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Add "prefer_tcp" flag to "rtsp_flags"

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If set, and if TCP is available as RTSP RTP transport, then TCP will be
tried first as RTP transport.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Andrey Utkin 2014-03-04 15:43:59 +02:00 committed by Michael Niedermayer
parent 206167a295
commit bc764d786f
3 changed files with 8 additions and 0 deletions
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2
doc/protocols.texi
View File

@ -733,6 +733,8 @@ The following values are accepted:
Accept packets only from negotiated peer address and port.
@item listen
Act as a server, listening for an incoming connection.
@item prefer_tcp
Try TCP for RTP transport first, if TCP is available as RTSP RTP transport.
@end table
Default value is @samp{none}.

5
libavformat/rtsp.c
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@ -86,6 +86,7 @@ const AVOption ff_rtsp_options[] = {
{ "http", "HTTP tunneling", 0, AV_OPT_TYPE_CONST, {.i64 = (1 << RTSP_LOWER_TRANSPORT_HTTP)}, 0, 0, DEC, "rtsp_transport" },
RTSP_FLAG_OPTS("rtsp_flags", "set RTSP flags"),
{ "listen", "wait for incoming connections", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_LISTEN}, 0, 0, DEC, "rtsp_flags" },
{ "prefer_tcp", "try RTP via TCP first, if available", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_PREFER_TCP}, 0, 0, DEC|ENC, "rtsp_flags" },
RTSP_MEDIATYPE_OPTS("allowed_media_types", "set media types to accept from the server"),
{ "min_port", "set minimum local UDP port", OFFSET(rtp_port_min), AV_OPT_TYPE_INT, {.i64 = RTSP_RTP_PORT_MIN}, 0, 65535, DEC|ENC },
{ "max_port", "set maximum local UDP port", OFFSET(rtp_port_max), AV_OPT_TYPE_INT, {.i64 = RTSP_RTP_PORT_MAX}, 0, 65535, DEC|ENC },
@ -1766,6 +1767,10 @@ redirect:
int lower_transport = ff_log2_tab[lower_transport_mask &
~(lower_transport_mask - 1)];
if ((lower_transport_mask & (1 << RTSP_LOWER_TRANSPORT_TCP))
&& (rt->rtsp_flags & RTSP_FLAG_PREFER_TCP))
lower_transport = RTSP_LOWER_TRANSPORT_TCP;
err = ff_rtsp_make_setup_request(s, host, port, lower_transport,
rt->server_type == RTSP_SERVER_REAL ?
real_challenge : NULL);

1
libavformat/rtsp.h
View File

@ -413,6 +413,7 @@ typedef struct RTSPState {
#define RTSP_FLAG_CUSTOM_IO 0x4 /**< Do all IO via the AVIOContext. */
#define RTSP_FLAG_RTCP_TO_SOURCE 0x8 /**< Send RTCP packets to the source
address of received packets. */
#define RTSP_FLAG_PREFER_TCP 0x10 /**< Try RTP via TCP first if possible. */
typedef struct RTSPSource {
char addr[128]; /**< Source-specific multicast include source IP address (from SDP content) */