[FFmpeg-user] Screen capture without sound

桃源老師 xanadu6291 at dream.jp
Sat Mar 5 08:04:00 CET 2016

> 2016/03/05 3:12 A.M. Thilo Borgmann <thilo.borgmann at mail.de> wrote:
> Am 04.03.16 um 17:51 schrieb 桃源老師:
>> I'd like to confirm my git operation is correct or not.  Here's console log.  Would you please check them?
> If you see the same history on the web as in your local repo clone,
> everything should be fine.

I have confirmed SHA of https://github.com/thiloborgmann/FFmpeg/commits/avf2

Then I build ffmpeg normally and tested.  Unfortunately the result video's screen resolution is strange and the video's audio is just a noise...  :-(
I don't know what is wrong...

The command I run is as follows:
$ ffmpeg -f avfoundation -i "1:0" -vf "scale=1280:800,crop=1280:720:0:40" -c:v libx265 -preset ultrafast -x265-params crf=25 -c:a libfdk_aac -b:a 160k test.mkv

The result video is uploaded to:

>> OK.  Then should I capture raw video and raw audio?
>> What container should be used?
> Either use rawvideo if the resolution is not too high or use a very fast
> and "simple" video encoder - like mpeg2, maybe mpeg4. Audio can be kept
> in raw format for the time being.

Thank you for teach me.

> I use almost the same hardware btw and it is possible to get "good"
> recordings out of it. They will even be better after reconstruction is
> finished.

My MacBook Pro is Retina Display model.  Is it related with the strange screen resolution of result video?

Best Regards, 

// Miya aka. TougenRoushi
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