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added rtp port range support 

Originally committed as revision 792 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard 2002-07-24 17:40:26 +00:00
parent 5188559986
commit 85fb7b3490
2 changed files with 27 additions and 6 deletions
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29
libav/rtsp.c
View File

@ -47,6 +47,10 @@ int rtsp_abort_req = 0;
changing this variable */
int rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP) | (1 << RTSP_PROTOCOL_RTP_UDP) | (1 << RTSP_PROTOCOL_RTP_UDP_MULTICAST);
/* if non zero, then set a range for RTP ports */
int rtsp_rtp_port_min = 0;
int rtsp_rtp_port_max = 0;
FFRTSPCallback *ff_rtsp_callback = NULL;
static int rtsp_probe(AVProbeData *p)
@ -486,8 +490,8 @@ static int rtsp_read_header(AVFormatContext *s,
/* XXX: we assume the same server is used for the control of each
RTSP stream */
for(i=0;i<s->nb_streams;i++) {
AVInputFormat *fmt;
char transport[2048];
AVInputFormat *fmt;
st = s->streams[i];
rtsp_st = st->priv_data;
@ -497,12 +501,27 @@ static int rtsp_read_header(AVFormatContext *s,
/* RTP/UDP */
if (protocol_mask & (1 << RTSP_PROTOCOL_RTP_UDP)) {
fmt = &rtp_demux;
if (av_open_input_file(&rtsp_st->ic, "rtp://", fmt, 0, NULL) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
char buf[256];
int j;
/* first try in specified port range */
if (rtsp_rtp_port_min != 0) {
for(j=rtsp_rtp_port_min;j<=rtsp_rtp_port_max;j++) {
snprintf(buf, sizeof(buf), "rtp://?localport=%d", j);
if (!av_open_input_file(&rtsp_st->ic, buf,
&rtp_demux, 0, NULL))
goto rtp_opened;
}
}
/* then try on any port */
if (av_open_input_file(&rtsp_st->ic, "rtp://",
&rtp_demux, 0, NULL) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
rtp_opened:
port = rtp_get_local_port(url_fileno(&rtsp_st->ic->pb));
if (transport[0] != '\0')
pstrcat(transport, sizeof(transport), ",");

2
libav/rtsp.h
View File

@ -79,6 +79,8 @@ void rtsp_parse_line(RTSPHeader *reply, const char *buf);
extern int rtsp_abort_req;
extern int rtsp_default_protocols;
extern int rtsp_rtp_port_min;
extern int rtsp_rtp_port_max;
extern FFRTSPCallback *ff_rtsp_callback;
#endif /* RTSP_H */