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alsa - Merge two audio sources with x11grab, possible ...
https://unix.stackexchange.com/questions/80905/merge-two-audio-sources-with-x11grab-possible
Input 0's audio stream number 0. (internet radio) [1:a:0] Input 1's audio stream number 0. (microphone) amix=inputs=2 Mix together two audio streams, if no input streams are defined, it autoselects two, so in this instance, you should be able to leave out the above two definitions.; Start a new filter chain [3:v:0] Input 3's video stream number ...
[solved]ffmpeg x11grab fail (screencast/streaming ...
https://bbs.archlinux.org/viewtopic.php?id=137153
To join combine the audio and video in a single file, just type: $ ffmpeg -i output.wav -i output.mp4 -sameq output.mp4. Again, the improper usage of the -sameq option, and the command will re-encode the audio and video with lossy encoders, and therefore degrade the output quality instead of simply muxing them:
Screen Recording With Webcam Overlay Using Ffmpeg
https://girishjoshi.io/post/screen-recording-with-webcam-overlay-using-ffmpeg/
Capture audio along with the screen grab. If we want to include audio as well (in this case we will use pulse). ffmpeg -video_size 1366x768 -framerate 25 -f x11grab -i :0.0 -f pulse -ac 2 -i default screen-cap.mp4 Using x264 for output. Using libx264
Screen capture WITH audio in ffmpeg - Stack Overflow
https://stackoverflow.com/questions/29478548/screen-capture-with-audio-in-ffmpeg
I am able to record audio perfectly fine with the command: FFmpeg/ffmpeg -f alsa -ac 2 -i pulse -- output.wav However, when I try both screen capture and audio, like this: FFmpeg/ffmpeg -video_size 800x600 -framerate 25 -ac 2 -f x11grab -i :0.0+0,0 -ac 2 -f alsa -i pulse -ac 2 -acodec copy output.mpeg -ac 2
[SOLVED] how to use ffmpeg x11 grab inside windows
https://www.linuxquestions.org/questions/linux-newbie-8/how-to-use-ffmpeg-x11-grab-inside-windows-917907/
Rep: how to use ffmpeg x11 grab inside windows. [ Log in to get rid of this advertisement] i am using windows xp . i like ffmpeg especially its desktop recording in mpeg format without any loss of information . Code: ffmpeg -f x11grab -i :0.0 /tmp/out.mpg. I think X server does not run in xp . Is there a work around to use ffmpeg for desktop ...
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