On Fri, May 15, 2026 at 4:36 PM Andrea paz <gamberucci.andrea@gmail.com> wrote:
I successfully compiled CinGG using only these two patches. Thank you.
After downloading them from the site you recommended, I tried uploading two videos:
hevc_4k60P_main_dji_mavic3.mov hevc_with_alpha_layer.mov
The first one won't load (loglevel=debug):
[AVFormatContext @ 0x7f44882af9c0] Opening '/home/paz/hevc_4k60P_main_dji_mavic3.mov' for reading [file @ 0x7f4488031100] Setting default whitelist 'file,crypto,data' [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f44882af9c0] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f44882af9c0] ISO: File Type Major Brand: qt [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f44882af9c0] ISO: File Type Major Brand: qt [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f44882af9c0] moov atom not found [AVIOContext @ 0x7f448822a640] Statistics: 65536 bytes read, 3 seeks
may be download silently failed before reaching true end?
The second one loads normally; in the terminal, I get a very long output, which I’ve attached.
I think this is normal with loglevel debug
Everything seems fine to me, and it even uses Vulkan for decoding.
As for rendering, I’m not sure if I need to create a preset with an alpha channel. But I haven’t tested it yet.
Preset already exist in one of my earlier emails, but I am not 100% sure x265 creates correct bitstream In theory nvenc for nvidia was also said to be able to create hevc-alpha bitstream, and may be intel too (whatever mac machines used in 2019) but again I have no way to test that ....