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A quick guide to using FFmpeg to convert media files ...
https://opensource.com/article/17/6/ffmpeg-convert-media-file-formats#:~:text=It%20can%20be%20very%20time%20consuming%20to%20re-encode,encodes%20the%20Vorbis%20audio%20stream%20into%20a%20FLAC.
Ffmpeg to duplicate an audio stream and encode this …
https://stackoverflow.com/questions/21567029/ffmpeg-to-duplicate-an-audio-stream-and-encode-this-new-stream
A video with two audio streams. Creating a third audio stream by encoding the first. ffmpeg -i INPUT.mkv -strict -2 -map 0 -c copy -map 0:a:0 -c:a:2 aac -b:a 384k -ac 2 OUTPUT.mkv. Again a video with two audio streams, but you want to encode the second one. ffmpeg -i INPUT.mkv -strict -2 -map 0 -c copy -map 0:a:1 -c:a:2 aac -b:a 384k -ac 2 OUTPUT.mkv
conversion - FFMPEG convert video with multiple audio ...
https://video.stackexchange.com/questions/12051/ffmpeg-convert-video-with-multiple-audio-streams
-c:a -> select best supported audio (transcoded) -c:a copy -> best supported audio (copied) -map 0:a -> all audio from 1st input file (transcoded) -map 0:0 -> 1st stream from 1st input file (transcoded) -map 1:a:0 -> 1st audio stream from 2nd input file (transcoded) -map 1:a:1 -c:a copy -> 2nd audio stream from 2nd input file (copied)
FFmpeg
News January 17th, 2022, FFmpeg 5.0 "Lorentz" FFmpeg 5.0 "Lorentz", a new major release, is now available!For this long-overdue release, a major effort underwent to remove the old encode/decode APIs and replace them with an N:M-based API, the entire libavresample library was removed, libswscale has a new, easier to use AVframe-based API, the Vulkan code was …
using ffmpeg to extract audio from video files · GitHub
https://gist.github.com/jeffersonvventura/cff5b855d10a7159eb5f587cc8d1e279
using ffmpeg to extract audio from video files. GitHub Gist: instantly share code, notes, and snippets.
ffmpeg Documentation
https://ffmpeg.org/ffmpeg.html
Stream handling is set via the -codec option addressed to streams within a specific output file. In particular, codec options are applied by ffmpeg after the stream selection process and thus do not influence the latter. If no -codec option is specified for a stream type, ffmpeg will select the default encoder registered by the output file muxer.
FFmpeg Codecs Documentation
https://ffmpeg.org/ffmpeg-codecs.html
Use ffmpeg to convert an audio file to VBR AAC in an M4A (MP4) container: ffmpeg -i input.wav -codec:a libfdk_aac -vbr 3 output.m4a Use ffmpeg to convert an audio file to CBR 64k kbps AAC, using the High-Efficiency AAC profile:
Convert audio files to mp3 using ffmpeg - Stack Overflow
https://stackoverflow.com/questions/3255674/convert-audio-files-to-mp3-using-ffmpeg
You could use this command: ffmpeg -i input.wav -vn -ar 44100 -ac 2 -b:a 192k output.mp3. Explanation of the used arguments in this example: -i - input file. -vn - Disable video, to make sure no video (including album cover image) is included if the source would be a video file. -ar - Set the audio sampling frequency.
Correcting Audio and Video Stream Times : ffmpeg
https://www.reddit.com/r/ffmpeg/comments/smaadg/correcting_audio_and_video_stream_times/
Correcting Audio and Video Stream Times. Hoping someone can shine a little on an ffmpeg command that will help me bulk align my video files. We use a recording applications (SwiftCapture, QuickTime, Mimo etc) across a lot of varieties of hardware (Blackmagic) and OS versions on Macs. We are seeing ever so slight variances of the video files ...
h.264 - ffmpeg usage to encode a video to H264 codec ...
https://stackoverflow.com/questions/5678695/ffmpeg-usage-to-encode-a-video-to-h264-codec-format
wget http://ffmpeg.org/releases/ffmpeg-0.11.2.tar.bz2 tar --bzip2 -xvf ffmpeg-0.11.2.tar.bz2 cd ffmpeg-0.11.2/ ./configure --enable-libx264 --enable-gpl make sudo install Now finally you have the libx264 codec to encode, to check it you may run
How to Remove Audio from Video using FFmpeg ... - OTTVerse
https://ottverse.com/add-remove-extract-audio-from-video-using-ffmpeg/
Here’s how you add an audio track to your video using FFmpeg. Since you have already read about the map command in the previous section, this should be very easy. Here is the command line. ffmpeg \ -i video.mp4 \ -i audio.mp3 \ -c copy \ -map 0:v:0 \ -map 1:a:0 \ videoWithAudio.mp4. This is very easy to understand.
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