WebAug 3, 2013 · 8. I don't know that much about FFmpeg but after some Googling I found that you can use -acodec copy as parameter to simply take the audio from the source file. Share. Improve this answer. Follow. answered Aug 3, 2013 at 10:31. Marlinc. 771 1 6 18. See the documentation on stream copying for more information. WebSep 22, 2024 · ffmpeg -i video.mp4 -vcodec h264 -b:v 932k -b:a 128k output.mp4. This may not necessarily preserve the quality of the original video, and the size may not necessarily be the same, but you will have the exact same average bitrate. If you want to preserve the exact quality, use -crf 0 for a lossless output, but the filesize may be a lot bigger.
video processing - ffmpeg keep framerate as source - Stack Overflow
WebNov 3, 2024 · For any old videos I have the bit rate is probably going to be lower than that so upconverting is going to increase the file size a little. Is there any way to convert to aac but keep the old bit rate? Here's what I was trying but it keeps converting the old mp3 89kbps stream to aac 128 kbps: ffmpeg -i test.mp4 -acodec aac -vcodec copy test.aac.mp4 WebJan 9, 2024 · See a list of encoders with ffmpeg -encoders; See what audio sample formats (bit depth) an encoder supports with ffmpeg -h encoder=pcm_s16le; Or manually set the … how to switch to uber business profile
Converting Video Formats with FFmpeg - ACM Digital Library
WebApr 8, 2024 · If you just want to copy the metadata from an input file to an output file, you should use the -map_metadata option: ffmpeg -i a.MOV -map_metadata 0 -c copy c.MOV. The file specifier is a zero-indexed number, so '0' takes the metadata from the first input file. Note that -map_metadata and -movflags can be used in conjunction to preserve more ... WebApr 16, 2024 · How can I limit bitrate of a transcoding video in FFMPEG to keep it under a limit value? Stack Overflow. About; Products ... -b set video and audio's average bit rate per second – alireza akbaribayat. Mar 12, 2024 at 15:00 ... Select minimum of Original and Specified Bitrate. WebOct 16, 2013 · May not be what you mean, but you can use the "copy" codec to have ffmpeg extract the audio from a video, basically just demuxing it, no conversion made. e.g., (assuming the video uses AAC audio) Code: ffmpeg -i %1 -vn -acodec copy %1.aac. But if you're changing the audio codec, you do need to specify a bitrate, as there isn't a … how to switch to unlocked phone