#11331: X265 HEVC Alpha transparency support
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Reporter: Mista_D | Owner: (none)
Type: sponsoring | Status: new
request |
Priority: wish | Component: avcodec
Version: git-master | Resolution:
Keywords: alpha x265 | Blocked By:
hevc |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by jeeb):
As noted on IRC, the preferred path for decoding alpha in HEVC is to look
at how the MV-HEVC work has enabled `nuh_layer_id` >0 handling, and
extending the native HEVC decoder in such manner (there should be a SEI
message describing the layer as alpha layer, and then a separate video
stream contained in packets marked with that layer).
For encoding it would currently indeed be one of the external encoders
whose wrapper would have to be extended as there is no internal encoder
for HEVC.
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Ticket URL: <https://trac.ffmpeg.org/ticket/11331#comment:3>
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