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Working but dirty implementation of GUI for Timeline and gaps of

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MediaPlayer.
This commit is contained in:
brunoherbelin
2020-08-19 23:15:54 +02:00
parent a4b61927bc
commit 182f204d80
7 changed files with 265 additions and 215 deletions
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55
Timeline.h
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@@ -12,23 +12,22 @@ struct TimeInterval
{
GstClockTime begin;
GstClockTime end;
TimeInterval()
{
reset();
}
TimeInterval(GstClockTime a, GstClockTime b) : TimeInterval()
{
if ( a != GST_CLOCK_TIME_NONE && b != GST_CLOCK_TIME_NONE) {
begin = MIN(a, b);
end = MAX(a, b);
}
}
inline void reset()
{
begin = GST_CLOCK_TIME_NONE;
end = GST_CLOCK_TIME_NONE;
}
TimeInterval(GstClockTime b, GstClockTime e)
{
if ( b < e ) {
begin = b;
end = e;
} else {
begin = GST_CLOCK_TIME_NONE;
end = GST_CLOCK_TIME_NONE;
}
}
inline GstClockTime duration() const
{
return is_valid() ? (end - begin) : GST_CLOCK_TIME_NONE;
@@ -63,21 +62,16 @@ struct TimeInterval
}
};
struct includesTime: public std::unary_function<TimeInterval, bool>
struct order_comparator
{
inline bool operator()(const TimeInterval s) const
inline bool operator () (const TimeInterval a, const TimeInterval b) const
{
return s.includes(_t);
return (a < b);
}
includesTime(GstClockTime t) : _t(t) { }
private:
GstClockTime _t;
};
typedef std::set<TimeInterval> TimeIntervalSet;
typedef std::set<TimeInterval, order_comparator> TimeIntervalSet;
class Timeline
@@ -85,8 +79,10 @@ class Timeline
public:
Timeline();
~Timeline();
Timeline& operator = (const Timeline& b);
void reset();
bool is_valid();
// global properties of the timeline
// timeline is invalid untill all 3 are set
@@ -106,19 +102,16 @@ public:
bool addGap(GstClockTime begin, GstClockTime end);
bool removeGaptAt(GstClockTime t);
void clearGaps();
void toggleGaps(GstClockTime from, GstClockTime to);
// get gaps
size_t numGaps();
bool gapAt(const GstClockTime t, TimeInterval &gap);
std::list< std::pair<guint64, guint64> > gaps() const;
// direct access to the array representation of the timeline
// TODO : implement an ImGui widget to plot a timeline instead of an array
float *array();
size_t arraySize();
// synchronize data structures
void updateGapsFromArray();
void updateArrayFromGaps();
void updateGapsFromArray(float *array_, size_t array_size_);
void fillArrayFromGaps(float *array_, size_t array_size_);
private:
@@ -129,12 +122,6 @@ private:
// main data structure containing list of gaps in the timeline
TimeIntervalSet gaps_;
// supplementary data structure needed to display and edit the timeline
bool need_update_;
void init_array();
float *array_;
size_t array_size_;
};
#endif // TIMELINE_H