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c++ - I am using ffmpeg library in my program to record ...
https://stackoverflow.com/questions/30836637/i-am-using-ffmpeg-library-in-my-program-to-record-video-and-audio#:~:text=You%20can%20configure%20for%20video%20codec%20as%20MPEG4,quality%20may%20be%20slightly%20less%20than%20other%20format.
Can FFmpeg Sync Audio And Video? Solved!
https://videoconverter.wondershare.com/sync-audio/ffmpeg-sync-audio-and-video.html
When audio is ahead of the video, the -async option, when provided as -async 1, automatically corrects the start of the audio stream. Follow this syntax to sync the audio with the video. ffmpeg -async 1 -i input.mpg <encoding options> 3. Manually Correcting Time-Shift
FFMPEG Fix Audio Sync – Uly.me
https://uly.me/ffmpeg-fix-audio-sync/
If you have a video with audio sync issues, you can easily fix it using ffmpeg. It takes 2 inputs: the filename and delay: 0.100 is 100 ms or 0.1 seconds. Output file has -fixed appended to it. It’s fast. Only takes 2-3 seconds to process a 1.5 hour recording. Here’s the script.
Audio Video Sync With ffmpeg - Stack Overflow
https://stackoverflow.com/questions/13902507/audio-video-sync-with-ffmpeg
It has audio/video synchronization problems. The video is going to fast, and audio is good. Video has strange frame rate: 26.07 fps. How can I fix the video stream using ffmpeg. At the start of the video the sync is ok but at the end of the video stream there are about 5 min of audio left and it's playing with black screen.
Correcting for audio/video sync issues with the ffmpeg ...
https://tdngan.wordpress.com/2015/10/13/correcting-for-audiovideo-sync-issues-with-the-ffmpeg-programs-itsoffset-switch-2/
But sometimes during a conversion to another file format (such as mp4), the audio and video will not remain in sync and the itsoffset switch can be used to adjust them. The itsoffset switch is nearly always used in conjunction with the “map” switch, since this tells ffmpeg which stream you want to affect, and what streams you wish to merge ...
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