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FFmpeg/libavformat/rtpenc_chain.c
Michael Niedermayer 53ce990513 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  opt: Add av_opt_set_bin()
  avconv: Display the error returned by avformat_write_header
  rtpenc_chain: Return an error code instead of just a plain pointer
  rtpenc_chain: Free the URLContext on failure
  rtpenc: Expose the ssrc as an avoption
  avprobe: display the codec profile in show_stream()
  avprobe: fix function prototype
  cosmetics: Fix indentation
  avprobe: changelog entry
  avprobe: update documentation
  avprobe: provide JSON output
  avprobe: output proper INI format
  avprobe: improve formatting
  rtmp: fix url parsing
  fate: document TARGET_EXEC and its usage

Conflicts:
	doc/APIchanges
	doc/fate.texi
	doc/ffprobe.texi
	ffprobe.c
	libavformat/version.h
	libavutil/avutil.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-05-26 22:37:37 +02:00

98 lines
2.9 KiB
C

/*
* RTP muxer chaining code
* Copyright (c) 2010 Martin Storsjo
*
* 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
*/
#include "avformat.h"
#include "avio_internal.h"
#include "rtpenc_chain.h"
#include "avio_internal.h"
#include "libavutil/opt.h"
int ff_rtp_chain_mux_open(AVFormatContext **out, AVFormatContext *s,
AVStream *st, URLContext *handle, int packet_size)
{
AVFormatContext *rtpctx = NULL;
int ret;
AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL);
uint8_t *rtpflags;
AVDictionary *opts = NULL;
if (!rtp_format) {
ret = AVERROR(ENOSYS);
goto fail;
}
/* Allocate an AVFormatContext for each output stream */
rtpctx = avformat_alloc_context();
if (!rtpctx) {
ret = AVERROR(ENOMEM);
goto fail;
}
rtpctx->oformat = rtp_format;
if (!avformat_new_stream(rtpctx, NULL)) {
ret = AVERROR(ENOMEM);
goto fail;
}
/* Pass the interrupt callback on */
rtpctx->interrupt_callback = s->interrupt_callback;
/* Copy the max delay setting; the rtp muxer reads this. */
rtpctx->max_delay = s->max_delay;
/* Copy other stream parameters. */
rtpctx->streams[0]->sample_aspect_ratio = st->sample_aspect_ratio;
rtpctx->flags |= s->flags & AVFMT_FLAG_MP4A_LATM;
if (av_opt_get(s, "rtpflags", AV_OPT_SEARCH_CHILDREN, &rtpflags) >= 0)
av_dict_set(&opts, "rtpflags", rtpflags, AV_DICT_DONT_STRDUP_VAL);
/* Set the synchronized start time. */
rtpctx->start_time_realtime = s->start_time_realtime;
avcodec_copy_context(rtpctx->streams[0]->codec, st->codec);
if (handle) {
ffio_fdopen(&rtpctx->pb, handle);
} else
ffio_open_dyn_packet_buf(&rtpctx->pb, packet_size);
ret = avformat_write_header(rtpctx, &opts);
av_dict_free(&opts);
if (ret) {
if (handle) {
avio_close(rtpctx->pb);
} else {
uint8_t *ptr;
avio_close_dyn_buf(rtpctx->pb, &ptr);
av_free(ptr);
}
avformat_free_context(rtpctx);
return ret;
}
*out = rtpctx;
return 0;
fail:
av_free(rtpctx);
if (handle)
ffurl_close(handle);
return ret;
}