[meta-freescale] Problem on gstreamer plugins imxv4l2sink

[Daiane Angolini]

On Fri, Nov 14, 2014 at 6:27 AM, Pierre Eliotec
<pierre.eliotec at gmail.com> wrote:
>
> Hello,
>
> I am trying to display subtitles on a imx6 solo based board with gstreamer0.10.
>
> The setup is the following:
> rootfs built with yocto master-next, image based on fsl-image-multimedia, and MACHINE is imx6solosabresd.conf, linux kernel is 3.10.31 BETA.
>
> - When I am trying the following gstreamer command, It works, I have the video on the screen
>
> gst-launch filesrc location=/home/root/M6HD.avi ! mpegtsdemux name=demux demux. ! queue !h264parse ! vpudec low-latency=true ! imxv4l2sink
>
>
> MFW_GST_V4LSINK_PLUGIN 4.0.1 build on Sep 19 2014 16:09:46.
>
> Setting pipeline to PAUSED ...
>
> [INFO] Product Info: i.MX6Q/D/S
>
> vpudec versions :)
>
> plugin: 4.0.1
>
> wrapper: 1.0.54(VPUWRAPPER_ARM_LINUX Build on Sep 19 2014 16:08:56)
>
> vpulib: 5.4.26
>
> firmware: 3.1.1.46060
>
> Pipeline is PREROLLING ...
>
> [INFO] bitstreamMode 1, chromaInterleave 1, mapType 0, tiled2LinearEnable 0
>
> [WARN] VPU iram is less than needed, some parts don't use iram
>
> set v4l rotate sucessfully
>
> >>V4L_SINK: Actually buffer status:
>
> hardware buffer : 12
>
> software buffer : 0
>
> Pipeline is PREROLLED ...
>
> Setting pipeline to PLAYING ...
>
> full screen size:1920x1080
>
> [V4L Update Display]: left=0, top=0, width=1920, height=1080
>
> set v4l display crop sucessfully
>
> New clock: GstSystemClock
>
> - But, when I am trying this gstreamer command, i haven't video on screen:
>
> gst-launch filesrc location=/home/root/M6HD.avi ! mpegtsdemux name=demux demux. ! queue ! h264parse ! vpudec low-latency=true ! dvbsuboverlay name=overlay ! imxv4l2sink demux. ! queue ! subpict ure/x-dvb ! overlay.
>
>
> MFW_GST_V4LSINK_PLUGIN 4.0.1 build on Sep 19 2014 16:09:46.
>
> Setting pipeline to PAUSED ...
>
> [INFO] Product Info: i.MX6Q/D/S
>
> vpudec versions :)
>
> plugin: 4.0.1
>
> wrapper: 1.0.54(VPUWRAPPER_ARM_LINUX Build on Sep 19 2014 16:08:56)
>
> vpulib: 5.4.26
>
> firmware: 3.1.1.46060
>
> Pipeline is PREROLLING ...
>
> [INFO] bitstreamMode 1, chromaInterleave 0, mapType 0, tiled2LinearEnable 0
>
> [WARN] VPU iram is less than needed, some parts don't use iram
>
> set v4l rotate sucessfully
>
> >>V4L_SINK: Actually buffer status:
>
> hardware buffer : 12
>
> software buffer : 0
>
> Pipeline is PREROLLED ...
>
> Setting pipeline to PLAYING ...
>
> full screen size:1920x1080
>
> [V4L Update Display]: left=0, top=0, width=1920, height=1080
>
> set v4l display crop sucessfully
>
> New clock: GstSystemClock
>
> (gst-launch-0.10:734): GStreamer-CRITICAL **: gst_buffer_create_sub: assertion 'buffer->mini_object.refcount > 0' failed
>
> (gst-launch-0.10:734): GStreamer-CRITICAL **: gst_mini_object_unref: assertion 'mini_object->refcount > 0' failed
>
> ** (gst-launch-0.10:734): CRITICAL **: gst_base_parse_push_frame: assertion 'frame->buffer != NULL' failed
>
> ERROR: from element /GstPipeline:pipeline0/GstFileSrc:filesrc0: Internal data flow error.
>
> Additional debug info:
>
> /data/fsl-community-bsp/build-elio/tmp/work/cortexa9hf-vfp-neon-poky-linux-gnueabi/gstreamer/0.10.36-r2/gstreamer-0.10.36/libs/gst/base/gstbasesrc.c(2625): gst_base_src_loop (): /GstPipeline:pipeline0/GstFileSrc:filesrc0:
>
> streaming task paused, reason error (-5)
>
> Execution ended after 1523804333 ns.
>
> Setting pipeline to PAUSED ...
>
> Running time 0:00:01.634884667 render fps 3.058
>
> Setting pipeline to READY ...
>
> (gst-launch-0.10:734): GStreamer-CRITICAL **: gst_mini_object_unref: assertion 'mini_object->refcount > 0' failed
>
> Setting pipeline to NULL ...
>
> Total rendered:5
>
> Freeing pipeline ...
>
>
>
> I think the problem is the input format of imxv4l2sink because in the first case it's NV12 and in the second case it's I420. Do you confirm? If it's true, could you help me please?
>

The first time I saw your email, I saw no picture (because I was using
a plain-text only client). Now, using gmail I got surprised by a
picture.

If it´s a NV12 X I420 problem (your log is pointless as it does not
really shows the caps) you can try a color space conversion. If you´re
using fsl gstreamer plugins, there is a plugin for csc.

Daiane

> Pierre,
> Regards.
>
>
> --
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