[Yet another SoC] - Mpeg2 Mux proposal

[lyang]

Hi all,

I know people are expecting now an April Fool's message, but unfortunately this post is absolutely not a candidate ;)

My name is Lin YANG, oxcsnicho on the IRC, a student from the Chinese University of HONG KONG. I would like to apply for the Mpeg2 Muxer project for this year's SoC. Here is a brief proposal on what I'm doing for the project:

 * Enhance the current ts muxer, including
  1) Investigation of the recent issues about h264+aac working on mpegtsmux
  2) Implement some more options to make the muxer robust, like specifying the pid, specifying the bit rate, forcing PMT, etc.
 * Write a PS muxer from scratch

For TS it is sometimes painful to ensure the playback quality on different conditions, so the goal is to make it working with mainstream players, by providing options to cater to different needs and intelligence level. For the PS muxer, it is one of the few still remaining major muxers that GStreamer would need. So there is no reason not to write one :)

Hope to get advices and feedback! Any comment would be welcome.

BTW, I don't see a mentor on the wiki page for this project. Is there anyone interested in being the mentor?

Thanks!

[Edward Hervey]

Hi,

On Tue, 2009-03-31 at 18:52 -0700, lyang wrote:
> Hi all,
>
> I know people are expecting now an April Fool's message, but unfortunately
> this post is absolutely not a candidate ;)

   Good move :)

>
> My name is Lin YANG, oxcsnicho on the IRC, a student from the Chinese
> University of HONG KONG. I would like to apply for the Mpeg2 Muxer project
> for this year's SoC. Here is a brief proposal on what I'm doing for the
> project:
>
>  * Enhance the current ts muxer, including
>   1) Investigation of the recent issues about h264+aac working on mpegtsmux
>   2) Implement some more options to make the muxer robust, like specifying
> the pid, specifying the bit rate, forcing PMT, etc.
>  * Write a PS muxer from scratch
>
> For TS it is sometimes painful to ensure the playback quality on different
> conditions, so the goal is to make it working with mainstream players, by
> providing options to cater to different needs and intelligence level. For
> the PS muxer, it is one of the few still remaining major muxers that
> GStreamer would need. So there is no reason not to write one :)
>
> Hope to get advices and feedback! Any comment would be welcome.
>
> BTW, I don't see a mentor on the wiki page for this project. Is there anyone
> interested in being the mentor?

  I am sure we will be able to find a mentor for such a project.

  But you should send your proposal on the SoC website, so that we can
review it there. hurry up, the deadline for proposals is soon.

   Edward

>
> Thanks!


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[yangsb]

Good try.
: - )

lyang wrote

Hi all,

I know people are expecting now an April Fool's message, but unfortunately this post is absolutely not a candidate ;)

My name is Lin YANG, oxcsnicho on the IRC, a student from the Chinese University of HONG KONG. I would like to apply for the Mpeg2 Muxer project for this year's SoC. Here is a brief proposal on what I'm doing for the project:

 * Enhance the current ts muxer, including
  1) Investigation of the recent issues about h264+aac working on mpegtsmux
  2) Implement some more options to make the muxer robust, like specifying the pid, specifying the bit rate, forcing PMT, etc.
 * Write a PS muxer from scratch

For TS it is sometimes painful to ensure the playback quality on different conditions, so the goal is to make it working with mainstream players, by providing options to cater to different needs and intelligence level. For the PS muxer, it is one of the few still remaining major muxers that GStreamer would need. So there is no reason not to write one :)

Hope to get advices and feedback! Any comment would be welcome.

BTW, I don't see a mentor on the wiki page for this project. Is there anyone interested in being the mentor?

Thanks!

[lyang]

Edward Hervey wrote

  I am sure we will be able to find a mentor for such a project.

  But you should send your proposal on the SoC website, so that we can
review it there. hurry up, the deadline for proposals is soon.

Thanks for you kind reply, Edward

Finally got a draft and uploaded (painful all-nighter...) Wish to get feedback soon :)


Cheers,
Lin

[lyang]

 

yangsb wrote

Good try.
: - )

Thanks for encouraging, yang

Lin

P.S.: Regarding to the h264+aac problem, I think the problem stems from an inconsistent assumption made by the muxer and the video players on the PSI information. If you write a program to extract the PSI tags you would see what's wrong. I'll update my observation onto the wiki after having some sleep.