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Encode flv video with no audio with ffmpeg - Stack Overflow
https://stackoverflow.com/questions/10152910/encode-flv-video-with-no-audio-with-ffmpeg
Encode flv video with no audio with ffmpeg. Ask Question Asked 9 years, 9 months ago. Active 9 years, ... If the source file has no audio stream, then FFmpeg is not supposed to attempt to transcode an audio stream. ... Perhaps there is a NULL audio tag for some reason. Would you be able to make a small sample available for study? Share. Improve ...
ffmpeg - ffprobe select audio and video streams - Stack ...
https://stackoverflow.com/questions/41115917/ffprobe-select-audio-and-video-streams
I had a similar scenario where I wanted to limit the output of ffprobe -show_frames to a specific audio and video streams. It seems that -select_streams cannot accept more than 1 stream_specifier nor can it be provided multiple times for the same ffprobe command. Moreover, ffprobe do not accept the -map parameter like ffmpeg does. This parameters allows ffmpeg to …
ffplay Documentation - FFmpeg
https://ffmpeg.org/ffplay.html
stream_type is one of following: ’v’ or ’V’ for video, ’a’ for audio, ’s’ for subtitle, ’d’ for data, and ’t’ for attachments. ’v’ matches all video streams, ’V’ only matches video streams which are not attached pictures, video thumbnails or cover arts.
osx - How to show number of available streams using ffmpeg ...
https://video.stackexchange.com/questions/21621/how-to-show-number-of-available-streams-using-ffmpeg
You can also filter for video or audio streams by adding -select_streams v or -select_streams a, respectively. See the manual for more details. If you do not have ffprobe, ffmpeg can be used too, but in a slightly less robust way (i.e., this may break if the output format changes or something contains the words "Stream #" in the output):
FFmpeg: rearrange audio streams in video files - BlogX
https://blogx.ch/blog/technology/ffmpeg-rearrange-audio-streams-in-video-files-950/
First run the command ‘ffprobe <your file name>’ in your ‘Terminal’. At the end of the Terminal output you will get something like the following. In this example you can see the following. The multimedia file contains three streams …
Extracting/Transcoding/Adding Video Streams Using …
http://nomone.com/2016/10/23/extractingtranscodingadding-video-streams-using-ffmpeg/
To extract the audio stream: ffmpeg -i input.mp4 -map 0:1 -c:a copy output.aac Notice the .aac extension of the output file. FFmpeg normally tries to deduce the desired file format from the output file extension. Then, it transcodes the input into that format. So, if we just did: ffmpeg -i input.mp4 -map 0:1 output.aac FFmpeg will decode the input stream, encode it …
1st video stream, 2nd audio stream, all subtitles
https://unix.stackexchange.com/questions/245937/re-encoding-video-with-ffmpeg-including-all-subtitles-but-not-all-audio
To disable this behavior and manually choose desired streams use the -map option. These examples use -c copy to stream copy (re-mux) from the input to to the output. No re-encoding occurs. Stream copy all streams ffmpeg -i input -map 0 -c copy output 1st video stream, 2nd audio stream, all subtitles
#386 (Missing audio and subtitle streams in vob file) – …
https://ffmpeg.org/trac/ffmpeg/ticket/386
About the problem with your testclip: there might be no audio because audio stream might show up later in the file (your testclip is only ~1MB long, audio might begin at 6MB). The sample does contain audio, FFmpeg does not see it because audio starts several seconds after video (which is perfectly ok for a mpeg/vob file).
FFmpeg Live Streaming: What ... - Online Video Hosting
https://www.dacast.com/blog/how-to-broadcast-live-stream-using-ffmpeg/
As far as live video stream software goes, FFmpeg provides a relatively wide variety of tools. FFmpeg supports many video and audio inputs that are accessible to your computer. These include webcams, USB microphones, and cameras that connect via capture cards. Additionally, you can specify an output as an RTMP stream aimed at your s treaming …
Unable to set path for ffmpeg on tartube (win) : youtubedl
https://www.reddit.com/r/youtubedl/comments/snodj3/unable_to_set_path_for_ffmpeg_on_tartube_win/
Instead of having a line that describes each quality stream as using both video and audio codecs, there is instead a block of code that seems to declare the audio as a 'AUDIO GROUP' and then goes onto list streams that all just VIDEO ONLY.
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