Initial check-in for AACWriter

Change-Id: Ia21ca39a404484b2dda25c6101780d2ff11c4623

related-to-bug: 4211046

1 files changed, 75 insertions, 0 deletions

diff --git a/include/media/stagefright/AACWriter.h b/include/media/stagefright/AACWriter.h
new file mode 100644
index 0000000..fa3ab8a
--- /dev/null
+++ b/include/media/stagefright/AACWriter.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2011 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 AAC_WRITER_H_
+#define AAC_WRITER_H_
+
+#include <media/stagefright/MediaWriter.h>
+#include <utils/threads.h>
+
+namespace android {
+
+struct MediaSource;
+struct MetaData;
+
+struct AACWriter : public MediaWriter {
+    AACWriter(const char *filename);
+    AACWriter(int fd);
+
+    status_t initCheck() const;
+
+    virtual status_t addSource(const sp<MediaSource> &source);
+    virtual bool reachedEOS();
+    virtual status_t start(MetaData *params = NULL);
+    virtual status_t stop();
+    virtual status_t pause();
+
+protected:
+    virtual ~AACWriter();
+
+private:
+    enum {
+        kAdtsHeaderLength = 7,     // # of bytes for the adts header
+        kSamplesPerFrame  = 1024,  // # of samples in a frame
+    };
+
+    int   mFd;
+    status_t mInitCheck;
+    sp<MediaSource> mSource;
+    bool mStarted;
+    volatile bool mPaused;
+    volatile bool mResumed;
+    volatile bool mDone;
+    volatile bool mReachedEOS;
+    pthread_t mThread;
+    int64_t mEstimatedSizeBytes;
+    int64_t mEstimatedDurationUs;
+    int32_t mChannelCount;
+    int32_t mSampleRate;
+    int32_t mFrameDurationUs;
+
+    static void *ThreadWrapper(void *);
+    status_t threadFunc();
+    bool exceedsFileSizeLimit();
+    bool exceedsFileDurationLimit();
+    status_t writeAdtsHeader(uint32_t frameLength);
+
+    DISALLOW_EVIL_CONSTRUCTORS(AACWriter);
+};
+
+}  // namespace android
+
+#endif  // AAC_WRITER_H_