1/* 2 * Copyright (c) 1999-2000, Eric Moon. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions, and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 27 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 32// NullFilterAddOn.h 33// * PURPOSE 34// To test the IAudioOp framework, this add-on creates 35// 'do-nothing' filter nodes. 36// 37// * HISTORY 38// e.moon 8sep99 Begun 39 40#ifndef __NullFilterAddOn_H__ 41#define __NullFilterAddOn_H__ 42 43#include <MediaAddOn.h> 44 45// -------------------------------------------------------- // 46 47class NullFilterAddOn : 48 public BMediaAddOn { 49 typedef BMediaAddOn _inherited; 50 51public: // ctor/dtor 52// virtual ~NullFilterAddOn(); 53 explicit NullFilterAddOn(image_id image); 54 55public: // BMediaAddOn impl 56virtual status_t InitCheck( 57 const char** out_failure_text); 58virtual int32 CountFlavors(); 59virtual status_t GetFlavorAt( 60 int32 n, 61 const flavor_info ** out_info); 62virtual BMediaNode * InstantiateNodeFor( 63 const flavor_info * info, 64 BMessage * config, 65 status_t * out_error); 66virtual status_t GetConfigurationFor( 67 BMediaNode * your_node, 68 BMessage * into_message); 69 70virtual bool WantsAutoStart() { return false; } 71virtual status_t AutoStart( 72 int in_count, 73 BMediaNode ** out_node, 74 int32 * out_internal_id, 75 bool * out_has_more) { return B_OK; } 76}; 77 78#endif /*__NullFilterAddOn_H__*/