Reverse Downloaded Video with Free Software Avidemux

Reverse Video with free software : Avidemux

Some video and sound in reverse sequence. Meaning the end start first.
So there is a need to reverse it back to normal sequence.


Free software required for computer:

Avidemux 2.5.6  (has reverse filter) https://sourceforge.net/projects/avidemux/files/avidemux/2.5.6/
Avidemux 2.6 (support latest video format if having problem open video) https://sourceforge.net/projects/avidemux/files/avidemux/2.6.12/
Audacity (to reverse audio) http://www.audacityteam.org/

Note: Scan downloaded files.

Preparation:  

Use latest Avidemux to convert video file to supported format by Avidemux 2.5.
Video codec such as MPEG 4 ASP (Xvid).
Sound as PCM.

Format as avi.

Some suggest raw format such as Huffyuv. But this might not work if the file size is too large.




STEP 1: Export the audio with Avidemux

Open the video file and export the sound.
Audio codec as PCM.
Save file as sound(reverse).wav

STEP 2: Reverse the audio with Audacity
Open the sound file (sound(reverse).wav).
Under effect, choose reverse. To reverse audio.

Save the sound  as soundcorrected.wav


STEP 3: Save the video without audio with Avidemux 2.5

With Avidemux open the video file.
Under Audio, choose Main Track.






Select Audio source to None.



Save the video file as video(reverse) no sound.avi





STEP 4: Reverse the video with Avidemux 2.5
Open video(reverse) no sound.avi.
Under Video click Filters...



Choose Reverse and add with plus sign. Then close. Avidemux will reverse video.

 Save the file as Full movie corrected (no sound).avi.





STEP 5: Combine the video and audio with Avidemux 2.5

Open the Full movie corrected (no sound).avi.
Under Audio choose Main track.
Select Audio source as external wav.
Import the corrected audio file. (soundcorrected.wav)


Select appropriate video and audio codec.
MPEG 4 ASP
AC3

Then save video file with sound to intended format. eg. avi.



STEP 6: Watch or edit the video

Finally the video and sound is corrected to actual sequence.
Watch the video reverse of the reverse video.