Automatic and dynamic streaming quality/bandwidth (1 Viewer)

mrceolla

Portal Pro
December 11, 2010
136
12
Country flag
Hello,

Some streaming services like SlingBox and Netflix don't require you to specify a streaming profile or specify your bandwidth. They seem to detect this and adjust automatically, even during playback. When watching SlingBox in a moving car over a cell network with their SlingPlayer app, the video will get crappy when you have a bad signal and good when you have a good signal, and playback doesn't stop. The video quality/bandwidth adjusts on the fly.

Is this possible with MPExtended and are there any plans for something like this in the future?

Thanks!
 

Oxan

Retired Team Member
  • Premium Supporter
  • August 29, 2009
    1,730
    1,124
    Home Country
    Netherlands Netherlands
    It's possible, but an enormous amount of work and probably require some low-level knowledge of encoders, codecs and containers. I lack both of them, so I personally won't implement it; but I'm happy to merge it if others do it.
     

    mrceolla

    Portal Pro
    December 11, 2010
    136
    12
    Country flag
    Hi Oxan,

    Thank you for your reply. Unfortunately, I lack them as well. As an alternative to 'fully dynamic' streaming which I imagine would be quite complicated, what about adding a feature that automatically selects a profile based on a short bandwidth test between the client and MPExtended. This should be a bit simpler. Perhaps the user would be required to select their encoder type (VLC, ffmpeg, http), but then the bandwidth test selects the profile for you.

    Or, perhaps each encoder type could have a special 'Automatic' profile which contains placeholders populated by numbers determined during the bandwidth test. This may be a better way to go.

    On a side note, somewhat related... I would personally find it very useful if bandwidth requirements were somehow indicated in the profile names. I know I can look them up in the XML but that's not extremely convenient. If I'm using aMPdroid on my phone and playback is pausing due to low signal/bandwidth, I could do a quick speed test w/ one of the many speed test apps and then use that number to determine which profile should provide me with pause-free playback. This versus the alternative of trial and error.

    Great job to you and any other contributors on MPExtended. Keep up the good work!
     

    Oxan

    Retired Team Member
  • Premium Supporter
  • August 29, 2009
    1,730
    1,124
    Home Country
    Netherlands Netherlands
    Thank you for your reply. Unfortunately, I lack them as well. As an alternative to 'fully dynamic' streaming which I imagine would be quite complicated, what about adding a feature that automatically selects a profile based on a short bandwidth test between the client and MPExtended. This should be a bit simpler. Perhaps the user would be required to select their encoder type (VLC, ffmpeg, http), but then the bandwidth test selects the profile for you.

    Or, perhaps each encoder type could have a special 'Automatic' profile which contains placeholders populated by numbers determined during the bandwidth test. This may be a better way to go.
    I remember talking with @DieBagger about this a long time ago, and if I remember correctly it was something that we'd like to implement in the long term. However, we're both pretty busy and it doesn't have very high priority, so it'll probably take quite some time before it gets implemented. (As always; patches welcome!)

    On a side note, somewhat related... I would personally find it very useful if bandwidth requirements were somehow indicated in the profile names. I know I can look them up in the XML but that's not extremely convenient. If I'm using aMPdroid on my phone and playback is pausing due to low signal/bandwidth, I could do a quick speed test w/ one of the many speed test apps and then use that number to determine which profile should provide me with pause-free playback. This versus the alternative of trial and error.[/uqote]
    The numbers in the XML are just a guess based on the transcoder settings and don't seem to match reality at all. I'm not sure whether they have even been updated for the 0.5 release. We'd need to have real data for the profiles first; before we can consider this.
     

    Users who are viewing this thread

    Similar threads

    Many thanks for your fast response. Hopefully I'll get to work through these items in the next few days. Kind regards.
    Many thanks for your fast response. Hopefully I'll get to work through these items in the next few days. Kind regards.
    Hi, I'm new to the world of HTPC and Media Portal but I've decided to give it a go since my Pioneer DVR-LX60D PVR failed and is...
    Replies
    2
    Views
    770
    Hello!!! I use a handy app called catchin' sync to roughly check the AV sync of audio/video on my HTPC/TV. It's not as accurate as a dedicated opto-electronic calibrator but it's more than adequate for this application and much better than trying to do things by eye (even when the lack of sync is massively obvious, subjective...
    Hello!!! I use a handy app called catchin' sync to roughly check the AV sync of audio/video on my HTPC/TV. It's not as accurate as...
    Hello!!! I use a handy app called catchin' sync to roughly check the AV sync of audio/video on my HTPC/TV. It's not as accurate as...
    Replies
    0
    Views
    394
    I finally got the new video card, a Geforce GT 740. This is capable of producing 4k resolution over HDMI, though only at 30hz because of HDMI 1.4 limitations. My television recognized the 2160p signal. As before, MediaPortal was able to switch over to 2160p while running without any problems. For those who are curious as to how I...
    I finally got the new video card, a Geforce GT 740. This is capable of producing 4k resolution over HDMI, though only at 30hz...
    I will be getting a 4K television in the near future. I may also get a new video card for my HTPC that can output 2160p@30hz for...
    Replies
    7
    Views
    2K
    Yes, because old series are streamed in 4:3 and not 16:9, so I have a big black frame. Which color key should be the Zoom key? I remeber a plugin for MP1 that scanned the black frame, removed it be scaling up the picture to the max. resolution. Are the plans to integrate such feature?
    Yes, because old series are streamed in 4:3 and not 16:9, so I have a big black frame. Which color key should be the Zoom key? I...
    This is Release Candiate 2 build of the upcoming "Spring'16 Release". Main changes compared to Summer'15 Update 1 Release are...
    Replies
    13
    Views
    4K
    Hi @el Filou Ok I understand, that not easy :( So for now ReClock is the best :)
    Hi @el Filou Ok I understand, that not easy :( So for now ReClock is the best :)
    Description of Change This branch will permit to have madVR renderer to MP1, thanks to Tourettes for this and Madshi. This branch...
    Replies
    6K
    Views
    548K
    Top Bottom