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Expose max_packet_size from the rtp protocol 

Originally committed as revision 12839 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Luca Barbato 2008-04-15 19:27:39 +00:00
parent e6cfd8fffb
commit fc9b22dd2e
1 changed files with 13 additions and 4 deletions
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17
libavformat/rtpproto.c
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@ -84,25 +84,29 @@ static void url_add_option(char *buf, int buf_size, const char *fmt, ...)
static void build_udp_url(char *buf, int buf_size,
const char *hostname, int port,
int local_port, int ttl)
int local_port, int ttl,
int max_packet_size)
{
snprintf(buf, buf_size, "udp://%s:%d", hostname, port);
if (local_port >= 0)
url_add_option(buf, buf_size, "localport=%d", local_port);
if (ttl >= 0)
url_add_option(buf, buf_size, "ttl=%d", ttl);
if (max_packet_size >=0)
url_add_option(buf, buf_size, "pkt_size=%d", max_packet_size);
}
/*
* url syntax: rtp://host:port[?option=val...]
* option: 'ttl=n' : set the ttl value (for multicast only)
* 'localport=n' : set the local port to n
* 'pkt_size=n' : set max packet size
*
*/
static int rtp_open(URLContext *h, const char *uri, int flags)
{
RTPContext *s;
int port, is_output, ttl, local_port;
int port, is_output, ttl, local_port, max_packet_size;
char hostname[256];
char buf[1024];
char path[1024];
@ -120,6 +124,8 @@ static int rtp_open(URLContext *h, const char *uri, int flags)
/* extract parameters */
ttl = -1;
local_port = -1;
max_packet_size = -1;
p = strchr(uri, '?');
if (p) {
if (find_info_tag(buf, sizeof(buf), "ttl", p)) {
@ -128,10 +134,13 @@ static int rtp_open(URLContext *h, const char *uri, int flags)
if (find_info_tag(buf, sizeof(buf), "localport", p)) {
local_port = strtol(buf, NULL, 10);
}
if (find_info_tag(buf, sizeof(buf), "pkt_size", p)) {
max_packet_size = strtol(buf, NULL, 10);
}
}
build_udp_url(buf, sizeof(buf),
hostname, port, local_port, ttl);
hostname, port, local_port, ttl, max_packet_size);
if (url_open(&s->rtp_hd, buf, flags) < 0)
goto fail;
local_port = udp_get_local_port(s->rtp_hd);
@ -140,7 +149,7 @@ static int rtp_open(URLContext *h, const char *uri, int flags)
/* well, should suppress localport in path */
build_udp_url(buf, sizeof(buf),
hostname, port + 1, local_port + 1, ttl);
hostname, port + 1, local_port + 1, ttl, max_packet_size);
if (url_open(&s->rtcp_hd, buf, flags) < 0)
goto fail;