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OpenMW/extern/osg-ffmpeg-videoplayer/videoplayer.hpp
2022-04-22 18:27:17 +02:00

85 lines
2.5 KiB
C++

#ifndef VIDEOPLAYER_H
#define VIDEOPLAYER_H
#include <stdint.h>
#include <string>
#include <memory>
#include <iosfwd>
#include <osg/Texture2D>
namespace osg
{
class Texture2D;
}
namespace Video
{
struct VideoState;
class MovieAudioFactory;
/**
* @brief Plays a video on an osg texture.
*/
class VideoPlayer
{
public:
VideoPlayer();
~VideoPlayer();
/// @brief Set the MovieAudioFactory to use.
/// @par This class must be implemented by the user and is responsible for reading the decoded audio data.
/// @note If you do not set up a MovieAudioFactory, then audio streams will be ignored and the video will be played with no sound.
/// @note Takes ownership of the passed pointer.
void setAudioFactory (MovieAudioFactory* factory);
/// Return true if a video is currently playing and it has an audio stream.
bool hasAudioStream();
/// Play the given video. If a video is already playing, the old video is closed first.
/// @note The video will be unpaused by default. Use the pause() and play() methods to control pausing.
/// @param name A name for the video stream - only used for logging purposes.
void playVideo(std::unique_ptr<std::istream>&& inputstream, const std::string& name);
/// Get the current playback time position in the video, in seconds
double getCurrentTime();
/// Get the duration of the video in seconds
double getDuration();
/// Seek to the specified time position in the video
void seek(double time);
void play();
void pause();
bool isPaused();
/// This should be called every frame by the user to update the video texture.
/// @return Returns true if the video is still playing, false if we have reached the end of the video stream.
bool update();
/// Stop the currently playing video, if a video is playing.
void close();
/// Return the texture of the currently playing video, or a null pointer if no video is playing.
osg::ref_ptr<osg::Texture2D> getVideoTexture();
/// Return the width of the currently playing video, or 0 if no video is playing.
int getVideoWidth();
/// Return the height of the currently playing video, or 0 if no video is playing.
int getVideoHeight();
private:
VideoState* mState;
std::unique_ptr<MovieAudioFactory> mAudioFactory;
};
}
#endif