Comment 81 for bug 1816497

I also can't get the hardware acceleration on Youtube.

With Netflix I do get DecryptingVideoDecoder.

Also there is no "Hardware-accelerated video decode" in flags.

Chromium snap version 84.0.4147.135 from candidate/vaapi channel.

$ vainfo
libva info: VA-API version 1.7.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/radeonsi_drv_video.so
libva info: Found init function __vaDriverInit_1_7
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.7 (libva 2.6.0)
vainfo: Driver version: Mesa Gallium driver 20.0.8 for AMD Radeon RX 5600 XT (NAVI10, DRM 3.38.0, 5.8.3-xanmod1, LLVM 10.0.0)
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple : VAEntrypointVLD
      VAProfileMPEG2Main : VAEntrypointVLD
      VAProfileVC1Simple : VAEntrypointVLD
      VAProfileVC1Main : VAEntrypointVLD
      VAProfileVC1Advanced : VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
      VAProfileH264Main : VAEntrypointVLD
      VAProfileH264Main : VAEntrypointEncSlice
      VAProfileH264High : VAEntrypointVLD
      VAProfileH264High : VAEntrypointEncSlice
      VAProfileHEVCMain : VAEntrypointVLD
      VAProfileHEVCMain : VAEntrypointEncSlice
      VAProfileHEVCMain10 : VAEntrypointVLD
      VAProfileJPEGBaseline : VAEntrypointVLD
      VAProfileVP9Profile0 : VAEntrypointVLD
      VAProfileVP9Profile2 : VAEntrypointVLD
      VAProfileNone : VAEntrypointVideoProc

chrome://media-internals/

render_id: 9
player_id: 24
origin_url: https://www.youtube.com/
kFrameUrl: https://www.youtube.com/watch?v=LXb3EKWsInQ
kFrameTitle: COSTA RICA IN 4K 60fps HDR (ULTRA HD) - YouTube
url: blob:https://www.youtube.com/61c207f8-ceac-4af4-ab57-2e6c0526d53b
info: Effective playback rate changed from 0 to 1
pipeline_state: kPlaying
kAudioTracks: [object Object]
duration: 313.840907
kVideoTracks: [object Object]
kIsAudioDecryptingDemuxerStream: false
kAudioDecoderName: FFmpegAudioDecoder
kIsPlatformAudioDecoder: false
error: {"causes":[{"causes":[],"data":{"codec":"h264"},"stack":[{"file":"../../media/filters/dav1d_video_decoder.cc","line":165}],"status_code":260,"status_message":""}],"data":{"Decoder name":"Dav1dVideoDecoder"},"stack":[{"file":"../../media/filters/decoder_selector.cc","line":172}],"status_code":265,"status_message":""}
kIsVideoDecryptingDemuxerStream: false
kVideoDecoderName: FFmpegVideoDecoder
kIsPlatformVideoDecoder: false
audio_buffering_state: [object Object]
dimensions: 1920x1080
kResolution: 1920x1080
video_buffering_state: [object Object]
pipeline_buffering_state: [object Object]
event: kPlay