Replace MidiFile player with a Midi extractor

This gets rids of a bunch of special midi handling and replaces it
with an extractor that works with NuPlayer and MediaMetadataRetriever.

Change-Id: I8d0f5bbdde2ca24267cf4d62ab26afe9630e0217

1 files changed, 0 insertions, 541 deletions

diff --git a/media/libmediaplayerservice/MidiFile.cpp b/media/libmediaplayerservice/MidiFile.cpp
deleted file mode 100644
index 205d44f..0000000
--- a/media/libmediaplayerservice/MidiFile.cpp
+++ /dev/null
@@ -1,541 +0,0 @@
-/* MidiFile.cpp
-**
-** Copyright 2007, 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.
-*/
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "MidiFile"
-#include "utils/Log.h"
-
-#include <stdio.h>
-#include <assert.h>
-#include <limits.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sched.h>
-#include <utils/threads.h>
-#include <libsonivox/eas_reverb.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#include <system/audio.h>
-
-#include "MidiFile.h"
-
-// ----------------------------------------------------------------------------
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-// The midi engine buffers are a bit small (128 frames), so we batch them up
-static const int NUM_BUFFERS = 4;
-
-// TODO: Determine appropriate return codes
-static status_t ERROR_NOT_OPEN = -1;
-static status_t ERROR_OPEN_FAILED = -2;
-static status_t ERROR_EAS_FAILURE = -3;
-static status_t ERROR_ALLOCATE_FAILED = -4;
-
-static const S_EAS_LIB_CONFIG* pLibConfig = NULL;
-
-MidiFile::MidiFile() :
-    mEasData(NULL), mEasHandle(NULL), mAudioBuffer(NULL),
-    mPlayTime(-1), mDuration(-1), mState(EAS_STATE_ERROR),
-    mStreamType(AUDIO_STREAM_MUSIC), mLoop(false), mExit(false),
-    mPaused(false), mRender(false), mTid(-1)
-{
-    ALOGV("constructor");
-
-    // get the library configuration and do sanity check
-    if (pLibConfig == NULL)
-        pLibConfig = EAS_Config();
-    if ((pLibConfig == NULL) || (LIB_VERSION != pLibConfig->libVersion)) {
-        ALOGE("EAS library/header mismatch");
-        goto Failed;
-    }
-
-    // initialize EAS library
-    if (EAS_Init(&mEasData) != EAS_SUCCESS) {
-        ALOGE("EAS_Init failed");
-        goto Failed;
-    }
-
-    // select reverb preset and enable
-    EAS_SetParameter(mEasData, EAS_MODULE_REVERB, EAS_PARAM_REVERB_PRESET, EAS_PARAM_REVERB_CHAMBER);
-    EAS_SetParameter(mEasData, EAS_MODULE_REVERB, EAS_PARAM_REVERB_BYPASS, EAS_FALSE);
-
-    // create playback thread
-    {
-        Mutex::Autolock l(mMutex);
-        mThread = new MidiFileThread(this);
-        mThread->run("midithread", ANDROID_PRIORITY_AUDIO);
-        mCondition.wait(mMutex);
-        ALOGV("thread started");
-    }
-
-    // indicate success
-    if (mTid > 0) {
-        ALOGV(" render thread(%d) started", mTid);
-        mState = EAS_STATE_READY;
-    }
-
-Failed:
-    return;
-}
-
-status_t MidiFile::initCheck()
-{
-    if (mState == EAS_STATE_ERROR) return ERROR_EAS_FAILURE;
-    return NO_ERROR;
-}
-
-MidiFile::~MidiFile() {
-    ALOGV("MidiFile destructor");
-    release();
-}
-
-status_t MidiFile::setDataSource(
-        const sp<IMediaHTTPService> & /*httpService*/,
-        const char* path,
-        const KeyedVector<String8, String8> *) {
-    ALOGV("MidiFile::setDataSource url=%s", path);
-    Mutex::Autolock lock(mMutex);
-
-    // file still open?
-    if (mEasHandle) {
-        reset_nosync();
-    }
-
-    // open file and set paused state
-    mIoWrapper = new MidiIoWrapper(path);
-    EAS_RESULT result = EAS_OpenFile(mEasData, mIoWrapper->getLocator(), &mEasHandle);
-    if (result == EAS_SUCCESS) {
-        updateState();
-    }
-
-    if (result != EAS_SUCCESS) {
-        ALOGE("EAS_OpenFile failed: [%d]", (int)result);
-        mState = EAS_STATE_ERROR;
-        return ERROR_OPEN_FAILED;
-    }
-
-    mState = EAS_STATE_OPEN;
-    mPlayTime = 0;
-    return NO_ERROR;
-}
-
-status_t MidiFile::setDataSource(int fd, int64_t offset, int64_t length)
-{
-    ALOGV("MidiFile::setDataSource fd=%d", fd);
-    Mutex::Autolock lock(mMutex);
-
-    // file still open?
-    if (mEasHandle) {
-        reset_nosync();
-    }
-
-    // open file and set paused state
-    mIoWrapper = new MidiIoWrapper(fd, offset, length);
-    EAS_RESULT result = EAS_OpenFile(mEasData, mIoWrapper->getLocator(), &mEasHandle);
-    updateState();
-
-    if (result != EAS_SUCCESS) {
-        ALOGE("EAS_OpenFile failed: [%d]", (int)result);
-        mState = EAS_STATE_ERROR;
-        return ERROR_OPEN_FAILED;
-    }
-
-    mState = EAS_STATE_OPEN;
-    mPlayTime = 0;
-    return NO_ERROR;
-}
-
-status_t MidiFile::prepare()
-{
-    ALOGV("MidiFile::prepare");
-    Mutex::Autolock lock(mMutex);
-    if (!mEasHandle) {
-        return ERROR_NOT_OPEN;
-    }
-    EAS_RESULT result;
-    if ((result = EAS_Prepare(mEasData, mEasHandle)) != EAS_SUCCESS) {
-        ALOGE("EAS_Prepare failed: [%ld]", result);
-        return ERROR_EAS_FAILURE;
-    }
-    updateState();
-    return NO_ERROR;
-}
-
-status_t MidiFile::prepareAsync()
-{
-    ALOGV("MidiFile::prepareAsync");
-    status_t ret = prepare();
-
-    // don't hold lock during callback
-    if (ret == NO_ERROR) {
-        sendEvent(MEDIA_PREPARED);
-    } else {
-        sendEvent(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, ret);
-    }
-    return ret;
-}
-
-status_t MidiFile::start()
-{
-    ALOGV("MidiFile::start");
-    Mutex::Autolock lock(mMutex);
-    if (!mEasHandle) {
-        return ERROR_NOT_OPEN;
-    }
-
-    // resuming after pause?
-    if (mPaused) {
-        if (EAS_Resume(mEasData, mEasHandle) != EAS_SUCCESS) {
-            return ERROR_EAS_FAILURE;
-        }
-        mPaused = false;
-        updateState();
-    }
-
-    mRender = true;
-    if (mState == EAS_STATE_PLAY) {
-        sendEvent(MEDIA_STARTED);
-    }
-
-    // wake up render thread
-    ALOGV("  wakeup render thread");
-    mCondition.signal();
-    return NO_ERROR;
-}
-
-status_t MidiFile::stop()
-{
-    ALOGV("MidiFile::stop");
-    Mutex::Autolock lock(mMutex);
-    if (!mEasHandle) {
-        return ERROR_NOT_OPEN;
-    }
-    if (!mPaused && (mState != EAS_STATE_STOPPED)) {
-        EAS_RESULT result = EAS_Pause(mEasData, mEasHandle);
-        if (result != EAS_SUCCESS) {
-            ALOGE("EAS_Pause returned error %ld", result);
-            return ERROR_EAS_FAILURE;
-        }
-    }
-    mPaused = false;
-    sendEvent(MEDIA_STOPPED);
-    return NO_ERROR;
-}
-
-status_t MidiFile::seekTo(int position)
-{
-    ALOGV("MidiFile::seekTo %d", position);
-    // hold lock during EAS calls
-    {
-        Mutex::Autolock lock(mMutex);
-        if (!mEasHandle) {
-            return ERROR_NOT_OPEN;
-        }
-        EAS_RESULT result;
-        if ((result = EAS_Locate(mEasData, mEasHandle, position, false))
-                != EAS_SUCCESS)
-        {
-            ALOGE("EAS_Locate returned %ld", result);
-            return ERROR_EAS_FAILURE;
-        }
-        EAS_GetLocation(mEasData, mEasHandle, &mPlayTime);
-    }
-    sendEvent(MEDIA_SEEK_COMPLETE);
-    return NO_ERROR;
-}
-
-status_t MidiFile::pause()
-{
-    ALOGV("MidiFile::pause");
-    Mutex::Autolock lock(mMutex);
-    if (!mEasHandle) {
-        return ERROR_NOT_OPEN;
-    }
-    if ((mState == EAS_STATE_PAUSING) || (mState == EAS_STATE_PAUSED)) return NO_ERROR;
-    if (EAS_Pause(mEasData, mEasHandle) != EAS_SUCCESS) {
-        return ERROR_EAS_FAILURE;
-    }
-    mPaused = true;
-    sendEvent(MEDIA_PAUSED);
-    return NO_ERROR;
-}
-
-bool MidiFile::isPlaying()
-{
-    ALOGV("MidiFile::isPlaying, mState=%d", int(mState));
-    if (!mEasHandle || mPaused) return false;
-    return (mState == EAS_STATE_PLAY);
-}
-
-status_t MidiFile::getCurrentPosition(int* position)
-{
-    ALOGV("MidiFile::getCurrentPosition");
-    if (!mEasHandle) {
-        ALOGE("getCurrentPosition(): file not open");
-        return ERROR_NOT_OPEN;
-    }
-    if (mPlayTime < 0) {
-        ALOGE("getCurrentPosition(): mPlayTime = %ld", mPlayTime);
-        return ERROR_EAS_FAILURE;
-    }
-    *position = mPlayTime;
-    return NO_ERROR;
-}
-
-status_t MidiFile::getDuration(int* duration)
-{
-
-    ALOGV("MidiFile::getDuration");
-    {
-        Mutex::Autolock lock(mMutex);
-        if (!mEasHandle) return ERROR_NOT_OPEN;
-        *duration = mDuration;
-    }
-
-    // if no duration cached, get the duration
-    // don't need a lock here because we spin up a new engine
-    if (*duration < 0) {
-        EAS_I32 temp;
-        EAS_DATA_HANDLE easData = NULL;
-        EAS_HANDLE easHandle = NULL;
-        EAS_RESULT result = EAS_Init(&easData);
-        if (result == EAS_SUCCESS) {
-            result = EAS_OpenFile(easData, mIoWrapper->getLocator(), &easHandle);
-        }
-        if (result == EAS_SUCCESS) {
-            result = EAS_Prepare(easData, easHandle);
-        }
-        if (result == EAS_SUCCESS) {
-            result = EAS_ParseMetaData(easData, easHandle, &temp);
-        }
-        if (easHandle) {
-            EAS_CloseFile(easData, easHandle);
-        }
-        if (easData) {
-            EAS_Shutdown(easData);
-        }
-
-        if (result != EAS_SUCCESS) {
-            return ERROR_EAS_FAILURE;
-        }
-
-        // cache successful result
-        mDuration = *duration = int(temp);
-    }
-
-    return NO_ERROR;
-}
-
-status_t MidiFile::release()
-{
-    ALOGV("MidiFile::release");
-    Mutex::Autolock l(mMutex);
-    reset_nosync();
-
-    // wait for render thread to exit
-    mExit = true;
-    mCondition.signal();
-
-    // wait for thread to exit
-    if (mAudioBuffer) {
-        mCondition.wait(mMutex);
-    }
-
-    // release resources
-    if (mEasData) {
-        EAS_Shutdown(mEasData);
-        mEasData = NULL;
-    }
-    return NO_ERROR;
-}
-
-status_t MidiFile::reset()
-{
-    ALOGV("MidiFile::reset");
-    Mutex::Autolock lock(mMutex);
-    return reset_nosync();
-}
-
-// call only with mutex held
-status_t MidiFile::reset_nosync()
-{
-    ALOGV("MidiFile::reset_nosync");
-    sendEvent(MEDIA_STOPPED);
-    // close file
-    if (mEasHandle) {
-        EAS_CloseFile(mEasData, mEasHandle);
-        mEasHandle = NULL;
-    }
-
-    mIoWrapper.clear();
-    mPlayTime = -1;
-    mDuration = -1;
-    mLoop = false;
-    mPaused = false;
-    mRender = false;
-    return NO_ERROR;
-}
-
-status_t MidiFile::setLooping(int loop)
-{
-    ALOGV("MidiFile::setLooping");
-    Mutex::Autolock lock(mMutex);
-    if (!mEasHandle) {
-        return ERROR_NOT_OPEN;
-    }
-    loop = loop ? -1 : 0;
-    if (EAS_SetRepeat(mEasData, mEasHandle, loop) != EAS_SUCCESS) {
-        return ERROR_EAS_FAILURE;
-    }
-    return NO_ERROR;
-}
-
-status_t MidiFile::createOutputTrack() {
-    if (mAudioSink->open(pLibConfig->sampleRate, pLibConfig->numChannels,
-            CHANNEL_MASK_USE_CHANNEL_ORDER, AUDIO_FORMAT_PCM_16_BIT, 2 /*bufferCount*/) != NO_ERROR) {
-        ALOGE("mAudioSink open failed");
-        return ERROR_OPEN_FAILED;
-    }
-    return NO_ERROR;
-}
-
-int MidiFile::render() {
-    EAS_RESULT result = EAS_FAILURE;
-    EAS_I32 count;
-    int temp;
-    bool audioStarted = false;
-
-    ALOGV("MidiFile::render");
-
-    // allocate render buffer
-    mAudioBuffer = new EAS_PCM[pLibConfig->mixBufferSize * pLibConfig->numChannels * NUM_BUFFERS];
-    if (!mAudioBuffer) {
-        ALOGE("mAudioBuffer allocate failed");
-        goto threadExit;
-    }
-
-    // signal main thread that we started
-    {
-        Mutex::Autolock l(mMutex);
-        mTid = gettid();
-        ALOGV("render thread(%d) signal", mTid);
-        mCondition.signal();
-    }
-
-    while (1) {
-        mMutex.lock();
-
-        // nothing to render, wait for client thread to wake us up
-        while (!mRender && !mExit)
-        {
-            ALOGV("MidiFile::render - signal wait");
-            mCondition.wait(mMutex);
-            ALOGV("MidiFile::render - signal rx'd");
-        }
-        if (mExit) {
-            mMutex.unlock();
-            break;
-        }
-
-        // render midi data into the input buffer
-        //ALOGV("MidiFile::render - rendering audio");
-        int num_output = 0;
-        EAS_PCM* p = mAudioBuffer;
-        for (int i = 0; i < NUM_BUFFERS; i++) {
-            result = EAS_Render(mEasData, p, pLibConfig->mixBufferSize, &count);
-            if (result != EAS_SUCCESS) {
-                ALOGE("EAS_Render returned %ld", result);
-            }
-            p += count * pLibConfig->numChannels;
-            num_output += count * pLibConfig->numChannels * sizeof(EAS_PCM);
-        }
-
-        // update playback state and position
-        // ALOGV("MidiFile::render - updating state");
-        EAS_GetLocation(mEasData, mEasHandle, &mPlayTime);
-        EAS_State(mEasData, mEasHandle, &mState);
-        mMutex.unlock();
-
-        // create audio output track if necessary
-        if (!mAudioSink->ready()) {
-            ALOGV("MidiFile::render - create output track");
-            if (createOutputTrack() != NO_ERROR)
-                goto threadExit;
-        }
-
-        // Write data to the audio hardware
-        // ALOGV("MidiFile::render - writing to audio output");
-        if ((temp = mAudioSink->write(mAudioBuffer, num_output)) < 0) {
-            ALOGE("Error in writing:%d",temp);
-            return temp;
-        }
-
-        // start audio output if necessary
-        if (!audioStarted) {
-            //ALOGV("MidiFile::render - starting audio");
-            mAudioSink->start();
-            audioStarted = true;
-        }
-
-        // still playing?
-        if ((mState == EAS_STATE_STOPPED) || (mState == EAS_STATE_ERROR) ||
-                (mState == EAS_STATE_PAUSED))
-        {
-            switch(mState) {
-            case EAS_STATE_STOPPED:
-            {
-                ALOGV("MidiFile::render - stopped");
-                sendEvent(MEDIA_PLAYBACK_COMPLETE);
-                break;
-            }
-            case EAS_STATE_ERROR:
-            {
-                ALOGE("MidiFile::render - error");
-                sendEvent(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN);
-                break;
-            }
-            case EAS_STATE_PAUSED:
-                ALOGV("MidiFile::render - paused");
-                break;
-            default:
-                break;
-            }
-            mAudioSink->stop();
-            audioStarted = false;
-            mRender = false;
-        }
-    }
-
-threadExit:
-    mAudioSink.clear();
-    if (mAudioBuffer) {
-        delete [] mAudioBuffer;
-        mAudioBuffer = NULL;
-    }
-    mMutex.lock();
-    mTid = -1;
-    mCondition.signal();
-    mMutex.unlock();
-    return result;
-}
-
-} // end namespace android