Usage of tee to split encoder output

[pchaurasia]

Hi Folks,

1. I am looking to build this pipeline -

camera_rd --> encode --> tee t1 --> queue1 --> filesink t1. --> queue2 -->
decode --> opencv processing

2. First I am trying to accomplish -

camera_rd --> encode --> tee t1 --> queue1 --> filesink t1. --> queue2 -->
playbin --> nveglglessink

3. I have following pipeline that is not working -

ubuntu@tegra-ubuntu:~/tegra_multimedia_api/argus/samples$ gst-launch-1.0
nvcamerasrc fpsRange="30.0 30.0" ! 'video/x-raw(memory:NVMM),
width=(int)1920, height=(int)1080, format=(string)I420,
framerate=(fraction)30/1'  ! omxh265enc bitrate=3000000 ! h265parse! queue
name=queenc ! matroskamux name=mux ! tee name=t ! queue ! filesink
location=test_file.mkv async=0 t. ! queue ! playbin

WARNING: erroneous pipeline: could not link queue2 to playbin0


Any idea how to connect (last queue) queue  to playbin ?


Thanks,



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[pchaurasia]

Hi Folks,

Could you someone please help ? I am not sure how to connect queue to
playing/decoding elements. I tried, individual decode elements instead of
'playbin' . However need some learning here about how to connect tee branch
to decoder elements (like demux).

gst-launch-1.0 nvcamerasrc fpsRange="30.0 30.0" !
'video/x-raw(memory:NVMM), width=(int)1920, height=(int)1080,
format=(string)I420, framerate=(fraction)30/1'  ! omxh265enc
bitrate=3000000 ! h265parse! queue name=queenc ! matroskamux name=mux !
tee name=t ! queue ! filesink location=test_file.mkv async=0 t. !
qtdemux ! queue ! omxh264dec ! nveglglessink -e
WARNING: erroneous pipeline: could not link t to qtdemux0


THis one also does not work -

ubuntu@tegra-ubuntu:~/tegra_multimedia_api/argus/samples$ gst-launch-1.0
nvcamerasrc fpsRange="30.0 30.0" ! 'video/x-raw(memory:NVMM),
width=(int)1920, height=(int)1080, format=(string)I420,
framerate=(fraction)30/1'  ! omxh265enc bitrate=3000000 ! h265parse!
queue name=queenc ! matroskamux name=mux ! tee name=t ! queue ! filesink
location=test_file.mkv async=0 t. ! qtdemux ! omxh264dec ! nveglglessink -e
WARNING: erroneous pipeline: could not link t to qtdemux0


Thanks



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[killerrats]

one question is does the mux to demux work at all? I have tried once and
never able to do that?

see if this is a success for testing.

gst-launch-1.0 -e nvcamerasrc fpsRange="30.0 30.0" ! 'video/x-raw(memory:NVMM), width=(int)1920, height=(int)1080, format=(string)I420, framerate=(fraction)30/1'  ! omxh265enc bitrate=3000000 ! h265parse ! queue ! matroskamux name=mux ! qtdemux ! queue ! omxh264dec ! audioconvert ! nveglglessink

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[killerrats]

if you just want to display whats happening you could just get rid of the
demux and tee the h265parse maybe. this is just trial and error for me to so
i have never tested that.

gst-launch-1.0 -e nvcamerasrc fpsRange="30.0 30.0" !
'video/x-raw(memory:NVMM), width=(int)1920, height=(int)1080,
format=(string)I420, framerate=(fraction)30/1'  ! omxh265enc bitrate=3000000
! h265parse ! tee name= tee ! queue ! matroskamux tee. ! queue ! omxh264dec
! audioconvert ! nveglglessink



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[Nicolas Dufresne-5]

Le mardi 19 septembre 2017 à 16:41 -0700, pchaurasia a écrit :

> Hi Folks,
>
> Could you someone please help ? I am not sure how to connect queue to
> playing/decoding elements. I tried, individual decode elements
> instead of
> 'playbin' . However need some learning here about how to connect tee
> branch
> to decoder elements (like demux).
>
> gst-launch-1.0 nvcamerasrc fpsRange="30.0 30.0" !
> 'video/x-raw(memory:NVMM), width=(int)1920, height=(int)1080,
> format=(string)I420, framerate=(fraction)30/1'  ! omxh265enc
> bitrate=3000000 ! h265parse! queue name=queenc ! matroskamux name=mux
> !
> tee name=t ! queue ! filesink location=test_file.mkv async=0 t. !
> qtdemux ! queue ! omxh264dec ! nveglglessink -e
> WARNING: erroneous pipeline: could not link t to qtdemux0

You are trying to link matroskamux ! qtdemux, through a tee. If you
want to demux matroska, use a matroska demuxer, a ISOMP4 demuxer won't
handle that format.

>
>
> THis one also does not work -
>
> ubuntu@tegra-ubuntu:~/tegra_multimedia_api/argus/samples$ gst-launch-
> 1.0
> nvcamerasrc fpsRange="30.0 30.0" ! 'video/x-raw(memory:NVMM),
> width=(int)1920, height=(int)1080, format=(string)I420,
> framerate=(fraction)30/1'  ! omxh265enc bitrate=3000000 ! h265parse!
> queue name=queenc ! matroskamux name=mux ! tee name=t ! queue !
> filesink
> location=test_file.mkv async=0 t. ! qtdemux ! omxh264dec !
> nveglglessink -e
> WARNING: erroneous pipeline: could not link t to qtdemux0
>
>
> Thanks
>
>
>
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[pchaurasia]

Hi Nicolas
Thanks for your help. After fixing the cmd line per your suggestion - I
think I am almost there. Following is my command line
-

gst-launch-1.0 nvcamerasrc fpsRange="30.0 30.0" ! 'video/x-raw(memory:NVMM),
width=(int)1920, height=(int)1080, format=(string)I420,
framerate=(fraction)30/1' ! omxh265enc bitrate=3000000 ! h265parse !
matroskamux name=mux ! tee name=t ! queue ! filesink location=test_file.mkv
async=0 t. !  matroskademux name=demux.video_0  !  h265parse ! omxh265dec !
nveglglessink -e


I do see that decoder  throws two or three frames on screen after which the
pipeline seem to choke with following messages. I should mention, that I am
using nvidia specific plugins and I am asking them same question, but I
think it wouldn't hurt to ask you, as well..

Setting pipeline to PAUSED ...

Available Sensor modes :
3864 x 2174 FR=60.000000 CF=0x1009208a10 SensorModeType=4
CSIPixelBitDepth=10 DynPixelBitDepth=10
Pipeline is live and does not need PREROLL ...
Got context from element 'eglglessink0': gst.egl.EGLDisplay=context,
display=(GstEGLDisplay)NULL;

NvCameraSrc: Trying To Set Default Camera Resolution. Selected
sensorModeIndex = 0 WxH = 3864x2174 FrameRate = 60.000000 ...

Setting pipeline to PLAYING ...
New clock: GstSystemClock
Framerate set to : 30 at NvxVideoEncoderSetParameterNvMMLiteOpen : Block :
BlockType = 8
===== MSENC =====
NvMMLiteBlockCreate : Block : BlockType = 8
===== NVENC blits (mode: 1) into block linear surfaces =====
NvMMLiteOpen : Block : BlockType = 279
TVMR: NvMMLiteTVMRDecBlockOpen: 7907: NvMMLiteBlockOpen
NvMMLiteBlockCreate : Block : BlockType = 279
TVMR: cbBeginSequence: 1223: BeginSequence  1920x1088, bVPR = 0
TVMR: LowCorner Frequency = 180000
TVMR: cbBeginSequence: 1622: DecodeBuffers = 3, pnvsi->eCodec = 10, codec =
9
TVMR: cbBeginSequence: 1693: Display Resolution : (1920x1080)
TVMR: cbBeginSequence: 1694: Display Aspect Ratio : (1920x1080)
TVMR: cbBeginSequence: 1762: ColorFormat : 5
TVMR: cbBeginSequence:1776 ColorSpace = NvColorSpace_YCbCr601
TVMR: cbBeginSequence: 1904: SurfaceLayout = 3
TVMR: cbBeginSequence: 2005: NumOfSurfaces = 10, InteraceStream = 0,
InterlaceEnabled = 0, bSecure = 0, MVC = 0 Semiplanar = 1, bReinit = 1,
BitDepthForSurface = 8 LumaBitDepth = 8, ChromaBitDepth = 8, ChromaFormat =
5
TVMR: cbBeginSequence: 2007: BeginSequence  ColorPrimaries = 2,
TransferCharacteristics = 2, MatrixCoefficients = 2
Allocating new output: 1920x1088 (x 10), ThumbnailMode = 0
OPENMAX: HandleNewStreamFormat: 3464: Send OMX_EventPortSettingsChanged :
nFrameWidth = 1920, nFrameHeight = 1088
TVMR: FrameRate = 1000
TVMR: NVDEC LowCorner Freq = (576000 * 1024)
ERROR: from element
/GstPipeline:pipeline0/GstOMXH265Enc-omxh265enc:omxh265enc-omxh265enc0:
Internal data stream error.
Additional debug info:
/dvs/git/dirty/git-master_linux/external/gstreamer/gst-omx/omx/gstomxvideoenc.c(1351):
gst_omx_video_enc_loop ():
/GstPipeline:pipeline0/GstOMXH265Enc-omxh265enc:omxh265enc-omxh265enc0:
stream stopped, reason error
EOS on shutdown enabled -- waiting for EOS after Error
TVMR: NvMMLiteTVMRDecDoWork: 6768: NVMMLITE_TVMR: EOS detected
Waiting for EOS...
TVMR: TVMRBufferProcessing: 5723: Processing of EOS
TVMR: TVMRBufferProcessing: 5800: Processing of EOS Done
Got EOS from element "pipeline0".
EOS received - stopping pipeline...
Execution ended after 0:00:01.870566352
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
TVMR: TVMRFrameStatusReporting: 6369: Closing TVMR Frame Status Thread
-------------
TVMR: TVMRVPRFloorSizeSettingThread: 6179: Closing
TVMRVPRFloorSizeSettingThread -------------
TVMR: TVMRFrameDelivery: 6219: Closing TVMR Frame Delivery Thread
-------------
TVMR: NvMMLiteTVMRDecBlockClose: 8105: Done
Setting pipeline to NULL ...
Freeing pipeline ...




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