Re: audio output
Re: audio output
- Subject: Re: audio output
- From: Jeff Moore <email@hidden>
- Date: Tue, 31 May 2005 13:07:28 -0700
Catching up on the back log. Sorry for the delay.
Your driver should always do it's best to resolve things so that they
are in synch. Your second proposal seems to most logical as your
driver should always respect the time at which the HAL says to write
the data. However, this would only be the case for the first client.
Subsequent clients starting up should not cause the video to move.
On May 5, 2005, at 7:05 AM, Tommy Schell wrote:
Hi,
This is a repeat request, as it's kind of a critical question for
me. Please help!!
I've got audio data coming into the output buffer of my CoreAudio
driver from Final Cut,
and at the same time there is video coming through Quicktime.
So I'm trying to sync the audio/video when playback starts.
My question is: do I assume that audio starts at the beginning of
my output buffer (at sample 0),
even if the actual audio data begins somewhere else (around sample
1100 typically)?
Or do I look for where the HAL starts writing data, and mark the
start of my first audio frame there?
So that I'm in sync with the first video frame.
Thanks,
Tommy Schell
--
Jeff Moore
Core Audio
Apple
_______________________________________________
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
| References: | |
| | >audio output (From: Tommy Schell <email@hidden>) |