[mythtv-users] Browser Player for Mythweb (using MPEG DASH packaging)

[Daniel Frey]

I will have to play with it.  From the app standpoint, I just need to point
the connected Chromecast to the URL of the DASH stream. The player is just
an HTML5 <video> tag that loads and plays the stream (along with a few
javascript functions to handle controls). I think it would be more of
checking that the transcoding results are playable, not necessarily the
player working on the Chromecast.  However, since the Cast Receiver is just
html and javascript, I don't see why it too couldn't also be used.

I did just run into an issue last week where the regular HLS transcode,
initiated by the app through the Services API produced a stream that
crashed the Chromecast while playing.  I am not sure if it is an issue with
the stream or connectivity.  However, when connectivity comes becomes an
issue, it tends to just spin until it fixes itself. This is only for
recordings, videos already transcoded to the right format don't cause
this.  I should say I mostly cast recordings (and sometimes videos) when I
am travelling in my hotel room.  It usually works well until a random one
crashes the Chromecast and it has to reboot itself.

On Sat, Feb 11, 2017 at 3:32 PM Garret McGraw <gmcgraw0 at gmail.com> wrote:

> Yeah, this might work.  The only thing to keep in mind is that I had to
> change the DASH manifest from a "live" profile manifest to an "ondemand"
> profile manifest but still maintain the "dynamic" manifest type so that it
> will playable during the transcoding process (see line 300 in index.php for
> my sed replace).  This is something that shaka-player explicitly supports
> (they call it "in-progress recording") but I'm not sure if other DASH
> players will be quite as happy with it.  You may be able to make the
> chromecast app use shaka-player, which would solve this potential issue (if
> it doesn't already).  I do think shaka-player supports playing on
> Chromecast if you configure it correctly.
>
> Let me know if I can help.
>
> Garret
>
>
> On Sat, Feb 11, 2017 at 2:50 PM, Daniel Frey <dmfrey at gmail.com> wrote:
>
> I could use the output in MythTV Player on Android and Chromecast as well.
> MPEG-DASH is supported on both. I will check this out.
>
> On Sat, Feb 11, 2017 at 2:08 PM Garret McGraw <gmcgraw0 at gmail.com> wrote:
>
> Of course I forgot the github link.  Sorry about that, here it is:
>
> https://github.com/thecount2a/mythtv-stream-mpeg-dash
>
> On Sat, Feb 11, 2017 at 2:02 PM, Garret McGraw <gmcgraw0 at gmail.com> wrote:
>
> Hi all,
>
> I wrote a PHP script that will take care of transcoding (using ffmpeg) and
> packaging (using shaka_packager) video files so that users can view their
> mythtv recordings via a web browser without manually using any command-line
> tools.
>
> Here are the features:
>
>
>    - Transcodes from MPEG2 or whatever format your recordings are in, as
>    long as they are recognized by ffmpeg
>    - Watch recording while transcode is still taking place (just don't
>    seek too far ahead)
>    - Use commercial skip info from mythtv database to skip commercials
>    - Can transcode videos to multiple bitrates/resolutions for adaptive
>    playback over less reliable networks (e.g. cell phone browser).
>
> If anybody has any questions or is interested in helping out, feel free to
> file issues on the github page or I will monitor this thread for comments
> or questions.
>
> I'm not sure if there is any plugin infrastructure that provides a better
> way to integrate with mythweb than the manual patching that I describe in
> the README but if anybody has any ideas, feel free to let me know.
>
> Thanks,
> Garret
>
>
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