libavformat: Set the default for the max_delay option to -1

Make the muxers/demuxers that use the field handle the default
-1 in the same way as 0.

This allows distinguishing an intentionally set 0 from the default
value where the user hasn't set it.

Signed-off-by: Martin Storsjö <martin@martin.st>

1 files changed, 6 insertions, 0 deletions

diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index 56deed3b3a..7afd106cfb 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -1426,6 +1426,9 @@ int ff_rtsp_connect(AVFormatContext *s)
     if (!ff_network_init())
         return AVERROR(EIO);
 
+    if (s->max_delay < 0) /* Not set by the caller */
+        s->max_delay = 0;
+
     rt->control_transport = RTSP_MODE_PLAIN;
     if (rt->lower_transport_mask & (1 << RTSP_LOWER_TRANSPORT_HTTP)) {
         rt->lower_transport_mask = 1 << RTSP_LOWER_TRANSPORT_TCP;
@@ -1866,6 +1869,9 @@ static int sdp_read_header(AVFormatContext *s)
     if (!ff_network_init())
         return AVERROR(EIO);
 
+    if (s->max_delay < 0) /* Not set by the caller */
+        s->max_delay = 0;
+
     /* read the whole sdp file */
     /* XXX: better loading */
     content = av_malloc(SDP_MAX_SIZE);