Re: [PATCH 1/3] media: rockchip: Introduce the rkvdec2 driver

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Hi Detlev,

Thanks a lot for your work! I try to use rkvdec2 with chromium but it
can't play h264 video. Here is the log of chromium:

[5799:5873:0617/171224.850061:VERBOSE2:video_decoder_pipeline.cc(473)] Initialize(): config: codec: h264, profile: h264 high, level: not available, alpha_mode: is_opaque, coded size: [1920,1080], visible rect: [0,0,1920,1080], natural size: [1920,1080], has extra data: true, encryption scheme: Unencrypted, rotation: 0°, flipped: 0, color space: {primaries:BT709, transfer:BT709, matrix:BT709, range:LIMITED}
[5799:5886:0617/171224.850915:VERBOSE2:v4l2_video_decoder.cc(182)] V4L2VideoDecoder():
[5799:5886:0617/171224.851218:VERBOSE1:v4l2_device.cc(128)] Open(): No devices supporting H264 for type: 0
[5799:5886:0617/171224.851346:VERBOSE4:v4l2_queue.cc(1069)] This queue does  support requests.: No such file or directory (2)
[5799:5886:0617/171224.851426:VERBOSE1:v4l2_video_decoder.cc(476)] InitializeBackend(): Using a stateless API for profile: h264 high and fourcc: S264
[5799:5886:0617/171224.851687:VERBOSE1:v4l2_video_decoder.cc(598)] SetupInputFormat(): Input (OUTPUT queue) Fourcc: S264
[5799:5886:0617/171224.851797:VERBOSE1:v4l2_video_decoder.cc(636)] AllocateInputBuffers(): Requesting: 17 OUTPUT buffers of type V4L2_MEMORY_MMAP
[5799:5886:0617/171224.867687:VERBOSE1:v4l2_queue.cc(1511)] Streamon(): (OUTPUT_MPLANE) VIDIOC_STREAMON failed: Invalid argument (22)
[5799:5886:0617/171224.867902:VERBOSE1:v4l2_video_decoder.cc(937)] StartStreamV4L2Queue(): Failed to streamon V4L2 queue.
[5799:5886:0617/171224.868009:VERBOSE1:v4l2_video_decoder.cc(1377)] SetState(): Error occurred, stopping queues.
[5799:5886:0617/171224.868105:ERROR:v4l2_video_decoder.cc(120)] StartStreamV4L2Queue failed at Decode@media/gpu/v4l2/v4l2_video_decoder.cc:915
[5799:5886:0617/171224.871898:WARNING:v4l2_video_decoder_backend_stateless.cc(126)] There is/are 0 pending CAPTURE queue buffers pending dequeuing. This might be fine or a problem depending on the destruction semantics (of theclient code.

Here is the chromium code failed when calling VIDIOC_STREAMON:
https://github.com/chromium/chromium/blob/125.0.6422.60/media/gpu/v4l2/v4l2_queue.cc#L1508

I'm running chromium v125.0.6422.60 and I can decode 1080p h264 with
hantro g1 decoder on rk3588.

Best regards,
Jianfeng




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