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vc1: handle CLOSED_ENTRY.

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When CLOSED_ENTRY == 0, and if the B pictures that follow an entry-point
lack a reference anchor picture, these B pictures shall be discarded.

https://bugs.freedesktop.org/show_bug.cgi?id=59505
This commit is contained in:
Gwenole Beauchesne 2013-01-23 11:11:25 +01:00
parent ee181d1b85
commit 3eeff1786a
1 changed files with 5 additions and 1 deletions
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6
gst-libs/gst/vaapi/gstvaapidecoder_vc1.c
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@ -787,7 +787,11 @@ fill_picture(GstVaapiDecoderVC1 *decoder, GstVaapiPicture *picture)
case GST_VAAPI_PICTURE_TYPE_B: case GST_VAAPI_PICTURE_TYPE_B:
if (next_picture) if (next_picture)
pic_param->backward_reference_picture = next_picture->surface_id; pic_param->backward_reference_picture = next_picture->surface_id;
// fall-through if (prev_picture)
pic_param->forward_reference_picture = prev_picture->surface_id;
else if (!priv->closed_entry)
GST_VAAPI_PICTURE_FLAG_SET(picture, GST_VAAPI_PICTURE_FLAG_SKIPPED);
break;
case GST_VAAPI_PICTURE_TYPE_P: case GST_VAAPI_PICTURE_TYPE_P:
if (prev_picture) if (prev_picture)
pic_param->forward_reference_picture = prev_picture->surface_id; pic_param->forward_reference_picture = prev_picture->surface_id;