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Split out input-specific parts of rtsp_read_header() into its own, new,

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function (rtsp_setup_input_streams()), as preparation for the upcoming
RTSP muxer.

Patch by Martin Storsjö <$firstname $firstname st>.

Originally committed as revision 21914 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Martin Storsjö 2010-02-19 23:21:44 +00:00 committed by Ronald S. Bultje
parent 30ff7c5cbc
commit e23d195deb
1 changed files with 42 additions and 33 deletions
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75
libavformat/rtsp.c
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@ -1256,6 +1256,45 @@ static int rtsp_read_play(AVFormatContext *s)
return 0;
}
static int rtsp_setup_input_streams(AVFormatContext *s)
{
RTSPState *rt = s->priv_data;
RTSPMessageHeader reply1, *reply = &reply1;
char cmd[1024];
unsigned char *content = NULL;
int ret;
/* describe the stream */
snprintf(cmd, sizeof(cmd),
"DESCRIBE %s RTSP/1.0\r\n"
"Accept: application/sdp\r\n",
s->filename);
if (rt->server_type == RTSP_SERVER_REAL) {
/**
* The Require: attribute is needed for proper streaming from
* Realmedia servers.
*/
av_strlcat(cmd,
"Require: com.real.retain-entity-for-setup\r\n",
sizeof(cmd));
}
rtsp_send_cmd(s, cmd, reply, &content);
if (!content)
return AVERROR_INVALIDDATA;
if (reply->status_code != RTSP_STATUS_OK) {
av_freep(&content);
return AVERROR_INVALIDDATA;
}
/* now we got the SDP description, we parse it */
ret = sdp_parse(s, (const char *)content);
av_freep(&content);
if (ret < 0)
return AVERROR_INVALIDDATA;
return 0;
}
static int rtsp_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
@ -1263,9 +1302,8 @@ static int rtsp_read_header(AVFormatContext *s,
char host[1024], path[1024], tcpname[1024], cmd[2048], auth[128];
char *option_list, *option, *filename;
URLContext *rtsp_hd;
int port, ret, err;
int port, err;
RTSPMessageHeader reply1, *reply = &reply1;
unsigned char *content = NULL;
int lower_transport_mask = 0;
char real_challenge[64];
redirect:
@ -1364,37 +1402,9 @@ redirect:
break;
}
/* describe the stream */
snprintf(cmd, sizeof(cmd),
"DESCRIBE %s RTSP/1.0\r\n"
"Accept: application/sdp\r\n",
s->filename);
if (rt->server_type == RTSP_SERVER_REAL) {
/**
* The Require: attribute is needed for proper streaming from
* Realmedia servers.
*/
av_strlcat(cmd,
"Require: com.real.retain-entity-for-setup\r\n",
sizeof(cmd));
}
rtsp_send_cmd(s, cmd, reply, &content);
if (!content) {
err = AVERROR_INVALIDDATA;
err = rtsp_setup_input_streams(s);
if (err)
goto fail;
}
if (reply->status_code != RTSP_STATUS_OK) {
err = AVERROR_INVALIDDATA;
goto fail;
}
/* now we got the SDP description, we parse it */
ret = sdp_parse(s, (const char *)content);
av_freep(&content);
if (ret < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
do {
int lower_transport = ff_log2_tab[lower_transport_mask &
@ -1425,7 +1435,6 @@ redirect:
return 0;
fail:
rtsp_close_streams(s);
av_freep(&content);
url_close(rt->rtsp_hd);
if (reply->status_code >=300 && reply->status_code < 400) {
av_strlcpy(s->filename, reply->location, sizeof(s->filename));