75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
// Copyright (c) 2011, Thomas Goyne <plorkyeran@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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// Aegisub Project http://www.aegisub.org/
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//
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// $Id$
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/// @file audio_marker_provider_keyframes.h
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/// @see audio_marker_provider_keyframes.cpp
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/// @ingroup audio_ui
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///
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#include "audio_controller.h"
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#include <libaegisub/scoped_ptr.h>
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#include <libaegisub/signal.h>
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#ifndef AGI_PRE
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#include <vector>
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#endif
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class AudioMarkerKeyframe;
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class Pen;
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class VideoContext;
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namespace agi {
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class OptionValue;
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struct Context;
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}
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/// Marker provider for video keyframes
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class AudioMarkerProviderKeyframes : public AudioMarkerProvider {
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/// Audio controller for time -> sample conversions
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AudioController *controller;
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/// Video controller to get keyframes from
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VideoContext *vc;
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agi::signal::Connection keyframe_slot;
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agi::signal::Connection audio_open_slot;
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agi::signal::Connection timecode_slot;
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agi::signal::Connection enabled_slot;
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const agi::OptionValue *enabled_opt;
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/// Current set of markers for the keyframes
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std::vector<AudioMarkerKeyframe> markers;
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/// Pen used for all keyframe markers, stored here for performance reasons
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agi::scoped_ptr<Pen> style;
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/// Regenerate the list of markers
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void Update();
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public:
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/// Constructor
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/// @param c Project context; must have audio and video controllers initialized
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/// @param opt_name Name of the option to use to decide whether or not this provider is enabled
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AudioMarkerProviderKeyframes(agi::Context *c, const char *opt_name);
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/// Explicit destructor needed due to members with incomplete types
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~AudioMarkerProviderKeyframes();
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/// Get all keyframe markers within a range
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/// @param range Range of samples to get markers for
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/// @param[out] out Vector to fill with markers in the range
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void GetMarkers(SampleRange const& range, AudioMarkerVector &out) const;
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};
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