[vlc-devel] Re: [vlc] Playing 3GPP Audio Only LATM AAC/HE-AAC Streams
hartman at videolan.org
Wed Mar 1 15:13:32 CET 2006
Ticket created just to keep track of this issue.
This used to be Gildas area (as many parts of the MPEG-4 code). Since
Gildas is currently not working on VLC, these parts are without
maintainer at the moment. Any insight is welcomed.
On 19-feb-2006, at 13:41, Richard S. wrote:
> Ross Finlayson schrieb:
>> At 10:30 PM 2/16/2006, you wrote:
>>> Specifically, does the current version of VLC support playing 3GPP
>>> Audio Only LATM AAC/HE-AAC streams?
>>> This stream does not seem to play in VLC, yet it plays perfectly in
>>> mobile phones, QuickTime, and RealPlayer.
>> To follow up on Greg's question:
>> The (now anachronistically named) "livedotcom.cpp" recognizes
>> "audio/MP4A-LATM" AAC/RTP streams, and tags such streams with the
>> 'mp4a' fourcc - just the same as "audio/MPEG4-GENERIC" (i.e.,
>> non-LATM) AAC/RTP streams.
>> In other words, the RTSP/RTP libraries and interface code recognizes
>> and handles this type of stream, but it's possible that the decoding
>> library ("faad"?) does not.
>> So, a question for the "faad" (audiocoding.com) people: Can your
>> decoding library handle LATM-formatted AAC audio? If so, does
>> anything special need to be done to make this work?
>> Ross Finlayson
>> Live Networks, Inc. (LIVE555.COM)
> The stream ( rtsp://22.214.171.124/3gp.sdp ) play with Osmo4 (
> http://gpac.sf.net ) too. Libfaad 2.0 is used by Osmo4/MP4Client.
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