* RTP muxer chaining code
* Copyright (c) 2010 Martin Storsjo
*
- * 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 "rtpenc_chain.h"
+#include "avio_internal.h"
+#include "rtp.h"
+#include "libavutil/opt.h"
-AVFormatContext *ff_rtp_chain_mux_open(AVFormatContext *s, AVStream *st,
- URLContext *handle, int packet_size)
+int ff_rtp_chain_mux_open(AVFormatContext **out, AVFormatContext *s,
+ AVStream *st, URLContext *handle, int packet_size,
+ int idx)
{
- AVFormatContext *rtpctx;
+ AVFormatContext *rtpctx = NULL;
int ret;
AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL);
+ uint8_t *rtpflags;
+ AVDictionary *opts = NULL;
- if (!rtp_format)
- return NULL;
+ if (!rtp_format) {
+ ret = AVERROR(ENOSYS);
+ goto fail;
+ }
/* Allocate an AVFormatContext for each output stream */
rtpctx = avformat_alloc_context();
- if (!rtpctx)
- return NULL;
+ if (!rtpctx) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
rtpctx->oformat = rtp_format;
- if (!av_new_stream(rtpctx, 0)) {
- av_free(rtpctx);
- return NULL;
+ 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;
- /* Remove the local codec, link to the original codec
- * context instead, to give the rtp muxer access to
- * codec parameters. */
- av_free(rtpctx->streams[0]->codec);
- rtpctx->streams[0]->codec = st->codec;
+ avcodec_copy_context(rtpctx->streams[0]->codec, st->codec);
+ rtpctx->streams[0]->time_base = st->time_base;
if (handle) {
- url_fdopen(&rtpctx->pb, handle);
+ ret = ffio_fdopen(&rtpctx->pb, handle);
+ if (ret < 0)
+ ffurl_close(handle);
} else
- url_open_dyn_packet_buf(&rtpctx->pb, packet_size);
- ret = av_write_header(rtpctx);
+ 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) {
- url_fclose(rtpctx->pb);
- } else {
- uint8_t *ptr;
- url_close_dyn_buf(rtpctx->pb, &ptr);
- av_free(ptr);
+ if (handle && rtpctx->pb) {
+ avio_close(rtpctx->pb);
+ } else if (rtpctx->pb) {
+ ffio_free_dyn_buf(&rtpctx->pb);
}
- av_free(rtpctx->streams[0]->info);
- av_free(rtpctx->streams[0]);
- av_free(rtpctx);
- return NULL;
+ avformat_free_context(rtpctx);
+ return ret;
}
- /* Copy the RTP AVStream timebase back to the original AVStream */
- st->time_base = rtpctx->streams[0]->time_base;
- return rtpctx;
-}
+ *out = rtpctx;
+ return 0;
+fail:
+ av_free(rtpctx);
+ if (handle)
+ ffurl_close(handle);
+ return ret;
+}