rtpenc_chain: Pass the rtpflags options through to the chained muxer
[libav.git] / libavformat / rtpenc_chain.c
1 /*
2 * RTP muxer chaining code
3 * Copyright (c) 2010 Martin Storsjo
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "avformat.h"
23 #include "avio_internal.h"
24 #include "rtpenc_chain.h"
25 #include "avio_internal.h"
26 #include "libavutil/opt.h"
27
28 AVFormatContext *ff_rtp_chain_mux_open(AVFormatContext *s, AVStream *st,
29 URLContext *handle, int packet_size)
30 {
31 AVFormatContext *rtpctx;
32 int ret;
33 AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL);
34
35 if (!rtp_format)
36 return NULL;
37
38 /* Allocate an AVFormatContext for each output stream */
39 rtpctx = avformat_alloc_context();
40 if (!rtpctx)
41 return NULL;
42
43 rtpctx->oformat = rtp_format;
44 if (!av_new_stream(rtpctx, 0)) {
45 av_free(rtpctx);
46 return NULL;
47 }
48 /* Copy the max delay setting; the rtp muxer reads this. */
49 rtpctx->max_delay = s->max_delay;
50 /* Copy other stream parameters. */
51 rtpctx->streams[0]->sample_aspect_ratio = st->sample_aspect_ratio;
52
53 av_set_parameters(rtpctx, NULL);
54 /* Copy the rtpflags values straight through */
55 if (s->oformat->priv_class &&
56 av_find_opt(s->priv_data, "rtpflags", NULL, 0, 0))
57 av_set_int(rtpctx->priv_data, "rtpflags",
58 av_get_int(s->priv_data, "rtpflags", NULL));
59
60 /* Set the synchronized start time. */
61 rtpctx->start_time_realtime = s->start_time_realtime;
62
63 avcodec_copy_context(rtpctx->streams[0]->codec, st->codec);
64
65 if (handle) {
66 ffio_fdopen(&rtpctx->pb, handle);
67 } else
68 ffio_open_dyn_packet_buf(&rtpctx->pb, packet_size);
69 ret = av_write_header(rtpctx);
70
71 if (ret) {
72 if (handle) {
73 avio_close(rtpctx->pb);
74 } else {
75 uint8_t *ptr;
76 avio_close_dyn_buf(rtpctx->pb, &ptr);
77 av_free(ptr);
78 }
79 avformat_free_context(rtpctx);
80 return NULL;
81 }
82
83 return rtpctx;
84 }
85