[FFmpeg-user] HW acceleration and ffmpeg

[vpstranger at tutanota.com]

So I assume there's no way of making it use HWA automatically via some build parameters without getting into the code, right? 
I'm using a video source filter which wraps itself around ffmpeg and I need it to do the HWA, which it does not. So if I had an auto-HWA-enabled ffmpeg build, I could build that filter against it and HWA would work.

12. Nov 2018 16:30 by harshil.makwana1991 at gmail.com <mailto:harshil.makwana1991 at gmail.com>:


> Hi,
>
> You need to specify hardware accelerator to ffmpeg.
>
> You can give hw acceleration name with 
> -hwaccel option to ffmpeg.
>
> And if you want to use it with any binary then its example code is located at :
>
> doc/examples/hw_decode.c or doc/examples/vaapi_encode.c or
> doc/examples/vaapi_decode.c file
>
> You can compile and use its binary.
>
> Thanks 
> Harshil
>
>> On 12-Nov-2018, at 6:11 PM, <>> vpstranger at tutanota.com <mailto:vpstranger at tutanota.com>>> > <>> vpstranger at tutanota.com <mailto:vpstranger at tutanota.com>>> > wrote:
>>
>> Hello! 
>> I have a couple of questions about ffmpeg tool. 
>> When I use the ffmpeg tool that was compiled with support of one of the hardware accelerators, will the tool automatically use this acceleration while working? Or it has to be explicitly specified somehow that it must be used? 
>> And if it attempts to use it, how do I check whether that attempt was successful?
>>
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