Hi all, I am doing something very basic. I have mp4 files and I select a portion (say from min 5 to 10), and save as.. with default options.
So I come up with a new .mp4 file (even letting avi muxer output container, on windows; while it saves as .avi on linux box, btw).
On those videoclips, when I play them with VLC, or just see metadata on windows folder, the video length is not shown anymore
(and I can't swipe the cursor along either!!).
How do I manage not to lose it or at least to fix it and recover after cutting videos?
I am available to give further details, I find these issues annoying and do not see what I am doing wrong.
thanks a lot, ricardo
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Which I supposed to be good..
Other than that for Windows there should be multiple alternatives:
for frame accurate cutting like MPEG StreamClip, SolveigMM Video Splitter 4 or similar.
one could even first remux to mkv using mkvmerge, use 'MKV Cutter' to cut the mkv and then remux to mp4.
For Linux mp4box&ffmpeg could be used for key-frame accurate cutting.
For next cuts I'll follow your post, and try other solutions, as Avidemux is broken to me.
However it is not apparent to me what to do to fix those clips I made to keep what I need from longer videos, unaware of this bug, or whatever may have that piece of software.
I can give you some information:
demuxing the file (I just checkmarked the audio and video file found within the container) reports exactly like this:
Begin: 01/07/2014 15:08:39, End: 01/07/2014 15:08:39, Difference: 00:00:00, STATUS: Complete
Command Line: "C:\Program Files\..\MP4Box.exe" -raw 0 "D:\temp\Video\myfile.mp4"
If I checkmark video only:
Difference: 00:00:00, STATUS: Error
[iso file] Incomplete box (.j.
Truncated file - missing 1121870614 bytes
Error opening file D:\temp\Video\myfile.mp4: IsoMedia File is truncated
If I add the file in mux tab and hit Mux:
Begin: 01/07/2014 15:12:18, End: 01/07/2014 15:12:18, Difference: 00:00:00, STATUS: Error
Unknown input file type
Error importing D:\temp\Video\myfile.mp4:fps=25.000:delay=0:name=m yfile.mp4: Corrupted Data in file/stream
Other info from video player: Input type AVC1(GVC) - Output type is YV12 - Audio AAC Stereo, Play channel: 6 channels
How is Mp4box supposed to do something? Should I be able to demux audio and video part and remux again hoping it will do the job finely?
I never did this things before, so I am just guessing (but this is apparent, as I am writing in this thread)
Thanks again for advicing about that..
Last edited by HeyRicardo; 1st Jul 2014 at 09:06.
IsoMedia File is truncated
try if running the file through ffmpeg first:
ffmpeg -i "D:\temp\Video\myfile.mp4" -vcodec copy -acodec copy ffmpegOutput.mp4
The output file is thoroughly fixed, beyond my expectations )
For new cuts I have tried solveigMM video splitter and results are very good.
But I am willing to try out other tools as well, which you pointed out to me.
In particular, about linux, you said I could use ffmpeg+mp4box.
You probably meant that I could cut using ffmpeg and (re)mux using mp4box;
I also hope I can fix cuts using ffmpeg the same way I did right now with the command you gave me.
Best regards, and a very big thank you!