X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Foptions.c;h=3399dd43977366759677d70d9f5e9c142b36b1fb;hb=9e6b5e61a0c91e25e298d0a21b189c4c95443795;hp=27eb8da76adac55e376ca855d16a91b294497112;hpb=ca51d86c96675aabf3f05c9052593b4bc8eb927f;p=ffmpeg diff --git a/libavformat/options.c b/libavformat/options.c index 27eb8da76ad..3399dd43977 100644 --- a/libavformat/options.c +++ b/libavformat/options.c @@ -1,23 +1,24 @@ /* * Copyright (c) 2000, 2001, 2002 Fabrice Bellard * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav 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, + * Libav 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 + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "avformat.h" +#include "avio_internal.h" #include "libavutil/opt.h" /** @@ -25,6 +26,8 @@ * Options definition for AVFormatContext. */ +#include "options_table.h" + static const char* format_to_name(void* ptr) { AVFormatContext* fc = (AVFormatContext*) ptr; @@ -33,42 +36,54 @@ static const char* format_to_name(void* ptr) else return "NULL"; } -#define OFFSET(x) offsetof(AVFormatContext,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 E AV_OPT_FLAG_ENCODING_PARAM -#define D AV_OPT_FLAG_DECODING_PARAM - -static const AVOption options[]={ -{"probesize", "set probing size", OFFSET(probesize), FF_OPT_TYPE_INT, 5000000, 32, INT_MAX, D}, -{"muxrate", "set mux rate", OFFSET(mux_rate), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, E}, -{"packetsize", "set packet size", OFFSET(packet_size), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, E}, -{"fflags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, D|E, "fflags"}, -{"ignidx", "ignore index", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_IGNIDX, INT_MIN, INT_MAX, D, "fflags"}, -{"genpts", "generate pts", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_GENPTS, INT_MIN, INT_MAX, D, "fflags"}, -{"nofillin", "do not fill in missing values that can be exactly calculated", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_NOFILLIN, INT_MIN, INT_MAX, D, "fflags"}, -{"noparse", "disable AVParsers, this needs nofillin too", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_NOPARSE, INT_MIN, INT_MAX, D, "fflags"}, -{"igndts", "ignore dts", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_IGNDTS, INT_MIN, INT_MAX, D, "fflags"}, -{"rtphint", "add rtp hinting", 0, FF_OPT_TYPE_CONST, AVFMT_FLAG_RTP_HINT, INT_MIN, INT_MAX, E, "fflags"}, -#if FF_API_OLD_METADATA -{"track", " set the track number", OFFSET(track), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, E}, -{"year", "set the year", OFFSET(year), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, E}, -#endif -{"analyzeduration", "how many microseconds are analyzed to estimate duration", OFFSET(max_analyze_duration), FF_OPT_TYPE_INT, 5*AV_TIME_BASE, 0, INT_MAX, D}, -{"cryptokey", "decryption key", OFFSET(key), FF_OPT_TYPE_BINARY, 0, 0, 0, D}, -{"indexmem", "max memory used for timestamp index (per stream)", OFFSET(max_index_size), FF_OPT_TYPE_INT, 1<<20, 0, INT_MAX, D}, -{"rtbufsize", "max memory used for buffering real-time frames", OFFSET(max_picture_buffer), FF_OPT_TYPE_INT, 3041280, 0, INT_MAX, D}, /* defaults to 1s of 15fps 352x288 YUYV422 video */ -{"fdebug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, E|D, "fdebug"}, -{"ts", NULL, 0, FF_OPT_TYPE_CONST, FF_FDEBUG_TS, INT_MIN, INT_MAX, E|D, "fdebug"}, -{"max_delay", "maximum muxing or demuxing delay in microseconds", OFFSET(max_delay), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, E|D}, -{NULL}, -}; +static void *format_child_next(void *obj, void *prev) +{ + AVFormatContext *s = obj; + if (!prev && s->priv_data && + ((s->iformat && s->iformat->priv_class) || + s->oformat && s->oformat->priv_class)) + return s->priv_data; + if (s->pb && s->pb->av_class && prev != s->pb) + return s->pb; + return NULL; +} + +static const AVClass *format_child_class_next(const AVClass *prev) +{ + AVInputFormat *ifmt = NULL; + AVOutputFormat *ofmt = NULL; -#undef E -#undef D -#undef DEFAULT + if (!prev) + return &ffio_url_class; -static const AVClass av_format_context_class = { "AVFormatContext", format_to_name, options, LIBAVUTIL_VERSION_INT }; + while ((ifmt = av_iformat_next(ifmt))) + if (ifmt->priv_class == prev) + break; + + if (!ifmt) + while ((ofmt = av_oformat_next(ofmt))) + if (ofmt->priv_class == prev) + break; + if (!ofmt) + while (ifmt = av_iformat_next(ifmt)) + if (ifmt->priv_class) + return ifmt->priv_class; + + while (ofmt = av_oformat_next(ofmt)) + if (ofmt->priv_class) + return ofmt->priv_class; + + return NULL; +} + +static const AVClass av_format_context_class = { + .class_name = "AVFormatContext", + .item_name = format_to_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, + .child_next = format_child_next, + .child_class_next = format_child_class_next, +}; static void avformat_get_context_defaults(AVFormatContext *s) { @@ -85,13 +100,10 @@ AVFormatContext *avformat_alloc_context(void) ic = av_malloc(sizeof(AVFormatContext)); if (!ic) return ic; avformat_get_context_defaults(ic); - ic->av_class = &av_format_context_class; return ic; } -#if FF_API_ALLOC_FORMAT_CONTEXT -AVFormatContext *av_alloc_format_context(void) +const AVClass *avformat_get_class(void) { - return avformat_alloc_context(); + return &av_format_context_class; } -#endif