ) , FF_OPT_TYPE_FLOAT , { . dbl = 20.0 } , FLT_MIN , FLT_MAX , V | E } ,
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{ " deblockalpha " , " in-loop deblocking filter alphac0 parameter " , OFFSET ( deblockalpha ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , - 6 , 6 , V | E } ,
{ " deblockbeta " , " in-loop deblocking filter beta parameter " , OFFSET ( deblockbeta ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , - 6 , 6 , V | E } ,
{ " partitions " , " macroblock subpartition sizes to consider " , OFFSET ( partitions ) , FF_OPT_TYPE_FLAGS , { . dbl = DEFAULT } , INT_MIN , INT_MAX , V | E , " partitions " } ,
{ " parti4x4 " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = X264_PART_I4X4 } , INT_MIN , INT_MAX , V | E , " partitions " } ,
{ " parti8x8 " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = X264_PART_I8X8 } , INT_MIN , INT_MAX , V | E , " partitions " } ,
{ " partp4x4 " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = X264_PART_P4X4 } , INT_MIN , INT_MAX , V | E , " partitions " } ,
{ " partp8x8 " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = X264_PART_P8X8 } , INT_MIN , INT_MAX , V | E , " partitions " } ,
{ " partb8x8 " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = X264_PART_B8X8 } , INT_MIN , INT_MAX , V | E , " partitions " } ,
{ " sc_factor " , " multiplied by qscale for each frame and added to scene_change_score " , OFFSET ( scenechange_factor ) , FF_OPT_TYPE_INT , { . dbl = 6 } , 0 , INT_MAX , V | E } ,
{ " mv0_threshold " , NULL , OFFSET ( mv0_threshold ) , FF_OPT_TYPE_INT , { . dbl = 256 } , 0 , INT_MAX , V | E } ,
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# if FF_API_MPEGVIDEO_GLOBAL_OPTS
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{ " ivlc " , " intra vlc table " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_INTRA_VLC } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
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# endif
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{ " b_sensitivity " , " adjusts sensitivity of b_frame_strategy 1 " , OFFSET ( b_sensitivity ) , FF_OPT_TYPE_INT , { . dbl = 40 } , 1 , INT_MAX , V | E } ,
{ " compression_level " , NULL , OFFSET ( compression_level ) , FF_OPT_TYPE_INT , { . dbl = FF_COMPRESSION_DEFAULT } , INT_MIN , INT_MAX , V | A | E } ,
{ " min_prediction_order " , NULL , OFFSET ( min_prediction_order ) , FF_OPT_TYPE_INT , { . dbl = - 1 } , INT_MIN , INT_MAX , A | E } ,
{ " max_prediction_order " , NULL , OFFSET ( max_prediction_order ) , FF_OPT_TYPE_INT , { . dbl = - 1 } , INT_MIN , INT_MAX , A | E } ,
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# if FF_API_FLAC_GLOBAL_OPTS
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{ " lpc_coeff_precision " , " deprecated, use flac-specific options " , OFFSET ( lpc_coeff_precision ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , 0 , INT_MAX , A | E } ,
{ " prediction_order_method " , " deprecated, use flac-specific options " , OFFSET ( prediction_order_method ) , FF_OPT_TYPE_INT , { . dbl = - 1 } , INT_MIN , INT_MAX , A | E } ,
{ " min_partition_order " , " deprecated, use flac-specific options " , OFFSET ( min_partition_order ) , FF_OPT_TYPE_INT , { . dbl = - 1 } , INT_MIN , INT_MAX , A | E } ,
{ " max_partition_order " , " deprecated, use flac-specific options " , OFFSET ( max_partition_order ) , FF_OPT_TYPE_INT , { . dbl = - 1 } , INT_MIN , INT_MAX , A | E } ,
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# endif
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{ " timecode_frame_start " , " GOP timecode frame start number, in non drop frame format " , OFFSET ( timecode_frame_start ) , FF_OPT_TYPE_INT64 , { . dbl = 0 } , 0 , INT64_MAX , V | E } ,
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# if FF_API_MPEGVIDEO_GLOBAL_OPTS
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{ " drop_frame_timecode " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_DROP_FRAME_TIMECODE } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
{ " non_linear_q " , " use non linear quantizer " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_NON_LINEAR_QUANT } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
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# endif
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# if FF_API_REQUEST_CHANNELS
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{ " request_channels " , " set desired number of audio channels " , OFFSET ( request_channels ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , 0 , INT_MAX , A | D } ,
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# endif
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# if FF_API_DRC_SCALE
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{ " drc_scale " , " percentage of dynamic range compression to apply " , OFFSET ( drc_scale ) , FF_OPT_TYPE_FLOAT , { . dbl = 1.0 } , 0.0 , 1.0 , A | D } ,
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# endif
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# if FF_API_LAME_GLOBAL_OPTS
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{ " reservoir " , " use bit reservoir " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_BIT_RESERVOIR } , INT_MIN , INT_MAX , A | E , " flags2 " } ,
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# endif
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# if FF_API_X264_GLOBAL_OPTS
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{ " mbtree " , " use macroblock tree ratecontrol (x264 only) " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_MBTREE } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
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# endif
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{ " bits_per_raw_sample " , NULL , OFFSET ( bits_per_raw_sample ) , FF_OPT_TYPE_INT , { . dbl = DEFAULT } , INT_MIN , INT_MAX } ,
{ " channel_layout " , NULL , OFFSET ( channel_layout ) , FF_OPT_TYPE_INT64 , { . dbl = DEFAULT } , 0 , INT64_MAX , A | E | D , " channel_layout " } ,
{ " request_channel_layout " , NULL , OFFSET ( request_channel_layout ) , FF_OPT_TYPE_INT64 , { . dbl = DEFAULT } , 0 , INT64_MAX , A | D , " request_channel_layout " } ,
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{ " rc_max_vbv_use " , NULL , OFFSET ( rc_max_available_vbv_use ) , FF_OPT_TYPE_FLOAT , { . dbl = 1.0 / 3 } , 0.0 , FLT_MAX , V | E } ,
{ " rc_min_vbv_use " , NULL , OFFSET ( rc_min_vbv_overflow_use ) , FF_OPT_TYPE_FLOAT , { . dbl = 3 } , 0.0 , FLT_MAX , V | E } ,
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{ " ticks_per_frame " , NULL , OFFSET ( ticks_per_frame ) , FF_OPT_TYPE_INT , { . dbl = 1 } , 1 , INT_MAX , A | V | E | D } ,
{ " color_primaries " , NULL , OFFSET ( color_primaries ) , FF_OPT_TYPE_INT , { . dbl = AVCOL_PRI_UNSPECIFIED } , 1 , AVCOL_PRI_NB - 1 , V | E | D } ,
{ " color_trc " , NULL , OFFSET ( color_trc ) , FF_OPT_TYPE_INT , { . dbl = AVCOL_TRC_UNSPECIFIED } , 1 , AVCOL_TRC_NB - 1 , V | E | D } ,
{ " colorspace " , NULL , OFFSET ( colorspace ) , FF_OPT_TYPE_INT , { . dbl = AVCOL_SPC_UNSPECIFIED } , 1 , AVCOL_SPC_NB - 1 , V | E | D } ,
{ " color_range " , NULL , OFFSET ( color_range ) , FF_OPT_TYPE_INT , { . dbl = AVCOL_RANGE_UNSPECIFIED } , 0 , AVCOL_RANGE_NB - 1 , V | E | D } ,
{ " chroma_sample_location " , NULL , OFFSET ( chroma_sample_location ) , FF_OPT_TYPE_INT , { . dbl = AVCHROMA_LOC_UNSPECIFIED } , 0 , AVCHROMA_LOC_NB - 1 , V | E | D } ,
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# if FF_API_X264_GLOBAL_OPTS
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{ " psy " , " use psycho visual optimization " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_PSY } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
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{ " psy_rd " , " specify psycho visual strength " , OFFSET ( psy_rd ) , FF_OPT_TYPE_FLOAT , { . dbl = - 1.0 } , - 1 , FLT_MAX , V | E } ,
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{ " psy_trellis " , " specify psycho visual trellis " , OFFSET ( psy_trellis ) , FF_OPT_TYPE_FLOAT , { . dbl = - 1 } , - 1 , FLT_MAX , V | E } ,
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{ " aq_mode " , " specify aq method " , OFFSET ( aq_mode ) , FF_OPT_TYPE_INT , { . dbl = - 1 } , - 1 , INT_MAX , V | E } ,
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{ " aq_strength " , " specify aq strength " , OFFSET ( aq_strength ) , FF_OPT_TYPE_FLOAT , { . dbl = - 1.0 } , - 1 , FLT_MAX , V | E } ,
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{ " rc_lookahead " , " specify number of frames to look ahead for frametype " , OFFSET ( rc_lookahead ) , FF_OPT_TYPE_INT , { . dbl = 40 } , 0 , INT_MAX , V | E } ,
{ " ssim " , " ssim will be calculated during encoding " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_SSIM } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
{ " intra_refresh " , " use periodic insertion of intra blocks instead of keyframes " , 0 , FF_OPT_TYPE_CONST , { . dbl = CODEC_FLAG2_INTRA_REFRESH } , INT_MIN , INT_MAX , V | E , " flags2 " } ,
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{ " crf_max " , " in crf mode, prevents vbv from lowering quality beyond this point " , OFFSET ( crf_max ) , FF_OPT_TYPE_FLOAT , { . dbl = DEFAULT } , 0 , 51 , V | E } ,
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# endif
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{ " log_level_offset " , " set the log level offset " , OFFSET ( log_level_offset ) , FF_OPT_TYPE_INT , { . dbl = 0 } , INT_MIN , INT_MAX } ,
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# if FF_API_FLAC_GLOBAL_OPTS
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{ " lpc_type " , " deprecated, use flac-specific options " , OFFSET ( lpc_type ) , FF_OPT_TYPE_INT , { . dbl = AV_LPC_TYPE_DEFAULT } , AV_LPC_TYPE_DEFAULT , AV_LPC_TYPE_NB - 1 , A | E } ,
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{ " none " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_LPC_TYPE_NONE } , INT_MIN , INT_MAX , A | E , " lpc_type " } ,
{ " fixed " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_LPC_TYPE_FIXED } , INT_MIN , INT_MAX , A | E , " lpc_type " } ,
{ " levinson " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_LPC_TYPE_LEVINSON } , INT_MIN , INT_MAX , A | E , " lpc_type " } ,
{ " cholesky " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_LPC_TYPE_CHOLESKY } , INT_MIN , INT_MAX , A | E , " lpc_type " } ,
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{ " lpc_passes " , " deprecated, use flac-specific options " , OFFSET ( lpc_passes ) , FF_OPT_TYPE_INT , { . dbl = - 1 } , INT_MIN , INT_MAX , A | E } ,
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# endif
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{ " slices " , " number of slices, used in parallelized decoding " , OFFSET ( slices ) , FF_OPT_TYPE_INT , { . dbl = 0 } , 0 , INT_MAX , V | E } ,
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{ " thread_type " , " select multithreading type " , OFFSET ( thread_type ) , FF_OPT_TYPE_FLAGS , { . dbl = FF_THREAD_SLICE | FF_THREAD_FRAME } , 0 , INT_MAX , V | E | D , " thread_type " } ,
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{ " slice " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_THREAD_SLICE } , INT_MIN , INT_MAX , V | E | D , " thread_type " } ,
{ " frame " , NULL , 0 , FF_OPT_TYPE_CONST , { . dbl = FF_THREAD_FRAME } , INT_MIN , INT_MAX , V | E | D , " thread_type " } ,
{ " audio_service_type " , " audio service type " , OFFSET ( audio_service_type ) , FF_OPT_TYPE_INT , { . dbl = AV_AUDIO_SERVICE_TYPE_MAIN } , 0 , AV_AUDIO_SERVICE_TYPE_NB - 1 , A | E , " audio_service_type " } ,
{ " ma " , " Main Audio Service " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_AUDIO_SERVICE_TYPE_MAIN } , INT_MIN , INT_MAX , A | E , " audio_service_type " } ,
{ " ef " , " Effects " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_AUDIO_SERVICE_TYPE_EFFECTS } , INT_MIN , INT_MAX , A | E , " audio_service_type " } ,
{ " vi " , " Visually Impaired " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED } , INT_MIN , INT_MAX , A | E , " audio_service_type " } ,
{ " hi " , " Hearing Impaired " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED } , INT_MIN , INT_MAX , A | E , " audio_service_type " } ,
{ " di " , " Dialogue " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_AUDIO_SERVICE_TYPE_DIALOGUE } , INT_MIN , INT_MAX , A | E , " audio_service_type " } ,
{ " co " , " Commentary " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_AUDIO_SERVICE_TYPE_COMMENTARY } , INT_MIN , INT_MAX , A | E , " audio_service_type " } ,
{ " em " , " Emergency " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_AUDIO_SERVICE_TYPE_EMERGENCY } , INT_MIN , INT_MAX , A | E , " audio_service_type " } ,
{ " vo " , " Voice Over " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_AUDIO_SERVICE_TYPE_VOICE_OVER } , INT_MIN , INT_MAX , A | E , " audio_service_type " } ,
{ " ka " , " Karaoke " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_AUDIO_SERVICE_TYPE_KARAOKE } , INT_MIN , INT_MAX , A | E , " audio_service_type " } ,
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{ " request_sample_fmt " , " sample format audio decoders should prefer " , OFFSET ( request_sample_fmt ) , FF_OPT_TYPE_INT , { . dbl = AV_SAMPLE_FMT_NONE } , AV_SAMPLE_FMT_NONE , AV_SAMPLE_FMT_NB - 1 , A | D , " request_sample_fmt " } ,
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{ " u8 " , " 8-bit unsigned integer " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_SAMPLE_FMT_U8 } , INT_MIN , INT_MAX , A | D , " request_sample_fmt " } ,
{ " s16 " , " 16-bit signed integer " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_SAMPLE_FMT_S16 } , INT_MIN , INT_MAX , A | D , " request_sample_fmt " } ,
{ " s32 " , " 32-bit signed integer " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_SAMPLE_FMT_S32 } , INT_MIN , INT_MAX , A | D , " request_sample_fmt " } ,
{ " flt " , " 32-bit float " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_SAMPLE_FMT_FLT } , INT_MIN , INT_MAX , A | D , " request_sample_fmt " } ,
{ " dbl " , " 64-bit double " , 0 , FF_OPT_TYPE_CONST , { . dbl = AV_SAMPLE_FMT_DBL } , INT_MIN , INT_MAX , A | D , " request_sample_fmt " } ,
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{ NULL } ,
} ;
# undef A
# undef V
# undef S
# undef E
# undef D
# undef DEFAULT
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static const AVClass av_codec_context_class = { " AVCodecContext " , context_to_name , options , LIBAVUTIL_VERSION_INT , OFFSET ( log_level_offset ) , . opt_find = opt_find } ;
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void avcodec_get_context_defaults2 ( AVCodecContext * s , enum AVMediaType codec_type ) {
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int flags = 0 ;
memset ( s , 0 , sizeof ( AVCodecContext ) ) ;
s - > av_class = & av_codec_context_class ;
s - > codec_type = codec_type ;
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if ( codec_type = = AVMEDIA_TYPE_AUDIO )
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flags = AV_OPT_FLAG_AUDIO_PARAM ;
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else if ( codec_type = = AVMEDIA_TYPE_VIDEO )
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flags = AV_OPT_FLAG_VIDEO_PARAM ;
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else if ( codec_type = = AVMEDIA_TYPE_SUBTITLE )
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flags = AV_OPT_FLAG_SUBTITLE_PARAM ;
av_opt_set_defaults2 ( s , flags , flags ) ;
s - > time_base = ( AVRational ) { 0 , 1 } ;
s - > get_buffer = avcodec_default_get_buffer ;
s - > release_buffer = avcodec_default_release_buffer ;
s - > get_format = avcodec_default_get_format ;
s - > execute = avcodec_default_execute ;
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s - > execute2 = avcodec_default_execute2 ;
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s - > sample_aspect_ratio = ( AVRational ) { 0 , 1 } ;
s - > pix_fmt = PIX_FMT_NONE ;
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s - > sample_fmt = AV_SAMPLE_FMT_NONE ;
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s - > palctrl = NULL ;
s - > reget_buffer = avcodec_default_reget_buffer ;
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s - > reordered_opaque = AV_NOPTS_VALUE ;
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}
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int avcodec_get_context_defaults3 ( AVCodecContext * s , AVCodec * codec ) {
avcodec_get_context_defaults2 ( s , codec ? codec - > type : AVMEDIA_TYPE_UNKNOWN ) ;
if ( codec & & codec - > priv_data_size ) {
if ( ! s - > priv_data ) {
s - > priv_data = av_mallocz ( codec - > priv_data_size ) ;
if ( ! s - > priv_data ) {
return AVERROR ( ENOMEM ) ;
}
}
if ( codec - > priv_class ) {
* ( AVClass * * ) s - > priv_data = codec - > priv_class ;
av_opt_set_defaults ( s - > priv_data ) ;
}
}
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if ( codec & & codec - > defaults ) {
int ret ;
AVCodecDefault * d = codec - > defaults ;
while ( d - > key ) {
ret = av_set_string3 ( s , d - > key , d - > value , 0 , NULL ) ;
av_assert0 ( ret > = 0 ) ;
d + + ;
}
}
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return 0 ;
}
AVCodecContext * avcodec_alloc_context3 ( AVCodec * codec ) {
AVCodecContext * avctx = av_malloc ( sizeof ( AVCodecContext ) ) ;
if ( avctx = = NULL ) return NULL ;
if ( avcodec_get_context_defaults3 ( avctx , codec ) < 0 ) {
av_free ( avctx ) ;
return NULL ;
}
return avctx ;
}
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# if FF_API_ALLOC_CONTEXT
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AVCodecContext * avcodec_alloc_context2 ( enum AVMediaType codec_type ) {
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AVCodecContext * avctx = av_malloc ( sizeof ( AVCodecContext ) ) ;
if ( avctx = = NULL ) return NULL ;
avcodec_get_context_defaults2 ( avctx , codec_type ) ;
return avctx ;
}
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# endif
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void avcodec_get_context_defaults ( AVCodecContext * s ) {
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avcodec_get_context_defaults2 ( s , AVMEDIA_TYPE_UNKNOWN ) ;
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}
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# if FF_API_ALLOC_CONTEXT
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AVCodecContext * avcodec_alloc_context ( void ) {
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return avcodec_alloc_context2 ( AVMEDIA_TYPE_UNKNOWN ) ;
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}
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# endif
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int avcodec_copy_context ( AVCodecContext * dest , const AVCodecContext * src )
{
if ( dest - > codec ) { // check that the dest context is uninitialized
av_log ( dest , AV_LOG_ERROR ,
" Tried to copy AVCodecContext %p into already-initialized %p \n " ,
src , dest ) ;
return AVERROR ( EINVAL ) ;
}
memcpy ( dest , src , sizeof ( * dest ) ) ;
/* set values specific to opened codecs back to their default state */
dest - > priv_data = NULL ;
dest - > codec = NULL ;
dest - > palctrl = NULL ;
dest - > slice_offset = NULL ;
dest - > internal_buffer = NULL ;
dest - > hwaccel = NULL ;
dest - > thread_opaque = NULL ;
/* reallocate values that should be allocated separately */
dest - > rc_eq = NULL ;
dest - > extradata = NULL ;
dest - > intra_matrix = NULL ;
dest - > inter_matrix = NULL ;
dest - > rc_override = NULL ;
if ( src - > rc_eq ) {
dest - > rc_eq = av_strdup ( src - > rc_eq ) ;
if ( ! dest - > rc_eq )
return AVERROR ( ENOMEM ) ;
}
# define alloc_and_copy_or_fail(obj, size, pad) \
if ( src - > obj & & size > 0 ) { \
dest - > obj = av_malloc ( size + pad ) ; \
if ( ! dest - > obj ) \
goto fail ; \
memcpy ( dest - > obj , src - > obj , size ) ; \
if ( pad ) \
memset ( ( ( uint8_t * ) dest - > obj ) + size , 0 , pad ) ; \
}
alloc_and_copy_or_fail ( extradata , src - > extradata_size ,
FF_INPUT_BUFFER_PADDING_SIZE ) ;
alloc_and_copy_or_fail ( intra_matrix , 64 * sizeof ( int16_t ) , 0 ) ;
alloc_and_copy_or_fail ( inter_matrix , 64 * sizeof ( int16_t ) , 0 ) ;
alloc_and_copy_or_fail ( rc_override , src - > rc_override_count * sizeof ( * src - > rc_override ) , 0 ) ;
# undef alloc_and_copy_or_fail
return 0 ;
fail :
av_freep ( & dest - > rc_override ) ;
av_freep ( & dest - > intra_matrix ) ;
av_freep ( & dest - > inter_matrix ) ;
av_freep ( & dest - > extradata ) ;
av_freep ( & dest - > rc_eq ) ;
return AVERROR ( ENOMEM ) ;
}
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const AVClass * avcodec_get_class ( void )
{
return & av_codec_context_class ;
}
