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, 3 insertions, 0 deletions

diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
index 493ae2eb6f..a594ca257f 100644
--- a/libavformat/mpegtsenc.c
+++ b/libavformat/mpegtsenc.c
@@ -460,6 +460,9 @@ static int mpegts_write_header(AVFormatContext *s)
     const char *provider_name;
     int *pids;
 
+    if (s->max_delay < 0) /* Not set by the caller */
+        s->max_delay = 0;
+
     // round up to a whole number of TS packets
     ts->pes_payload_size = (ts->pes_payload_size + 14 + 183) / 184 * 184 - 14;