forked from mia/Aegisub
9c7119fdc2
Remove it from the script info section and put it in its own section that isn't tracked by undo and make it not stringly typed. Removes the need for the gross hack where changes are slipped in just before saving to circumvent the undo system, cuts down on the uses of string literals to identify fields, and probably improves performance a little.
165 lines
5.3 KiB
C++
165 lines
5.3 KiB
C++
// Copyright (c) 2005-2007, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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#include <libaegisub/signal.h>
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#include <libaegisub/vfr.h>
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#include <chrono>
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#include <memory>
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#include <set>
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#include <wx/timer.h>
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class AssDialogue;
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class AsyncVideoProvider;
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struct SubtitlesProviderErrorEvent;
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struct VideoFrame;
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struct VideoProviderErrorEvent;
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namespace agi {
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struct Context;
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class OptionValue;
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}
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enum class AspectRatio {
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Default = 0,
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Fullscreen,
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Widescreen,
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Cinematic,
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Custom
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};
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/// Manage stuff related to video playback
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class VideoController final : public wxEvtHandler {
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/// Current frame number changed (new frame number)
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agi::signal::Signal<int> Seek;
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/// Aspect ratio was changed (type, value)
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agi::signal::Signal<AspectRatio, double> ARChange;
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agi::Context *context;
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/// The video provider owned by the threaded frame source, or nullptr if no
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/// video is open
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AsyncVideoProvider *provider = nullptr;
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/// Last seen script color matrix
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std::string color_matrix;
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/// Playback timer used to periodically check if we should go to the next
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/// frame while playing video
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wxTimer playback;
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/// Time when playback was last started
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std::chrono::steady_clock::time_point playback_start_time;
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/// The start time of the first frame of the current playback; undefined if
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/// video is not currently playing
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int start_ms = 0;
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/// The last frame to play if video is currently playing
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int end_frame = 0;
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/// The frame number which was last requested from the video provider,
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/// which may not be the same thing as the currently displayed frame
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int frame_n = 0;
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/// The picture aspect ratio of the video if the aspect ratio has been
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/// overridden by the user
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double ar_value = 1.;
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/// The current AR type
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AspectRatio ar_type = AspectRatio::Default;
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/// Cached option for audio playing when frame stepping
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const agi::OptionValue* playAudioOnStep;
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std::vector<agi::signal::Connection> connections;
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void OnPlayTimer(wxTimerEvent &event);
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void OnVideoError(VideoProviderErrorEvent const& err);
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void OnSubtitlesError(SubtitlesProviderErrorEvent const& err);
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void OnSubtitlesCommit(int type, std::set<const AssDialogue *> const& changed);
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void OnNewVideoProvider(AsyncVideoProvider *provider);
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void OnActiveLineChanged(AssDialogue *line);
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void RequestFrame();
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public:
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VideoController(agi::Context *context);
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/// Is the video currently playing?
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bool IsPlaying() const { return playback.IsRunning(); }
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/// Get the current frame number
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int GetFrameN() const { return frame_n; }
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/// Get the actual aspect ratio from a predefined AR type
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double GetARFromType(AspectRatio type) const;
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/// Override the aspect ratio of the currently loaded video
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void SetAspectRatio(double value);
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/// Override the aspect ratio of the currently loaded video
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/// @param type Predefined type to set the AR to. Must not be Custom.
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void SetAspectRatio(AspectRatio type);
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/// Get the current AR type
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AspectRatio GetAspectRatioType() const { return ar_type; }
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/// Get the current aspect ratio of the video
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double GetAspectRatioValue() const { return ar_value; }
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/// @brief Jump to the beginning of a frame
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/// @param n Frame number to jump to
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void JumpToFrame(int n);
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/// @brief Jump to a time
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/// @param ms Time to jump to in milliseconds
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/// @param end Type of time
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void JumpToTime(int ms, agi::vfr::Time end = agi::vfr::START);
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/// Starting playing the video
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void Play();
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/// Play the next frame then stop
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void NextFrame();
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/// Play the previous frame then stop
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void PrevFrame();
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/// Seek to the beginning of the current line, then play to the end of it
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void PlayLine();
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/// Stop playing
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void Stop();
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DEFINE_SIGNAL_ADDERS(Seek, AddSeekListener)
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DEFINE_SIGNAL_ADDERS(ARChange, AddARChangeListener)
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int TimeAtFrame(int frame, agi::vfr::Time type = agi::vfr::EXACT) const;
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int FrameAtTime(int time, agi::vfr::Time type = agi::vfr::EXACT) const;
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};
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