RaspberryPi WebCamera Hardware Encode Sample
- UVC Camera
- Stole v4l2uvc.h and v4l2uvc.c code from uvccapture project
- RaspberryPi's Hardware Encode support color format OMX_COLOR_FormatYUV420PackedPlanar
- Encode each raw frame with h264
1. Detect UVC Web Camera
sudo apt-get install v4l-utils
v4l2-ctl --all
root@raspberrypi:/opt/vc/src/hello_pi/raspi_camera_hardware_encode# v4l2-ctl --all
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : FULL HD 1080P Webcam
Bus info : usb-bcm2708_usb-1.2
Driver version: 3.6.11
Capabilities : 0x04000001
Video Capture
Streaming
Format Video Capture:
Width/Height : 320/240
Pixel Format : 'YUYV'
Field : None
Bytes per Line: 640
Size Image : 153600
Colorspace : SRGB
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 320, Height 240
Default : Left 0, Top 0, Width 320, Height 240
Pixel Aspect: 1/1
Video input : 0 (Camera 1: ok)
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 30.000 (30/1)
Read buffers : 0
My UVC camera supports "320x240" YUYV format.
2. get source code from github, compile it
On your raspberrypi, enter the following directory:
cd /opt/vc/src/hello_pi
git clone https://github.com/yulin724/raspi_camera_hardware_encode.git
make
3. run it
./hello_encode.bin output.h264
4. play video file in vlc
You can download VLC player on Windows or Linux, then play the output.h264 file in it.