[FFmpeg-devel] [PATCH] avformat/utils.c: allows av_read_frame to return after a timeout period.

ggarra13 at gmail.com ggarra13 at gmail.com
Sat Nov 30 01:52:15 EET 2019

From: Gonzalo Garramuño <ggarra13 at gmail.com>

Moved the check inside and at the end of the if (pktl) as per Michael Niedermayer's suggestion.
This patch is based on one from bsenftner at earthlink.net.

The hanging in av_read_frame can be reproduced with an rtmp stream that is aborted midway and ffplay (for example) playing that stream.
 libavformat/utils.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavformat/utils.c b/libavformat/utils.c
index 8196442dd1..653918d5a5 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -1836,6 +1836,11 @@ int av_read_frame(AVFormatContext *s, AVPacket *pkt)
                                                &s->internal->packet_buffer_end, pkt);
                 goto return_packet;
+            if (ff_check_interrupt(&s->interrupt_callback)) {
+                av_log(s, AV_LOG_DEBUG, "interrupted\n");
+                return AVERROR_EXIT;
+            }
         ret = read_frame_internal(s, pkt);

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