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  1. #1
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    22PFL4208K mpeg2 playback problem

    My new 22PFL4208K/12 (firmware 002.030.000.001) has a problem of mpeg2 file playback.
    I tried, via USB, some files (previously recorded from digital terrestrial stream with another device), and the playback is not totally fluid, not smooth. Not even totally jerky, but every some seconds happens that drop or freeze frames. The amount may vary from barely perceptible to clearly evident, seems to be random in the sense that with every reproduction change time position and quantity.
    The audio does not present any problem.
    I tried two USB pen-drive (FAT32 - different size and brand) and an external hard drive (NTFS - with its own power supply), but the problem remains. Obviously the mpeg files play perfectly on PC, with other TV and stand alone mediaplayer.
    Divx .avi, H264 .mp4 or .mkv play fine.

    Here a "sample" with which to check on other TV.

    https://mega.co.nz/#!plgx3C6L!PXn2_A...d5DH4-3_ZmTBAk

    Media Info:
    Complete name : C:\Test.mpg
    Format : MPEG-PS
    File size : 115 MiB
    Duration : 4mn 6s
    Overall bit rate mode : Variable
    Overall bit rate : 3 902 Kbps

    Video
    ID : 224 (0xE0)
    Format : MPEG Video
    Format version : Version 2
    Format profile : Main@Main
    Format settings, BVOP : Yes
    Format settings, Matrix : Custom
    Format settings, GOP : Variable
    Duration : 4mn 6s
    Bit rate mode : Variable
    Bit rate : 3 632 Kbps
    Width : 704 pixels
    Height : 576 pixels
    Display aspect ratio : 16:9
    Frame rate : 25.000 fps
    Standard : PAL
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Interlaced
    Scan order : Top Field First
    Compression mode : Lossy
    Bits/(Pixel*Frame) : 0.358
    Stream size : 107 MiB (93%)

    Audio
    ID : 192 (0xC0)
    Format : MPEG Audio
    Format version : Version 1
    Format profile : Layer 2
    Duration : 4mn 5s
    Bit rate mode : Constant
    Bit rate : 192 Kbps
    Channel(s) : 2 channels
    Sampling rate : 48.0 KHz
    Compression mode : Lossy
    Delay relative to video : 7ms
    Stream size : 5.62 MiB (5%)

    Instead, here the recording of the screen (while playng the above file),
    so you can see what i mean and view the problem at the following time:
    00:31 - 00:53 - 02:12 - 02:27 - from 02:52 to 02:55

    https://mega.co.nz/#!dhJXGTxA!UNejMB...fYBINg9tEIT_Ig

    I would like to know if is a software bug or is my TV defective.

    Sorry for my english and thank.

    EDIT: It's been 10 days no one answers me, I may have written in the wrong section of the forum?
    Last edited by LucaR; 12-13-2013 at 01:33 PM.

  2. #2
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    Quote Originally Posted by LucaR View Post
    My new 22PFL4208K/12 (firmware 002.030.000.001) has a problem of mpeg2 file playback.
    I tried, via USB, some files (previously recorded from digital terrestrial stream with another device), and the playback is not totally fluid, not smooth. Not even totally jerky, but every some seconds happens that drop or freeze frames. The amount may vary from barely perceptible to clearly evident, seems to be random in the sense that with every reproduction change time position and quantity.
    The audio does not present any problem.
    I tried two USB pen-drive (FAT32 - different size and brand) and an external hard drive (NTFS - with its own power supply), but the problem remains. Obviously the mpeg files play perfectly on PC, with other TV and stand alone mediaplayer.
    Divx .avi, H264 .mp4 or .mkv play fine.

    Media Info:
    Complete name : C:\Test.mpg
    Format : MPEG-PS
    File size : 115 MiB
    Duration : 4mn 6s
    Overall bit rate mode : Variable
    Overall bit rate : 3 902 Kbps

    Hi LucaR,

    Sorry for the late reply. I have been looking into what the issue might be.

    The TV does not support the file format you presented here per se.

    Because the file is not in pure MPEG2 format, this is most likely where the issue is at. The conversion of the file is probably what is causing the problem during playback on the TV.

    Could you please try to play a standard MPEG2 file and let me know if you are having the same issues?

    Best regards,
    Ina
    Forum Mod

  3. #3
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    Quote Originally Posted by Philips - Ina View Post
    Because the file is not in pure MPEG2 format, this is most likely where the issue is at. The conversion of the file is probably what is causing the problem during playback on the TV.
    I have not converted the file, only "extracted" the mpeg2 stream from a .ts file; no re-enconding, only container conversion.

    Quote Originally Posted by Philips - Ina View Post
    Could you please try to play a standard MPEG2 file and let me know if you are having the same issues?
    I have no idea what kind of mpeg2 standard file you mean, program stream is an mpeg2 standard:

    Quote Originally Posted by From Wikipedia
    MPEG program stream
    Program stream (PS or MPEG-PS) is a container format for multiplexing digital audio, video and more. The PS format is specified in MPEG-1 Part 1 (ISO/IEC 11172-1) and MPEG-2 Part 1, Systems (ISO/IEC standard 13818-1[6]/ITU-T H.222.0). The MPEG-2 Program Stream is analogous and similar to ISO/IEC 11172 Systems layer and it is forward compatible.
    This is the first time that I have problem to play this files, because are common format and all devices I used before reproduced them well.
    Also tried with an encoded by me mpeg2 file (perfectly DVD compliant specification) from MiniDV camera source, but same problem, the only mpeg2 file that play without problem seem to be .ts file.
    You wrote that TV does not support the file format, but the manual say that the TV support mpeg2 PS container.

    Click to enlarge.

    May I expect a solution in the future with new firmware?

    Thank, Luca.
    Last edited by LucaR; 12-20-2013 at 10:28 PM.

  4. #4
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    Hi LucaR,

    OK yes, it appears I didn't do my homework! I do wonder what multimedia specs I was looking at...

    I'll look into this once the forum is back on full capacity after the holidays.

    Best regards,
    Ina
    Forum Mod

  5. #5
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    Ok, so i will hope that new year bring good news...

    Thanks,
    Luca.

  6. #6
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    Any news? Thank you.
    Luca

  7. #7
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    I've installed the last firmware, version 003.001.000.001, and now .mpg mpeg2 PS file play fluid as they should play.
    I hope that with next firmware the problem don't reappear.

    Luca.

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