Added a .amr file extractor (for AMR-NB and AMR-WB content).

2 files changed, 57 insertions, 3 deletions

diff --git a/include/media/stagefright/AMRExtractor.h b/include/media/stagefright/AMRExtractor.h
new file mode 100644
index 0000000..c8710d3
--- /dev/null
+++ b/include/media/stagefright/AMRExtractor.h
@@ -0,0 +1,54 @@
+/*
+ * 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 AMR_EXTRACTOR_H_
+
+#define AMR_EXTRACTOR_H_
+
+#include <media/stagefright/MediaExtractor.h>
+
+namespace android {
+
+class String8;
+
+class AMRExtractor : public MediaExtractor {
+public:
+    AMRExtractor(const sp<DataSource> &source);
+
+    virtual size_t countTracks();
+    virtual sp<MediaSource> getTrack(size_t index);
+    virtual sp<MetaData> getTrackMetaData(size_t index);
+
+    static sp<MetaData> makeAMRFormat(bool isWide);
+
+protected:
+    virtual ~AMRExtractor();
+
+private:
+    sp<DataSource> mDataSource;
+    status_t mInitCheck;
+    bool mIsWide;
+
+    AMRExtractor(const AMRExtractor &);
+    AMRExtractor &operator=(const AMRExtractor &);
+};
+
+bool SniffAMR(
+        const sp<DataSource> &source, String8 *mimeType, float *confidence);
+
+}  // namespace android
+
+#endif  // AMR_EXTRACTOR_H_
diff --git a/include/media/stagefright/MP3Extractor.h b/include/media/stagefright/MP3Extractor.h
index 4e1f3c3..11ba01d 100644
--- a/include/media/stagefright/MP3Extractor.h
+++ b/include/media/stagefright/MP3Extractor.h
@@ -30,9 +30,9 @@ public:
     // Extractor assumes ownership of "source".
     MP3Extractor(const sp<DataSource> &source);
 
-    size_t countTracks();
-    sp<MediaSource> getTrack(size_t index);
-    sp<MetaData> getTrackMetaData(size_t index);
+    virtual size_t countTracks();
+    virtual sp<MediaSource> getTrack(size_t index);
+    virtual sp<MetaData> getTrackMetaData(size_t index);
 
 protected:
     virtual ~MP3Extractor();