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authorWarren Dukes <warren.dukes@gmail.com>2004-07-17 14:54:22 +0000
committerWarren Dukes <warren.dukes@gmail.com>2004-07-17 14:54:22 +0000
commitefda73c74dd379b30bf56fcff89eee9338acc02f (patch)
treeab99529448243510a8b18013f715ba8e382d72e1 /src/replayGain.c
parent3edf33154308eafe212a0d536612b030e95ffc70 (diff)
downloadmpd-efda73c74dd379b30bf56fcff89eee9338acc02f.tar.gz
mpd-efda73c74dd379b30bf56fcff89eee9338acc02f.tar.xz
mpd-efda73c74dd379b30bf56fcff89eee9338acc02f.zip
add replaygain preamp
git-svn-id: https://svn.musicpd.org/mpd/trunk@1873 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to 'src/replayGain.c')
-rw-r--r--src/replayGain.c25
1 files changed, 24 insertions, 1 deletions
diff --git a/src/replayGain.c b/src/replayGain.c
index db401b4d1..dbd09aa36 100644
--- a/src/replayGain.c
+++ b/src/replayGain.c
@@ -29,6 +29,8 @@
/* Added 4/14/2004 by AliasMrJones */
static int replayGainState = REPLAYGAIN_OFF;
+static float replayGainPreamp = 1.0;
+
void initReplayGainState() {
if(!getConf()[CONF_REPLAYGAIN]) return;
@@ -43,17 +45,38 @@ void initReplayGainState() {
getConf()[CONF_REPLAYGAIN]);
exit(EXIT_FAILURE);
}
+
+ if(getConf()[CONF_REPLAYGAIN_PREAMP]) {
+ char * test;
+ float f = strtod(getConf()[CONF_REPLAYGAIN_PREAMP], &test);
+
+ if(*test != '\0') {
+ ERROR("Replaygain preamp \"%s\" is not a number\n",
+ getConf()[CONF_REPLAYGAIN_PREAMP]);
+ exit(EXIT_FAILURE);
+ }
+
+ if(f < -15 || f > 15) {
+ ERROR("Replaygain preamp \"%s\" is not between -15 and"
+ "15\n",
+ getConf()[CONF_REPLAYGAIN_PREAMP]);
+ exit(EXIT_FAILURE);
+ }
+
+ replayGainPreamp = pow(10, f/20.0);
+ }
}
int getReplayGainState() {
return replayGainState;
}
-float computeReplayGainScale(float gain, float peak){
+float computeReplayGainScale(float gain, float peak) {
float scale;
if(gain == 0.0) return(1);
scale = pow(10.0, gain/20.0);
+ scale*= replayGainPreamp;
if(scale > 15.0) scale = 15.0;
if (scale * peak > 1.0) {