#9598: Wrong Chroma Location (Type 2, top left) for XDCAM Files (Type 0, left)
in
FFProbe
-------------------------------------+-------------------------------------
Reporter: FranceBB | Owner: (none)
Type: defect | Status: new
Priority: normal | Component: ffprobe
Version: git-master | Resolution:
Keywords: | Blocked By:
ChromaLocation |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by Hendrik):
If the chroma plane is both vertically and horizontally aligned with the
Luma plane, which MPEG-2 4:2:2 is, then "topleft" actually seems like the
correct value - because it indicates the position of the first chroma
sample, as per the ffmpeg documentation of AVChromaLocation.
You could even argue that for 4:2:2 both "left" and "topleft" are supposed
to be handled identically, due to the absence of vertical subsampling, so
in practice it would make no difference. The only reason h264 would result
in a different value is that h264 actually conveys that information, while
mpeg2 does not.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/9598#comment:6>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
_______________________________________________
FFmpeg-trac mailing list
[email protected]
https://ffmpeg.org/mailman/listinfo/ffmpeg-trac
To unsubscribe, visit link above, or email
[email protected] with subject "unsubscribe".
