Initial checkin of software AMR NB encoder based on PV source code.

1 files changed, 64 insertions, 0 deletions

diff --git a/media/libstagefright/include/AMRNBEncoder.h b/media/libstagefright/include/AMRNBEncoder.h
new file mode 100644
index 0000000..7167c00
--- /dev/null
+++ b/media/libstagefright/include/AMRNBEncoder.h
@@ -0,0 +1,64 @@
+/*
+ * 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_NB_ENCODER_H_
+
+#define AMR_NB_ENCODER_H_
+
+#include <media/stagefright/MediaSource.h>
+
+namespace android {
+
+struct MediaBufferGroup;
+
+struct AMRNBEncoder : public MediaSource {
+    AMRNBEncoder(const sp<MediaSource> &source);
+
+    virtual status_t start(MetaData *params);
+    virtual status_t stop();
+
+    virtual sp<MetaData> getFormat();
+
+    virtual status_t read(
+            MediaBuffer **buffer, const ReadOptions *options);
+
+protected:
+    virtual ~AMRNBEncoder();
+
+private:
+    sp<MediaSource> mSource;
+    bool mStarted;
+
+    MediaBufferGroup *mBufferGroup;
+
+    void *mEncState;
+    void *mSidState;
+    int64_t mAnchorTimeUs;
+    int64_t mNumFramesOutput;
+
+    MediaBuffer *mInputBuffer;
+    int mMode;
+
+    int16_t mInputFrame[160];
+    int32_t mNumInputSamples;
+
+    AMRNBEncoder(const AMRNBEncoder &);
+    AMRNBEncoder &operator=(const AMRNBEncoder &);
+};
+
+}  // namespace android
+
+#endif  // AMR_NB_ENCODER_H_