From bc3d02fa88c4d1a45952da8d058f5667913627b9 Mon Sep 17 00:00:00 2001 From: Yu Xiaolei Date: Tue, 25 Nov 2014 16:35:29 +0800 Subject: [PATCH] lavf/avio: clarify the buffer parameter of avio_alloc_context Signed-off-by: Michael Niedermayer --- libavformat/avio.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/avio.h b/libavformat/avio.h index 86f754e2fb..b9b4017fb3 100644 --- a/libavformat/avio.h +++ b/libavformat/avio.h @@ -186,6 +186,9 @@ int avio_check(const char *url, int flags); * * @param buffer Memory block for input/output operations via AVIOContext. * The buffer must be allocated with av_malloc() and friends. + * It may be freed and replaced with a new buffer by libavformat. + * AVIOContext.buffer holds the buffer currently in use, + * which must be later freed with av_free(). * @param buffer_size The buffer size is very important for performance. * For protocols with fixed blocksize it should be set to this blocksize. * For others a typical size is a cache page, e.g. 4kb.