On 2/6/2025 11:32 AM, James Almer wrote: > On 2/6/2025 11:06 AM, Zhao Zhili wrote: >> >> >>> On Feb 6, 2025, at 21:26, James Almer wrote: >>> >>> On 2/6/2025 12:50 AM, Zhao Zhili wrote: >>>> From: Zhao Zhili >>>> Signed-off-by: Zhao Zhili >>>> --- >>>>   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. Oh, nevermind, it looks like ffplay outputs yuv420p instead of yuva420p.