Questions tagged [FFmpeg] (318)

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Ffmpeg how to set multiple parameters?

Hi! Slaveway video using ffmpeg. According to the documentation you must first convert the video to mpg and then glue. Form a string with the arguments-i c:\vid.avi -qscale:v 1 c:\vid.mpg Next code video Then take votre video and do the same-i c:\vid2.avi -qscale:v 1 c:\vid2.mpg Then the second video coding. Then glue both ...
Immanuel_Effer asked March 27th 20 at 12:57
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Collect preview video files into a single image file?

There is a directory in which a certain amount of video in mp4 format. You want to get a image preview of each video and save the thumbs in a single file. Tell me, what is the means to implement it?
bridie.Wolf asked March 27th 20 at 12:36
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How to convert video in ffmpeg to preserve all the audio tracks?

I need convert video format to hevc with ffmpeg with the following parameters ffmpeg -y-i inpit.mkv-g 30 -c:a copy-c:v hevc_amf output.mkv and everything is fine. But found one nasty problem - if the video multiple audio tracks then only one of them remains. What key to specify to copy all of the tracks available in the fil...
Price_Mante asked March 25th 20 at 13:18
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How to save a screenshot from the rtsp stream?

When saving a screenshot using the ffmpeg libraries, 20% of the screenshots are not saved correctly than to fix it? Raspberry pi3, OS raspbian, using the nodejs module fluent-ffmpeg.var ffmpeg = require('fluent-ffmpeg'); var command = ffmpeg(); var proc = ffmpeg('rtsp://192.168.0.6:8554/') .outputOptions(['-f image2', '-vf...
kelsie.Williamson88 asked March 25th 20 at 13:11
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How to simultaneously capture video and audio using ffmpeg under Windows?

Trying to simultaneously capture video and audio using ffmeg for Windows. Other capture program can use - although if you have a console, then please recommend. I found quite a decent command line (with lots of parameters) and is of decent quality, but without sound. Need to add sound. About capture with sound written here:...
Khalid_Quigl asked March 25th 20 at 13:08
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Why ffmpeg is a different version of php in centos 7?

Have vps with installed centos 7 and isp manager. Initially is alternative php version 5.4. Changed isp in the version for Apache on 7.1. Also changed the version to 7.1 for the console itself. Put ffmpeg, but it is on version 5.4 instead of 7.1. How to put it on php version 7.1?
Jaron_Davis96 asked March 25th 20 at 13:00
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As for ffmpeg from multiple images and zoom to glue video?

There are several images. Need to zoom in every 2 seconds, for 10%, from the center, and then display each image for 5 seconds. And on top of each image to impose another particular png, and which should not participate in Zuma. Videos should be 640x480 One ffmpeg, is this possible to do? How? PS While there is an option to...
Remington.Legros asked March 25th 20 at 12:17
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Why igtv ouimet video quality?

Here are additional technical requirements for uploading videos to igtv:Video codecProgressive scan (not striped).High quality.Two consecutive B-frames.The closed structure of the group of frames (GOP). GOP of half the frame rate.KODAK.Color sub-sampling: 4:2:0.Audio codecChannels: stereo or stereo + 5.1.Sampling rate: 96 k...
Enola.Bednar90 asked March 25th 20 at 11:31
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How to make the watermark transparent and reduce the size of the image through scale2ref in ffmpeg?

trying to apply the watermark to the video ffmpeg -y-i shark.mp4 -i watermark1.jpg -filter_complex "[1]format=bgra,colorchannelmixer=aa=0.4,rotate=0:c=black@0:ow=rotw(0):oh=roth(0)[image1];[0][image1]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2" output2.mp4 so superimposed at the center of the picture, but more needs t...
ana.McDermo asked March 25th 20 at 11:29
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How to download a video without processing through the Instagram API?

https://github.com/mgp25/Instagram-API independently processes the video using ffmpeg, how to deactivate this?
Antwon_Nad asked March 24th 20 at 14:44