textoverlay/imageoverlay on udp receive stream

[riteshSTPL]

I am using gstreamer-1.0 v1.2.4 on nVidia Jetson TX1.
I want to add text/image overlay on udp receive stream.

Pipeline for stream preview without overlay.
*gst-launch-1.0 udpsrc port=5000 !
application/x-rtp,encoding-name=H264,payload=96 ! rtph264depay ! h264parse !
omxh264dec ! autovideosink sync=false async=false -e*

I tried below pipeline but gives no video.
*gst-launch-1.0 udpsrc port=5000 !
application/x-rtp,encoding-name=H264,payload=96 ! rtph264depay ! h264parse !
omxh264dec ! textoverlay text="Recording..." halignment=0 valignment=1 !
autovideosink sync=false async=false -e*
/Setting pipeline to PAUSED ...
Inside NvxLiteH264DecoderLowLatencyInitNvxLiteH264DecoderLowLatencyInit set
DPB and MjstreamingInside
NvxLiteH265DecoderLowLatencyInitNvxLiteH265DecoderLowLatencyInit set DPB and
MjstreamingPipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
NvMMLiteOpen : Block : BlockType = 261
TVMR: NvMMLiteTVMRDecBlockOpen: 6736: NvMMLiteBlockOpen
NvMMLiteBlockCreate : Block : BlockType = 261
TVMR: cbBeginSequence: 803: BeginSequence  1920x1088, bVPR = 0
TVMR: cbBeginSequence: 1147: DecodeBuffers = 14, pnvsi->eCodec = 4, codec =
0
TVMR: cbBeginSequence: 1206: Display Resolution : (1920x1080)
TVMR: cbBeginSequence: 1207: Display Aspect Ratio : (1920x1080)
TVMR: cbBeginSequence: 1247: ColorFormat : 5
TVMR: cbBeginSequence:1258 ColorSpace = NvColorSpace_YCbCr709
TVMR: cbBeginSequence: 1429: SurfaceLayout = 3
TVMR: cbBeginSequence: 1474: NumOfSurfaces = 18, InteraceStream = 0,
InterlaceEnabled = 0, bSecure = 0, MVC = 0 Semiplanar = 1, bReinit = 1,
BitDepthForSurface = 8
Allocating new output: 1920x1088 (x 20), ThumbnailMode = 0
TVMR: FrameRate = 78
TVMR: NVDEC LowCorner Freq = (468000 * 1024)
---> TVMR: Video-conferencing detected !!!!!!!!!
TVMR: FrameRate = 60.004200
TVMR: FrameRate = 59.994481
/

I tried below pipeline but gives video without image overlay but with
following debug error.
*gst-launch-1.0 udpsrc port=5000 !
application/x-rtp,encoding-name=H264,payload=96 ! rtph264depay ! h264parse !
omxh264dec ! gdkpixbufoverlay location=record.jpg offset-x=20 offset-y=20 !
autovideosink sync=false async=false -e*
/Additional debug info:
gstvideofilter.c(339): gst_video_filter_transform_ip ():
/GstPipeline:pipeline0/GstGdkPixbufOverlay:gdkpixbufoverlay0:
invalid video buffer received
WARNING: from element
/GstPipeline:pipeline0/GstGdkPixbufOverlay:gdkpixbufoverlay0: Internal
GStreamer error: code not implemented.  Please file a bug at
http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer./

So whats wrong in this?



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