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How to mux two video/audio streams into one using …
https://stackoverflow.com/questions/5802333/how-to-mux-two-video-audio-streams-into-one-using-ffmpeg
Mix the audio tracks using sox, something like this (not tested): sox -M v1.mp3 v2.mp3 v3.mp3. Multiplex audio and video using ffmpeg. Try the following (also not tested): ffmpeg -i v1.flv -i v3.mp3 -vcodec copy -acodec copy v3.flv. If the commands aren't exactly right, hopefully the idea is clear. Share.
FFmpeg to the Rescue: Muxing Audio and Video Files ...
https://streaminglearningcenter.com/learning/ffmpeg-to-the-rescue-muxing-audio-and-video-files.html
Interestingly, FFmpeg converted the MP3 audio to AAC and muxed the file without so much as an informational message. Just for fun, I converted audio.mp3 into a wav file and tried this: ffmpeg -i video.mp4 -i audio.wav -c:v copy -c:a copy muxed.mp4. As before, FFmpeg converted the WAV file to AAC and produced the muxed file.
How to merge audio and video file in ffmpeg - Super User
https://superuser.com/questions/277642/how-to-merge-audio-and-video-file-in-ffmpeg
If your audio or video stream is longer, you can add the -shortest option so that ffmpeg will stop encoding once one file ends. Copying the audio without re-encoding If your output container can handle (almost) any codec – like MKV – then you can simply copy both audio and video streams: ffmpeg -i video.mp4 -i audio.wav -c copy output.mkv
Using ffmpeg to mux an arbitrary number of streams from ...
https://forum.videohelp.com/threads/292927-Using-ffmpeg-to-mux-an-arbitrary-number-of-streams-from-multiple-files
Code: ffmpeg -i a.avi -i b.avi -i c.avi. will give a list of input streams and their numberings. -map. has to start with the video stream, then follow it with audio streams. for each audio stream over 1, you need to input after output is set, audio parameters.. -newaudio.
How to mux or add audio track without re-encoding : ffmpeg
https://www.reddit.com/r/ffmpeg/comments/cufjv8/how_to_mux_or_add_audio_track_without_reencoding/
How to mux or add audio track without re-encoding. So, I've been trying to add an audio track as a 2nd track while I want the video quality untouched. Here's my command (cmd) ffmpeg -i 123.mkv -i 123.mka -c copy -map 0:v -map 1:a Output.mkv. The video and the track I'm adding but it also removed My first track and 3 subtitles.
ffmpeg - Mux mkv and dts file, change default audio stream ...
https://video.stackexchange.com/questions/19634/mux-mkv-and-dts-file-change-default-audio-stream-and-language
I want to mux (combine) two files into one mkv file. The first one is an mkv file that contains a video and an audio stream in German. The second one is an English audio stream in dts format.I want one mkv file that contains both audio channels, the English one being the first and default audio stream.. Here's the ffmpeg command I'm using so far:
conversion - FFMPEG convert video with multiple audio ...
https://video.stackexchange.com/questions/12051/ffmpeg-convert-video-with-multiple-audio-streams
If stream mapping is showing both audio tracks are present in the output file, then you should be able to select which track to play in the video player. By default, the best or first supported audio will play. If you want both audio tracks to play (" mux them together so they both play "), then mix the audio into one track.
ffmpeg Documentation
https://ffmpeg.org/ffmpeg.html
out1.mkv is a Matroska container file and accepts video, audio and subtitle streams, so ffmpeg will try to select one of each type. For video, it will select stream 0 from B.mp4, which has the highest resolution among all the input video streams. For audio, it will select stream 3 from B.mp4, since it has the greatest number of channels.
FFmpeg Formats Documentation
https://ffmpeg.org/ffmpeg-formats.html
You can select the output format of each frame with ffmpeg by specifying the audio and video codec and format. For example to compute the CRC of the input audio converted to PCM unsigned 8-bit and the input video converted to MPEG-2 video, use the command: ffmpeg -i INPUT -c:a pcm_u8 -c:v mpeg2video -f crc -.
obs-studio/ffmpeg-mux.c at master · obsproject ... - GitHub
https://github.com/obsproject/obs-studio/blob/master/plugins/obs-ffmpeg/ffmpeg-mux/ffmpeg-mux.c
floele obs-ffmpeg/ffmpeg-mux: Fix hang without global_stream_key. Loading status checks…. If DEBUG_FFMPEG_MUX is enabled, when starting a recording without configuring global_stream_key, obs-ffmpeg-mux will hang. Apply same check to global_stream_key as in init_params () to prevent this. * copyright notice and this permission notice appear in ...
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