[FFmpeg-devel] [PATCH] AAC decoder

Baptiste Coudurier baptiste.coudurier
Thu Apr 3 10:52:22 CEST 2008


Steven Ellis wrote:
> On Wed, April 2, 2008 20:51, Nico Sabbi wrote:
>> On Wednesday 02 April 2008 10:37:42 Baptiste Coudurier wrote:
>>> Hi,
>>> Nico Sabbi wrote:
>>>> On Wednesday 02 April 2008 08:08:40 Andreas ?man wrote:
>>>>> Steven Ellis wrote:
>>>>>> On Wed, April 2, 2008 02:56, Andreas ?man wrote:
>>>>>>> Andreas ?man wrote:
>>>>>>>> Hi
>>>>>>>> Here is the AAC decodoer from the soc repo.
>>>>>>> .. and here is an updated version with mpeg4audio.[ch] stuff.
>>>>>> Any chance this will handle the LATM encapsulated AAC audio
>>>>>> that you can get in DVB broadcasts?
>>>>> Nope, I believe that should be added in the AAC parser.
>>>> in mplayer's libfaad there's already the necessary LATM Parser,
>>>> although in a reasonably simplified version (only the 2 most
>>>> common situations are handled)
>>> Is LATM prefered over ADTS in DVB ? Why is that ?
>> I wouldn't say it's preferred, also because being LATM a bitstream
>> syntax brain-farted to carry multiple streams it doesn't make the
>> slighest sense in mpeg-ts.
>> It's one more of the possible syntaxes allowed to carry AAC, and
>> the worst of all if you ask me, but still it's used in Norway and New
>> Zealand.
> Some of the updated DVB specs I've read appear to mandate the use of LATM
> for HE-AAC over DVB.

This will need a clear quote from the specs :>


Baptiste COUDURIER                              GnuPG Key Id: 0x5C1ABAAA
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