[Libav-user] Hardware encoder ARM input as device input

[Marcin Woźniak]

Writing to myself. Problem resolved. Wrong timebase.
Thanks.

W dniu 13.02.2018 o 13:56, Marcin Woźniak pisze:
> I am using HiSilicon 3516A board, there is no V4L device but other 
> approach using /dev/venc ioctl calls and MPP API.
> I am able to open the encoder, read raw H264 packets but no go, looks 
> like read_packet is called about 10 times slower than it should.
> If i move the code to outside of ffmpeg and open it as:
> dump_stream | ffmpeg -i - vcodec copy out.h264 //it works at good speed.
>
> Why libav is not calling read_packet as fast as it should?
> Marcin
>
>
>
> --------------------------------------------------------------------
> what board are you using? if there is already v4l2 support in the kernel
> it should be a matter of just calling the ffmpeg with the right encoding
> parameters
> below an example to encode an NV12 YUV format:
>
> $ ffmpeg -f rawvideo -pix_fmt nv12 -s:v 1280:720 -r 25 -i
> ~/Videos/raw/freeway.yuv -c:v h264_v4l2m2m out/out.h264.mp4
>
>
>
> _______________________________________________
> Libav-user mailing list
> Libav-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/libav-user

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ffmpeg.org/pipermail/libav-user/attachments/20180302/65bc9872/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: marcin_wozniak.vcf
Type: text/x-vcard
Size: 291 bytes
Desc: not available
URL: <http://ffmpeg.org/pipermail/libav-user/attachments/20180302/65bc9872/attachment.vcf>