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mpeg2: fix invalid interlaced frame in progressive sequence.

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Some streams, badly constructed, could have signaled an interlaced
frame while the sequence was meant to be progressive. Warn and force
frame to be progressive in this case.
This commit is contained in:
Gwenole Beauchesne 2012-03-28 19:15:47 +02:00
parent 7a9410f826
commit b003a2bab2
1 changed files with 5 additions and 0 deletions
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5
gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c
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@ -577,6 +577,11 @@ decode_picture_ext(GstVaapiDecoderMpeg2 *decoder, guchar *buf, guint buf_size)
}
priv->has_pic_ext = TRUE;
if (priv->progressive_sequence && !pic_ext->progressive_frame) {
GST_WARNING("invalid interlaced frame in progressive sequence, fixing");
pic_ext->progressive_frame = 1;
}
if (pic_ext->picture_structure == 0 ||
(pic_ext->progressive_frame &&
pic_ext->picture_structure != GST_MPEG_VIDEO_PICTURE_STRUCTURE_FRAME)) {