FFmpeg with Cedrus H264 HW Encoder (A64 - CMOS Camera)

The Cedrus HW encoder  is working on A64 (POC).

FFmpeg 2.8.6 with cedrus264 can be found for testing here: https://github.com/avafinger/ffmpeg_cedrus264_A64

It was tested on Pine64+ (1GB) and OV5640.

Output:

VDPAU SUNXI] VE version 0x1689 opened.
Output #0, h264, to 'test.h264':
  Metadata:
    encoder         : Lavf56.40.101
    Stream #0:0: Video: h264 (cedrus264), nv12, 1024x768, q=2-31, 200 kb/s, 15 fps, 15 tbn, 15 tbc
    Metadata:
      encoder         : Lavc56.60.100 cedrus264
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (cedrus264))
Press [q] to stop, [?] for help
frame=   12 fps=0.0 q=-0.0 size=      89kB time=00:00:00.80 bitrate= 910.4kbits/
frame=   24 fps= 22 q=-0.0 size=     170kB time=00:00:01.60 bitrate= 868.2kbits/
frame=   36 fps= 22 q=-0.0 size=     233kB time=00:00:02.40 bitrate= 796.0kbits/
frame=   48 fps= 22 q=-0.0 size=     309kB time=00:00:03.20 bitrate= 791.3kbits/
frame=   60 fps= 22 q=-0.0 size=     406kB time=00:00:04.00 bitrate= 831.6kbits/
frame=   72 fps= 22 q=-0.0 size=     501kB time=00:00:04.80 bitrate= 855.6kbits/
frame=   84 fps= 22 q=-0.0 size=     583kB time=00:00:05.60 bitrate= 853.4kbits/
frame=   96 fps= 22 q=-0.0 size=     664kB time=00:00:06.40 bitrate= 850.1kbits/
frame=  106 fps= 22 q=-0.0 size=     741kB time=00:00:07.06 bitrate= 858.5kbits/
frame=  114 fps= 21 q=-0.0 size=     806kB time=00:00:07.60 bitrate= 869.3kbits/
frame=  122 fps= 20 q=-0.0 size=     856kB time=00:00:08.13 bitrate= 862.0kbits/
frame=  130 fps= 20 q=-0.0 size=     894kB time=00:00:08.66 bitrate= 845.0kbits/
frame=  138 fps= 20 q=-0.0 size=     931kB time=00:00:09.20 bitrate= 829.1kbits/
frame=  140 fps= 20 q=-0.0 Lsize=     940kB time=00:00:09.33 bitrate= 825.1kbits/s dup=69 drop=0    
video:940kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%