Pixels/Artifacts in HD Videos

Advertise at AfterDawn.com

Link to us!

Private messages

Compose a private message

List of all updated threads

Threads without replies

Search messages

Saturday 22.2.2025 / 14:14

Search AfterDawn Forums:

afterdawn.com > forums > digital video > video playback problems > pixels/artifacts in hd videos

Browse by topic

Forums

Start a new thread

Pixels/Artifacts in HD Videos

Jump to:

Posted

Message

cintec

Newbie

4. July 2011 @ 14:45

Link to this message

When playing a 1080p movie in MPC Im getting a lot of pixelation. I'd love to pose a img here to show the problem but I can't post a links as a new user instead you can paste this in your browser I guess.

img.photobucket.com/albums/v359/redrust422/pixelated_vid.jpg

I thought HD formats were supposed to be better than this? Or maybe Im missing something?

Heres what I know about the movie file.


Format                           : Matroska

File size                        : 8.06 GiB

Overall bit rate                 : 5 537 Kbps

Writing application              : mkvmerge v2.9.7 (Tenderness) built on Jul  1 2009 18:43:35

Writing library                  : libebml v0.7.7 + libmatroska v0.8.1



Video

ID                               : 1

Format                           : AVC

Format/Info                      : Advanced Video Codec

Format profile                   : High@L4.1

Format settings, CABAC           : Yes

Format settings, ReFrames        : 5 frames

Muxing mode                      : Container profile=Unknown@4.1

Codec ID                         : V_MPEG4/ISO/AVC

Duration                         : 3h 28mn

Bit rate                         : 4 536 Kbps

Width                            : 1 920 pixels

Height                           : 788 pixels

Display aspect ratio             : 2.437

Frame rate                       : 23.976 fps

Resolution                       : 24 bits

Colorimetry                      : 4:2:0

Scan type                        : Progressive

Bits/(Pixel*Frame)               : 0.125

Writing library                  : x264 core 72 r1235M 448b138

Encoding settings                : cabac=1 / ref=5 / deblock=1:-2:-2 / analyse=0x3:0x113 / me=umh / subme=10 / psy=1 / psy_rd=1.0:0.0 / mixed_ref=1 / me_range=64 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=-2 / threads=12 / nr=0 / decimate=1 / mbaff=0 / bframes=10 / b_pyramid=0 / b_adapt=2 / b_bias=0 / direct=3 / wpredb=1 / keyint=240 / keyint_min=24 / scenecut=40 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=18.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / vbv_maxrate=50000 / vbv_bufsize=50000 / ip_ratio=1.40 / aq=2:1.00

Im a newb when it comes to understanding the different formats and encoding options etc. But I usually associate key phrases like HD, 1080p, 720p, with more quality than this. Ive tried playing this in MPC and VLR with the same results. Is there anything I can check/change/do to clean this up or is it just the way it is?

Heres system specs if you need them.

Dual-boot XP 32-bit and Win7 64-bit (pic was taken from XP)
CPU: Intel Core2Duo E6750 2.66GHz
Vid: Nvidia Geforce 560Ti
4 GB DDR2 RAM

[ + quote]

praetorian65

Newbie

5. July 2011 @ 08:36

Link to this message

The resolution and bitrate look fine for HD video but this video will only be as good as the source that was used to create it. If a DVD is ripped and re-encoded at 1080p you will not get a blu-ray quality picture.

Download the 'Avatar' Trailer in 1080p and give it go.

If you get the same pixelation it could be a codec or graphics driver issue. Download new ones. If the video plays in all its glory then it is likely your movie that is at fault.

[ + quote]

Start a new thread

afterdawn.com > forums > digital video > video playback problems > pixels/artifacts in hd videos


		User name	Password

		Not registered yet? Register here. Lost your password? Click here.