Re: [FFmpeg-devel] [PATCH v4 3/3] avcodec/hevc: Add alpha layer support

[James Almer <jamrial@gmail.com>]

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On 2/6/2025 11:06 AM, Zhao Zhili wrote:
> 
> 
>> On Feb 6, 2025, at 21:26, James Almer <jamrial@gmail.com> wrote:
>>
>> On 2/6/2025 12:50 AM, Zhao Zhili wrote:
>>> From: Zhao Zhili <zhilizhao@tencent.com>
>>> Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
>>> ---
>>>   libavcodec/hevc/hevcdec.c | 72 ++++++++++++++++++++++++++++++++++++++-
>>>   libavcodec/hevc/hevcdec.h |  2 ++
>>>   libavcodec/hevc/refs.c    | 11 +++++-
>>>   3 files changed, 83 insertions(+), 2 deletions(-)
>>
>> Can you please share the sample from the other day without requiring to request for access to your google drive?
> 
> Sorry I have modified the permission but forgot to reply.
> 
> https://drive.google.com/file/d/1SK6gnMNlWODeTySpetNAKgNeqt69DQDz/view?usp=sharing

Thanks. That sample however doesn't really showcase the alpha layer 
doing anything. Can't you generate a sample with videotoolbox out of 
some apng, webp or similar source with alpha where the transparency is 
noticeable? The FATE suite has a couple.


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