When will the AV1 codec be implemented in Hybrid?

[JKyle]

Had a quick look at the muxing call used by Hybrid, which is for example:

ffmpeg -y  -i "E:\Temp\test_05_23_16_7610_01.ivf" -vcodec copy -map 0:0  -aspect 181818:100000 -metadata handler_name="Hybrid 2018.10.09.1" -r 25 "E:\Output\test.webm"

since Hybrid sets the 'handler_name' tag I suspect that the problem with the tagging is probably a MediaInfo bug with webm.
Since calling

ffmpeg -i "E:\Output\test.webm"

on the output, properly shows

[libaom-av1 @ 0000024874713980] 1.0.0-708-gdf7131064
Input #0, matroska,webm, from 'e:\Output\test.webm':
 Metadata:
   HANDLER_NAME    : Hybrid 2018.10.09.1
   ENCODER         : Lavf58.18.104
 Duration: 00:00:17.16, start: 0.000000, bitrate: 240 kb/s
   Stream #0:0: Video: av1 (Main), yuv420p(tv), 640x352, SAR 1:1 DAR 20:11, 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
   Metadata:
     DURATION        : 00:00:17.160000000
At least one output file must be specified

Regarding the aomenc crash I would need a more details (read sticky), probably a debug output level 9 of the job processing.

Cu Selur

Thanks a million.

Now I finally figured out why the rav1e encoded IVF file couldn't be converted to the webm/mkv format via the media-autobuild_suite built FFmpeg. The libaom ver. 1.0.0-729-ged7d0d090 was the culprit. It's the most recent version available the most recent version that doesn't conflict with libvpx as of now (see m-a_s issue #954 that I opened to report this bug), and the media-autobuild_suite script fetches this version in order to build aomenc.exe, aomdec.exe along with libaom-av1 in FFmpeg. It is, however, problematic and the resulting libaom-av1 constantly fails to decode AV1 frames. And since I couldn't encode an AV1 mkv video from an AVC mp4 file via libaom-av1, it is certain that this version of libaom-av1 has an issue with encoding as well.

I downloaded the Zeranoe version, and it solves all the problems. There, the libaom-av1 version is 1.0.0-691-gbb8157b89.

Since Hybrid 2018.10.07.1 succeeds in rav1e encoding including webm conversion while failing in aomenc encoding and webm conversion ― based on my test ― I suspect that the libaom version that Hybrid adopts has an issue with encoding while it is OK with decoding. Well, this is just my guess, and I need to double check this with further testing. I will set up the debug mode and set the output level to 9 and report the log file if the problem persists.

(BTW, I can see that the libaom version of Hybrid 2018.10.07.1 is 1.0.0-708-gdf7131064. Correct me if I'm wrong.)

And about the metadata tag, I could confirm that it was a MediaInfo bug. Thanks for letting me know.