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Add a function rtsp_setup_output_streams for announcing the SDP

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and setting up the internal RTSPStream data structures when using
the RTSP code in muxer mode.

Originally committed as revision 21965 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Martin Storsjö 2010-02-22 15:56:18 +00:00
parent fd450a5177
commit 3e24c7701c
1 changed files with 62 additions and 0 deletions
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62
libavformat/rtsp.c
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@ -1349,6 +1349,54 @@ static int rtsp_setup_input_streams(AVFormatContext *s)
return 0;
}
static int rtsp_setup_output_streams(AVFormatContext *s)
{
RTSPState *rt = s->priv_data;
RTSPMessageHeader reply1, *reply = &reply1;
char cmd[1024];
int i;
char *sdp;
/* Announce the stream */
snprintf(cmd, sizeof(cmd),
"ANNOUNCE %s RTSP/1.0\r\n"
"Content-Type: application/sdp\r\n",
s->filename);
sdp = av_mallocz(8192);
if (sdp == NULL)
return AVERROR(ENOMEM);
if (avf_sdp_create(&s, 1, sdp, 8192)) {
av_free(sdp);
return AVERROR_INVALIDDATA;
}
av_log(s, AV_LOG_INFO, "SDP:\n%s\n", sdp);
rtsp_send_cmd_with_content(s, cmd, reply, NULL, sdp, strlen(sdp));
av_free(sdp);
if (reply->status_code != RTSP_STATUS_OK)
return AVERROR_INVALIDDATA;
/* Set up the RTSPStreams for each AVStream */
for (i = 0; i < s->nb_streams; i++) {
RTSPStream *rtsp_st;
AVStream *st = s->streams[i];
rtsp_st = av_mallocz(sizeof(RTSPStream));
if (!rtsp_st)
return AVERROR(ENOMEM);
dynarray_add(&rt->rtsp_streams, &rt->nb_rtsp_streams, rtsp_st);
st->priv_data = rtsp_st;
rtsp_st->stream_index = i;
av_strlcpy(rtsp_st->control_url, s->filename, sizeof(rtsp_st->control_url));
/* Note, this must match the relative uri set in the sdp content */
av_strlcatf(rtsp_st->control_url, sizeof(rtsp_st->control_url),
"/streamid=%d", i);
}
return 0;
}
static int rtsp_connect(AVFormatContext *s)
{
RTSPState *rt = s->priv_data;
@ -1406,6 +1454,17 @@ redirect:
if (!lower_transport_mask)
lower_transport_mask = (1 << RTSP_LOWER_TRANSPORT_NB) - 1;
if (s->oformat) {
/* Only UDP output is supported at the moment. */
lower_transport_mask &= 1 << RTSP_LOWER_TRANSPORT_UDP;
if (!lower_transport_mask) {
av_log(s, AV_LOG_ERROR, "Unsupported lower transport method, "
"only UDP is supported for output.\n");
err = AVERROR(EINVAL);
goto fail;
}
}
/* open the tcp connexion */
snprintf(tcpname, sizeof(tcpname), "tcp://%s:%d", host, port);
if (url_open(&rtsp_hd, tcpname, URL_RDWR) < 0) {
@ -1455,7 +1514,10 @@ redirect:
break;
}
if (s->iformat)
err = rtsp_setup_input_streams(s);
else
err = rtsp_setup_output_streams(s);
if (err)
goto fail;