[FFmpeg-cvslog] avformat/hls: reduce default max reload to 3

[Michael Niedermayer]

ffmpeg | branch: release/4.4 | Michael Niedermayer <michael at niedermayer.cc> | Mon May 15 02:05:45 2023 +0200| [95a905752e60563d4973ef52f2be541b4fb5f1d7] | committer: Michael Niedermayer

avformat/hls: reduce default max reload to 3

The 1000 did result in the appearance of a never ending reload loop

The RFC mandates that "If the client reloads a Playlist file and finds that it has not
changed, then it MUST wait for a period of one-half the target
duration before retrying." and if it has changed
"the client MUST wait for at least the target duration before attempting to reload the
Playlist file again"

Trying to reload 3 times seems a better default than 1000 given these
durations

Issue found by: Сергей Колесников
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 5f810435c2a6d985fabd9e6c025e0da0c99c39a9)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=95a905752e60563d4973ef52f2be541b4fb5f1d7
---

 libavformat/hls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/hls.c b/libavformat/hls.c
index e17cb23897..1b9f7d9e12 100644
--- a/libavformat/hls.c
+++ b/libavformat/hls.c
@@ -2397,7 +2397,7 @@ static const AVOption hls_options[] = {
         {.str = "3gp,aac,avi,ac3,eac3,flac,mkv,m3u8,m4a,m4s,m4v,mpg,mov,mp2,mp3,mp4,mpeg,mpegts,ogg,ogv,oga,ts,vob,wav"},
         INT_MIN, INT_MAX, FLAGS},
     {"max_reload", "Maximum number of times a insufficient list is attempted to be reloaded",
-        OFFSET(max_reload), AV_OPT_TYPE_INT, {.i64 = 1000}, 0, INT_MAX, FLAGS},
+        OFFSET(max_reload), AV_OPT_TYPE_INT, {.i64 = 3}, 0, INT_MAX, FLAGS},
     {"m3u8_hold_counters", "The maximum number of times to load m3u8 when it refreshes without new segments",
         OFFSET(m3u8_hold_counters), AV_OPT_TYPE_INT, {.i64 = 1000}, 0, INT_MAX, FLAGS},
     {"http_persistent", "Use persistent HTTP connections",