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osxaudio fixes: multichannel and changing caps.

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Ensure we create the ringbuffer segment size as a multiple of the
bytes per sample (fixes 6-channel output).
Reset the segoffset when acquiring the ringbuffer, so we don't retain
a bogus offset when caps change.
This commit is contained in:
Michael Smith 2009-02-04 16:40:13 -08:00
parent 1dc5c34143
commit 555c804b7d
1 changed files with 7 additions and 4 deletions
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11
sys/osxaudio/gstosxringbuffer.c
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@ -412,8 +412,8 @@ gst_osx_ring_buffer_acquire (GstRingBuffer * buf, GstRingBufferSpec * spec)
goto done;
}
spec->segsize = 4096;
spec->segtotal = 16;
spec->segsize = (spec->latency_time * spec->rate / G_USEC_PER_SEC) * spec->bytes_per_sample;
spec->segtotal = spec->buffer_time / spec->latency_time;
/* create AudioBufferList needed for recording */
if (osxbuf->is_src) {
@ -433,6 +433,8 @@ gst_osx_ring_buffer_acquire (GstRingBuffer * buf, GstRingBufferSpec * spec)
buf->data = gst_buffer_new_and_alloc (spec->segtotal * spec->segsize);
memset (GST_BUFFER_DATA (buf->data), 0, GST_BUFFER_SIZE (buf->data));
osxbuf->segoffset = 0;
status = AudioUnitInitialize (osxbuf->audiounit);
if (status) {
gst_buffer_unref (buf->data);
@ -568,8 +570,9 @@ gst_osx_ring_buffer_start (GstRingBuffer * buf)
}
osxbuf->io_proc_active = TRUE;
} else
osxbuf->io_proc_needs_deactivation = FALSE;
}
osxbuf->io_proc_needs_deactivation = FALSE;
status = AudioOutputUnitStart (osxbuf->audiounit);
if (status) {