[vlc-devel] Re: [vlc] Playing 3GPP Audio Only LATM AAC/HE-AAC Streams

[Richard S.]

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.
>>
>> rtsp://66.220.31.130/3gp.sdp
>
> 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)
>     <http://www.live555.com/>
>
The stream ( rtsp://66.220.31.130/3gp.sdp ) play with Osmo4 (
http://gpac.sf.net ) too. Libfaad 2.0 is used by Osmo4/MP4Client.

Richard

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