mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
107 lines
3.2 KiB
107 lines
3.2 KiB
/* |
|
* RTP muxer chaining code |
|
* Copyright (c) 2010 Martin Storsjo |
|
* |
|
* This file is part of Libav. |
|
* |
|
* 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. |
|
* |
|
* 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 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 "rtpenc_chain.h" |
|
#include "avio_internal.h" |
|
#include "rtp.h" |
|
#include "libavutil/opt.h" |
|
|
|
int ff_rtp_chain_mux_open(AVFormatContext **out, AVFormatContext *s, |
|
AVStream *st, URLContext *handle, int packet_size, |
|
int idx) |
|
{ |
|
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; |
|
/* Get the payload type from the codec */ |
|
if (st->id < RTP_PT_PRIVATE) |
|
rtpctx->streams[0]->id = |
|
ff_rtp_get_payload_type(s, st->codec, idx); |
|
else |
|
rtpctx->streams[0]->id = st->id; |
|
|
|
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) { |
|
ret = ffio_fdopen(&rtpctx->pb, handle); |
|
if (ret < 0) |
|
ffurl_close(handle); |
|
} else |
|
ret = ffio_open_dyn_packet_buf(&rtpctx->pb, packet_size); |
|
if (!ret) |
|
ret = avformat_write_header(rtpctx, &opts); |
|
av_dict_free(&opts); |
|
|
|
if (ret) { |
|
if (handle && rtpctx->pb) { |
|
avio_close(rtpctx->pb); |
|
} else if (rtpctx->pb) { |
|
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; |
|
}
|
|
|