vlcglue.c

uclinux 下的vlc播放器源代码

    case VLC_VAR_LIST      :
        p_retval = PyString_FromString( "A VLC list ( not handled yet )" );
        break;
    case VLC_VAR_MUTEX :
        p_retval = PyString_FromString( "A mutex" );
        break;
    default:
        p_retval = Py_None;
    }

    Py_INCREF( p_retval );
    return p_retval;
}

static PyObject *
vlcObject_var_type( PyObject *self, PyObject *args )
{
    char *psz_name;
    PyObject *p_retval;
    int i_type;

    if( !PyArg_ParseTuple( args, "s", &psz_name ) )
        return NULL;

    i_type = var_Type( VLCSELF->p_object, psz_name );

    switch ( i_type )
    {
    case VLC_VAR_VOID   :
        p_retval = PyString_FromString( "Void" );
        break;
    case VLC_VAR_BOOL      :
        p_retval = PyString_FromString( "Boolean" );
        break;
    case VLC_VAR_INTEGER   :
        p_retval = PyString_FromString( "Integer" );
        break;
    case VLC_VAR_HOTKEY   :
        p_retval = PyString_FromString( "Hotkey" );
        break;
    case VLC_VAR_FILE      :
        p_retval = PyString_FromString( "File" );
        break;
    case VLC_VAR_STRING    :
        p_retval = PyString_FromString( "String" );
        break;
    case VLC_VAR_DIRECTORY :
        p_retval = PyString_FromString( "Directory" );
        break;
    case VLC_VAR_VARIABLE  :
        p_retval = PyString_FromString( "Variable" );
        break;
    case VLC_VAR_MODULE   :
        p_retval = PyString_FromString( "Module" );
        break;
    case VLC_VAR_FLOAT     :
        p_retval = PyString_FromString( "Float" );
        break;
    case VLC_VAR_TIME      :
        p_retval = PyString_FromString( "Time" );
        break;
    case VLC_VAR_ADDRESS   :
        p_retval = PyString_FromString( "Address" );
        break;
    case VLC_VAR_LIST      :
        p_retval = PyString_FromString( "List" );
        break;
    case VLC_VAR_MUTEX :
        p_retval = PyString_FromString( "Mutex" );
        break;
    default:
        p_retval = PyString_FromString( "Unknown" );
    }
    return p_retval;
}

/* Do a var_Set call on the object. Parameter: the variable name. */
static PyObject *
vlcObject_var_set( PyObject *self, PyObject *args )
{
    vlc_value_t value;
    char *psz_name;
    PyObject *py_value;
    int i_type;
    vlc_object_t *p_obj;

    if( !PyArg_ParseTuple( args, "sO", &psz_name, &py_value ) )
        return NULL;

    p_obj = VLCSELF->p_object;
    i_type = var_Type( p_obj, psz_name );

    switch ( i_type )
    {
    case VLC_VAR_VOID   :
        break;
    case VLC_VAR_BOOL      :
        value.b_bool = PyInt_AsLong( py_value );
        break;
    case VLC_VAR_INTEGER   :
    case VLC_VAR_HOTKEY   :
        value.i_int = PyInt_AsLong( py_value );
        break;
    case VLC_VAR_FILE      :
    case VLC_VAR_STRING    :
    case VLC_VAR_DIRECTORY :
    case VLC_VAR_VARIABLE  :
        value.psz_string = strdup( PyString_AsString( py_value ) );
        break;
    case VLC_VAR_MODULE   :
        /* FIXME: we should check the PyObject type and get its p_object */
        value.p_object = ( ( vlcObject* )p_obj )->p_object;
        break;
    case VLC_VAR_FLOAT     :
        value.f_float = PyFloat_AsDouble( py_value );
        break;
    case VLC_VAR_TIME      :
        value.i_time = PyLong_AsLongLong( py_value );
        break;
    case VLC_VAR_ADDRESS   :
        value.p_address = ( char* )PyLong_AsVoidPtr( py_value );
        break;
    case VLC_VAR_LIST      :
        /* FIXME */
        value.p_list = NULL;
        break;
    case VLC_VAR_MUTEX :
        break;
    }

    var_Set( p_obj, psz_name, value );

    Py_INCREF( Py_None );
    return Py_None;
}

static PyObject *
vlcObject_var_list( PyObject *self, PyObject *args )
{
    PyObject *p_retval;
    int i_size;
    int i_index;

    i_size = VLCSELF->p_object->i_vars;
    p_retval = PyTuple_New( i_size );

    for ( i_index = 0 ; i_index < i_size ; i_index++ )
    {
        PyTuple_SetItem( p_retval, i_index,
                         Py_BuildValue( "s", VLCSELF->p_object->p_vars[i_index].psz_name ) );
    }

    return p_retval;
}

/* Do a config_Get call on the object. Parameter: the variable name. */
static PyObject *
vlcObject_config_get( PyObject *self, PyObject *args )
{
    PyObject *p_retval;
    vlc_value_t value;
    char *psz_name;
    module_config_t *p_config;

    if( !PyArg_ParseTuple( args, "s", &psz_name ) )
        return NULL;

    p_config = config_FindConfig( VLCSELF->p_object, psz_name );

    if( !p_config )
    {
        PyErr_SetString( PyExc_StandardError,
                         "Error: config variable does not exist.\n" );
        return NULL;
    }

    switch ( p_config->i_type )
    {
    case CONFIG_ITEM_BOOL      :
        p_retval = PyBool_FromLong( p_config->i_value );
        break;
    case CONFIG_ITEM_INTEGER   :
        p_retval = PyInt_FromLong( ( long )p_config->i_value );
        break;
    case CONFIG_ITEM_KEY   :
        p_retval = PyString_FromFormat( "A hotkey variable ( %d )", p_config->i_value );
        break;
    case CONFIG_ITEM_FILE      :
    case CONFIG_ITEM_STRING    :
    case CONFIG_ITEM_DIRECTORY :
    case CONFIG_ITEM_MODULE    :
        vlc_mutex_lock( p_config->p_lock );
        if( p_config->psz_value )
            p_retval = PyString_FromString( p_config->psz_value );
        else
            p_retval = PyString_FromString( "" );
        vlc_mutex_unlock( p_config->p_lock );
        break;
        p_retval = ( PyObject* )PyObject_New( vlcObject, &vlcObject_Type );
        ( ( vlcObject* )p_retval )->p_object = value.p_object;
        break;
    case CONFIG_ITEM_FLOAT     :
        p_retval = PyFloat_FromDouble( ( double )p_config->f_value );
        break;
    default:
        p_retval = Py_None;
        Py_INCREF( p_retval );
    }

    return p_retval;
}

/* Do a config_put* call on the object. Parameter: the variable name. */
static PyObject *
vlcObject_config_set( PyObject *self, PyObject *args )
{
    char *psz_name;
    PyObject *py_value;
    vlc_object_t *p_obj;
    module_config_t *p_config;


    if( !PyArg_ParseTuple( args, "sO", &psz_name, &py_value ) )
        return NULL;

    p_obj = VLCSELF->p_object;
    p_config = config_FindConfig( p_obj, psz_name );
    /* sanity checks */
    if( !p_config )
    {
        PyErr_SetString( PyExc_StandardError,
                         "Error: option does not exist.\n" );
        return NULL;
    }

    switch ( p_config->i_type )
    {
    case CONFIG_ITEM_BOOL      :
    case CONFIG_ITEM_INTEGER   :
    case CONFIG_ITEM_KEY       :
        config_PutInt( p_obj, psz_name, PyInt_AsLong( py_value ) );
        break;
    case CONFIG_ITEM_FILE      :
    case CONFIG_ITEM_STRING    :
    case CONFIG_ITEM_DIRECTORY :
    case CONFIG_ITEM_MODULE   :
        config_PutPsz( p_obj, psz_name, PyString_AsString( py_value ) );
        break;
    case CONFIG_ITEM_FLOAT     :
        config_PutFloat( p_obj, psz_name, PyFloat_AsDouble( py_value ) );
        break;
    }
    Py_INCREF( Py_None );
    return Py_None;
}

static PyObject *
vlcObject_children( PyObject *self, PyObject *args )
{
    PyObject *p_retval;
    int i_size;
    int i_index;

    i_size = VLCSELF->p_object->i_children;
    p_retval = PyTuple_New( i_size );

    for ( i_index = 0 ; i_index < i_size ; i_index++ )
    {
        PyTuple_SetItem( p_retval, i_index,
                         Py_BuildValue( "i",
                                        VLCSELF->p_object->pp_children[i_index]->i_object_id ) );
    }

    return p_retval;
}


/* Method table */
static PyMethodDef vlcObject_methods[] =
{
    { "get", vlcObject_var_get, METH_VARARGS,
      "get( str ) -> value   Get a variable value."},
    { "set", vlcObject_var_set, METH_VARARGS,
      "set( str, value )     Set a variable value" },
    { "config_get", vlcObject_config_get, METH_VARARGS,
      "config_get( str ) -> value   Get a configuration option." },
    { "config_set", vlcObject_config_set, METH_VARARGS,
      "config_set( str, value )     Set a configuration option" },
    { "type", vlcObject_var_type, METH_VARARGS,
      "type( str ) -> str     Get a variable type" },
    { "list", vlcObject_var_list, METH_NOARGS,
      "list( )             List the available variables" },
    { "children", vlcObject_children, METH_NOARGS,
      "children( )             List the children ids" },
    { "find_object", vlcObject_find_object, METH_VARARGS,
      "find_object( str ) -> Object     Find the object of a given type.\n\nAvailable types are : aout, decoder, input, httpd, intf, playlist, root, vlc, vout"},
    { "find_id", vlcObject_find_id, METH_VARARGS,
      "find_id( int ) -> Object      Find an object by id" },
    { "info", vlcObject_info, METH_NOARGS,
       "info( ) -> dict    Return information about the object" },
    { "release", vlcObject_release, METH_NOARGS,
      "release( ) ->     Release the VLC Object" },
    { NULL, NULL, 0, NULL },
};

static PyTypeObject vlcObject_Type =
{
    PyObject_HEAD_INIT( NULL )
    0,                         /*ob_size*/
    "vlc.Object",       /*tp_name*/
    sizeof( vlcObject_Type ), /*tp_basicsize*/
    0,                         /*tp_itemsize*/
    ( destructor )vlcObject_dealloc,      /*tp_dealloc*/
    0,                         /*tp_print*/
    0,                         /*tp_getattr*/
    0,                         /*tp_setattr*/
    0,                         /*tp_compare*/
    0,                         /*tp_repr*/
    0,                         /*tp_as_number*/
    0,                         /*tp_as_sequence*/
    0,                         /*tp_as_mapping*/
    0,                         /*tp_hash */
    0,                         /*tp_call*/
    0,                         /*tp_str*/
    0,                         /*tp_getattro*/
    0,                         /*tp_setattro*/
    0,                         /*tp_as_buffer*/
    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
    "Expose VLC object infrastructure.",  /* tp_doc */
    0,                     /* tp_traverse */
    0,                     /* tp_clear */
    0,                     /* tp_richcompare */
    0,                     /* tp_weaklistoffset */
    0,                     /* tp_iter */
    0,                     /* tp_iternext */
    vlcObject_methods,             /* tp_methods */
    0,             /* tp_members */
    0,                         /* tp_getset */
    0,                         /* tp_base */
    0,                         /* tp_dict */
    0,                         /* tp_descr_get */
    0,                         /* tp_descr_set */
    0,                         /* tp_dictoffset */
    0,                         /* tp_init */
    0,                         /* tp_alloc */
    vlcObject_new,          /* tp_new */
};

/*****************************************************************************
 * VLC MediaControl object implementation
 *****************************************************************************/

static PyObject *
MediaControl_new( PyTypeObject *type, PyObject *args, PyObject *kwds )
{
    MediaControl *self;
    mediacontrol_Exception *exception = NULL;
    PyObject* py_list = NULL;
    char** ppsz_args = NULL;

    self = PyObject_New( MediaControl, &MediaControl_Type );

    if( PyArg_ParseTuple( args, "O", &py_list ) )
    {
        int i_size;
        int i_index;

        Py_INCREF( py_list );
        if( ! PySequence_Check( py_list ) )
        {
            PyErr_SetString( PyExc_TypeError, "Parameter must be a sequence." );
            return NULL;
        }
        i_size = PySequence_Size( py_list );
        ppsz_args = malloc( ( i_size + 1 ) * sizeof( char * ) );
        if( ! ppsz_args )
        {
            PyErr_SetString( PyExc_MemoryError, "Out of memory" );
            return NULL;
        }

        for ( i_index = 0; i_index < i_size; i_index++ )
        {