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  1. #1
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    Unhappy IPTV over DLNA: Subtitles not shown from a Transport stream

    Hello,

    I own a Phillips 40PFL7007K/12 television and I am watching TV streams via IP the following way:
    I have a DLNA server on my network and I have pushed a M3U playlist into it. The DLNA server is xupnpd.org but I don't think it matters at all.

    My issue is with Subtitles.

    The television can successfully see the playlist and play the channels into it. These are transport streams that include PID's for different stuff, for example different audio streams, different subtitles etc.

    I can successfully change audio languages as well. But subtitles are not recognized from the transport stream at all. VLC media player successfully plays it on a computer but when the same stream goes to the television I do not manage to show any subtitles on screen. Sometimes they are detected as a different language at the on-screen menu but sometimes they are not. I try to turn them ON from the remote control but no subtitles show at all.

    EDIT: Here comes a sample transport stream.
    http://77.238.79.246/history.channel.ts
    This is a sample recording from History Channel. No offensive content for any audience may be seen on it so don't worry for this. When I watch this file on a VLC media player on my computer I can successfully enable the subtitles. But when this file goes to the television the subtitles are not shown. Anyone may try to save the file on a USB stick and try to enable subtitles on their television. Feel free to try and give feedback if you see the subtitles or not?

    I upgraded to latest firmware that appeared recently but this did not help.

    Also I would like to ask if Phillips plans to implement a more convenient IPTV feature so that I integrate the M3U playlist directly on the TV. I want it to show as a source input the same way I see satellite television, DVB television, HDMI etc.

    Thank you!
    Stefan
    Last edited by checho; 05-30-2014 at 12:21 PM.

  2. #2
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    Excuse me, is anybody here? I also tried contacting Support and do not have any reply since three days.

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    Hi,

    as far as I know, subtitles via DLNA are not supported.

    Toengel@Alex

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    Quote Originally Posted by Toengel View Post
    Hi,

    as far as I know, subtitles via DLNA are not supported.

    Toengel@Alex
    Hi, I believe you are mistaking here. Subtitles over DLNA may not be supported when they are a different file. On my case the DLNA is driving to the TV a single transport stream which is exactly the same that a DVB-C television may deliver. Please make a difference between an .AVI movie with a .srt subtitle file and a transport stream that has everything inside. If you make a comparison between a transport stream like mine and a transport stream from a DVB-C cable television, the difference is none in the stream but only in the way it is delivered to the TV (DVB-C delivers it via coaxial cable and I deliver the same via IP).

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    HI,

    Toengel is right, it does not work.

    Regards
    Thomas

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    Friends, excuse me in case I had been unclear but there is some misunderstanding in what I said and what you understood.

    People are generally driving an ordinary movie file for example .AVI to the television. Subtitles are NOT supported this way because the DLNA protocol cannot send two files at the same time to the TV. As we know subtitles are .srt or .sub and this way they may not be received.

    I am talking about a different thing. I am talking about a transport stream that has multiple elements inside. There are PMT tables inside, etc. that tell the receiver what is inside. The player recognizes different elements that may be pictures, audio in different languages, subtitles, teletext etc. This is the way operators deliver an ordinary DVB-C cable service to the TV. The content is the same, only the way it is delivered is different. When a DVB-C cable operator sends this content it is processed by the TV tuner that recognizes what is on different frequencies (called also transponders). When I take the same content and present it to the TV via USB stick or DLNA, then the TV does not recognize the subtitles inside. Do you get my point now? I cannot figure out a reason why the same content is properly processed when it came through the tuner and why it is not properly processed when it came through another input source (as I said USB stick or DLNA). Please look through my example transport stream I provided above.
    Last edited by checho; 06-06-2014 at 05:05 PM.

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    Hi ,

    my free media server generates a stream which includes subtitels. This way it works for sure.

    Regards Roy

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    Quote Originally Posted by Roy D View Post
    Hi ,

    my free media server generates a stream which includes subtitels. This way it works for sure.

    Regards Roy

    The transport streams I am driving to the TV are ordinary standard MPEG TS and if they cannot be played properly on a TV this means that there is a bug on the TV software. The same stream comes through a DVB-C cable operator and then it works fine. I do not need anybody to transcode and re-encode anything and also I do not need anybody to create a new version of MPEG TS so that it is recognized properly by a TV. All kinds of players know about MPEG TS and can figure out what does stay inside. The TV cannot read subtitles from there and this is not a new feature request but a bug to fix.

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