[FFmpeg-devel] [PATCH] In av_close_input_stream(), flush the packet queue before to actually close the stream.

[Stefano Sabatini]

This way the flushed packets can still reference the still unclosed
format context.

In particular this fixes a spurious error issued when closing the
video4linux2 buffer in mmap_release_buffer(), which tries to access
the file descriptor of an already closed file.
---
 libavformat/utils.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavformat/utils.c b/libavformat/utils.c
index e1928c4..fb93e3b 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2544,6 +2544,7 @@ void av_close_input_stream(AVFormatContext *s)
     int i;
     AVStream *st;
 
+    flush_packet_queue(s);
     if (s->iformat->read_close)
         s->iformat->read_close(s);
     for(i=0;i<s->nb_streams;i++) {
@@ -2575,7 +2576,6 @@ void av_close_input_stream(AVFormatContext *s)
         av_freep(&s->programs[i]);
     }
     av_freep(&s->programs);
-    flush_packet_queue(s);
     av_freep(&s->priv_data);
     while(s->nb_chapters--) {
 #if FF_API_OLD_METADATA
-- 
1.7.2.3