Buffer in HDR

Forum Forums Freesat HD FOXSAT HDR Buffer in HDR

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  • #12231
    Anonymous
    Inactive

    If I understand correctly the 0.ts file is the buffer, yes.no ?

    If yes when does it flush and is it used whether watching or playing a recording ????

    #27128
    Anonymous
    Inactive

    The buffer pointer resets on a channel change. It is used while watching – I don’t know about on playback – why not find out?

    #27129
    grahamlthompson
    Participant

    I think the following are the conditions

    When you switch the channel you are viewing.

    When you are viewing a channel you are also recording when the recording finishes. (view in chasing playback to avoid having to find the same place in the recording if viewing in time shift when recording finishes)

    When a channel change is forced to make a recording due to lack of tuner resources. For example suppose tuner 1 is recording and tuner 2 is required to make a recording following the current programme you are viewing and it’s not on the same transponder as the one you are viewing. If you are viewing in chasing playback from the buffer when this happens you lose the end.

    afaik Viewing a recording in chasing playback or when it’s fully complete does not also buffer to 0.ts.

    PS had more to type than Repassac :-) and yes 0.ts is the buffer.

    #27130
    Anonymous
    Inactive

    Thanks for the info….I think I shall try a few experiments ! 😉

    #27131
    Anonymous
    Inactive

    Here is what I have tried thus far,,

    0.ts reports a size of 18 Gbytes

    I switched viewing channels, waited a few minutes, no change in file size.

    I restarted the HDR, no change in file size.

    I played a recording, waited a few minutes, no change in file size.

    #27132
    grahamlthompson
    Participant

    The file size is fixed (determined by the allowed amount of buffering), recording starts again from the beginning when it’s full or the above, it starts overwriting from the beginning. The firmware in the hdr restricts time shift viewing from the beginning to the current overlay point.

    #27133
    Anonymous
    Inactive

    you are absolutely correct Graham !!!

    I did a few more experiments, and also came to the conclusion that the file size was an allocated one and nothing to do with what it contains.

    I tried a recorded video, and the buffer did not have it,

    I changed channels and the buffer responded each time with the new data.

    Most interesting, Thanks everyone for your inputs :-)

    #27134
    grahamlthompson
    Participant

    Out of interest, you may not have noticed it’s contents are not encrypted even for HD. So streamable using Raydons modified firmware

    #27135
    Anonymous
    Inactive

    grahamlthompson – 38 minutes ago  » 

    Out of interest, you may not have noticed it’s contents are not encrypted even for HD. So streamable using Raydons modified firmware

    Good point, as I wondered if that was the case. I have got that software installed, and what a great piece of code.

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