#8930: Pixel format 0x21112100 bits:8 is not implemented.
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Reporter: ikorolev72 | Owner:
Type: enhancement | Status: open
Priority: wish | Component: avcodec
Version: git-master | Resolution:
Keywords: mjpeg | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
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Comment (by Balling):
So this file means that:
0x21 11 21 00
First component is Horizontal sampling factor 2, Vertical sampling factor
1,
Second component is Horizontal sampling factor 1, Vertical sampling factor
1,
Third component is Horizontal sampling factor 2, Vertical sampling factor
1.
No 4th component.
So there is no vertical sampling? But Cb is preserved? Interesting.
From mediainfo:
{{{
0A3 Nf - Number of image components in frame: 3 (0x03)
0A4 Component - 1 (0x1) - 2 (0x2) - 1 (0x1) (3 bytes)
0A4 Ci - Component identifier: 1 (0x01)
0A5 Hi - Horizontal sampling factor: 2 (0x2) - (4 bits)
0A5 Vi - Vertical sampling factor: 1 (0x1) - (4 bits)
0A6 Tqi - Quantization table destination selector: 0 (0x00)
0A7 Component - 2 (0x2) - 1 (0x1) - 1 (0x1) (3 bytes)
0A7 Ci - Component identifier: 2 (0x02)
0A8 Hi - Horizontal sampling factor: 1 (0x1) - (4 bits)
0A8 Vi - Vertical sampling factor: 1 (0x1) - (4 bits)
0A9 Tqi - Quantization table destination selector: 1 (0x01)
0AA Component - 3 (0x3) - 2 (0x2) - 1 (0x1) (3 bytes)
0AA Ci - Component identifier: 3 (0x03)
0AB Hi - Horizontal sampling factor: 2 (0x2) - (4 bits)
0AB Vi - Vertical sampling factor: 1 (0x1) - (4 bits)
0AC Tqi - Quantization table destination selector: 1 (0x01)
}}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/8930#comment:2>
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