A new OggExtractor/VorbisDecoder combo to support approximate seeking.

Change-Id: Id5d0c1c8b1adc62896bb5ed951f7b5cfda811e95
related-to-bug: 2654400

1 files changed, 60 insertions, 0 deletions

diff --git a/media/libstagefright/include/OggExtractor.h b/media/libstagefright/include/OggExtractor.h
new file mode 100644
index 0000000..7066669
--- /dev/null
+++ b/media/libstagefright/include/OggExtractor.h
@@ -0,0 +1,60 @@
+/*
+ * 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 OGG_EXTRACTOR_H_
+
+#define OGG_EXTRACTOR_H_
+
+#include <media/stagefright/MediaExtractor.h>
+
+namespace android {
+
+class DataSource;
+class String8;
+
+struct MyVorbisExtractor;
+struct OggSource;
+
+struct OggExtractor : public MediaExtractor {
+    OggExtractor(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();
+
+protected:
+    virtual ~OggExtractor();
+
+private:
+    friend struct OggSource;
+
+    sp<DataSource> mDataSource;
+    status_t mInitCheck;
+
+    MyVorbisExtractor *mImpl;
+
+    OggExtractor(const OggExtractor &);
+    OggExtractor &operator=(const OggExtractor &);
+};
+
+bool SniffOgg(
+        const sp<DataSource> &source, String8 *mimeType, float *confidence);
+
+}  // namespace android
+
+#endif  // OGG_EXTRACTOR_H_