When the application finishes the conversion it sends a desktop notification files that have been converted also have a Finished text next to them in the MistiQ user interface. Once the files have been added, click the Convert button from the MystiQ toolbar and the transcoding beings.

Since this involves compressing the file, it will take (much longer) than the first method.Advanced: Want to use custom settings for the output format? Click the Edit button next to Preset (or double click a video already added to MystiQ), and you'll access the Conversion Parameters dialog (screenshot above) from where you can choose from many options, including audio and video bitrate, insert subtitles, rotate the video, set the video height and width, and even add additional FFmpeg command line options. h264 video and aac audio compression: ffmpeg -i input1.mp4 -i input2.avi -c copy -map 1:v:0 -map 0:a:0 -shortest -c:v mpeg4 -c:a aac output.mp4 If you want to convert (and compress) the file in one operation, you can use this one-liner to export an MP4 file with. Note that this is a lossless (and fast) procedure, it will just copy the content from the source files. The output.avi file will have the same video content as input2.avi, but with audio from input1.mp4. Then you can use this one-liner to copy the audio from one file to the other: ffmpeg -i input1.mp4 -i input2.avi -c copy -map 1:v:0 -map 0:a:0 -shortest output.avi input2.avi = analysis video without audio.

A better solution is to use FFmpeg, the swizz-army knife of video processing.Īs long as you know that the audio and video files you want to combine are the same duration, this is an easy task. Many people would probably reach for a video editor, but the problem is that you would most likely end up recompressing both the audio and video file. So I need to add the audio track by copying either from the source video file or from a separate audio file.

When working with various types of video analysis, I often end up with video files without audio.

Merge audio and video ffmpeg gui