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/*
* Copyright (c) 2012, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef WAVE_WRITER_H_
#define WAVE_WRITER_H_
#include <stdio.h>
#include <media/stagefright/MediaWriter.h>
#include <utils/threads.h>
namespace android {
#define ID_RIFF 0x46464952
#define ID_WAVE 0x45564157
#define ID_FMT 0x20746d66
#define ID_DATA 0x61746164
#define FORMAT_PCM 1
struct MediaSource;
struct MetaData;
struct wav_header {
uint32_t riff_id;
uint32_t riff_sz;
uint32_t riff_fmt;
uint32_t fmt_id;
uint32_t fmt_sz;
uint16_t audio_format;
uint16_t num_channels;
uint32_t sample_rate;
uint32_t byte_rate; /* sample_rate * num_channels * bps / 8 */
uint16_t block_align; /* num_channels * bps / 8 */
uint16_t bits_per_sample;
uint32_t data_id;
uint32_t data_sz;
};
struct WAVEWriter : public MediaWriter {
WAVEWriter(const char *filename);
WAVEWriter(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 ~WAVEWriter();
private:
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;
static void *ThreadWrapper(void *);
status_t threadFunc();
bool exceedsFileSizeLimit();
bool exceedsFileDurationLimit();
WAVEWriter(const WAVEWriter &);
WAVEWriter &operator=(const WAVEWriter &);
};
} // namespace android
#endif // WAVE_WRITER_H_
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