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tinkerboard hw h264 encoding
#1
HI, 

I have been trying to use h264 hw encoding on my tinkerboard using the gstreamer.
However, when i am running the below command, the board just hangs. When i am using software encoding(x264enc) everything works fine. 
This is how i build the gstreamer plugin:

Build
./autogen.sh
Make
Make install
Mpp installed:
linaro@tinkerboard:~/rockchip/gstreamer-rockchip$ gst-inspect-1.0 | grep h264
rockchipmpp:  mpph264enc: Rockchip Mpp H264 Encoder
typefindfunctions: video/x-h264: h264, x264, 264
libav:  avdec_h264: libav H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 decoder
libav:  avenc_h264_omx: libav OpenMAX IL H.264 video encoder encoder
uvch264:  uvch264src: UVC H264 Source
uvch264:  uvch264mjpgdemux: UVC H264 MJPG Demuxer
videoparsersbad:  h264parse: H.264 parser
rtp:  rtph264pay: RTP H264 payloader
rtp:  rtph264depay: RTP H264 depayloader


Running:
gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=NV12,width=640,height=480,framerate=30/1 ! queue ! mpph264enc ! queue ! h264parse ! matroskamux ! filesink location='hw_h264_encode.mkv' sync=false
Or
gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=YUY2,width=640,height=480,framerate=15/1 ! videoconvert ! mpph264enc ! h264parse  ! mp4mux ! filesink location='hw_h264_encode.mp4' sync=false

I have taken the gstreamer plugin from here:
https://github.com/rockchip-linux/gstreamer-rockchip

I have a few questions: 
1. How can i make the hardware encoding to work?
2. When will the board support HW acceleration on ffmepg?

Thanks,
Oren
Reply
#2
Below command can be work by build-in gstreamer in the latest TinkerOS release image for your reference.

gst-launch-1.0 v4l2src ! video/x-raw,format=NV12,width=640,height=480,framerate=30/1 ! queue ! mpph264enc ! queue ! h264parse ! mpegtsmux ! filesink location=/home/linaro/2k.ts
Reply
#3
Hi,
The huge file is produced if the "snow" pattern (of videotestsrc plugin) is used.
I suppose mpph264enc is in CQP mode.
How to configure mpph264enc to use CBR and set the target bitrate for it?
Thanks.
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