[FFmpeg-user] Screen capture without sound

[桃源老師]

Hello Thilo-san,  Thanks for reply.

> 2016/03/05 0:58 A.M. Thilo Borgmann <thilo.borgmann at mail.de> wrote:
> 
> Am 04.03.16 um 12:28 schrieb 桃源老師:
>> 
>>> Please test without the scale filter (only crop) or 
>>> reduce the screen resolution.
>> 
>> Unfortunately, with above condition, I can't get good audio.
>> 
>> I'm now thinking desktop recording with ffmpeg is not possible yet...
> 
> The avfoundation device is under reconstruction. It includes cooperation
> with several people and it seems it is not on the edge of being finished.

OK.  It's interesting information.

> For the time being you might checkout "avf2" or "avfarc" branch on my
> github repo:
> 
> https://github.com/thiloborgmann/FFmpeg

I'd like to confirm my git operation is correct or not.  Here's console log.  Would you please check them?

$ git clone https://github.com/thiloborgmann/FFmpeg.git
Cloning into 'FFmpeg'...
remote: Counting objects: 438270, done.
remote: Compressing objects: 100% (8/8), done.
remote: Total 438270 (delta 3), reused 0 (delta 0), pack-reused 438262
Receiving objects: 100% (438270/438270), 171.74 MiB | 2.03 MiB/s, done.
Resolving deltas: 100% (342404/342404), done.
Checking connectivity... done.

$ cd FFmpeg/

$ git branch -a
* master
  remotes/origin/HEAD -> origin/master
  remotes/origin/avf2
  remotes/origin/avfarc
  remotes/origin/avfaudio
  remotes/origin/avfrate
  remotes/origin/cgdisplay
  remotes/origin/coreimage
  remotes/origin/foundation
  remotes/origin/master
  remotes/origin/oldabi
  remotes/origin/release/0.10
  remotes/origin/release/0.11
  remotes/origin/release/0.5
  remotes/origin/release/0.6
  remotes/origin/release/0.7
  remotes/origin/release/0.8
  remotes/origin/release/0.9
  remotes/origin/release/1.0
  remotes/origin/release/1.1
  remotes/origin/release/1.2
  remotes/origin/release/2.0

$ git checkout -b avf2 origin/avf2
Branch avf2 set up to track remote branch avf2 from origin.
Switched to a new branch 'avf2'

> The avf2 implementation is far superior to what is currently in FFmpeg
> but I cannot guarantee that all your problems are solved.

I will try.

> If needed you should easily be able to rebase all the patches there to
> current FFmpeg git HEAD.

I clone your mirror.  (Am I understand correctly?)

> p.s. Audio frame drops happen more often the more video processing you
> do during capturing. Thus all video processing should preferably be done
> after capturing.

OK.  Then should I capture raw video and raw audio?
What container should be used?

Anyway I will try your branch first.   Then consider separation of capturing and processing.


Best Regards,


// Miya aka. TougenRoushi

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