Add initial video playback support for Ogg Theora videos (resolves issue #66.)

The basic APIs are: video = love.graphics.newVideo("myvideo.ogv") love.graphics.draw(video, ...) -- Video objects are Drawables. video:play(), video:pause() video:getDuration(), video:tell(), video:rewind(), video:seek(seconds) video:getSource() video:getWidth(), video:getHeight(), video:setFilter(min, mag) More advanced APIs include video:setSource(source), video:getStream(), and videostream:setSync. To use a custom pixel shader when drawing a Video, call the new TexelVideo(texcoords) function instead of Texel(texture, texcoords) in order to get the pixel colors of a video frame.
2026-08-16 00:02:12 +02:00 · 2015-12-08 22:41:19 -04:00
parent a1dab12117
commit 22f2175bec
41 changed files with 2241 additions and 20 deletions
@@ -0,0 +1,131 @@
+/**
+ * Copyright (c) 2006-2015 LOVE Development Team
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ **/
+
+#ifndef LOVE_VIDEO_VIDEOSTREAM_H
+#define LOVE_VIDEO_VIDEOSTREAM_H
+
+// LOVE
+#include "common/Stream.h"
+#include "audio/Source.h"
+#include "thread/threads.h"
+
+namespace love
+{
+namespace video
+{
+
+class VideoStream : public Stream
+{
+public:
+	virtual ~VideoStream() {}
+
+	virtual int getWidth() const = 0;
+	virtual int getHeight() const = 0;
+	virtual const std::string &getFilename() const = 0;
+
+	// Playback api
+	virtual void play();
+	virtual void pause();
+	virtual void seek(double offset);
+	virtual double tell();
+	virtual bool isPlaying();
+
+	class FrameSync;
+	class DeltaSync;
+
+	// The stream now owns the sync, do not reuse or free
+	virtual void setSync(FrameSync *frameSync);
+	virtual FrameSync *getSync() const;
+
+	// Data structures
+	struct Frame
+	{
+		Frame();
+		~Frame();
+
+		int yw, yh;
+		unsigned char *yplane;
+
+		int cw, ch;
+		unsigned char *cbplane;
+		unsigned char *crplane;
+	};
+
+	class FrameSync : public Object
+	{
+	public:
+		virtual double getPosition() const = 0;
+		virtual void update(double /*dt*/) {}
+		virtual ~FrameSync() {}
+
+		void copyState(const FrameSync *other);
+
+		// Playback api
+		virtual void play() = 0;
+		virtual void pause() = 0;
+		virtual void seek(double offset) = 0;
+		virtual double tell() const;
+		virtual bool isPlaying() const = 0;
+	};
+
+	class DeltaSync : public FrameSync
+	{
+	public:
+		DeltaSync();
+		~DeltaSync();
+
+		virtual double getPosition() const override;
+		virtual void update(double dt) override;
+
+		virtual void play() override;
+		virtual void pause() override;
+		virtual void seek(double time) override;
+		virtual bool isPlaying() const override;
+
+	private:
+		bool playing;
+		double position;
+		double speed;
+		love::thread::MutexRef mutex;
+	};
+
+	class SourceSync : public FrameSync
+	{
+	public:
+		SourceSync(love::audio::Source *source);
+
+		virtual double getPosition() const override;
+		virtual void play() override;
+		virtual void pause() override;
+		virtual void seek(double time) override;
+		virtual bool isPlaying() const override;
+
+	private:
+		StrongRef<love::audio::Source> source;
+	};
+
+protected:
+	StrongRef<FrameSync> frameSync;
+};
+
+} // video
+} // love
+
+#endif // LOVE_VIDEO_VIDEOSTREAM_H