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videoparse: Fix framesize calculation

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When the framesize is not specified, we try and calculate a size from
the strides and offset information. This was done with the sum of
offsets + the size of the last frame. That is just wrong method. We also
need to account for video meta that may be flipping two planes. An
example is if you convert I420 to YV12 by flipping the two last offsets.

https://bugzilla.gnome.org/show_bug.cgi?id=760270
This commit is contained in:
Nicolas Dufresne 2016-01-28 11:56:36 -05:00
parent 80c72169c6
commit acb7205f91
1 changed files with 6 additions and 3 deletions
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9
gst/rawparse/gstvideoparse.c
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@ -467,10 +467,13 @@ gst_video_parse_update_info (GstVideoParse * vp)
if (update_size) {
framesize = 0;
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (info); i++)
framesize += info->offset[i];
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (info); i++) {
gint planesize = info->offset[i];
planesize += gst_video_parse_get_plane_size (info, i);
framesize += gst_video_parse_get_plane_size (info, i - 1);
if (planesize > framesize)
framesize = planesize;
}
info->size = framesize;
}