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authorFabrice Bellard <fabrice@bellard.org>2002-07-24 17:40:26 +0000
committerFabrice Bellard <fabrice@bellard.org>2002-07-24 17:40:26 +0000
commit85fb7b3490c158786cf68b3dd5fa189fc9221daa (patch)
treedb064b145ab1311c27a3a81adfae9950332c7e94 /libav
parent518855998601da79ead0c5c2e4767872cd66f8f1 (diff)
downloadffmpeg-85fb7b3490c158786cf68b3dd5fa189fc9221daa.tar.gz
added rtp port range support
Originally committed as revision 792 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libav')
-rw-r--r--libav/rtsp.c31
-rw-r--r--libav/rtsp.h2
2 files changed, 27 insertions, 6 deletions
diff --git a/libav/rtsp.c b/libav/rtsp.c
index 8fa813916a..53c8514a62 100644
--- a/libav/rtsp.c
+++ b/libav/rtsp.c
@@ -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), ",");
diff --git a/libav/rtsp.h b/libav/rtsp.h
index f683bf338b..3dd231571e 100644
--- a/libav/rtsp.h
+++ b/libav/rtsp.h
@@ -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 */