movenc: Deprecate the global RTP hinting flag, use a private AVOption instead
[libav.git] / libavformat / options.c
CommitLineData
708ec8fb
SS
1/*
2 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
3 *
2912e87a 4 * This file is part of Libav.
708ec8fb 5 *
2912e87a 6 * Libav is free software; you can redistribute it and/or
708ec8fb
SS
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
2912e87a 11 * Libav is distributed in the hope that it will be useful,
708ec8fb
SS
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
2912e87a 17 * License along with Libav; if not, write to the Free Software
708ec8fb
SS
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20#include "avformat.h"
6ed04040 21#include "libavutil/opt.h"
708ec8fb
SS
22
23/**
ba87f080 24 * @file
708ec8fb
SS
25 * Options definition for AVFormatContext.
26 */
27
28static const char* format_to_name(void* ptr)
29{
30 AVFormatContext* fc = (AVFormatContext*) ptr;
31 if(fc->iformat) return fc->iformat->name;
32 else if(fc->oformat) return fc->oformat->name;
33 else return "NULL";
34}
35
36#define OFFSET(x) offsetof(AVFormatContext,x)
37#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
38//these names are too long to be readable
39#define E AV_OPT_FLAG_ENCODING_PARAM
40#define D AV_OPT_FLAG_DECODING_PARAM
41
42static const AVOption options[]={
b6675279
AK
43{"probesize", "set probing size", OFFSET(probesize), FF_OPT_TYPE_INT, {.dbl = 5000000 }, 32, INT_MAX, D},
44{"muxrate", "set mux rate", OFFSET(mux_rate), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, E},
45{"packetsize", "set packet size", OFFSET(packet_size), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, E},
46{"fflags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, INT_MIN, INT_MAX, D|E, "fflags"},
47{"ignidx", "ignore index", 0, FF_OPT_TYPE_CONST, {.dbl = AVFMT_FLAG_IGNIDX }, INT_MIN, INT_MAX, D, "fflags"},
48{"genpts", "generate pts", 0, FF_OPT_TYPE_CONST, {.dbl = AVFMT_FLAG_GENPTS }, INT_MIN, INT_MAX, D, "fflags"},
49{"nofillin", "do not fill in missing values that can be exactly calculated", 0, FF_OPT_TYPE_CONST, {.dbl = AVFMT_FLAG_NOFILLIN }, INT_MIN, INT_MAX, D, "fflags"},
50{"noparse", "disable AVParsers, this needs nofillin too", 0, FF_OPT_TYPE_CONST, {.dbl = AVFMT_FLAG_NOPARSE }, INT_MIN, INT_MAX, D, "fflags"},
51{"igndts", "ignore dts", 0, FF_OPT_TYPE_CONST, {.dbl = AVFMT_FLAG_IGNDTS }, INT_MIN, INT_MAX, D, "fflags"},
28734ac9
MS
52#if FF_API_FLAG_RTP_HINT
53{"rtphint", "add rtp hinting (deprecated, use the -movflags rtphint option instead)", 0, FF_OPT_TYPE_CONST, {.dbl = AVFMT_FLAG_RTP_HINT }, INT_MIN, INT_MAX, E, "fflags"},
54#endif
b6675279
AK
55{"analyzeduration", "how many microseconds are analyzed to estimate duration", OFFSET(max_analyze_duration), FF_OPT_TYPE_INT, {.dbl = 5*AV_TIME_BASE }, 0, INT_MAX, D},
56{"cryptokey", "decryption key", OFFSET(key), FF_OPT_TYPE_BINARY, {.dbl = 0}, 0, 0, D},
57{"indexmem", "max memory used for timestamp index (per stream)", OFFSET(max_index_size), FF_OPT_TYPE_INT, {.dbl = 1<<20 }, 0, INT_MAX, D},
58{"rtbufsize", "max memory used for buffering real-time frames", OFFSET(max_picture_buffer), FF_OPT_TYPE_INT, {.dbl = 3041280 }, 0, INT_MAX, D}, /* defaults to 1s of 15fps 352x288 YUYV422 video */
59{"fdebug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, {.dbl = DEFAULT }, 0, INT_MAX, E|D, "fdebug"},
60{"ts", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_FDEBUG_TS }, INT_MIN, INT_MAX, E|D, "fdebug"},
61{"max_delay", "maximum muxing or demuxing delay in microseconds", OFFSET(max_delay), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, E|D},
30315a8d 62{"fpsprobesize", "number of frames used to probe fps", OFFSET(fps_probe_size), FF_OPT_TYPE_INT, -1, -1, INT_MAX-1, D},
708ec8fb
SS
63{NULL},
64};
65
66#undef E
67#undef D
68#undef DEFAULT
69
f0029cbc
AK
70static const AVClass av_format_context_class = {
71 .class_name = "AVFormatContext",
72 .item_name = format_to_name,
73 .option = options,
74 .version = LIBAVUTIL_VERSION_INT,
75};
708ec8fb
SS
76
77static void avformat_get_context_defaults(AVFormatContext *s)
78{
79 memset(s, 0, sizeof(AVFormatContext));
80
81 s->av_class = &av_format_context_class;
82
83 av_opt_set_defaults(s);
84}
85
88a28965 86AVFormatContext *avformat_alloc_context(void)
708ec8fb
SS
87{
88 AVFormatContext *ic;
89 ic = av_malloc(sizeof(AVFormatContext));
90 if (!ic) return ic;
91 avformat_get_context_defaults(ic);
708ec8fb
SS
92 return ic;
93}