Ffmpeg from Rockchip

Asuuga

Hi all !

I don't know if this has ever been tested here :
https://github.com/rockchip-linux/ffmpeg
This is a version of Ffmpeg from Jung Zhao and Yakir Yang that seems to achieve hardware decoding on our favourite RK3288. I tried to  test it on the new Lubuntu image from isle http://bbs.t-firefly.com/forum.php?mod=viewthread&tid=1405&extra=page%3D1

But I had no luck in making it work. The problem is that I don't know on which kernel it is supposed to run , and with what kernel drivers (vpu, gpu) it is supposed to work with.

If you want to give it a look, here is what I've tried to do :
- Follow the Readme from the git deposit to build ffmpeg and copy the libraries in libvpu/ folder to /usr/lib
- Install ffmpeg libraries generated in the "out" folder in /usr/local/lib and /usr/lib (by copying everything located in the "out" folder to these paths) - I don't know whether the libraries need to be in /usr/local/lib or /usr/lib, though only one is needed
- Run the Makefile in rk_ffmpeg_2.6.2/ffmpeg-decode-example/. Thad didn't work for me : the compilator complains about some member of a struct that does not exist. I had to checkout an older version of ffmpegexample.c, the version just before the RGA support addition commit :

1. git checkout 262c19e36c27910cd55efbd81937c3e393cfed06  rk_ffmpeg_2.6.2/ffmpeg-decode-example/ffmpegexample.c

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The run the Makefile with "make" command
- Stop ligthdm and try to launch a video with the newly generated executable :

1. /home/ubuntu/ffmpeg/rk_ffmpeg_2.6.2/ffmpeg-decode-example/ffmpegexample -i <video-file> -d 1

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As stated in the Readme of  ffmpegexample :

1. -t: 0 single thread; 1 enable multithread
   
2. -d: 0 no display; 1 display
   
3. -c: 0 forever running; n cycle n times

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The error I get is :

1. Input #-1, mov,mp4,m4a,3gp,3g2,mj2, from '/home/ubuntu/Videos/Tractor_500kbps_x265.mp4':
   
2.   Metadata:
   
3.     major_brand     : iso4
   
4.     minor_version   : 1
   
5.     compatible_brands: iso4hvc1
   
6.     creation_time   : 2014-08-25 20:31:31
   
7.   Duration: 00:00:10.00, start: 0.080000, bitrate: 488 kb/s
   
8.     Stream #-1:0(und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv), 1920x1080 [SAR 1:1 DAR 16:9], 485 kb/s, 25 fps, 25 tbr, 25k tbn, 25 tbc (default)
   
9.     Metadata:
   
10.       creation_time   : 2014-08-25 20:31:31
    
11.       handler_name    : hevc:fps=25@GPAC0.5.1-DEV-rev4807
    
12. demo parameters setting:
    
13.     input filename: /home/ubuntu/Videos/Tractor_500kbps_x265.mp4
    
14.     single thread: 1
    
15.     max list num: 1
    
16.     cycle num: 1
    
17.     display: 1
    
18.     save output frame: 0
    
19. failed to set crtc mode ret=-13
    
20. dma_node.dma_fd 0
    
21. failed to create fb ret=-22

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isle

hi Asuuage
this version of FFMPEG  need a  exclusive kernel version .It definitely not the same as firefly's.
so, You can't get it working on this firefly's firmware!

Asuuga

Hmm ok, too bad...

That would be good to know on which kernel this would work, just to test it !

Thanks for your reply Isle !