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place timecode conversion functions into a Timecode class rather than an olive namespace

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Code cleanup and improvement.
This commit is contained in:
itsmattkc
2019-12-26 17:20:58 +11:00
parent 3b2fcf4aae
commit 520b8b46fa
19 changed files with 110 additions and 92 deletions
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app/common/timecodefunctions.h
+35 -23
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@@ -25,30 +25,42 @@
#include "common/rational.h"
namespace olive {
/**
* @brief Functions for converting times/timecodes/timestamps
*
* Olive uses the following terminology through its code:
*
* `time` - time in seconds presented in a rational form
* `timebase` - the base time unit of an audio/video stream in seconds
* `timestamp` - an integer representation of a time in timebase units (in many cases is used like a frame number)
* `timecode` a user-friendly string representation of a time according to Timecode::Display
*/
class Timecode {
public:
enum Display {
kTimecodeDropFrame,
kTimecodeNonDropFrame,
kTimecodeSeconds,
kFrames,
kMilliseconds
};
static Display CurrentDisplay();
/**
* @brief Convert a timestamp (according to a rational timebase) to a user-friendly string representation
*/
static QString timestamp_to_timecode(const int64_t &timestamp, const rational& timebase, const Display &display, bool show_plus_if_positive = false);
static int64_t timecode_to_timestamp(const QString& timecode, const rational& timebase, const Display& display, bool *ok = nullptr);
static int64_t time_to_timestamp(const rational& time, const rational& timebase);
static int64_t time_to_timestamp(const double& time, const rational& timebase);
static rational timestamp_to_time(const int64_t& timestamp, const rational& timebase);
static bool TimebaseIsDropFrame(const rational& timebase);
enum TimecodeDisplay {
kTimecodeDropFrame,
kTimecodeNonDropFrame,
kTimecodeSeconds,
kFrames,
kMilliseconds
};
TimecodeDisplay CurrentTimecodeDisplay();
/**
* @brief Convert a timestamp (according to a rational timebase) to a user-friendly string representation
*/
QString timestamp_to_timecode(const int64_t &timestamp, const rational& timebase, const TimecodeDisplay& display, bool show_plus_if_positive = false);
int64_t timecode_to_timestamp(const QString& timecode, const rational& timebase, const TimecodeDisplay& display, bool *ok = nullptr);
int64_t time_to_timestamp(const rational& time, const rational& timebase);
int64_t time_to_timestamp(const double& time, const rational& timebase);
rational timestamp_to_time(const int64_t& timestamp, const rational& timebase);
}
#endif // TIMECODEFUNCTIONS_H