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Fix Winamp reading wrong replaygain info in rare cases

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This commit is contained in:
bnnm 2020-04-12 20:36:04 +02:00
parent b2f06707a8
commit 221ebf0152
1 changed files with 39 additions and 20 deletions
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59
winamp/in_vgmstream.c
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@ -978,29 +978,46 @@ static void apply_config(VGMSTREAM * vgmstream, winamp_song_config *current) {
static int winampGetExtendedFileInfo_common(in_char* filename, char *metadata, char* ret, int retlen);
static double get_album_gain_volume(const in_char *fn) {
char replaygain_gain[64], replaygain_peak[64];
char replaygain[64];
double gain = 0.0;
int had_replaygain = 0;
if (settings.gain_type != REPLAYGAIN_NONE) {
if (settings.gain_type == REPLAYGAIN_ALBUM && winampGetExtendedFileInfo_common((in_char *)fn, "replaygain_album_gain", replaygain_gain, sizeof(replaygain_gain))) {
gain = atof(replaygain_gain);
had_replaygain = 1;
}
if (!had_replaygain && winampGetExtendedFileInfo_common((in_char *)fn, "replaygain_track_gain", replaygain_gain, sizeof(replaygain_gain))) {
gain = atof(replaygain_gain);
had_replaygain = 1;
}
if (had_replaygain) {
double vol = pow(10.0, gain / 20.0), peak = 1.0;
if (settings.clip_type == REPLAYGAIN_ALBUM && winampGetExtendedFileInfo_common((in_char *)fn, "replaygain_album_peak", replaygain_peak, sizeof(replaygain_peak))) {
peak = atof(replaygain_peak);
}
else if (settings.clip_type != REPLAYGAIN_NONE && winampGetExtendedFileInfo_common((in_char *)fn, "replaygain_track_peak", replaygain_peak, sizeof(replaygain_peak))) {
peak = atof(replaygain_peak);
}
return peak != 1.0 ? min(vol, 1.0 / peak) : vol;
}
if (settings.gain_type == REPLAYGAIN_NONE)
return 1.0;
replaygain[0] = '\0'; /* reset each time to make sure we read actual tags */
if (settings.gain_type == REPLAYGAIN_ALBUM
&& winampGetExtendedFileInfo_common((in_char *)fn, "replaygain_album_gain", replaygain, sizeof(replaygain))
&& replaygain[0] != '\0') {
gain = atof(replaygain);
had_replaygain = 1;
}
replaygain[0] = '\0';
if (!had_replaygain
&& winampGetExtendedFileInfo_common((in_char *)fn, "replaygain_track_gain", replaygain, sizeof(replaygain))
&& replaygain[0] != '\0') {
gain = atof(replaygain);
had_replaygain = 1;
}
if (had_replaygain) {
double vol = pow(10.0, gain / 20.0);
double peak = 1.0;
replaygain[0] = '\0';
if (settings.clip_type == REPLAYGAIN_ALBUM
&& winampGetExtendedFileInfo_common((in_char *)fn, "replaygain_album_peak", replaygain, sizeof(replaygain))
&& replaygain[0] != '\0') {
peak = atof(replaygain);
}
else if (settings.clip_type != REPLAYGAIN_NONE
&& winampGetExtendedFileInfo_common((in_char *)fn, "replaygain_track_peak", replaygain, sizeof(replaygain))
&& replaygain[0] != '\0') {
peak = atof(replaygain);
}
return peak != 1.0 ? min(vol, 1.0 / peak) : vol;
}
return 1.0;
}
@ -1648,6 +1665,8 @@ static int winampGetExtendedFileInfo_common(in_char* filename, char *metadata, c
return 1;
fail:
//TODO: is this always needed for Winamp to use replaygain?
//strcpy(ret, "1.0"); //should set some default value?
return strcasecmp(metadata, "replaygain_track_gain") == 0 ? 1 : 0;
}