[gstreamer-bugs] [Bug 615740] FAAD plugin do not handle AAC LATM transport format

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=615740
  GStreamer | gst-plugins-bad | git

--- Comment #6 from André Dieb Martins <andre.dieb at gmail.com> 2010-07-13 23:58:50 UTC ---
(In reply to comment #5)
> Hi guys,
> 
> I've also been working on AAC code for GStreamer lately, and it involves LOAS.
> I've even posted to a mailing list a patch to extend aac typefind for LOAS
> streams. I would love to coordinate with you.
> 
> My task at hand is a little different: I have LOAS stream, written by
> commercial encoder, that I have to mux to FLV using gstreamer with video that
> comes from another gstreamer pipeline. The hard part is demuxing LATM in LOAS
> into raw AAC packets on one hand and reading and storing in "codec_data" field
> in caps AudioSpecificConfig that comes with each AAC stream.
> 
> The first task was to recognize LOAS stream as it comes from FIFO through
> simple filesrc. That's what my typefind patch is doing.
> Next is to frame the LOAS packets for further processing, that's what I suppose
> should be done by aacparse plugin which I'm currently working on. But I see
> that in your patch you're doing exacly the same thing: parsing LOAS and getting
> LATM out of it, along with AudioSpecificConfig.
> 
> How about getting the parsing part out so both aacparse and gstfaad could use
> that without code duplication? Both plugins are in gst-plugins-bad module so it
> might be a little easier, but I'm relatively new to GStreamer development
> process, so I'd welcome suggestions from more experienced developers.

Sorry, I might have misunderstood: getting the LAOS/LATM parsing out of gstfaad
into aacparse?

Then one would use gstfaad only for decoding what faad supports (ADTS, raw). In
case of different AAC profiles, user would use aacparse+faad?

I'll gladly test any patch and help you if it is decided to go on with this.

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