Video playing pixles question

[alex2wr]

Hello,

This is my first time posting in this forums and kind of new to video editing so please bare with me.

When I play videos (haven't narrowed down to encoding, container, etc..) I many times get trailing pixels around moving objects on the image as well as pixelation. Then after a while of playing the video, it goes away. I've attached a snapshot of a video as an example. Look under the guys left hand, where you see the skin toned blob is where his hand was a fraction of a second ago.

can anyone help me pin-point the root cause of this problem?

Thanks,

[alex2wr]

Edit: also notice pixels around edges. thanks

[hello_hello]

It's probably a decoding problem. I don't know whether it'd be the decoding when you re-encode, or the decoding of the re-encoded version. Many frames require information from surrounding frames before they can be displayed correctly. The "trailing pixels" looks like missing information. If it only happens immediately after you've navigated to a new location in the video, but goes away and doesn't happen as long as you continue playing, it probably means the player isn't decoding all the required frames in order to display the current frame(s) correctly. If you navigate to a slightly earlier place in the video and play through the section from which you took the screenshot and it still happens, there's probably something wrong with the video.

Is that picture typical of your encoded/edited video? Because the quality is fairly awful. It looks like the encoding bitrate was way, way, way too low.

[johns0]

Post a mediainfo of the video.

[alex2wr]

Firsts I want to thank you for your information.

The video I did not re-encode, I downloaded it to watch. The information of the video is as follows:

[johns0]

It's a very low bitrate video so that's why you see all the artifacting,nothing you can do to fix that.

[Detmek]

What player do you use for playback? Did you try to play video using some other player? It looks like decoding problem as 1150kbs is not that low bitrate for 960x540 frame size.

[alex2wr]

I'm very disappointed to say that it happens in VLC and not in Windows Media Player.

[jagabo]

Those are obviously decompression errors. Either from a damaged file or a decoder problem. Since WMP plays it properly it's probably the latter.

[alex2wr]

How is it that the "best" player out there doesn't decode well? Where would I start to fix an issue like this?

[True Colors]

It's a very low bitrate video so that's why you see all the artifacting,nothing you can do to fix that.

It is low, but I have seen plenty of videos with a similar bit rate that do not look THAT bad.

I am surprised that anyone could form a good opinion on this matter, in light of the fact that the original post included almost no information.

Where did these files come from? Are these youtube downloads, did you download them from some other site? What type of software tool are you using to perform your downloads?

Can you give us some of the links of the videos that you are downloading?

What type of video player are you using?

What type of screen are you trying to watch this on? TV or computer? Are you expanding the image to a full size flat screen TV?

If I had to guess, I would say that your point of failure is when you originally download your videos. You are using something which results in an MOV file. And if your download is crap then the playback will be crap too. Garbage in garbage out.

TC

[hello_hello]

How is it that the "best" player out there doesn't decode well?

It usually does. MPC-HC.

Where would I start to fix an issue like this?

Upload a sample.