[Speex-dev] jspeex question

Alexander Chemeris Alexander.Chemeris at sipez.com
Wed Nov 18 07:33:57 PST 2009


Hi,

Refer to FLV format specification available from Adobe site.
There is a pdf with this specification on their site, but I don't
recall where exactly.

On Wed, Nov 18, 2009 at 17:09, Jeff Ramin <jeff.ramin at singlewire.com> wrote:
>
> Is there a document somewhere that describes speex-encoded FLV files?
> What is a TC message?
>
> Thanks.
>
>
> Jozsef Vass wrote:
>> FLV contains TC messages? TC message payload contains a format byte and speex frames (up to eight). In the format byte 0xb0 indicates speex. Speex is always 16 kHz, 16 bit, mono.
>>
>> Jozsef
>>
>>
>> Message: 1
>> Date: Mon, 16 Nov 2009 14:40:20 -0600
>> From: Jeff Ramin <jeff.ramin at singlewire.com>
>> Subject: [Speex-dev] jspeex question
>> To: speex-dev at xiph.org
>> Message-ID: <4B01B8B4.8020904 at singlewire.com>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>>
>> I assume this list is for the jspeex project, correct?
>>
>> What I am trying to achieve: I have a FLV (flash audio) file that contains
>> speex-encoded data. I want to read that file, extract the audio bits, and
>> convert them to a different format.
>>
>> I've written a little java app to do this, but I receive this error when
>> running it:
>>
>> Exception in thread "main" java.io.StreamCorruptedException: More than
>> two sideband layers found
>>
>> I've got a feeling the SpeexDecoder class wants/assumes a certain amount
>> of data when decoding and I'm not meeting that expectation.
>>
>> Is that correct? How much data should I hand to the decoder when I call
>> the processData() method?
>>
>> Thanks!
>>
>>
>
>
> --
> Jeff Ramin
> Software Engineer
> Singlewire Software
> PO Box 46218
> Madison, WI 53744-6218
>
> Phone Direct - 608.298.1024
> www.singlewire.com
>
> _______________________________________________
> Speex-dev mailing list
> Speex-dev at xiph.org
> http://lists.xiph.org/mailman/listinfo/speex-dev
>



-- 
Regards,
Alexander Chemeris.


More information about the Speex-dev mailing list