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ReplayGainInfo: refactor to a class

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This commit is contained in:
Max Kellermann
2013-10-25 19:05:49 +02:00
parent 6d475c40de
commit d6e28c42e5
13 changed files with 65 additions and 68 deletions
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56
src/ReplayGainInfo.hxx
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@@ -21,6 +21,7 @@
#define MPD_REPLAY_GAIN_INFO_HXX
#include "check.h"
#include "Compiler.h"
#include <cmath>
@@ -34,40 +35,35 @@ enum ReplayGainMode {
struct ReplayGainTuple {
float gain;
float peak;
void Clear() {
gain = INFINITY;
peak = 0.0;
}
gcc_pure
bool IsDefined() const {
return !std::isinf(gain);
}
gcc_pure
float CalculateScale(float preamp, float missing_preamp,
bool peak_limit) const;
};
struct ReplayGainInfo {
ReplayGainTuple tuples[2];
void Clear() {
tuples[REPLAY_GAIN_ALBUM].Clear();
tuples[REPLAY_GAIN_TRACK].Clear();
}
/**
* Attempt to auto-complete missing data. In particular, if
* album information is missing, track gain is used.
*/
void Complete();
};
static inline void
replay_gain_tuple_init(ReplayGainTuple *tuple)
{
tuple->gain = INFINITY;
tuple->peak = 0.0;
}
static inline void
replay_gain_info_init(struct ReplayGainInfo *info)
{
replay_gain_tuple_init(&info->tuples[REPLAY_GAIN_ALBUM]);
replay_gain_tuple_init(&info->tuples[REPLAY_GAIN_TRACK]);
}
static inline bool
replay_gain_tuple_defined(const ReplayGainTuple *tuple)
{
return !std::isinf(tuple->gain);
}
float
replay_gain_tuple_scale(const ReplayGainTuple *tuple, float preamp, float missing_preamp, bool peak_limit);
/**
* Attempt to auto-complete missing data. In particular, if album
* information is missing, track gain is used.
*/
void
replay_gain_info_complete(ReplayGainInfo &info);
#endif