'RE: [datatype-dev] CN: mpeg2 layer 3 audio support in mp4 splitter'

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List:       helix-datatype-dev
Subject:    RE: [datatype-dev] CN: mpeg2 layer 3 audio support in mp4 splitter
From:       "Leina Tani" <ltani () real ! com>
Date:       2008-04-18 1:15:58
Message-ID: 065f01c8a0f1$c29a3e30$c140a8c0 () corp ! real ! com
[Download RAW message or body]

No problem; it can be confusing on our end as well.  

Thanks,

-leina

-----Original Message-----
From: Chen, Weian [mailto:weian.chen@intel.com] 
Sent: Thursday, April 17, 2008 6:09 PM
To: ltani@real.com; ehyche@real.com; datatype-dev@helixcommunity.org
Cc: Shen, Cathy; Mei, Jianfeng; Guo, Young
Subject: RE: [datatype-dev] CN: mpeg2 layer 3 audio support in mp4 splitter

Leina:

Yes, it is fixed.

There are some mismatches between internal and external the bug number, so I
made a mistake, sorry.

Weian

-----Original Message-----
From: Leina Tani [mailto:ltani@real.com] 
Sent: 2008年4月18日 0:24
To: Chen, Weian; ehyche@real.com; datatype-dev@helixcommunity.org
Cc: Shen, Cathy; Mei, Jianfeng; Guo, Young
Subject: RE: [datatype-dev] CN: mpeg2 layer 3 audio support in mp4 splitter

Hi Weian,

What about bug 8050?  In our project triage yesterday we thought your
checkin may have fixed this bug as well.

Thank you,
-leina

-----Original Message-----
From: datatype-dev-bounces@helixcommunity.org
[mailto:datatype-dev-bounces@helixcommunity.org] On Behalf Of Chen, Weian
Sent: Thursday, April 17, 2008 7:15 AM
To: ehyche@real.com; datatype-dev@helixcommunity.org
Cc: Shen, Cathy; Mei, Jianfeng; Guo, Young
Subject: RE: [datatype-dev] CN: mpeg2 layer 3 audio support in mp4 splitter

Eric:

Part of bug https://bugs.helixcommunity.org/show_bug.cgi?id=7975&link=0 is
fixed (The MPEG4 splitter incorrectly recognize MP3 as AAC sometime), and I
am investigating on the rest part.

Thanks!
Weian
-----Original Message-----
From: Eric Hyche [mailto:ehyche@real.com] 
Sent: 2008年4月16日 23:00
To: Chen, Weian; datatype-dev@helixcommunity.org
Cc: Guo, Young; Shen, Cathy; Mei, Jianfeng
Subject: RE: [datatype-dev] CN: mpeg2 layer 3 audio support in mp4 splitter

Weian,

Does this fix any of the filed bugs in the midplayer-private project?

Eric

=============================================
Eric Hyche (ehyche@real.com)
Technical Lead
RealNetworks, Inc.  

> -----Original Message-----
> From: Chen, Weian [mailto:weian.chen@intel.com] 
> Sent: Wednesday, April 16, 2008 9:44 AM
> To: ehyche@real.com; datatype-dev@helixcommunity.org
> Cc: Guo, Young; Shen, Cathy; Mei, Jianfeng
> Subject: [datatype-dev] CN: mpeg2 layer 3 audio support in 
> mp4 splitter
> 
> 
> Commit to HEAD and hxclient_3_1_0_atlas branch.
> 
> Weian
> -----Original Message-----
> From: Eric Hyche [mailto:ehyche@real.com] 
> Sent: 2008年4月16日 20:52
> To: Chen, Weian; datatype-dev@helixcommunity.org
> Cc: Shen, Cathy
> Subject: RE: [datatype-dev] CR: mpeg2 layer 3 audio support 
> in mp4 splitter
> 
> 
> This change look good. Ok for checkin
> to HEAD and hxclient_3_1_0_atlas.
> 
> Eric
> 
> =============================================
> Eric Hyche (ehyche@real.com)
> Technical Lead
> RealNetworks, Inc.  
> 
> > -----Original Message-----
> > From: datatype-dev-bounces@helixcommunity.org 
> > [mailto:datatype-dev-bounces@helixcommunity.org] On Behalf Of 
> > Chen, Weian
> > Sent: Wednesday, April 16, 2008 8:38 AM
> > To: datatype-dev@helixcommunity.org
> > Cc: Shen, Cathy
> > Subject: [datatype-dev] CR: mpeg2 layer 3 audio support in 
> > mp4 splitter
> > 
> > Synopsis: 
> > 
> >   Mpeg2 layer 3 audio support in mp4 splitter
> > 
> >  
> > 
> > Overview: 
> > 
> >   When the audio profile object indication is 
> > MP4OBJ_AUDIO_ISO_IEC_13818_3, it can not be handled by mp4 
> > splitter, and the default audio mime type 
> > audio/X-RN-MP4-RAWAU is assigned to the audio stream, but 
> > actually it is an mpeg2 audio, which makes the player 
> > crashed. And here when we find the audio profile object 
> > indication is MP4OBJ_AUDIO_ISO_IEC_13818_3, we set its mime 
> > type with value audio/MPEG-ELEMENTARY, and then the stream 
> > can be played back successfully.
> > 
> >  
> > 
> > Files Added:
> > 
> >   None
> > 
> >  
> > 
> > Files Modified:
> > 
> >   datatype/mp4/fileformat/qtatmmgs.cpp
> > 
> >  
> > 
> > Image Size and Heap Use impact (Client -Only):
> > 
> >   Little
> > 
> >  
> > 
> > Platforms and Profiles Affected:
> > 
> >   platform:   linux-2.2-libc6-gcc32-i586
> > 
> >   profile:      helix-client-all-defines
> > 
> >  
> > 
> > Distribution Libraries Affected:
> > 
> >   <mp4fformat.so>
> > 
> >  
> > 
> > Distribution library impact and planned action:
> > 
> >   <None>
> > 
> >  
> > 
> > Platforms and Profiles Build Verified:
> > 
> >   Set BIF branch    -> hxclient_3_1_0_atlas_restricted
> > 
> >   Set Target(s)      -> datatype_mp4_fileformat
> > 
> >   Set Profile        -> helix-client-all-defines
> > 
> >   System ID        -> linux-2.2-libc6-gcc32-i586
> > 
> >  
> > 
> > Branch: 
> > 
> >   HEAD, hxclient_3_1_0_atlas
> > 
> >  
> > 
> > Copyright assignment: <MUST be one of the following statements >
> > 
> >  
> > 
> > 2.      Intel has signed and delivered a Joint Copyright Assignment
> > 
> >  
> > 
> >            to RealNetworks, and received acknowledgment that the 
> > 
> >  
> > 
> >            agreement was received. 
> > 
> >  
> > 
> > Files Attached:
> > 
> >   datatype-mp4splitter-audio-qtatmmgs.diff
> > 
> >  
> > 
> > Weian
> > 
> >  
> > 
> > 
> 

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