/*
 * Copyright (c) 2001 Fabrice Bellard
 * 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
 */

#ifndef AVCODEC_OPTIONS_TABLE_H
#define AVCODEC_OPTIONS_TABLE_H

#include <float.h>
#include <limits.h>
#include <stdint.h>

#include "libavutil/opt.h"
#include "avcodec.h"
#include "version.h"

#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 avcodec_options[] = {
#ifdef IDE_COMPILE
    {"b", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT, {AV_CODEC_DEFAULT_BITRATE}, 0, INT_MAX, A|V|E},
    {"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT, {128*1000}, 0, INT_MAX, A|E},
    {"bt", "Set video bitrate tolerance (in bits/s). In 1-pass mode, bitrate tolerance specifies how far ratecontrol is willing to deviate from the target average bitrate value. This is not related to minimum/maximum bitrate. Lowering tolerance too much has an adverse effect on quality.", OFFSET(bit_rate_tolerance), AV_OPT_TYPE_INT, {AV_CODEC_DEFAULT_BITRATE*20}, 1, INT_MAX, V|E},
    {"flags", NULL, OFFSET(flags), AV_OPT_TYPE_FLAGS, {DEFAULT}, 0, UINT_MAX, V|A|S|E|D, "flags"},
    {"unaligned", "allow decoders to produce unaligned output", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_UNALIGNED}, INT_MIN, INT_MAX, V | D, "flags" },
    {"mv4", "use four motion vectors per macroblock (MPEG-4)", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_4MV}, INT_MIN, INT_MAX, V|E, "flags"},
    {"qpel", "use 1/4-pel motion compensation", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_QPEL}, INT_MIN, INT_MAX, V|E, "flags"},
    {"loop", "use loop filter", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_LOOP_FILTER}, INT_MIN, INT_MAX, V|E, "flags"},
    {"qscale", "use fixed qscale", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_QSCALE}, INT_MIN, INT_MAX, 0, "flags"},
#if FF_API_GMC
    {"gmc", "use gmc", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_GMC}, INT_MIN, INT_MAX, V|E, "flags"},
#endif
#if FF_API_MV0
    {"mv0", "always try a mb with mv=<0,0>", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_MV0}, INT_MIN, INT_MAX, V|E, "flags"},
#endif
#if FF_API_INPUT_PRESERVED
    {"input_preserved", NULL, 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_INPUT_PRESERVED}, INT_MIN, INT_MAX, 0, "flags"},
#endif
    {"pass1", "use internal 2-pass ratecontrol in first  pass mode", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_PASS1}, INT_MIN, INT_MAX, 0, "flags"},
    {"pass2", "use internal 2-pass ratecontrol in second pass mode", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_PASS2}, INT_MIN, INT_MAX, 0, "flags"},
    {"gray", "only decode/encode grayscale", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_GRAY}, INT_MIN, INT_MAX, V|E|D, "flags"},
#if FF_API_EMU_EDGE
    {"emu_edge", "do not draw edges", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_EMU_EDGE}, INT_MIN, INT_MAX, 0, "flags"},
#endif
    {"psnr", "error[?] variables will be set during encoding", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_PSNR}, INT_MIN, INT_MAX, V|E, "flags"},
    {"truncated", NULL, 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_TRUNCATED}, INT_MIN, INT_MAX, 0, "flags"},
#if FF_API_NORMALIZE_AQP
    {"naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_NORMALIZE_AQP}, INT_MIN, INT_MAX, V|E, "flags"},
#endif
    {"ildct", "use interlaced DCT", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_INTERLACED_DCT}, INT_MIN, INT_MAX, V|E, "flags"},
    {"low_delay", "force low delay", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_LOW_DELAY}, INT_MIN, INT_MAX, V|D|E, "flags"},
    {"global_header", "place global headers in extradata instead of every keyframe", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_GLOBAL_HEADER}, INT_MIN, INT_MAX, V|A|E, "flags"},
    {"bitexact", "use only bitexact functions (except (I)DCT)", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_BITEXACT}, INT_MIN, INT_MAX, A|V|S|D|E, "flags"},
    {"aic", "H.263 advanced intra coding / MPEG-4 AC prediction", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_AC_PRED}, INT_MIN, INT_MAX, V|E, "flags"},
    {"ilme", "interlaced motion estimation", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_INTERLACED_ME}, INT_MIN, INT_MAX, V|E, "flags"},
    {"cgop", "closed GOP", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_CLOSED_GOP}, INT_MIN, INT_MAX, V|E, "flags"},
    {"output_corrupt", "Output even potentially corrupted frames", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG_OUTPUT_CORRUPT}, INT_MIN, INT_MAX, V|D, "flags"},
    {"fast", "allow non-spec-compliant speedup tricks", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG2_FAST}, INT_MIN, INT_MAX, V|E, "flags2"},
    {"noout", "skip bitstream encoding", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG2_NO_OUTPUT}, INT_MIN, INT_MAX, V|E, "flags2"},
    {"ignorecrop", "ignore cropping information from sps", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG2_IGNORE_CROP}, INT_MIN, INT_MAX, V|D, "flags2"},
    {"local_header", "place global headers at every keyframe instead of in extradata", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG2_LOCAL_HEADER}, INT_MIN, INT_MAX, V|E, "flags2"},
    {"chunks", "Frame data might be split into multiple chunks", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG2_CHUNKS}, INT_MIN, INT_MAX, V|D, "flags2"},
    {"showall", "Show all frames before the first keyframe", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG2_SHOW_ALL}, INT_MIN, INT_MAX, V|D, "flags2"},
    {"export_mvs", "export motion vectors through frame side data", 0, AV_OPT_TYPE_CONST, {CODEC_FLAG2_EXPORT_MVS}, INT_MIN, INT_MAX, V|D, "flags2"},
    {"me_method", "set motion estimation method", OFFSET(me_method), AV_OPT_TYPE_INT, {ME_EPZS}, INT_MIN, INT_MAX, V|E, "me_method"},
    {"zero", "zero motion estimation (fastest)", 0, AV_OPT_TYPE_CONST, {ME_ZERO}, INT_MIN, INT_MAX, V|E, "me_method" },
    {"full", "full motion estimation (slowest)", 0, AV_OPT_TYPE_CONST, {ME_FULL}, INT_MIN, INT_MAX, V|E, "me_method" },
    {"epzs", "EPZS motion estimation (default)", 0, AV_OPT_TYPE_CONST, {ME_EPZS}, INT_MIN, INT_MAX, V|E, "me_method" },
    {"esa", "esa motion estimation (alias for full)", 0, AV_OPT_TYPE_CONST, {ME_FULL}, INT_MIN, INT_MAX, V|E, "me_method" },
    {"tesa", "tesa motion estimation", 0, AV_OPT_TYPE_CONST, {ME_TESA}, INT_MIN, INT_MAX, V|E, "me_method" },
    {"dia", "diamond motion estimation (alias for EPZS)", 0, AV_OPT_TYPE_CONST, {ME_EPZS}, INT_MIN, INT_MAX, V|E, "me_method" },
    {"log", "log motion estimation", 0, AV_OPT_TYPE_CONST, {ME_LOG}, INT_MIN, INT_MAX, V|E, "me_method" },
    {"phods", "phods motion estimation", 0, AV_OPT_TYPE_CONST, {ME_PHODS}, INT_MIN, INT_MAX, V|E, "me_method" },
    {"x1", "X1 motion estimation", 0, AV_OPT_TYPE_CONST, {ME_X1}, INT_MIN, INT_MAX, V|E, "me_method" },
    {"hex", "hex motion estimation", 0, AV_OPT_TYPE_CONST, {ME_HEX}, INT_MIN, INT_MAX, V|E, "me_method" },
    {"umh", "umh motion estimation", 0, AV_OPT_TYPE_CONST, {ME_UMH}, INT_MIN, INT_MAX, V|E, "me_method" },
    {"iter", "iter motion estimation", 0, AV_OPT_TYPE_CONST, {ME_ITER}, INT_MIN, INT_MAX, V|E, "me_method" },
    {"extradata_size", NULL, OFFSET(extradata_size), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, {0}, INT_MIN, INT_MAX},
    {"g", "set the group of picture (GOP) size", OFFSET(gop_size), AV_OPT_TYPE_INT, {12}, INT_MIN, INT_MAX, V|E},
    {"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, A|D|E},
    {"ac", "set number of audio channels", OFFSET(channels), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, A|D|E},
    {"cutoff", "set cutoff bandwidth", OFFSET(cutoff), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, A|E},
    {"frame_size", NULL, OFFSET(frame_size), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, A|E},
    {"frame_number", NULL, OFFSET(frame_number), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"delay", NULL, OFFSET(delay), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"qcomp", "video quantizer scale compression (VBR). Constant of ratecontrol equation. Recommended range for default rc_eq: 0.0-1.0", OFFSET(qcompress), AV_OPT_TYPE_FLOAT, {0x3fe0000000000000}, -FLT_MAX, FLT_MAX, V|E},
    {"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), AV_OPT_TYPE_FLOAT, {0x3fe0000000000000}, -1, FLT_MAX, V|E},
    {"qmin", "minimum video quantizer scale (VBR)", OFFSET(qmin), AV_OPT_TYPE_INT, {2}, -1, 69, V|E},
    {"qmax", "maximum video quantizer scale (VBR)", OFFSET(qmax), AV_OPT_TYPE_INT, {31}, -1, 1024, V|E},
    {"qdiff", "maximum difference between the quantizer scales (VBR)", OFFSET(max_qdiff), AV_OPT_TYPE_INT, {3}, INT_MIN, INT_MAX, V|E},
    {"bf", "set maximum number of B frames between non-B-frames", OFFSET(max_b_frames), AV_OPT_TYPE_INT, {DEFAULT}, -1, INT_MAX, V|E},
    {"b_qfactor", "QP factor between P- and B-frames", OFFSET(b_quant_factor), AV_OPT_TYPE_FLOAT, {0x3ff4000000000000}, -FLT_MAX, FLT_MAX, V|E},
    {"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"b_strategy", "strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {0}, INT_MIN, INT_MAX, V|E},
    {"ps", "RTP payload size in bytes", OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"mv_bits", NULL, OFFSET(mv_bits), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"header_bits", NULL, OFFSET(header_bits), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"i_tex_bits", NULL, OFFSET(i_tex_bits), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"p_tex_bits", NULL, OFFSET(p_tex_bits), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"i_count", NULL, OFFSET(i_count), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"p_count", NULL, OFFSET(p_count), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"skip_count", NULL, OFFSET(skip_count), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"misc_bits", NULL, OFFSET(misc_bits), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"frame_bits", NULL, OFFSET(frame_bits), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"codec_tag", NULL, OFFSET(codec_tag), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"bug", "work around not autodetected encoder bugs", OFFSET(workaround_bugs), AV_OPT_TYPE_FLAGS, {FF_BUG_AUTODETECT}, INT_MIN, INT_MAX, V|D, "bug"},
    {"autodetect", NULL, 0, AV_OPT_TYPE_CONST, {FF_BUG_AUTODETECT}, INT_MIN, INT_MAX, V|D, "bug"},
#if FF_API_OLD_MSMPEG4
    {"old_msmpeg4", "some old lavc-generated MSMPEG4v3 files (no autodetection)", 0, AV_OPT_TYPE_CONST, {FF_BUG_OLD_MSMPEG4}, INT_MIN, INT_MAX, V|D, "bug"},
#endif
    {"xvid_ilace", "Xvid interlacing bug (autodetected if FOURCC == XVIX)", 0, AV_OPT_TYPE_CONST, {FF_BUG_XVID_ILACE}, INT_MIN, INT_MAX, V|D, "bug"},
    {"ump4", "(autodetected if FOURCC == UMP4)", 0, AV_OPT_TYPE_CONST, {FF_BUG_UMP4}, INT_MIN, INT_MAX, V|D, "bug"},
    {"no_padding", "padding bug (autodetected)", 0, AV_OPT_TYPE_CONST, {FF_BUG_NO_PADDING}, INT_MIN, INT_MAX, V|D, "bug"},
    {"amv", NULL, 0, AV_OPT_TYPE_CONST, {FF_BUG_AMV}, INT_MIN, INT_MAX, V|D, "bug"},
#if FF_API_AC_VLC
    {"ac_vlc", "illegal VLC bug (autodetected per FOURCC)", 0, AV_OPT_TYPE_CONST, {FF_BUG_AC_VLC}, INT_MIN, INT_MAX, V|D, "bug"},
#endif
    {"qpel_chroma", NULL, 0, AV_OPT_TYPE_CONST, {FF_BUG_QPEL_CHROMA}, INT_MIN, INT_MAX, V|D, "bug"},
    {"std_qpel", "old standard qpel (autodetected per FOURCC/version)", 0, AV_OPT_TYPE_CONST, {FF_BUG_STD_QPEL}, INT_MIN, INT_MAX, V|D, "bug"},
    {"qpel_chroma2", NULL, 0, AV_OPT_TYPE_CONST, {FF_BUG_QPEL_CHROMA2}, INT_MIN, INT_MAX, V|D, "bug"},
    {"direct_blocksize", "direct-qpel-blocksize bug (autodetected per FOURCC/version)", 0, AV_OPT_TYPE_CONST, {FF_BUG_DIRECT_BLOCKSIZE}, INT_MIN, INT_MAX, V|D, "bug"},
    {"edge", "edge padding bug (autodetected per FOURCC/version)", 0, AV_OPT_TYPE_CONST, {FF_BUG_EDGE}, INT_MIN, INT_MAX, V|D, "bug"},
    {"hpel_chroma", NULL, 0, AV_OPT_TYPE_CONST, {FF_BUG_HPEL_CHROMA}, INT_MIN, INT_MAX, V|D, "bug"},
    {"dc_clip", NULL, 0, AV_OPT_TYPE_CONST, {FF_BUG_DC_CLIP}, INT_MIN, INT_MAX, V|D, "bug"},
    {"ms", "work around various bugs in Microsoft's broken decoders", 0, AV_OPT_TYPE_CONST, {FF_BUG_MS}, INT_MIN, INT_MAX, V|D, "bug"},
    {"trunc", "truncated frames", 0, AV_OPT_TYPE_CONST, {FF_BUG_TRUNCATED}, INT_MIN, INT_MAX, V|D, "bug"},
    {"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), AV_OPT_TYPE_INT, {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, AV_OPT_TYPE_CONST, {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 the consequences", 0, AV_OPT_TYPE_CONST, {FF_COMPLIANCE_STRICT}, INT_MIN, INT_MAX, V|D|E, "strict"},
    {"normal", NULL, 0, AV_OPT_TYPE_CONST, {FF_COMPLIANCE_NORMAL}, INT_MIN, INT_MAX, V|D|E, "strict"},
    {"unofficial", "allow unofficial extensions", 0, AV_OPT_TYPE_CONST, {FF_COMPLIANCE_UNOFFICIAL}, INT_MIN, INT_MAX, V|D|E, "strict"},
    {"experimental", "allow non-standardized experimental things", 0, AV_OPT_TYPE_CONST, {FF_COMPLIANCE_EXPERIMENTAL}, INT_MIN, INT_MAX, V|D|E, "strict"},
    {"b_qoffset", "QP offset between P- and B-frames", OFFSET(b_quant_offset), AV_OPT_TYPE_FLOAT, {0x3ff4000000000000}, -FLT_MAX, FLT_MAX, V|E},
    {"err_detect", "set error detection flags", OFFSET(err_recognition), AV_OPT_TYPE_FLAGS, {0}, INT_MIN, INT_MAX, A|V|D, "err_detect"},
    {"crccheck", "verify embedded CRCs", 0, AV_OPT_TYPE_CONST, {AV_EF_CRCCHECK}, INT_MIN, INT_MAX, A|V|D, "err_detect"},
    {"bitstream", "detect bitstream specification deviations", 0, AV_OPT_TYPE_CONST, {AV_EF_BITSTREAM}, INT_MIN, INT_MAX, A|V|D, "err_detect"},
    {"buffer", "detect improper bitstream length", 0, AV_OPT_TYPE_CONST, {AV_EF_BUFFER}, INT_MIN, INT_MAX, A|V|D, "err_detect"},
    {"explode", "abort decoding on minor error detection", 0, AV_OPT_TYPE_CONST, {AV_EF_EXPLODE}, INT_MIN, INT_MAX, A|V|D, "err_detect"},
    {"ignore_err", "ignore errors", 0, AV_OPT_TYPE_CONST, {AV_EF_IGNORE_ERR}, INT_MIN, INT_MAX, A|V|D, "err_detect"},
    {"careful",    "consider things that violate the spec, are fast to check and have not been seen in the wild as errors", 0, AV_OPT_TYPE_CONST, {AV_EF_CAREFUL}, INT_MIN, INT_MAX, A|V|D, "err_detect"},
    {"compliant",  "consider all spec non compliancies as errors", 0, AV_OPT_TYPE_CONST, {AV_EF_COMPLIANT}, INT_MIN, INT_MAX, A|V|D, "err_detect"},
    {"aggressive", "consider things that a sane encoder should not do as an error", 0, AV_OPT_TYPE_CONST, {AV_EF_AGGRESSIVE}, INT_MIN, INT_MAX, A|V|D, "err_detect"},
    {"has_b_frames", NULL, OFFSET(has_b_frames), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"block_align", NULL, OFFSET(block_align), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {0}, 0, 99, V|E},
    {"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {0}, -FLT_MAX, FLT_MAX, V|E},
    {"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"rc_override_count", NULL, OFFSET(rc_override_count), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"rc_eq", "Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.", OFFSET(rc_eq), AV_OPT_TYPE_STRING, {(intptr_t) NULL}, CHAR_MIN, CHAR_MAX, V|E},
    {"maxrate", "maximum bitrate (in bits/s). Used for VBV together with bufsize.", OFFSET(rc_max_rate), AV_OPT_TYPE_INT, {DEFAULT}, 0, INT_MAX, V|A|E},
    {"minrate", "minimum bitrate (in bits/s). Most useful in setting up a CBR encode. It is of little use otherwise.", OFFSET(rc_min_rate), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|A|E},
    {"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, A|V|E},
    {"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {0x3ff0000000000000}, -FLT_MAX, FLT_MAX, V|E},
    {"i_qfactor", "QP factor between P- and I-frames", OFFSET(i_quant_factor), AV_OPT_TYPE_FLOAT, {0xbfe999999999999a}, -FLT_MAX, FLT_MAX, V|E},
    {"i_qoffset", "QP offset between P- and I-frames", OFFSET(i_quant_offset), AV_OPT_TYPE_FLOAT, {0}, -FLT_MAX, FLT_MAX, V|E},
    {"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {0}, -FLT_MAX, FLT_MAX, V|E},
    {"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {DEFAULT}, 0, INT_MAX, V|E, "dct"},
    {"auto", "autoselect a good one (default)", 0, AV_OPT_TYPE_CONST, {FF_DCT_AUTO}, INT_MIN, INT_MAX, V|E, "dct"},
    {"fastint", "fast integer", 0, AV_OPT_TYPE_CONST, {FF_DCT_FASTINT}, INT_MIN, INT_MAX, V|E, "dct"},
#if FF_API_UNUSED_MEMBERS
    {"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {FF_DCT_INT}, INT_MIN, INT_MAX, V|E, "dct"},
#endif /* FF_API_UNUSED_MEMBERS */
    {"mmx", NULL, 0, AV_OPT_TYPE_CONST, {FF_DCT_MMX}, INT_MIN, INT_MAX, V|E, "dct"},
    {"altivec", NULL, 0, AV_OPT_TYPE_CONST, {FF_DCT_ALTIVEC}, INT_MIN, INT_MAX, V|E, "dct"},
    {"faan", "floating point AAN DCT", 0, AV_OPT_TYPE_CONST, {FF_DCT_FAAN}, INT_MIN, INT_MAX, V|E, "dct"},
    {"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), AV_OPT_TYPE_FLOAT, {0}, -FLT_MAX, FLT_MAX, V|E},
    {"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), AV_OPT_TYPE_FLOAT, {0}, -FLT_MAX, FLT_MAX, V|E},
    {"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), AV_OPT_TYPE_FLOAT, {0}, -FLT_MAX, FLT_MAX, V|E},
    {"p_mask", "inter masking", OFFSET(p_masking), AV_OPT_TYPE_FLOAT, {0}, -FLT_MAX, FLT_MAX, V|E},
    {"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), AV_OPT_TYPE_FLOAT, {0}, -FLT_MAX, FLT_MAX, V|E},
    {"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {DEFAULT}, 0, INT_MAX, V|E|D, "idct"},
    {"auto", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_AUTO}, INT_MIN, INT_MAX, V|E|D, "idct"},
    {"int", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_INT}, INT_MIN, INT_MAX, V|E|D, "idct"},
    {"simple", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_SIMPLE}, INT_MIN, INT_MAX, V|E|D, "idct"},
    {"simplemmx", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_SIMPLEMMX}, INT_MIN, INT_MAX, V|E|D, "idct"},
    {"arm", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_ARM}, INT_MIN, INT_MAX, V|E|D, "idct"},
    {"altivec", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_ALTIVEC}, INT_MIN, INT_MAX, V|E|D, "idct"},
#if FF_API_ARCH_SH4
    {"sh4", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_SH4}, INT_MIN, INT_MAX, V|E|D, "idct"},
#endif
    {"simplearm", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_SIMPLEARM}, INT_MIN, INT_MAX, V|E|D, "idct"},
    {"simplearmv5te", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_SIMPLEARMV5TE}, INT_MIN, INT_MAX, V|E|D, "idct"},
    {"simplearmv6", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_SIMPLEARMV6}, INT_MIN, INT_MAX, V|E|D, "idct"},
    {"simpleneon", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_SIMPLENEON}, INT_MIN, INT_MAX, V|E|D, "idct"},
#if FF_API_ARCH_ALPHA
    {"simplealpha", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_SIMPLEALPHA}, INT_MIN, INT_MAX, V|E|D, "idct"},
#endif
#if FF_API_UNUSED_MEMBERS
    {"ipp", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_IPP}, INT_MIN, INT_MAX, V|E|D, "idct"},
#endif /* FF_API_UNUSED_MEMBERS */
    {"xvid", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_XVID}, INT_MIN, INT_MAX, V|E|D, "idct"},
    {"xvidmmx", "deprecated, for compatibility only", 0, AV_OPT_TYPE_CONST, {FF_IDCT_XVID}, INT_MIN, INT_MAX, V|E|D, "idct"},
    {"faani", "floating point AAN IDCT", 0, AV_OPT_TYPE_CONST, {FF_IDCT_FAAN}, INT_MIN, INT_MAX, V|D|E, "idct"},
    {"simpleauto", NULL, 0, AV_OPT_TYPE_CONST, {FF_IDCT_SIMPLEAUTO}, INT_MIN, INT_MAX, V|E|D, "idct"},
    {"slice_count", NULL, OFFSET(slice_count), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"ec", "set error concealment strategy", OFFSET(error_concealment), AV_OPT_TYPE_FLAGS, {3}, INT_MIN, INT_MAX, V|D, "ec"},
    {"guess_mvs", "iterative motion vector (MV) search (slow)", 0, AV_OPT_TYPE_CONST, {FF_EC_GUESS_MVS}, INT_MIN, INT_MAX, V|D, "ec"},
    {"deblock", "use strong deblock filter for damaged MBs", 0, AV_OPT_TYPE_CONST, {FF_EC_DEBLOCK}, INT_MIN, INT_MAX, V|D, "ec"},
    {"favor_inter", "favor predicting from the previous frame", 0, AV_OPT_TYPE_CONST, {FF_EC_FAVOR_INTER}, INT_MIN, INT_MAX, V|D, "ec"},
    {"bits_per_coded_sample", NULL, OFFSET(bits_per_coded_sample), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"pred", "prediction method", OFFSET(prediction_method), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E, "pred"},
    {"left", NULL, 0, AV_OPT_TYPE_CONST, {FF_PRED_LEFT}, INT_MIN, INT_MAX, V|E, "pred"},
    {"plane", NULL, 0, AV_OPT_TYPE_CONST, {FF_PRED_PLANE}, INT_MIN, INT_MAX, V|E, "pred"},
    {"median", NULL, 0, AV_OPT_TYPE_CONST, {FF_PRED_MEDIAN}, INT_MIN, INT_MAX, V|E, "pred"},
    {"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {0}, 0, 10, V|E},
    {"debug", "print specific debug info", OFFSET(debug), AV_OPT_TYPE_FLAGS, {DEFAULT}, 0, INT_MAX, V|A|S|E|D, "debug"},
    {"pict", "picture info", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_PICT_INFO}, INT_MIN, INT_MAX, V|D, "debug"},
    {"rc", "rate control", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_RC}, INT_MIN, INT_MAX, V|E, "debug"},
    {"bitstream", NULL, 0, AV_OPT_TYPE_CONST, {FF_DEBUG_BITSTREAM}, INT_MIN, INT_MAX, V|D, "debug"},
    {"mb_type", "macroblock (MB) type", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_MB_TYPE}, INT_MIN, INT_MAX, V|D, "debug"},
    {"qp", "per-block quantization parameter (QP)", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_QP}, INT_MIN, INT_MAX, V|D, "debug"},
#if FF_API_DEBUG_MV
    {"mv", "motion vector", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_MV}, INT_MIN, INT_MAX, V|D, "debug"},
#endif
    {"dct_coeff", NULL, 0, AV_OPT_TYPE_CONST, {FF_DEBUG_DCT_COEFF}, INT_MIN, INT_MAX, V|D, "debug"},
    {"skip", NULL, 0, AV_OPT_TYPE_CONST, {FF_DEBUG_SKIP}, INT_MIN, INT_MAX, V|D, "debug"},
    {"startcode", NULL, 0, AV_OPT_TYPE_CONST, {FF_DEBUG_STARTCODE}, INT_MIN, INT_MAX, V|D, "debug"},
#if FF_API_UNUSED_MEMBERS
    {"pts", NULL, 0, AV_OPT_TYPE_CONST, {FF_DEBUG_PTS}, INT_MIN, INT_MAX, V|D, "debug"},
#endif /* FF_API_UNUSED_MEMBERS */
    {"er", "error recognition", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_ER}, INT_MIN, INT_MAX, V|D, "debug"},
    {"mmco", "memory management control operations (H.264)", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_MMCO}, INT_MIN, INT_MAX, V|D, "debug"},
    {"bugs", NULL, 0, AV_OPT_TYPE_CONST, {FF_DEBUG_BUGS}, INT_MIN, INT_MAX, V|D, "debug"},
    {"vis_qp", "visualize quantization parameter (QP), lower QP are tinted greener", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_VIS_QP}, INT_MIN, INT_MAX, V|D, "debug"},
    {"vis_mb_type", "visualize block types", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_VIS_MB_TYPE}, INT_MIN, INT_MAX, V|D, "debug"},
    {"buffers", "picture buffer allocations", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_BUFFERS}, INT_MIN, INT_MAX, V|D, "debug"},
    {"thread_ops", "threading operations", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_THREADS}, INT_MIN, INT_MAX, V|A|D, "debug"},
    {"nomc", "skip motion compensation", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_NOMC}, INT_MIN, INT_MAX, V|A|D, "debug"},
#if FF_API_VISMV
    {"vismv", "visualize motion vectors (MVs) (deprecated)", OFFSET(debug_mv), AV_OPT_TYPE_FLAGS, {DEFAULT}, 0, INT_MAX, V|D, "debug_mv"},
    {"pf", "forward predicted MVs of P-frames", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_VIS_MV_P_FOR}, INT_MIN, INT_MAX, V|D, "debug_mv"},
    {"bf", "forward predicted MVs of B-frames", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_VIS_MV_B_FOR}, INT_MIN, INT_MAX, V|D, "debug_mv"},
    {"bb", "backward predicted MVs of B-frames", 0, AV_OPT_TYPE_CONST, {FF_DEBUG_VIS_MV_B_BACK}, INT_MIN, INT_MAX, V|D, "debug_mv"},
#endif
    {"cmp", "full-pel ME compare function", OFFSET(me_cmp), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"subcmp", "sub-pel ME compare function", OFFSET(me_sub_cmp), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"mbcmp", "macroblock compare function", OFFSET(mb_cmp), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"ildctcmp", "interlaced DCT compare function", OFFSET(ildct_cmp), AV_OPT_TYPE_INT, {FF_CMP_VSAD}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"last_pred", "amount of motion predictors from the previous frame", OFFSET(last_predictor_count), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"preme", "pre motion estimation", OFFSET(pre_me), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"sad", "sum of absolute differences, fast (default)", 0, AV_OPT_TYPE_CONST, {FF_CMP_SAD}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"sse", "sum of squared errors", 0, AV_OPT_TYPE_CONST, {FF_CMP_SSE}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"satd", "sum of absolute Hadamard transformed differences", 0, AV_OPT_TYPE_CONST, {FF_CMP_SATD}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"dct", "sum of absolute DCT transformed differences", 0, AV_OPT_TYPE_CONST, {FF_CMP_DCT}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"psnr", "sum of squared quantization errors (avoid, low quality)", 0, AV_OPT_TYPE_CONST, {FF_CMP_PSNR}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"bit", "number of bits needed for the block", 0, AV_OPT_TYPE_CONST, {FF_CMP_BIT}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"rd", "rate distortion optimal, slow", 0, AV_OPT_TYPE_CONST, {FF_CMP_RD}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"zero", "0", 0, AV_OPT_TYPE_CONST, {FF_CMP_ZERO}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"vsad", "sum of absolute vertical differences", 0, AV_OPT_TYPE_CONST, {FF_CMP_VSAD}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"vsse", "sum of squared vertical differences", 0, AV_OPT_TYPE_CONST, {FF_CMP_VSSE}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"nsse", "noise preserving sum of squared differences", 0, AV_OPT_TYPE_CONST, {FF_CMP_NSSE}, INT_MIN, INT_MAX, V|E, "cmp_func"},
#if CONFIG_SNOW_ENCODER
    {"w53", "5/3 wavelet, only used in snow", 0, AV_OPT_TYPE_CONST, {FF_CMP_W53}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"w97", "9/7 wavelet, only used in snow", 0, AV_OPT_TYPE_CONST, {FF_CMP_W97}, INT_MIN, INT_MAX, V|E, "cmp_func"},
#endif
    {"dctmax", NULL, 0, AV_OPT_TYPE_CONST, {FF_CMP_DCTMAX}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"chroma", NULL, 0, AV_OPT_TYPE_CONST, {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), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"subq", "sub-pel motion estimation quality", OFFSET(me_subpel_quality), AV_OPT_TYPE_INT, {8}, INT_MIN, INT_MAX, V|E},
    {"dtg_active_format", NULL, OFFSET(dtg_active_format), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"ibias", "intra quant bias", OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {FF_DEFAULT_QUANT_BIAS}, INT_MIN, INT_MAX, V|E},
    {"pbias", "inter quant bias", OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {FF_DEFAULT_QUANT_BIAS}, INT_MIN, INT_MAX, V|E},
    {"global_quality", NULL, OFFSET(global_quality), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|A|E},
    {"coder", NULL, OFFSET(coder_type), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E, "coder"},
    {"vlc", "variable length coder / Huffman coder", 0, AV_OPT_TYPE_CONST, {FF_CODER_TYPE_VLC}, INT_MIN, INT_MAX, V|E, "coder"},
    {"ac", "arithmetic coder", 0, AV_OPT_TYPE_CONST, {FF_CODER_TYPE_AC}, INT_MIN, INT_MAX, V|E, "coder"},
    {"raw", "raw (no encoding)", 0, AV_OPT_TYPE_CONST, {FF_CODER_TYPE_RAW}, INT_MIN, INT_MAX, V|E, "coder"},
    {"rle", "run-length coder", 0, AV_OPT_TYPE_CONST, {FF_CODER_TYPE_RLE}, INT_MIN, INT_MAX, V|E, "coder"},
#if FF_API_UNUSED_MEMBERS
    {"deflate", "deflate-based coder", 0, AV_OPT_TYPE_CONST, {FF_CODER_TYPE_DEFLATE}, INT_MIN, INT_MAX, V|E, "coder"},
#endif /* FF_API_UNUSED_MEMBERS */
    {"context", "context model", OFFSET(context_model), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"slice_flags", NULL, OFFSET(slice_flags), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
#if FF_API_XVMC
    {"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
#endif /* FF_API_XVMC */
    {"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), AV_OPT_TYPE_INT, {DEFAULT}, 0, 2, V|E, "mbd"},
    {"simple", "use mbcmp (default)", 0, AV_OPT_TYPE_CONST, {FF_MB_DECISION_SIMPLE}, INT_MIN, INT_MAX, V|E, "mbd"},
    {"bits", "use fewest bits", 0, AV_OPT_TYPE_CONST, {FF_MB_DECISION_BITS}, INT_MIN, INT_MAX, V|E, "mbd"},
    {"rd", "use best rate distortion", 0, AV_OPT_TYPE_CONST, {FF_MB_DECISION_RD}, INT_MIN, INT_MAX, V|E, "mbd"},
    {"stream_codec_tag", NULL, OFFSET(stream_codec_tag), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"lmin", "minimum Lagrange factor (VBR)", OFFSET(lmin), AV_OPT_TYPE_INT, {2*FF_QP2LAMBDA}, 0, INT_MAX, V|E},
    {"lmax", "maximum Lagrange factor (VBR)", OFFSET(lmax), AV_OPT_TYPE_INT, {31*FF_QP2LAMBDA}, 0, INT_MAX, V|E},
    {"nr", "noise reduction", OFFSET(noise_reduction), AV_OPT_TYPE_INT, {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), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"flags2", NULL, OFFSET(flags2), AV_OPT_TYPE_FLAGS, {DEFAULT}, 0, UINT_MAX, V|A|E|D, "flags2"},
#if FF_API_ERROR_RATE
    {"error", NULL, OFFSET(error_rate), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
#endif
    {"threads", NULL, OFFSET(thread_count), AV_OPT_TYPE_INT, {1}, 0, INT_MAX, V|A|E|D, "threads"},
    {"auto", "autodetect a suitable number of threads to use", 0, AV_OPT_TYPE_CONST, {0}, INT_MIN, INT_MAX, V|E|D, "threads"},
    {"me_threshold", "motion estimation threshold", OFFSET(me_threshold), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"dc", "intra_dc_precision", OFFSET(intra_dc_precision), AV_OPT_TYPE_INT, {0}, -8, 16, V|E},
    {"nssew", "nsse weight", OFFSET(nsse_weight), AV_OPT_TYPE_INT, {8}, INT_MIN, INT_MAX, V|E},
    {"skip_top", "number of macroblock rows at the top which are skipped", OFFSET(skip_top), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|D},
    {"skip_bottom", "number of macroblock rows at the bottom which are skipped", OFFSET(skip_bottom), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|D},
    {"profile", NULL, OFFSET(profile), AV_OPT_TYPE_INT, {FF_PROFILE_UNKNOWN}, INT_MIN, INT_MAX, V|A|E, "profile"},
    {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_UNKNOWN}, INT_MIN, INT_MAX, V|A|E, "profile"},
    {"aac_main", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_AAC_MAIN}, INT_MIN, INT_MAX, A|E, "profile"},
    {"aac_low", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_AAC_LOW}, INT_MIN, INT_MAX, A|E, "profile"},
    {"aac_ssr", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_AAC_SSR}, INT_MIN, INT_MAX, A|E, "profile"},
    {"aac_ltp", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_AAC_LTP}, INT_MIN, INT_MAX, A|E, "profile"},
    {"aac_he", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_AAC_HE}, INT_MIN, INT_MAX, A|E, "profile"},
    {"aac_he_v2", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_AAC_HE_V2}, INT_MIN, INT_MAX, A|E, "profile"},
    {"aac_ld", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_AAC_LD}, INT_MIN, INT_MAX, A|E, "profile"},
    {"aac_eld", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_AAC_ELD}, INT_MIN, INT_MAX, A|E, "profile"},
    {"mpeg2_aac_low", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_MPEG2_AAC_LOW}, INT_MIN, INT_MAX, A|E, "profile"},
    {"mpeg2_aac_he", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_MPEG2_AAC_HE}, INT_MIN, INT_MAX, A|E, "profile"},
    {"dts", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_DTS}, INT_MIN, INT_MAX, A|E, "profile"},
    {"dts_es", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_DTS_ES}, INT_MIN, INT_MAX, A|E, "profile"},
    {"dts_96_24", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_DTS_96_24}, INT_MIN, INT_MAX, A|E, "profile"},
    {"dts_hd_hra", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_DTS_HD_HRA}, INT_MIN, INT_MAX, A|E, "profile"},
    {"dts_hd_ma", NULL, 0, AV_OPT_TYPE_CONST, {FF_PROFILE_DTS_HD_MA}, INT_MIN, INT_MAX, A|E, "profile"},
    {"level", NULL, OFFSET(level), AV_OPT_TYPE_INT, {FF_LEVEL_UNKNOWN}, INT_MIN, INT_MAX, V|A|E, "level"},
    {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {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), AV_OPT_TYPE_INT, {0}, 0, INT_MAX, V|A|D},
    {"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {FF_CMP_DCTMAX}, INT_MIN, INT_MAX, V|E, "cmp_func"},
    {"border_mask", "increase the quantizer for macroblocks close to borders", OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {0}, -FLT_MAX, FLT_MAX, V|E},
    {"mblmin", "minimum macroblock Lagrange factor (VBR)", OFFSET(mb_lmin), AV_OPT_TYPE_INT, {FF_QP2LAMBDA * 2}, 1, FF_LAMBDA_MAX, V|E},
    {"mblmax", "maximum macroblock Lagrange factor (VBR)", OFFSET(mb_lmax), AV_OPT_TYPE_INT, {FF_QP2LAMBDA * 31}, 1, FF_LAMBDA_MAX, V|E},
    {"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {256}, INT_MIN, INT_MAX, V|E},
    {"skip_loop_filter", "skip loop filtering process for the selected frames", OFFSET(skip_loop_filter), AV_OPT_TYPE_INT, {AVDISCARD_DEFAULT}, INT_MIN, INT_MAX, V|D, "avdiscard"},
    {"skip_idct"       , "skip IDCT/dequantization for the selected frames",    OFFSET(skip_idct),        AV_OPT_TYPE_INT, {AVDISCARD_DEFAULT}, INT_MIN, INT_MAX, V|D, "avdiscard"},
    {"skip_frame"      , "skip decoding for the selected frames",               OFFSET(skip_frame),       AV_OPT_TYPE_INT, {AVDISCARD_DEFAULT}, INT_MIN, INT_MAX, V|D, "avdiscard"},
    {"none"            , "discard no frame",                    0, AV_OPT_TYPE_CONST, {AVDISCARD_NONE}, INT_MIN, INT_MAX, V|D, "avdiscard"},
    {"default"         , "discard useless frames",              0, AV_OPT_TYPE_CONST, {AVDISCARD_DEFAULT}, INT_MIN, INT_MAX, V|D, "avdiscard"},
    {"noref"           , "discard all non-reference frames",    0, AV_OPT_TYPE_CONST, {AVDISCARD_NONREF}, INT_MIN, INT_MAX, V|D, "avdiscard"},
    {"bidir"           , "discard all bidirectional frames",    0, AV_OPT_TYPE_CONST, {AVDISCARD_BIDIR}, INT_MIN, INT_MAX, V|D, "avdiscard"},
    {"nokey"           , "discard all frames except keyframes", 0, AV_OPT_TYPE_CONST, {AVDISCARD_NONKEY}, INT_MIN, INT_MAX, V|D, "avdiscard"},
    {"nointra"         , "discard all frames except I frames",  0, AV_OPT_TYPE_CONST, {AVDISCARD_NONINTRA}, INT_MIN, INT_MAX, V|D, "avdiscard"},
    {"all"             , "discard all frames",                  0, AV_OPT_TYPE_CONST, {AVDISCARD_ALL}, INT_MIN, INT_MAX, V|D, "avdiscard"},
    {"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), AV_OPT_TYPE_INT, {1}, 0, 4, V|E},
    {"brd_scale", "downscale frames for dynamic B-frame decision", OFFSET(brd_scale), AV_OPT_TYPE_INT, {DEFAULT}, 0, 10, V|E},
    {"keyint_min", "minimum interval between IDR-frames", OFFSET(keyint_min), AV_OPT_TYPE_INT, {25}, INT_MIN, INT_MAX, V|E},
    {"refs", "reference frames to consider for motion compensation", OFFSET(refs), AV_OPT_TYPE_INT, {1}, INT_MIN, INT_MAX, V|E},
    {"chromaoffset", "chroma QP offset from luma", OFFSET(chromaoffset), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|E},
    {"trellis", "rate-distortion optimal quantization", OFFSET(trellis), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX, V|A|E},
#if FF_API_UNUSED_MEMBERS
    {"sc_factor", "multiplied by qscale for each frame and added to scene_change_score", OFFSET(scenechange_factor), AV_OPT_TYPE_INT, {6}, 0, INT_MAX, V|E},
#endif /* FF_API_UNUSED_MEMBERS */
    {"mv0_threshold", NULL, OFFSET(mv0_threshold), AV_OPT_TYPE_INT, {256}, 0, INT_MAX, V|E},
    {"b_sensitivity", "adjust sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), AV_OPT_TYPE_INT, {40}, 1, INT_MAX, V|E},
    {"compression_level", NULL, OFFSET(compression_level), AV_OPT_TYPE_INT, {FF_COMPRESSION_DEFAULT}, INT_MIN, INT_MAX, V|A|E},
    {"min_prediction_order", NULL, OFFSET(min_prediction_order), AV_OPT_TYPE_INT, {-1}, INT_MIN, INT_MAX, A|E},
    {"max_prediction_order", NULL, OFFSET(max_prediction_order), AV_OPT_TYPE_INT, {-1}, INT_MIN, INT_MAX, A|E},
    {"timecode_frame_start", "GOP timecode frame start number, in non-drop-frame format", OFFSET(timecode_frame_start), AV_OPT_TYPE_INT64, {0}, 0, INT64_MAX, V|E},
#if FF_API_REQUEST_CHANNELS
    {"request_channels", "set desired number of audio channels", OFFSET(request_channels), AV_OPT_TYPE_INT, {DEFAULT }, 0, INT_MAX, A|D},
#endif
    {"bits_per_raw_sample", NULL, OFFSET(bits_per_raw_sample), AV_OPT_TYPE_INT, {DEFAULT}, INT_MIN, INT_MAX},
    {"channel_layout", NULL, OFFSET(channel_layout), AV_OPT_TYPE_INT64, {DEFAULT}, 0, INT64_MAX, A|E|D, "channel_layout"},
    {"request_channel_layout", NULL, OFFSET(request_channel_layout), AV_OPT_TYPE_INT64, {DEFAULT}, 0, INT64_MAX, A|D, "request_channel_layout"},
    {"rc_max_vbv_use", NULL, OFFSET(rc_max_available_vbv_use), AV_OPT_TYPE_FLOAT, {0}, 0.0, FLT_MAX, V|E},
    {"rc_min_vbv_use", NULL, OFFSET(rc_min_vbv_overflow_use),  AV_OPT_TYPE_FLOAT, {0x4008000000000000}, 0.0, FLT_MAX, V|E},
    {"ticks_per_frame", NULL, OFFSET(ticks_per_frame), AV_OPT_TYPE_INT, {1}, 1, INT_MAX, A|V|E|D},
    {"color_primaries", "color primaries", OFFSET(color_primaries), AV_OPT_TYPE_INT, {AVCOL_PRI_UNSPECIFIED}, 1, AVCOL_PRI_NB-1, V|E|D, "color_primaries_type"},
    {"bt709", "BT.709", 0, AV_OPT_TYPE_CONST, {AVCOL_PRI_BT709}, INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
    {"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {AVCOL_PRI_UNSPECIFIED}, INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
    {"bt470m", "BT.470 M", 0, AV_OPT_TYPE_CONST, {AVCOL_PRI_BT470M}, INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
    {"bt470bg", "BT.470 BG", 0, AV_OPT_TYPE_CONST, {AVCOL_PRI_BT470BG}, INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
    {"smpte170m", "SMPTE 170 M", 0, AV_OPT_TYPE_CONST, {AVCOL_PRI_SMPTE170M}, INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
    {"smpte240m", "SMPTE 240 M", 0, AV_OPT_TYPE_CONST, {AVCOL_PRI_SMPTE240M}, INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
    {"film", "Film", 0, AV_OPT_TYPE_CONST, {AVCOL_PRI_FILM}, INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
    {"bt2020", "BT.2020", 0, AV_OPT_TYPE_CONST, {AVCOL_PRI_BT2020}, INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
    {"color_trc", "color transfert characteristic", OFFSET(color_trc), AV_OPT_TYPE_INT, {AVCOL_TRC_UNSPECIFIED}, 1, AVCOL_TRC_NB-1, V|E|D, "color_trc_type"},
    {"bt709", "BT.709", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_BT709}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_UNSPECIFIED}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"gamma22", "Gamma 2.2", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_GAMMA22}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"gamma28", "Gamma 2.8", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_GAMMA28}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"smpte170m", "SMPTE 170 M", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_SMPTE170M}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"smpte240m", "SMPTE 240 M", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_SMPTE240M }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"linear", "Linear", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_LINEAR}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"log", "SMPTE 240 M", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_LOG}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"log_sqrt", "SMPTE 240 M", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_LOG_SQRT}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"iec61966_2_4", "SMPTE 240 M", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_IEC61966_2_4}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"bt1361", "BT.1361", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_BT1361_ECG}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"iec61966_2_1", "SMPTE 240 M", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_IEC61966_2_1}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"bt2020_10bit", "BT.2020 - 10 bit", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_BT2020_10}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"bt2020_12bit", "BT.2020 - 12 bit", 0, AV_OPT_TYPE_CONST, {AVCOL_TRC_BT2020_12}, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
    {"colorspace", "colorspace", OFFSET(colorspace), AV_OPT_TYPE_INT, {AVCOL_SPC_UNSPECIFIED}, 1, AVCOL_SPC_NB-1, V|E|D, "colorspace_type"},
    {"rgb", "RGB", 0, AV_OPT_TYPE_CONST, {AVCOL_SPC_RGB}, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
    {"bt709", "BT.709", 0, AV_OPT_TYPE_CONST, {AVCOL_SPC_BT709 }, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
    {"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {AVCOL_SPC_UNSPECIFIED}, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
    {"fcc", "FourCC", 0, AV_OPT_TYPE_CONST, {AVCOL_SPC_FCC}, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
    {"bt470bg", "BT.470 BG", 0, AV_OPT_TYPE_CONST, {AVCOL_SPC_BT470BG}, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
    {"smpte170m", "SMPTE 170 M", 0, AV_OPT_TYPE_CONST, {AVCOL_SPC_SMPTE170M}, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
    {"smpte240m", "SMPTE 240 M", 0, AV_OPT_TYPE_CONST, {AVCOL_SPC_SMPTE240M}, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
    {"ycocg", "YCOCG", 0, AV_OPT_TYPE_CONST, {AVCOL_SPC_YCOCG}, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
    {"bt2020_ncl", "BT.2020 NCL", 0, AV_OPT_TYPE_CONST, {AVCOL_SPC_BT2020_NCL}, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
    {"bt2020_cl", "BT.2020 CL", 0, AV_OPT_TYPE_CONST, {AVCOL_SPC_BT2020_CL}, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
    {"color_range", "color range", OFFSET(color_range), AV_OPT_TYPE_INT, {AVCOL_RANGE_UNSPECIFIED}, 0, AVCOL_RANGE_NB-1, V|E|D, "color_range_type"},
    {"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {AVCOL_RANGE_UNSPECIFIED}, INT_MIN, INT_MAX, V|E|D, "color_range_type"},
    {"mpeg", "MPEG (219*2^(n-8))", 0, AV_OPT_TYPE_CONST, {AVCOL_RANGE_MPEG}, INT_MIN, INT_MAX, V|E|D, "color_range_type"},
    {"jpeg", "JPEG (2^n-1)", 0, AV_OPT_TYPE_CONST, {AVCOL_RANGE_JPEG}, INT_MIN, INT_MAX, V|E|D, "color_range_type"},
    {"chroma_sample_location", NULL, OFFSET(chroma_sample_location), AV_OPT_TYPE_INT, {AVCHROMA_LOC_UNSPECIFIED}, 0, AVCHROMA_LOC_NB-1, V|E|D},
    {"log_level_offset", "set the log level offset", OFFSET(log_level_offset), AV_OPT_TYPE_INT, {0}, INT_MIN, INT_MAX },
    {"slices", "number of slices, used in parallelized encoding", OFFSET(slices), AV_OPT_TYPE_INT, {0}, 0, INT_MAX, V|E},
    {"thread_type", "select multithreading type", OFFSET(thread_type), AV_OPT_TYPE_FLAGS, {FF_THREAD_SLICE|FF_THREAD_FRAME}, 0, INT_MAX, V|A|E|D, "thread_type"},
    {"slice", NULL, 0, AV_OPT_TYPE_CONST, {FF_THREAD_SLICE}, INT_MIN, INT_MAX, V|E|D, "thread_type"},
    {"frame", NULL, 0, AV_OPT_TYPE_CONST, {FF_THREAD_FRAME}, INT_MIN, INT_MAX, V|E|D, "thread_type"},
    {"audio_service_type", "audio service type", OFFSET(audio_service_type), AV_OPT_TYPE_INT, {AV_AUDIO_SERVICE_TYPE_MAIN}, 0, AV_AUDIO_SERVICE_TYPE_NB-1, A|E, "audio_service_type"},
    {"ma", "Main Audio Service", 0, AV_OPT_TYPE_CONST, {AV_AUDIO_SERVICE_TYPE_MAIN}, INT_MIN, INT_MAX, A|E, "audio_service_type"},
    {"ef", "Effects", 0, AV_OPT_TYPE_CONST, {AV_AUDIO_SERVICE_TYPE_EFFECTS}, INT_MIN, INT_MAX, A|E, "audio_service_type"},
    {"vi", "Visually Impaired", 0, AV_OPT_TYPE_CONST, {AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED}, INT_MIN, INT_MAX, A|E, "audio_service_type"},
    {"hi", "Hearing Impaired", 0, AV_OPT_TYPE_CONST, {AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED}, INT_MIN, INT_MAX, A|E, "audio_service_type"},
    {"di", "Dialogue", 0, AV_OPT_TYPE_CONST, {AV_AUDIO_SERVICE_TYPE_DIALOGUE}, INT_MIN, INT_MAX, A|E, "audio_service_type"},
    {"co", "Commentary", 0, AV_OPT_TYPE_CONST, {AV_AUDIO_SERVICE_TYPE_COMMENTARY}, INT_MIN, INT_MAX, A|E, "audio_service_type"},
    {"em", "Emergency", 0, AV_OPT_TYPE_CONST, {AV_AUDIO_SERVICE_TYPE_EMERGENCY}, INT_MIN, INT_MAX, A|E, "audio_service_type"},
    {"vo", "Voice Over", 0, AV_OPT_TYPE_CONST, {AV_AUDIO_SERVICE_TYPE_VOICE_OVER}, INT_MIN, INT_MAX, A|E, "audio_service_type"},
    {"ka", "Karaoke", 0, AV_OPT_TYPE_CONST, {AV_AUDIO_SERVICE_TYPE_KARAOKE}, INT_MIN, INT_MAX, A|E, "audio_service_type"},
    {"request_sample_fmt", "sample format audio decoders should prefer", OFFSET(request_sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {AV_SAMPLE_FMT_NONE}, -1, INT_MAX, A|D, "request_sample_fmt"},
    {"pkt_timebase", NULL, OFFSET(pkt_timebase), AV_OPT_TYPE_RATIONAL, {0}, 0, INT_MAX, 0},
    {"sub_charenc", "set input text subtitles character encoding", OFFSET(sub_charenc), AV_OPT_TYPE_STRING, {(intptr_t) NULL}, CHAR_MIN, CHAR_MAX, S|D},
    {"sub_charenc_mode", "set input text subtitles character encoding mode", OFFSET(sub_charenc_mode), AV_OPT_TYPE_FLAGS, {FF_SUB_CHARENC_MODE_AUTOMATIC}, -1, INT_MAX, S|D, "sub_charenc_mode"},
    {"do_nothing", NULL, 0, AV_OPT_TYPE_CONST, {FF_SUB_CHARENC_MODE_DO_NOTHING}, INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
    {"auto", NULL, 0, AV_OPT_TYPE_CONST, {FF_SUB_CHARENC_MODE_AUTOMATIC}, INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
    {"pre_decoder", NULL, 0, AV_OPT_TYPE_CONST, {FF_SUB_CHARENC_MODE_PRE_DECODER}, INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
    {"refcounted_frames", NULL, OFFSET(refcounted_frames), AV_OPT_TYPE_INT, {0}, 0, 1, A|V|D },
    {"side_data_only_packets", NULL, OFFSET(side_data_only_packets), AV_OPT_TYPE_INT, {0}, 0, 1, A|V|E },
    {"skip_alpha", "Skip processing alpha", OFFSET(skip_alpha), AV_OPT_TYPE_INT, {0}, 0, 1, V|D },
    {"field_order", "Field order", OFFSET(field_order), AV_OPT_TYPE_INT, {AV_FIELD_UNKNOWN}, 0, 5, V|D|E, "field_order" },
    {"progressive", NULL, 0, AV_OPT_TYPE_CONST, {AV_FIELD_PROGRESSIVE}, 0, 0, V|D|E, "field_order" },
    {"tt", NULL, 0, AV_OPT_TYPE_CONST, {AV_FIELD_TT}, 0, 0, V|D|E, "field_order" },
    {"bb", NULL, 0, AV_OPT_TYPE_CONST, {AV_FIELD_BB}, 0, 0, V|D|E, "field_order" },
    {"tb", NULL, 0, AV_OPT_TYPE_CONST, {AV_FIELD_TB}, 0, 0, V|D|E, "field_order" },
    {"bt", NULL, 0, AV_OPT_TYPE_CONST, {AV_FIELD_BT}, 0, 0, V|D|E, "field_order" },
#else
	{"b", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT, {.i64 = AV_CODEC_DEFAULT_BITRATE }, 0, INT_MAX, A|V|E},
{"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT, {.i64 = 128*1000 }, 0, INT_MAX, A|E},
{"bt", "Set video bitrate tolerance (in bits/s). In 1-pass mode, bitrate tolerance specifies how far "
       "ratecontrol is willing to deviate from the target average bitrate value. This is not related "
       "to minimum/maximum bitrate. Lowering tolerance too much has an adverse effect on quality.",
       OFFSET(bit_rate_tolerance), AV_OPT_TYPE_INT, {.i64 = AV_CODEC_DEFAULT_BITRATE*20 }, 1, INT_MAX, V|E},
{"flags", NULL, OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, 0, UINT_MAX, V|A|S|E|D, "flags"},
{"unaligned", "allow decoders to produce unaligned output", 0, AV_OPT_TYPE_CONST, { .i64 = CODEC_FLAG_UNALIGNED }, INT_MIN, INT_MAX, V | D, "flags" },
{"mv4", "use four motion vectors per macroblock (MPEG-4)", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_4MV }, INT_MIN, INT_MAX, V|E, "flags"},
{"qpel", "use 1/4-pel motion compensation", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_QPEL }, INT_MIN, INT_MAX, V|E, "flags"},
{"loop", "use loop filter", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_LOOP_FILTER }, INT_MIN, INT_MAX, V|E, "flags"},
{"qscale", "use fixed qscale", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_QSCALE }, INT_MIN, INT_MAX, 0, "flags"},
#if FF_API_GMC
{"gmc", "use gmc", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_GMC }, INT_MIN, INT_MAX, V|E, "flags"},
#endif
#if FF_API_MV0
{"mv0", "always try a mb with mv=<0,0>", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_MV0 }, INT_MIN, INT_MAX, V|E, "flags"},
#endif
#if FF_API_INPUT_PRESERVED
{"input_preserved", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_INPUT_PRESERVED }, INT_MIN, INT_MAX, 0, "flags"},
#endif
{"pass1", "use internal 2-pass ratecontrol in first  pass mode", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_PASS1 }, INT_MIN, INT_MAX, 0, "flags"},
{"pass2", "use internal 2-pass ratecontrol in second pass mode", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_PASS2 }, INT_MIN, INT_MAX, 0, "flags"},
{"gray", "only decode/encode grayscale", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_GRAY }, INT_MIN, INT_MAX, V|E|D, "flags"},
#if FF_API_EMU_EDGE
{"emu_edge", "do not draw edges", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_EMU_EDGE }, INT_MIN, INT_MAX, 0, "flags"},
#endif
{"psnr", "error[?] variables will be set during encoding", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_PSNR }, INT_MIN, INT_MAX, V|E, "flags"},
{"truncated", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_TRUNCATED }, INT_MIN, INT_MAX, 0, "flags"},
#if FF_API_NORMALIZE_AQP
{"naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_NORMALIZE_AQP }, INT_MIN, INT_MAX, V|E, "flags"},
#endif
{"ildct", "use interlaced DCT", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_INTERLACED_DCT }, INT_MIN, INT_MAX, V|E, "flags"},
{"low_delay", "force low delay", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_LOW_DELAY }, INT_MIN, INT_MAX, V|D|E, "flags"},
{"global_header", "place global headers in extradata instead of every keyframe", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_GLOBAL_HEADER }, INT_MIN, INT_MAX, V|A|E, "flags"},
{"bitexact", "use only bitexact functions (except (I)DCT)", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_BITEXACT }, INT_MIN, INT_MAX, A|V|S|D|E, "flags"},
{"aic", "H.263 advanced intra coding / MPEG-4 AC prediction", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_AC_PRED }, INT_MIN, INT_MAX, V|E, "flags"},
{"ilme", "interlaced motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_INTERLACED_ME }, INT_MIN, INT_MAX, V|E, "flags"},
{"cgop", "closed GOP", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_CLOSED_GOP }, INT_MIN, INT_MAX, V|E, "flags"},
{"output_corrupt", "Output even potentially corrupted frames", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_OUTPUT_CORRUPT }, INT_MIN, INT_MAX, V|D, "flags"},
{"fast", "allow non-spec-compliant speedup tricks", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG2_FAST }, INT_MIN, INT_MAX, V|E, "flags2"},
{"noout", "skip bitstream encoding", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG2_NO_OUTPUT }, INT_MIN, INT_MAX, V|E, "flags2"},
{"ignorecrop", "ignore cropping information from sps", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG2_IGNORE_CROP }, INT_MIN, INT_MAX, V|D, "flags2"},
{"local_header", "place global headers at every keyframe instead of in extradata", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG2_LOCAL_HEADER }, INT_MIN, INT_MAX, V|E, "flags2"},
{"chunks", "Frame data might be split into multiple chunks", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG2_CHUNKS }, INT_MIN, INT_MAX, V|D, "flags2"},
{"showall", "Show all frames before the first keyframe", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG2_SHOW_ALL }, INT_MIN, INT_MAX, V|D, "flags2"},
{"export_mvs", "export motion vectors through frame side data", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG2_EXPORT_MVS}, INT_MIN, INT_MAX, V|D, "flags2"},
{"me_method", "set motion estimation method", OFFSET(me_method), AV_OPT_TYPE_INT, {.i64 = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method"},
{"zero", "zero motion estimation (fastest)", 0, AV_OPT_TYPE_CONST, {.i64 = ME_ZERO }, INT_MIN, INT_MAX, V|E, "me_method" },
{"full", "full motion estimation (slowest)", 0, AV_OPT_TYPE_CONST, {.i64 = ME_FULL }, INT_MIN, INT_MAX, V|E, "me_method" },
{"epzs", "EPZS motion estimation (default)", 0, AV_OPT_TYPE_CONST, {.i64 = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method" },
{"esa", "esa motion estimation (alias for full)", 0, AV_OPT_TYPE_CONST, {.i64 = ME_FULL }, INT_MIN, INT_MAX, V|E, "me_method" },
{"tesa", "tesa motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_TESA }, INT_MIN, INT_MAX, V|E, "me_method" },
{"dia", "diamond motion estimation (alias for EPZS)", 0, AV_OPT_TYPE_CONST, {.i64 = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method" },
{"log", "log motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_LOG }, INT_MIN, INT_MAX, V|E, "me_method" },
{"phods", "phods motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_PHODS }, INT_MIN, INT_MAX, V|E, "me_method" },
{"x1", "X1 motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_X1 }, INT_MIN, INT_MAX, V|E, "me_method" },
{"hex", "hex motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_HEX }, INT_MIN, INT_MAX, V|E, "me_method" },
{"umh", "umh motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_UMH }, INT_MIN, INT_MAX, V|E, "me_method" },
{"iter", "iter motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_ITER }, INT_MIN, INT_MAX, V|E, "me_method" },
{"extradata_size", NULL, OFFSET(extradata_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, INT_MIN, INT_MAX},
{"g", "set the group of picture (GOP) size", OFFSET(gop_size), AV_OPT_TYPE_INT, {.i64 = 12 }, INT_MIN, INT_MAX, V|E},
{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|D|E},
{"ac", "set number of audio channels", OFFSET(channels), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|D|E},
{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|E},
{"frame_size", NULL, OFFSET(frame_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|E},
{"frame_number", NULL, OFFSET(frame_number), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"delay", NULL, OFFSET(delay), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"qcomp", "video quantizer scale compression (VBR). Constant of ratecontrol equation. "
          "Recommended range for default rc_eq: 0.0-1.0",
          OFFSET(qcompress), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -FLT_MAX, FLT_MAX, V|E},
{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -1, FLT_MAX, V|E},
{"qmin", "minimum video quantizer scale (VBR)", OFFSET(qmin), AV_OPT_TYPE_INT, {.i64 = 2 }, -1, 69, V|E},
{"qmax", "maximum video quantizer scale (VBR)", OFFSET(qmax), AV_OPT_TYPE_INT, {.i64 = 31 }, -1, 1024, V|E},
{"qdiff", "maximum difference between the quantizer scales (VBR)", OFFSET(max_qdiff), AV_OPT_TYPE_INT, {.i64 = 3 }, INT_MIN, INT_MAX, V|E},
{"bf", "set maximum number of B frames between non-B-frames", OFFSET(max_b_frames), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, -1, INT_MAX, V|E},
{"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},
{"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"b_strategy", "strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, V|E},
{"ps", "RTP payload size in bytes", OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"mv_bits", NULL, OFFSET(mv_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"header_bits", NULL, OFFSET(header_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"i_tex_bits", NULL, OFFSET(i_tex_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"p_tex_bits", NULL, OFFSET(p_tex_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"i_count", NULL, OFFSET(i_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"p_count", NULL, OFFSET(p_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"skip_count", NULL, OFFSET(skip_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"misc_bits", NULL, OFFSET(misc_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"frame_bits", NULL, OFFSET(frame_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"codec_tag", NULL, OFFSET(codec_tag), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"bug", "work around not autodetected encoder bugs", OFFSET(workaround_bugs), AV_OPT_TYPE_FLAGS, {.i64 = FF_BUG_AUTODETECT }, INT_MIN, INT_MAX, V|D, "bug"},
{"autodetect", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_AUTODETECT }, INT_MIN, INT_MAX, V|D, "bug"},
#if FF_API_OLD_MSMPEG4
{"old_msmpeg4", "some old lavc-generated MSMPEG4v3 files (no autodetection)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_OLD_MSMPEG4 }, INT_MIN, INT_MAX, V|D, "bug"},
#endif
{"xvid_ilace", "Xvid interlacing bug (autodetected if FOURCC == XVIX)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_XVID_ILACE }, INT_MIN, INT_MAX, V|D, "bug"},
{"ump4", "(autodetected if FOURCC == UMP4)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_UMP4 }, INT_MIN, INT_MAX, V|D, "bug"},
{"no_padding", "padding bug (autodetected)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_NO_PADDING }, INT_MIN, INT_MAX, V|D, "bug"},
{"amv", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_AMV }, INT_MIN, INT_MAX, V|D, "bug"},
#if FF_API_AC_VLC
{"ac_vlc", "illegal VLC bug (autodetected per FOURCC)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_AC_VLC }, INT_MIN, INT_MAX, V|D, "bug"},
#endif
{"qpel_chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_QPEL_CHROMA }, INT_MIN, INT_MAX, V|D, "bug"},
{"std_qpel", "old standard qpel (autodetected per FOURCC/version)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_STD_QPEL }, INT_MIN, INT_MAX, V|D, "bug"},
{"qpel_chroma2", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_QPEL_CHROMA2 }, INT_MIN, INT_MAX, V|D, "bug"},
{"direct_blocksize", "direct-qpel-blocksize bug (autodetected per FOURCC/version)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_DIRECT_BLOCKSIZE }, INT_MIN, INT_MAX, V|D, "bug"},
{"edge", "edge padding bug (autodetected per FOURCC/version)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_EDGE }, INT_MIN, INT_MAX, V|D, "bug"},
{"hpel_chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_HPEL_CHROMA }, INT_MIN, INT_MAX, V|D, "bug"},
{"dc_clip", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_DC_CLIP }, INT_MIN, INT_MAX, V|D, "bug"},
{"ms", "work around various bugs in Microsoft's broken decoders", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_MS }, INT_MIN, INT_MAX, V|D, "bug"},
{"trunc", "truncated frames", 0, AV_OPT_TYPE_CONST, {.i64 = FF_BUG_TRUNCATED}, INT_MIN, INT_MAX, V|D, "bug"},
{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), AV_OPT_TYPE_INT, {.i64 = 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, AV_OPT_TYPE_CONST, {.i64 = 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 the consequences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_STRICT }, INT_MIN, INT_MAX, V|D|E, "strict"},
{"normal", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_NORMAL }, INT_MIN, INT_MAX, V|D|E, "strict"},
{"unofficial", "allow unofficial extensions", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_UNOFFICIAL }, INT_MIN, INT_MAX, V|D|E, "strict"},
{"experimental", "allow non-standardized experimental things", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_EXPERIMENTAL }, INT_MIN, INT_MAX, V|D|E, "strict"},
{"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},
{"err_detect", "set error detection flags", OFFSET(err_recognition), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
{"crccheck", "verify embedded CRCs", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
{"bitstream", "detect bitstream specification deviations", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BITSTREAM }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
{"buffer", "detect improper bitstream length", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_BUFFER }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
{"explode", "abort decoding on minor error detection", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_EXPLODE }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
{"ignore_err", "ignore errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_IGNORE_ERR }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
{"careful",    "consider things that violate the spec, are fast to check and have not been seen in the wild as errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_CAREFUL }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
{"compliant",  "consider all spec non compliancies as errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_COMPLIANT }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
{"aggressive", "consider things that a sane encoder should not do as an error", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_AGGRESSIVE }, INT_MIN, INT_MAX, A|V|D, "err_detect"},
{"has_b_frames", NULL, OFFSET(has_b_frames), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"block_align", NULL, OFFSET(block_align), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"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},
{"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
{"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"rc_override_count", NULL, OFFSET(rc_override_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"rc_eq", "Set rate control equation. When computing the expression, besides the standard functions "
          "defined in the section 'Expression Evaluation', the following functions are available: "
          "bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv "
          "fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.",
          OFFSET(rc_eq), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, V|E},
{"maxrate", "maximum bitrate (in bits/s). Used for VBV together with bufsize.", OFFSET(rc_max_rate), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|A|E},
{"minrate", "minimum bitrate (in bits/s). Most useful in setting up a CBR encode. It is of little use otherwise.",
            OFFSET(rc_min_rate), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|V|E},
{"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), AV_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), AV_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), AV_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), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
{"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, "dct"},
{"auto", "autoselect a good one (default)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"},
{"fastint", "fast integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"},
#if FF_API_UNUSED_MEMBERS
{"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"},
#endif /* FF_API_UNUSED_MEMBERS */
{"mmx", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, "dct"},
{"altivec", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, "dct"},
{"faan", "floating point AAN DCT", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"},
{"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
{"p_mask", "inter masking", OFFSET(p_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
{"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
{"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, "idct"},
{"auto", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
{"int", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, "idct"},
{"simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, "idct"},
{"simplemmx", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
{"arm", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
{"altivec", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, "idct"},
#if FF_API_ARCH_SH4
{"sh4", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SH4 }, INT_MIN, INT_MAX, V|E|D, "idct"},
#endif
{"simplearm", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
{"simplearmv5te", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, "idct"},
{"simplearmv6", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, "idct"},
{"simpleneon", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, "idct"},
#if FF_API_ARCH_ALPHA
{"simplealpha", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEALPHA }, INT_MIN, INT_MAX, V|E|D, "idct"},
#endif
#if FF_API_UNUSED_MEMBERS
{"ipp", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_IPP }, INT_MIN, INT_MAX, V|E|D, "idct"},
#endif /* FF_API_UNUSED_MEMBERS */
{"xvid", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
{"xvidmmx", "deprecated, for compatibility only", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
{"faani", "floating point AAN IDCT", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"},
{"simpleauto", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEAUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
{"slice_count", NULL, OFFSET(slice_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"ec", "set error concealment strategy", OFFSET(error_concealment), AV_OPT_TYPE_FLAGS, {.i64 = 3 }, INT_MIN, INT_MAX, V|D, "ec"},
{"guess_mvs", "iterative motion vector (MV) search (slow)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_EC_GUESS_MVS }, INT_MIN, INT_MAX, V|D, "ec"},
{"deblock", "use strong deblock filter for damaged MBs", 0, AV_OPT_TYPE_CONST, {.i64 = FF_EC_DEBLOCK }, INT_MIN, INT_MAX, V|D, "ec"},
{"favor_inter", "favor predicting from the previous frame", 0, AV_OPT_TYPE_CONST, {.i64 = FF_EC_FAVOR_INTER }, INT_MIN, INT_MAX, V|D, "ec"},
{"bits_per_coded_sample", NULL, OFFSET(bits_per_coded_sample), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"pred", "prediction method", OFFSET(prediction_method), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "pred"},
{"left", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PRED_LEFT }, INT_MIN, INT_MAX, V|E, "pred"},
{"plane", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PRED_PLANE }, INT_MIN, INT_MAX, V|E, "pred"},
{"median", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PRED_MEDIAN }, INT_MIN, INT_MAX, V|E, "pred"},
{"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10, V|E},
{"debug", "print specific debug info", OFFSET(debug), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, 0, INT_MAX, V|A|S|E|D, "debug"},
{"pict", "picture info", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_PICT_INFO }, INT_MIN, INT_MAX, V|D, "debug"},
{"rc", "rate control", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_RC }, INT_MIN, INT_MAX, V|E, "debug"},
{"bitstream", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_BITSTREAM }, INT_MIN, INT_MAX, V|D, "debug"},
{"mb_type", "macroblock (MB) type", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MB_TYPE }, INT_MIN, INT_MAX, V|D, "debug"},
{"qp", "per-block quantization parameter (QP)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_QP }, INT_MIN, INT_MAX, V|D, "debug"},
#if FF_API_DEBUG_MV
{"mv", "motion vector", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MV }, INT_MIN, INT_MAX, V|D, "debug"},
#endif
{"dct_coeff", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_DCT_COEFF }, INT_MIN, INT_MAX, V|D, "debug"},
{"skip", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_SKIP }, INT_MIN, INT_MAX, V|D, "debug"},
{"startcode", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_STARTCODE }, INT_MIN, INT_MAX, V|D, "debug"},
#if FF_API_UNUSED_MEMBERS
{"pts", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_PTS }, INT_MIN, INT_MAX, V|D, "debug"},
#endif /* FF_API_UNUSED_MEMBERS */
{"er", "error recognition", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_ER }, INT_MIN, INT_MAX, V|D, "debug"},
{"mmco", "memory management control operations (H.264)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MMCO }, INT_MIN, INT_MAX, V|D, "debug"},
{"bugs", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_BUGS }, INT_MIN, INT_MAX, V|D, "debug"},
{"vis_qp", "visualize quantization parameter (QP), lower QP are tinted greener", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_QP }, INT_MIN, INT_MAX, V|D, "debug"},
{"vis_mb_type", "visualize block types", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MB_TYPE }, INT_MIN, INT_MAX, V|D, "debug"},
{"buffers", "picture buffer allocations", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_BUFFERS }, INT_MIN, INT_MAX, V|D, "debug"},
{"thread_ops", "threading operations", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_THREADS }, INT_MIN, INT_MAX, V|A|D, "debug"},
{"nomc", "skip motion compensation", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_NOMC }, INT_MIN, INT_MAX, V|A|D, "debug"},
#if FF_API_VISMV
{"vismv", "visualize motion vectors (MVs) (deprecated)", OFFSET(debug_mv), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT }, 0, INT_MAX, V|D, "debug_mv"},
{"pf", "forward predicted MVs of P-frames", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MV_P_FOR }, INT_MIN, INT_MAX, V|D, "debug_mv"},
{"bf", "forward predicted MVs of B-frames", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MV_B_FOR }, INT_MIN, INT_MAX, V|D, "debug_mv"},
{"bb", "backward predicted MVs of B-frames", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_VIS_MV_B_BACK }, INT_MIN, INT_MAX, V|D, "debug_mv"},
#endif
{"cmp", "full-pel ME compare function", OFFSET(me_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"subcmp", "sub-pel ME compare function", OFFSET(me_sub_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"ildctcmp", "interlaced DCT compare function", OFFSET(ildct_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"last_pred", "amount of motion predictors from the previous frame", OFFSET(last_predictor_count), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"preme", "pre motion estimation", OFFSET(pre_me), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"sad", "sum of absolute differences, fast (default)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"sse", "sum of squared errors", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"satd", "sum of absolute Hadamard transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SATD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"dct", "sum of absolute DCT transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"psnr", "sum of squared quantization errors (avoid, low quality)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_PSNR }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"bit", "number of bits needed for the block", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_BIT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"rd", "rate distortion optimal, slow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_RD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"zero", "0", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_ZERO }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"vsad", "sum of absolute vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"vsse", "sum of squared vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"nsse", "noise preserving sum of squared differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_NSSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
#if CONFIG_SNOW_ENCODER
{"w53", "5/3 wavelet, only used in snow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_W53 }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"w97", "9/7 wavelet, only used in snow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_W97 }, INT_MIN, INT_MAX, V|E, "cmp_func"},
#endif
{"dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 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), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"subq", "sub-pel motion estimation quality", OFFSET(me_subpel_quality), AV_OPT_TYPE_INT, {.i64 = 8 }, INT_MIN, INT_MAX, V|E},
{"dtg_active_format", NULL, OFFSET(dtg_active_format), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"ibias", "intra quant bias", OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, V|E},
{"pbias", "inter quant bias", OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, V|E},
{"global_quality", NULL, OFFSET(global_quality), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
{"coder", NULL, OFFSET(coder_type), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "coder"},
{"vlc", "variable length coder / Huffman coder", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_VLC }, INT_MIN, INT_MAX, V|E, "coder"},
{"ac", "arithmetic coder", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_AC }, INT_MIN, INT_MAX, V|E, "coder"},
{"raw", "raw (no encoding)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_RAW }, INT_MIN, INT_MAX, V|E, "coder"},
{"rle", "run-length coder", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_RLE }, INT_MIN, INT_MAX, V|E, "coder"},
#if FF_API_UNUSED_MEMBERS
{"deflate", "deflate-based coder", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_DEFLATE }, INT_MIN, INT_MAX, V|E, "coder"},
#endif /* FF_API_UNUSED_MEMBERS */
{"context", "context model", OFFSET(context_model), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"slice_flags", NULL, OFFSET(slice_flags), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
#if FF_API_XVMC
{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
#endif /* FF_API_XVMC */
{"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, 2, V|E, "mbd"},
{"simple", "use mbcmp (default)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MB_DECISION_SIMPLE }, INT_MIN, INT_MAX, V|E, "mbd"},
{"bits", "use fewest bits", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MB_DECISION_BITS }, INT_MIN, INT_MAX, V|E, "mbd"},
{"rd", "use best rate distortion", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MB_DECISION_RD }, INT_MIN, INT_MAX, V|E, "mbd"},
{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"lmin", "minimum Lagrange factor (VBR)", OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 =  2*FF_QP2LAMBDA }, 0, INT_MAX, V|E},
{"lmax", "maximum Lagrange factor (VBR)", OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 = 31*FF_QP2LAMBDA }, 0, INT_MAX, V|E},
{"nr", "noise reduction", OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = 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), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"flags2", NULL, OFFSET(flags2), AV_OPT_TYPE_FLAGS, {.i64 = DEFAULT}, 0, UINT_MAX, V|A|E|D, "flags2"},
#if FF_API_ERROR_RATE
{"error", NULL, OFFSET(error_rate), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
#endif
{"threads", NULL, OFFSET(thread_count), AV_OPT_TYPE_INT, {.i64 = 1 }, 0, INT_MAX, V|A|E|D, "threads"},
{"auto", "autodetect a suitable number of threads to use", 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, INT_MIN, INT_MAX, V|E|D, "threads"},
{"me_threshold", "motion estimation threshold", OFFSET(me_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), AV_OPT_TYPE_INT, {.i64 = 0 }, -8, 16, V|E},
{"nssew", "nsse weight", OFFSET(nsse_weight), AV_OPT_TYPE_INT, {.i64 = 8 }, INT_MIN, INT_MAX, V|E},
{"skip_top", "number of macroblock rows at the top which are skipped", OFFSET(skip_top), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|D},
{"skip_bottom", "number of macroblock rows at the bottom which are skipped", OFFSET(skip_bottom), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|D},
{"profile", NULL, OFFSET(profile), AV_OPT_TYPE_INT, {.i64 = FF_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "profile"},
{"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "profile"},
{"aac_main", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_MAIN }, INT_MIN, INT_MAX, A|E, "profile"},
{"aac_low", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_LOW }, INT_MIN, INT_MAX, A|E, "profile"},
{"aac_ssr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_SSR }, INT_MIN, INT_MAX, A|E, "profile"},
{"aac_ltp", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_LTP }, INT_MIN, INT_MAX, A|E, "profile"},
{"aac_he", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_HE }, INT_MIN, INT_MAX, A|E, "profile"},
{"aac_he_v2", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_HE_V2 }, INT_MIN, INT_MAX, A|E, "profile"},
{"aac_ld", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_LD }, INT_MIN, INT_MAX, A|E, "profile"},
{"aac_eld", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_AAC_ELD }, INT_MIN, INT_MAX, A|E, "profile"},
{"mpeg2_aac_low", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_MPEG2_AAC_LOW }, INT_MIN, INT_MAX, A|E, "profile"},
{"mpeg2_aac_he", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_MPEG2_AAC_HE }, INT_MIN, INT_MAX, A|E, "profile"},
{"dts", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_DTS }, INT_MIN, INT_MAX, A|E, "profile"},
{"dts_es", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_DTS_ES }, INT_MIN, INT_MAX, A|E, "profile"},
{"dts_96_24", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_DTS_96_24 }, INT_MIN, INT_MAX, A|E, "profile"},
{"dts_hd_hra", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_DTS_HD_HRA }, INT_MIN, INT_MAX, A|E, "profile"},
{"dts_hd_ma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_PROFILE_DTS_HD_MA }, INT_MIN, INT_MAX, A|E, "profile"},
{"level", NULL, OFFSET(level), AV_OPT_TYPE_INT, {.i64 = FF_LEVEL_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "level"},
{"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 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), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, V|A|D},
{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"border_mask", "increase the quantizer for macroblocks close to borders", OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
{"mblmin", "minimum macroblock Lagrange factor (VBR)", OFFSET(mb_lmin), AV_OPT_TYPE_INT, {.i64 = FF_QP2LAMBDA * 2 }, 1, FF_LAMBDA_MAX, V|E},
{"mblmax", "maximum macroblock Lagrange factor (VBR)", OFFSET(mb_lmax), AV_OPT_TYPE_INT, {.i64 = FF_QP2LAMBDA * 31 }, 1, FF_LAMBDA_MAX, V|E},
{"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {.i64 = 256 }, INT_MIN, INT_MAX, V|E},
{"skip_loop_filter", "skip loop filtering process for the selected frames", OFFSET(skip_loop_filter), AV_OPT_TYPE_INT, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
{"skip_idct"       , "skip IDCT/dequantization for the selected frames",    OFFSET(skip_idct),        AV_OPT_TYPE_INT, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
{"skip_frame"      , "skip decoding for the selected frames",               OFFSET(skip_frame),       AV_OPT_TYPE_INT, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
{"none"            , "discard no frame",                    0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONE    }, INT_MIN, INT_MAX, V|D, "avdiscard"},
{"default"         , "discard useless frames",              0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
{"noref"           , "discard all non-reference frames",    0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONREF  }, INT_MIN, INT_MAX, V|D, "avdiscard"},
{"bidir"           , "discard all bidirectional frames",    0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_BIDIR   }, INT_MIN, INT_MAX, V|D, "avdiscard"},
{"nokey"           , "discard all frames except keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONKEY  }, INT_MIN, INT_MAX, V|D, "avdiscard"},
{"nointra"         , "discard all frames except I frames",  0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONINTRA}, INT_MIN, INT_MAX, V|D, "avdiscard"},
{"all"             , "discard all frames",                  0, AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_ALL     }, INT_MIN, INT_MAX, V|D, "avdiscard"},
{"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), AV_OPT_TYPE_INT, {.i64 = 1 }, 0, 4, V|E},
{"brd_scale", "downscale frames for dynamic B-frame decision", OFFSET(brd_scale), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, 10, V|E},
{"keyint_min", "minimum interval between IDR-frames", OFFSET(keyint_min), AV_OPT_TYPE_INT, {.i64 = 25 }, INT_MIN, INT_MAX, V|E},
{"refs", "reference frames to consider for motion compensation", OFFSET(refs), AV_OPT_TYPE_INT, {.i64 = 1 }, INT_MIN, INT_MAX, V|E},
{"chromaoffset", "chroma QP offset from luma", OFFSET(chromaoffset), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"trellis", "rate-distortion optimal quantization", OFFSET(trellis), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
#if FF_API_UNUSED_MEMBERS
{"sc_factor", "multiplied by qscale for each frame and added to scene_change_score", OFFSET(scenechange_factor), AV_OPT_TYPE_INT, {.i64 = 6 }, 0, INT_MAX, V|E},
#endif /* FF_API_UNUSED_MEMBERS */
{"mv0_threshold", NULL, OFFSET(mv0_threshold), AV_OPT_TYPE_INT, {.i64 = 256 }, 0, INT_MAX, V|E},
{"b_sensitivity", "adjust sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), AV_OPT_TYPE_INT, {.i64 = 40 }, 1, INT_MAX, V|E},
{"compression_level", NULL, OFFSET(compression_level), AV_OPT_TYPE_INT, {.i64 = FF_COMPRESSION_DEFAULT }, INT_MIN, INT_MAX, V|A|E},
{"min_prediction_order", NULL, OFFSET(min_prediction_order), AV_OPT_TYPE_INT, {.i64 = -1 }, INT_MIN, INT_MAX, A|E},
{"max_prediction_order", NULL, OFFSET(max_prediction_order), AV_OPT_TYPE_INT, {.i64 = -1 }, INT_MIN, INT_MAX, A|E},
{"timecode_frame_start", "GOP timecode frame start number, in non-drop-frame format", OFFSET(timecode_frame_start), AV_OPT_TYPE_INT64, {.i64 = 0 }, 0, INT64_MAX, V|E},
#if FF_API_REQUEST_CHANNELS
{"request_channels", "set desired number of audio channels", OFFSET(request_channels), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, A|D},
#endif
{"bits_per_raw_sample", NULL, OFFSET(bits_per_raw_sample), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
{"channel_layout", NULL, OFFSET(channel_layout), AV_OPT_TYPE_INT64, {.i64 = DEFAULT }, 0, INT64_MAX, A|E|D, "channel_layout"},
{"request_channel_layout", NULL, OFFSET(request_channel_layout), AV_OPT_TYPE_INT64, {.i64 = DEFAULT }, 0, INT64_MAX, A|D, "request_channel_layout"},
{"rc_max_vbv_use", NULL, OFFSET(rc_max_available_vbv_use), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0.0, FLT_MAX, V|E},
{"rc_min_vbv_use", NULL, OFFSET(rc_min_vbv_overflow_use),  AV_OPT_TYPE_FLOAT, {.dbl = 3 },     0.0, FLT_MAX, V|E},
{"ticks_per_frame", NULL, OFFSET(ticks_per_frame), AV_OPT_TYPE_INT, {.i64 = 1 }, 1, INT_MAX, A|V|E|D},
{"color_primaries", "color primaries", OFFSET(color_primaries), AV_OPT_TYPE_INT, {.i64 = AVCOL_PRI_UNSPECIFIED }, 1, AVCOL_PRI_NB-1, V|E|D, "color_primaries_type"},
{"bt709",       "BT.709",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT709 },       INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
{"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
{"bt470m",      "BT.470 M",    0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT470M },      INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
{"bt470bg",     "BT.470 BG",   0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT470BG },     INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
{"smpte170m",   "SMPTE 170 M", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE170M },   INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
{"smpte240m",   "SMPTE 240 M", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_SMPTE240M },   INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
{"film",        "Film",        0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_FILM },        INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
{"bt2020",      "BT.2020",     0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT2020 },      INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
{"color_trc", "color transfert characteristic", OFFSET(color_trc), AV_OPT_TYPE_INT, {.i64 = AVCOL_TRC_UNSPECIFIED }, 1, AVCOL_TRC_NB-1, V|E|D, "color_trc_type"},
{"bt709",        "BT.709",           0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT709 },        INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"unspecified",  "Unspecified",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_UNSPECIFIED },  INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"gamma22",      "Gamma 2.2",        0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_GAMMA22 },      INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"gamma28",      "Gamma 2.8",        0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_GAMMA28 },      INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"smpte170m",    "SMPTE 170 M",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE170M },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"smpte240m",    "SMPTE 240 M",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_SMPTE240M },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"linear",       "Linear",           0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LINEAR },       INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"log",          "SMPTE 240 M",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG },          INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"log_sqrt",     "SMPTE 240 M",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_LOG_SQRT },     INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"iec61966_2_4", "SMPTE 240 M",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_4 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"bt1361",       "BT.1361",          0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT1361_ECG },   INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"iec61966_2_1", "SMPTE 240 M",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_IEC61966_2_1 }, INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"bt2020_10bit", "BT.2020 - 10 bit", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_10 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"bt2020_12bit", "BT.2020 - 12 bit", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_TRC_BT2020_12 },    INT_MIN, INT_MAX, V|E|D, "color_trc_type"},
{"colorspace", "colorspace", OFFSET(colorspace), AV_OPT_TYPE_INT, {.i64 = AVCOL_SPC_UNSPECIFIED }, 1, AVCOL_SPC_NB-1, V|E|D, "colorspace_type"},
{"rgb",         "RGB",         0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_RGB },         INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
{"bt709",       "BT.709",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT709 },       INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
{"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
{"fcc",         "FourCC",      0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_FCC },         INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
{"bt470bg",     "BT.470 BG",   0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT470BG },     INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
{"smpte170m",   "SMPTE 170 M", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_SMPTE170M },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
{"smpte240m",   "SMPTE 240 M", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_SMPTE240M },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
{"ycocg",       "YCOCG",       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_YCOCG },       INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
{"bt2020_ncl",  "BT.2020 NCL", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_NCL },  INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
{"bt2020_cl",   "BT.2020 CL",  0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_SPC_BT2020_CL },   INT_MIN, INT_MAX, V|E|D, "colorspace_type"},
{"color_range", "color range", OFFSET(color_range), AV_OPT_TYPE_INT, {.i64 = AVCOL_RANGE_UNSPECIFIED }, 0, AVCOL_RANGE_NB-1, V|E|D, "color_range_type"},
{"unspecified", "Unspecified", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_UNSPECIFIED }, INT_MIN, INT_MAX, V|E|D, "color_range_type"},
{"mpeg", "MPEG (219*2^(n-8))", 0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_MPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
{"jpeg", "JPEG (2^n-1)",       0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_RANGE_JPEG },        INT_MIN, INT_MAX, V|E|D, "color_range_type"},
{"chroma_sample_location", NULL, OFFSET(chroma_sample_location), AV_OPT_TYPE_INT, {.i64 = AVCHROMA_LOC_UNSPECIFIED }, 0, AVCHROMA_LOC_NB-1, V|E|D},
{"log_level_offset", "set the log level offset", OFFSET(log_level_offset), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX },
{"slices", "number of slices, used in parallelized encoding", OFFSET(slices), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, V|E},
{"thread_type", "select multithreading type", OFFSET(thread_type), AV_OPT_TYPE_FLAGS, {.i64 = FF_THREAD_SLICE|FF_THREAD_FRAME }, 0, INT_MAX, V|A|E|D, "thread_type"},
{"slice", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_THREAD_SLICE }, INT_MIN, INT_MAX, V|E|D, "thread_type"},
{"frame", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_THREAD_FRAME }, INT_MIN, INT_MAX, V|E|D, "thread_type"},
{"audio_service_type", "audio service type", OFFSET(audio_service_type), AV_OPT_TYPE_INT, {.i64 = AV_AUDIO_SERVICE_TYPE_MAIN }, 0, AV_AUDIO_SERVICE_TYPE_NB-1, A|E, "audio_service_type"},
{"ma", "Main Audio Service", 0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_MAIN },              INT_MIN, INT_MAX, A|E, "audio_service_type"},
{"ef", "Effects",            0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_EFFECTS },           INT_MIN, INT_MAX, A|E, "audio_service_type"},
{"vi", "Visually Impaired",  0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED }, INT_MIN, INT_MAX, A|E, "audio_service_type"},
{"hi", "Hearing Impaired",   0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED },  INT_MIN, INT_MAX, A|E, "audio_service_type"},
{"di", "Dialogue",           0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_DIALOGUE },          INT_MIN, INT_MAX, A|E, "audio_service_type"},
{"co", "Commentary",         0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_COMMENTARY },        INT_MIN, INT_MAX, A|E, "audio_service_type"},
{"em", "Emergency",          0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_EMERGENCY },         INT_MIN, INT_MAX, A|E, "audio_service_type"},
{"vo", "Voice Over",         0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_VOICE_OVER },        INT_MIN, INT_MAX, A|E, "audio_service_type"},
{"ka", "Karaoke",            0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_KARAOKE },           INT_MIN, INT_MAX, A|E, "audio_service_type"},
{"request_sample_fmt", "sample format audio decoders should prefer", OFFSET(request_sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64=AV_SAMPLE_FMT_NONE}, -1, INT_MAX, A|D, "request_sample_fmt"},
{"pkt_timebase", NULL, OFFSET(pkt_timebase), AV_OPT_TYPE_RATIONAL, {.dbl = 0 }, 0, INT_MAX, 0},
{"sub_charenc", "set input text subtitles character encoding", OFFSET(sub_charenc), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, S|D},
{"sub_charenc_mode", "set input text subtitles character encoding mode", OFFSET(sub_charenc_mode), AV_OPT_TYPE_FLAGS, {.i64 = FF_SUB_CHARENC_MODE_AUTOMATIC}, -1, INT_MAX, S|D, "sub_charenc_mode"},
{"do_nothing",  NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_CHARENC_MODE_DO_NOTHING},  INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
{"auto",        NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_CHARENC_MODE_AUTOMATIC},   INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
{"pre_decoder", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_CHARENC_MODE_PRE_DECODER}, INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
{"refcounted_frames", NULL, OFFSET(refcounted_frames), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, A|V|D },
{"side_data_only_packets", NULL, OFFSET(side_data_only_packets), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, A|V|E },
{"skip_alpha", "Skip processing alpha", OFFSET(skip_alpha), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, V|D },
{"field_order", "Field order", OFFSET(field_order), AV_OPT_TYPE_INT, {.i64 = AV_FIELD_UNKNOWN }, 0, 5, V|D|E, "field_order" },
{"progressive", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_PROGRESSIVE }, 0, 0, V|D|E, "field_order" },
{"tt", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_TT }, 0, 0, V|D|E, "field_order" },
{"bb", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_BB }, 0, 0, V|D|E, "field_order" },
{"tb", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_TB }, 0, 0, V|D|E, "field_order" },
{"bt", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_BT }, 0, 0, V|D|E, "field_order" },
#endif
{NULL},
};

#undef A
#undef V
#undef S
#undef E
#undef D
#undef DEFAULT
#undef OFFSET

#endif /* AVCODEC_OPTIONS_TABLE_H */
