[FFmpeg-user] bananapi cedrus h264 hardware encoder yields 0-byte size file

[Daniel Kučera]

Hi Cedric,

this code is tested and working on OrangePi Zero and PC (Allwiner H3,
H2+). You may try gstreamer plugin if this will work for you:

https://github.com/ebutera/gst-plugin-cedar

2018-05-18 9:05 GMT+02:00 cedric.dewijs at telfort.nl <cedric.dewijs at telfort.nl>:
> Hi all,
> I'm trying to hardware encode a h264 file on my bananapi with an allwinner A20 SOC. I get a .h264 file that has a size of 0 bytes.
> I use the following source:
> https://github.com/danielkucera/FFmpeg/tree/cedrus264
> configured in the following way:
> ./configure --prefix=/usr --enable-nonfree --enable-gpl --enable-version3 --enable-vdpau --enable-libx264 --enable-libmp3lame --enable-libpulse --enable-libv4l2
> running with the following command line:
> cedric at bananapi:~/FFmpeg$ ./ffmpeg -fflags +igndts -f v4l2 -input_format mjpeg -s 1280x720 -i /dev/video0 -pix_fmt nv12 -c:v cedrus264 output.h264
> ffmpeg version N-86245-gcd67ff8 Copyright (c) 2000-2017 the FFmpeg developers
>   built with gcc 5.4.0 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 20160609
>   configuration: --prefix=/usr --enable-nonfree --enable-gpl --enable-version3 --enable-vdpau --enable-libx264 --enable-libmp3lame --enable-libpulse --enable-libv4l2
>   libavutil      55. 63.100 / 55. 63.100
>   libavcodec     57. 96.101 / 57. 96.101
>   libavformat    57. 72.101 / 57. 72.101
>   libavdevice    57.  7.100 / 57.  7.100
>   libavfilter     6. 90.100 /  6. 90.100
>   libswscale      4.  7.101 /  4.  7.101
>   libswresample   2.  8.100 /  2.  8.100
>   libpostproc    54.  6.100 / 54.  6.100
> Input #0, video4linux2,v4l2, from '/dev/video0':
>   Duration: N/A, start: 66666.522955, bitrate: N/A
>     Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 1280x720, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
> File 'output.h264' already exists. Overwrite ? [y/N] y
> Stream mapping:
>   Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (cedrus264))
> Press [q] to stop, [?] for help
> [swscaler @ 0x2ea8010] deprecated pixel format used, make sure you did set range correctly
> [VDPAU SUNXI] VE version 0x0000 opened.
> Output #0, h264, to 'output.h264':
>   Metadata:
>     encoder         : Lavf57.72.101
>     Stream #0:0: Video: h264 (cedrus264), nv12, 1280x720, q=2-31, 200 kb/s, 30 fps, 30 tbn, 30 tbc
>     Metadata:
>       encoder         : Lavc57.96.101 cedrus264
> More than 1000 frames duplicated
> Cheers,
> Cedric
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-- 

S pozdravom / Best regards
Daniel Kucera.