I'm using a DM365 board and the DVSDK 4.02.00.06.
The goal is to capture video from a camera and encode it as motion JPEG or H.624, with a GStreamer pipeline.
The issue I see is that even though I use hardware encoder elements (TIImgenc1 and TIVidenc1) I get 100% CPU load and the pipeline is throttled to ~14fps.
For testing, I'm using gst-lauch, reducing to the most primitive pipeline, writing to the "fakesink" null element. When I omit the encoder and have the pipeline write the raw captured frames to fakesink, the CPU load is about 10% and the framerate is 50 fps.
These are the pipelines I'm trying, first for JPEG, second for H.264:
gst-launch v4l2src input-src=component always-copy=false num-buffers=500 ! \
queue ! \
'video/x-raw-yuv,width=640,height=480' ! \
TIImgenc1 iColorSpace=UYVY oColorSpace=YUV420P engineName=codecServer codecName=jpegenc numOutputBufs=3 ! \
fakesink
gst-launch v4l2src input-src=component always-copy=false num-buffers=500 ! \
queue ! \
video/x-raw-yuv, format=\(fourcc\)NV12,width=640,height=480 ! \
TIVidenc1 codecName=h264enc engineName=codecServer encodingPreset=3 ! \
fakesink
At first I thought that perhaps some unintended (and hopefully avoidable) video format conversion is done in software. But the experiment of just removing the encoder line and getting full performance leaves me puzzled.
Thanks for any help,
Jörg
