From: Jan Sebechlebsky <sebechlebsky...@gmail.com>
Muxing might be running in a separate thread if actual muxer is
run inside of fifo pseudo-muxer. Callback should be therefore
thread-safe.
Signed-off-by: Jan Sebechlebsky <sebechlebsky...@gmail.com>
---
libavformat/avformat.h | 2 +-
libavformat/avio.h | 2 ++
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 79c2511..8550dca 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -1564,7 +1564,7 @@ typedef struct AVFormatContext {
* muxing: set by the user before avformat_write_header()
* (mainly useful for AVFMT_NOFILE formats). The callback
* should also be passed to avio_open2() if it's used to
- * open the file.
+ * open the file. The callback must be thread-safe.
*/
AVIOInterruptCB interrupt_callback;
diff --git a/libavformat/avio.h b/libavformat/avio.h
index b1ce1d1..b5d1396 100644
--- a/libavformat/avio.h
+++ b/libavformat/avio.h
@@ -43,6 +43,8 @@
* opaque as parameter. If the callback returns 1, the
* blocking operation will be aborted.
*
+ * If the callback is used in muxing context, it has to be thread-safe.
+ *
* No members can be added to this struct without a major bump, if
* new elements have been added after this struct in AVFormatContext
* or AVIOContext.
--
1.9.1
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
