Contents
Can you record audio in FFmpeg Stack Overflow?
I am able to record audio perfectly fine with the command: I’m getting a video with 0 audio channels, which I can check running FFmpeg/ffplay output.mpeg and no audible sound is played. The position of -ac 2 doesn’t change the behaviour, nor does repeating it only once.
How to set ffmpeg to 60fps for audio?
-framerate 60 tells ffmpeg the source is using 60fps. The option: video=”Decklink Video Capture”:audio=”Decklink Audio Capture” tells ffmpeg to use those device as input, but by specifying them in this fashion, the lag between audio and video will be substantially less (and/or gone).
Where do I find FFmpeg on my computer?
You do not have to create it inside the FFMPEG folder. It can be on a different drive or an external drive. Return to the Command Prompt window, and run the following command. This command will return a list of devices that can record or output audio. This will include speakers, mics, and webcams.
What are the acodec copy and Vcodec copies in FFmpeg?
The -acodec copy and -vcodec copy are there to ensure that the streams are taken as is, instead of doing any compression/transcoding. The only thing left to do (which is a work in progress atm) is creating a c# gui for this.
What’s the best way to start and end FFmpeg?
To start at 3s and end at 8s use -t 5. If you are using a current version of ffmpeg you can also replace -t with -to in the above command to end at the specified time. Try using this. It is the fastest and best ffmpeg-way I have figure it out:
What can a FFmpeg video converter do for You?
ffmpeg is a very fast video and audio converter that can also grab from a live audio/video source. It can also convert between arbitrary sample rates and resize video on the fly with a high quality polyphase filter.
What happens when no codec is specified in FFmpeg?
If no -codec option is specified for a stream type, ffmpeg will select the default encoder registered by the output file muxer. An exception exists for subtitles. If a subtitle encoder is specified for an output file, the first subtitle stream found of any type, text or image, will be included.