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Thread: Colors "shifted" during mp4 playback

  1. #1
    Join Date
    Jan 2013
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    3

    Colors "shifted" during mp4 playback

    Hey people,

    I was wondering if anybody is familiar with the following situation:

    When I want to play an mp4 file, its seems as if the RGB colors are shifted with respect to each other. I have an other file which is mkv and it plays perfectly. I am using Mythtv 0.26 with the internal player and standard playback settings.

    I have been searching the internet for a solution and found references to a hue problem. Tried to adapt this but made no difference.

    Any help is appreciated, thanks!

    EDIT: I found this one reference to the same problem in chromium: http://code.google.com/p/chromium/is...etail?id=96907 no solution though...
    Last edited by DouweD; January 20th, 2013 at 07:46 PM.

  2. #2
    Join Date
    Mar 2007
    Location
    Christchurch, NZ
    Beans
    3,239

    Re: Colors "shifted" during mp4 playback

    please post the full output of mediainfo for this file.

  3. #3
    Join Date
    Jan 2013
    Beans
    3

    Re: Colors "shifted" during mp4 playback

    Thanks! Here is the requested info (only left the name of the file out):

    General
    Complete name : #####
    Format : MPEG-4
    Format profile : Base Media
    Codec ID : isom
    File size : 152 MiB
    Duration : 21mn 18s
    Overall bit rate mode : Variable
    Overall bit rate : 995 Kbps
    Encoded date : UTC 2012-12-13 18:38:51
    Tagged date : UTC 2012-12-13 18:38:51

    Video
    ID : 1
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L3.1
    Format settings, CABAC : Yes
    Format settings, ReFrames : 5 frames
    Codec ID : avc1
    Codec ID/Info : Advanced Video Coding
    Duration : 21mn 18s
    Bit rate : 886 Kbps
    Maximum bit rate : 8 572 Kbps
    Width : 720 pixels
    Height : 404 pixels
    Display aspect ratio : 16:9
    Frame rate mode : Constant
    Frame rate : 23.976 fps
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.127
    Stream size : 135 MiB (89%)
    Writing library : x264 core 129 r2230 1cffe9f
    Encoding settings : cabac=1 / ref=5 / deblock=1:1:1 / analyse=0x3:0x133 / me=umh / subme=9 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=18 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=crf / mbtree=1 / crf=20.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
    Encoded date : UTC 2012-12-13 17:01:17
    Tagged date : UTC 2012-12-13 18:38:51
    Matrix coefficients : BT.709

    Audio
    ID : 2
    Format : AAC
    Format/Info : Advanced Audio Codec
    Format profile : LC
    Codec ID : 40
    Duration : 21mn 18s
    Bit rate mode : Variable
    Bit rate : 105 Kbps
    Maximum bit rate : 143 Kbps
    Channel(s) : 2 channels
    Channel positions : Front: L R
    Sampling rate : 48.0 KHz
    Compression mode : Lossy
    Delay relative to video : 83ms
    Stream size : 16.0 MiB (11%)
    Encoded date : UTC 2012-12-13 18:38:51
    Tagged date : UTC 2012-12-13 18:38:51

  4. #4
    Join Date
    Jan 2013
    Beans
    3

    Re: Colors "shifted" during mp4 playback

    Im sorry for replying to my own message, but does anybody have an idea on what may be causing this strange problem?

    EDIT: It turned out to be a driver problem... thanks for the help anyway!
    Last edited by DouweD; January 24th, 2013 at 08:46 AM.

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