Inogeni 4K -> USB3.0 and Jetson TX2

[Matteo Valdina]

Hi ,
>From the documentation online the videoparse is deprecated and suggest to
use rawvideoparse.

Best
Matteo

On Feb 2, 2018 04:48, "Pavel Mikhadzionak" <pavel.mikhadzionak at gmail.com>
wrote:

> What difference between videoparse and rawvideoparse? I have gstreamer 1.8
> and similar pipeline don't fix problem:
> gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=3840,height=
> 2160,format=NV12,framerate=30/1 ! videoparse format=23 width=3840
> height=2160 ! fakesink
>
> 2018-02-02 13:17 GMT+03:00 Nicolas Dufresne <nicolas at ndufresne.ca>:
>
>>
>>
>> Le 2 févr. 2018 1:56 AM, "Matteo Valdina" <matteo.valdina at gmail.com> a
>> écrit :
>>
>> Hi,
>> Are you sure that the patch is the right one? It is for GREY not NV12 or
>> I420.
>>
>>
>> Oops.
>>
>> https://patchwork.kernel.org/patch/7979761/
>>
>>
>> Anyway, I faced a similar issue. I used a rawvideoparse to force the
>> stride to the right value.
>>
>> So your command should be something like:
>>
>> gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=3840,height=2160,format=I420
>> ! rawvideoparse format=2 width=3840 height=2160 ! fakesink
>>
>>
>> Yes, you figured right. The UVC driver calculates the stride wrong. Be
>> aware that UVC is not zero copy. With Inogeni the memcpy can be visible as
>> 4k 30fps is quite high bandwidth.
>>
>>
>>
>>
>> Best
>> Matteo Valdina
>>
>> On Thu, Feb 1, 2018 at 5:25 PM, Nicolas Dufresne <nicolas at ndufresne.ca>
>> wrote:
>>
>>>
>>>
>>> Le 1 févr. 2018 11:11, "pavelm" <pavel.mikhadzionak at gmail.com> a écrit :
>>>
>>> I tried to capture 4k video from Inogeni via gstreamer and it's not
>>> working:
>>>
>>>     gst-launch-1.0 v4l2src device=/dev/video0 !
>>> "video/x-raw,width=3840,height=2160,format=I420" ! fakesink
>>>
>>>
>>> Do you have the UVC kernel fix for the stride in NV12 and I420 ?
>>>
>>> https://patchwork.linuxtv.org/patch/45357/
>>>
>>>
>>> With GST_DEBUG="*:3" I see errors:
>>>
>>>     ubuntu at tegra-ubuntu:~$ gst-launch-1.0 v4l2src device=/dev/video0 !
>>> "video/x-raw,width=3840,height=2160,format=I420" ! fakesink
>>>     Setting pipeline to PAUSED ...
>>>     Pipeline is live and does not need PREROLL ...
>>>     Setting pipeline to PLAYING ...
>>>     New clock: GstSystemClock
>>>     0:00:00.276135808 18119       0x60f320 WARN          v4l2bufferpool
>>> gstv4l2bufferpool.c:1196:gst_v4l2_buffer_pool_dqbuf:<v4l2src0:pool:src>
>>> Driver should never set v4l2_buffer.field to ANY
>>>     0:00:00.276210433 18119       0x60f320 WARN          v4l2bufferpool
>>> gstv4l2bufferpool.c:1958:gst_v4l2_buffer_pool_process:<v4l2s
>>> rc0:pool:src>
>>> Dropping corrupted buffer without payload
>>>     0:00:00.276253730 18119       0x60f320 WARN          v4l2bufferpool
>>> gstv4l2bufferpool.c:1958:gst_v4l2_buffer_pool_process:<v4l2s
>>> rc0:pool:src>
>>> Dropping corrupted buffer without payload
>>>     0:00:00.328871196 18119       0x60f320 ERROR                default
>>> video-frame.c:161:gst_video_frame_map_id: failed to map video frame
>>> plane 1
>>>     0:00:00.328947998 18119       0x60f320 ERROR         v4l2bufferpool
>>> gstv4l2bufferpool.c:161:gst_v4l2_buffer_pool_copy_buffer:<v4
>>> l2src0:pool:src>
>>> could not map buffer
>>>     0:00:00.328976798 18119       0x60f320 ERROR         v4l2bufferpool
>>> gstv4l2bufferpool.c:1953:gst_v4l2_buffer_pool_process:<v4l2s
>>> rc0:pool:src>
>>> failed to copy buffer
>>>     0:00:00.329004031 18119       0x60f320 WARN                 basesrc
>>> gstbasesrc.c:2939:gst_base_src_loop:<v4l2src0> error: Internal data
>>> stream
>>> error.
>>>     0:00:00.329015263 18119       0x60f320 WARN                 basesrc
>>> gstbasesrc.c:2939:gst_base_src_loop:<v4l2src0> error: streaming stopped,
>>> reason error (-5)
>>>     ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
>>> Internal
>>> data stream error.
>>>     Additional debug info:
>>>     gstbasesrc.c(2939): gst_base_src_loop ():
>>> /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
>>>     streaming stopped, reason error (-5)
>>>     Execution ended after 0:00:00.186888513
>>>     Setting pipeline to PAUSED ...
>>>     Setting pipeline to READY ...
>>>     Setting pipeline to NULL ...
>>>     Freeing pipeline ...
>>>
>>>
>>>
>>>
>>>
>>> --
>>> Sent from: http://gstreamer-devel.966125.n4.nabble.com/
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>>>
>>
>>
>> --
>> “There are two ways of constructing a software design: One way is to make
>> it so simple that there are obviously no deficiencies, and the other way is
>> to make it so complicated that there are no obvious deficiencies. The first
>> method is far more difficult.”
>> - Tony Hoare
>>
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