/*
 * Copyright (c) 1999-2000, Eric Moon.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions, and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


// NullFilterAddOn.cpp

#include "NullFilterAddOn.h"

#include "AudioFilterNode.h"
#include "NullAudioOp.h"

#include <Entry.h>
#include <Debug.h>
#include <Catalog.h>
#include <cstring>
#include <cstdlib>

#undef B_TRANSLATION_CONTEXT
#define B_TRANSLATION_CONTEXT "CortexAddOnsNullFilter"

// -------------------------------------------------------- //
// _NullFilterNode
// -------------------------------------------------------- //

class _NullFilterNode :
        public  AudioFilterNode {
        typedef AudioFilterNode _inherited;

public:
        virtual ~_NullFilterNode() {}
        _NullFilterNode(
                const char*                                                                     name,
                IAudioOpFactory*                                                opFactory,
                BMediaAddOn*                                                            addOn=0) :
                BMediaNode(name),
                AudioFilterNode(name, opFactory, addOn) {}

        // be rather permissive about formats
        status_t getRequiredFormat(
                media_format&                                                           ioFormat) {
                
                if(ioFormat.type != B_MEDIA_RAW_AUDIO)
                        return B_MEDIA_BAD_FORMAT;
                ioFormat.u.raw_audio = media_raw_audio_format::wildcard;
                ioFormat.u.raw_audio.channel_count = 1;
                
                return B_OK;
        }
        
        status_t getPreferredFormat(
                media_format&                                                           ioFormat) {
                status_t err = _inherited::getPreferredFormat(ioFormat);
                if(err < B_OK)
                        return err;
                        
                ioFormat.u.raw_audio.channel_count = 1;
                return B_OK;
        }
};


// -------------------------------------------------------- //
// instantiation function
// -------------------------------------------------------- //

extern "C" _EXPORT BMediaAddOn* make_media_addon(image_id image) {
        return new NullFilterAddOn(image);
}

// -------------------------------------------------------- //
// ctor/dtor
// -------------------------------------------------------- //

//NullFilterAddOn::~NullFilterAddOn() {}
NullFilterAddOn::NullFilterAddOn(image_id id) :
        BMediaAddOn(id) {}

// -------------------------------------------------------- //
// BMediaAddOn impl
// -------------------------------------------------------- //

status_t NullFilterAddOn::InitCheck(
        const char** out_failure_text) {
        return B_OK;
}
        
int32 NullFilterAddOn::CountFlavors() {
        return 1;
}

status_t NullFilterAddOn::GetFlavorAt(
        int32 n,
        const flavor_info** out_info) {
        if(n)
                return B_ERROR;
        
        flavor_info* pInfo = new flavor_info;
        pInfo->internal_id = n;
        pInfo->name = B_TRANSLATE("NullFilter");
        pInfo->info =
                B_TRANSLATE("NullFilter (empty test filter).\n"
                "by Eric Moon (8 September 1999)");
        pInfo->kinds = B_BUFFER_CONSUMER | B_BUFFER_PRODUCER | B_CONTROLLABLE;
        pInfo->flavor_flags = 0;
        pInfo->possible_count = 0;
        
        pInfo->in_format_count = 1;
        media_format* pFormat = new media_format;
        pFormat->type = B_MEDIA_RAW_AUDIO;
        pFormat->u.raw_audio = media_raw_audio_format::wildcard;
        pInfo->in_formats = pFormat;

        pInfo->out_format_count = 1;
        pFormat = new media_format;
        pFormat->type = B_MEDIA_RAW_AUDIO;
        pFormat->u.raw_audio = media_raw_audio_format::wildcard;
        pInfo->out_formats = pFormat;
        
        *out_info = pInfo;
        return B_OK;
}

BMediaNode* NullFilterAddOn::InstantiateNodeFor(
        const flavor_info* info,
        BMessage* config,
        status_t* out_error) {

        return new _NullFilterNode(
                "NullFilter",
                new NullAudioOpFactory(),
                this);
}

status_t NullFilterAddOn::GetConfigurationFor(
        BMediaNode* your_node,
        BMessage* into_message) {
        
        // no config yet
        return B_OK;
}


// END -- NullFilterAddOn.cpp --