Re: Producing Redbook-compliant data
Re: Producing Redbook-compliant data
- Subject: Re: Producing Redbook-compliant data
- From: Stephen Davis <email@hidden>
- Date: Fri, 2 May 2008 13:18:16 -0700
On May 2, 2008, at 1:04 PM, Stephen Davis wrote:
On May 2, 2008, at 12:59 PM, Fabio wrote:
Are you sure about this?
Hello Alex, thank you for your answer.
Try to open a movie file with QuickTimePlayer, and choose "Export"
in the File menu. In the popup menu, set the output format to AIFF.
Now click the Options button. The "Little endian" checkbox is
disabled.
I also modified the "QTExtractAndConvertToAIFF" sample code to make
it produce little endian data. The process returns a "frmt" error
(or maybe it was "fmt?").
Technically, AIFF only supports big-endian data so outputting to WAV
is a way to get little-endian data. I don't know offhand if the
DiscRecording API supports WAV as an input but I'd be surprised if
it didn't. I'd also be surprised if the DiscRecording API didn't
accept big-endian AIFF files but I have no experience with it.
To clarify my statement, 'AIFF' only supports big-endian PCM data.
'AIFC' supports lots of compression formats, including little-endian
PCM, which is considered a compression format by the old
SoundManager. Either way, exporting to WAV will probably fix your
issue as it appears the AudioFile exporter for AIFC does not support
little-endian PCM formats either.
stephen
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden