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theoradec: handle empty adapter

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Should not be empty but might be when we actually pass and decode the 0 packets
later.
This commit is contained in:
Wim Taymans 2013-03-31 18:28:09 +02:00
parent da673880eb
commit f15bc6835b
1 changed files with 7 additions and 5 deletions
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12
ext/theora/gsttheoradec.c
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@ -273,11 +273,13 @@ theora_dec_parse (GstVideoDecoder * decoder,
av = gst_adapter_available (adapter);
data = gst_adapter_map (adapter, 1);
/* check for keyframe; must not be header packet */
if (!(data[0] & 0x80) && (data[0] & 0x40) == 0)
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame);
gst_adapter_unmap (adapter);
if (av > 0) {
data = gst_adapter_map (adapter, 1);
/* check for keyframe; must not be header packet */
if (!(data[0] & 0x80) && (data[0] & 0x40) == 0)
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame);
gst_adapter_unmap (adapter);
}
/* and pass along all */
gst_video_decoder_add_to_frame (decoder, av);