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agherzan / meta-raspberrypi

Yocto/OE BSP layer for the Raspberry Pi boards
https://www.yoctoproject.org/
MIT License
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Unable to play QML video on raspberrypi cm3 on warrior branch #907

Closed Shravansingh closed 2 years ago

Shravansingh commented 3 years ago

Description

I am trying to use qt multimedia to play an MP4 video on raspberrypi cm3 on warrior branch. I am able to play the said video using OMX player but not with Qt gstreamer.

Describe the results you received: On the Qml side: I get the following error

qt.multimedia.video: source is QDeclarativeAudio(0x1bffe60)
qt.multimedia.video: media object is QMediaPlayer(0x1c8c530)
qt.multimedia.video: found videonode plugin "egl" 0x1efddc8
qt.multimedia.video: updatePaintNode: no frames yet
qt.multimedia.video: updatePaintNode: no frames yet
Warning: "Failed to connect: Connection refused"
qt.multimedia.video: Video surface format: QVideoSurfaceFormat(Format_YUV420P, QSize(640, 480), viewport=QRect(0,0 640x480), pixelAspectRatio=QSize(1, 1), handleType=NoHandle, yCbCrColorSpace=YCbCr_Undefined)
    handleType = QVariant(QAbstractVideoBuffer::HandleType, )
    pixelFormat = QVariant(QVideoFrame::PixelFormat, )
    frameSize = QVariant(QSize, QSize(640, 480))
    frameWidth = QVariant(int, 640)
    viewport = QVariant(QRect, QRect(0,0 640x480))
    scanLineDirection = QVariant(QVideoSurfaceFormat::Direction, )
    frameRate = QVariant(double, 25)
    pixelAspectRatio = QVariant(QSize, QSize(1, 1))
    sizeHint = QVariant(QSize, QSize(640, 480))
    yCbCrColorSpace = QVariant(QVideoSurfaceFormat::YCbCrColorSpace, )
    mirrored = QVariant(bool, false) all supported formats: (Format_YUV420P, Format_YV12, Format_NV12, Format_NV21, Format_UYVY, Format_YUYV, Format_RGB32, Format_ARGB32, Format_BGR32, Format_BGRA32, Format_RGB565)

When I run the dmesg I get the bellow error 

[21425.092624] cma: cma_alloc: alloc failed, req-size: 113 pages, ret: -12
[21425.092647] bcm2835-codec bcm2835-codec: dma_alloc_coherent of size 462848 failed
[21425.100286] bcm2835_mmal_vchiq: buffer_from_host: msg_context not allocated, buf cfd0b4e2
[21425.100413] bcm2835_mmal_vchiq: buffer_from_host: msg_context not allocated, buf a39e1a2a
[21425.100529] bcm2835_mmal_vchiq: buffer_from_host: msg_context not allocated, buf 7639b224
[21425.100637] bcm2835_mmal_vchiq: buffer_from_host: msg_context not allocated, buf 735ec6a6
[21425.100747] bcm2835_mmal_vchiq: buffer_from_host: msg_context not allocated, buf 46ccd78a
[21425.100857] bcm2835_mmal_vchiq: buffer_from_host: msg_context not allocated, buf 0e6f3a19
[21425.100993] bcm2835_mmal_vchiq: buffer_from_host: msg_context not allocated, buf 0f342248
[21425.101114] bcm2835_mmal_vchiq: buffer_from_host: msg_context not allocated, buf 26c74db6
[21425.101224] bcm2835_mmal_vchiq: buffer_from_host: msg_context not allocated, buf ed904bf4
[21425.101333] bcm2835_mmal_vchiq: buffer_from_host: msg_context not allocated, buf 15f5ce9b
[21425.101442] bcm2835_mmal_vchiq: buffer_from_host: msg_context not allocated, buf 26246ec7
[21425.101922] bcm2835_mmal_vchiq: buffer_from_host: msg_context not allocated, buf 6ab472b7

Describe the results you expected:

Additional information you deem important (e.g. issue happens only occasionally): Do I need to incorporate this bellow mentioned ticket to get rid of cma_alloc issue https://github.com/raspberrypi/linux/issues/2680#issue-359609339

Additional details (revisions used, host distro, etc.):

My Local.conf DISTRO_FEATURES_append = " usbhost ppp systemd wifi pulseaudio alsa opengl" DISTRO_FEATURES_remove = " wayland" MACHINE_FEATURES_remove = " vc4graphics" PACKAGECONFIG_append_pn-qtmultimedia = " gstreamer alsa" IMAGE_INSTALL_append = " ffmpeg gstreamer1.0 gstreamer1.0-plugins-base gstreamer1.0-libav gstreamer1.0-rtsp-server gstreamer1.0-meta-base gstreamer1.0-plugins-ugly gstreamer1.0-plugins-good gst-examples pulseaudio alsa-utils alsa-plugins omxplayer"

agherzan commented 3 years ago

Can you try it on master?

Shravansingh commented 3 years ago

@agherzan okay I will try that out. Is there a reason you want me to try on the master branch? My work has been based on warrior. Is there a particular patch that you want me to apply?

agherzan commented 3 years ago

The reason is that warrior is not a branch that we maintain. So I think this needs a bit of investigation and the first test I'd do is to see if it is reproducible on master.

EDIT: Closing due to no activity.