path: root/drivers/isdn/mISDN/dsp.h
diff options
authorAndreas Eversberg <andreas@eversberg.eu>2008-08-02 22:51:52 +0200
committerKarsten Keil <kkeil@suse.de>2009-01-09 22:44:22 +0100
commit8dd2f36f317569665e454268a2677cfba3e848f1 (patch)
tree62f0d30aa090594648ed21cb9a863e4cc2b4f4fd /drivers/isdn/mISDN/dsp.h
parent69e656cc16511719a89d83373c48172d3f39bc5f (diff)
mISDN: Add feature via MISDN_CTRL_FILL_EMPTY to fill fifo if empty
This prevents underrun of fifo when filled and in case of an underrun it prevents subsequent underruns due to jitter. Improve dsp, so buffers are kept filled with a certain delay, so moderate jitter will not cause underrun all the time -> the audio quality is highly improved. tones are not interrupted by gaps anymore, except when CPU is stalling or in high load. Signed-off-by: Andreas Eversberg <andreas@eversberg.eu> Signed-off-by: Karsten Keil <kkeil@suse.de>
Diffstat (limited to 'drivers/isdn/mISDN/dsp.h')
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/isdn/mISDN/dsp.h b/drivers/isdn/mISDN/dsp.h
index 6c3fed6b8d4..ded94806933 100644
--- a/drivers/isdn/mISDN/dsp.h
+++ b/drivers/isdn/mISDN/dsp.h
@@ -198,6 +198,7 @@ struct dsp {
/* hardware stuff */
struct dsp_features features;
int features_rx_off; /* set if rx_off is featured */
+ int features_fill_empty; /* set if fill_empty is featured */
int pcm_slot_rx; /* current PCM slot (or -1) */
int pcm_bank_rx;
int pcm_slot_tx;