I'm struggling a bit for while now to get the v4l2-m2m decoder to work with chromium-ozone-wayland.
I've built it with your patchset on top of it.
Then I'm running Chromium with:
--use-gl=egl --ozone-platform=wayland --in-process-gpu --no-sandbox --gpu-sandbox-start-early --ignore-gpu-blocklist --ignore-gpu-blacklist --enable-accelerated-video-decode --enable-features=VaapiVideoDecoder,VaapiVideoEncoder
But when I play a video from youtube with h264ify enabled it always seems to select ffmpeg:
{
"properties": {
"render_id": 12,
"player_id": 32,
"created": "2022-09-21 09:18:56.014 UTC",
"origin_url": "https://www.youtube.com/",
"kFrameUrl": "https://www.youtube.com/watch?v=mtT_w4gegsY",
"kFrameTitle": "YouTube",
"url": "blob:https://www.youtube.com/d3e14a05-3e01-4ab3-aec3-2ec9db469880",
"kTextTracks": [],
"info": "Selected video track: [1]",
"kRendererName": "RendererImpl",
"pipeline_state": "kSuspended",
"duration": 1586.015782,
"kVideoTracks": [
{
"alpha mode": "is_opaque",
"codec": "h264",
"coded size": "1280x720",
"color space": "{primaries:BT709, transfer:BT709, matrix:BT709, range:LIMITED}",
"encryption scheme": "Unencrypted",
"has extra data": false,
"hdr metadata": "unset",
"natural size": "1280x720",
"orientation": "0°",
"profile": "h264 main",
"visible rect": "0,0 1280x720"
}
],
"kAudioTracks": [
{
"bytes per channel": 2,
"bytes per frame": 4,
"channel layout": "STEREO",
"channels": 2,
"codec": "aac",
"codec delay": 0,
"discard decoder delay": false,
"encryption scheme": "Unencrypted",
"has extra data": false,
"profile": "unknown",
"sample format": "Signed 16-bit",
"samples per second": 44100,
"seek preroll": "0us"
}
],
"event": "kSuspended",
"kIsAudioDecryptingDemuxerStream": false,
"kAudioDecoderName": "FFmpegAudioDecoder",
"kIsPlatformAudioDecoder": false,
"kIsVideoDecryptingDemuxerStream": false,
"kVideoDecoderName": "FFmpegVideoDecoder",
"kIsPlatformVideoDecoder": false,
"dimensions": "1280x720",
"kResolution": "1280x720",
"pipeline_buffering_state": {
"for_suspended_start": false,
"state": "BUFFERING_HAVE_ENOUGH"
},
"video_buffering_state": {
"state": "BUFFERING_HAVE_ENOUGH"
},
"kVideoPlaybackRoughness": 40.111,
"kVideoPlaybackFreezing": 0.076659,
"kFramerate": 25,
"seek_target": 463.992598,
"audio_buffering_state": {
"state": "BUFFERING_HAVE_ENOUGH"
}
},
"events": [
{
"time": 0,
"key": "created",
"value": "2022-09-21 09:18:56.014 UTC"
},
{
"time": 10.375,
"key": "origin_url",
"value": "https://www.youtube.com/"
},
{
"time": 10.416000008583069,
"key": "kFrameUrl",
"value": "https://www.youtube.com/watch?v=mtT_w4gegsY"
},
{
"time": 10.437000036239624,
"key": "kFrameTitle",
"value": "YouTube"
},
{
"time": 10.946000039577484,
"key": "url",
"value": "blob:https://www.youtube.com/d3e14a05-3e01-4ab3-aec3-2ec9db469880"
},
{
"time": 10.983000040054321,
"key": "kTextTracks",
"value": []
},
{
"time": 11.117000043392181,
"key": "info",
"value": "ChunkDemuxer"
},
{
"time": 11.189999997615814,
"key": "kRendererName",
"value": "RendererImpl"
},
{
"time": 11.592999994754791,
"key": "pipeline_state",
"value": "kStarting"
},
{
"time": 233.43700003623962,
"key": "duration",
"value": 1586
},
{
"time": 2241.9050000309944,
"key": "kVideoTracks",
"value": [
{
"alpha mode": "is_opaque",
"codec": "h264",
"coded size": "1280x720",
"color space": "{primaries:BT709, transfer:BT709, matrix:BT709, range:LIMITED}",
"encryption scheme": "Unencrypted",
"has extra data": false,
"hdr metadata": "unset",
"natural size": "1280x720",
"orientation": "0°",
"profile": "h264 main",
"visible rect": "0,0 1280x720"
}
]
},
{
"time": 2246.5139999985695,
"key": "kAudioTracks",
"value": [
{
"bytes per channel": 2,
"bytes per frame": 4,
"channel layout": "STEREO",
"channels": 2,
"codec": "aac",
"codec delay": 0,
"discard decoder delay": false,
"encryption scheme": "Unencrypted",
"has extra data": false,
"profile": "unknown",
"sample format": "Signed 16-bit",
"samples per second": 44100,
"seek preroll": "0us"
}
]
},
{
"time": 2282.538000047207,
"key": "info",
"value": "Effective playback rate changed from 0 to 1"
},
{
"time": 2283.388000011444,
"key": "event",
"value": "kPlay"
},
{
"time": 2304.526000022888,
"key": "kIsAudioDecryptingDemuxerStream",
"value": false
},
{
"time": 2304.550000011921,
"key": "kAudioDecoderName",
"value": "FFmpegAudioDecoder"
},
{
"time": 2304.5740000009537,
"key": "kIsPlatformAudioDecoder",
"value": false
},
{
"time": 2304.6930000185966,
"key": "info",
"value": "Selected FFmpegAudioDecoder for audio decoding, config: codec: aac, profile: unknown, bytes_per_channel: 2, channel_layout: STEREO, channels: 2, samples_per_second: 44100, sample_format: Signed 16-bit, bytes_per_frame: 4, seek_preroll: 0us, codec_delay: 0, has extra data: false, encryption scheme: Unencrypted, discard decoder delay: false, target_output_channel_layout: STEREO, target_output_sample_format: Unknown sample format, has aac extra data: true"
},
{
"time": 2309.1830000281334,
"key": "info",
"value": "Failed to initialize DecryptingVideoDecoder"
},
{
"time": 2309.407000005245,
"key": "info",
"value": "Failed to initialize VDAVideoDecoder"
},
{
"time": 2309.587999999523,
"key": "info",
"value": "Failed to initialize VpxVideoDecoder"
},
{
"time": 2309.7549999952316,
"key": "info",
"value": "Failed to initialize Dav1dVideoDecoder"
},
{
"time": 2339.0470000505447,
"key": "kIsVideoDecryptingDemuxerStream",
"value": false
},
{
"time": 2339.069000005722,
"key": "kVideoDecoderName",
"value": "FFmpegVideoDecoder"
},
{
"time": 2339.0830000042915,
"key": "kIsPlatformVideoDecoder",
"value": false
},
{
"time": 2339.240999996662,
"key": "info",
"value": "Selected FFmpegVideoDecoder for video decoding, config: codec: h264, profile: h264 main, level: not available, alpha_mode: is_opaque, coded size: [1280,720], visible rect: [0,0,1280,720], natural size: [1280,720], has extra data: false, encryption scheme: Unencrypted, rotation: 0°, flipped: 0, color space: {primaries:BT709, transfer:BT709, matrix:BT709, range:LIMITED}"
},
{
"time": 2347.6240000128746,
"key": "pipeline_state",
"value": "kPlaying"
},
{
"time": 3007.867000043392,
"key": "dimensions",
"value": "1280x720"
},
{
"time": 3007.888000011444,
"key": "kResolution",
"value": "1280x720"
},
{
"time": 2277.5329999923706,
"key": "duration",
"value": 1586.015782
},
{
"time": 3181.6579999923706,
"key": "pipeline_buffering_state",
"value": {
"for_suspended_start": false,
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 4407.51700001955,
"key": "video_buffering_state",
"value": {
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 16307.198000013828,
"key": "info",
"value": "Selected video track: []"
},
{
"time": 16313.341000020504,
"key": "pipeline_buffering_state",
"value": {
"for_suspended_start": false,
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 36876.04199999571,
"key": "info",
"value": "Selected video track: [1]"
},
{
"time": 36882.905000030994,
"key": "video_buffering_state",
"value": {
"state": "BUFFERING_HAVE_NOTHING"
}
},
{
"time": 38010.06700003147,
"key": "pipeline_buffering_state",
"value": {
"for_suspended_start": false,
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 74910.87800002098,
"key": "event",
"value": "kPause"
},
{
"time": 74914.78299999237,
"key": "kVideoPlaybackRoughness",
"value": 40.111
},
{
"time": 74926.71700000763,
"key": "kVideoPlaybackFreezing",
"value": 0.076659
},
{
"time": 74926.75300002098,
"key": "kFramerate",
"value": 25
},
{
"time": 75144.79199999571,
"key": "seek_target",
"value": 418.861019
},
{
"time": 75145.27100002766,
"key": "pipeline_state",
"value": "kSeeking"
},
{
"time": 75253.97000002861,
"key": "event",
"value": "kPlay"
},
{
"time": 75807.1360000372,
"key": "pipeline_state",
"value": "kPlaying"
},
{
"time": 75965.83200001717,
"key": "audio_buffering_state",
"value": {
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 77411.65600001812,
"key": "video_buffering_state",
"value": {
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 77412.45700001717,
"key": "pipeline_buffering_state",
"value": {
"for_suspended_start": false,
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 79325.08200001717,
"key": "event",
"value": "kPause"
},
{
"time": 79405.79300004244,
"key": "seek_target",
"value": 463.992598
},
{
"time": 79406.42200005054,
"key": "pipeline_state",
"value": "kSeeking"
},
{
"time": 79502.63700002432,
"key": "event",
"value": "kPlay"
},
{
"time": 79409.49099999666,
"key": "video_buffering_state",
"value": {
"state": "BUFFERING_HAVE_NOTHING"
}
},
{
"time": 80003.09700000286,
"key": "pipeline_state",
"value": "kPlaying"
},
{
"time": 80119.97900003195,
"key": "audio_buffering_state",
"value": {
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 81976.74099999666,
"key": "video_buffering_state",
"value": {
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 82020.19400000572,
"key": "pipeline_buffering_state",
"value": {
"for_suspended_start": false,
"state": "BUFFERING_HAVE_ENOUGH"
}
},
{
"time": 105037.28700000048,
"key": "event",
"value": "kPause"
},
{
"time": 123379.98600000143,
"key": "pipeline_state",
"value": "kSuspending"
},
{
"time": 123409.16000002623,
"key": "pipeline_state",
"value": "kSuspended"
},
{
"time": 123409.35199999809,
"key": "event",
"value": "kSuspended"
}
]
}
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