npolibvlc.cpp

uclinux 下的vlc播放器源代码

RuntimeNPObject::InvokeResult LibvlcMessageIteratorNPObject::getProperty(int index, NPVariant &result)
{
    /* is plugin still running */
    if( _instance->pdata )
    {
        VlcPlugin* p_plugin = reinterpret_cast<VlcPlugin*>(_instance->pdata);
        switch( index )
        {
            case ID_messageiterator_hasNext:
            {
                if( _p_iter && p_plugin->getLog() )
                {
                    libvlc_exception_t ex;
                    libvlc_exception_init(&ex);

                    BOOLEAN_TO_NPVARIANT(libvlc_log_iterator_has_next(_p_iter, &ex), result);
                    if( libvlc_exception_raised(&ex) )
                    {
                        NPN_SetException(this, libvlc_exception_get_message(&ex));
                        libvlc_exception_clear(&ex);
                        return INVOKERESULT_GENERIC_ERROR;
                    }
                }
                else
                {
                    BOOLEAN_TO_NPVARIANT(0, result);
                }
                return INVOKERESULT_NO_ERROR;
            }
            default:
                ;
        }
    }
    return INVOKERESULT_GENERIC_ERROR;
}

const NPUTF8 * const LibvlcMessageIteratorNPObject::methodNames[] =
{
    "next",
};

const int LibvlcMessageIteratorNPObject::methodCount = sizeof(LibvlcMessageIteratorNPObject::methodNames)/sizeof(NPUTF8 *);

enum LibvlcMessageIteratorNPObjectMethodIds
{
    ID_messageiterator_next,
};

RuntimeNPObject::InvokeResult LibvlcMessageIteratorNPObject::invoke(int index, const NPVariant *args, uint32_t argCount, NPVariant &result)
{
    /* is plugin still running */
    if( _instance->pdata )
    {
        VlcPlugin* p_plugin = reinterpret_cast<VlcPlugin*>(_instance->pdata);
        libvlc_exception_t ex;
        libvlc_exception_init(&ex);

        switch( index )
        {
            case ID_messageiterator_next:
                if( argCount == 0 )
                {
                    if( _p_iter && p_plugin->getLog() )
                    {
                        struct libvlc_log_message_t buffer;

                        buffer.sizeof_msg = sizeof(buffer);

                        libvlc_log_iterator_next(_p_iter, &buffer, &ex);
                        if( libvlc_exception_raised(&ex) )
                        {
                            NPN_SetException(this, libvlc_exception_get_message(&ex));
                            libvlc_exception_clear(&ex);
                            return INVOKERESULT_GENERIC_ERROR;
                        }
                        else
                        {
                            LibvlcMessageNPObject* message =
                                static_cast<LibvlcMessageNPObject*>(NPN_CreateObject(_instance, RuntimeNPClass<LibvlcMessageNPObject>::getClass()));
                            if( message )
                            {
                                message->setMessage(buffer);
                                OBJECT_TO_NPVARIANT(message, result);
                                return INVOKERESULT_NO_ERROR;
                            }
                            return INVOKERESULT_OUT_OF_MEMORY;
                        }
                    }
                    return INVOKERESULT_GENERIC_ERROR;
                }
                return INVOKERESULT_NO_SUCH_METHOD;
            default:
                ;
        }
    }
    return INVOKERESULT_GENERIC_ERROR;
}
 
/*
** implementation of libvlc message object
*/

const NPUTF8 * const LibvlcMessagesNPObject::propertyNames[] = 
{
    "count",
};

const int LibvlcMessagesNPObject::propertyCount = sizeof(LibvlcMessagesNPObject::propertyNames)/sizeof(NPUTF8 *);

enum LibvlcMessagesNPObjectPropertyIds
{
    ID_messages_count,
};

RuntimeNPObject::InvokeResult LibvlcMessagesNPObject::getProperty(int index, NPVariant &result)
{
    /* is plugin still running */
    if( _instance->pdata )
    {
        VlcPlugin* p_plugin = reinterpret_cast<VlcPlugin*>(_instance->pdata);
        switch( index )
        {
            case ID_messages_count:
            {
                libvlc_log_t *p_log = p_plugin->getLog();
                if( p_log )
                {
                    libvlc_exception_t ex;
                    libvlc_exception_init(&ex);

                    INT32_TO_NPVARIANT(libvlc_log_count(p_log, &ex), result);
                    if( libvlc_exception_raised(&ex) )
                    {
                        NPN_SetException(this, libvlc_exception_get_message(&ex));
                        libvlc_exception_clear(&ex);
                        return INVOKERESULT_GENERIC_ERROR;
                    }
                }
                else
                {
                    INT32_TO_NPVARIANT(0, result);
                }
                return INVOKERESULT_NO_ERROR;
            }
            default:
                ;
        }
    }
    return INVOKERESULT_GENERIC_ERROR;
}

const NPUTF8 * const LibvlcMessagesNPObject::methodNames[] =
{
    "clear",
    "iterator",
};

const int LibvlcMessagesNPObject::methodCount = sizeof(LibvlcMessagesNPObject::methodNames)/sizeof(NPUTF8 *);

enum LibvlcMessagesNPObjectMethodIds
{
    ID_messages_clear,
    ID_messages_iterator,
};

RuntimeNPObject::InvokeResult LibvlcMessagesNPObject::invoke(int index, const NPVariant *args, uint32_t argCount, NPVariant &result)
{
    /* is plugin still running */
    if( _instance->pdata )
    {
        VlcPlugin* p_plugin = reinterpret_cast<VlcPlugin*>(_instance->pdata);
        libvlc_exception_t ex;
        libvlc_exception_init(&ex);

        switch( index )
        {
            case ID_messages_clear:
                if( argCount == 0 )
                {
                    libvlc_log_t *p_log = p_plugin->getLog();
                    if( p_log )
                    {
                        libvlc_log_clear(p_log, &ex);
                        if( libvlc_exception_raised(&ex) )
                        {
                            NPN_SetException(this, libvlc_exception_get_message(&ex));
                            libvlc_exception_clear(&ex);
                            return INVOKERESULT_GENERIC_ERROR;
                        }
                    }
                    return INVOKERESULT_NO_ERROR;
                }
                return INVOKERESULT_NO_SUCH_METHOD;

            case ID_messages_iterator:
                if( argCount == 0 )
                {
                    LibvlcMessageIteratorNPObject* iter =
                        static_cast<LibvlcMessageIteratorNPObject*>(NPN_CreateObject(_instance, RuntimeNPClass<LibvlcMessageIteratorNPObject>::getClass()));
                    if( iter )
                    {
                        OBJECT_TO_NPVARIANT(iter, result);
                        return INVOKERESULT_NO_ERROR;
                    }
                    return INVOKERESULT_OUT_OF_MEMORY;
                }
                return INVOKERESULT_NO_SUCH_METHOD;

            default:
                ;
        }
    }
    return INVOKERESULT_GENERIC_ERROR;
}

 
/*
** implementation of libvlc message object
*/


LibvlcLogNPObject::~LibvlcLogNPObject()
{
    if( isValid() )
    {
        if( messagesObj ) NPN_ReleaseObject(messagesObj);
    }
};

const NPUTF8 * const LibvlcLogNPObject::propertyNames[] = 
{
    "messages",
    "verbosity",
};

const int LibvlcLogNPObject::propertyCount = sizeof(LibvlcLogNPObject::propertyNames)/sizeof(NPUTF8 *);

enum LibvlcLogNPObjectPropertyIds
{
    ID_log_messages,
    ID_log_verbosity,
};

RuntimeNPObject::InvokeResult LibvlcLogNPObject::getProperty(int index, NPVariant &result)
{
    /* is plugin still running */
    if( _instance->pdata )
    {
        VlcPlugin* p_plugin = reinterpret_cast<VlcPlugin*>(_instance->pdata);
        libvlc_exception_t ex;
        libvlc_exception_init(&ex);

        switch( index )
        {
            case ID_log_messages:
            {
                // create child object in lazyman fashion to avoid ownership problem with firefox
                if( ! messagesObj )
                    messagesObj = NPN_CreateObject(_instance, RuntimeNPClass<LibvlcMessagesNPObject>::getClass());
                OBJECT_TO_NPVARIANT(NPN_RetainObject(messagesObj), result);
                return INVOKERESULT_NO_ERROR;
            }
            case ID_log_verbosity:
            {
                if( p_plugin->getLog() )
                {
                    INT32_TO_NPVARIANT(libvlc_get_log_verbosity(p_plugin->getVLC(),
                                                                    &ex), result);
                    if( libvlc_exception_raised(&ex) )
                    {
                        NPN_SetException(this, libvlc_exception_get_message(&ex));
                        libvlc_exception_clear(&ex);
                        return INVOKERESULT_GENERIC_ERROR;
                    }
                }
                else
                {
                    /* log is not enabled, return -1 */
                    DOUBLE_TO_NPVARIANT(-1.0, result);
                }
                return INVOKERESULT_NO_ERROR;
            }
            default:
                ;
        }
    }
    return INVOKERESULT_GENERIC_ERROR;
}

RuntimeNPObject::InvokeResult LibvlcLogNPObject::setProperty(int index, const NPVariant &value)
{
    /* is plugin still running */
    if( _instance->pdata )
    {
        VlcPlugin* p_plugin = reinterpret_cast<VlcPlugin*>(_instance->pdata);
        libvlc_exception_t ex;
        libvlc_exception_init(&ex);

        switch( index )
        {
            case ID_log_verbosity:
                if( isNumberValue(value) )
                {
                    libvlc_instance_t* p_libvlc = p_plugin->getVLC();
                    libvlc_log_t *p_log = p_plugin->getLog();
                    int verbosity = numberValue(value);
                    if( verbosity >= 0 )
                    {
                        if( ! p_log )
                        {
                            p_log = libvlc_log_open(p_libvlc, &ex);
                            if( libvlc_exception_raised(&ex) )
                            {
                                NPN_SetException(this, libvlc_exception_get_message(&ex));
                                libvlc_exception_clear(&ex);
                                return INVOKERESULT_GENERIC_ERROR;
                            }
                            p_plugin->setLog(p_log);
                        }
                        libvlc_set_log_verbosity(p_libvlc, (unsigned)verbosity, &ex);
                        if( libvlc_exception_raised(&ex) )
                        {
                            NPN_SetException(this, libvlc_exception_get_message(&ex));
                            libvlc_exception_clear(&ex);
                            return INVOKERESULT_GENERIC_ERROR;
                        }
                    }
                    else if( p_log )
                    {
                        /* close log  when verbosity is set to -1 */
                        p_plugin->setLog(NULL);
                        libvlc_log_close(p_log, &ex);
                        if( libvlc_exception_raised(&ex) )
                        {
                            NPN_SetException(this, libvlc_exception_get_message(&ex));
                            libvlc_exception_clear(&ex);
                            return INVOKERESULT_GENERIC_ERROR;
                        }
                    }
                    return INVOKERESULT_NO_ERROR;
                }
                return INVOKERESULT_INVALID_VALUE;
            default:
                ;
        }
    }
    return INVOKERESULT_GENERIC_ERROR;
}

const NPUTF8 * const LibvlcLogNPObject::methodNames[] =
{
    /* no methods */
};

const int LibvlcLogNPObject::methodCount = sizeof(LibvlcLogNPObject::methodNames)/sizeof(NPUTF8 *);

/*
** implementation of libvlc playlist items object
*/

const NPUTF8 * const LibvlcPlaylistItemsNPObject::propertyNames[] = 
{
    "count",
};

const int LibvlcPlaylistItemsNPObject::propertyCount = sizeof(LibvlcPlaylistItemsNPObject::propertyNames)/sizeof(NPUTF8 *);

enum LibvlcPlaylistItemsNPObjectPropertyIds
{
    ID_playlistitems_count,
};

RuntimeNPObject::InvokeResult LibvlcPlaylistItemsNPObject::getProperty(int index, NPVariant &result)
{
    /* is plugin still running */
    if( _instance->pdata )