#4168: defect : mpeg2 interlaced yuv420 chroma incorrectly decoded
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Reporter: Cyril | Owner: (none)
Lambin |
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Cyril Lambin):
Replying to [comment:37 Balling]:
> Finally
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231013142205.60658-1-ffm...@haasn.xyz/
About time :)
I stopped counting the quantity of video archives that are plagged with
this bug since ffmpeg is used in so many software.
One recent example, a very rare archive by Daft Punk recently posted on
their YouTube channel:
https://shelter.moe/@fenarinarsa/111234979232590645
On my side, I do all video archives in 4:2:2 chroma (MP4 studio) as a
workaround to this bug, else there's a 99.99% chance it gets badly decoded
for deinterlacing/recompression.
The only software I know so far that compensate for this bug by relocating
chroma data after decoding if it detects 4:2:0 video is the QTGMC filter
for AviSynth.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4168#comment:38>
FFmpeg <https://ffmpeg.org>
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