original

[gb-231r1-is01/GB_2.3_IS01.git] / system / media / opensles / libopensles / IMetadataTraversal.c

diff --git a/system/media/opensles/libopensles/IMetadataTraversal.c b/system/media/opensles/libopensles/IMetadataTraversal.c
new file mode 100644 (file)
index 0000000..0793eeb
--- /dev/null
+++ b/system/media/opensles/libopensles/IMetadataTraversal.c
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* MetadataTraversal implementation */
+
+#include "sles_allinclusive.h"
+
+
+static SLresult IMetadataTraversal_SetMode(SLMetadataTraversalItf self, SLuint32 mode)
+{
+    SL_ENTER_INTERFACE
+
+    switch (mode) {
+    case SL_METADATATRAVERSALMODE_ALL:
+    case SL_METADATATRAVERSALMODE_NODE:
+        {
+        IMetadataTraversal *this = (IMetadataTraversal *) self;
+        interface_lock_poke(this);
+        this->mMode = mode;
+        interface_unlock_poke(this);
+        result = SL_RESULT_SUCCESS;
+        }
+        break;
+    default:
+        result = SL_RESULT_PARAMETER_INVALID;
+        break;
+    }
+
+    SL_LEAVE_INTERFACE
+}
+
+
+static SLresult IMetadataTraversal_GetChildCount(SLMetadataTraversalItf self, SLuint32 *pCount)
+{
+    SL_ENTER_INTERFACE
+
+    if (NULL == pCount) {
+        result = SL_RESULT_PARAMETER_INVALID;
+    } else {
+        IMetadataTraversal *this = (IMetadataTraversal *) self;
+        interface_lock_peek(this);
+        SLuint32 count = this->mCount;
+        interface_unlock_peek(this);
+        *pCount = count;
+        result = SL_RESULT_SUCCESS;
+    }
+
+    SL_LEAVE_INTERFACE
+}
+
+
+static SLresult IMetadataTraversal_GetChildMIMETypeSize(
+    SLMetadataTraversalItf self, SLuint32 index, SLuint32 *pSize)
+{
+    SL_ENTER_INTERFACE
+
+    if (NULL == pSize) {
+        result = SL_RESULT_PARAMETER_INVALID;
+    } else {
+        IMetadataTraversal *this = (IMetadataTraversal *) self;
+        interface_lock_peek(this);
+        SLuint32 size = this->mSize;
+        interface_unlock_peek(this);
+        *pSize = size;
+        result = SL_RESULT_SUCCESS;
+    }
+
+    SL_LEAVE_INTERFACE
+}
+
+
+static SLresult IMetadataTraversal_GetChildInfo(SLMetadataTraversalItf self, SLuint32 index,
+    SLint32 *pNodeID, SLuint32 *pType, SLuint32 size, SLchar *pMimeType)
+{
+    SL_ENTER_INTERFACE
+
+    //IMetadataTraversal *this = (IMetadataTraversal *) self;
+    result = SL_RESULT_FEATURE_UNSUPPORTED;
+
+    SL_LEAVE_INTERFACE
+}
+
+
+static SLresult IMetadataTraversal_SetActiveNode(SLMetadataTraversalItf self, SLuint32 index)
+{
+    SL_ENTER_INTERFACE
+
+    if (SL_NODE_PARENT == index) {
+        ;
+    }
+    IMetadataTraversal *this = (IMetadataTraversal *) self;
+    this->mIndex = index;
+    result = SL_RESULT_PARAMETER_INVALID;
+
+    SL_LEAVE_INTERFACE
+}
+
+
+static const struct SLMetadataTraversalItf_ IMetadataTraversal_Itf = {
+    IMetadataTraversal_SetMode,
+    IMetadataTraversal_GetChildCount,
+    IMetadataTraversal_GetChildMIMETypeSize,
+    IMetadataTraversal_GetChildInfo,
+    IMetadataTraversal_SetActiveNode
+};
+
+void IMetadataTraversal_init(void *self)
+{
+    IMetadataTraversal *this = (IMetadataTraversal *) self;
+    this->mItf = &IMetadataTraversal_Itf;
+    this->mIndex = 0;
+    this->mMode = SL_METADATATRAVERSALMODE_NODE;
+    this->mCount = 0;
+    this->mSize = 0;
+}