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/*
 * Copyright (C) 2009 The Android Open Source Project
 * Copyright (C) 2013 Mozilla Foundation
 *
 * 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 "nsDebug.h"
#define DOM_CAMERA_LOG_LEVEL        3
#include "CameraCommon.h"
#include "GonkCameraSource.h"
#include "GonkRecorder.h"
#include "mozilla/CondVar.h"

#define RE_LOGD(fmt, ...) DOM_CAMERA_LOGA("[%s:%d]" fmt,__FILE__,__LINE__, ## __VA_ARGS__)
#define RE_LOGV(fmt, ...) DOM_CAMERA_LOGI("[%s:%d]" fmt,__FILE__,__LINE__, ## __VA_ARGS__)
#define RE_LOGI(fmt, ...) DOM_CAMERA_LOGI("[%s:%d]" fmt,__FILE__,__LINE__, ## __VA_ARGS__)
#define RE_LOGW(fmt, ...) DOM_CAMERA_LOGW("[%s:%d]" fmt,__FILE__,__LINE__, ## __VA_ARGS__)
#define RE_LOGE(fmt, ...) DOM_CAMERA_LOGE("[%s:%d]" fmt,__FILE__,__LINE__, ## __VA_ARGS__)

#include <binder/IPCThreadState.h>
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
# include <media/openmax/OMX_Audio.h>
#endif
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/AudioSource.h>
#include <media/stagefright/AMRWriter.h>
#include <media/stagefright/AACWriter.h>
#include <media/stagefright/MPEG2TSWriter.h>
#include <media/stagefright/MPEG4Writer.h>
#include <media/stagefright/MediaDefs.h>
#include <media/stagefright/MetaData.h>
#include <media/stagefright/OMXClient.h>
#if ANDROID_VERSION >= 21
#include <media/stagefright/MediaCodecSource.h>
#else
#include <media/stagefright/OMXCodec.h>
#endif
#include <media/MediaProfiles.h>

#include <utils/Errors.h>
#include <sys/types.h>
#include <ctype.h>
#include <unistd.h>

#include <cutils/properties.h>
#include <system/audio.h>

#define RES_720P (720 * 1280)
namespace android {

struct GonkRecorder::WrappedMediaSource : MediaSource {
public:
    WrappedMediaSource(const sp<MediaSource> &encoder);
    status_t start(MetaData *params = NULL) override;
    status_t stop() override;
    sp<MetaData> getFormat() override;
    status_t read(MediaBuffer **buffer, const ReadOptions *options = NULL) override;
    void block();
    status_t resume();

protected:
    virtual ~WrappedMediaSource() {};

private:
    WrappedMediaSource(const WrappedMediaSource &);
    WrappedMediaSource &operator=(const WrappedMediaSource &);

    sp<MediaSource> mEncoder;
    mozilla::Mutex mMutex;
    mozilla::CondVar mCondVar;
    bool mWait;
    bool mResume;
    status_t mResumeStatus;
};

GonkRecorder::WrappedMediaSource::WrappedMediaSource(const sp<MediaSource> &encoder)
    : mEncoder(encoder)
    , mMutex("GonkRecorder::WrappedMediaSource::mMutex")
    , mCondVar(mMutex, "GonkRecorder::WrappedMediaSource::mCondVar")
    , mWait(false)
    , mResume(false)
    , mResumeStatus(UNKNOWN_ERROR)
{
}

status_t
GonkRecorder::WrappedMediaSource::start(MetaData *params)
{
    return mEncoder->start(params);
}

status_t
GonkRecorder::WrappedMediaSource::stop()
{
    {
      // Ensure the writer thread is not blocked first.
      MutexAutoLock lock(mMutex);
      mWait = false;
      mCondVar.Notify();
    }
    return mEncoder->stop();
}

sp<MetaData>
GonkRecorder::WrappedMediaSource::getFormat()
{
    return mEncoder->getFormat();
}

status_t
GonkRecorder::WrappedMediaSource::read(MediaBuffer **buffer, const ReadOptions *options)
{
    MutexAutoLock lock(mMutex);
    while (mWait) {
      mCondVar.Wait();
    }

    status_t rv = UNKNOWN_ERROR;
    MediaBuffer *buf = NULL;

    do {
        rv = mEncoder->read(&buf, options);
        if (!mResume) {
            break;
        }

        if (rv != OK || !buf) {
            mResume = false;
            mResumeStatus = UNKNOWN_ERROR;
            mCondVar.Notify();
            break;
        }

        int32_t isSync = 0;
        buf->meta_data()->findInt32(kKeyIsSyncFrame, &isSync);
        if (isSync) {
            mResume = false;
            mResumeStatus = OK;
            mCondVar.Notify();
            break;
        }

        buf->release();
        buf = NULL;
    } while(true);

    *buffer = buf;
    return rv;
}

void
GonkRecorder::WrappedMediaSource::block()
{
    MutexAutoLock lock(mMutex);
    mWait = true;
}

status_t
GonkRecorder::WrappedMediaSource::resume()
{
    MutexAutoLock lock(mMutex);
    if (!mWait) {
        return UNKNOWN_ERROR;
    }

    mWait = false;
    mResume = true;
    mCondVar.Notify();

    do {
        mCondVar.Wait();
    } while(mResume);

    return mResumeStatus;
}

GonkRecorder::GonkRecorder()
    : mWriter(NULL),
      mOutputFd(-1),
      mAudioSource(AUDIO_SOURCE_CNT),
      mVideoSource(VIDEO_SOURCE_LIST_END),
      mStarted(false) {

    RE_LOGV("Constructor");
    reset();
}

GonkRecorder::~GonkRecorder() {
    RE_LOGV("Destructor");
    stop();

#if ANDROID_VERSION >= 21
    if (mLooper != NULL) {
        mLooper->stop();
    }
#endif
}

status_t GonkRecorder::init() {
    RE_LOGV("init");
#if ANDROID_VERSION >= 21
    mLooper = new ALooper;
    mLooper->setName("recorder_looper");
    mLooper->start();
#endif
    return OK;
}

status_t GonkRecorder::setAudioSource(audio_source_t as) {
    RE_LOGV("setAudioSource: %d", as);
    if (as < AUDIO_SOURCE_DEFAULT ||
        as >= AUDIO_SOURCE_CNT) {
        RE_LOGE("Invalid audio source: %d", as);
        return BAD_VALUE;
    }

    if (as == AUDIO_SOURCE_DEFAULT) {
        mAudioSource = AUDIO_SOURCE_MIC;
    } else {
        mAudioSource = as;
    }

    return OK;
}

status_t GonkRecorder::setVideoSource(video_source vs) {
    RE_LOGV("setVideoSource: %d", vs);
    if (vs < VIDEO_SOURCE_DEFAULT ||
        vs >= VIDEO_SOURCE_LIST_END) {
        RE_LOGE("Invalid video source: %d", vs);
        return BAD_VALUE;
    }

    if (vs == VIDEO_SOURCE_DEFAULT) {
        mVideoSource = VIDEO_SOURCE_CAMERA;
    } else {
        mVideoSource = vs;
    }

    return OK;
}

status_t GonkRecorder::setOutputFormat(output_format of) {
    RE_LOGV("setOutputFormat: %d", of);
    if (of < OUTPUT_FORMAT_DEFAULT ||
        of >= OUTPUT_FORMAT_LIST_END) {
        RE_LOGE("Invalid output format: %d", of);
        return BAD_VALUE;
    }

    if (of == OUTPUT_FORMAT_DEFAULT) {
        mOutputFormat = OUTPUT_FORMAT_THREE_GPP;
    } else {
        mOutputFormat = of;
    }

    return OK;
}

status_t GonkRecorder::setAudioEncoder(audio_encoder ae) {
    RE_LOGV("setAudioEncoder: %d", ae);
    if (ae < AUDIO_ENCODER_DEFAULT ||
        ae >= AUDIO_ENCODER_LIST_END) {
        RE_LOGE("Invalid audio encoder: %d", ae);
        return BAD_VALUE;
    }

    if (ae == AUDIO_ENCODER_DEFAULT) {
        mAudioEncoder = AUDIO_ENCODER_AMR_NB;
    } else {
        mAudioEncoder = ae;
    }

    return OK;
}

status_t GonkRecorder::setVideoEncoder(video_encoder ve) {
    RE_LOGV("setVideoEncoder: %d", ve);
    if (ve < VIDEO_ENCODER_DEFAULT ||
        ve >= VIDEO_ENCODER_LIST_END) {
        RE_LOGE("Invalid video encoder: %d", ve);
        return BAD_VALUE;
    }

    if (ve == VIDEO_ENCODER_DEFAULT) {
        mVideoEncoder = VIDEO_ENCODER_H263;
    } else {
        mVideoEncoder = ve;
    }

    return OK;
}

status_t GonkRecorder::setVideoSize(int width, int height) {
    RE_LOGV("setVideoSize: %dx%d", width, height);
    if (width <= 0 || height <= 0) {
        RE_LOGE("Invalid video size: %dx%d", width, height);
        return BAD_VALUE;
    }

    // Additional check on the dimension will be performed later
    mVideoWidth = width;
    mVideoHeight = height;

    return OK;
}

status_t GonkRecorder::setVideoFrameRate(int frames_per_second) {
    RE_LOGV("setVideoFrameRate: %d", frames_per_second);
    if ((frames_per_second <= 0 && frames_per_second != -1) ||
        frames_per_second > 120) {
        RE_LOGE("Invalid video frame rate: %d", frames_per_second);
        return BAD_VALUE;
    }

    // Additional check on the frame rate will be performed later
    mFrameRate = frames_per_second;

    return OK;
}

status_t GonkRecorder::setOutputFile(const char *path) {
    RE_LOGE("setOutputFile(const char*) must not be called");
    // We don't actually support this at all, as the media_server process
    // no longer has permissions to create files.

    return -EPERM;
}

status_t GonkRecorder::setOutputFile(int fd, int64_t offset, int64_t length) {
    RE_LOGV("setOutputFile: %d, %lld, %lld", fd, offset, length);
    // These don't make any sense, do they?
    CHECK_EQ(offset, 0ll);
    CHECK_EQ(length, 0ll);

    if (fd < 0) {
        RE_LOGE("Invalid file descriptor: %d", fd);
        return -EBADF;
    }

    if (mOutputFd >= 0) {
        ::close(mOutputFd);
    }
    mOutputFd = dup(fd);

    return OK;
}

// Attempt to parse an int64 literal optionally surrounded by whitespace,
// returns true on success, false otherwise.
static bool safe_strtoi64(const char *s, int64_t *val) {
    char *end;

    // It is lame, but according to man page, we have to set errno to 0
    // before calling strtoll().
    errno = 0;
    *val = strtoll(s, &end, 10);

    if (end == s || errno == ERANGE) {
        return false;
    }

    // Skip trailing whitespace
    while (isspace(*end)) {
        ++end;
    }

    // For a successful return, the string must contain nothing but a valid
    // int64 literal optionally surrounded by whitespace.

    return *end == '\0';
}

// Return true if the value is in [0, 0x007FFFFFFF]
static bool safe_strtoi32(const char *s, int32_t *val) {
    int64_t temp;
    if (safe_strtoi64(s, &temp)) {
        if (temp >= 0 && temp <= 0x007FFFFFFF) {
            *val = static_cast<int32_t>(temp);
            return true;
        }
    }
    return false;
}

// Trim both leading and trailing whitespace from the given string.
static void TrimString(String8 *s) {
    size_t num_bytes = s->bytes();
    const char *data = s->string();

    size_t leading_space = 0;
    while (leading_space < num_bytes && isspace(data[leading_space])) {
        ++leading_space;
    }

    size_t i = num_bytes;
    while (i > leading_space && isspace(data[i - 1])) {
        --i;
    }

    s->setTo(String8(&data[leading_space], i - leading_space));
}

status_t GonkRecorder::setParamAudioSamplingRate(int32_t sampleRate) {
    RE_LOGV("setParamAudioSamplingRate: %d", sampleRate);
    if (sampleRate <= 0) {
        RE_LOGE("Invalid audio sampling rate: %d", sampleRate);
        return BAD_VALUE;
    }

    // Additional check on the sample rate will be performed later.
    mSampleRate = sampleRate;
    return OK;
}

status_t GonkRecorder::setParamAudioNumberOfChannels(int32_t channels) {
    RE_LOGV("setParamAudioNumberOfChannels: %d", channels);
    if (channels <= 0 || channels >= 3) {
        RE_LOGE("Invalid number of audio channels: %d", channels);
        return BAD_VALUE;
    }

    // Additional check on the number of channels will be performed later.
    mAudioChannels = channels;
    return OK;
}

status_t GonkRecorder::setParamAudioEncodingBitRate(int32_t bitRate) {
    RE_LOGV("setParamAudioEncodingBitRate: %d", bitRate);
    if (bitRate <= 0) {
        RE_LOGE("Invalid audio encoding bit rate: %d", bitRate);
        return BAD_VALUE;
    }

    // The target bit rate may not be exactly the same as the requested.
    // It depends on many factors, such as rate control, and the bit rate
    // range that a specific encoder supports. The mismatch between the
    // the target and requested bit rate will NOT be treated as an error.
    mAudioBitRate = bitRate;
    return OK;
}

status_t GonkRecorder::setParamVideoEncodingBitRate(int32_t bitRate) {
    RE_LOGV("setParamVideoEncodingBitRate: %d", bitRate);
    if (bitRate <= 0) {
        RE_LOGE("Invalid video encoding bit rate: %d", bitRate);
        return BAD_VALUE;
    }

    // The target bit rate may not be exactly the same as the requested.
    // It depends on many factors, such as rate control, and the bit rate
    // range that a specific encoder supports. The mismatch between the
    // the target and requested bit rate will NOT be treated as an error.
    mVideoBitRate = bitRate;
    return OK;
}

// Always rotate clockwise, and only support 0, 90, 180 and 270 for now.
status_t GonkRecorder::setParamVideoRotation(int32_t degrees) {
    RE_LOGV("setParamVideoRotation: %d", degrees);
    if (degrees < 0 || degrees % 90 != 0) {
        RE_LOGE("Unsupported video rotation angle: %d", degrees);
        return BAD_VALUE;
    }
    mRotationDegrees = degrees % 360;
    return OK;
}

status_t GonkRecorder::setParamMaxFileDurationUs(int64_t timeUs) {
    RE_LOGV("setParamMaxFileDurationUs: %lld us", timeUs);

    // This is meant for backward compatibility for MediaRecorder.java
    if (timeUs <= 0) {
        RE_LOGW("Max file duration is not positive: %lld us. Disabling duration limit.", timeUs);
        timeUs = 0; // Disable the duration limit for zero or negative values.
    } else if (timeUs <= 100000LL) {  // XXX: 100 milli-seconds
        RE_LOGE("Max file duration is too short: %lld us", timeUs);
        return BAD_VALUE;
    }

    if (timeUs <= 15 * 1000000LL) {
        RE_LOGW("Target duration (%lld us) too short to be respected", timeUs);
    }
    mMaxFileDurationUs = timeUs;
    return OK;
}

status_t GonkRecorder::setParamMaxFileSizeBytes(int64_t bytes) {
    RE_LOGV("setParamMaxFileSizeBytes: %lld bytes", bytes);

    // This is meant for backward compatibility for MediaRecorder.java
    if (bytes <= 0) {
        RE_LOGW("Max file size is not positive: %lld bytes. "
             "Disabling file size limit.", bytes);
        bytes = 0; // Disable the file size limit for zero or negative values.
    } else if (bytes <= 1024) {  // XXX: 1 kB
        RE_LOGE("Max file size is too small: %lld bytes", bytes);
        return BAD_VALUE;
    }

    if (bytes <= 100 * 1024) {
        RE_LOGW("Target file size (%lld bytes) is too small to be respected", bytes);
    }

    if (bytes >= 0xffffffffLL) {
        RE_LOGW("Target file size (%lld bytes) too large to be respected, clipping to 4GB", bytes);
        bytes = 0xffffffffLL;
    }

    mMaxFileSizeBytes = bytes;
    return OK;
}

status_t GonkRecorder::setParamInterleaveDuration(int32_t durationUs) {
    RE_LOGV("setParamInterleaveDuration: %d", durationUs);
    if (durationUs <= 500000) {           //  500 ms
        // If interleave duration is too small, it is very inefficient to do
        // interleaving since the metadata overhead will count for a significant
        // portion of the saved contents
        RE_LOGE("Audio/video interleave duration is too small: %d us", durationUs);
        return BAD_VALUE;
    } else if (durationUs >= 10000000) {  // 10 seconds
        // If interleaving duration is too large, it can cause the recording
        // session to use too much memory since we have to save the output
        // data before we write them out
        RE_LOGE("Audio/video interleave duration is too large: %d us", durationUs);
        return BAD_VALUE;
    }
    mInterleaveDurationUs = durationUs;
    return OK;
}

// If seconds <  0, only the first frame is I frame, and rest are all P frames
// If seconds == 0, all frames are encoded as I frames. No P frames
// If seconds >  0, it is the time spacing (seconds) between 2 neighboring I frames
status_t GonkRecorder::setParamVideoIFramesInterval(int32_t seconds) {
    RE_LOGV("setParamVideoIFramesInterval: %d seconds", seconds);
    mIFramesIntervalSec = seconds;
    return OK;
}

status_t GonkRecorder::setParam64BitFileOffset(bool use64Bit) {
    RE_LOGV("setParam64BitFileOffset: %s",
        use64Bit? "use 64 bit file offset": "use 32 bit file offset");
    mUse64BitFileOffset = use64Bit;
    return OK;
}

status_t GonkRecorder::setParamVideoCameraId(int32_t cameraId) {
    RE_LOGV("setParamVideoCameraId: %d", cameraId);
    if (cameraId < 0) {
        return BAD_VALUE;
    }
    mCameraId = cameraId;
    return OK;
}

status_t GonkRecorder::setParamTrackTimeStatus(int64_t timeDurationUs) {
    RE_LOGV("setParamTrackTimeStatus: %lld", timeDurationUs);
    if (timeDurationUs < 20000) {  // Infeasible if shorter than 20 ms?
        RE_LOGE("Tracking time duration too short: %lld us", timeDurationUs);
        return BAD_VALUE;
    }
    mTrackEveryTimeDurationUs = timeDurationUs;
    return OK;
}

status_t GonkRecorder::setParamVideoEncoderProfile(int32_t profile) {
    RE_LOGV("setParamVideoEncoderProfile: %d", profile);

    // Additional check will be done later when we load the encoder.
    // For now, we are accepting values defined in OpenMAX IL.
    mVideoEncoderProfile = profile;
    return OK;
}

status_t GonkRecorder::setParamVideoEncoderLevel(int32_t level) {
    RE_LOGV("setParamVideoEncoderLevel: %d", level);

    // Additional check will be done later when we load the encoder.
    // For now, we are accepting values defined in OpenMAX IL.
    mVideoEncoderLevel = level;
    return OK;
}

status_t GonkRecorder::setParamMovieTimeScale(int32_t timeScale) {
    RE_LOGV("setParamMovieTimeScale: %d", timeScale);

    // The range is set to be the same as the audio's time scale range
    // since audio's time scale has a wider range.
    if (timeScale < 600 || timeScale > 96000) {
        RE_LOGE("Time scale (%d) for movie is out of range [600, 96000]", timeScale);
        return BAD_VALUE;
    }
    mMovieTimeScale = timeScale;
    return OK;
}

status_t GonkRecorder::setParamVideoTimeScale(int32_t timeScale) {
    RE_LOGV("setParamVideoTimeScale: %d", timeScale);

    // 60000 is chosen to make sure that each video frame from a 60-fps
    // video has 1000 ticks.
    if (timeScale < 600 || timeScale > 60000) {
        RE_LOGE("Time scale (%d) for video is out of range [600, 60000]", timeScale);
        return BAD_VALUE;
    }
    mVideoTimeScale = timeScale;
    return OK;
}

status_t GonkRecorder::setParamAudioTimeScale(int32_t timeScale) {
    RE_LOGV("setParamAudioTimeScale: %d", timeScale);

    // 96000 Hz is the highest sampling rate support in AAC.
    if (timeScale < 600 || timeScale > 96000) {
        RE_LOGE("Time scale (%d) for audio is out of range [600, 96000]", timeScale);
        return BAD_VALUE;
    }
    mAudioTimeScale = timeScale;
    return OK;
}

status_t GonkRecorder::setParamGeoDataLongitude(
    int64_t longitudex10000) {

    if (longitudex10000 > 1800000 || longitudex10000 < -1800000) {
        return BAD_VALUE;
    }
    mLongitudex10000 = longitudex10000;
    return OK;
}

status_t GonkRecorder::setParamGeoDataLatitude(
    int64_t latitudex10000) {

    if (latitudex10000 > 900000 || latitudex10000 < -900000) {
        return BAD_VALUE;
    }
    mLatitudex10000 = latitudex10000;
    return OK;
}

status_t GonkRecorder::setParameter(
        const String8 &key, const String8 &value) {
    RE_LOGV("setParameter: key (%s) => value (%s)", key.string(), value.string());
    if (key == "max-duration") {
        int64_t max_duration_ms;
        if (safe_strtoi64(value.string(), &max_duration_ms)) {
            return setParamMaxFileDurationUs(1000LL * max_duration_ms);
        }
    } else if (key == "max-filesize") {
        int64_t max_filesize_bytes;
        if (safe_strtoi64(value.string(), &max_filesize_bytes)) {
            return setParamMaxFileSizeBytes(max_filesize_bytes);
        }
    } else if (key == "interleave-duration-us") {
        int32_t durationUs;
        if (safe_strtoi32(value.string(), &durationUs)) {
            return setParamInterleaveDuration(durationUs);
        }
    } else if (key == "param-movie-time-scale") {
        int32_t timeScale;
        if (safe_strtoi32(value.string(), &timeScale)) {
            return setParamMovieTimeScale(timeScale);
        }
    } else if (key == "param-use-64bit-offset") {
        int32_t use64BitOffset;
        if (safe_strtoi32(value.string(), &use64BitOffset)) {
            return setParam64BitFileOffset(use64BitOffset != 0);
        }
    } else if (key == "param-geotag-longitude") {
        int64_t longitudex10000;
        if (safe_strtoi64(value.string(), &longitudex10000)) {
            return setParamGeoDataLongitude(longitudex10000);
        }
    } else if (key == "param-geotag-latitude") {
        int64_t latitudex10000;
        if (safe_strtoi64(value.string(), &latitudex10000)) {
            return setParamGeoDataLatitude(latitudex10000);
        }
    } else if (key == "param-track-time-status") {
        int64_t timeDurationUs;
        if (safe_strtoi64(value.string(), &timeDurationUs)) {
            return setParamTrackTimeStatus(timeDurationUs);
        }
    } else if (key == "audio-param-sampling-rate") {
        int32_t sampling_rate;
        if (safe_strtoi32(value.string(), &sampling_rate)) {
            return setParamAudioSamplingRate(sampling_rate);
        }
    } else if (key == "audio-param-number-of-channels") {
        int32_t number_of_channels;
        if (safe_strtoi32(value.string(), &number_of_channels)) {
            return setParamAudioNumberOfChannels(number_of_channels);
        }
    } else if (key == "audio-param-encoding-bitrate") {
        int32_t audio_bitrate;
        if (safe_strtoi32(value.string(), &audio_bitrate)) {
            return setParamAudioEncodingBitRate(audio_bitrate);
        }
    } else if (key == "audio-param-time-scale") {
        int32_t timeScale;
        if (safe_strtoi32(value.string(), &timeScale)) {
            return setParamAudioTimeScale(timeScale);
        }
    } else if (key == "video-param-encoding-bitrate") {
        int32_t video_bitrate;
        if (safe_strtoi32(value.string(), &video_bitrate)) {
            return setParamVideoEncodingBitRate(video_bitrate);
        }
    } else if (key == "video-param-rotation-angle-degrees") {
        int32_t degrees;
        if (safe_strtoi32(value.string(), &degrees)) {
            return setParamVideoRotation(degrees);
        }
    } else if (key == "video-param-i-frames-interval") {
        int32_t seconds;
        if (safe_strtoi32(value.string(), &seconds)) {
            return setParamVideoIFramesInterval(seconds);
        }
    } else if (key == "video-param-encoder-profile") {
        int32_t profile;
        if (safe_strtoi32(value.string(), &profile)) {
            return setParamVideoEncoderProfile(profile);
        }
    } else if (key == "video-param-encoder-level") {
        int32_t level;
        if (safe_strtoi32(value.string(), &level)) {
            return setParamVideoEncoderLevel(level);
        }
    } else if (key == "video-param-camera-id") {
        int32_t cameraId;
        if (safe_strtoi32(value.string(), &cameraId)) {
            return setParamVideoCameraId(cameraId);
        }
    } else if (key == "video-param-time-scale") {
        int32_t timeScale;
        if (safe_strtoi32(value.string(), &timeScale)) {
            return setParamVideoTimeScale(timeScale);
        }
    } else {
        RE_LOGE("setParameter: failed to find key %s", key.string());
    }
    return BAD_VALUE;
}

status_t GonkRecorder::setParameters(const String8 &params) {
    RE_LOGV("setParameters: %s", params.string());
    const char *cparams = params.string();
    const char *key_start = cparams;
    for (;;) {
        const char *equal_pos = strchr(key_start, '=');
        if (equal_pos == NULL) {
            RE_LOGE("Parameters %s miss a value", cparams);
            return BAD_VALUE;
        }
        String8 key(key_start, equal_pos - key_start);
        TrimString(&key);
        if (key.length() == 0) {
            RE_LOGE("Parameters %s contains an empty key", cparams);
            return BAD_VALUE;
        }
        const char *value_start = equal_pos + 1;
        const char *semicolon_pos = strchr(value_start, ';');
        String8 value;
        if (semicolon_pos == NULL) {
            value.setTo(value_start);
        } else {
            value.setTo(value_start, semicolon_pos - value_start);
        }
        if (setParameter(key, value) != OK) {
            return BAD_VALUE;
        }
        if (semicolon_pos == NULL) {
            break;  // Reaches the end
        }
        key_start = semicolon_pos + 1;
    }
    return OK;
}

status_t GonkRecorder::setListener(const sp<IMediaRecorderClient> &listener) {
    mListener = listener;

    return OK;
}

status_t GonkRecorder::setClientName(const String16& clientName) {
    mClientName = clientName;

    return OK;
}

status_t GonkRecorder::prepare() {
    if (mVideoSource != VIDEO_SOURCE_LIST_END && mVideoEncoder != VIDEO_ENCODER_LIST_END &&
        mVideoHeight && mVideoWidth &&  // Video recording
        (mVideoHeight * mVideoWidth >= RES_720P)) {
        // TODO: Above check needs to be updated when mMaxFileDurationUs is set from camera app
        RE_LOGV("Video is high resolution so setting 64-bit file offsets");
        setParam64BitFileOffset(true);
    }
    return OK;
}

status_t GonkRecorder::start() {
    CHECK_GE(mOutputFd, 0);

    // Get UID here for permission checking
    mClientUid = IPCThreadState::self()->getCallingUid();
    if (mWriter != NULL) {
        RE_LOGE("File writer is not avaialble");
        return UNKNOWN_ERROR;
    }

    status_t status = OK;

    switch (mOutputFormat) {
        case OUTPUT_FORMAT_DEFAULT:
        case OUTPUT_FORMAT_THREE_GPP:
        case OUTPUT_FORMAT_MPEG_4:
            status = startMPEG4Recording();
            break;

        case OUTPUT_FORMAT_AMR_NB:
        case OUTPUT_FORMAT_AMR_WB:
            status = startAMRRecording();
            break;

#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
        case OUTPUT_FORMAT_AAC_ADIF:
        case OUTPUT_FORMAT_AAC_ADTS:
            status = startAACRecording();
            break;
#endif

        case OUTPUT_FORMAT_RTP_AVP:
            status = startRTPRecording();
            break;

        case OUTPUT_FORMAT_MPEG2TS:
            status = startMPEG2TSRecording();
            break;

        default:
            RE_LOGE("Unsupported output file format: %d", mOutputFormat);
            status = UNKNOWN_ERROR;
            break;
    }

    if ((status == OK) && (!mStarted)) {
        mStarted = true;
    }

    return status;
}

#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 21
sp<MediaSource> GonkRecorder::createAudioSource() {
    sp<AudioSource> audioSource =
        new AudioSource(
                mAudioSource,
                mSampleRate,
                mAudioChannels);

    status_t err = audioSource->initCheck();

    if (err != OK) {
        RE_LOGE("audio source is not initialized");
        return NULL;
    }

    sp<AMessage> format = new AMessage;
    switch (mAudioEncoder) {
        case AUDIO_ENCODER_AMR_NB:
        case AUDIO_ENCODER_DEFAULT:
            format->setString("mime", MEDIA_MIMETYPE_AUDIO_AMR_NB);
            break;
        case AUDIO_ENCODER_AMR_WB:
            format->setString("mime", MEDIA_MIMETYPE_AUDIO_AMR_WB);
            break;
        case AUDIO_ENCODER_AAC:
            format->setString("mime", MEDIA_MIMETYPE_AUDIO_AAC);
            format->setInt32("aac-profile", OMX_AUDIO_AACObjectLC);
            break;
        case AUDIO_ENCODER_HE_AAC:
            format->setString("mime", MEDIA_MIMETYPE_AUDIO_AAC);
            format->setInt32("aac-profile", OMX_AUDIO_AACObjectHE);
            break;
        case AUDIO_ENCODER_AAC_ELD:
            format->setString("mime", MEDIA_MIMETYPE_AUDIO_AAC);
            format->setInt32("aac-profile", OMX_AUDIO_AACObjectELD);
            break;

        default:
            RE_LOGE("Unknown audio encoder: %d", mAudioEncoder);
            return NULL;
    }

    int32_t maxInputSize;
    CHECK(audioSource->getFormat()->findInt32(
                kKeyMaxInputSize, &maxInputSize));

    format->setInt32("max-input-size", maxInputSize);
    format->setInt32("channel-count", mAudioChannels);
    format->setInt32("sample-rate", mSampleRate);
    format->setInt32("bitrate", mAudioBitRate);
    if (mAudioTimeScale > 0) {
        format->setInt32("time-scale", mAudioTimeScale);
    }

    sp<MediaSource> audioEncoder =
            MediaCodecSource::Create(mLooper, format, audioSource);
    mAudioSourceNode = audioSource;

    if (audioEncoder == NULL) {
        RE_LOGE("Failed to create audio encoder");
    }

    return audioEncoder;
}
#else
sp<MediaSource> GonkRecorder::createAudioSource() {
    sp<AudioSource> audioSource =
        new AudioSource(
                mAudioSource,
                mSampleRate,
                mAudioChannels);

    status_t err = audioSource->initCheck();

    if (err != OK) {
        RE_LOGE("audio source is not initialized");
        return NULL;
    }

    sp<MetaData> encMeta = new MetaData;
    const char *mime;
    switch (mAudioEncoder) {
        case AUDIO_ENCODER_AMR_NB:
        case AUDIO_ENCODER_DEFAULT:
            mime = MEDIA_MIMETYPE_AUDIO_AMR_NB;
            break;
        case AUDIO_ENCODER_AMR_WB:
            mime = MEDIA_MIMETYPE_AUDIO_AMR_WB;
            break;
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
        case AUDIO_ENCODER_AAC:
            mime = MEDIA_MIMETYPE_AUDIO_AAC;
            encMeta->setInt32(kKeyAACProfile, OMX_AUDIO_AACObjectLC);
            break;
        case AUDIO_ENCODER_HE_AAC:
            mime = MEDIA_MIMETYPE_AUDIO_AAC;
            encMeta->setInt32(kKeyAACProfile, OMX_AUDIO_AACObjectHE);
            break;
        case AUDIO_ENCODER_AAC_ELD:
            mime = MEDIA_MIMETYPE_AUDIO_AAC;
            encMeta->setInt32(kKeyAACProfile, OMX_AUDIO_AACObjectELD);
            break;
#endif
        default:
            RE_LOGE("Unknown audio encoder: %d", mAudioEncoder);
            return NULL;
    }
    encMeta->setCString(kKeyMIMEType, mime);

    int32_t maxInputSize;
    CHECK(audioSource->getFormat()->findInt32(
                kKeyMaxInputSize, &maxInputSize));

    encMeta->setInt32(kKeyMaxInputSize, maxInputSize);
    encMeta->setInt32(kKeyChannelCount, mAudioChannels);
    encMeta->setInt32(kKeySampleRate, mSampleRate);
    encMeta->setInt32(kKeyBitRate, mAudioBitRate);
    if (mAudioTimeScale > 0) {
        encMeta->setInt32(kKeyTimeScale, mAudioTimeScale);
    }

    // OMXClient::connect() always returns OK and abort's fatally if
    // it can't connect.
    OMXClient client;
    // CHECK_EQ causes an abort if the given condition fails.
    CHECK_EQ(client.connect(), (status_t)OK);
    sp<MediaSource> audioEncoder =
        OMXCodec::Create(client.interface(), encMeta,
                         true /* createEncoder */, audioSource);
    mAudioSourceNode = audioSource;

    return audioEncoder;
}
#endif

#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
status_t GonkRecorder::startAACRecording() {
    // FIXME:
    // Add support for OUTPUT_FORMAT_AAC_ADIF
    CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_AAC_ADTS);

    CHECK(mAudioEncoder == AUDIO_ENCODER_AAC ||
          mAudioEncoder == AUDIO_ENCODER_HE_AAC ||
          mAudioEncoder == AUDIO_ENCODER_AAC_ELD);
    CHECK(mAudioSource != AUDIO_SOURCE_CNT);

    mWriter = new AACWriter(mOutputFd);
    status_t status = startRawAudioRecording();
    if (status != OK) {
        mWriter.clear();
        mWriter = NULL;
    }

    return status;
}
#endif

status_t GonkRecorder::startAMRRecording() {
    CHECK(mOutputFormat == OUTPUT_FORMAT_AMR_NB ||
          mOutputFormat == OUTPUT_FORMAT_AMR_WB);

    if (mOutputFormat == OUTPUT_FORMAT_AMR_NB) {
        if (mAudioEncoder != AUDIO_ENCODER_DEFAULT &&
            mAudioEncoder != AUDIO_ENCODER_AMR_NB) {
            RE_LOGE("Invalid encoder %d used for AMRNB recording",
                    mAudioEncoder);
            return BAD_VALUE;
        }
    } else {  // mOutputFormat must be OUTPUT_FORMAT_AMR_WB
        if (mAudioEncoder != AUDIO_ENCODER_AMR_WB) {
            RE_LOGE("Invlaid encoder %d used for AMRWB recording",
                    mAudioEncoder);
            return BAD_VALUE;
        }
    }

    mWriter = new AMRWriter(mOutputFd);
    status_t status = startRawAudioRecording();
    if (status != OK) {
        mWriter.clear();
        mWriter = NULL;
    }
    return status;
}

status_t GonkRecorder::startRawAudioRecording() {
    if (mAudioSource >= AUDIO_SOURCE_CNT) {
        RE_LOGE("Invalid audio source: %d", mAudioSource);
        return BAD_VALUE;
    }

    status_t status = BAD_VALUE;
    if (OK != (status = checkAudioEncoderCapabilities())) {
        return status;
    }

    sp<MediaSource> audioEncoder = createAudioSource();
    if (audioEncoder == NULL) {
        return UNKNOWN_ERROR;
    }

    CHECK(mWriter != 0);
    mWriter->addSource(audioEncoder);

    if (mMaxFileDurationUs != 0) {
        mWriter->setMaxFileDuration(mMaxFileDurationUs);
    }
    if (mMaxFileSizeBytes != 0) {
        mWriter->setMaxFileSize(mMaxFileSizeBytes);
    }
    mWriter->setListener(mListener);
    mWriter->start();

    return OK;
}

status_t GonkRecorder::startRTPRecording() {
    return INVALID_OPERATION;
}

status_t GonkRecorder::startMPEG2TSRecording() {
    CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_MPEG2TS);

    sp<MediaWriter> writer = new MPEG2TSWriter(mOutputFd);

    if (mAudioSource != AUDIO_SOURCE_CNT) {
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
        if (mAudioEncoder != AUDIO_ENCODER_AAC &&
            mAudioEncoder != AUDIO_ENCODER_HE_AAC &&
            mAudioEncoder != AUDIO_ENCODER_AAC_ELD) {
            return ERROR_UNSUPPORTED;
        }
#endif
        status_t err = setupAudioEncoder(writer);

        if (err != OK) {
            return err;
        }
    }

    if (mVideoSource < VIDEO_SOURCE_LIST_END) {
        if (mVideoEncoder != VIDEO_ENCODER_H264) {
            return ERROR_UNSUPPORTED;
        }

        sp<MediaSource> mediaSource;
        status_t err = setupMediaSource(&mediaSource);
        if (err != OK) {
            return err;
        }

        sp<MediaSource> encoder;
        err = setupVideoEncoder(mediaSource, mVideoBitRate, &encoder);

        if (err != OK) {
            return err;
        }

        writer->addSource(encoder);
    }

    if (mMaxFileDurationUs != 0) {
        writer->setMaxFileDuration(mMaxFileDurationUs);
    }

    if (mMaxFileSizeBytes != 0) {
        writer->setMaxFileSize(mMaxFileSizeBytes);
    }

    mWriter = writer;

    return mWriter->start();
}

void GonkRecorder::clipVideoFrameRate() {
    RE_LOGV("clipVideoFrameRate: encoder %d", mVideoEncoder);
    int minFrameRate = mEncoderProfiles->getVideoEncoderParamByName(
                        "enc.vid.fps.min", mVideoEncoder);
    int maxFrameRate = mEncoderProfiles->getVideoEncoderParamByName(
                        "enc.vid.fps.max", mVideoEncoder);
    if (mFrameRate < minFrameRate && minFrameRate != -1) {
        RE_LOGW("Intended video encoding frame rate (%d fps) is too small"
             " and will be set to (%d fps)", mFrameRate, minFrameRate);
        mFrameRate = minFrameRate;
    } else if (mFrameRate > maxFrameRate && maxFrameRate != -1) {
        RE_LOGW("Intended video encoding frame rate (%d fps) is too large"
             " and will be set to (%d fps)", mFrameRate, maxFrameRate);
        mFrameRate = maxFrameRate;
    }
}

void GonkRecorder::clipVideoBitRate() {
    RE_LOGV("clipVideoBitRate: encoder %d", mVideoEncoder);
    int minBitRate = mEncoderProfiles->getVideoEncoderParamByName(
                        "enc.vid.bps.min", mVideoEncoder);
    int maxBitRate = mEncoderProfiles->getVideoEncoderParamByName(
                        "enc.vid.bps.max", mVideoEncoder);
    if (mVideoBitRate < minBitRate && minBitRate != -1) {
        RE_LOGW("Intended video encoding bit rate (%d bps) is too small"
             " and will be set to (%d bps)", mVideoBitRate, minBitRate);
        mVideoBitRate = minBitRate;
    } else if (mVideoBitRate > maxBitRate && maxBitRate != -1) {
        RE_LOGW("Intended video encoding bit rate (%d bps) is too large"
             " and will be set to (%d bps)", mVideoBitRate, maxBitRate);
        mVideoBitRate = maxBitRate;
    }
}

void GonkRecorder::clipVideoFrameWidth() {
    RE_LOGV("clipVideoFrameWidth: encoder %d", mVideoEncoder);
    int minFrameWidth = mEncoderProfiles->getVideoEncoderParamByName(
                        "enc.vid.width.min", mVideoEncoder);
    int maxFrameWidth = mEncoderProfiles->getVideoEncoderParamByName(
                        "enc.vid.width.max", mVideoEncoder);
    if (mVideoWidth < minFrameWidth && minFrameWidth != -1) {
        RE_LOGW("Intended video encoding frame width (%d) is too small"
             " and will be set to (%d)", mVideoWidth, minFrameWidth);
        mVideoWidth = minFrameWidth;
    } else if (mVideoWidth > maxFrameWidth && maxFrameWidth != -1) {
        RE_LOGW("Intended video encoding frame width (%d) is too large"
             " and will be set to (%d)", mVideoWidth, maxFrameWidth);
        mVideoWidth = maxFrameWidth;
    }
}

status_t GonkRecorder::checkVideoEncoderCapabilities() {

    // Dont clip for time lapse capture as encoder will have enough
    // time to encode because of slow capture rate of time lapse.
    clipVideoBitRate();
    clipVideoFrameRate();
    clipVideoFrameWidth();
    clipVideoFrameHeight();
    setDefaultProfileIfNecessary();
    return OK;
}

// Set to use AVC baseline profile if the encoding parameters matches
// CAMCORDER_QUALITY_LOW profile; this is for the sake of MMS service.
void GonkRecorder::setDefaultProfileIfNecessary() {
    RE_LOGV("setDefaultProfileIfNecessary");

    camcorder_quality quality = CAMCORDER_QUALITY_LOW;

    int64_t durationUs   = mEncoderProfiles->getCamcorderProfileParamByName(
                                "duration", mCameraId, quality) * 1000000LL;

    int fileFormat       = mEncoderProfiles->getCamcorderProfileParamByName(
                                "file.format", mCameraId, quality);

    int videoCodec       = mEncoderProfiles->getCamcorderProfileParamByName(
                                "vid.codec", mCameraId, quality);

    int videoBitRate     = mEncoderProfiles->getCamcorderProfileParamByName(
                                "vid.bps", mCameraId, quality);

    int videoFrameRate   = mEncoderProfiles->getCamcorderProfileParamByName(
                                "vid.fps", mCameraId, quality);

    int videoFrameWidth  = mEncoderProfiles->getCamcorderProfileParamByName(
                                "vid.width", mCameraId, quality);

    int videoFrameHeight = mEncoderProfiles->getCamcorderProfileParamByName(
                                "vid.height", mCameraId, quality);

    int audioCodec       = mEncoderProfiles->getCamcorderProfileParamByName(
                                "aud.codec", mCameraId, quality);

    int audioBitRate     = mEncoderProfiles->getCamcorderProfileParamByName(
                                "aud.bps", mCameraId, quality);

    int audioSampleRate  = mEncoderProfiles->getCamcorderProfileParamByName(
                                "aud.hz", mCameraId, quality);

    int audioChannels    = mEncoderProfiles->getCamcorderProfileParamByName(
                                "aud.ch", mCameraId, quality);

    if (durationUs == mMaxFileDurationUs &&
        fileFormat == mOutputFormat &&
        videoCodec == mVideoEncoder &&
        videoBitRate == mVideoBitRate &&
        videoFrameRate == mFrameRate &&
        videoFrameWidth == mVideoWidth &&
        videoFrameHeight == mVideoHeight &&
        audioCodec == mAudioEncoder &&
        audioBitRate == mAudioBitRate &&
        audioSampleRate == mSampleRate &&
        audioChannels == mAudioChannels) {
        if (videoCodec == VIDEO_ENCODER_H264) {
            RE_LOGI("Force to use AVC baseline profile");
            setParamVideoEncoderProfile(OMX_VIDEO_AVCProfileBaseline);
        }
    }
}

status_t GonkRecorder::checkAudioEncoderCapabilities() {
    clipAudioBitRate();
    clipAudioSampleRate();
    clipNumberOfAudioChannels();
    return OK;
}

void GonkRecorder::clipAudioBitRate() {
    RE_LOGV("clipAudioBitRate: encoder %d", mAudioEncoder);

    int minAudioBitRate =
            mEncoderProfiles->getAudioEncoderParamByName(
                "enc.aud.bps.min", mAudioEncoder);
    if (minAudioBitRate != -1 && mAudioBitRate < minAudioBitRate) {
        RE_LOGW("Intended audio encoding bit rate (%d) is too small"
            " and will be set to (%d)", mAudioBitRate, minAudioBitRate);
        mAudioBitRate = minAudioBitRate;
    }

    int maxAudioBitRate =
            mEncoderProfiles->getAudioEncoderParamByName(
                "enc.aud.bps.max", mAudioEncoder);
    if (maxAudioBitRate != -1 && mAudioBitRate > maxAudioBitRate) {
        RE_LOGW("Intended audio encoding bit rate (%d) is too large"
            " and will be set to (%d)", mAudioBitRate, maxAudioBitRate);
        mAudioBitRate = maxAudioBitRate;
    }
}

void GonkRecorder::clipAudioSampleRate() {
    RE_LOGV("clipAudioSampleRate: encoder %d", mAudioEncoder);

    int minSampleRate =
            mEncoderProfiles->getAudioEncoderParamByName(
                "enc.aud.hz.min", mAudioEncoder);
    if (minSampleRate != -1 && mSampleRate < minSampleRate) {
        RE_LOGW("Intended audio sample rate (%d) is too small"
            " and will be set to (%d)", mSampleRate, minSampleRate);
        mSampleRate = minSampleRate;
    }

    int maxSampleRate =
            mEncoderProfiles->getAudioEncoderParamByName(
                "enc.aud.hz.max", mAudioEncoder);
    if (maxSampleRate != -1 && mSampleRate > maxSampleRate) {
        RE_LOGW("Intended audio sample rate (%d) is too large"
            " and will be set to (%d)", mSampleRate, maxSampleRate);
        mSampleRate = maxSampleRate;
    }
}

void GonkRecorder::clipNumberOfAudioChannels() {
    RE_LOGV("clipNumberOfAudioChannels: encoder %d", mAudioEncoder);

    int minChannels =
            mEncoderProfiles->getAudioEncoderParamByName(
                "enc.aud.ch.min", mAudioEncoder);
    if (minChannels != -1 && mAudioChannels < minChannels) {
        RE_LOGW("Intended number of audio channels (%d) is too small"
            " and will be set to (%d)", mAudioChannels, minChannels);
        mAudioChannels = minChannels;
    }

    int maxChannels =
            mEncoderProfiles->getAudioEncoderParamByName(
                "enc.aud.ch.max", mAudioEncoder);
    if (maxChannels != -1 && mAudioChannels > maxChannels) {
        RE_LOGW("Intended number of audio channels (%d) is too large"
            " and will be set to (%d)", mAudioChannels, maxChannels);
        mAudioChannels = maxChannels;
    }
}

void GonkRecorder::clipVideoFrameHeight() {
    RE_LOGV("clipVideoFrameHeight: encoder %d", mVideoEncoder);
    int minFrameHeight = mEncoderProfiles->getVideoEncoderParamByName(
                        "enc.vid.height.min", mVideoEncoder);
    int maxFrameHeight = mEncoderProfiles->getVideoEncoderParamByName(
                        "enc.vid.height.max", mVideoEncoder);
    if (minFrameHeight != -1 && mVideoHeight < minFrameHeight) {
        RE_LOGW("Intended video encoding frame height (%d) is too small"
             " and will be set to (%d)", mVideoHeight, minFrameHeight);
        mVideoHeight = minFrameHeight;
    } else if (maxFrameHeight != -1 && mVideoHeight > maxFrameHeight) {
        RE_LOGW("Intended video encoding frame height (%d) is too large"
             " and will be set to (%d)", mVideoHeight, maxFrameHeight);
        mVideoHeight = maxFrameHeight;
    }
}

// Set up the appropriate MediaSource depending on the chosen option
status_t GonkRecorder::setupMediaSource(
                      sp<MediaSource> *mediaSource) {
    if (mVideoSource == VIDEO_SOURCE_DEFAULT
            || mVideoSource == VIDEO_SOURCE_CAMERA) {
        sp<GonkCameraSource> cameraSource;
        status_t err = setupCameraSource(&cameraSource);
        if (err != OK) {
            return err;
        }
        *mediaSource = cameraSource;
#if ANDROID_VERSION >= 21
    } else if (mVideoSource == VIDEO_SOURCE_SURFACE) {
#else
    } else if (mVideoSource == VIDEO_SOURCE_GRALLOC_BUFFER) {
#endif
        return BAD_VALUE;
    } else {
        return INVALID_OPERATION;
    }
    return OK;
}

status_t GonkRecorder::setupCameraSource(
        sp<GonkCameraSource> *cameraSource) {
    status_t err = OK;
    if ((err = checkVideoEncoderCapabilities()) != OK) {
        return err;
    }
    Size videoSize;
    videoSize.width = mVideoWidth;
    videoSize.height = mVideoHeight;
    bool useMeta = true;
    char value[PROPERTY_VALUE_MAX];
    if (property_get("debug.camcorder.disablemeta", value, NULL) &&
            atoi(value)) {
      useMeta = false;
    }

    *cameraSource = GonkCameraSource::Create(
                mCameraHw, videoSize, mFrameRate, useMeta);
    if (*cameraSource == NULL) {
        return UNKNOWN_ERROR;
    }

    if ((*cameraSource)->initCheck() != OK) {
        (*cameraSource).clear();
        *cameraSource = NULL;
        return NO_INIT;
    }

    // When frame rate is not set, the actual frame rate will be set to
    // the current frame rate being used.
    if (mFrameRate == -1) {
        int32_t frameRate = 0;
        CHECK ((*cameraSource)->getFormat()->findInt32(
                    kKeyFrameRate, &frameRate));
        RE_LOGI("Frame rate is not explicitly set. Use the current frame "
             "rate (%d fps)", frameRate);
        mFrameRate = frameRate;
    }

    CHECK(mFrameRate != -1);

    mIsMetaDataStoredInVideoBuffers =
        (*cameraSource)->isMetaDataStoredInVideoBuffers();

    return OK;
}

#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 21
status_t GonkRecorder::setupVideoEncoder(
        sp<MediaSource> cameraSource,
        int32_t videoBitRate,
        sp<MediaSource> *source) {
    source->clear();

    sp<AMessage> format = new AMessage();

    switch (mVideoEncoder) {
        case VIDEO_ENCODER_H263:
            format->setString("mime", MEDIA_MIMETYPE_VIDEO_H263);
            break;

        case VIDEO_ENCODER_MPEG_4_SP:
            format->setString("mime", MEDIA_MIMETYPE_VIDEO_MPEG4);
            break;

        case VIDEO_ENCODER_H264:
            format->setString("mime", MEDIA_MIMETYPE_VIDEO_AVC);
            break;

        case VIDEO_ENCODER_VP8:
            format->setString("mime", MEDIA_MIMETYPE_VIDEO_VP8);
            break;

        default:
            CHECK(!"Should not be here, unsupported video encoding.");
            break;
    }

    sp<MetaData> meta = cameraSource->getFormat();

    int32_t width, height, stride, sliceHeight, colorFormat;
    CHECK(meta->findInt32(kKeyWidth, &width));
    CHECK(meta->findInt32(kKeyHeight, &height));
    CHECK(meta->findInt32(kKeyStride, &stride));
    CHECK(meta->findInt32(kKeySliceHeight, &sliceHeight));
    CHECK(meta->findInt32(kKeyColorFormat, &colorFormat));

    format->setInt32("width", width);
    format->setInt32("height", height);
    format->setInt32("stride", stride);
    format->setInt32("slice-height", sliceHeight);
    format->setInt32("color-format", colorFormat);

    format->setInt32("bitrate", videoBitRate);
    format->setInt32("frame-rate", mFrameRate);
    format->setInt32("i-frame-interval", mIFramesIntervalSec);

    if (mVideoTimeScale > 0) {
        format->setInt32("time-scale", mVideoTimeScale);
    }
    if (mVideoEncoderProfile != -1) {
        format->setInt32("profile", mVideoEncoderProfile);
    }
    if (mVideoEncoderLevel != -1) {
        format->setInt32("level", mVideoEncoderLevel);
    }

    uint32_t flags = 0;
    if (mIsMetaDataStoredInVideoBuffers) {
        flags |= MediaCodecSource::FLAG_USE_METADATA_INPUT;
    }

    sp<MediaCodecSource> encoder =
            MediaCodecSource::Create(mLooper, format, cameraSource, flags);
    if (encoder == NULL) {
        RE_LOGE("Failed to create video encoder");
        // When the encoder fails to be created, we need
        // release the camera source due to the camera's lock
        // and unlock mechanism.
        cameraSource->stop();
        return UNKNOWN_ERROR;
    }

    *source = encoder;

    return OK;
}
#else
status_t GonkRecorder::setupVideoEncoder(
        sp<MediaSource> cameraSource,
        int32_t videoBitRate,
        sp<MediaSource> *source) {
    source->clear();

    sp<MetaData> enc_meta = new MetaData;
    enc_meta->setInt32(kKeyBitRate, videoBitRate);
    enc_meta->setInt32(kKeyFrameRate, mFrameRate);

    switch (mVideoEncoder) {
        case VIDEO_ENCODER_H263:
            enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
            break;

        case VIDEO_ENCODER_MPEG_4_SP:
            enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
            break;

        case VIDEO_ENCODER_H264:
            enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
            break;

        default:
            CHECK(!"Should not be here, unsupported video encoding.");
            break;
    }

    sp<MetaData> meta = cameraSource->getFormat();

    int32_t width, height, stride, sliceHeight, colorFormat;
    CHECK(meta->findInt32(kKeyWidth, &width));
    CHECK(meta->findInt32(kKeyHeight, &height));
    CHECK(meta->findInt32(kKeyStride, &stride));
    CHECK(meta->findInt32(kKeySliceHeight, &sliceHeight));
    CHECK(meta->findInt32(kKeyColorFormat, &colorFormat));

    enc_meta->setInt32(kKeyWidth, width);
    enc_meta->setInt32(kKeyHeight, height);
    enc_meta->setInt32(kKeyIFramesInterval, mIFramesIntervalSec);
    enc_meta->setInt32(kKeyStride, stride);
    enc_meta->setInt32(kKeySliceHeight, sliceHeight);
    enc_meta->setInt32(kKeyColorFormat, colorFormat);
    if (mVideoTimeScale > 0) {
        enc_meta->setInt32(kKeyTimeScale, mVideoTimeScale);
    }
    if (mVideoEncoderProfile != -1) {
        enc_meta->setInt32(kKeyVideoProfile, mVideoEncoderProfile);
    }
    if (mVideoEncoderLevel != -1) {
        enc_meta->setInt32(kKeyVideoLevel, mVideoEncoderLevel);
    }

    // OMXClient::connect() always returns OK and abort's fatally if
    // it can't connect.
    OMXClient client;
    // CHECK_EQ causes an abort if the given condition fails.
    CHECK_EQ(client.connect(), (status_t)OK);

    uint32_t encoder_flags = mCameraHw->IsEmulated()
                             ? 0
                             : OMXCodec::kHardwareCodecsOnly;
    if (mIsMetaDataStoredInVideoBuffers) {
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
        encoder_flags |= OMXCodec::kStoreMetaDataInVideoBuffers;
#else
        encoder_flags |= OMXCodec::kStoreMetaDataInVideoBuffers;
        encoder_flags |= OMXCodec::kOnlySubmitOneInputBufferAtOneTime;
#endif
    }

    sp<MediaSource> encoder = OMXCodec::Create(
            client.interface(), enc_meta,
            true /* createEncoder */, cameraSource,
            NULL, encoder_flags);
    if (encoder == NULL) {
        RE_LOGW("Failed to create the encoder");
        // When the encoder fails to be created, we need
        // release the camera source due to the camera's lock
        // and unlock mechanism.
        cameraSource->stop();
        return UNKNOWN_ERROR;
    }

    *source = encoder;

    return OK;
}
#endif

status_t GonkRecorder::setupAudioEncoder(const sp<MediaWriter>& writer) {
    status_t status = BAD_VALUE;
    if (OK != (status = checkAudioEncoderCapabilities())) {
        return status;
    }

    switch(mAudioEncoder) {
        case AUDIO_ENCODER_AMR_NB:
        case AUDIO_ENCODER_AMR_WB:
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
        case AUDIO_ENCODER_AAC:
        case AUDIO_ENCODER_HE_AAC:
        case AUDIO_ENCODER_AAC_ELD:
#endif
            break;

        default:
            RE_LOGE("Unsupported audio encoder: %d", mAudioEncoder);
            return UNKNOWN_ERROR;
    }

    sp<MediaSource> audioEncoder = createAudioSource();
    if (audioEncoder == NULL) {
        return UNKNOWN_ERROR;
    }

    writer->addSource(audioEncoder);
    return OK;
}

status_t GonkRecorder::setupMPEG4Recording(
        int outputFd,
        int32_t videoWidth, int32_t videoHeight,
        int32_t videoBitRate,
        int32_t *totalBitRate,
        sp<MediaWriter> *mediaWriter,
        sp<WrappedMediaSource> *mediaSource) {
    mediaWriter->clear();
    *totalBitRate = 0;
    status_t err = OK;
    sp<MediaWriter> writer = new MPEG4Writer(outputFd);
    sp<WrappedMediaSource> writerSource;

    if (mVideoSource < VIDEO_SOURCE_LIST_END) {

        sp<MediaSource> mediaSource;
        err = setupMediaSource(&mediaSource);
        if (err != OK) {
            return err;
        }

        sp<MediaSource> encoder;
        err = setupVideoEncoder(mediaSource, videoBitRate, &encoder);
        if (err != OK) {
            return err;
        }

        sp<GonkCameraSource> cameraSource = reinterpret_cast<GonkCameraSource *>(mediaSource.get());
        writerSource = new WrappedMediaSource(encoder);

        writer->addSource(writerSource);
        *totalBitRate += videoBitRate;
    }

    // Audio source is added at the end if it exists.
    // This help make sure that the "recoding" sound is suppressed for
    // camcorder applications in the recorded files.
    if (mAudioSource != AUDIO_SOURCE_CNT) {
        err = setupAudioEncoder(writer);
        if (err != OK) return err;
        *totalBitRate += mAudioBitRate;
    }

    if (mInterleaveDurationUs > 0) {
        reinterpret_cast<MPEG4Writer *>(writer.get())->
            setInterleaveDuration(mInterleaveDurationUs);
    }
    if (mLongitudex10000 > -3600000 && mLatitudex10000 > -3600000) {
        reinterpret_cast<MPEG4Writer *>(writer.get())->
            setGeoData(mLatitudex10000, mLongitudex10000);
    }
    if (mMaxFileDurationUs != 0) {
        writer->setMaxFileDuration(mMaxFileDurationUs);
    }
    if (mMaxFileSizeBytes != 0) {
        writer->setMaxFileSize(mMaxFileSizeBytes);
    }

    mStartTimeOffsetMs = mEncoderProfiles->getStartTimeOffsetMs(mCameraId);
    if (mStartTimeOffsetMs > 0) {
        reinterpret_cast<MPEG4Writer *>(writer.get())->
            setStartTimeOffsetMs(mStartTimeOffsetMs);
    }

    writer->setListener(mListener);
    *mediaWriter = writer;
    *mediaSource = writerSource;
    return OK;
}

void GonkRecorder::setupMPEG4MetaData(int64_t startTimeUs, int32_t totalBitRate,
        sp<MetaData> *meta) {
    (*meta)->setInt64(kKeyTime, startTimeUs);
    (*meta)->setInt32(kKeyFileType, mOutputFormat);
    (*meta)->setInt32(kKeyBitRate, totalBitRate);
    (*meta)->setInt32(kKey64BitFileOffset, mUse64BitFileOffset);
    if (mMovieTimeScale > 0) {
        (*meta)->setInt32(kKeyTimeScale, mMovieTimeScale);
    }
    if (mTrackEveryTimeDurationUs > 0) {
        (*meta)->setInt64(kKeyTrackTimeStatus, mTrackEveryTimeDurationUs);
    }

    char value[PROPERTY_VALUE_MAX];
    if (property_get("debug.camcorder.rotation", value, 0) > 0 && atoi(value) >= 0) {
        mRotationDegrees = atoi(value);
        RE_LOGI("Setting rotation to %d", mRotationDegrees );
    }

    if (mRotationDegrees != 0) {
        (*meta)->setInt32(kKeyRotation, mRotationDegrees);
    }
}

status_t GonkRecorder::startMPEG4Recording() {
    int32_t totalBitRate;
    status_t err = setupMPEG4Recording(
            mOutputFd, mVideoWidth, mVideoHeight,
            mVideoBitRate, &totalBitRate, &mWriter,
            &mWriterSource);
    if (err != OK) {
        return err;
    }

    //systemTime() doesn't give correct time because
    //HAVE_POSIX_CLOCKS is not defined for utils/Timers.cpp
    //so, using clock_gettime directly
#include <time.h>
    struct timespec t;
    clock_gettime(CLOCK_MONOTONIC, &t);
    int64_t startTimeUs = int64_t(t.tv_sec)*1000000000LL + t.tv_nsec;
    startTimeUs = startTimeUs / 1000;
    sp<MetaData> meta = new MetaData;
    setupMPEG4MetaData(startTimeUs, totalBitRate, &meta);

    err = mWriter->start(meta.get());
    if (err != OK) {
        return err;
    }

    return OK;
}

status_t GonkRecorder::pause() {
    RE_LOGV("pause");
    if (mWriter == NULL) {
        return UNKNOWN_ERROR;
    }
    if (!mStarted) {
        return OK;
    }
    // Pause is not properly supported by all writers although
    // for B2G we only currently use 3GPP/MPEG4
    int err = INVALID_OPERATION;
    switch (mOutputFormat) {
        case OUTPUT_FORMAT_DEFAULT:
        case OUTPUT_FORMAT_THREE_GPP:
        case OUTPUT_FORMAT_MPEG_4:
            err = mWriter->pause();
            break;
        default:
            break;
    }
    if (err == OK) {
        mStarted = false;
    }
    return err;
}

status_t GonkRecorder::resume() {
    RE_LOGV("resume");
    if (mWriter == NULL) {
        return UNKNOWN_ERROR;
    }
    if (mStarted) {
        return OK;
    }
    /* While the writer is paused, it will continue to pull frames
       from the encoder. This ensures continuity on the timestamps of
       the encoded frames, etc. When we want to resume however, we must
       ensure that the first read frame is a key frame. */
    mWriterSource->block();
    int err = mWriter->start(NULL);
    if (err != OK) {
        return err;
    }
    err = mWriterSource->resume();
    if (err == OK) {
      mStarted = true;
    }
    return err;
}

status_t GonkRecorder::stop() {
    RE_LOGV("stop");
    status_t err = OK;

    mWriterSource.clear();
    if (mWriter != NULL) {
        err = mWriter->stop();
        mWriter.clear();
    }

    if (mOutputFd >= 0) {
        ::close(mOutputFd);
        mOutputFd = -1;
    }

    if (mStarted) {
        mStarted = false;
    }


    return err;
}

status_t GonkRecorder::close() {
    RE_LOGV("close");
    stop();

    return OK;
}

status_t GonkRecorder::reset() {
    RE_LOGV("reset");
    stop();

    // No audio or video source by default
    mAudioSource = AUDIO_SOURCE_CNT;
    mVideoSource = VIDEO_SOURCE_LIST_END;

    // Default parameters
    mOutputFormat  = OUTPUT_FORMAT_THREE_GPP;
    mAudioEncoder  = AUDIO_ENCODER_AMR_NB;
    mVideoEncoder  = VIDEO_ENCODER_H263;
    mVideoWidth    = 176;
    mVideoHeight   = 144;
    mFrameRate     = -1;
    mVideoBitRate  = 192000;
    mSampleRate    = 8000;
    mAudioChannels = 1;
    mAudioBitRate  = 12200;
    mInterleaveDurationUs = 0;
    mIFramesIntervalSec = 1;
    mAudioSourceNode = 0;
    mUse64BitFileOffset = false;
    mMovieTimeScale  = -1;
    mAudioTimeScale  = -1;
    mVideoTimeScale  = -1;
    mCameraId        = 0;
    mStartTimeOffsetMs = -1;
    mVideoEncoderProfile = -1;
    mVideoEncoderLevel   = -1;
    mMaxFileDurationUs = 0;
    mMaxFileSizeBytes = 0;
    mTrackEveryTimeDurationUs = 0;
    mIsMetaDataStoredInVideoBuffers = false;
    mEncoderProfiles = MediaProfiles::getInstance();
    mRotationDegrees = 0;
    mLatitudex10000 = -3600000;
    mLongitudex10000 = -3600000;

    mOutputFd = -1;
    mCameraHw.clear();
    //TODO: May need to register a listener eventually
    //if someone is interested in recorder events for now
    //default to no listener registered
    mListener = NULL;

    return OK;
}

status_t GonkRecorder::getMaxAmplitude(int *max) {
    RE_LOGV("getMaxAmplitude");

    if (max == NULL) {
        RE_LOGE("Null pointer argument");
        return BAD_VALUE;
    }

    if (mAudioSourceNode != 0) {
        *max = mAudioSourceNode->getMaxAmplitude();
    } else {
        *max = 0;
    }

    return OK;
}

status_t GonkRecorder::dump(
        int fd, const Vector<String16>& args) const {
    RE_LOGV("dump");
    const size_t SIZE = 256;
    char buffer[SIZE];
    String8 result;
    if (mWriter != 0) {
        mWriter->dump(fd, args);
    } else {
        snprintf(buffer, SIZE, "   No file writer\n");
        result.append(buffer);
    }
    snprintf(buffer, SIZE, "   Recorder: %p\n", this);
    snprintf(buffer, SIZE, "   Output file (fd %d):\n", mOutputFd);
    result.append(buffer);
    snprintf(buffer, SIZE, "     File format: %d\n", mOutputFormat);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Max file size (bytes): %lld\n", mMaxFileSizeBytes);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Max file duration (us): %lld\n", mMaxFileDurationUs);
    result.append(buffer);
    snprintf(buffer, SIZE, "     File offset length (bits): %d\n", mUse64BitFileOffset? 64: 32);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Interleave duration (us): %d\n", mInterleaveDurationUs);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Progress notification: %lld us\n", mTrackEveryTimeDurationUs);
    result.append(buffer);
    snprintf(buffer, SIZE, "   Audio\n");
    result.append(buffer);
    snprintf(buffer, SIZE, "     Source: %d\n", mAudioSource);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Encoder: %d\n", mAudioEncoder);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Bit rate (bps): %d\n", mAudioBitRate);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Sampling rate (hz): %d\n", mSampleRate);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Number of channels: %d\n", mAudioChannels);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Max amplitude: %d\n", mAudioSourceNode == 0? 0: mAudioSourceNode->getMaxAmplitude());
    result.append(buffer);
    snprintf(buffer, SIZE, "   Video\n");
    result.append(buffer);
    snprintf(buffer, SIZE, "     Source: %d\n", mVideoSource);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Camera Id: %d\n", mCameraId);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Camera object address: %p\n", mCameraHw.get());
    result.append(buffer);
    snprintf(buffer, SIZE, "     Start time offset (ms): %d\n", mStartTimeOffsetMs);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Encoder: %d\n", mVideoEncoder);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Encoder profile: %d\n", mVideoEncoderProfile);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Encoder level: %d\n", mVideoEncoderLevel);
    result.append(buffer);
    snprintf(buffer, SIZE, "     I frames interval (s): %d\n", mIFramesIntervalSec);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Frame size (pixels): %dx%d\n", mVideoWidth, mVideoHeight);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Frame rate (fps): %d\n", mFrameRate);
    result.append(buffer);
    snprintf(buffer, SIZE, "     Bit rate (bps): %d\n", mVideoBitRate);
    result.append(buffer);
    ::write(fd, result.string(), result.size());
    return OK;
}

status_t GonkRecorder::setCamera(const sp<GonkCameraHardware>& aCameraHw) {
  mCameraHw = aCameraHw;
  return OK;
}

}  // namespace android