Randell send me a good question on IRC today, regard to license issue of it.
I am not sure license/legal issues around HLS and MPEG2TS had been discussed
before. If not, we may need to analysis it first before jump into
implementation.
----- 原始郵件 -----
> 寄件者: "Marco Chen" <[email protected]>
> 收件者: "Chris Pearce" <[email protected]>
> 副本: "Blake Wu" <[email protected]>, "Evelyn Hung" <[email protected]>,
> [email protected], "Eric Chou"
> <[email protected]>, "Gary Chen" <[email protected]>
> 寄件備份: 2014 4 月 1 星期二 下午 1:49:50
> 主旨: Re: HLS support on B2G (Bug 577084 )
>
> Hi Chris,
>
> Yes, that is an option and the comment on the bug also mentioned it.
> https://bugzilla.mozilla.org/show_bug.cgi?id=577084#c15
>
> > I don't know much about MPEG-TS or HLS. Someone would need to
> > investigate whether a solution using JS libraries like the above would
> > work.
>
> Yes, Gary Chen on the cc list is a Gaia developer and he will investigate how
> to apply HLS on content layer.
>
> By the way, just to add a possible option.
> If we have enough resource to support MPEG2-TS de-muxer in Gecko then what
> else blocks this option?
>
> Thanks.
>
> ----- 原始郵件 -----
>
> 寄件者: "Chris Pearce" <[email protected]>
> 收件者: "Marco Chen" <[email protected]>, [email protected]
> 副本: "Blake Wu" <[email protected]>, "Evelyn Hung" <[email protected]>, "Eric
> Chou" <[email protected]>, "Gary Chen" <[email protected]>
> 寄件備份: 2014 4 月 1 星期二 下午 12:22:37
> 主旨: Re: HLS support on B2G (Bug 577084 )
>
> Can partners use JS libraries like https://github.com/RReverser/mpegts
> to convert MPEG-TS into MP4, for playback via MSE?
>
> If so, we would not need to implement anything we're not already
> planning to implement.
>
> I don't know much about MPEG-TS or HLS. Someone would need to
> investigate whether a solution using JS libraries like the above would work.
>
>
> Chris P.
>
>
>
> On 4/1/2014 4:07 PM, Marco Chen wrote:
> > (move from small group to public channel)
> >
> > Hi all,
> >
> > Why:
> > 1. The team belonged to stream 3 tried to bring more device categories into
> > Web Platform (FxOS) and candidates like TV/Set-Top Box/chromecast need HLS
> > to enrich their contents.
> > 2. Mozilla is on going to support MPEG-Dash (public standard) but in the
> > current market, there are still many content providers used HLS.
> >
> > How:
> > 1. Thanks for the MSE, the rough idea is to implement HLS protocol on top
> > of MSE. (Thanks for the consultant from Chris Double)
> > 2. According to HLS using MPEG2-TS, we may consider to support MPEG2-TS
> > de-muxer in Gecko or transform to MP4 container on content layer.
> > 3. The PlatformDecoderModule on FxOS can support H.264 & AAC.
> >
> > What:
> > 1. FxOS can support HLS and the device categories which relied on
> > application of streaming video can jump in without this gap.
> >
> > ------------------------------------------------
> >
> > One question is on the "How - 2".
> > Do FxOS support MPEG2-TS de-muxer in Gecko or transform to fragment MP4
> > format?
> >
> > May I know any suggestion? And also welcome for any feedback.
> >
> > Sincerely yours.
> >
> > ----- 原始郵件 -----
> >
> > 寄件者: "Chris Double" <[email protected]>
> > 收件者: "CJ Ku" <[email protected]>
> > 副本: "Matthew Gregan" <[email protected]>, "Taiwan Engineer Managers"
> > <[email protected]>, "Vincent Chang" <[email protected]>, "Robert
> > O'Callahan" <[email protected]>, "James Ho" <[email protected]>
> > 寄件備份: 2014 3 月 17 星期一 下午 10:33:44
> > 主旨: Re: HLS support on B2G
> >
> > DASH can be done at the application side using MSE. There are
> > JavaScript libraries for this available already. They work, with some
> > limitations, in Firefox nightly with MSE enabled. For example;
> >
> > <http://cd.pn/mse/webm/dash-player.html>
> >
> > Our implementation is still incomplete though so there is still work to be
> > done.
> >
> > I don't know much about HLS myself but the MSE spec implies that HLS
> > could be implemented in JS. I don't see any available libraries around
> > for doing this though so I cannot say for certain. I would recommend
> > the DASH approach since there are libraries for it and support is in
> > Chrome and Internet Explorer 11 with Gecko based browsers coming soon.
> >
> > Matthew may be able to comment more on the HLS case but he is
> > currently on leave so will probably not be able to immediately
> > respond.
> >
> > On Mon, Mar 17, 2014 at 10:47 PM, CJ Ku <[email protected]> wrote:
> >> Hi Matthew/ Chris,
> >> We got a request from vendor to have HLS support on B2G device. My
> >> understanding is, With MSE(Media source extension) support, DASH or
> >> HLS(HTTP live stream) can be done at application(js) side. Since you are
> >> definitely more familiar with MSE than I, may I have your opinion here?
> >> Thanks.
> >>
> >> ----- 原始郵件 -----
> >>> 寄件者: "James Ho" <[email protected]>
> >>> 收件者: "Taiwan Engineer Managers" <[email protected]>, "Vincent
> >>> Chang" <[email protected]>
> >>> 寄件備份: 2014 3 月 17 星期一 下午 12:44:39
> >>> 主旨: two questions re streaming protocol support
> >>>
> >>> 2 simple questions.. perhaps Vincent or CJ can answer?
> >>>
> >>> * What kind of streaming protocols does FxOS support today?
> >>>
> >>> * Does FxOS support HTTP Living Streaming (m3u8)?
> >>>
> >>> --
> >>> James Ho
> >>> Senior Director of Mobile Devices
> >>> Mozilla Corporation
> >>>
> >>>
>
>
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>
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