MP4 to AVI, there is 'hesitation' of the camera movement in the movie
After converting from MP4 to AVI (using AVS converter or river past - almost same results), in the resulting video, when the camera moves in there, it constantly pauses, or something like hesitating to move. Actually what i really mean is when the camera moves in the movie.....it is constantly pausing in less than a second. but when the camera is focused on something, like a person in the movie, it seems that there is no problem, or if this is not the case then i just can't notice it.
Or if that is not the case, the resulting video has no video, only audio.
can someone help me? is there any codec problems here? but i have converted from mp4 to avi once and there is no problem but now i am having this results.
+ Reply to Thread
Results 1 to 21 of 21
idk but i see the same with my hv20 hd camcorder. its the nature of its design im afraid
Originally Posted by dzsoul
What is the source file ? Specs (framerates etc)
What codec did you use for the AVI file ? Specs of the avi file ?
Can you post a sample of the same frames from each file ?
Did you do anything silly, like change the framerate, during conversion ?
You might also try converting with something like Xvid4PSP instead
i have tried about 5 mp4 files.
the mp4 was converted into an xvid avi. i have not changed anything, like the framerate or whatever that is.
i can't post samples right now, maybe at a later time but what sample do you mean? from the mp4 or from the avi file?
Both - the same frame ranges would be good - something for comparison and that shows the problem.
You should also install media info and post some information about both the source and output files. Otherwise you might as well find something else to do with your time, because if you can't give us this information, there isn't much we can do to help you.
thank you so much! ill do that some other time. im really quite busy right now.
I'll give you an example, from mp4 to xvid avi. The result has a black screen video but the audio is fine.
This is the trailer of Transformers 2.
Here is the input (mp4 file):
And the result (xvid avi):
I used River past to convert it.
If I use AVS converter, here is the result:
(to be uploaded)
The result has video and audio, but the video seems not right. what i mean is that it looks like the video skips some frames(literally). Maybe you can't distinguish the video from the original here, because the trailer has many flashy parts.
I changed the size of the video(1280x720 to 720x400) but the results are the same if i do not change the size of the video.
(i changed the size here because i want to play it in my dvd player and i have tried to convert it without changing it the size).
You can use avidemux. I tested your input, it works fine, no "hesitation". This method below works fine and looks similar to the input file.
BTW, your "output" file only showed a black screen and had an weird frame rate 23.94 (the original was 23.976) so that might explain some of the "hesitation"
1) open the video, it warns you about b-frames and a safe mode, say yes
2) video=>xvid , audio=> mp3 , format=>avi
3) press save with extension (e.g. "myfile.avi")
Feel free to configure the options (e.g. bitrate, filters etc...)
If you get choppy playback, it might be because your system memory is way too low (512mb) if your listed specs are correct
Here is the video resized to 720x400 using that method
im sorry i havent uploaded yet the result of the AVS converter. ill try your suggestions. thanks!
btw, the input has no 'hesitation' of course, what i mean is the results, the AVI.
Depends on what s/w you're using to to watch it on the PC (assuming thats where you detected the problem) and whether or not you selected packed bitstream in creating the AVI.
If so, it's apparently a well-known problem with Windows VFW based s/w and non packed bitstream xvid in avi.
Ok, to make things more clearer,
When i use Riverpast Video Cleaner, its results are fine except when it gives me a result wherein there is no video, only blackscreen with audio.
When i use AVS Video Converter, its results gives me a good audio but the video has the so-called "hesitation of movement".
I have this another teaser trailer of transformers (sorry i love transformers) and when i use Riverpast, everything is fine. But when i use AVS, there is a problem.
I won't give you the input/source file, you will understand this time without it, using my uploaded samples of the results.
(nevermind the difference of the video size of the two)
(and i cut the other parts of the trailer, so that i only need to upload the files with lesser MB)
Here is the result of AVS Video Converter,
Here is the result of Riverpast Video Cleaner,
Have you noticed? And awhile ago, when i opened the result of AVS with virtualdub, i noticed there is a total of about 3000 frames. When i opened the result of Riverpast with virtualdub, there is a total of about 4000 frames. Thus, the result of AVS has lesser frames, and this can explain the "hesitation".
To conclude, I'd better use Riverpast instead of AVS. But the problem is Riverpast sometimes gives me results that has no video - only blackscreen but with good audio.
Thanks for those who'll help me.
So there was no problem of packed/unpacked bitstream?
Originally Posted by dzsoul
The Riverpast Video Cleaner one uses the wrong framerate. At 29.97fps it has one duplicate frame in every 5 frames, also making it play jerky. It has a framerate 25% greater than it is supposed to. It has more frames than it's supposed to have. If that's the kind of work both programs do you'd be better off getting rid of both of them. They both suck.
The source is already 23.976fps and plays smoothly so I don't know why both programs messed it up, one by dropping frames and duplicating frames, the other by adding duplicate frames to change the framerate from the correct source framerate. I suspect you downloaded it illegally - that someone else converted it from some blu-ray source. If you own the source, then don't use the MP4 as the source for the conversion but go back to the blu-ray source. If you don't own the real source, then go buy it and stop wasting our time asking for advice about crappy programs and illegally downloaded videos.
I suspect the XviD4PSP result didn't work for your player because you didn't allow it to encode for a resolution your player supports. Try again, this time lowering the resolution, perhaps by trying the "AVI HARDWARE" profile as mentioned by poisondeathray.
And I apologize for accusing you of downloading illegal stuff. If I had read more carefully I would have noticed that you already said it was a trailer.