📄 mediaclasses.h
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/**************************************************************************************
* *
* *
**************************************************************************************/
#ifndef _MEDIA_CLASSES_H
#define _MEDIA_CLASSES_H
#include <windows.h>
/*
* 基本类型
*/
#include "MediaBuffer.h"
#include "Error.h"
/*
* 媒体类型
*/
typedef enum {
MEDIA_TYPE_INPUT,
MEDIA_TYPE_DECAPS,
MEDIA_TYPE_VIDEO_DECODER,
MEDIA_TYPE_AUDIO_DECODER,
MEDIA_TYPE_VIDEO_BUFFER,
MEDIA_TYPE_VIDEO_RENDERER,
MEDIA_TYPE_AUDIO_RENDERER,
MEDIA_TYPE_SUBTITLER,
} media_type_t;
/*
*性能类型
*/
#define MEDIA_CAPS_CAN_CONFIGURE 0x00000001
#define MEDIA_CAPS_BUFFERIZE 0x00000002
/*
* 输入媒体类型
*/
/*
* 文件格式
*/
typedef enum {
INPUT_OPEN_ASCII,
INPUT_OPEN_BINARY
} media_input_mode_t;
/*
* 搜索
*/
typedef enum {
INPUT_SEEK_SET,
INPUT_SEEK_CUR,
INPUT_SEEK_END
} media_input_seek_t;
/*
* 视频格式
*/
typedef enum {
VIDEO_MODE_NONE,
VIDEO_MODE_RGB8,
VIDEO_MODE_RGB16,
VIDEO_MODE_RGB24,
VIDEO_MODE_RGB32,
VIDEO_MODE_YUV9,
VIDEO_MODE_YUV12,
VIDEO_MODE_YUY2,
VIDEO_MODE_UYVY,
} media_video_mode_t;
/*
* 用于描述播放器的不同媒体节点，缓冲器，流的虚拟类
*/
class MediaItem {
private:
media_type_t type;
char *name;
public:
/*
* 获取基本信息的方法
*/
virtual media_type_t GetType() = 0;
virtual char *GetName() = 0;
/*
* 连接媒体项
*/
virtual MP_RESULT Connect(MediaItem *item) = 0;
virtual MP_RESULT ReleaseConnections() = 0;
/*
* 获得CAPS和配置项的方法
*/
virtual DWORD GetCaps() = 0;
virtual MP_RESULT Configure(HINSTANCE hInstance, HWND hwnd) = 0;
};
/*
* MediaItemInput:
* ---------------
* ——输入媒体项
*
*
*/
class MediaItemInput : public MediaItem {
public:
virtual MP_RESULT Open(char *url, media_input_mode_t mode) = 0;
virtual long GetSize() = 0;
virtual long GetBufferSize() = 0;
virtual long GetBufferPosition() = 0;
virtual long GetBufferingSize() = 0;
virtual unsigned int Read(MediaBuffer *mb, unsigned int size) = 0;
virtual unsigned int Seek(int size, media_input_seek_t method) = 0;
virtual unsigned int GetLine(MediaBuffer *mb) = 0;
virtual BOOL EndOfFile() = 0;
virtual MP_RESULT Close() = 0;
};
/*
* MediaItemDecaps:
* ----------------
*
* ——Decaps流
*
*/
class MediaItemDecaps : public MediaItem {
public:
virtual unsigned int GetNumberOfVideoStreams() = 0;
virtual unsigned int GetNumberOfAudioStreams() = 0;
virtual unsigned int GetVideoWidth(unsigned int StreamId) = 0;
virtual unsigned int GetVideoHeight(unsigned int StreamId) = 0;
virtual double GetVideoFrameRate(unsigned int StreamId) = 0;
virtual char *GetVideoCompression(unsigned int StreamId) = 0;
virtual BITMAPINFOHEADER *GetVideoHeader(unsigned int StreamId) = 0;
virtual unsigned long GetCurrentVideoFrame(unsigned int StreamId) = 0;
virtual unsigned long GetTotalVideoFrames(unsigned int StreamId) = 0;
virtual unsigned long GetTotalVideoTime(unsigned int StreamId) = 0;
virtual unsigned int GetAudioBits(unsigned int StreamId) = 0;
virtual unsigned int GetAudioChannels(unsigned int StreamId) = 0;
virtual unsigned int GetAudioFrequency(unsigned int StreamId) = 0;
virtual WAVEFORMATEX *GetAudioFormat(unsigned int StreamId) = 0;
virtual unsigned int GetNextVideoFrameSize(unsigned int StreamId) = 0;
virtual unsigned int ReadVideoFrame(unsigned int StreamId, MediaBuffer *mb) = 0;
virtual unsigned int ReadAudioData(unsigned int StreamId, char *buffer, unsigned int bytes) = 0;
virtual MP_RESULT UpdateForSize() = 0;
virtual MP_RESULT SeekAudio(unsigned int StreamId, long bytes) = 0;
virtual MP_RESULT SeekVideo(unsigned int StreamId, long frame) = 0;
virtual MP_RESULT ReSeekAudio(unsigned int StreamId) = 0;
virtual MP_RESULT Seek(unsigned int videoStreamId, unsigned int audioStreamId, int percent) = 0;
virtual MP_RESULT Rewind(unsigned int videoStreamId, unsigned int audioStreamId) = 0;
virtual MP_RESULT SeekNextKeyFrame(unsigned int StreamId) = 0;
virtual MP_RESULT SeekPreviousKeyFrame(unsigned int StreamId) = 0;
};
/*
* MediaItemVideoDecoder:
* --------------------
*
* ——从流中解码视频
*
*
*/
class MediaItemVideoDecoder : public MediaItem {
public:
virtual unsigned int GetFrameSize() = 0;
virtual media_video_mode_t GetVideoMode() = 0;
virtual BOOL GetInvertFlag() = 0;
virtual MP_RESULT SetVideoMode(media_video_mode_t mode) = 0;
virtual MP_RESULT SetQuality(DWORD quality) = 0;
virtual DWORD GetQuality() = 0;
virtual MP_RESULT Decompress(MediaBuffer *mb_out, unsigned int stride) = 0;
virtual MP_RESULT Drop(MediaBuffer *mb_out, unsigned int stride) = 0;
};
/*
* MediaItemVideoBuffer:
* --------------------
*
* ——缓冲解码的图像
*
*/
class MediaItemVideoBuffer : public MediaItem {
public:
virtual MP_RESULT StartBuffering(unsigned int stride) = 0;
virtual MP_RESULT StopBuffering() = 0;
virtual MediaBuffer *GetOneFrame() = 0;
virtual MediaBuffer *GetLastFrame() = 0;
virtual MP_RESULT DropOneFrame() = 0;
};
/*
* MediaItemVideoRenderer:
* -----------------------
*
* ——补偿在屏幕上的视频
*
*/
class MediaItemVideoRenderer : public MediaItem {
public:
virtual MP_RESULT Init(HWND hwnd, unsigned int width, unsigned int height) = 0;
virtual MP_RESULT InitFullscreen(HWND hwnd, unsigned int width, unsigned int height) = 0;
virtual media_video_mode_t GetVideoMode() = 0;
virtual RECT *GetFullscreenRects() = 0;
virtual MP_RESULT Draw(MediaBuffer *buffer, RECT *rect, int frameNumber, int invertFlag) = 0;
virtual MP_RESULT DrawFullscreen(MediaBuffer *buffer, int frameNumber, int invertFlag, int desktopMode) = 0;
virtual MP_RESULT Stop() = 0;
virtual MP_RESULT Close() = 0;
};
/*
*
*
* 字幕变换的类型
*/
typedef struct _subtitles_t {
char *subtitlesText[4];
DWORD nbSubtitles;
} subtitles_t;
/*
* MediaItemSubtitler
* ------------------
*
* ——读字幕
*
*/
class MediaItemSubtitler : public MediaItem {
public:
virtual MP_RESULT Open(char *lpFilename) = 0;
virtual subtitles_t *GetSubtitles(DWORD frameNumber) = 0;
virtual MP_RESULT Close() = 0;
};
/*
* MediaItemAudioDecoder:
* ----------------------
*
* ——将音频解码到缓冲器
*
*/
class MediaItemAudioDecoder : public MediaItem {
public:
virtual WAVEFORMATEX *GetAudioFormat() = 0;
virtual MP_RESULT EmptyAudioBuffer() = 0;
virtual unsigned int Decompress(void *buffer, unsigned int size) = 0;
};
/*
* MediaItemAudioRenderer:
* -----------------------
*
* ——补偿系统声卡音频（Renderer audio to system soundcard）
*
*/
/*
* 音频回调
*/
typedef unsigned int (*MediaAudioCallback)(void *lpData, void *buffer, unsigned int size);
class MediaItemAudioRenderer : public MediaItem {
public:
virtual MP_RESULT Open(HWND hwnd, WAVEFORMATEX *inFormat) = 0;
virtual MP_RESULT SetCallback(void *lpData, MediaAudioCallback callback) = 0;
virtual MP_RESULT SetVolume(unsigned int volume) = 0;
virtual unsigned long GetAudioTime() = 0;
virtual MP_RESULT Bufferize() = 0;
virtual MP_RESULT Start() = 0;
virtual MP_RESULT Pause() = 0;
virtual MP_RESULT Stop() = 0;
virtual MP_RESULT Close() = 0;
};
#endif
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