Bad MP4 Compression - How Do I Add A Encoder Driver?

[lata]

Hi

If you were to edit the original footage and render to the original properties does that improve the pixilation issue. I assume the original to be 1920 x 1080 and not 4k
I don’t really agree that downscaling is gonna improve quality, although I cannot comment on adding filters enhancing colours. The video will be lossy format and any rendering / conversion will impact on quality, whether we notice the difference is another matter.

And yes the regular members do spend quite a bit of time on the forums, Ken may be absent for a while, not that he is taking much video, I will be on holiday as from Friday, long cruise so wont be here for 5 weeks, Then I will have time to use the recorder, whether I have the time to edit is the issue…..

And today I am busy so wont be back till late afternoon

[erdna]

Hi,
Sorry to "detect" this very interestng topic so late. I was and still am quite interested in all kinds of artifactst. Your file is a typical "codec killer file"not only because of the interframe deltas, in terms of objct position and resolution but even more because of the complicated motionvector directions, speeds an d sizes. Hopefully we can get some original footage to play with.
f.y.i. the standard (free) Dropbox size is 2GB. Uploading 200+ MB would take some time but is not a proble. Also the free "Wetransfer" service allow 2 GB uploads.
Edit: Did you try the "Movie profile manager" route uder "Tools"
If bitrate is your concern, try the XAVC-S HD codec

[herein2015]

Hi

If you were to edit the original footage and render to the original properties does that improve the pixilation issue. I assume the original to be 1920 x 1080 and not 4k
I don’t really agree that downscaling is gonna improve quality, although I cannot comment on adding filters enhancing colours. The video will be lossy format and any rendering / conversion will impact on quality, whether we notice the difference is another matter.

And yes the regular members do spend quite a bit of time on the forums, Ken may be absent for a while, not that he is taking much video, I will be on holiday as from Friday, long cruise so wont be here for 5 weeks, Then I will have time to use the recorder, whether I have the time to edit is the issue…..

And today I am busy so wont be back till late afternoon

lata, I tried doing nothing but importing the clip, then rendering to a new file using "Same as Project Settings". Same problem, pixelation, etc.

Hi,
Sorry to "detect" this very interestng topic so late. I was and still am quite interested in all kinds of artifactst. Your file is a typical "codec killer file"not only because of the interframe deltas, in terms of objct position and resolution but even more because of the complicated motionvector directions, speeds an d sizes. Hopefully we can get some original footage to play with.
f.y.i. the standard (free) Dropbox size is 2GB. Uploading 200+ MB would take some time but is not a proble. Also the free "Wetransfer" service allow 2 GB uploads.
Edit: Did you try the "Movie profile manager" route uder "Tools"
If bitrate is your concern, try the XAVC-S HD codec

Thanks for the DropBox tip, I've never used it and hadn't checked file size limits. Here is a link to the original clip:

https://www.dropbox.com/s/2hqg5jm0bvhsa ... D.MP4?dl=0

I did try the Movie Manager route but with the same result. I also tried the XAVC-S HD codec; pixelation improved slightly but the really compex parts of the frame such as rendering the wildlife and water while flying over was pixelated again.

I understand this is pretty hard for the codec to handle but my other NLE does not have this problem, and the camera itself was able to successfully save to this format, all I want to do is add a few filters, text, sound track, and render to a lower resolution.

[lata]

Hi
Thanks for the sample....
I have rendered the file to Mpeg4, no problems, I modified the standard template to use 20000kbps.

the new video file looks as good as the original.

The original by the way does not have a sound track but that did not seem to affect anything.

Sorry a little late here, bed time, I will try to repeat my render again tomorrow.

[erdna]

To make shure that we all "see" the same, what player and display are we using? I mostly use the MPC-HC on a Medion 31.5" fullhd LCD screen connected through HDMI.

[herein2015]

lata, I don't see what could possibly be wrong with my system then. This was a clean install of X8 with nothing but Windows 8.1 Pro 64 bit for the OS installed. I then installed VLC to view the video and Handbrake to convert it, nothing else is installed.

The system is a Dell 9010 with a Core i5 CPU, 4GB if memory, and an AMD Radeon HD 7000 series video card, and the drivers for the video card are the latest on the AMD site. The hard drive is a Intel SSD hard drive. I'm reinstalling X8 as I type this because now it just crashes trying to render anything.

erdna, I am using VLC to play the video and a Samsung 24" monitor connected via DVI.

I've tried rendering this video on both the system I built just to test with and my main HP Z800 hexacore Xeon system with 48GB of memory and dual NVIDIA Quadro FX 4800 cards. On both systems the video had pixelation when converting to 1280x720 MPEG-4.

[herein2015]

Hi
Thanks for the sample....
I have rendered the file to Mpeg4, no problems, I modified the standard template to use 20000kbps.

the new video file looks as good as the original.

The original by the way does not have a sound track but that did not seem to affect anything.

Sorry a little late here, bed time, I will try to repeat my render again tomorrow.

lata thanks so much for all of your help...is there any way you could upload a portion of the final render so that I can see if I see any pixelation on my system?

[asik1]

Here my 2cents.
I rendered your original to: 1280X720 29.97
10mb.mp4 = About same results as you had
20mb.mp4 = Better but not perfect
VBR.wmv = super fine!!! but your 235MB turn to 339MB

However, playback of the mp4's isn't smooth but choppy and both have slight noise as all VS mp4 have.

your original is
Format : MPEG-4
Format profile : JVT
Codec ID : avc1
File size : 230 MiB
Duration : 1mn 17s
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=8
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1mn 17s
Bit rate mode : Variable
Bit rate : 25.0 Mbps
Maximum bit rate : 25.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive

VS mp4's are
Format settings, ReFrames : 2 frames
Format settings, GOP : M=3, N=15

Extra 2 cents,
http://www.mediacoderhq.com/dlportable.html
This gave me a fine result, transcoding at ~16MB

http://www.h264encoder.com/
This gave a very reasonably result transcoding at ~5.5MB
Both better than VS's.

[lata]

Hi

I have rendered to same as first clip, that seems to produce a good video without pixilation. However as Asik says the playback is a little choppy, I mentioned that in an earlier reply, I don’t know why its creating that small pulsing effect, as though a frame is added or dropped?

The Data Rate controls the quality, your video uses 24,999 kbps, any reduction to that data rate will impact on quality, reducing the frame size will also impact on quality showing as pixilation.

I have uploaded the Same as Clip to drop box here:=

https://www.dropbox.com/s/eoniwzuu3uoaq ... p.mp4?dl=0

I have not had the time to render to other formats, Asik indicates WMV being good quality.
If your target audience is the internet then that may be your best option.

Hi

Post updated

I have checked my settings and being in Pal country my project was set to 25fps.
The sample video does not activate Show Messages…. So properties are not set automatically.

I have now rendered the video having project settings as 29.97fps, now I have a good video without the jitters.
Maybe I am seeing something different to you, as you are in the US your properties should be 29.97…..

I have uploaded a shorter clip (100Mb) to Dropbox, for me this plays ok

https://www.dropbox.com/s/vhbe7fb976u5n ... s.mp4?dl=0

[erdna]

Hi Trevor,
I have the same Pal problem. In addition, my Graphics card output and my monitor are set to 50Hz...difficulto compaire shakynesses etc. So I wil have to change this framerate too for getting comparable results...Could you also produce and evaluate a rescaled 1280x720 render?

[herein2015]

Thank you so much for everyone's help, this forum is definitely the most helpful I've participated in in a long time.

lata, I downloaded your sample, it looks like you are getting close to the same results I was after I removed the sharpening and color correction filters. If you watch your sample clip and closely observe the water it pixelates badly and pulses as it tries to render the clouds reflected in the water. As the flight slows then flies backwards, the water pixelates even worse. After adding filters the pixelation and flickering is back to my original unacceptable footage.

It looks like asik found the missing piece, some properties are definitely different between VS and the original, asik mind sharing what program gave you that much information? VLC, Handbrake, and VS do not seem to give me that much information when I look at the properties of the clip. I will try out the two programs you referenced for transcoding, but I really like Handbrake, unless one of the others is faster or can squeeze a tiny bit more quality out of the footage I'll probably stick with it.

Well it looks like the bottom line is that I will have to convert to WMV or MOV first then convert to MP4. The final file extension has to be MP4 because the customer could have Android, Apple, or MS as their OS and MP4 is the best one for universal compatibility.

I strive to be the best at what I do in my area and pulsating footage and pixelating water is not acceptable in my book. If everything else about VS were not so perfect I would probably switch to something else but as it is, I'll just have to add an extra step and time to my workflow.

[asik1]

google for Mediainfo
select Text view.
It will list also some info you might not want to be freely on the net.

[lata]

Hi Andre

Just had time this morning to create a 1280 x 720.
File name MPEG-4 AVC (1280 x 720, 29p 20Mbps) uploaded to DropBox

https://www.dropbox.com/s/cesln3y5iq3br ... 9.mp4?dl=0

I have only played this using Video Studio but again seems ok?

herein2015

I see what you mean regarding the water, I was concentrating on the trees I have not had time to test out any other format, as for WMV, again Pal settings messes that up, my profiles are all 25fps and I do not have the time to create a new WMV using 29.97fps, at one time we could create new profiles via Video Studio? I tried a WMV at 25fps but the results were terrible.

We are on holiday as of today taking a cruise, heading north to Faroe Islands Greenland, Iceland and then over the pond to Canada and Newfoundland area.
I wont be on the forum till late August.