[FFmpeg-trac] #3424(avcodec:reopened): JPEG Decoder fails to fail on CMYK JPEG file (detects as yuva444p)
FFmpeg
trac at avcodec.org
Mon Mar 22 07:46:52 EET 2021
#3424: JPEG Decoder fails to fail on CMYK JPEG file (detects as yuva444p)
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Reporter: dbuitenh | Owner:
Type: defect | Status: reopened
Priority: normal | Component: avcodec
Version: git-master | Resolution:
Keywords: mjpeg | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
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Changes (by Balling):
* status: closed => reopened
* resolution: duplicate =>
Comment:
This is CMYK. As mediainfo prints:
{{{
08A868 Component - C - 1 (0x1) - 1 (0x1) (3 bytes)
08A868 Ci - Component identifier: 67 (0x43)
08A869 Hi - Horizontal sampling factor: 1 (0x1) - (4 bits)
08A869 Vi - Vertical sampling factor: 1 (0x1) - (4 bits)
08A86A Tqi - Quantization table destination selector: 0 (0x00)
08A86B Component - M - 1 (0x1) - 1 (0x1) (3 bytes)
08A86B Ci - Component identifier: 77 (0x4D)
08A86C Hi - Horizontal sampling factor: 1 (0x1) - (4 bits)
08A86C Vi - Vertical sampling factor: 1 (0x1) - (4 bits)
08A86D Tqi - Quantization table destination selector: 0 (0x00)
08A86E Component - Y - 1 (0x1) - 1 (0x1) (3 bytes)
08A86E Ci - Component identifier: 89 (0x59)
08A86F Hi - Horizontal sampling factor: 1 (0x1) - (4 bits)
08A86F Vi - Vertical sampling factor: 1 (0x1) - (4 bits)
08A870 Tqi - Quantization table destination selector: 0 (0x00)
08A871 Component - K - 1 (0x1) - 1 (0x1) (3 bytes)
08A871 Ci - Component identifier: 75 (0x4B)
08A872 Hi - Horizontal sampling factor: 1 (0x1) - (4 bits)
08A872 Vi - Vertical sampling factor: 1 (0x1) - (4 bits)
08A873 Tqi - Quantization table destination selector: 0 (0x00)
}}}
On the other hand CMYK should not be signaled like that, it should be
signaled using APP14 marker. Whatever. Not a duplicate though.
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Ticket URL: <https://trac.ffmpeg.org/ticket/3424#comment:22>
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