videoeditor preview code on honeycomb
Change-Id: I9c3c9cb921ea697ab16732973d26ef9035cda2ee
diff --git a/libvideoeditor/lvpp/VideoEditorSRC.h b/libvideoeditor/lvpp/VideoEditorSRC.h
new file mode 100755
index 0000000..3c557a4
--- /dev/null
+++ b/libvideoeditor/lvpp/VideoEditorSRC.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2011 NXP Software
+ * 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.
+ */
+
+#include <utils/RefBase.h>
+#include <media/stagefright/MediaErrors.h>
+
+#include <media/stagefright/MediaSource.h>
+#include <media/stagefright/MediaBuffer.h>
+#include <media/stagefright/MediaBufferGroup.h>
+#include <media/stagefright/MediaDefs.h>
+
+#include "AudioBufferProvider.h"
+#include "AudioResampler.h"
+
+namespace android {
+//struct MediaSource;
+
+
+class VideoEditorSRC : public MediaSource , public AudioBufferProvider {
+
+ public:
+ VideoEditorSRC(
+ const sp<MediaSource> &source);
+
+ virtual status_t start (MetaData *params = NULL);
+ virtual status_t stop();
+ virtual sp<MetaData> getFormat();
+ virtual status_t read (
+ MediaBuffer **buffer, const ReadOptions *options = NULL);
+
+ virtual status_t getNextBuffer(Buffer* buffer);
+ virtual void releaseBuffer(Buffer* buffer);
+
+ void setResampling(int32_t sampleRate=kFreq32000Hz);
+
+ enum { //Sampling freq
+ kFreq8000Hz = 8000,
+ kFreq11025Hz = 11025,
+ kFreq12000Hz = 12000,
+ kFreq16000Hz = 16000,
+ kFreq22050Hz = 22050,
+ kFreq240000Hz = 24000,
+ kFreq32000Hz = 32000,
+ kFreq44100 = 44100,
+ kFreq48000 = 48000,
+ };
+
+ static const uint16_t UNITY_GAIN = 0x1000;
+ static const int32_t DEFAULT_SAMPLING_FREQ = (int32_t)kFreq32000Hz; // kFreq44100;
+
+ protected :
+ virtual ~VideoEditorSRC();
+ private:
+
+ VideoEditorSRC();
+ VideoEditorSRC &operator=(const VideoEditorSRC &);
+
+ AudioResampler *mResampler;
+ AudioBufferProvider *mbufferProvider;
+ sp<MediaSource> mSource;
+ MediaBuffer *mCopyBuffer;
+ MediaBufferGroup *mGroup;
+ uint8_t *mInputByteBuffer;
+ int32_t mInputBufferLength;
+ int mInputFrameSize;
+ int mBitDepth;
+ int mChannelCnt;
+ int mSampleRate;
+ int32_t mOutputSampleRate;
+ bool mStarted;
+ bool mIsResamplingRequired;
+ bool mIsChannelConvertionRequired; // for mono to stereo
+ sp<MetaData> mOutputFormat;
+ Mutex mLock;
+ int32_t *pTmpBuffer;
+
+ uint8_t* pInterframeBuffer;
+ int32_t mInterframeBufferPosition;
+ int32_t mLeftover;
+ int32_t mLastReadSize ;
+
+ int64_t mInitialTimeStampUs;
+ int64_t mAccuOutBufferSize;
+
+ int64_t mSeekTimeUs;
+ ReadOptions::SeekMode mSeekMode;
+
+};
+
+} //namespce android
+