[FFmpeg-cvslog] Don't mark generated dummy frame output from mpeg1/2 decoder as keyframe.

Ivan Kalvachev ikalvachev at gmail.com
Sat Jul 16 16:47:25 CEST 2011


On 7/16/11, elupus <git at videolan.org> wrote:
> ffmpeg | branch: master | elupus <elupus at xbmc.org> | Fri Apr 22 15:42:51
> 2011 +0200| [900321b08c95bd42e6db53864bfffbe48d6019da] | committer: Joakim
> Plate
>
> Don't mark generated dummy frame output from mpeg1/2 decoder as keyframe.
>
> We use this flag to tell when to assume decoded data is free
> from artifacts after a seek. The mpeg1/2 decoder will generate
> a dummy frame if decoding is started on a non keyframe. This
> will sadly be output from decoder to player and displayed
> as a gray screen.
>
>> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=900321b08c95bd42e6db53864bfffbe48d6019da
> ---
>
>  libavcodec/mpegvideo.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
> index d3540c9..3749fd9 100644
> --- a/libavcodec/mpegvideo.c
> +++ b/libavcodec/mpegvideo.c
> @@ -1114,6 +1114,7 @@ int MPV_frame_start(MpegEncContext *s, AVCodecContext
> *avctx)
>              /* Allocate a dummy frame */
>              i= ff_find_unused_picture(s, 0);
>              s->last_picture_ptr= &s->picture[i];
> +            s->last_picture_ptr->key_frame = 0;
>              if(ff_alloc_picture(s, s->last_picture_ptr, 0) < 0)
>                  return -1;
>              ff_thread_report_progress((AVFrame*)s->last_picture_ptr,
> INT_MAX, 0);
> @@ -1123,6 +1124,7 @@ int MPV_frame_start(MpegEncContext *s, AVCodecContext
> *avctx)
>              /* Allocate a dummy frame */
>              i= ff_find_unused_picture(s, 0);
>              s->next_picture_ptr= &s->picture[i];
> +            s->next_picture_ptr->key_frame = 0;
>              if(ff_alloc_picture(s, s->next_picture_ptr, 0) < 0)
>                  return -1;
>              ff_thread_report_progress((AVFrame*)s->next_picture_ptr,
> INT_MAX, 0);

This breaks compilation thanks to the recent Diego's "cleanup".

Change "->key_frame" to "->f.key_frame"


More information about the ffmpeg-cvslog mailing list