env GST_MPP_VIDEODEC_DEFAULT_ARM_AFBC=1 \
    GST_VIDEO_CONVERT_USE_RGA=1 \
    GST_MPP_DEC_DEFAULT_FAST_MODE=1 \
    GST_DEBUG=3,*mpp*:5 \
gst-launch-1.0 \
    rtmpsrc location=rtmp://127.0.0.1/publish/live ! flvdemux name=demux \
    demux.video ! identity name=v_delay signal-handoffs=TRUE ! h264parse ! mppvideodec ! videorate ! video/x-raw,framerate=60/1,format=NV12 ! textoverlay text='' valignment=top halignment=right font-desc="Monospace, 5" name=overlay ! queue ! videomixer name=mix sink_1::xpos=1280 sink_1::ypos=0 ! queue ! mpph265enc zero-copy-pkt=1 qp-max=51 gop=120 name=venc_bps ! h265parse config-interval=-1 ! queue max-size-time=10000000000 max-size-buffers=1000 max-size-bytes=41943040 ! mux. \
    v4l2src device=/dev/usb_capture ! image/jpeg ! identity name=v_delay_usb signal-handoffs=TRUE ! mppjpegdec ! videorate ! video/x-raw,width=640,height=360,framerate=60/1 ! textoverlay text='' valignment=top halignment=right font-desc="Monospace, 5" name=overlay_usb ! queue ! mix.sink_1 \
    alsasrc device=hw:CARD=usbaudio ! identity name=a_delay signal-handoffs=TRUE ! volume volume=1.0 ! audioconvert ! voaacenc bitrate=128000 ! aacparse ! queue max-size-time=10000000000 max-size-buffers=1000 ! mux. \
    mpegtsmux name=mux ! appsink name=appsin