[FFmpeg-devel] [PATCH]fix seeking before beginning in h264 files

Michael Niedermayer michaelni
Mon Feb 4 20:34:35 CET 2008


On Mon, Feb 04, 2008 at 07:24:18PM +0100, Anton Khirnov wrote:
> Hi,
> now if you attempt to seek before the beginning of a h.264 video, you
> will remain where you are and current frame will get borked. This
> patch should fix it.
> 
> Anton Khirnov

> Index: libavformat/utils.c
> ===================================================================
> --- libavformat/utils.c	(revision 11862)
> +++ libavformat/utils.c	(working copy)
> @@ -1360,6 +1360,10 @@
>  
>      av_read_frame_flush(s);
>  
> +    /* fixes seeking before beginning in h264 */
> +    if(timestamp < 0)
> +        timestamp = 0;
> +

breaks seeking to negative timestamps -> rejected

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

Complexity theory is the science of finding the exact solution to an
approximation. Benchmarking OTOH is finding an approximation of the exact
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