mediarecorderplugininterface.h

Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3.10平台上编译为嵌入式图形界面操作系统。

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#ifndef MEDIA_RECORDER_PLUGIN_INTERFACE_H
#define MEDIA_RECORDER_PLUGIN_INTERFACE_H

#include <qtopia/qcom.h>

#ifndef QT_NO_COMPONENT
// {c0093632-b44c-4cf7-a279-d82fe8a8890d}
# ifndef IID_MediaRecorderPlugin
#  define IID_MediaRecorderPlugin QUuid( 0xc0093632, 0xb44c, 0x4cf7, 0xa2, 0x79, 0xd8, 0x2f, 0xe8, 0xa8, 0x89, 0x0d )
# endif
#endif

class MediaRecorderEncoder {

public:
    virtual ~MediaRecorderEncoder() { }

    // About Plugin 
    virtual int pluginNumFormats() const = 0;
    virtual QString pluginFormatName( int format ) const = 0;
    virtual QString pluginFormatTag( int format ) const = 0;
    virtual QString pluginComment() const = 0;
    virtual double pluginVersion() const = 0;
    virtual QString pluginMimeType() const = 0;

    // I/O device management
    virtual bool begin( QIODevice *device, const QString& formatTag ) = 0;
    virtual bool end() = 0;
    virtual bool isActive() const = 0;

    // Audio record functionality
    virtual bool setAudioChannels( int channels ) = 0;
    virtual bool setAudioFrequency( int frequency ) = 0;
    virtual bool writeAudioSamples( const short *samples, long numSamples ) = 0;

    // TODO - video recording API's

    // Add comments and other meta information
    virtual bool addComment( const QString& tag, const QString& contents ) = 0;

    // Space estimation.
    virtual long estimateAudioBps( int frequency, int channels, const QString& formatTag ) = 0;

    // Capabilities
    virtual bool supportsAudio() const = 0;
    virtual bool supportsVideo() const = 0;
    virtual bool supportsComments() const = 0;
    virtual bool requiresDirectAccess() const = 0;
};


struct MediaRecorderPluginInterface : public QUnknownInterface
{
    virtual MediaRecorderEncoder *encoder() = 0;
};


#endif