Aegisub/aegisub/src/audio_marker.cpp

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// Copyright (c) 2012, Thomas Goyne <plorkyeran@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// Aegisub Project http://www.aegisub.org/
/// @file audio_marker.cpp
/// @see audio_marker.h
/// @ingroup audio_ui
///
#include "config.h"
#include "audio_marker.h"
#include "include/aegisub/context.h"
#include "options.h"
#include "pen.h"
#include "video_context.h"
#include <algorithm>
class AudioMarkerKeyframe : public AudioMarker {
Pen *style;
int position;
public:
AudioMarkerKeyframe(Pen *style, int position) : style(style), position(position) { }
int GetPosition() const { return position; }
FeetStyle GetFeet() const { return Feet_None; }
bool CanSnap() const { return true; }
wxPen GetStyle() const { return *style; }
operator int() const { return position; }
};
AudioMarkerProviderKeyframes::AudioMarkerProviderKeyframes(agi::Context *c, const char *opt_name)
: vc(c->videoController)
, keyframe_slot(vc->AddKeyframesListener(&AudioMarkerProviderKeyframes::Update, this))
, timecode_slot(vc->AddTimecodesListener(&AudioMarkerProviderKeyframes::Update, this))
, enabled_slot(OPT_SUB(opt_name, &AudioMarkerProviderKeyframes::Update, this))
, enabled_opt(OPT_GET(opt_name))
, style(new Pen("Colour/Audio Display/Keyframe"))
{
Update();
}
AudioMarkerProviderKeyframes::~AudioMarkerProviderKeyframes() { }
void AudioMarkerProviderKeyframes::Update() {
std::vector<int> const& keyframes = vc->GetKeyFrames();
agi::vfr::Framerate const& timecodes = vc->FPS();
if (keyframes.empty() || !timecodes.IsLoaded() || !enabled_opt->GetBool()) {
if (!markers.empty()) {
markers.clear();
AnnounceMarkerMoved();
}
return;
}
markers.clear();
markers.reserve(keyframes.size());
for (int frame : keyframes)
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markers.emplace_back(style.get(), timecodes.TimeAtFrame(frame, agi::vfr::START));
AnnounceMarkerMoved();
}
void AudioMarkerProviderKeyframes::GetMarkers(TimeRange const& range, AudioMarkerVector &out) const {
// Find first and last keyframes inside the range
std::vector<AudioMarkerKeyframe>::const_iterator
a = lower_bound(markers.begin(), markers.end(), range.begin()),
b = upper_bound(markers.begin(), markers.end(), range.end());
// Place pointers to the markers in the output vector
for (; a != b; ++a)
out.push_back(&*a);
}
class VideoPositionMarker : public AudioMarker {
Pen style;
int position;
public:
VideoPositionMarker()
: style("Colour/Audio Display/Play Cursor")
, position(-1)
{
}
void SetPosition(int new_pos) { position = new_pos; }
int GetPosition() const { return position; }
FeetStyle GetFeet() const { return Feet_None; }
bool CanSnap() const { return true; }
wxPen GetStyle() const { return style; }
operator int() const { return position; }
};
VideoPositionMarkerProvider::VideoPositionMarkerProvider(agi::Context *c)
: vc(c->videoController)
, video_seek_slot(vc->AddSeekListener(&VideoPositionMarkerProvider::Update, this))
, enable_opt_changed_slot(OPT_SUB("Audio/Display/Draw/Video Position", &VideoPositionMarkerProvider::OptChanged, this))
{
OptChanged(*OPT_GET("Audio/Display/Draw/Video Position"));
}
VideoPositionMarkerProvider::~VideoPositionMarkerProvider() { }
void VideoPositionMarkerProvider::Update(int frame_number) {
marker->SetPosition(vc->TimeAtFrame(frame_number));
AnnounceMarkerMoved();
}
void VideoPositionMarkerProvider::OptChanged(agi::OptionValue const& opt) {
if (opt.GetBool()) {
video_seek_slot.Unblock();
marker.reset(new VideoPositionMarker);
marker->SetPosition(vc->GetFrameN());
}
else {
video_seek_slot.Block();
marker.reset();
}
}
void VideoPositionMarkerProvider::GetMarkers(const TimeRange &range, AudioMarkerVector &out) const {
if (marker && range.contains(*marker))
out.push_back(marker.get());
}
SecondsMarkerProvider::SecondsMarkerProvider()
: pen(new Pen("Colour/Audio Display/Seconds Line", 1, wxPENSTYLE_DOT))
, enabled(OPT_GET("Audio/Display/Draw/Seconds"))
, enabled_opt_changed(OPT_SUB("Audio/Display/Draw/Seconds", &SecondsMarkerProvider::EnabledOptChanged, this))
{
}
void SecondsMarkerProvider::EnabledOptChanged() {
AnnounceMarkerMoved();
}
void SecondsMarkerProvider::GetMarkers(TimeRange const& range, AudioMarkerVector &out) const {
if (!enabled->GetBool()) return;
if ((range.length() + 999) / 1000 > (int)markers.size())
markers.resize((range.length() + 999) / 1000, Marker(pen.get()));
size_t i = 0;
for (int time = ((range.begin() + 999) / 1000) * 1000; time < range.end(); time += 1000) {
markers[i].position = time;
out.push_back(&markers[i++]);
}
}
wxPen SecondsMarkerProvider::Marker::GetStyle() const {
return *style;
}