[Libav-user] From buffer encoding

MIhajlo Jovanovic mihajlo.jovanovic at rt-rk.com
Mon May 8 16:55:11 EEST 2017

Thanks David for replay,

Maybe my question should be better defined, I know that my platforms 
Adreno 530 GPU supports certain hardware accelerated encoding for both 
h.264 and h.265, but I failed to find any API for access it, so I was 
wondering is it integrated and supported in ffmpeg?


On 08.05.2017. 15:36, David Yuan wrote:
> Based on this a little dated announcement on Qualcomm, 
> https://www.qualcomm.com/news/releases/2015/08/12/qualcomm-introduces-next-generation-gpu-architecture-and-image-signal, 
> it supports 60FPS HEVC decoding, but no where it mentions about its 
> capability to encode in HEVC.
> Qualcomm Introduces Next-Generation GPU Architecture and ... 
> <https://www.qualcomm.com/news/releases/2015/08/12/qualcomm-introduces-next-generation-gpu-architecture-and-image-signal>
> www.qualcomm.com
> Qualcomm Incorporated (NASDAQ: QCOM) today announced that its 
> subsidiary, Qualcomm Technologies, Inc. (QTI), has introduced its 
> next-generation visual processing ...
> I think your question could be better answered at Qualcomm's 
> developer's forum. And if the answer is yes the Adreno 530 GPU does 
> support HW encoding for HEVC, the next stop is here to ask the ffmpeg 
> developers whether that is integrated into ffmpeg.
> Please let me know if you find out the answer, as I'm interested in 
> knowing too.
> thanks!
> David
> ------------------------------------------------------------------------
> *From:* Libav-user <libav-user-bounces at ffmpeg.org> on behalf of 
> MIhajlo Jovanovic <mihajlo.jovanovic at rt-rk.com>
> *Sent:* May 8, 2017 8:29 AM
> *To:* libav-user at ffmpeg.org
> *Subject:* [Libav-user] From buffer encoding
> Hello everyone,
> I have multiple questions that I couldn't find answers for. I am 
> hoping that I'll get any answers here.
> So, I am working on Qualcomm Snapdragon 820 android platform, I have 
> 6(!!) cameras attached on it, I have camera library
> that supplies me with 30 raw 1280*720 yuv422 (UYVY) frames per sec in 
> vector/buffer format. I need them to convert into h.264/5 video for 
> real time(!!!) streaming.
> 1:
>     Does ffmpeg supports HW acceleration for This device? I couldn't 
> completely find answer for that here: 
> https://trac.ffmpeg.org/wiki/HWAccelIntro.
> HWAccelIntro – FFmpeg <https://trac.ffmpeg.org/wiki/HWAccelIntro>
> trac.ffmpeg.org
> FFmpeg provides a subsystem for hardware acceleration. Hardware 
> acceleration allows to use specific devices (usually graphical card or 
> other specific devices) to ...
> 1.1:
>     And if doesn't support HW acceleration, is it possible to achieve 
> real-time encoding without it.
> 2:
>     Is it possible to encode separate frames not from file? I am 
> asking this because I got hard time with nonexistent appropriate 
> documentation doing this in MediaCodec.
> I would much appreciate if got any answers before i step deeper in 
> ffmpeg API-s also any help or guidance too.
> Best Regards.
> Oljahim.
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> Libav-user mailing list
> Libav-user at ffmpeg.org
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