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

[elupus]

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);