User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/110.0

Steps to reproduce:

With media.ffmpeg.vaapi.enabled set to true, I loaded an H.264 video (https://tools.woolyss.com/html5-audio-video-tester/?u=woolyss.com/f/Big_Buck_Bunny_Trailer.m4v).

I am running the Fedora 38 beta, which ships FFMPEG 6.0 (libavcodec-free). This provides /usr/lib64/libavcodec.so.60.

Actual results:

Firefox rejects this version of FFMPEG / libavcodec.

[RDD 75088: Main Thread]: D/PlatformDecoderModule FFMPEG: H264/AAC codecs unsupported without [
[RDD 75088: Main Thread]: D/PlatformDecoderModule FFMPEG: libavcodec.so.59
[RDD 75088: Main Thread]: D/PlatformDecoderModule FFMPEG: , libavcodec.so.58
[RDD 75088: Main Thread]: D/PlatformDecoderModule FFMPEG: , libavcodec-ffmpeg.so.58
[RDD 75088: Main Thread]: D/PlatformDecoderModule FFMPEG: , libavcodec-ffmpeg.so.57
[RDD 75088: Main Thread]: D/PlatformDecoderModule FFMPEG: , libavcodec-ffmpeg.so.56
[RDD 75088: Main Thread]: D/PlatformDecoderModule FFMPEG: , libavcodec.so.57
[RDD 75088: Main Thread]: D/PlatformDecoderModule FFMPEG: , libavcodec.so.56
[RDD 75088: Main Thread]: D/PlatformDecoderModule FFMPEG: , libavcodec.so.55
[RDD 75088: Main Thread]: D/PlatformDecoderModule FFMPEG: , libavcodec.so.54
[RDD 75088: Main Thread]: D/PlatformDecoderModule FFMPEG: , libavcodec.so.53
[RDD 75088: Main Thread]: D/PlatformDecoderModule FFMPEG: ]

Expected results:

Firefox allows the use of FFMPEG version 6.0.

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Looks like this is already targeted for Firefox 112. https://bugzilla.mozilla.org/show_bug.cgi?id=1819374