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vaapi: return early from ff_vaapi_render_picture() without picture 

Fixes an assertion when called on uninitialized frame. Spotted after
seeking in vlc.
Fixes ticket #2461.

Tested-by: Timo
Reviewed-by: Joakim Plate
Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at>
This commit is contained in:
Janne Grunau 2013-06-18 01:56:06 +02:00 committed by Carl Eugen Hoyos
parent 28bf0d94aa
commit 2ee380aefb
1 changed files with 3 additions and 0 deletions
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libavcodec/vaapi.c
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@ -46,6 +46,9 @@ int ff_vaapi_render_picture(struct vaapi_context *vactx, VASurfaceID surface)
VABufferID va_buffers[3];
unsigned int n_va_buffers = 0;
if (!vactx->pic_param_buf_id)
return 0;
vaUnmapBuffer(vactx->display, vactx->pic_param_buf_id);
va_buffers[n_va_buffers++] = vactx->pic_param_buf_id;