1 files changed, 86 insertions, 0 deletions
diff --git a/media/libstagefright/include/WVMExtractor.h b/media/libstagefright/include/WVMExtractor.h
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+++ b/media/libstagefright/include/WVMExtractor.h
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+/*
+ * 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.
+ */
+
+#ifndef WVM_EXTRACTOR_H_
+
+#define WVM_EXTRACTOR_H_
+
+#include <media/stagefright/MediaExtractor.h>
+#include <utils/Errors.h>
+
+namespace android {
+
+struct AMessage;
+class String8;
+class DataSource;
+
+class WVMLoadableExtractor : public MediaExtractor {
+public:
+    WVMLoadableExtractor() {}
+    virtual ~WVMLoadableExtractor() {}
+
+    virtual int64_t getCachedDurationUs(status_t *finalStatus) = 0;
+    virtual void setAdaptiveStreamingMode(bool adaptive) = 0;
+    virtual void setUID(uid_t uid) = 0;
+};
+
+class WVMExtractor : public MediaExtractor {
+public:
+    WVMExtractor(const sp<DataSource> &source);
+
+    virtual size_t countTracks();
+    virtual sp<MediaSource> getTrack(size_t index);
+    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
+    virtual sp<MetaData> getMetaData();
+
+    // Return the amount of data cached from the current
+    // playback positiion (in us).
+    // While more data is still being fetched *finalStatus == OK,
+    // Once fetching is completed (no more data available), *finalStatus != OK
+    // If fetching completed normally (i.e. reached EOS instead of IO error)
+    // *finalStatus == ERROR_END_OF_STREAM
+    int64_t getCachedDurationUs(status_t *finalStatus);
+
+    // Set to use adaptive streaming mode by the WV component.
+    // If adaptive == true, adaptive streaming mode will be used.
+    // Default mode is non-adaptive streaming mode.
+    // Should set to use adaptive streaming mode only if widevine:// protocol
+    // is used.
+    void setAdaptiveStreamingMode(bool adaptive);
+
+    void setUID(uid_t uid);
+
+    static bool getVendorLibHandle();
+
+protected:
+    virtual ~WVMExtractor();
+
+private:
+    sp<DataSource> mDataSource;
+    sp<WVMLoadableExtractor> mImpl;
+
+    WVMExtractor(const WVMExtractor &);
+    WVMExtractor &operator=(const WVMExtractor &);
+};
+
+bool SniffWVM(
+        const sp<DataSource> &source, String8 *mimeType, float *confidence,
+        sp<AMessage> *);
+
+}  // namespace android
+
+#endif  // DRM_EXTRACTOR_H_
+