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artifacts/avc bitrate/mkv conversion for 360/h264info
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freehurri
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26. June 2008 @ 20:23 _ Link to this message    Send private message to this user   
Hey everyone. I have a mkv that I want to convert to play on the 360. Now, Im having a lot of trouble with this file. I have tried using gotsent, and xenonmkv, both say the file is unplayable on the 360. After seeing these message, I tried to convert it to 360 friendly myself. I manually demuxed, converted audio, changed the avc level, and remuxed. It plays on my 360, however, it has an a lot of artifacts on the video which plays, which brings me to my current problem.

Why are there so many artifacts during playback? I suspect it is because of the fairly high bitrate of the avc, which leads me to ask how I can lower its bitrate. Using h264info, I entered a max bitrate of 10000 kb/s, but that seems to have done nothing. The file still has a lot of artifacts when I play back. So here are my questions.
Is the problem of artifacts due to the high bitrate? If so, how can I lower it. Can I do this using h264info? If there is something else I can do to get rid of the artifacts, please tell me. This is really annoying.


Here is the mediainfo of the original mkv.

Format : Matroska
File size : 1.95 GiB
Duration : 43mn 46s
Overal bit rate : 6364 Kbps
Encoded date : UTC 2006-03-21 21:30:30
Writing application : mkvmerge v1.6.5 ('Watcher Of The Skies') built on Dec 7 2005 18:53:53
Writing library : libebml v0.7.6 + libmatroska v0.8.0

Video
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L5.1
Format settings, CABAC : Yes
Format settings, ReFrames : 16 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 43mn 44s
Bit rate : 5719 Kbps
Nominal bit rate : 6000 Kbps
Width : 1280 pixels
Height : 720 pixels
Display aspect ratio : 16/9
Frame rate : 23.976 fps
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.272
Title : Main Movie
Writing library : x264 core 45 svn-474
Encoding settings : cabac=1 / ref=16 / deblock=1:-2:-1 / analyse=0x3:0x133 / me=umh / subme=6 / brdo=1 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / chroma_qp_offset=0 / slices=4 / nr=0 / bframes=3 / b_pyramid=1 / b_adapt=1 / b_bias=0 / direct=1 / wpredb=1 / bime=1 / keyint=250 / keyint_min=25 / scenecut=40 / rc=2pass / bitrate=6000 / ratetol=50.0 / rceq='blurCplx^(1-qComp)' / qcomp=0.40 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30
Language : English

Audio
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : A_AC3
Duration : 43mn 46s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Rear: L R, LFE
Sampling rate : 48.0 KHz
Title : English DD5.1
Language : English

Here is the mediainfo of the mpg4 that resulted from my manual process.

Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 1.88 GiB
Duration : 43mn 46s
Overal bit rate : 6152 Kbps
Encoded date : UTC 2008-06-21 21:07:48
Tagged date : UTC 2008-06-21 21:07:48

Video
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 16 frames
Codec ID : avc1
Duration : 43mn 46s
Bit rate mode : Variable
Bit rate : 5979 Kbps
Maximum bit rate : 16.8 Mbps
Width : 1280 pixels
Height : 720 pixels
Display aspect ratio : 16/9
Frame rate mode : Constant
Frame rate : 23.976 fps
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.271
Stream size : 1.83 GiB
Encoded date : UTC 2008-06-21 21:07:48
Tagged date : UTC 2008-06-21 21:12:37

Audio
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : 40
Duration : 43mn 45s
Bit rate mode : Variable
Bit rate : 169 Kbps
Maximum bit rate : 226 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz
Resolution : 16 bits
Stream size : 52.9 MiB
Encoded date : UTC 2008-06-21 21:12:24
Tagged date : UTC 2008-06-21 21:12:37
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