khronosfws/openmax_al/src/engine/xaimagedecodercapabilitiesitf.c
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 14 May 2010 16:22:35 +0300
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permissions -rw-r--r--
Revision: 201017 Kit: 201019
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <string.h>
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#include "xaglobals.h"
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#include "xaimagedecodercapabilitiesitf.h"
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#include "xacapabilitiesmgr.h"
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/* XAImageDecoderCapabilitiesItfImpl* GetImpl
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 * Description: Validate interface pointer and cast it to implementation pointer.
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 */
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static XAImageDecoderCapabilitiesItfImpl* GetImpl(XAImageDecoderCapabilitiesItf self)
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{
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    if( self )
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    {
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        XAImageDecoderCapabilitiesItfImpl* impl = (XAImageDecoderCapabilitiesItfImpl*)(*self);
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        if( impl && (impl == impl->self) )
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        {
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            return impl;
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        }
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    }
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    return NULL;
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}
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/**
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 * Base interface XAImageDecoderCapabilitiesItf implementation
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 **/
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/* XAresult XAImageDecoderCapabilitiesItfImpl_GetImageDecoderCapabilities
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 * Description: Retrieves image decoder capabilities.
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 */
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XAresult XAImageDecoderCapabilitiesItfImpl_GetImageDecoderCapabilities(
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                            XAImageDecoderCapabilitiesItf self,
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                            XAuint32* pDecoderId,
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                            XAImageCodecDescriptor* pDescriptor)
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{
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    XAImageDecoderCapabilitiesItfImpl* impl = NULL;
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    XAresult res = XA_RESULT_SUCCESS;
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    DEBUG_API("->XAImageDecoderCapabilitiesItfImpl_GetImageDecoderCapabilities");
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    impl = GetImpl(self);
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    if( !impl || !pDecoderId )
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    {
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        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
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        res = XA_RESULT_PARAMETER_INVALID;
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    }
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    else
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    {
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        if( !pDescriptor )
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        {   /* query number of image decoders */
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            *pDecoderId = impl->numCodecs;
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        }
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        else
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        {
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            /* query capabilities from adaptation using codec id */
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            XACapabilities temp;
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            memset(pDescriptor,0,sizeof(XAImageCodecDescriptor));
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            /* here pEncoderId refers to index rather than codec id */
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            res = XACapabilitiesMgr_GetCapsByIdx(NULL, (XACapsType)(XACAP_DECODER|XACAP_IMAGE), *pDecoderId, &temp);
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            if( res == XA_RESULT_SUCCESS )
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            {
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                XAImageCodecDescriptor* desc = (XAImageCodecDescriptor*)(&temp.pEntry);
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                /* map applicable values to XAAudioCodecCapabilities */
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                pDescriptor->codecId = temp.xaid;
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                pDescriptor->maxWidth = desc->maxWidth;
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                pDescriptor->maxHeight = desc->maxHeight;
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            }
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        }
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    }
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    DEBUG_API("<-XAImageDecoderCapabilitiesItfImpl_GetImageDecoderCapabilities");
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    return res;
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}
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/* XAresult XAImageDecoderCapabilitiesItfImpl_QueryColorFormats
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 * Description: This method is used to query the color formats supported
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 *              by the image decoder.
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 */
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XAresult XAImageDecoderCapabilitiesItfImpl_QueryColorFormats(
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                            const XAImageDecoderCapabilitiesItf self,
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                            XAuint32* pIndex,
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                            XAuint32* pColorFormats)
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{
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    XAImageDecoderCapabilitiesItfImpl* impl = NULL;
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    XAresult res = XA_RESULT_SUCCESS;
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    DEBUG_API("->XAImageDecoderCapabilitiesItfImpl_QueryColorFormats");
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    impl = GetImpl(self);
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    if( !impl || !pIndex )
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    {
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        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
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        res = XA_RESULT_PARAMETER_INVALID;
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    }
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    else
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    {
16
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        res = XACapabilitiesMgr_QueryColorFormats(NULL, pIndex, pColorFormats);
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12
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    }
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    DEBUG_API("<-XAImageDecoderCapabilitiesItfImpl_QueryColorFormats");
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    return res;
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}
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/**
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 * XAImageDecoderCapabilitiesItfImpl -specific methods
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 **/
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/* XAImageDecoderCapabilitiesItfImpl_Create
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 * Description: Allocate and initialize XAImageDecoderCapabilitiesItfImpl
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 */
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XAImageDecoderCapabilitiesItfImpl* XAImageDecoderCapabilitiesItfImpl_Create()
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{
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    XAImageDecoderCapabilitiesItfImpl* self = (XAImageDecoderCapabilitiesItfImpl*)
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        calloc(1,sizeof(XAImageDecoderCapabilitiesItfImpl));
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    DEBUG_API("->XAImageDecoderCapabilitiesItfImpl_Create");
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    if( self )
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    {
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        /* init itf default implementation */
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        self->itf.GetImageDecoderCapabilities =
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            XAImageDecoderCapabilitiesItfImpl_GetImageDecoderCapabilities;
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        self->itf.QueryColorFormats =
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            XAImageDecoderCapabilitiesItfImpl_QueryColorFormats;
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12
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        /* init variables */
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        assert( XACapabilitiesMgr_GetCapsCount( NULL, (XACapsType)(XACAP_DECODER|XACAP_IMAGE),
12
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                                  &(self->numCodecs) ) == XA_RESULT_SUCCESS );
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12
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        self->self = self;
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    }
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    DEBUG_API("<-XAImageDecoderCapabilitiesItfImpl_Create");
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    return self;
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}
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/* void XAImageDecoderCapabilitiesItfImpl_Free
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 * Description: Free all resources reserved at XAImageDecoderCapabilitiesItfImpl
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 */
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void XAImageDecoderCapabilitiesItfImpl_Free(XAImageDecoderCapabilitiesItfImpl* self)
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{
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    DEBUG_API("->XAImageDecoderCapabilitiesItfImpl_Free");
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    assert(self==self->self);
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    free(self);
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    DEBUG_API("<-XAImageDecoderCapabilitiesItfImpl_Free");
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}