[FFmpeg-devel] [PATCH] lavf/gif: correct the delay after the first frame.

[Paul B Mahol]

On 4/19/13, Clement Boesch <ubitux at gmail.com> wrote:
> To define accurately the delay between two frames, it is necessary to
> have both available. Before this commit, the first frame had a delay of
> 0; while in practice the problem is not visible in most situation, it is
> problematic with low frame rate and large scene change.
>
> This commit notably fixes output generated with commands such as:
>
>   ffmpeg -i big_buck_bunny_1080p_h264.mov
>      -vf "select='gt(scene,0.4)',scale=320:-1,setpts=N/TB
>      -frames:v 5 -y out.gif
>
> Also, to avoid odd loop delays, the N-1 delay is duplicated for the last
> frame.
> ---
>  libavformat/gif.c  | 38 +++++++++++++++++++++++++++++++++-----
>  tests/ref/lavf/gif |  4 ++--
>  2 files changed, 35 insertions(+), 7 deletions(-)
>

ok if works/tested