[FFmpeg-devel] [PATCH] allow high audio sample rates in mov/mp4 muxer
Baptiste Coudurier
baptiste.coudurier
Thu Jun 10 22:44:00 CEST 2010
On 06/10/2010 01:27 PM, Justin Ruggles wrote:
> Alex Converse wrote:
>
>> On Thu, Jun 10, 2010 at 1:54 PM, Justin Ruggles
>> <justin.ruggles at gmail.com> wrote:
>>> Hi,
>>>
>>> This patch allows the use of sample rates> 65535 in mov/mp4 (e.g. 96kHz
>>> and 192kHz). I don't know where to find this info in the MP4 spec, but
>>> this is how the MPEG-4 ALS Reference Software does it.
>>>
>>
>> It might also be a good idea to look at the AAC 88.2/96 kHz test vectors.
>
> Well, it seems that it shouldn't be 0, but should be the actual sample
> rate using more than 16 bits. I guess the reserved value that follows
> is no longer reserved. I'll send a new patch soon.
Humm, I don't feel confident about this.
Can we ask ISO about this ?
--
Baptiste COUDURIER
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FFmpeg maintainer http://www.ffmpeg.org
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