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How can I extract audio from video with ffmpeg? - Stack ...
https://stackoverflow.com/questions/9913032/how-can-i-extract-audio-from-video-with-ffmpeg#:~:text=To%20extract%20the%20audio%20stream%20without%20re-encoding%3A%20ffmpeg,-vn%20-acodec%20copy%20output-audio.aac%20-vn%20is%20no%20video.
audio - ffmpeg merging mp3, mp4, no sound with copy …
https://superuser.com/questions/851977/ffmpeg-merging-mp3-mp4-no-sound-with-copy-codec
I have tried many other options, different codecs, changing other audio parameters, but I get no sound. The only way to get sound seems to be to leave audio at default, and that is too poor quality. ... Stream copy audio ffmpeg -framerate 25 -i %06d.png -i input.mp3 -c:v libx264 \ -vf scale=1280:-2,format=yuv420p -c:a copy -movflags +faststart ...
php - ffmpeg converting to mp4 without audio - Stack …
https://stackoverflow.com/questions/69928564/ffmpeg-converting-to-mp4-without-audio
I have a form that supposed to upload video and convert any uploaded video format to mp4. The issue is, when i tried to upload a video from iPhone .mov it is converted successfully but without audi...
Audio Transcoding using FFmpeg - Change Audio Codecs using ...
https://ottverse.com/transcode-audio-codec-ffmpeg-without-changing-video/
ffmpeg -i input_filename.avi -acodec mp3 -vcodec copy output_filename.avi Here, you are instructing FFmpeg to. read the input file named input_filename.avi that is in an avi media container that holds both the audio and video. copy the video content as is using the -vcodec copy parameter (no video re-encoding), use mp3 audio codec to re-encode ...
ffmpeg default audio codec instead of specifying it with ...
https://stackoverflow.com/questions/63439841/ffmpeg-default-audio-codec-instead-of-specifying-it-with-acodec-option
When I specify the used codec explicitly with -acodec it works fine: ffmpeg -f alsa -acodec pcm_s32le -i dmic_sv out.wav. And from the output ffmpeg will reencode to pcm_s16le. Input #0, alsa, from 'dmic_sv': Duration: N/A, start: 1597597938.887969, bitrate: 3072 kb/s Stream #0:0: Audio: pcm_s32le, 48000 Hz, stereo, s32, 3072 kb/s Stream ...
centos - ffmpeg -acodec copy does not copy all audio ...
https://unix.stackexchange.com/questions/207259/ffmpeg-acodec-copy-does-not-copy-all-audio-stream-to-the-new-container
ffmpeg -acodec copy does not copy all audio stream to the new container. Ask Question Asked 6 years, 7 months ago. Active 5 years, 9 months ago. Viewed 7k times 2 I wish i can find ffmpeg help here at stackexchange. I'd been re-encoding old videos to libx264 to save up some storage space, as I thought it should be working based on documentation ...
FFmpeg Codecs Documentation
https://ffmpeg.org/ffmpeg-codecs.html
For the documentation of the undocumented generic options, see the Codec Options chapter . To get more documentation of the libvpx options, invoke the command ffmpeg -h encoder=libvpx, ffmpeg -h encoder=libvpx-vp9 or vpxenc --help. Further information is available in the libvpx API documentation. Set bitrate in bits/s.
My Command Line Audio Video Workflows with FFmpeg
https://ahmadawais.com/ffmpeg-command-line-audio-video-workflows/
Extract audio stream from video without re-encoding# ffmpeg -i input-video.avi -vn -acodec copy output-audio.aac-vn is no video.-acodec copy use the same audio stream that’s already in there. Rotate a video with FFmpeg# # Rotate 90 clockwise: ffmpeg -i in.mov -vf "transpose=1" out.mov. For the transpose parameter you can pass:
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.
#468 (No audio tracks in QuickTime) – FFmpeg
https://trac.ffmpeg.org/ticket/468
Description. Description: No audio tracks in QuickTime. Version: 0.8.2 (via brew package manager) Steps that will reproduce the problem? Find a video that contains more than one audio track. ffmpeg -i _video.mkv -timestamp now -vcodec libx264 -acodec libfaac -alang eng video.m4v -acodec libfaac -alang ger -newaudio. open -a QuickTime video.m4v.
#1720 (ffmpeg with -vcodec copy -acodec copy creates …
https://ffmpeg.org/trac/ffmpeg/ticket/1720
MPEG: No audio stream found -> no sound. VIDEO: MPEG2 720x480 (aspect 3) 29.970 fps 7000.0 kbps (875.0 kbyte/s) Load subtitles in ./ ===== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2) ===== Audio: no sound
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