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tag/ReplayGain: move code to template function

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This commit is contained in:
Max Kellermann 2014-09-24 22:19:55 +02:00
parent d1e31261fe
commit 9f4fc8ad33
1 changed files with 36 additions and 14 deletions
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50
src/tag/ReplayGain.cxx
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@ -25,24 +25,46 @@
#include <assert.h>
#include <stdlib.h>
template<typename T>
static bool
ParseReplayGainTagTemplate(ReplayGainInfo &info, const T t)
{
const char *value;
if ((value = t["replaygain_track_gain"]) != nullptr) {
info.tuples[REPLAY_GAIN_TRACK].gain = atof(value);
return true;
} else if ((value = t["replaygain_album_gain"]) != nullptr) {
info.tuples[REPLAY_GAIN_ALBUM].gain = atof(value);
return true;
} else if ((value = t["replaygain_track_peak"]) != nullptr) {
info.tuples[REPLAY_GAIN_TRACK].peak = atof(value);
return true;
} else if ((value = t["replaygain_album_peak"]) != nullptr) {
info.tuples[REPLAY_GAIN_ALBUM].peak = atof(value);
return true;
} else
return false;
}
bool
ParseReplayGainTag(ReplayGainInfo &info, const char *name, const char *value)
{
assert(name != nullptr);
assert(value != nullptr);
if (StringEqualsCaseASCII(name, "replaygain_track_gain")) {
info.tuples[REPLAY_GAIN_TRACK].gain = atof(value);
return true;
} else if (StringEqualsCaseASCII(name, "replaygain_album_gain")) {
info.tuples[REPLAY_GAIN_ALBUM].gain = atof(value);
return true;
} else if (StringEqualsCaseASCII(name, "replaygain_track_peak")) {
info.tuples[REPLAY_GAIN_TRACK].peak = atof(value);
return true;
} else if (StringEqualsCaseASCII(name, "replaygain_album_peak")) {
info.tuples[REPLAY_GAIN_ALBUM].peak = atof(value);
return true;
} else
return false;
struct NameValue {
const char *name;
const char *value;
gcc_pure
const char *operator[](const char *n) const {
return StringEqualsCaseASCII(name, n)
? value
: nullptr;
}
};
return ParseReplayGainTagTemplate(info, NameValue{name, value});
}