FFmpeg: libavcodec/options.c Source File

00001 /*
00002  * Copyright (c) 2001 Fabrice Bellard
00003  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
00004  *
00005  * This file is part of FFmpeg.
00006  *
00007  * FFmpeg is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  *
00012  * FFmpeg is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with FFmpeg; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00020  */
00021 
00027 #include "avcodec.h"
00028 #include "internal.h"
00029 #include "libavutil/avassert.h"
00030 #include "libavutil/opt.h"
00031 #include <float.h>              /* FLT_MIN, FLT_MAX */
00032 
00033 static const char* context_to_name(void* ptr) {
00034     AVCodecContext *avc= ptr;
00035 
00036     if(avc && avc->codec && avc->codec->name)
00037         return avc->codec->name;
00038     else
00039         return "NULL";
00040 }
00041 
00042 static void *codec_child_next(void *obj, void *prev)
00043 {
00044     AVCodecContext *s = obj;
00045     if (!prev && s->codec && s->codec->priv_class && s->priv_data)
00046         return s->priv_data;
00047     return NULL;
00048 }
00049 
00050 static const AVClass *codec_child_class_next(const AVClass *prev)
00051 {
00052     AVCodec *c = NULL;
00053 
00054     /* find the codec that corresponds to prev */
00055     while (prev && (c = av_codec_next(c)))
00056         if (c->priv_class == prev)
00057             break;
00058 
00059     /* find next codec with priv options */
00060     while (c = av_codec_next(c))
00061         if (c->priv_class)
00062             return c->priv_class;
00063     return NULL;
00064 }
00065 
00066 #define OFFSET(x) offsetof(AVCodecContext,x)
00067 #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
00068 //these names are too long to be readable
00069 #define V AV_OPT_FLAG_VIDEO_PARAM
00070 #define A AV_OPT_FLAG_AUDIO_PARAM
00071 #define S AV_OPT_FLAG_SUBTITLE_PARAM
00072 #define E AV_OPT_FLAG_ENCODING_PARAM
00073 #define D AV_OPT_FLAG_DECODING_PARAM
00074 
00075 #define AV_CODEC_DEFAULT_BITRATE 200*1000
00076 
00077 static const AVOption options[]={
00078 {"b", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT, {.dbl = AV_CODEC_DEFAULT_BITRATE }, INT_MIN, INT_MAX, A|V|E},
00079 {"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), AV_OPT_TYPE_INT, {.dbl = 128*1000 }, INT_MIN, INT_MAX, A|E},
00080 {"bt", "set video bitrate tolerance (in bits/s)", OFFSET(bit_rate_tolerance), AV_OPT_TYPE_INT, {.dbl = AV_CODEC_DEFAULT_BITRATE*20 }, 1, INT_MAX, V|E},
00081 {"flags", NULL, OFFSET(flags), AV_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, 0, UINT_MAX, V|A|E|D, "flags"},
00082 {"mv4", "use four motion vector by macroblock (mpeg4)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_4MV }, INT_MIN, INT_MAX, V|E, "flags"},
00083 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
00084 {"obmc", "use overlapped block motion compensation (h263+)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_OBMC }, INT_MIN, INT_MAX, V|E, "flags"},
00085 #endif
00086 {"qpel", "use 1/4 pel motion compensation", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_QPEL }, INT_MIN, INT_MAX, V|E, "flags"},
00087 {"loop", "use loop filter", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_LOOP_FILTER }, INT_MIN, INT_MAX, V|E, "flags"},
00088 {"qscale", "use fixed qscale", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_QSCALE }, INT_MIN, INT_MAX, 0, "flags"},
00089 {"gmc", "use gmc", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_GMC }, INT_MIN, INT_MAX, V|E, "flags"},
00090 {"mv0", "always try a mb with mv=<0,0>", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_MV0 }, INT_MIN, INT_MAX, V|E, "flags"},
00091 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
00092 {"part", "use data partitioning", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_PART }, INT_MIN, INT_MAX, V|E, "flags"},
00093 #endif
00094 {"input_preserved", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_INPUT_PRESERVED }, INT_MIN, INT_MAX, 0, "flags"},
00095 {"pass1", "use internal 2pass ratecontrol in first  pass mode", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_PASS1 }, INT_MIN, INT_MAX, 0, "flags"},
00096 {"pass2", "use internal 2pass ratecontrol in second pass mode", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_PASS2 }, INT_MIN, INT_MAX, 0, "flags"},
00097 #if FF_API_MJPEG_GLOBAL_OPTS
00098 {"extern_huff", "use external huffman table (for mjpeg)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_EXTERN_HUFF }, INT_MIN, INT_MAX, 0, "flags"},
00099 #endif
00100 {"gray", "only decode/encode grayscale", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_GRAY }, INT_MIN, INT_MAX, V|E|D, "flags"},
00101 {"emu_edge", "don't draw edges", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_EMU_EDGE }, INT_MIN, INT_MAX, 0, "flags"},
00102 {"psnr", "error[?] variables will be set during encoding", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_PSNR }, INT_MIN, INT_MAX, V|E, "flags"},
00103 {"truncated", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_TRUNCATED }, INT_MIN, INT_MAX, 0, "flags"},
00104 {"naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_NORMALIZE_AQP }, INT_MIN, INT_MAX, V|E, "flags"},
00105 {"ildct", "use interlaced dct", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_INTERLACED_DCT }, INT_MIN, INT_MAX, V|E, "flags"},
00106 {"low_delay", "force low delay", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_LOW_DELAY }, INT_MIN, INT_MAX, V|D|E, "flags"},
00107 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
00108 {"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_ALT_SCAN }, INT_MIN, INT_MAX, V|E, "flags"},
00109 #endif
00110 {"global_header", "place global headers in extradata instead of every keyframe", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_GLOBAL_HEADER }, INT_MIN, INT_MAX, V|A|E, "flags"},
00111 {"bitexact", "use only bitexact stuff (except (i)dct)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_BITEXACT }, INT_MIN, INT_MAX, A|V|S|D|E, "flags"},
00112 {"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_AC_PRED }, INT_MIN, INT_MAX, V|E, "flags"},
00113 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
00114 {"umv", "use unlimited motion vectors", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_H263P_UMV }, INT_MIN, INT_MAX, V|E, "flags"},
00115 #endif
00116 {"cbp", "use rate distortion optimization for cbp", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_CBP_RD }, INT_MIN, INT_MAX, V|E, "flags"},
00117 {"qprd", "use rate distortion optimization for qp selection", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_QP_RD }, INT_MIN, INT_MAX, V|E, "flags"},
00118 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
00119 {"aiv", "h263 alternative inter vlc", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_H263P_AIV }, INT_MIN, INT_MAX, V|E, "flags"},
00120 {"slice", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_H263P_SLICE_STRUCT }, INT_MIN, INT_MAX, V|E, "flags"},
00121 #endif
00122 {"ilme", "interlaced motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_INTERLACED_ME }, INT_MIN, INT_MAX, V|E, "flags"},
00123 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
00124 {"scan_offset", "will reserve space for svcd scan offset user data", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_SVCD_SCAN_OFFSET }, INT_MIN, INT_MAX, V|E, "flags"},
00125 #endif
00126 {"cgop", "closed gop", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_CLOSED_GOP }, INT_MIN, INT_MAX, V|E, "flags"},
00127 {"fast", "allow non spec compliant speedup tricks", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_FAST }, INT_MIN, INT_MAX, V|E, "flags2"},
00128 {"sgop", "strictly enforce gop size", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_STRICT_GOP }, INT_MIN, INT_MAX, V|E, "flags2"},
00129 {"noout", "skip bitstream encoding", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_NO_OUTPUT }, INT_MIN, INT_MAX, V|E, "flags2"},
00130 {"local_header", "place global headers at every keyframe instead of in extradata", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_LOCAL_HEADER }, INT_MIN, INT_MAX, V|E, "flags2"},
00131 {"showall", "Show all frames before the first keyframe", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_SHOW_ALL }, INT_MIN, INT_MAX, V|D, "flags2"},
00132 {"sub_id", NULL, OFFSET(sub_id), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00133 {"me_method", "set motion estimation method", OFFSET(me_method), AV_OPT_TYPE_INT, {.dbl = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method"},
00134 {"zero", "zero motion estimation (fastest)", 0, AV_OPT_TYPE_CONST, {.dbl = ME_ZERO }, INT_MIN, INT_MAX, V|E, "me_method" },
00135 {"full", "full motion estimation (slowest)", 0, AV_OPT_TYPE_CONST, {.dbl = ME_FULL }, INT_MIN, INT_MAX, V|E, "me_method" },
00136 {"epzs", "EPZS motion estimation (default)", 0, AV_OPT_TYPE_CONST, {.dbl = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method" },
00137 {"esa", "esa motion estimation (alias for full)", 0, AV_OPT_TYPE_CONST, {.dbl = ME_FULL }, INT_MIN, INT_MAX, V|E, "me_method" },
00138 {"tesa", "tesa motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_TESA }, INT_MIN, INT_MAX, V|E, "me_method" },
00139 {"dia", "dia motion estimation (alias for epzs)", 0, AV_OPT_TYPE_CONST, {.dbl = ME_EPZS }, INT_MIN, INT_MAX, V|E, "me_method" },
00140 {"log", "log motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_LOG }, INT_MIN, INT_MAX, V|E, "me_method" },
00141 {"phods", "phods motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_PHODS }, INT_MIN, INT_MAX, V|E, "me_method" },
00142 {"x1", "X1 motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_X1 }, INT_MIN, INT_MAX, V|E, "me_method" },
00143 {"hex", "hex motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_HEX }, INT_MIN, INT_MAX, V|E, "me_method" },
00144 {"umh", "umh motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_UMH }, INT_MIN, INT_MAX, V|E, "me_method" },
00145 {"iter", "iter motion estimation", 0, AV_OPT_TYPE_CONST, {.dbl = ME_ITER }, INT_MIN, INT_MAX, V|E, "me_method" },
00146 {"extradata_size", NULL, OFFSET(extradata_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00147 {"time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, INT_MIN, INT_MAX},
00148 {"g", "set the group of picture size", OFFSET(gop_size), AV_OPT_TYPE_INT, {.dbl = 12 }, INT_MIN, INT_MAX, V|E},
00149 {"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|D|E},
00150 {"ac", "set number of audio channels", OFFSET(channels), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|D|E},
00151 {"cutoff", "set cutoff bandwidth", OFFSET(cutoff), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|E},
00152 {"frame_size", NULL, OFFSET(frame_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|E},
00153 {"frame_number", NULL, OFFSET(frame_number), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00154 {"delay", NULL, OFFSET(delay), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00155 {"qcomp", "video quantizer scale compression (VBR)", OFFSET(qcompress), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -FLT_MAX, FLT_MAX, V|E},
00156 {"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), AV_OPT_TYPE_FLOAT, {.dbl = 0.5 }, -1, FLT_MAX, V|E},
00157 {"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), AV_OPT_TYPE_INT, {.dbl = 2 }, -1, 69, V|E},
00158 {"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), AV_OPT_TYPE_INT, {.dbl = 31 }, -1, 69, V|E},
00159 {"qdiff", "max difference between the quantizer scale (VBR)", OFFSET(max_qdiff), AV_OPT_TYPE_INT, {.dbl = 3 }, INT_MIN, INT_MAX, V|E},
00160 {"bf", "use 'frames' B frames", OFFSET(max_b_frames), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, -1, FF_MAX_B_FRAMES, V|E},
00161 {"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},
00162 {"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00163 {"b_strategy", "strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.dbl = 0 }, INT_MIN, INT_MAX, V|E},
00164 #if FF_API_X264_GLOBAL_OPTS
00165 {"wpredp", "weighted prediction analysis method", OFFSET(weighted_p_pred), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, V|E},
00166 #endif
00167 {"ps", "rtp payload size in bytes", OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00168 {"mv_bits", NULL, OFFSET(mv_bits), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00169 {"header_bits", NULL, OFFSET(header_bits), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00170 {"i_tex_bits", NULL, OFFSET(i_tex_bits), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00171 {"p_tex_bits", NULL, OFFSET(p_tex_bits), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00172 {"i_count", NULL, OFFSET(i_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00173 {"p_count", NULL, OFFSET(p_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00174 {"skip_count", NULL, OFFSET(skip_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00175 {"misc_bits", NULL, OFFSET(misc_bits), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00176 {"frame_bits", NULL, OFFSET(frame_bits), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00177 {"codec_tag", NULL, OFFSET(codec_tag), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00178 {"bug", "workaround not auto detected encoder bugs", OFFSET(workaround_bugs), AV_OPT_TYPE_FLAGS, {.dbl = FF_BUG_AUTODETECT }, INT_MIN, INT_MAX, V|D, "bug"},
00179 {"autodetect", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_AUTODETECT }, INT_MIN, INT_MAX, V|D, "bug"},
00180 {"old_msmpeg4", "some old lavc generated msmpeg4v3 files (no autodetection)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_OLD_MSMPEG4 }, INT_MIN, INT_MAX, V|D, "bug"},
00181 {"xvid_ilace", "Xvid interlacing bug (autodetected if fourcc==XVIX)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_XVID_ILACE }, INT_MIN, INT_MAX, V|D, "bug"},
00182 {"ump4", "(autodetected if fourcc==UMP4)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_UMP4 }, INT_MIN, INT_MAX, V|D, "bug"},
00183 {"no_padding", "padding bug (autodetected)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_NO_PADDING }, INT_MIN, INT_MAX, V|D, "bug"},
00184 {"amv", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_AMV }, INT_MIN, INT_MAX, V|D, "bug"},
00185 {"ac_vlc", "illegal vlc bug (autodetected per fourcc)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_AC_VLC }, INT_MIN, INT_MAX, V|D, "bug"},
00186 {"qpel_chroma", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_QPEL_CHROMA }, INT_MIN, INT_MAX, V|D, "bug"},
00187 {"std_qpel", "old standard qpel (autodetected per fourcc/version)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_STD_QPEL }, INT_MIN, INT_MAX, V|D, "bug"},
00188 {"qpel_chroma2", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_QPEL_CHROMA2 }, INT_MIN, INT_MAX, V|D, "bug"},
00189 {"direct_blocksize", "direct-qpel-blocksize bug (autodetected per fourcc/version)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_DIRECT_BLOCKSIZE }, INT_MIN, INT_MAX, V|D, "bug"},
00190 {"edge", "edge padding bug (autodetected per fourcc/version)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_EDGE }, INT_MIN, INT_MAX, V|D, "bug"},
00191 {"hpel_chroma", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_HPEL_CHROMA }, INT_MIN, INT_MAX, V|D, "bug"},
00192 {"dc_clip", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_DC_CLIP }, INT_MIN, INT_MAX, V|D, "bug"},
00193 {"ms", "workaround various bugs in microsofts broken decoders", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_MS }, INT_MIN, INT_MAX, V|D, "bug"},
00194 {"trunc", "trancated frames", 0, AV_OPT_TYPE_CONST, {.dbl = FF_BUG_TRUNCATED}, INT_MIN, INT_MAX, V|D, "bug"},
00195 {"lelim", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)", OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00196 {"celim", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)", OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00197 {"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|V|D|E, "strict"},
00198 {"very", "strictly conform to a older more strict version of the spec or reference software", 0, AV_OPT_TYPE_CONST, {.dbl = FF_COMPLIANCE_VERY_STRICT }, INT_MIN, INT_MAX, V|D|E, "strict"},
00199 {"strict", "strictly conform to all the things in the spec no matter what consequences", 0, AV_OPT_TYPE_CONST, {.dbl = FF_COMPLIANCE_STRICT }, INT_MIN, INT_MAX, V|D|E, "strict"},
00200 {"normal", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_COMPLIANCE_NORMAL }, INT_MIN, INT_MAX, V|D|E, "strict"},
00201 {"unofficial", "allow unofficial extensions", 0, AV_OPT_TYPE_CONST, {.dbl = FF_COMPLIANCE_UNOFFICIAL }, INT_MIN, INT_MAX, V|D|E, "strict"},
00202 {"experimental", "allow non standardized experimental things", 0, AV_OPT_TYPE_CONST, {.dbl = FF_COMPLIANCE_EXPERIMENTAL }, INT_MIN, INT_MAX, V|D|E, "strict"},
00203 {"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},
00204 #if FF_API_ER
00205 {"er", "set error detection aggressivity", OFFSET(error_recognition), AV_OPT_TYPE_INT, {.dbl = FF_ER_CAREFUL }, INT_MIN, INT_MAX, A|V|D, "er"},
00206 {"careful", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_ER_CAREFUL }, INT_MIN, INT_MAX, V|D, "er"},
00207 {"compliant", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_ER_COMPLIANT }, INT_MIN, INT_MAX, V|D, "er"},
00208 {"aggressive", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_ER_AGGRESSIVE }, INT_MIN, INT_MAX, V|D, "er"},
00209 {"very_aggressive", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_ER_VERY_AGGRESSIVE }, INT_MIN, INT_MAX, V|D, "er"},
00210 {"explode", "abort decoding on error recognition", 0, AV_OPT_TYPE_CONST, {.dbl = FF_ER_EXPLODE }, INT_MIN, INT_MAX, V|D, "er"},
00211 #endif /* FF_API_ER */
00212 {"err_filter", "set error detection filter flags", OFFSET(err_recognition), AV_OPT_TYPE_FLAGS, {.dbl = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, A|V|D, "err_filter"},
00213 {"crccheck", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AV_EF_CRCCHECK }, INT_MIN, INT_MAX, V|D, "err_filter"},
00214 {"bitstream", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AV_EF_BITSTREAM }, INT_MIN, INT_MAX, V|D, "err_filter"},
00215 {"buffer", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AV_EF_BUFFER }, INT_MIN, INT_MAX, V|D, "err_filter"},
00216 {"explode", "abort decoding on minor error recognition", 0, AV_OPT_TYPE_CONST, {.dbl = AV_EF_EXPLODE }, INT_MIN, INT_MAX, V|D, "err_filter"},
00217 {"has_b_frames", NULL, OFFSET(has_b_frames), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00218 {"block_align", NULL, OFFSET(block_align), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00219 {"parse_only", NULL, OFFSET(parse_only), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00220 {"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00221 {"stats_out", NULL, OFFSET(stats_out), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX},
00222 {"stats_in", NULL, OFFSET(stats_in), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX},
00223 {"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},
00224 {"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
00225 {"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00226 {"rc_override_count", NULL, OFFSET(rc_override_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00227 {"rc_eq", "set rate control equation", OFFSET(rc_eq), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, V|E},
00228 {"maxrate", "set max video bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00229 {"minrate", "set min video bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00230 {"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|V|E},
00231 {"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, V|E},
00232 {"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},
00233 {"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},
00234 {"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},
00235 {"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, V|E, "dct"},
00236 {"auto", "autoselect a good one (default)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"},
00237 {"fastint", "fast integer", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"},
00238 {"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"},
00239 {"mmx", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, "dct"},
00240 {"mlib", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_MLIB }, INT_MIN, INT_MAX, V|E, "dct"},
00241 {"altivec", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, "dct"},
00242 {"faan", "floating point AAN DCT", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"},
00243 {"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
00244 {"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
00245 {"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
00246 {"p_mask", "inter masking", OFFSET(p_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
00247 {"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E},
00248 {"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, V|E|D, "idct"},
00249 {"auto", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
00250 {"int", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, "idct"},
00251 {"simple", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, "idct"},
00252 {"simplemmx", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
00253 {"libmpeg2mmx", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_LIBMPEG2MMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
00254 {"ps2", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_PS2 }, INT_MIN, INT_MAX, V|E|D, "idct"},
00255 {"mlib", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_MLIB }, INT_MIN, INT_MAX, V|E|D, "idct"},
00256 {"arm", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
00257 {"altivec", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, "idct"},
00258 {"sh4", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SH4 }, INT_MIN, INT_MAX, V|E|D, "idct"},
00259 {"simplearm", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
00260 {"simplearmv5te", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, "idct"},
00261 {"simplearmv6", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, "idct"},
00262 {"simpleneon", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, "idct"},
00263 {"simplealpha", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_SIMPLEALPHA }, INT_MIN, INT_MAX, V|E|D, "idct"},
00264 {"h264", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_H264 }, INT_MIN, INT_MAX, V|E|D, "idct"},
00265 {"vp3", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_VP3 }, INT_MIN, INT_MAX, V|E|D, "idct"},
00266 {"ipp", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_IPP }, INT_MIN, INT_MAX, V|E|D, "idct"},
00267 {"xvidmmx", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_XVIDMMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
00268 {"faani", "floating point AAN IDCT", 0, AV_OPT_TYPE_CONST, {.dbl = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"},
00269 {"slice_count", NULL, OFFSET(slice_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00270 {"ec", "set error concealment strategy", OFFSET(error_concealment), AV_OPT_TYPE_FLAGS, {.dbl = 3 }, INT_MIN, INT_MAX, V|D, "ec"},
00271 {"guess_mvs", "iterative motion vector (MV) search (slow)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_EC_GUESS_MVS }, INT_MIN, INT_MAX, V|D, "ec"},
00272 {"deblock", "use strong deblock filter for damaged MBs", 0, AV_OPT_TYPE_CONST, {.dbl = FF_EC_DEBLOCK }, INT_MIN, INT_MAX, V|D, "ec"},
00273 {"bits_per_coded_sample", NULL, OFFSET(bits_per_coded_sample), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00274 {"pred", "prediction method", OFFSET(prediction_method), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "pred"},
00275 {"left", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PRED_LEFT }, INT_MIN, INT_MAX, V|E, "pred"},
00276 {"plane", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PRED_PLANE }, INT_MIN, INT_MAX, V|E, "pred"},
00277 {"median", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PRED_MEDIAN }, INT_MIN, INT_MAX, V|E, "pred"},
00278 {"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, 0, 10, V|E},
00279 {"debug", "print specific debug info", OFFSET(debug), AV_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, 0, INT_MAX, V|A|S|E|D, "debug"},
00280 {"pict", "picture info", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_PICT_INFO }, INT_MIN, INT_MAX, V|D, "debug"},
00281 {"rc", "rate control", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_RC }, INT_MIN, INT_MAX, V|E, "debug"},
00282 {"bitstream", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_BITSTREAM }, INT_MIN, INT_MAX, V|D, "debug"},
00283 {"mb_type", "macroblock (MB) type", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_MB_TYPE }, INT_MIN, INT_MAX, V|D, "debug"},
00284 {"qp", "per-block quantization parameter (QP)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_QP }, INT_MIN, INT_MAX, V|D, "debug"},
00285 {"mv", "motion vector", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_MV }, INT_MIN, INT_MAX, V|D, "debug"},
00286 {"dct_coeff", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_DCT_COEFF }, INT_MIN, INT_MAX, V|D, "debug"},
00287 {"skip", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_SKIP }, INT_MIN, INT_MAX, V|D, "debug"},
00288 {"startcode", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_STARTCODE }, INT_MIN, INT_MAX, V|D, "debug"},
00289 {"pts", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_PTS }, INT_MIN, INT_MAX, V|D, "debug"},
00290 {"er", "error recognition", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_ER }, INT_MIN, INT_MAX, V|D, "debug"},
00291 {"mmco", "memory management control operations (H.264)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_MMCO }, INT_MIN, INT_MAX, V|D, "debug"},
00292 {"bugs", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_BUGS }, INT_MIN, INT_MAX, V|D, "debug"},
00293 {"vis_qp", "visualize quantization parameter (QP), lower QP are tinted greener", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_VIS_QP }, INT_MIN, INT_MAX, V|D, "debug"},
00294 {"vis_mb_type", "visualize block types", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_VIS_MB_TYPE }, INT_MIN, INT_MAX, V|D, "debug"},
00295 {"buffers", "picture buffer allocations", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_BUFFERS }, INT_MIN, INT_MAX, V|D, "debug"},
00296 {"thread_ops", "threading operations", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_THREADS }, INT_MIN, INT_MAX, V|D, "debug"},
00297 {"vismv", "visualize motion vectors (MVs)", OFFSET(debug_mv), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, V|D, "debug_mv"},
00298 {"pf", "forward predicted MVs of P-frames", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_VIS_MV_P_FOR }, INT_MIN, INT_MAX, V|D, "debug_mv"},
00299 {"bf", "forward predicted MVs of B-frames", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_VIS_MV_B_FOR }, INT_MIN, INT_MAX, V|D, "debug_mv"},
00300 {"bb", "backward predicted MVs of B-frames", 0, AV_OPT_TYPE_CONST, {.dbl = FF_DEBUG_VIS_MV_B_BACK }, INT_MIN, INT_MAX, V|D, "debug_mv"},
00301 {"cmp", "full pel me compare function", OFFSET(me_cmp), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00302 {"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00303 {"mbcmp", "macroblock compare function", OFFSET(mb_cmp), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00304 {"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), AV_OPT_TYPE_INT, {.dbl = FF_CMP_VSAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00305 {"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00306 {"last_pred", "amount of motion predictors from the previous frame", OFFSET(last_predictor_count), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00307 {"preme", "pre motion estimation", OFFSET(pre_me), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00308 {"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00309 {"sad", "sum of absolute differences, fast (default)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_SAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00310 {"sse", "sum of squared errors", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_SSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00311 {"satd", "sum of absolute Hadamard transformed differences", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_SATD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00312 {"dct", "sum of absolute DCT transformed differences", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_DCT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00313 {"psnr", "sum of squared quantization errors (avoid, low quality)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_PSNR }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00314 {"bit", "number of bits needed for the block", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_BIT }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00315 {"rd", "rate distortion optimal, slow", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_RD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00316 {"zero", "0", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_ZERO }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00317 {"vsad", "sum of absolute vertical differences", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_VSAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00318 {"vsse", "sum of squared vertical differences", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_VSSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00319 {"nsse", "noise preserving sum of squared differences", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_NSSE }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00320 #if CONFIG_SNOW_ENCODER
00321 {"w53", "5/3 wavelet, only used in snow", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_W53 }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00322 {"w97", "9/7 wavelet, only used in snow", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_W97 }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00323 #endif
00324 {"dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00325 {"chroma", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_CMP_CHROMA }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00326 {"pre_dia_size", "diamond type & size for motion estimation pre-pass", OFFSET(pre_dia_size), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00327 {"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), AV_OPT_TYPE_INT, {.dbl = 8 }, INT_MIN, INT_MAX, V|E},
00328 {"dtg_active_format", NULL, OFFSET(dtg_active_format), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00329 {"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00330 {"ibias", "intra quant bias", OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.dbl = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, V|E},
00331 {"pbias", "inter quant bias", OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.dbl = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, V|E},
00332 {"color_table_id", NULL, OFFSET(color_table_id), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00333 {"global_quality", NULL, OFFSET(global_quality), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
00334 {"coder", NULL, OFFSET(coder_type), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "coder"},
00335 {"vlc", "variable length coder / huffman coder", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CODER_TYPE_VLC }, INT_MIN, INT_MAX, V|E, "coder"},
00336 {"ac", "arithmetic coder", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CODER_TYPE_AC }, INT_MIN, INT_MAX, V|E, "coder"},
00337 {"raw", "raw (no encoding)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CODER_TYPE_RAW }, INT_MIN, INT_MAX, V|E, "coder"},
00338 {"rle", "run-length coder", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CODER_TYPE_RLE }, INT_MIN, INT_MAX, V|E, "coder"},
00339 {"deflate", "deflate-based coder", 0, AV_OPT_TYPE_CONST, {.dbl = FF_CODER_TYPE_DEFLATE }, INT_MIN, INT_MAX, V|E, "coder"},
00340 {"context", "context model", OFFSET(context_model), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00341 {"slice_flags", NULL, OFFSET(slice_flags), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00342 {"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00343 {"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "mbd"},
00344 {"simple", "use mbcmp (default)", 0, AV_OPT_TYPE_CONST, {.dbl = FF_MB_DECISION_SIMPLE }, INT_MIN, INT_MAX, V|E, "mbd"},
00345 {"bits", "use fewest bits", 0, AV_OPT_TYPE_CONST, {.dbl = FF_MB_DECISION_BITS }, INT_MIN, INT_MAX, V|E, "mbd"},
00346 {"rd", "use best rate distortion", 0, AV_OPT_TYPE_CONST, {.dbl = FF_MB_DECISION_RD }, INT_MIN, INT_MAX, V|E, "mbd"},
00347 {"stream_codec_tag", NULL, OFFSET(stream_codec_tag), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00348 {"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00349 {"lmin", "min lagrange factor (VBR)", OFFSET(lmin), AV_OPT_TYPE_INT, {.dbl =  2*FF_QP2LAMBDA }, 0, INT_MAX, V|E},
00350 {"lmax", "max lagrange factor (VBR)", OFFSET(lmax), AV_OPT_TYPE_INT, {.dbl = 31*FF_QP2LAMBDA }, 0, INT_MAX, V|E},
00351 {"nr", "noise reduction", OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00352 {"rc_init_occupancy", "number of bits which should be loaded into the rc buffer before decoding starts", OFFSET(rc_initial_buffer_occupancy), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00353 {"inter_threshold", NULL, OFFSET(inter_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00354 #if FF_API_X264_GLOBAL_OPTS
00355 #define X264_DEFAULTS CODEC_FLAG2_FASTPSKIP|CODEC_FLAG2_PSY|CODEC_FLAG2_MBTREE
00356 #else
00357 #define X264_DEFAULTS 0
00358 #endif
00359 #if FF_API_LAME_GLOBAL_OPTS
00360 #define LAME_DEFAULTS CODEC_FLAG2_BIT_RESERVOIR
00361 #else
00362 #define LAME_DEFAULTS 0
00363 #endif
00364 {"flags2", NULL, OFFSET(flags2), AV_OPT_TYPE_FLAGS, {.dbl = X264_DEFAULTS|LAME_DEFAULTS }, 0, UINT_MAX, V|A|E|D, "flags2"},
00365 {"error", NULL, OFFSET(error_rate), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00366 #if FF_API_ANTIALIAS_ALGO
00367 {"antialias", "MP3 antialias algorithm", OFFSET(antialias_algo), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|D, "aa"},
00368 {"auto", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_AA_AUTO }, INT_MIN, INT_MAX, V|D, "aa"},
00369 {"fastint", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_AA_FASTINT }, INT_MIN, INT_MAX, V|D, "aa"},
00370 {"int", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_AA_INT }, INT_MIN, INT_MAX, V|D, "aa"},
00371 {"float", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_AA_FLOAT }, INT_MIN, INT_MAX, V|D, "aa"},
00372 #endif
00373 {"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00374 {"threads", NULL, OFFSET(thread_count), AV_OPT_TYPE_INT, {.dbl = 1 }, INT_MIN, INT_MAX, V|E|D},
00375 {"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00376 {"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00377 {"dc", "intra_dc_precision", OFFSET(intra_dc_precision), AV_OPT_TYPE_INT, {.dbl = 0 }, INT_MIN, INT_MAX, V|E},
00378 {"nssew", "nsse weight", OFFSET(nsse_weight), AV_OPT_TYPE_INT, {.dbl = 8 }, INT_MIN, INT_MAX, V|E},
00379 {"skip_top", "number of macroblock rows at the top which are skipped", OFFSET(skip_top), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|D},
00380 {"skip_bottom", "number of macroblock rows at the bottom which are skipped", OFFSET(skip_bottom), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|D},
00381 {"profile", NULL, OFFSET(profile), AV_OPT_TYPE_INT, {.dbl = FF_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "profile"},
00382 {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "profile"},
00383 {"aac_main", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_AAC_MAIN }, INT_MIN, INT_MAX, A|E, "profile"},
00384 {"aac_low", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_AAC_LOW }, INT_MIN, INT_MAX, A|E, "profile"},
00385 {"aac_ssr", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_AAC_SSR }, INT_MIN, INT_MAX, A|E, "profile"},
00386 {"aac_ltp", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_AAC_LTP }, INT_MIN, INT_MAX, A|E, "profile"},
00387 {"dts", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_DTS }, INT_MIN, INT_MAX, A|E, "profile"},
00388 {"dts_es", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_DTS_ES }, INT_MIN, INT_MAX, A|E, "profile"},
00389 {"dts_96_24", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_DTS_96_24 }, INT_MIN, INT_MAX, A|E, "profile"},
00390 {"dts_hd_hra", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_DTS_HD_HRA }, INT_MIN, INT_MAX, A|E, "profile"},
00391 {"dts_hd_ma", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_PROFILE_DTS_HD_MA }, INT_MIN, INT_MAX, A|E, "profile"},
00392 {"level", NULL, OFFSET(level), AV_OPT_TYPE_INT, {.dbl = FF_LEVEL_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "level"},
00393 {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_LEVEL_UNKNOWN }, INT_MIN, INT_MAX, V|A|E, "level"},
00394 {"lowres", "decode at 1= 1/2, 2=1/4, 3=1/8 resolutions", OFFSET(lowres), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, V|A|D},
00395 {"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00396 {"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00397 {"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00398 {"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.dbl = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, V|E, "cmp_func"},
00399 {"border_mask", "increases the quantizer for macroblocks close to borders", OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},
00400 {"mblmin", "min macroblock lagrange factor (VBR)", OFFSET(mb_lmin), AV_OPT_TYPE_INT, {.dbl = FF_QP2LAMBDA * 2 }, 1, FF_LAMBDA_MAX, V|E},
00401 {"mblmax", "max macroblock lagrange factor (VBR)", OFFSET(mb_lmax), AV_OPT_TYPE_INT, {.dbl = FF_QP2LAMBDA * 31 }, 1, FF_LAMBDA_MAX, V|E},
00402 {"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {.dbl = 256 }, INT_MIN, INT_MAX, V|E},
00403 {"skip_loop_filter", NULL, OFFSET(skip_loop_filter), AV_OPT_TYPE_INT, {.dbl = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
00404 {"skip_idct"       , NULL, OFFSET(skip_idct)       , AV_OPT_TYPE_INT, {.dbl = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
00405 {"skip_frame"      , NULL, OFFSET(skip_frame)      , AV_OPT_TYPE_INT, {.dbl = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
00406 {"none"            , NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AVDISCARD_NONE    }, INT_MIN, INT_MAX, V|D, "avdiscard"},
00407 {"default"         , NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AVDISCARD_DEFAULT }, INT_MIN, INT_MAX, V|D, "avdiscard"},
00408 {"noref"           , NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AVDISCARD_NONREF  }, INT_MIN, INT_MAX, V|D, "avdiscard"},
00409 {"bidir"           , NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AVDISCARD_BIDIR   }, INT_MIN, INT_MAX, V|D, "avdiscard"},
00410 {"nokey"           , NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AVDISCARD_NONKEY  }, INT_MIN, INT_MAX, V|D, "avdiscard"},
00411 {"all"             , NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AVDISCARD_ALL     }, INT_MIN, INT_MAX, V|D, "avdiscard"},
00412 {"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), AV_OPT_TYPE_INT, {.dbl = 1 }, 0, 4, V|E},
00413 {"brd_scale", "downscales frames for dynamic B-frame decision", OFFSET(brd_scale), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, 10, V|E},
00414 #if FF_API_X264_GLOBAL_OPTS
00415 {"crf", "enables constant quality mode, and selects the quality (x264/VP8)", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, 0, 63, V|E},
00416 {"cqp", "constant quantization parameter rate control method", OFFSET(cqp), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, V|E},
00417 #endif
00418 {"keyint_min", "minimum interval between IDR-frames", OFFSET(keyint_min), AV_OPT_TYPE_INT, {.dbl = 25 }, INT_MIN, INT_MAX, V|E},
00419 {"refs", "reference frames to consider for motion compensation", OFFSET(refs), AV_OPT_TYPE_INT, {.dbl = 1 }, INT_MIN, INT_MAX, V|E},
00420 {"chromaoffset", "chroma qp offset from luma", OFFSET(chromaoffset), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00421 #if FF_API_X264_GLOBAL_OPTS
00422 {"bframebias", "influences how often B-frames are used", OFFSET(bframebias), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
00423 #endif
00424 {"trellis", "rate-distortion optimal quantization", OFFSET(trellis), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
00425 #if FF_API_X264_GLOBAL_OPTS
00426 {"directpred", "direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto)", OFFSET(directpred), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, V|E},
00427 {"bpyramid", "allows B-frames to be used as references for predicting", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_BPYRAMID }, INT_MIN, INT_MAX, V|E, "flags2"},
00428 {"wpred", "weighted biprediction for b-frames (H.264)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_WPRED }, INT_MIN, INT_MAX, V|E, "flags2"},
00429 {"mixed_refs", "one reference per partition, as opposed to one reference per macroblock", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_MIXED_REFS }, INT_MIN, INT_MAX, V|E, "flags2"},
00430 {"dct8x8", "high profile 8x8 transform (H.264)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_8X8DCT }, INT_MIN, INT_MAX, V|E, "flags2"},
00431 {"fastpskip", "fast pskip (H.264)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_FASTPSKIP }, INT_MIN, INT_MAX, V|E, "flags2"},
00432 {"aud", "access unit delimiters (H.264)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_AUD }, INT_MIN, INT_MAX, V|E, "flags2"},
00433 #endif
00434 {"skiprd", "RD optimal MB level residual skipping", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_SKIP_RD }, INT_MIN, INT_MAX, V|E, "flags2"},
00435 #if FF_API_X264_GLOBAL_OPTS
00436 {"complexityblur", "reduce fluctuations in qp (before curve compression)", OFFSET(complexityblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, V|E},
00437 {"deblockalpha", "in-loop deblocking filter alphac0 parameter", OFFSET(deblockalpha), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, -6, 6, V|E},
00438 {"deblockbeta", "in-loop deblocking filter beta parameter", OFFSET(deblockbeta), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, -6, 6, V|E},
00439 {"partitions", "macroblock subpartition sizes to consider", OFFSET(partitions), AV_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E, "partitions"},
00440 {"parti4x4", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = X264_PART_I4X4 }, INT_MIN, INT_MAX, V|E, "partitions"},
00441 {"parti8x8", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = X264_PART_I8X8 }, INT_MIN, INT_MAX, V|E, "partitions"},
00442 {"partp4x4", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = X264_PART_P4X4 }, INT_MIN, INT_MAX, V|E, "partitions"},
00443 {"partp8x8", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = X264_PART_P8X8 }, INT_MIN, INT_MAX, V|E, "partitions"},
00444 {"partb8x8", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = X264_PART_B8X8 }, INT_MIN, INT_MAX, V|E, "partitions"},
00445 #endif
00446 {"sc_factor", "multiplied by qscale for each frame and added to scene_change_score", OFFSET(scenechange_factor), AV_OPT_TYPE_INT, {.dbl = 6 }, 0, INT_MAX, V|E},
00447 {"mv0_threshold", NULL, OFFSET(mv0_threshold), AV_OPT_TYPE_INT, {.dbl = 256 }, 0, INT_MAX, V|E},
00448 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
00449 {"ivlc", "intra vlc table", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_INTRA_VLC }, INT_MIN, INT_MAX, V|E, "flags2"},
00450 #endif
00451 {"b_sensitivity", "adjusts sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), AV_OPT_TYPE_INT, {.dbl = 40 }, 1, INT_MAX, V|E},
00452 {"compression_level", NULL, OFFSET(compression_level), AV_OPT_TYPE_INT, {.dbl = FF_COMPRESSION_DEFAULT }, INT_MIN, INT_MAX, V|A|E},
00453 {"min_prediction_order", NULL, OFFSET(min_prediction_order), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E},
00454 {"max_prediction_order", NULL, OFFSET(max_prediction_order), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E},
00455 #if FF_API_FLAC_GLOBAL_OPTS
00456 {"lpc_coeff_precision", "deprecated, use flac-specific options", OFFSET(lpc_coeff_precision), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, A|E},
00457 {"prediction_order_method", "deprecated, use flac-specific options", OFFSET(prediction_order_method), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E},
00458 {"min_partition_order", "deprecated, use flac-specific options", OFFSET(min_partition_order), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E},
00459 {"max_partition_order", "deprecated, use flac-specific options", OFFSET(max_partition_order), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E},
00460 #endif
00461 {"timecode_frame_start", "GOP timecode frame start number, in non drop frame format", OFFSET(timecode_frame_start), AV_OPT_TYPE_INT64, {.dbl = 0 }, 0, INT64_MAX, V|E},
00462 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
00463 {"drop_frame_timecode", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_DROP_FRAME_TIMECODE }, INT_MIN, INT_MAX, V|E, "flags2"},
00464 {"non_linear_q", "use non linear quantizer", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_NON_LINEAR_QUANT }, INT_MIN, INT_MAX, V|E, "flags2"},
00465 #endif
00466 #if FF_API_REQUEST_CHANNELS
00467 {"request_channels", "set desired number of audio channels", OFFSET(request_channels), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, A|D},
00468 #endif
00469 #if FF_API_DRC_SCALE
00470 {"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, 0.0, 1.0, A|D},
00471 #endif
00472 #if FF_API_LAME_GLOBAL_OPTS
00473 {"reservoir", "use bit reservoir", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_BIT_RESERVOIR }, INT_MIN, INT_MAX, A|E, "flags2"},
00474 #endif
00475 #if FF_API_X264_GLOBAL_OPTS
00476 {"mbtree", "use macroblock tree ratecontrol (x264 only)", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_MBTREE }, INT_MIN, INT_MAX, V|E, "flags2"},
00477 #endif
00478 {"bits_per_raw_sample", NULL, OFFSET(bits_per_raw_sample), AV_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
00479 {"channel_layout", NULL, OFFSET(channel_layout), AV_OPT_TYPE_INT64, {.dbl = DEFAULT }, 0, INT64_MAX, A|E|D, "channel_layout"},
00480 {"request_channel_layout", NULL, OFFSET(request_channel_layout), AV_OPT_TYPE_INT64, {.dbl = DEFAULT }, 0, INT64_MAX, A|D, "request_channel_layout"},
00481 {"rc_max_vbv_use", NULL, OFFSET(rc_max_available_vbv_use), AV_OPT_TYPE_FLOAT, {.dbl = 1.0/3 }, 0.0, FLT_MAX, V|E},
00482 {"rc_min_vbv_use", NULL, OFFSET(rc_min_vbv_overflow_use),  AV_OPT_TYPE_FLOAT, {.dbl = 3 },     0.0, FLT_MAX, V|E},
00483 {"ticks_per_frame", NULL, OFFSET(ticks_per_frame), AV_OPT_TYPE_INT, {.dbl = 1 }, 1, INT_MAX, A|V|E|D},
00484 {"color_primaries", NULL, OFFSET(color_primaries), AV_OPT_TYPE_INT, {.dbl = AVCOL_PRI_UNSPECIFIED }, 1, AVCOL_PRI_NB-1, V|E|D},
00485 {"color_trc", NULL, OFFSET(color_trc), AV_OPT_TYPE_INT, {.dbl = AVCOL_TRC_UNSPECIFIED }, 1, AVCOL_TRC_NB-1, V|E|D},
00486 {"colorspace", NULL, OFFSET(colorspace), AV_OPT_TYPE_INT, {.dbl = AVCOL_SPC_UNSPECIFIED }, 1, AVCOL_SPC_NB-1, V|E|D},
00487 {"color_range", NULL, OFFSET(color_range), AV_OPT_TYPE_INT, {.dbl = AVCOL_RANGE_UNSPECIFIED }, 0, AVCOL_RANGE_NB-1, V|E|D},
00488 {"chroma_sample_location", NULL, OFFSET(chroma_sample_location), AV_OPT_TYPE_INT, {.dbl = AVCHROMA_LOC_UNSPECIFIED }, 0, AVCHROMA_LOC_NB-1, V|E|D},
00489 #if FF_API_X264_GLOBAL_OPTS
00490 {"psy", "use psycho visual optimization", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_PSY }, INT_MIN, INT_MAX, V|E, "flags2"},
00491 {"psy_rd", "specify psycho visual strength", OFFSET(psy_rd), AV_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1, FLT_MAX, V|E},
00492 {"psy_trellis", "specify psycho visual trellis", OFFSET(psy_trellis), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, V|E},
00493 {"aq_mode", "specify aq method", OFFSET(aq_mode), AV_OPT_TYPE_INT, {.dbl = -1 }, -1, INT_MAX, V|E},
00494 {"aq_strength", "specify aq strength", OFFSET(aq_strength), AV_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1, FLT_MAX, V|E},
00495 {"rc_lookahead", "specify number of frames to look ahead for frametype", OFFSET(rc_lookahead), AV_OPT_TYPE_INT, {.dbl = -1 }, -1, INT_MAX, V|E},
00496 {"ssim", "ssim will be calculated during encoding", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_SSIM }, INT_MIN, INT_MAX, V|E, "flags2"},
00497 {"intra_refresh", "use periodic insertion of intra blocks instead of keyframes", 0, AV_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_INTRA_REFRESH }, INT_MIN, INT_MAX, V|E, "flags2"},
00498 {"crf_max", "in crf mode, prevents vbv from lowering quality beyond this point", OFFSET(crf_max), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, 0, 51, V|E},
00499 #endif
00500 {"log_level_offset", "set the log level offset", OFFSET(log_level_offset), AV_OPT_TYPE_INT, {.dbl = 0 }, INT_MIN, INT_MAX },
00501 #if FF_API_FLAC_GLOBAL_OPTS
00502 {"lpc_type", "deprecated, use flac-specific options", OFFSET(lpc_type), AV_OPT_TYPE_INT, {.dbl = AV_LPC_TYPE_DEFAULT }, AV_LPC_TYPE_DEFAULT, AV_LPC_TYPE_NB-1, A|E},
00503 {"none",     NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AV_LPC_TYPE_NONE },     INT_MIN, INT_MAX, A|E, "lpc_type"},
00504 {"fixed",    NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AV_LPC_TYPE_FIXED },    INT_MIN, INT_MAX, A|E, "lpc_type"},
00505 {"levinson", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AV_LPC_TYPE_LEVINSON }, INT_MIN, INT_MAX, A|E, "lpc_type"},
00506 {"cholesky", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = AV_LPC_TYPE_CHOLESKY }, INT_MIN, INT_MAX, A|E, "lpc_type"},
00507 {"lpc_passes", "deprecated, use flac-specific options", OFFSET(lpc_passes), AV_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E},
00508 #endif
00509 {"slices", "number of slices, used in parallelized decoding", OFFSET(slices), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, V|E},
00510 {"thread_type", "select multithreading type", OFFSET(thread_type), AV_OPT_TYPE_FLAGS, {.dbl = FF_THREAD_SLICE|FF_THREAD_FRAME }, 0, INT_MAX, V|E|D, "thread_type"},
00511 {"slice", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_THREAD_SLICE }, INT_MIN, INT_MAX, V|E|D, "thread_type"},
00512 {"frame", NULL, 0, AV_OPT_TYPE_CONST, {.dbl = FF_THREAD_FRAME }, INT_MIN, INT_MAX, V|E|D, "thread_type"},
00513 {"audio_service_type", "audio service type", OFFSET(audio_service_type), AV_OPT_TYPE_INT, {.dbl = AV_AUDIO_SERVICE_TYPE_MAIN }, 0, AV_AUDIO_SERVICE_TYPE_NB-1, A|E, "audio_service_type"},
00514 {"ma", "Main Audio Service", 0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_MAIN },              INT_MIN, INT_MAX, A|E, "audio_service_type"},
00515 {"ef", "Effects",            0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_EFFECTS },           INT_MIN, INT_MAX, A|E, "audio_service_type"},
00516 {"vi", "Visually Impaired",  0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED }, INT_MIN, INT_MAX, A|E, "audio_service_type"},
00517 {"hi", "Hearing Impaired",   0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED },  INT_MIN, INT_MAX, A|E, "audio_service_type"},
00518 {"di", "Dialogue",           0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_DIALOGUE },          INT_MIN, INT_MAX, A|E, "audio_service_type"},
00519 {"co", "Commentary",         0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_COMMENTARY },        INT_MIN, INT_MAX, A|E, "audio_service_type"},
00520 {"em", "Emergency",          0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_EMERGENCY },         INT_MIN, INT_MAX, A|E, "audio_service_type"},
00521 {"vo", "Voice Over",         0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_VOICE_OVER },        INT_MIN, INT_MAX, A|E, "audio_service_type"},
00522 {"ka", "Karaoke",            0, AV_OPT_TYPE_CONST, {.dbl = AV_AUDIO_SERVICE_TYPE_KARAOKE },           INT_MIN, INT_MAX, A|E, "audio_service_type"},
00523 {"request_sample_fmt", "sample format audio decoders should prefer", OFFSET(request_sample_fmt), AV_OPT_TYPE_INT, {.dbl = AV_SAMPLE_FMT_NONE }, AV_SAMPLE_FMT_NONE, AV_SAMPLE_FMT_NB-1, A|D, "request_sample_fmt"},
00524 {"u8" , "8-bit unsigned integer", 0, AV_OPT_TYPE_CONST, {.dbl = AV_SAMPLE_FMT_U8  }, INT_MIN, INT_MAX, A|D, "request_sample_fmt"},
00525 {"s16", "16-bit signed integer",  0, AV_OPT_TYPE_CONST, {.dbl = AV_SAMPLE_FMT_S16 }, INT_MIN, INT_MAX, A|D, "request_sample_fmt"},
00526 {"s32", "32-bit signed integer",  0, AV_OPT_TYPE_CONST, {.dbl = AV_SAMPLE_FMT_S32 }, INT_MIN, INT_MAX, A|D, "request_sample_fmt"},
00527 {"flt", "32-bit float",           0, AV_OPT_TYPE_CONST, {.dbl = AV_SAMPLE_FMT_FLT }, INT_MIN, INT_MAX, A|D, "request_sample_fmt"},
00528 {"dbl", "64-bit double",          0, AV_OPT_TYPE_CONST, {.dbl = AV_SAMPLE_FMT_DBL }, INT_MIN, INT_MAX, A|D, "request_sample_fmt"},
00529 {NULL},
00530 };
00531 
00532 #undef A
00533 #undef V
00534 #undef S
00535 #undef E
00536 #undef D
00537 #undef DEFAULT
00538 
00539 static const AVClass av_codec_context_class = {
00540     .class_name              = "AVCodecContext",
00541     .item_name               = context_to_name,
00542     .option                  = options,
00543     .version                 = LIBAVUTIL_VERSION_INT,
00544     .log_level_offset_offset = OFFSET(log_level_offset),
00545     .child_next              = codec_child_next,
00546     .child_class_next        = codec_child_class_next,
00547 };
00548 
00549 #if FF_API_ALLOC_CONTEXT
00550 void avcodec_get_context_defaults2(AVCodecContext *s, enum AVMediaType codec_type){
00551     AVCodec c= {0};
00552     c.type= codec_type;
00553     avcodec_get_context_defaults3(s, &c);
00554 }
00555 #endif
00556 
00557 int avcodec_get_context_defaults3(AVCodecContext *s, AVCodec *codec){
00558     int flags=0;
00559     memset(s, 0, sizeof(AVCodecContext));
00560 
00561     s->av_class = &av_codec_context_class;
00562 
00563     s->codec_type = codec ? codec->type : AVMEDIA_TYPE_UNKNOWN;
00564     if(s->codec_type == AVMEDIA_TYPE_AUDIO)
00565         flags= AV_OPT_FLAG_AUDIO_PARAM;
00566     else if(s->codec_type == AVMEDIA_TYPE_VIDEO)
00567         flags= AV_OPT_FLAG_VIDEO_PARAM;
00568     else if(s->codec_type == AVMEDIA_TYPE_SUBTITLE)
00569         flags= AV_OPT_FLAG_SUBTITLE_PARAM;
00570     av_opt_set_defaults2(s, flags, flags);
00571 
00572     s->time_base           = (AVRational){0,1};
00573     s->get_buffer          = avcodec_default_get_buffer;
00574     s->release_buffer      = avcodec_default_release_buffer;
00575     s->get_format          = avcodec_default_get_format;
00576     s->execute             = avcodec_default_execute;
00577     s->execute2            = avcodec_default_execute2;
00578     s->sample_aspect_ratio = (AVRational){0,1};
00579     s->pix_fmt             = PIX_FMT_NONE;
00580     s->sample_fmt          = AV_SAMPLE_FMT_NONE;
00581     s->timecode_frame_start = -1;
00582 
00583     s->reget_buffer        = avcodec_default_reget_buffer;
00584     s->reordered_opaque    = AV_NOPTS_VALUE;
00585     if(codec && codec->priv_data_size){
00586         if(!s->priv_data){
00587             s->priv_data= av_mallocz(codec->priv_data_size);
00588             if (!s->priv_data) {
00589                 return AVERROR(ENOMEM);
00590             }
00591         }
00592         if(codec->priv_class){
00593             *(const AVClass**)s->priv_data = codec->priv_class;
00594             av_opt_set_defaults(s->priv_data);
00595         }
00596     }
00597     if (codec && codec->defaults) {
00598         int ret;
00599         const AVCodecDefault *d = codec->defaults;
00600         while (d->key) {
00601             ret = av_opt_set(s, d->key, d->value, 0);
00602             av_assert0(ret >= 0);
00603             d++;
00604         }
00605     }
00606     return 0;
00607 }
00608 
00609 AVCodecContext *avcodec_alloc_context3(AVCodec *codec){
00610     AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
00611 
00612     if(avctx==NULL) return NULL;
00613 
00614     if(avcodec_get_context_defaults3(avctx, codec) < 0){
00615         av_free(avctx);
00616         return NULL;
00617     }
00618 
00619     return avctx;
00620 }
00621 
00622 #if FF_API_ALLOC_CONTEXT
00623 AVCodecContext *avcodec_alloc_context2(enum AVMediaType codec_type){
00624     AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
00625 
00626     if(avctx==NULL) return NULL;
00627 
00628     avcodec_get_context_defaults2(avctx, codec_type);
00629 
00630     return avctx;
00631 }
00632 
00633 void avcodec_get_context_defaults(AVCodecContext *s){
00634     avcodec_get_context_defaults2(s, AVMEDIA_TYPE_UNKNOWN);
00635 }
00636 
00637 AVCodecContext *avcodec_alloc_context(void){
00638     return avcodec_alloc_context2(AVMEDIA_TYPE_UNKNOWN);
00639 }
00640 #endif
00641 
00642 int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
00643 {
00644     if (dest->codec) { // check that the dest context is uninitialized
00645         av_log(dest, AV_LOG_ERROR,
00646                "Tried to copy AVCodecContext %p into already-initialized %p\n",
00647                src, dest);
00648         return AVERROR(EINVAL);
00649     }
00650     memcpy(dest, src, sizeof(*dest));
00651 
00652     /* set values specific to opened codecs back to their default state */
00653     dest->priv_data       = NULL;
00654     dest->codec           = NULL;
00655     dest->slice_offset    = NULL;
00656     dest->hwaccel         = NULL;
00657     dest->thread_opaque   = NULL;
00658     dest->internal        = NULL;
00659 
00660     /* reallocate values that should be allocated separately */
00661     dest->rc_eq           = NULL;
00662     dest->extradata       = NULL;
00663     dest->intra_matrix    = NULL;
00664     dest->inter_matrix    = NULL;
00665     dest->rc_override     = NULL;
00666     if (src->rc_eq) {
00667         dest->rc_eq = av_strdup(src->rc_eq);
00668         if (!dest->rc_eq)
00669             return AVERROR(ENOMEM);
00670     }
00671 
00672 #define alloc_and_copy_or_fail(obj, size, pad) \
00673     if (src->obj && size > 0) { \
00674         dest->obj = av_malloc(size + pad); \
00675         if (!dest->obj) \
00676             goto fail; \
00677         memcpy(dest->obj, src->obj, size); \
00678         if (pad) \
00679             memset(((uint8_t *) dest->obj) + size, 0, pad); \
00680     }
00681     alloc_and_copy_or_fail(extradata,    src->extradata_size,
00682                            FF_INPUT_BUFFER_PADDING_SIZE);
00683     alloc_and_copy_or_fail(intra_matrix, 64 * sizeof(int16_t), 0);
00684     alloc_and_copy_or_fail(inter_matrix, 64 * sizeof(int16_t), 0);
00685     alloc_and_copy_or_fail(rc_override,  src->rc_override_count * sizeof(*src->rc_override), 0);
00686 #undef alloc_and_copy_or_fail
00687 
00688     return 0;
00689 
00690 fail:
00691     av_freep(&dest->rc_override);
00692     av_freep(&dest->intra_matrix);
00693     av_freep(&dest->inter_matrix);
00694     av_freep(&dest->extradata);
00695     av_freep(&dest->rc_eq);
00696     return AVERROR(ENOMEM);
00697 }
00698 
00699 const AVClass *avcodec_get_class(void)
00700 {
00701     return &av_codec_context_class;
00702 }
00703 
00704 #define FOFFSET(x) offsetof(AVFrame,x)
00705 
00706 static const AVOption frame_options[]={
00707 {"best_effort_timestamp", "", FOFFSET(best_effort_timestamp), AV_OPT_TYPE_INT64, {.dbl = AV_NOPTS_VALUE }, INT64_MIN, INT64_MAX, 0},
00708 {"pkt_pos", "", FOFFSET(pkt_pos), AV_OPT_TYPE_INT64, {.dbl = -1 }, INT64_MIN, INT64_MAX, 0},
00709 {"sample_aspect_ratio", "", FOFFSET(sample_aspect_ratio), AV_OPT_TYPE_RATIONAL, {.dbl = 0 }, 0, INT_MAX, 0},
00710 {"width", "", FOFFSET(width), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, 0},
00711 {"height", "", FOFFSET(height), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, 0},
00712 {"format", "", FOFFSET(format), AV_OPT_TYPE_INT, {.dbl = -1 }, 0, INT_MAX, 0},
00713 {NULL},
00714 };
00715 
00716 static const AVClass av_frame_class = {
00717     .class_name              = "AVFrame",
00718     .item_name               = NULL,
00719     .option                  = frame_options,
00720     .version                 = LIBAVUTIL_VERSION_INT,
00721 };
00722 
00723 const AVClass *avcodec_get_frame_class(void)
00724 {
00725     return &av_frame_class;
00726 }