i.MX ProcessorsのトピックRe: GStreamer - imxv4l2src

GStreamer - imxv4l2src

erikraynolds — Thu, 28 Jul 2016 21:10:49 GMT

I want save a video from webcam. I set this pipeline

gst-launch-1.0 imxv4l2src -e -v device=/dev/video1 num-buffers=100 ! vpuenc_h264 ! h264parse ! filesink location=video1.mp4

I am getting:

root@imx6qpsabreauto:~# gst-launch-1.0 imxv4l2src -e -v device=/dev/video1 num-buffers=100 ! vpuenc_h264 ! h264parse ! filesink location=video1.mp4

====== IMXV4L2SRC: 4.0.8 build on Jun 6 2016 18:59:27. ======

Setting pipeline to PAUSED ...

[INFO] Product Info: i.MX6Q/D/S

====== VPUENC: 4.0.8 build on Jun 6 2016 18:59:36. ======

wrapper: 1.0.62 (VPUWRAPPER_ARM_LINUX Build on Jun 6 2016 18:33:35)

vpulib: 5.4.32

firmware: 3.1.1.46070

Pipeline is live and does not need PREROLL ...

Setting pipeline to PLAYING ...

ERROR: from element /GstPipeline:pipeline0/GstImxV4l2Src:imxv4l2src0: Internal data flow error.

Additional debug info:

/mnt/work/Linux/fsl-release-3.14.52-1.1.0_ga/build-x11-full/tmp/work/cortexa9hf-vfp-neon-poky-linux-gnueabi/gstreamer1.0/1.4.5-r0/gstreamer-1.4.5/libs/gst/base/gstbasesrc.c(2933): gst_base_src_loop (): /GstPipeline:pipeline0/GstImxV4l2Src:imxv4l2src0:

streaming task paused, reason not-negotiated (-4)

EOS on shutdown enabled -- waiting for EOS after Error

Waiting for EOS...

New clock: GstSystemClock

Got EOS from element "pipeline0".

EOS received - stopping pipeline...

Execution ended after 0:00:00.001804333

Setting pipeline to PAUSED ...

Setting pipeline to READY ...

Setting pipeline to NULL ...

Freeing pipeline ...

root@imx6qpsabreauto:~#

Thank you for your help.

Re: GStreamer - imxv4l2src

Yuri — Fri, 29 Jul 2016 07:27:54 GMT

Hello,

Hope the following helps.

Streaming webcam video with the gstreamer-imx

Have a great day,
Yuri

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Re: GStreamer - imxv4l2src

erikraynolds — Fri, 29 Jul 2016 08:53:05 GMT

Nope. it did not help unfortunately.

root@imx6qpsabreauto:~# gst-launch-1.0 v4l2src -e -v device=/dev/video1 num-buffers=100 ! vpuenc_h264 ! h264parse ! filesink location=video1.mp4Setting pipeline to PAUSED ...

[INFO] Product Info: i.MX6Q/D/S

====== VPUENC: 4.0.8 build on Jun 6 2016 18:59:36. ======

wrapper: 1.0.62 (VPUWRAPPER_ARM_LINUX Build on Jun 6 2016 18:33:35)

vpulib: 5.4.32

firmware: 3.1.1.46070

Pipeline is live and does not need PREROLL ...

Setting pipeline to PLAYING ...

New clock: GstSystemClock

ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Internal data flow error.

Additional debug info:

streaming task paused, reason not-negotiated (-4)

EOS on shutdown enabled -- waiting for EOS after Error

Waiting for EOS...

I check pipeline functionality with

$ gst-launch v4l2src ! decodebin2 ! mfw_v4lsink

root@imx6qpsabreauto:~# gst-launch v4l2src ! decodebin2 ! mfw_v4lsink

(gst-plugin-scanner:16058): GLib-GObject-WARNING **: cannot register existing type 'GstVorbisDec'

(gst-plugin-scanner:16058): GLib-CRITICAL **: g_once_init_leave: assertion 'result != 0' failed

(gst-plugin-scanner:16058): GStreamer-CRITICAL **: gst_element_register: assertion 'g_type_is_a (type, GST_TYPE_ELEMENT)' failed

MAX resolution 1920x1080

WARNING: erroneous pipeline: no element "mfw_v4lsink"

root@imx6qpsabreauto:~#

And I RTFM and no answer there :smileyhappy: