1/* 2 * Copyright (c) 2001 Fabrice Bellard 3 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> 4 * 5 * This file is part of Libav. 6 * 7 * Libav is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * Libav is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with Libav; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22/** 23 * @file 24 * Options definition for AVCodecContext. 25 */ 26 27#include "avcodec.h" 28#include "internal.h" 29#include "libavutil/avassert.h" 30#include "libavutil/opt.h" 31#include <float.h> /* FLT_MIN, FLT_MAX */ 32 33static const char* context_to_name(void* ptr) { 34 AVCodecContext *avc= ptr; 35 36 if(avc && avc->codec && avc->codec->name) 37 return avc->codec->name; 38 else 39 return "NULL"; 40} 41 42static void *codec_child_next(void *obj, void *prev) 43{ 44 AVCodecContext *s = obj; 45 if (!prev && s->codec && s->codec->priv_class && s->priv_data) 46 return s->priv_data; 47 return NULL; 48} 49 50static const AVClass *codec_child_class_next(const AVClass *prev) 51{ 52 AVCodec *c = NULL; 53 54 /* find the codec that corresponds to prev */ 55 while (prev && (c = av_codec_next(c))) 56 if (c->priv_class == prev) 57 break; 58 59 /* find next codec with priv options */ 60 while (c = av_codec_next(c)) 61 if (c->priv_class) 62 return c->priv_class; 63 return NULL; 64} 65 66#define OFFSET(x) offsetof(AVCodecContext,x) 67#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 68//these names are too long to be readable 69#define V AV_OPT_FLAG_VIDEO_PARAM 70#define A AV_OPT_FLAG_AUDIO_PARAM 71#define S AV_OPT_FLAG_SUBTITLE_PARAM 72#define E AV_OPT_FLAG_ENCODING_PARAM 73#define D AV_OPT_FLAG_DECODING_PARAM 74 75#define AV_CODEC_DEFAULT_BITRATE 200*1000 76 77static const AVOption options[]={ 78{"b", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT, {.dbl = AV_CODEC_DEFAULT_BITRATE }, INT_MIN, INT_MAX, V|A|E}, 79{"ab", "this option is deprecated, use b", OFFSET(bit_rate), AV_OPT_TYPE_INT, {.dbl = AV_CODEC_DEFAULT_BITRATE }, INT_MIN, INT_MAX, A|E}, 80{"bt", "set video bitrate tolerance (in bits/s)", OFFSET(bit_rate_tolerance), AV_OPT_TYPE_INT, {.dbl = AV_CODEC_DEFAULT_BITRATE*20 }, 1, INT_MAX, V|E}, 81{"flags", NULL, OFFSET(flags), AV_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, 0, UINT_MAX, V|A|E|D, "flags"}, 82{"mv4", "use four motion vector by macroblock (mpeg4)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_4MV }, INT_MIN, INT_MAX, V|E, "flags"}, 83#if FF_API_MPEGVIDEO_GLOBAL_OPTS 84{"obmc", "use overlapped block motion compensation (h263+)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_OBMC }, INT_MIN, INT_MAX, V|E, "flags"}, 85#endif 86{"qpel", "use 1/4 pel motion compensation", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_QPEL }, INT_MIN, INT_MAX, V|E, "flags"}, 87{"loop", "use loop filter", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_LOOP_FILTER }, INT_MIN, INT_MAX, V|E, "flags"}, 88{"qscale", "use fixed qscale", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_QSCALE }, INT_MIN, INT_MAX, 0, "flags"}, 89{"gmc", "use gmc", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_GMC }, INT_MIN, INT_MAX, V|E, "flags"}, 90{"mv0", "always try a mb with mv=<0,0>", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_MV0 }, INT_MIN, INT_MAX, V|E, "flags"}, 91#if FF_API_MPEGVIDEO_GLOBAL_OPTS 92{"part", "use data partitioning", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_PART }, INT_MIN, INT_MAX, V|E, "flags"}, 93#endif 94{"input_preserved", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_INPUT_PRESERVED }, INT_MIN, INT_MAX, 0, "flags"}, 95{"pass1", "use internal 2pass ratecontrol in first pass mode", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_PASS1 }, INT_MIN, INT_MAX, 0, "flags"}, 96{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_PASS2 }, INT_MIN, INT_MAX, 0, "flags"}, 97#if FF_API_MJPEG_GLOBAL_OPTS 98{"extern_huff", "use external huffman table (for mjpeg)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_EXTERN_HUFF }, INT_MIN, INT_MAX, 0, "flags"}, 99#endif 100{"gray", "only decode/encode grayscale", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_GRAY }, INT_MIN, INT_MAX, V|E|D, "flags"}, 101{"emu_edge", "don't draw edges", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_EMU_EDGE }, INT_MIN, INT_MAX, 0, "flags"}, 102{"psnr", "error[?] variables will be set during encoding", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_PSNR }, INT_MIN, INT_MAX, V|E, "flags"}, 103{"truncated", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_TRUNCATED }, INT_MIN, INT_MAX, 0, "flags"}, 104{"naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_NORMALIZE_AQP }, INT_MIN, INT_MAX, V|E, "flags"}, 105{"ildct", "use interlaced dct", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_INTERLACED_DCT }, INT_MIN, INT_MAX, V|E, "flags"}, 106{"low_delay", "force low delay", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_LOW_DELAY }, INT_MIN, INT_MAX, V|D|E, "flags"}, 107#if FF_API_MPEGVIDEO_GLOBAL_OPTS 108{"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_ALT_SCAN }, INT_MIN, INT_MAX, V|E, "flags"}, 109#endif 110{"global_header", "place global headers in extradata instead of every keyframe", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_GLOBAL_HEADER }, INT_MIN, INT_MAX, V|A|E, "flags"}, 111{"bitexact", "use only bitexact stuff (except (i)dct)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_BITEXACT }, INT_MIN, INT_MAX, A|V|S|D|E, "flags"}, 112{"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_AC_PRED }, INT_MIN, INT_MAX, V|E, "flags"}, 113#if FF_API_MPEGVIDEO_GLOBAL_OPTS 114{"umv", "use unlimited motion vectors", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_H263P_UMV }, INT_MIN, INT_MAX, V|E, "flags"}, 115#endif 116{"cbp", "use rate distortion optimization for cbp", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_CBP_RD }, INT_MIN, INT_MAX, V|E, "flags"}, 117{"qprd", "use rate distortion optimization for qp selection", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_QP_RD }, INT_MIN, INT_MAX, V|E, "flags"}, 118#if FF_API_MPEGVIDEO_GLOBAL_OPTS 119{"aiv", "h263 alternative inter vlc", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_H263P_AIV }, INT_MIN, INT_MAX, V|E, "flags"}, 120{"slice", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_H263P_SLICE_STRUCT }, INT_MIN, INT_MAX, V|E, "flags"}, 121#endif 122{"ilme", "interlaced motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_INTERLACED_ME }, INT_MIN, INT_MAX, V|E, "flags"}, 123#if FF_API_MPEGVIDEO_GLOBAL_OPTS 124{"scan_offset", "will reserve space for svcd scan offset user data", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_SVCD_SCAN_OFFSET }, INT_MIN, INT_MAX, V|E, "flags"}, 125#endif 126{"cgop", "closed gop", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_CLOSED_GOP }, INT_MIN, INT_MAX, V|E, "flags"}, 127{"fast", "allow non spec compliant speedup tricks", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_FAST }, INT_MIN, INT_MAX, V|E, "flags2"}, 128{"sgop", "strictly enforce gop size", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_STRICT_GOP }, INT_MIN, INT_MAX, V|E, "flags2"}, 129{"noout", "skip bitstream encoding", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_NO_OUTPUT }, INT_MIN, INT_MAX, V|E, "flags2"}, 130{"local_header", "place global headers at every keyframe instead of in extradata", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_LOCAL_HEADER }, INT_MIN, INT_MAX, V|E, "flags2"}, 131{"sub_id", NULL, OFFSET(sub_id), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 132{"me_method", "set motion estimation method", OFFSET(me_method), AV_OPT_TYPE_INT, {.dbl = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method"}, 133{"zero", "zero motion estimation (fastest)", 0, AV_OPT_TYPE_CONST, {.dbl = ME_ZERO }, INT_MIN, INT_MAX, V|E, "me_method" }, 134{"full", "full motion estimation (slowest)", 0, AV_OPT_TYPE_CONST, {.dbl = ME_FULL }, INT_MIN, INT_MAX, V|E, "me_method" }, 135{"epzs", "EPZS motion estimation (default)", 0, AV_OPT_TYPE_CONST, {.dbl = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method" }, 136{"esa", "esa motion estimation (alias for full)", 0, AV_OPT_TYPE_CONST, {.dbl = ME_FULL }, INT_MIN, INT_MAX, V|E, "me_method" }, 137{"tesa", "tesa motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_TESA }, INT_MIN, INT_MAX, V|E, "me_method" }, 138{"dia", "dia motion estimation (alias for epzs)", 0, AV_OPT_TYPE_CONST, {.dbl = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method" }, 139{"log", "log motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_LOG }, INT_MIN, INT_MAX, V|E, "me_method" }, 140{"phods", "phods motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_PHODS }, INT_MIN, INT_MAX, V|E, "me_method" }, 141{"x1", "X1 motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_X1 }, INT_MIN, INT_MAX, V|E, "me_method" }, 142{"hex", "hex motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_HEX }, INT_MIN, INT_MAX, V|E, "me_method" }, 143{"umh", "umh motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_UMH }, INT_MIN, INT_MAX, V|E, "me_method" }, 144{"iter", "iter motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_ITER }, INT_MIN, INT_MAX, V|E, "me_method" }, 145{"extradata_size", NULL, OFFSET(extradata_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 146{"time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, INT_MIN, INT_MAX}, 147{"g", "set the group of picture size", OFFSET(gop_size), AV_OPT_TYPE_INT, {.dbl = 12 }, INT_MIN, INT_MAX, V|E}, 148{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|D|E}, 149{"ac", "set number of audio channels", OFFSET(channels), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|D|E}, 150{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|E}, 151{"frame_size", NULL, OFFSET(frame_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|E}, 152{"frame_number", NULL, OFFSET(frame_number), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 153{"delay", NULL, OFFSET(delay), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 154{"qcomp", "video quantizer scale compression (VBR)", OFFSET(qcompress), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -FLT_MAX, FLT_MAX, V|E}, 155{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -1, FLT_MAX, V|E}, 156{"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), AV_OPT_TYPE_INT, {.dbl = 2 }, -1, 69, V|E}, 157{"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), AV_OPT_TYPE_INT, {.dbl = 31 }, -1, 69, V|E}, 158{"qdiff", "max difference between the quantizer scale (VBR)", OFFSET(max_qdiff), AV_OPT_TYPE_INT, {.dbl = 3 }, INT_MIN, INT_MAX, V|E}, 159{"bf", "use 'frames' B frames", OFFSET(max_b_frames), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, -1, FF_MAX_B_FRAMES, V|E}, 160{"b_qfactor", "qp factor between p and b frames", OFFSET(b_quant_factor), AV_OPT_TYPE_FLOAT, {.dbl = 1.25 }, -FLT_MAX, FLT_MAX, V|E}, 161{"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 162{"b_strategy", "strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.dbl = 0 }, INT_MIN, INT_MAX, V|E}, 163#if FF_API_X264_GLOBAL_OPTS 164{"wpredp", "weighted prediction analysis method", OFFSET(weighted_p_pred), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, V|E}, 165#endif 166{"ps", "rtp payload size in bytes", OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 167{"mv_bits", NULL, OFFSET(mv_bits), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 168{"header_bits", NULL, OFFSET(header_bits), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 169{"i_tex_bits", NULL, OFFSET(i_tex_bits), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 170{"p_tex_bits", NULL, OFFSET(p_tex_bits), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 171{"i_count", NULL, OFFSET(i_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 172{"p_count", NULL, OFFSET(p_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 173{"skip_count", NULL, OFFSET(skip_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 174{"misc_bits", NULL, OFFSET(misc_bits), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 175{"frame_bits", NULL, OFFSET(frame_bits), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 176{"codec_tag", NULL, OFFSET(codec_tag), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 177{"bug", "workaround not auto detected encoder bugs", OFFSET(workaround_bugs), AV_OPT_TYPE_FLAGS, {.dbl = FF_BUG_AUTODETECT }, INT_MIN, INT_MAX, V|D, "bug"}, 178{"autodetect", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_AUTODETECT }, INT_MIN, INT_MAX, V|D, "bug"}, 179{"old_msmpeg4", "some old lavc generated msmpeg4v3 files (no autodetection)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_OLD_MSMPEG4 }, INT_MIN, INT_MAX, V|D, "bug"}, 180{"xvid_ilace", "Xvid interlacing bug (autodetected if fourcc==XVIX)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_XVID_ILACE }, INT_MIN, INT_MAX, V|D, "bug"}, 181{"ump4", "(autodetected if fourcc==UMP4)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_UMP4 }, INT_MIN, INT_MAX, V|D, "bug"}, 182{"no_padding", "padding bug (autodetected)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_NO_PADDING }, INT_MIN, INT_MAX, V|D, "bug"}, 183{"amv", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_AMV }, INT_MIN, INT_MAX, V|D, "bug"}, 184{"ac_vlc", "illegal vlc bug (autodetected per fourcc)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_AC_VLC }, INT_MIN, INT_MAX, V|D, "bug"}, 185{"qpel_chroma", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_QPEL_CHROMA }, INT_MIN, INT_MAX, V|D, "bug"}, 186{"std_qpel", "old standard qpel (autodetected per fourcc/version)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_STD_QPEL }, INT_MIN, INT_MAX, V|D, "bug"}, 187{"qpel_chroma2", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_QPEL_CHROMA2 }, INT_MIN, INT_MAX, V|D, "bug"}, 188{"direct_blocksize", "direct-qpel-blocksize bug (autodetected per fourcc/version)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_DIRECT_BLOCKSIZE }, INT_MIN, INT_MAX, V|D, "bug"}, 189{"edge", "edge padding bug (autodetected per fourcc/version)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_EDGE }, INT_MIN, INT_MAX, V|D, "bug"}, 190{"hpel_chroma", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_HPEL_CHROMA }, INT_MIN, INT_MAX, V|D, "bug"}, 191{"dc_clip", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_DC_CLIP }, INT_MIN, INT_MAX, V|D, "bug"}, 192{"ms", "workaround various bugs in microsofts broken decoders", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_MS }, INT_MIN, INT_MAX, V|D, "bug"}, 193{"trunc", "trancated frames", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_TRUNCATED}, INT_MIN, INT_MAX, V|D, "bug"}, 194{"lelim", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)", OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 195{"celim", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)", OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 196{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|V|D|E, "strict"}, 197{"very", "strictly conform to a older more strict version of the spec or reference software", 0, AV_OPT_TYPE_CONST, {.dbl = FF_COMPLIANCE_VERY_STRICT }, INT_MIN, INT_MAX, V|D|E, "strict"}, 198{"strict", "strictly conform to all the things in the spec no matter what consequences", 0, AV_OPT_TYPE_CONST, {.dbl = FF_COMPLIANCE_STRICT }, INT_MIN, INT_MAX, V|D|E, "strict"}, 199{"normal", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_COMPLIANCE_NORMAL }, INT_MIN, INT_MAX, V|D|E, "strict"}, 200{"unofficial", "allow unofficial extensions", 0, AV_OPT_TYPE_CONST, {.dbl = FF_COMPLIANCE_UNOFFICIAL }, INT_MIN, INT_MAX, V|D|E, "strict"}, 201{"experimental", "allow non standardized experimental things", 0, AV_OPT_TYPE_CONST, {.dbl = FF_COMPLIANCE_EXPERIMENTAL }, INT_MIN, INT_MAX, V|D|E, "strict"}, 202{"b_qoffset", "qp offset between P and B frames", OFFSET(b_quant_offset), AV_OPT_TYPE_FLOAT, {.dbl = 1.25 }, -FLT_MAX, FLT_MAX, V|E}, 203#if FF_API_ER 204{"er", "set error detection aggressivity", OFFSET(error_recognition), AV_OPT_TYPE_INT, {.dbl = FF_ER_CAREFUL }, INT_MIN, INT_MAX, A|V|D, "er"}, 205{"careful", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_ER_CAREFUL }, INT_MIN, INT_MAX, V|D, "er"}, 206{"compliant", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_ER_COMPLIANT }, INT_MIN, INT_MAX, V|D, "er"}, 207{"aggressive", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_ER_AGGRESSIVE }, INT_MIN, INT_MAX, V|D, "er"}, 208{"very_aggressive", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_ER_VERY_AGGRESSIVE }, INT_MIN, INT_MAX, V|D, "er"}, 209{"explode", "abort decoding on error recognition", 0, AV_OPT_TYPE_CONST, {.dbl = FF_ER_EXPLODE }, INT_MIN, INT_MAX, V|D, "er"}, 210#endif /* FF_API_ER */ 211{"err_detect", "set error detection flags", OFFSET(err_recognition), AV_OPT_TYPE_FLAGS, {.dbl = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, A|V|D, "err_detect"}, 212{"crccheck", "verify embedded CRCs", 0, AV_OPT_TYPE_CONST, {.dbl = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, V|D, "err_detect"}, 213{"bitstream", "detect bitstream specification deviations", 0, AV_OPT_TYPE_CONST, {.dbl = AV_EF_BITSTREAM }, INT_MIN, INT_MAX, V|D, "err_detect"}, 214{"buffer", "detect improper bitstream length", 0, AV_OPT_TYPE_CONST, {.dbl = AV_EF_BUFFER }, INT_MIN, INT_MAX, V|D, "err_detect"}, 215{"explode", "abort decoding on minor error detection", 0, AV_OPT_TYPE_CONST, {.dbl = AV_EF_EXPLODE }, INT_MIN, INT_MAX, V|D, "err_detect"}, 216{"has_b_frames", NULL, OFFSET(has_b_frames), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 217{"block_align", NULL, OFFSET(block_align), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 218#if FF_API_PARSE_FRAME 219{"parse_only", NULL, OFFSET(parse_only), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 220#endif 221{"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 222{"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, 0, 99, V|E}, 223{"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E}, 224{"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 225{"rc_override_count", NULL, OFFSET(rc_override_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 226{"rc_eq", "set rate control equation", OFFSET(rc_eq), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, V|E}, 227{"maxrate", "set max bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|A|E}, 228{"minrate", "set min bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|A|E}, 229{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|V|E}, 230{"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, V|E}, 231{"i_qfactor", "qp factor between P and I frames", OFFSET(i_quant_factor), AV_OPT_TYPE_FLOAT, {.dbl = -0.8 }, -FLT_MAX, FLT_MAX, V|E}, 232{"i_qoffset", "qp offset between P and I frames", OFFSET(i_quant_offset), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, -FLT_MAX, FLT_MAX, V|E}, 233{"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E}, 234{"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, V|E, "dct"}, 235{"auto", "autoselect a good one (default)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"}, 236{"fastint", "fast integer", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"}, 237{"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"}, 238{"mmx", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, "dct"}, 239{"mlib", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_MLIB }, INT_MIN, INT_MAX, V|E, "dct"}, 240{"altivec", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, "dct"}, 241{"faan", "floating point AAN DCT", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"}, 242{"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E}, 243{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E}, 244{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E}, 245{"p_mask", "inter masking", OFFSET(p_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E}, 246{"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E}, 247{"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, V|E|D, "idct"}, 248{"auto", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, "idct"}, 249{"int", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, "idct"}, 250{"simple", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, "idct"}, 251{"simplemmx", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, "idct"}, 252{"libmpeg2mmx", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_LIBMPEG2MMX }, INT_MIN, INT_MAX, V|E|D, "idct"}, 253{"ps2", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_PS2 }, INT_MIN, INT_MAX, V|E|D, "idct"}, 254{"mlib", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_MLIB }, INT_MIN, INT_MAX, V|E|D, "idct"}, 255{"arm", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, "idct"}, 256{"altivec", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, "idct"}, 257{"sh4", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SH4 }, INT_MIN, INT_MAX, V|E|D, "idct"}, 258{"simplearm", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, "idct"}, 259{"simplearmv5te", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, "idct"}, 260{"simplearmv6", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, "idct"}, 261{"simpleneon", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, "idct"}, 262{"simplealpha", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLEALPHA }, INT_MIN, INT_MAX, V|E|D, "idct"}, 263{"h264", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_H264 }, INT_MIN, INT_MAX, V|E|D, "idct"}, 264{"vp3", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_VP3 }, INT_MIN, INT_MAX, V|E|D, "idct"}, 265{"ipp", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_IPP }, INT_MIN, INT_MAX, V|E|D, "idct"}, 266{"xvidmmx", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_XVIDMMX }, INT_MIN, INT_MAX, V|E|D, "idct"}, 267{"faani", "floating point AAN IDCT", 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"}, 268{"slice_count", NULL, OFFSET(slice_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 269{"ec", "set error concealment strategy", OFFSET(error_concealment), AV_OPT_TYPE_FLAGS, {.dbl = 3 }, INT_MIN, INT_MAX, V|D, "ec"}, 270{"guess_mvs", "iterative motion vector (MV) search (slow)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_EC_GUESS_MVS }, INT_MIN, INT_MAX, V|D, "ec"}, 271{"deblock", "use strong deblock filter for damaged MBs", 0, AV_OPT_TYPE_CONST, {.dbl = FF_EC_DEBLOCK }, INT_MIN, INT_MAX, V|D, "ec"}, 272{"bits_per_coded_sample", NULL, OFFSET(bits_per_coded_sample), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 273{"pred", "prediction method", OFFSET(prediction_method), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "pred"}, 274{"left", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PRED_LEFT }, INT_MIN, INT_MAX, V|E, "pred"}, 275{"plane", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PRED_PLANE }, INT_MIN, INT_MAX, V|E, "pred"}, 276{"median", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PRED_MEDIAN }, INT_MIN, INT_MAX, V|E, "pred"}, 277{"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10, V|E}, 278{"debug", "print specific debug info", OFFSET(debug), AV_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, 0, INT_MAX, V|A|S|E|D, "debug"}, 279{"pict", "picture info", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_PICT_INFO }, INT_MIN, INT_MAX, V|D, "debug"}, 280{"rc", "rate control", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_RC }, INT_MIN, INT_MAX, V|E, "debug"}, 281{"bitstream", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_BITSTREAM }, INT_MIN, INT_MAX, V|D, "debug"}, 282{"mb_type", "macroblock (MB) type", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_MB_TYPE }, INT_MIN, INT_MAX, V|D, "debug"}, 283{"qp", "per-block quantization parameter (QP)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_QP }, INT_MIN, INT_MAX, V|D, "debug"}, 284{"mv", "motion vector", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_MV }, INT_MIN, INT_MAX, V|D, "debug"}, 285{"dct_coeff", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_DCT_COEFF }, INT_MIN, INT_MAX, V|D, "debug"}, 286{"skip", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_SKIP }, INT_MIN, INT_MAX, V|D, "debug"}, 287{"startcode", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_STARTCODE }, INT_MIN, INT_MAX, V|D, "debug"}, 288{"pts", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_PTS }, INT_MIN, INT_MAX, V|D, "debug"}, 289{"er", "error recognition", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_ER }, INT_MIN, INT_MAX, V|D, "debug"}, 290{"mmco", "memory management control operations (H.264)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_MMCO }, INT_MIN, INT_MAX, V|D, "debug"}, 291{"bugs", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_BUGS }, INT_MIN, INT_MAX, V|D, "debug"}, 292{"vis_qp", "visualize quantization parameter (QP), lower QP are tinted greener", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_VIS_QP }, INT_MIN, INT_MAX, V|D, "debug"}, 293{"vis_mb_type", "visualize block types", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_VIS_MB_TYPE }, INT_MIN, INT_MAX, V|D, "debug"}, 294{"buffers", "picture buffer allocations", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_BUFFERS }, INT_MIN, INT_MAX, V|D, "debug"}, 295{"thread_ops", "threading operations", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_THREADS }, INT_MIN, INT_MAX, V|D, "debug"}, 296{"vismv", "visualize motion vectors (MVs)", OFFSET(debug_mv), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, V|D, "debug_mv"}, 297{"pf", "forward predicted MVs of P-frames", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_VIS_MV_P_FOR }, INT_MIN, INT_MAX, V|D, "debug_mv"}, 298{"bf", "forward predicted MVs of B-frames", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_VIS_MV_B_FOR }, INT_MIN, INT_MAX, V|D, "debug_mv"}, 299{"bb", "backward predicted MVs of B-frames", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_VIS_MV_B_BACK }, INT_MIN, INT_MAX, V|D, "debug_mv"}, 300{"cmp", "full pel me compare function", OFFSET(me_cmp), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 301{"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 302{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 303{"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), AV_OPT_TYPE_INT, {.dbl = FF_CMP_VSAD }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 304{"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 305{"last_pred", "amount of motion predictors from the previous frame", OFFSET(last_predictor_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 306{"preme", "pre motion estimation", OFFSET(pre_me), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 307{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 308{"sad", "sum of absolute differences, fast (default)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_SAD }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 309{"sse", "sum of squared errors", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_SSE }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 310{"satd", "sum of absolute Hadamard transformed differences", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_SATD }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 311{"dct", "sum of absolute DCT transformed differences", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_DCT }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 312{"psnr", "sum of squared quantization errors (avoid, low quality)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_PSNR }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 313{"bit", "number of bits needed for the block", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_BIT }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 314{"rd", "rate distortion optimal, slow", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_RD }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 315{"zero", "0", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_ZERO }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 316{"vsad", "sum of absolute vertical differences", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_VSAD }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 317{"vsse", "sum of squared vertical differences", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_VSSE }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 318{"nsse", "noise preserving sum of squared differences", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_NSSE }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 319#if CONFIG_SNOW_ENCODER 320{"w53", "5/3 wavelet, only used in snow", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_W53 }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 321{"w97", "9/7 wavelet, only used in snow", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_W97 }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 322#endif 323{"dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 324{"chroma", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_CHROMA }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 325{"pre_dia_size", "diamond type & size for motion estimation pre-pass", OFFSET(pre_dia_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 326{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), AV_OPT_TYPE_INT, {.dbl = 8 }, INT_MIN, INT_MAX, V|E}, 327{"dtg_active_format", NULL, OFFSET(dtg_active_format), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 328{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 329{"ibias", "intra quant bias", OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.dbl = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, V|E}, 330{"pbias", "inter quant bias", OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.dbl = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, V|E}, 331{"color_table_id", NULL, OFFSET(color_table_id), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 332{"global_quality", NULL, OFFSET(global_quality), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|A|E}, 333{"coder", NULL, OFFSET(coder_type), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "coder"}, 334{"vlc", "variable length coder / huffman coder", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CODER_TYPE_VLC }, INT_MIN, INT_MAX, V|E, "coder"}, 335{"ac", "arithmetic coder", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CODER_TYPE_AC }, INT_MIN, INT_MAX, V|E, "coder"}, 336{"raw", "raw (no encoding)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CODER_TYPE_RAW }, INT_MIN, INT_MAX, V|E, "coder"}, 337{"rle", "run-length coder", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CODER_TYPE_RLE }, INT_MIN, INT_MAX, V|E, "coder"}, 338{"deflate", "deflate-based coder", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CODER_TYPE_DEFLATE }, INT_MIN, INT_MAX, V|E, "coder"}, 339{"context", "context model", OFFSET(context_model), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 340{"slice_flags", NULL, OFFSET(slice_flags), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 341{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 342{"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "mbd"}, 343{"simple", "use mbcmp (default)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_MB_DECISION_SIMPLE }, INT_MIN, INT_MAX, V|E, "mbd"}, 344{"bits", "use fewest bits", 0, AV_OPT_TYPE_CONST, {.dbl = FF_MB_DECISION_BITS }, INT_MIN, INT_MAX, V|E, "mbd"}, 345{"rd", "use best rate distortion", 0, AV_OPT_TYPE_CONST, {.dbl = FF_MB_DECISION_RD }, INT_MIN, INT_MAX, V|E, "mbd"}, 346{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 347{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 348{"lmin", "min lagrange factor (VBR)", OFFSET(lmin), AV_OPT_TYPE_INT, {.dbl = 2*FF_QP2LAMBDA }, 0, INT_MAX, V|E}, 349{"lmax", "max lagrange factor (VBR)", OFFSET(lmax), AV_OPT_TYPE_INT, {.dbl = 31*FF_QP2LAMBDA }, 0, INT_MAX, V|E}, 350{"nr", "noise reduction", OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 351{"rc_init_occupancy", "number of bits which should be loaded into the rc buffer before decoding starts", OFFSET(rc_initial_buffer_occupancy), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 352{"inter_threshold", NULL, OFFSET(inter_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 353#if FF_API_X264_GLOBAL_OPTS 354#define X264_DEFAULTS CODEC_FLAG2_FASTPSKIP|CODEC_FLAG2_PSY|CODEC_FLAG2_MBTREE 355#else 356#define X264_DEFAULTS 0 357#endif 358#if FF_API_LAME_GLOBAL_OPTS 359#define LAME_DEFAULTS CODEC_FLAG2_BIT_RESERVOIR 360#else 361#define LAME_DEFAULTS 0 362#endif 363{"flags2", NULL, OFFSET(flags2), AV_OPT_TYPE_FLAGS, {.dbl = X264_DEFAULTS|LAME_DEFAULTS }, 0, UINT_MAX, V|A|E|D, "flags2"}, 364{"error", NULL, OFFSET(error_rate), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 365#if FF_API_ANTIALIAS_ALGO 366{"antialias", "MP3 antialias algorithm", OFFSET(antialias_algo), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|D, "aa"}, 367{"auto", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_AA_AUTO }, INT_MIN, INT_MAX, V|D, "aa"}, 368{"fastint", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_AA_FASTINT }, INT_MIN, INT_MAX, V|D, "aa"}, 369{"int", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_AA_INT }, INT_MIN, INT_MAX, V|D, "aa"}, 370{"float", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_AA_FLOAT }, INT_MIN, INT_MAX, V|D, "aa"}, 371#endif 372{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 373{"threads", NULL, OFFSET(thread_count), AV_OPT_TYPE_INT, {.dbl = 1 }, 0, INT_MAX, V|E|D, "threads"}, 374{"auto", "detect a good number of threads", 0, AV_OPT_TYPE_CONST, {.dbl = 0 }, INT_MIN, INT_MAX, V|E|D, "threads"}, 375{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 376{"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 377{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), AV_OPT_TYPE_INT, {.dbl = 0 }, INT_MIN, INT_MAX, V|E}, 378{"nssew", "nsse weight", OFFSET(nsse_weight), AV_OPT_TYPE_INT, {.dbl = 8 }, INT_MIN, INT_MAX, V|E}, 379{"skip_top", "number of macroblock rows at the top which are skipped", OFFSET(skip_top), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|D}, 380{"skip_bottom", "number of macroblock rows at the bottom which are skipped", OFFSET(skip_bottom), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|D}, 381{"profile", NULL, OFFSET(profile), AV_OPT_TYPE_INT, {.dbl = FF_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "profile"}, 382{"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "profile"}, 383{"aac_main", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_AAC_MAIN }, INT_MIN, INT_MAX, A|E, "profile"}, 384{"aac_low", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_AAC_LOW }, INT_MIN, INT_MAX, A|E, "profile"}, 385{"aac_ssr", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_AAC_SSR }, INT_MIN, INT_MAX, A|E, "profile"}, 386{"aac_ltp", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_AAC_LTP }, INT_MIN, INT_MAX, A|E, "profile"}, 387{"dts", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_DTS }, INT_MIN, INT_MAX, A|E, "profile"}, 388{"dts_es", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_DTS_ES }, INT_MIN, INT_MAX, A|E, "profile"}, 389{"dts_96_24", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_DTS_96_24 }, INT_MIN, INT_MAX, A|E, "profile"}, 390{"dts_hd_hra", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_DTS_HD_HRA }, INT_MIN, INT_MAX, A|E, "profile"}, 391{"dts_hd_ma", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_DTS_HD_MA }, INT_MIN, INT_MAX, A|E, "profile"}, 392{"level", NULL, OFFSET(level), AV_OPT_TYPE_INT, {.dbl = FF_LEVEL_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "level"}, 393{"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_LEVEL_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "level"}, 394{"lowres", "decode at 1= 1/2, 2=1/4, 3=1/8 resolutions", OFFSET(lowres), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, V|A|D}, 395{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 396{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 397{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 398{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.dbl = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, V|E, "cmp_func"}, 399{"border_mask", "increases the quantizer for macroblocks close to borders", OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E}, 400{"mblmin", "min macroblock lagrange factor (VBR)", OFFSET(mb_lmin), AV_OPT_TYPE_INT, {.dbl = FF_QP2LAMBDA * 2 }, 1, FF_LAMBDA_MAX, V|E}, 401{"mblmax", "max macroblock lagrange factor (VBR)", OFFSET(mb_lmax), AV_OPT_TYPE_INT, {.dbl = FF_QP2LAMBDA * 31 }, 1, FF_LAMBDA_MAX, V|E}, 402{"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {.dbl = 256 }, INT_MIN, INT_MAX, V|E}, 403{"skip_loop_filter", NULL, OFFSET(skip_loop_filter), AV_OPT_TYPE_INT, {.dbl = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"}, 404{"skip_idct" , NULL, OFFSET(skip_idct) , AV_OPT_TYPE_INT, {.dbl = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"}, 405{"skip_frame" , NULL, OFFSET(skip_frame) , AV_OPT_TYPE_INT, {.dbl = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"}, 406{"none" , NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AVDISCARD_NONE }, INT_MIN, INT_MAX, V|D, "avdiscard"}, 407{"default" , NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"}, 408{"noref" , NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AVDISCARD_NONREF }, INT_MIN, INT_MAX, V|D, "avdiscard"}, 409{"bidir" , NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AVDISCARD_BIDIR }, INT_MIN, INT_MAX, V|D, "avdiscard"}, 410{"nokey" , NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AVDISCARD_NONKEY }, INT_MIN, INT_MAX, V|D, "avdiscard"}, 411{"all" , NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AVDISCARD_ALL }, INT_MIN, INT_MAX, V|D, "avdiscard"}, 412{"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), AV_OPT_TYPE_INT, {.dbl = 1 }, 0, 4, V|E}, 413{"brd_scale", "downscales frames for dynamic B-frame decision", OFFSET(brd_scale), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, 10, V|E}, 414#if FF_API_X264_GLOBAL_OPTS 415{"crf", "enables constant quality mode, and selects the quality (x264)", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, 0, 51, V|E}, 416{"cqp", "constant quantization parameter rate control method", OFFSET(cqp), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, V|E}, 417#endif 418{"keyint_min", "minimum interval between IDR-frames (x264)", OFFSET(keyint_min), AV_OPT_TYPE_INT, {.dbl = 25 }, INT_MIN, INT_MAX, V|E}, 419{"refs", "reference frames to consider for motion compensation (Snow)", OFFSET(refs), AV_OPT_TYPE_INT, {.dbl = 1 }, INT_MIN, INT_MAX, V|E}, 420{"chromaoffset", "chroma qp offset from luma", OFFSET(chromaoffset), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 421#if FF_API_X264_GLOBAL_OPTS 422{"bframebias", "influences how often B-frames are used", OFFSET(bframebias), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E}, 423#endif 424{"trellis", "rate-distortion optimal quantization", OFFSET(trellis), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|A|E}, 425#if FF_API_X264_GLOBAL_OPTS 426{"directpred", "direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto)", OFFSET(directpred), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, V|E}, 427{"bpyramid", "allows B-frames to be used as references for predicting", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_BPYRAMID }, INT_MIN, INT_MAX, V|E, "flags2"}, 428{"wpred", "weighted biprediction for b-frames (H.264)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_WPRED }, INT_MIN, INT_MAX, V|E, "flags2"}, 429{"mixed_refs", "one reference per partition, as opposed to one reference per macroblock", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_MIXED_REFS }, INT_MIN, INT_MAX, V|E, "flags2"}, 430{"dct8x8", "high profile 8x8 transform (H.264)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_8X8DCT }, INT_MIN, INT_MAX, V|E, "flags2"}, 431{"fastpskip", "fast pskip (H.264)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_FASTPSKIP }, INT_MIN, INT_MAX, V|E, "flags2"}, 432{"aud", "access unit delimiters (H.264)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_AUD }, INT_MIN, INT_MAX, V|E, "flags2"}, 433#endif 434{"skiprd", "RD optimal MB level residual skipping", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_SKIP_RD }, INT_MIN, INT_MAX, V|E, "flags2"}, 435#if FF_API_X264_GLOBAL_OPTS 436{"complexityblur", "reduce fluctuations in qp (before curve compression)", OFFSET(complexityblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, V|E}, 437{"deblockalpha", "in-loop deblocking filter alphac0 parameter", OFFSET(deblockalpha), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, -6, 6, V|E}, 438{"deblockbeta", "in-loop deblocking filter beta parameter", OFFSET(deblockbeta), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, -6, 6, V|E}, 439{"partitions", "macroblock subpartition sizes to consider", OFFSET(partitions), AV_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "partitions"}, 440{"parti4x4", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = X264_PART_I4X4 }, INT_MIN, INT_MAX, V|E, "partitions"}, 441{"parti8x8", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = X264_PART_I8X8 }, INT_MIN, INT_MAX, V|E, "partitions"}, 442{"partp4x4", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = X264_PART_P4X4 }, INT_MIN, INT_MAX, V|E, "partitions"}, 443{"partp8x8", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = X264_PART_P8X8 }, INT_MIN, INT_MAX, V|E, "partitions"}, 444{"partb8x8", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = X264_PART_B8X8 }, INT_MIN, INT_MAX, V|E, "partitions"}, 445#endif 446{"sc_factor", "multiplied by qscale for each frame and added to scene_change_score", OFFSET(scenechange_factor), AV_OPT_TYPE_INT, {.dbl = 6 }, 0, INT_MAX, V|E}, 447{"mv0_threshold", NULL, OFFSET(mv0_threshold), AV_OPT_TYPE_INT, {.dbl = 256 }, 0, INT_MAX, V|E}, 448#if FF_API_MPEGVIDEO_GLOBAL_OPTS 449{"ivlc", "intra vlc table", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_INTRA_VLC }, INT_MIN, INT_MAX, V|E, "flags2"}, 450#endif 451{"b_sensitivity", "adjusts sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), AV_OPT_TYPE_INT, {.dbl = 40 }, 1, INT_MAX, V|E}, 452{"compression_level", NULL, OFFSET(compression_level), AV_OPT_TYPE_INT, {.dbl = FF_COMPRESSION_DEFAULT }, INT_MIN, INT_MAX, V|A|E}, 453{"min_prediction_order", NULL, OFFSET(min_prediction_order), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E}, 454{"max_prediction_order", NULL, OFFSET(max_prediction_order), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E}, 455#if FF_API_FLAC_GLOBAL_OPTS 456{"lpc_coeff_precision", "deprecated, use flac-specific options", OFFSET(lpc_coeff_precision), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, A|E}, 457{"prediction_order_method", "deprecated, use flac-specific options", OFFSET(prediction_order_method), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E}, 458{"min_partition_order", "deprecated, use flac-specific options", OFFSET(min_partition_order), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E}, 459{"max_partition_order", "deprecated, use flac-specific options", OFFSET(max_partition_order), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E}, 460#endif 461{"timecode_frame_start", "GOP timecode frame start number, in non drop frame format", OFFSET(timecode_frame_start), AV_OPT_TYPE_INT64, {.dbl = 0 }, 0, INT64_MAX, V|E}, 462#if FF_API_MPEGVIDEO_GLOBAL_OPTS 463{"drop_frame_timecode", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_DROP_FRAME_TIMECODE }, INT_MIN, INT_MAX, V|E, "flags2"}, 464{"non_linear_q", "use non linear quantizer", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_NON_LINEAR_QUANT }, INT_MIN, INT_MAX, V|E, "flags2"}, 465#endif 466#if FF_API_REQUEST_CHANNELS 467{"request_channels", "set desired number of audio channels", OFFSET(request_channels), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, A|D}, 468#endif 469#if FF_API_DRC_SCALE 470{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, 0.0, 1.0, A|D}, 471#endif 472#if FF_API_LAME_GLOBAL_OPTS 473{"reservoir", "use bit reservoir", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_BIT_RESERVOIR }, INT_MIN, INT_MAX, A|E, "flags2"}, 474#endif 475#if FF_API_X264_GLOBAL_OPTS 476{"mbtree", "use macroblock tree ratecontrol (x264 only)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_MBTREE }, INT_MIN, INT_MAX, V|E, "flags2"}, 477#endif 478{"bits_per_raw_sample", NULL, OFFSET(bits_per_raw_sample), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX}, 479{"channel_layout", NULL, OFFSET(channel_layout), AV_OPT_TYPE_INT64, {.dbl = DEFAULT }, 0, INT64_MAX, A|E|D, "channel_layout"}, 480{"request_channel_layout", NULL, OFFSET(request_channel_layout), AV_OPT_TYPE_INT64, {.dbl = DEFAULT }, 0, INT64_MAX, A|D, "request_channel_layout"}, 481{"rc_max_vbv_use", NULL, OFFSET(rc_max_available_vbv_use), AV_OPT_TYPE_FLOAT, {.dbl = 1.0/3 }, 0.0, FLT_MAX, V|E}, 482{"rc_min_vbv_use", NULL, OFFSET(rc_min_vbv_overflow_use), AV_OPT_TYPE_FLOAT, {.dbl = 3 }, 0.0, FLT_MAX, V|E}, 483{"ticks_per_frame", NULL, OFFSET(ticks_per_frame), AV_OPT_TYPE_INT, {.dbl = 1 }, 1, INT_MAX, A|V|E|D}, 484{"color_primaries", NULL, OFFSET(color_primaries), AV_OPT_TYPE_INT, {.dbl = AVCOL_PRI_UNSPECIFIED }, 1, AVCOL_PRI_NB-1, V|E|D}, 485{"color_trc", NULL, OFFSET(color_trc), AV_OPT_TYPE_INT, {.dbl = AVCOL_TRC_UNSPECIFIED }, 1, AVCOL_TRC_NB-1, V|E|D}, 486{"colorspace", NULL, OFFSET(colorspace), AV_OPT_TYPE_INT, {.dbl = AVCOL_SPC_UNSPECIFIED }, 1, AVCOL_SPC_NB-1, V|E|D}, 487{"color_range", NULL, OFFSET(color_range), AV_OPT_TYPE_INT, {.dbl = AVCOL_RANGE_UNSPECIFIED }, 0, AVCOL_RANGE_NB-1, V|E|D}, 488{"chroma_sample_location", NULL, OFFSET(chroma_sample_location), AV_OPT_TYPE_INT, {.dbl = AVCHROMA_LOC_UNSPECIFIED }, 0, AVCHROMA_LOC_NB-1, V|E|D}, 489#if FF_API_X264_GLOBAL_OPTS 490{"psy", "use psycho visual optimization", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_PSY }, INT_MIN, INT_MAX, V|E, "flags2"}, 491{"psy_rd", "specify psycho visual strength", OFFSET(psy_rd), AV_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1, FLT_MAX, V|E}, 492{"psy_trellis", "specify psycho visual trellis", OFFSET(psy_trellis), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, V|E}, 493{"aq_mode", "specify aq method", OFFSET(aq_mode), AV_OPT_TYPE_INT, {.dbl = -1 }, -1, INT_MAX, V|E}, 494{"aq_strength", "specify aq strength", OFFSET(aq_strength), AV_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1, FLT_MAX, V|E}, 495{"rc_lookahead", "specify number of frames to look ahead for frametype", OFFSET(rc_lookahead), AV_OPT_TYPE_INT, {.dbl = -1 }, -1, INT_MAX, V|E}, 496{"ssim", "ssim will be calculated during encoding", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_SSIM }, INT_MIN, INT_MAX, V|E, "flags2"}, 497{"intra_refresh", "use periodic insertion of intra blocks instead of keyframes", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_INTRA_REFRESH }, INT_MIN, INT_MAX, V|E, "flags2"}, 498{"crf_max", "in crf mode, prevents vbv from lowering quality beyond this point", OFFSET(crf_max), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, 0, 51, V|E}, 499#endif 500{"log_level_offset", "set the log level offset", OFFSET(log_level_offset), AV_OPT_TYPE_INT, {.dbl = 0 }, INT_MIN, INT_MAX }, 501#if FF_API_FLAC_GLOBAL_OPTS 502{"lpc_type", "deprecated, use flac-specific options", OFFSET(lpc_type), AV_OPT_TYPE_INT, {.dbl = AV_LPC_TYPE_DEFAULT }, AV_LPC_TYPE_DEFAULT, AV_LPC_TYPE_NB-1, A|E}, 503{"none", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AV_LPC_TYPE_NONE }, INT_MIN, INT_MAX, A|E, "lpc_type"}, 504{"fixed", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AV_LPC_TYPE_FIXED }, INT_MIN, INT_MAX, A|E, "lpc_type"}, 505{"levinson", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AV_LPC_TYPE_LEVINSON }, INT_MIN, INT_MAX, A|E, "lpc_type"}, 506{"cholesky", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AV_LPC_TYPE_CHOLESKY }, INT_MIN, INT_MAX, A|E, "lpc_type"}, 507{"lpc_passes", "deprecated, use flac-specific options", OFFSET(lpc_passes), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E}, 508#endif 509{"slices", "number of slices, used in parallelized encoding", OFFSET(slices), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, V|E}, 510{"thread_type", "select multithreading type", OFFSET(thread_type), AV_OPT_TYPE_FLAGS, {.dbl = FF_THREAD_SLICE|FF_THREAD_FRAME }, 0, INT_MAX, V|E|D, "thread_type"}, 511{"slice", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_THREAD_SLICE }, INT_MIN, INT_MAX, V|E|D, "thread_type"}, 512{"frame", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_THREAD_FRAME }, INT_MIN, INT_MAX, V|E|D, "thread_type"}, 513{"audio_service_type", "audio service type", OFFSET(audio_service_type), AV_OPT_TYPE_INT, {.dbl = AV_AUDIO_SERVICE_TYPE_MAIN }, 0, AV_AUDIO_SERVICE_TYPE_NB-1, A|E, "audio_service_type"}, 514{"ma", "Main Audio Service", 0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_MAIN }, INT_MIN, INT_MAX, A|E, "audio_service_type"}, 515{"ef", "Effects", 0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_EFFECTS }, INT_MIN, INT_MAX, A|E, "audio_service_type"}, 516{"vi", "Visually Impaired", 0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED }, INT_MIN, INT_MAX, A|E, "audio_service_type"}, 517{"hi", "Hearing Impaired", 0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED }, INT_MIN, INT_MAX, A|E, "audio_service_type"}, 518{"di", "Dialogue", 0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_DIALOGUE }, INT_MIN, INT_MAX, A|E, "audio_service_type"}, 519{"co", "Commentary", 0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_COMMENTARY }, INT_MIN, INT_MAX, A|E, "audio_service_type"}, 520{"em", "Emergency", 0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_EMERGENCY }, INT_MIN, INT_MAX, A|E, "audio_service_type"}, 521{"vo", "Voice Over", 0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_VOICE_OVER }, INT_MIN, INT_MAX, A|E, "audio_service_type"}, 522{"ka", "Karaoke", 0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_KARAOKE }, INT_MIN, INT_MAX, A|E, "audio_service_type"}, 523{"request_sample_fmt", NULL, OFFSET(request_sample_fmt), AV_OPT_TYPE_INT, {.dbl = AV_SAMPLE_FMT_NONE }, AV_SAMPLE_FMT_NONE, AV_SAMPLE_FMT_NB-1, A|D, "request_sample_fmt"}, 524{"u8" , "8-bit unsigned integer", 0, AV_OPT_TYPE_CONST, {.dbl = AV_SAMPLE_FMT_U8 }, INT_MIN, INT_MAX, A|D, "request_sample_fmt"}, 525{"s16", "16-bit signed integer", 0, AV_OPT_TYPE_CONST, {.dbl = AV_SAMPLE_FMT_S16 }, INT_MIN, INT_MAX, A|D, "request_sample_fmt"}, 526{"s32", "32-bit signed integer", 0, AV_OPT_TYPE_CONST, {.dbl = AV_SAMPLE_FMT_S32 }, INT_MIN, INT_MAX, A|D, "request_sample_fmt"}, 527{"flt", "32-bit float", 0, AV_OPT_TYPE_CONST, {.dbl = AV_SAMPLE_FMT_FLT }, INT_MIN, INT_MAX, A|D, "request_sample_fmt"}, 528{"dbl", "64-bit double", 0, AV_OPT_TYPE_CONST, {.dbl = AV_SAMPLE_FMT_DBL }, INT_MIN, INT_MAX, A|D, "request_sample_fmt"}, 529{NULL}, 530}; 531 532#undef A 533#undef V 534#undef S 535#undef E 536#undef D 537#undef DEFAULT 538 539static const AVClass av_codec_context_class = { 540 .class_name = "AVCodecContext", 541 .item_name = context_to_name, 542 .option = options, 543 .version = LIBAVUTIL_VERSION_INT, 544 .log_level_offset_offset = OFFSET(log_level_offset), 545 .child_next = codec_child_next, 546 .child_class_next = codec_child_class_next, 547}; 548 549#if FF_API_ALLOC_CONTEXT 550void avcodec_get_context_defaults2(AVCodecContext *s, enum AVMediaType codec_type){ 551 avcodec_get_context_defaults3(s, NULL); 552 s->codec_type = codec_type; 553} 554#endif 555 556int avcodec_get_context_defaults3(AVCodecContext *s, AVCodec *codec){ 557 memset(s, 0, sizeof(AVCodecContext)); 558 559 s->av_class = &av_codec_context_class; 560 561 s->codec_type = codec ? codec->type : AVMEDIA_TYPE_UNKNOWN; 562 s->codec = codec; 563 av_opt_set_defaults(s); 564 565 s->time_base = (AVRational){0,1}; 566 s->get_buffer = avcodec_default_get_buffer; 567 s->release_buffer = avcodec_default_release_buffer; 568 s->get_format = avcodec_default_get_format; 569 s->execute = avcodec_default_execute; 570 s->execute2 = avcodec_default_execute2; 571 s->sample_aspect_ratio = (AVRational){0,1}; 572 s->pix_fmt = PIX_FMT_NONE; 573 s->sample_fmt = AV_SAMPLE_FMT_NONE; 574 575 s->reget_buffer = avcodec_default_reget_buffer; 576 s->reordered_opaque = AV_NOPTS_VALUE; 577 if(codec && codec->priv_data_size){ 578 if(!s->priv_data){ 579 s->priv_data= av_mallocz(codec->priv_data_size); 580 if (!s->priv_data) { 581 return AVERROR(ENOMEM); 582 } 583 } 584 if(codec->priv_class){ 585 *(const AVClass**)s->priv_data = codec->priv_class; 586 av_opt_set_defaults(s->priv_data); 587 } 588 } 589 if (codec && codec->defaults) { 590 int ret; 591 const AVCodecDefault *d = codec->defaults; 592 while (d->key) { 593 ret = av_opt_set(s, d->key, d->value, 0); 594 av_assert0(ret >= 0); 595 d++; 596 } 597 } 598 return 0; 599} 600 601AVCodecContext *avcodec_alloc_context3(AVCodec *codec){ 602 AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext)); 603 604 if(avctx==NULL) return NULL; 605 606 if(avcodec_get_context_defaults3(avctx, codec) < 0){ 607 av_free(avctx); 608 return NULL; 609 } 610 611 return avctx; 612} 613 614#if FF_API_ALLOC_CONTEXT 615AVCodecContext *avcodec_alloc_context2(enum AVMediaType codec_type){ 616 AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext)); 617 618 if(avctx==NULL) return NULL; 619 620 avcodec_get_context_defaults2(avctx, codec_type); 621 622 return avctx; 623} 624 625void avcodec_get_context_defaults(AVCodecContext *s){ 626 avcodec_get_context_defaults2(s, AVMEDIA_TYPE_UNKNOWN); 627} 628 629AVCodecContext *avcodec_alloc_context(void){ 630 return avcodec_alloc_context2(AVMEDIA_TYPE_UNKNOWN); 631} 632#endif 633 634int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src) 635{ 636 if (avcodec_is_open(dest)) { // check that the dest context is uninitialized 637 av_log(dest, AV_LOG_ERROR, 638 "Tried to copy AVCodecContext %p into already-initialized %p\n", 639 src, dest); 640 return AVERROR(EINVAL); 641 } 642 memcpy(dest, src, sizeof(*dest)); 643 644 /* set values specific to opened codecs back to their default state */ 645 dest->priv_data = NULL; 646 dest->codec = NULL; 647 dest->slice_offset = NULL; 648 dest->hwaccel = NULL; 649 dest->thread_opaque = NULL; 650 dest->internal = NULL; 651 652 /* reallocate values that should be allocated separately */ 653 dest->rc_eq = NULL; 654 dest->extradata = NULL; 655 dest->intra_matrix = NULL; 656 dest->inter_matrix = NULL; 657 dest->rc_override = NULL; 658 if (src->rc_eq) { 659 dest->rc_eq = av_strdup(src->rc_eq); 660 if (!dest->rc_eq) 661 return AVERROR(ENOMEM); 662 } 663 664#define alloc_and_copy_or_fail(obj, size, pad) \ 665 if (src->obj && size > 0) { \ 666 dest->obj = av_malloc(size + pad); \ 667 if (!dest->obj) \ 668 goto fail; \ 669 memcpy(dest->obj, src->obj, size); \ 670 if (pad) \ 671 memset(((uint8_t *) dest->obj) + size, 0, pad); \ 672 } 673 alloc_and_copy_or_fail(extradata, src->extradata_size, 674 FF_INPUT_BUFFER_PADDING_SIZE); 675 alloc_and_copy_or_fail(intra_matrix, 64 * sizeof(int16_t), 0); 676 alloc_and_copy_or_fail(inter_matrix, 64 * sizeof(int16_t), 0); 677 alloc_and_copy_or_fail(rc_override, src->rc_override_count * sizeof(*src->rc_override), 0); 678#undef alloc_and_copy_or_fail 679 680 return 0; 681 682fail: 683 av_freep(&dest->rc_override); 684 av_freep(&dest->intra_matrix); 685 av_freep(&dest->inter_matrix); 686 av_freep(&dest->extradata); 687 av_freep(&dest->rc_eq); 688 return AVERROR(ENOMEM); 689} 690 691const AVClass *avcodec_get_class(void) 692{ 693 return &av_codec_context_class; 694} 695