#11045: vp9 in mp4 does not maintain transparency (yuva420p)
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Reporter: Jozef | Owner: (none)
Chutka |
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: 7.0 | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by mkver):
The alpha is a separate video bitstream that is independently encoded and
exported via Matroska blockadditional side data. And the mp4 muxer
completely ignores the latter; in other words, our mp4 muxer does not
support vp9 with alpha.
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Ticket URL: <https://trac.ffmpeg.org/ticket/11045#comment:1>
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