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-rw-r--r--CONTRIBUTORS1
-rw-r--r--HISTORY1
-rw-r--r--dvbdevice.c8
3 files changed, 8 insertions, 2 deletions
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 2087c1e3..edda4d34 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -630,6 +630,7 @@ Emil Naepflein <Emil.Naepflein@philosys.de>
for fixing selecting the device, because sometimes an FTA recording terminated a
CA recording
for suggesting to never delete edited recordings automatically if the disk runs full
+ for making volume control more linear
Gerald Berwolf <genka@genka.de>
for suggesting to deactivate some templates in tools.h in case some plugin needs to
diff --git a/HISTORY b/HISTORY
index 9825b23b..d1a9b03f 100644
--- a/HISTORY
+++ b/HISTORY
@@ -3022,3 +3022,4 @@ Video Disk Recorder Revision History
- Avoiding unnecessary section filter start/stops (thanks to Marco Schlüßler).
- Made the "Channel not available!" message and mtInfo instead of mtError (suggested
by Wayne Keer).
+- Made volume control more linear (thanks to Emil Naepflein).
diff --git a/dvbdevice.c b/dvbdevice.c
index 45e32b28..6bee3edc 100644
--- a/dvbdevice.c
+++ b/dvbdevice.c
@@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
- * $Id: dvbdevice.c 1.95 2004/10/16 12:51:56 kls Exp $
+ * $Id: dvbdevice.c 1.96 2004/10/16 14:38:24 kls Exp $
*/
#include "dvbdevice.h"
@@ -785,7 +785,11 @@ void cDvbDevice::SetVolumeDevice(int Volume)
{
if (HasDecoder()) {
audio_mixer_t am;
- am.volume_left = am.volume_right = Volume;
+ // conversion for linear volume response:
+ int i, Vol;
+ for (i = 1, Vol = 0; i < Volume; i++)
+ Vol += (256 - i) * (256 - i);
+ am.volume_left = am.volume_right = Vol / 21718;
CHECK(ioctl(fd_audio, AUDIO_SET_MIXER, &am));
}
}