Stagefright: Make classes customizable and add AV extensions

Change access modifiers and qualify methods with virtual, to
allow extensions. Add facility for loading customizations
(Extended classes) dynamically.

Conflicts:
	media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp

Change-Id: Icc8965754fb1c73175a13a9ad24c19665ad60988

1 files changed, 73 insertions, 0 deletions

diff --git a/media/libavextensions/stagefright/AVUtils.cpp b/media/libavextensions/stagefright/AVUtils.cpp
new file mode 100644
index 0000000..3c2ecd9
--- /dev/null
+++ b/media/libavextensions/stagefright/AVUtils.cpp
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2013 - 2015, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *     * Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of The Linux Foundation nor the names of its
+ *      contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * 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.
+ */
+
+#define LOG_TAG "AVUtils"
+#include <utils/Log.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AMessage.h>
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/MediaCodecList.h>
+#include <media/stagefright/MetaData.h>
+#include <media/stagefright/ACodec.h>
+
+#include "common/ExtensionsLoader.hpp"
+#include "stagefright/AVExtensions.h"
+
+namespace android {
+
+status_t AVUtils::convertMetaDataToMessage(
+        const sp<MetaData> &, sp<AMessage> *) {
+    return OK;
+}
+
+static bool dumbSniffer(
+        const sp<DataSource> &, String8 *,
+        float *, sp<AMessage> *) {
+    return false;
+}
+
+DataSource::SnifferFunc AVUtils::getExtendedSniffer() {
+    return dumbSniffer;
+}
+
+// ----- NO TRESSPASSING BEYOND THIS LINE ------
+AVUtils::AVUtils() {
+}
+
+AVUtils::~AVUtils() {
+}
+
+//static
+AVUtils *AVUtils::sInst =
+        ExtensionsLoader<AVUtils>::createInstance("createExtendedUtils");
+
+} //namespace android
+