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Thread: Strange artifacts seem to appear on the PS3

  1. #1

    Default Strange artifacts seem to appear on the PS3

    Hi, I've tested some H264 HD (720P) video from Mezzmo to my PS3, and I am seeing some strange artifact when I, use the PS3 button (Square) to go at a later part.

    Once the video start from the new location artifacts appears and dissapear on the picture. I have not seen this happen when I do not change the time position.

    Most videos I play are H264 streams, inside a MPG file container. This doesnt seem to happen with my AVI and WMV files.

    Checking with the Mezzmo option to check the file with FFMPEG, I see that the container seem to have 2 times the FPS from the stream.
    Seems stream 0 codec frame rate differs from container frame rate: 47.95 (5000000/104271) -> 23.98 (24000/1001)
    Anyone have an idea about this?

  2. #2
    Adric Guest

    Default

    Can your right click on these files in Mezzmo and then Get ffmpeg information. Then send us the information.

  3. #3

    Default

    Hi is the information from FFMPEG. As I said, I don't see artifact if I don't go to another part of the movie. It only happen when I go directly to another part of the movie (Using the square button on the PS3)
    FFmpeg version git-c3897d7, Copyright (c) 2000-2011 the FFmpeg developers
    built on Jan 20 2011 13:56:32 with gcc 4.4.2
    configuration: --enable-memalign-hack --arch=x86 --target-os=mingw32 --cross-prefix=i686-mingw32- --enable-static --disable-shared --enable-zlib --disable-ffprobe --disable-ffplay --prefix=/media/windows/ffmpeg --extra-cflags=-U__STRICT_ANSI__ --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect
    libavutil 50.36. 0 / 50.36. 0
    libavcore 0.16. 1 / 0.16. 1
    libavcodec 52.108. 0 / 52.108. 0
    libavformat 52.94. 0 / 52.94. 0
    libavdevice 52. 2. 3 / 52. 2. 3
    libavfilter 1.74. 0 / 1.74. 0
    libswscale 0.12. 0 / 0.12. 0
    [mpegts @ 0174df80] max_analyze_duration reached

    Seems stream 0 codec frame rate differs from container frame rate: 47.95 (5000000/104271) -> 23.98 (24000/1001)
    Input #0, mpegts, from 'C:\Documents and Settings\All Users\Documents\Mes vidéos\Films\Fantastique\movie[720p].mpg':
    Duration: 01:34:05.97, start: 599.958300, bitrate: 6905 kb/s
    Program 1
    Stream #0.0[0x1011]: Video: h264, yuv420p, 1280x544, 23.98 fps, 23.98 tbr, 90k tbn, 47.95 tbc
    Stream #0.1[0x1100]: Audio: ac3, 48000 Hz, 5.1, s16, 640 kb/s
    At least one output file must be specified


    ---> DB Level Info: 41
    Thanks!

  4. #4
    Join Date
    Nov 2007
    Location
    Melbourne, Australia
    Posts
    11,616

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    Do they sort themselves out after a few seconds? Most probably this happens because the point of time you jump to is a partial frame, so until the next full (key) frame is played by the PS3, you'll see garbage in the spots that are missing from the frame.

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  5. #5

    Default

    Hi, Dennis.

    Checked again. Yes this sort out after some time. The movie I tested had very few keyframes I think, because it took over 1 minute, before the image was "clean again"

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