khronosfws/openmax_al/src/engine/xavideodecodercapabilitiesitf.c
changeset 12 5a06f39ad45b
child 16 43d09473c595
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/khronosfws/openmax_al/src/engine/xavideodecodercapabilitiesitf.c	Fri Apr 16 15:29:42 2010 +0300
@@ -0,0 +1,202 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+
+
+#include "xaglobals.h"
+#include "xavideodecodercapabilitiesitf.h"
+#ifdef _GSTREAMER_BACKEND_  
+#include "XAStaticCapsAdaptation.h"
+#endif
+/* XAVideoDecoderCapabilitiesItfImpl* GetImpl
+ * Description: Validate interface pointer and cast it to implementation pointer.
+ */
+static XAVideoDecoderCapabilitiesItfImpl* GetImpl(XAVideoDecoderCapabilitiesItf self)
+{
+    if( self )
+    {
+        XAVideoDecoderCapabilitiesItfImpl* impl = (XAVideoDecoderCapabilitiesItfImpl*)(*self);
+        if( impl && (impl == impl->self) )
+        {
+            return impl;
+        }
+    }
+    return NULL;
+}
+
+/**
+ * Base interface XAVideoDecoderCapabilitiesItf implementation
+ **/
+
+/* XAresult XAVideoDecoderCapabilitiesItfImpl_GetVideoDecoders
+ * Description: Retrieves available video decoders.
+ */
+XAresult XAVideoDecoderCapabilitiesItfImpl_GetVideoDecoders(
+                            XAVideoDecoderCapabilitiesItf self,
+                            XAuint32* pNumDecoders,
+                            XAuint32* pDecoderIds)
+{
+    XAVideoDecoderCapabilitiesItfImpl* impl = NULL;
+    XAresult res = XA_RESULT_SUCCESS;
+
+    DEBUG_API("->XAVideoDecoderCapabilitiesItfImpl_GetVideoDecoders");
+
+    impl = GetImpl(self);
+    if( !impl || !pNumDecoders )
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        res = XA_RESULT_PARAMETER_INVALID;
+    }
+    else
+    {
+        if( pDecoderIds )
+        {   /* query array of decoders */
+            if( *pNumDecoders < impl->numCodecs )
+            {
+                DEBUG_ERR("XA_RESULT_BUFFER_INSUFFICIENT");
+                res = XA_RESULT_BUFFER_INSUFFICIENT;
+            }
+            else
+            {
+                
+#ifdef _GSTREAMER_BACKEND_  
+                XAuint32 i = 0;
+                XAStaticCapsData temp;
+                for( i=0; i<impl->numCodecs; i++ )
+                {
+                    /* query decoder id from adaptation using index value */
+                    XAStaticCapsAdapt_GetCapsByIdx(XACAP_DECODER|XACAP_VIDEO, i, &temp);
+                    pDecoderIds[i] = temp.xaid;
+                }
+#endif
+            }
+        }
+        /* return number of decoders */
+        *pNumDecoders = impl->numCodecs;
+    }
+
+    DEBUG_API("<-XAVideoDecoderCapabilitiesItfImpl_GetVideoDecoders");
+    return res;
+}
+
+/* XAresult XAVideoDecoderCapabilitiesItfImpl_GetVideoDecoderCapabilities
+ * Description: Retrieves video decoder capabilities.
+ */
+XAresult XAVideoDecoderCapabilitiesItfImpl_GetVideoDecoderCapabilities(
+                            XAVideoDecoderCapabilitiesItf self,
+                            XAuint32 decoderId,
+                            XAuint32* pIndex,
+                            XAVideoCodecDescriptor* pDescriptor)
+{
+    XAVideoDecoderCapabilitiesItfImpl* impl = NULL;
+    XAresult res = XA_RESULT_SUCCESS;
+    DEBUG_API("->XAVideoDecoderCapabilitiesItfImpl_GetDecoderCapabilities");
+    impl = GetImpl(self);
+
+    if( !impl || !pIndex )
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        res = XA_RESULT_PARAMETER_INVALID;
+    }
+    else
+    {
+        if( !pDescriptor )
+        {   /* query number of capa structures */
+            *pIndex = 1;
+        }
+        else
+        {   /* query capabilities */
+            if( *pIndex >= 1 )
+            {
+                DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+                res = XA_RESULT_PARAMETER_INVALID;
+            }
+            else
+            {
+                /* query capabilities from adaptation using codec id */
+#ifdef _GSTREAMER_BACKEND_  
+                XAStaticCapsData temp;
+                memset(pDescriptor,0,sizeof(XAVideoCodecDescriptor));
+                res = XAStaticCapsAdapt_GetCapsById(XACAP_DECODER|XACAP_VIDEO, decoderId, &temp);
+                if( res == XA_RESULT_SUCCESS )
+                {
+                    /* map applicable values to XAVideoCodecCapabilities */
+                    pDescriptor->codecId = temp.xaid;
+                    pDescriptor->maxWidth = temp.maxW;
+                    pDescriptor->maxHeight = temp.maxH;
+                    pDescriptor->maxFrameRate = (temp.maxFR & 0xffff)<<16;
+                    pDescriptor->maxBitRate = temp.maxBR;
+                    /*other caps undefined*/
+                    pDescriptor->rateControlSupported = 0; /* reserved in decoders */
+                    pDescriptor->profileSetting = 0; /* unknown for theora or motionjpeg */
+                    pDescriptor->levelSetting = 0; /* unknown for theora or motionjpeg */
+                }
+#endif
+            }
+        }
+    }
+
+    DEBUG_API("<-XAVideoDecoderCapabilitiesItfImpl_GetDecoderCapabilities");
+    return res;
+}
+
+/**
+ * XAVideoDecoderCapabilitiesItfImpl -specific methods
+ **/
+
+/* XAVideoDecoderCapabilitiesItfImpl_Create
+ * Description: Allocate and initialize XAVideoDecoderCapabilitiesItfImpl
+ */
+XAVideoDecoderCapabilitiesItfImpl* XAVideoDecoderCapabilitiesItfImpl_Create()
+{
+    XAVideoDecoderCapabilitiesItfImpl* self = (XAVideoDecoderCapabilitiesItfImpl*)
+        calloc(1,sizeof(XAVideoDecoderCapabilitiesItfImpl));
+    DEBUG_API("->XAVideoDecoderCapabilitiesItfImpl_Create");
+
+    if( self )
+    {
+        /* init itf default implementation */
+        self->itf.GetVideoDecoders =
+            XAVideoDecoderCapabilitiesItfImpl_GetVideoDecoders;
+        self->itf.GetVideoDecoderCapabilities =
+            XAVideoDecoderCapabilitiesItfImpl_GetVideoDecoderCapabilities;
+
+#ifdef _GSTREAMER_BACKEND_  
+        /* init variables */
+        assert( XAStaticCapsAdapt_GetCapsCount( XACAP_DECODER|XACAP_VIDEO,
+                                  &(self->numCodecs) ) == XA_RESULT_SUCCESS );
+#endif
+        self->self = self;
+    }
+    DEBUG_API("<-XAVideoDecoderCapabilitiesItfImpl_Create");
+    return self;
+}
+
+/* void XAVideoDecoderCapabilitiesItfImpl_Free
+ * Description: Free all resources reserved at XAVideoDecoderCapabilitiesItfImpl_Create
+ */
+void XAVideoDecoderCapabilitiesItfImpl_Free(XAVideoDecoderCapabilitiesItfImpl* self)
+{
+    DEBUG_API("->XAVideoDecoderCapabilitiesItfImpl_Free");
+    assert(self==self->self);
+    free(self);
+    DEBUG_API("<-XAVideoDecoderCapabilitiesItfImpl_Free");
+}