[Cin] Video Formats and the latest players AV1, WebM, HEIF

Andrew Randrianasulu randrianasulu at gmail.com
Thu Jan 11 03:30:50 CET 2024

вт, 9 янв. 2024 г., 20:06 Terje J. Hanssen via Cin <
cin at lists.cinelerra-gg.org>:

> AV1 and WebM:
> Play it with your browser and smart-phone!
> I've just tested PAL HDV 16:9 and SD-DV 4:3 video clips rendered with
> Cin-GG to AV1 video and Opus audio muxed in a WebM container.
> They playback fine in VLC mediaplayer and not at least in  Firefox and
> Google-Chrome browsers on Linux.
> Transferred these WebM clips using Gnome File manager on Linux to my
> smart-phone Google Pixel 7 Pro via USB connection.
> Tested these AV1 WebM clips playback worked fine on Pixel 7 with Android
> 14, possibly using its Tensor hw decoder.

may be mobile mpv can help to see if hardware decoder was using in this
vase ?

> Refresh training references:
> Video File Formats overview
> https://www.ionos.com/digitalguide/websites/web-design/video-formats/
> AV1 Codec
> https://www.ionos.com/digitalguide/websites/web-development/av1-codec/
> WebM:
> https://www.ionos.com/digitalguide/websites/website-creation/webm/
> https://www.ionos.com/digitalguide/websites/web-design/what-can-heif-high-efficiency-image-file-format-do/

This last one probably not yet in ffmpeg 6.1, I just saw this commit in

commit a0821345eb31b727d93c9c3ed7d74d2774c73afa
Author: Vignesh Venkatasubramanian via ffmpeg-devel <ffmpeg-devel at ffmpeg.org>

Date:   Wed Oct 4 09:40:15 2023 -0700

    avformat/mov: Add support for demuxing still HEIC images   They are
similar to AVIF images (both use the HEIF container). The only additional
work needed is to parse the hvcC box and put it in the extradata.

    With this patch applied, ffmpeg (when built with an HEVC decoder)    is
able to decode the files in


 Also add a couple of fate tests with samples from


                           Partially fixes trac ticket #6521.


see also bunch of fixes for prores encoders.

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