#11541: Better warning for silently skipped color primaries meddling?
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Reporter: fmnijk | Owner: (none)
Type: enhancement | Status: new
Priority: normal | Component: avfilter
Version: git-master | Resolution:
Keywords: | Blocked By:
color_primaries |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 1 |
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Comment (by fmnijk):
Here's what I found after analyzing the debug logs with both libx264 and
av1_nvenc encoders using BT.2020:
1. **libx264 Encoder (Works Correctly)**:
- The scale filter selects `yuv444p10le` pixel format: `picking
yuv444p10le out of 15 ref:gbrapf16le alpha:1`
- Properly applies BT.2020 color space: `yuv444p10le(tv,
bt2020nc/unknown/linear, progressive)`
- Output maintains correct color space: `color_space: "bt2020nc"`
2. **av1_nvenc Encoder (Problem)**:
- The scale filter selects `rgba` pixel format: `picking rgba out of 17
ref:gbrapf16le alpha:1`
- No color space applied: `rgba(pc, gbr/unknown/linear, progressive)`
- Final output has incorrect color space: `color_space: "bt470bg"`
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Ticket URL: <https://trac.ffmpeg.org/ticket/11541#comment:9>
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