1 files changed, 61 insertions, 0 deletions
diff --git a/include/media/stagefright/DataSource.h b/include/media/stagefright/DataSource.h
new file mode 100644
index 0000000..31eea27
--- /dev/null
+++ b/include/media/stagefright/DataSource.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#ifndef DATA_SOURCE_H_
+
+#define DATA_SOURCE_H_
+
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/List.h>
+#include <utils/threads.h>
+
+namespace android {
+
+class String8;
+
+class DataSource {
+public:
+    DataSource() {}
+    virtual ~DataSource() {}
+
+    virtual ssize_t read_at(off_t offset, void *data, size_t size) = 0;
+
+    // May return ERROR_UNSUPPORTED.
+    virtual status_t getSize(off_t *size);
+
+    ////////////////////////////////////////////////////////////////////////////
+
+    bool sniff(String8 *mimeType, float *confidence);
+
+    typedef bool (*SnifferFunc)(
+            DataSource *source, String8 *mimeType, float *confidence);
+
+    static void RegisterSniffer(SnifferFunc func);
+    static void RegisterDefaultSniffers();
+
+private:
+    static Mutex gSnifferMutex;
+    static List<SnifferFunc> gSniffers;
+
+    DataSource(const DataSource &);
+    DataSource &operator=(const DataSource &);
+};
+
+}  // namespace android
+
+#endif  // DATA_SOURCE_H_