[FFmpeg-devel] [PATCH] libavformat/mov:the "stco" box parse no need return eof.

[Michael Niedermayer]

On Sun, Nov 19, 2017 at 10:00:29PM +0800, tiejun.peng wrote:
> if return eof, will cause to play the whole mp4 file fail.
> For example, currently the whole file will play fail
> when a few bytes missed in the "stco" box
> and the "stco" box is the last box of MP4 file,
> Actually the almost media frames can play success at most time.
> A few words missed in "stco" box and the other box data is full
> will not cause the whole mp4 file fail.
> 
> Signed-off-by: tiejun.peng <tiejun.peng at foxmail.com>
> ---
>  libavformat/mov.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/libavformat/mov.c b/libavformat/mov.c
> index 5c9f926..78b7bf7 100644
> --- a/libavformat/mov.c
> +++ b/libavformat/mov.c
> @@ -1989,9 +1989,6 @@ static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
>  
>      sc->chunk_count = i;
>  
> -    if (pb->eof_reached)
> -        return AVERROR_EOF;

The code should not silently accept a truncated stco as undamaged.
That way the user would have no way to know that the file is truncated

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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