OpenSL-based audio support for BootAnimation
Respects dnd settings for sound playback.
Basic implementation uses in-memory wavs as buffers.
audioplay::playClip should not be called before previous clip ends.
Updated FORMAT.md to reflect no more audio_conf.txt
Bug: 29055299
Change-Id: Ifc358d7c85f11b8b54ae6446c40643b87bc567f2
diff --git a/cmds/bootanimation/Android.mk b/cmds/bootanimation/Android.mk
index 7c8842c..3cf13d9 100644
--- a/cmds/bootanimation/Android.mk
+++ b/cmds/bootanimation/Android.mk
@@ -3,14 +3,16 @@
LOCAL_SRC_FILES:= \
bootanimation_main.cpp \
- AudioPlayer.cpp \
+ audioplay.cpp \
BootAnimation.cpp
LOCAL_CFLAGS += -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
LOCAL_CFLAGS += -Wall -Werror -Wunused -Wunreachable-code
-LOCAL_C_INCLUDES += external/tinyalsa/include
+LOCAL_C_INCLUDES += \
+ external/tinyalsa/include \
+ frameworks/wilhelm/include
LOCAL_SHARED_LIBRARIES := \
libcutils \
@@ -23,6 +25,7 @@
libEGL \
libGLESv1_CM \
libgui \
+ libOpenSLES \
libtinyalsa
LOCAL_MODULE:= bootanimation
@@ -33,4 +36,8 @@
LOCAL_32_BIT_ONLY := true
endif
+# get asserts to work
+APP_OPTIM := debug
+LOCAL_CFLAGS += -UNDEBUG
+
include $(BUILD_EXECUTABLE)
diff --git a/cmds/bootanimation/AudioPlayer.cpp b/cmds/bootanimation/AudioPlayer.cpp
deleted file mode 100644
index 2932130..0000000
--- a/cmds/bootanimation/AudioPlayer.cpp
+++ /dev/null
@@ -1,313 +0,0 @@
-/*
- * Copyright (C) 2014 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 "BootAnim_AudioPlayer"
-
-#include "AudioPlayer.h"
-
-#include <androidfw/ZipFileRO.h>
-#include <tinyalsa/asoundlib.h>
-#include <utils/Log.h>
-#include <utils/String8.h>
-
-#define ID_RIFF 0x46464952
-#define ID_WAVE 0x45564157
-#define ID_FMT 0x20746d66
-#define ID_DATA 0x61746164
-
-// Maximum line length for audio_conf.txt
-// We only accept lines less than this length to avoid overflows using sscanf()
-#define MAX_LINE_LENGTH 1024
-
-struct riff_wave_header {
- uint32_t riff_id;
- uint32_t riff_sz;
- uint32_t wave_id;
-};
-
-struct chunk_header {
- uint32_t id;
- uint32_t sz;
-};
-
-struct chunk_fmt {
- uint16_t audio_format;
- uint16_t num_channels;
- uint32_t sample_rate;
- uint32_t byte_rate;
- uint16_t block_align;
- uint16_t bits_per_sample;
-};
-
-
-namespace android {
-
-AudioPlayer::AudioPlayer()
- : mCard(-1),
- mDevice(-1),
- mPeriodSize(0),
- mPeriodCount(0),
- mCurrentFile(NULL)
-{
-}
-
-AudioPlayer::~AudioPlayer() {
-}
-
-static bool setMixerValue(struct mixer* mixer, const char* name, const char* values)
-{
- if (!mixer) {
- ALOGE("no mixer in setMixerValue");
- return false;
- }
- struct mixer_ctl *ctl = mixer_get_ctl_by_name(mixer, name);
- if (!ctl) {
- ALOGE("mixer_get_ctl_by_name failed for %s", name);
- return false;
- }
-
- enum mixer_ctl_type type = mixer_ctl_get_type(ctl);
- int numValues = mixer_ctl_get_num_values(ctl);
- int intValue;
- char stringValue[MAX_LINE_LENGTH];
-
- for (int i = 0; i < numValues && values; i++) {
- // strip leading space
- while (*values == ' ') values++;
- if (*values == 0) break;
-
- switch (type) {
- case MIXER_CTL_TYPE_BOOL:
- case MIXER_CTL_TYPE_INT:
- if (sscanf(values, "%d", &intValue) == 1) {
- if (mixer_ctl_set_value(ctl, i, intValue) != 0) {
- ALOGE("mixer_ctl_set_value failed for %s %d", name, intValue);
- }
- } else {
- ALOGE("Could not parse %s as int for %s", values, name);
- }
- break;
- case MIXER_CTL_TYPE_ENUM:
- if (sscanf(values, "%s", stringValue) == 1) {
- if (mixer_ctl_set_enum_by_string(ctl, stringValue) != 0) {
- ALOGE("mixer_ctl_set_enum_by_string failed for %s %s", name, stringValue);
- }
- } else {
- ALOGE("Could not parse %s as enum for %s", values, name);
- }
- break;
- default:
- ALOGE("unsupported mixer type %d for %s", type, name);
- break;
- }
-
- values = strchr(values, ' ');
- }
-
- return true;
-}
-
-
-/*
- * Parse the audio configuration file.
- * The file is named audio_conf.txt and must begin with the following header:
- *
- * card=<ALSA card number>
- * device=<ALSA device number>
- * period_size=<period size>
- * period_count=<period count>
- *
- * This header is followed by zero or more mixer settings, each with the format:
- * mixer "<name>" = <value list>
- * Since mixer names can contain spaces, the name must be enclosed in double quotes.
- * The values in the value list can be integers, booleans (represented by 0 or 1)
- * or strings for enum values.
- */
-bool AudioPlayer::init(const char* config)
-{
- int tempInt;
- struct mixer* mixer = NULL;
- char name[MAX_LINE_LENGTH];
-
- for (;;) {
- const char* endl = strstr(config, "\n");
- if (!endl) break;
- String8 line(config, endl - config);
- if (line.length() >= MAX_LINE_LENGTH) {
- ALOGE("Line too long in audio_conf.txt");
- return false;
- }
- const char* l = line.string();
-
- if (sscanf(l, "card=%d", &tempInt) == 1) {
- ALOGD("card=%d", tempInt);
- mCard = tempInt;
-
- mixer = mixer_open(mCard);
- if (!mixer) {
- ALOGE("could not open mixer for card %d", mCard);
- return false;
- }
- } else if (sscanf(l, "device=%d", &tempInt) == 1) {
- ALOGD("device=%d", tempInt);
- mDevice = tempInt;
- } else if (sscanf(l, "period_size=%d", &tempInt) == 1) {
- ALOGD("period_size=%d", tempInt);
- mPeriodSize = tempInt;
- } else if (sscanf(l, "period_count=%d", &tempInt) == 1) {
- ALOGD("period_count=%d", tempInt);
- mPeriodCount = tempInt;
- } else if (sscanf(l, "mixer \"%[0-9a-zA-Z _]s\"", name) == 1) {
- const char* values = strchr(l, '=');
- if (values) {
- values++; // skip '='
- ALOGD("name: \"%s\" = %s", name, values);
- setMixerValue(mixer, name, values);
- } else {
- ALOGE("values missing for name: \"%s\"", name);
- }
- }
- config = ++endl;
- }
-
- mixer_close(mixer);
-
- if (mCard >= 0 && mDevice >= 0) {
- return true;
- }
-
- return false;
-}
-
-void AudioPlayer::playFile(FileMap* fileMap) {
- // stop any currently playing sound
- requestExitAndWait();
-
- mCurrentFile = fileMap;
- run("bootanim audio", PRIORITY_URGENT_AUDIO);
-}
-
-bool AudioPlayer::threadLoop()
-{
- struct pcm_config config;
- struct pcm *pcm = NULL;
- bool moreChunks = true;
- const struct chunk_fmt* chunkFmt = NULL;
- int bufferSize;
- const uint8_t* wavData;
- size_t wavLength;
- const struct riff_wave_header* wavHeader;
-
- if (mCurrentFile == NULL) {
- ALOGE("mCurrentFile is NULL");
- return false;
- }
-
- wavData = (const uint8_t *)mCurrentFile->getDataPtr();
- if (!wavData) {
- ALOGE("Could not access WAV file data");
- goto exit;
- }
- wavLength = mCurrentFile->getDataLength();
-
- wavHeader = (const struct riff_wave_header *)wavData;
- if (wavLength < sizeof(*wavHeader) || (wavHeader->riff_id != ID_RIFF) ||
- (wavHeader->wave_id != ID_WAVE)) {
- ALOGE("Error: audio file is not a riff/wave file\n");
- goto exit;
- }
- wavData += sizeof(*wavHeader);
- wavLength -= sizeof(*wavHeader);
-
- do {
- const struct chunk_header* chunkHeader = (const struct chunk_header*)wavData;
- if (wavLength < sizeof(*chunkHeader)) {
- ALOGE("EOF reading chunk headers");
- goto exit;
- }
-
- wavData += sizeof(*chunkHeader);
- wavLength -= sizeof(*chunkHeader);
-
- switch (chunkHeader->id) {
- case ID_FMT:
- chunkFmt = (const struct chunk_fmt *)wavData;
- wavData += chunkHeader->sz;
- wavLength -= chunkHeader->sz;
- break;
- case ID_DATA:
- /* Stop looking for chunks */
- moreChunks = 0;
- break;
- default:
- /* Unknown chunk, skip bytes */
- wavData += chunkHeader->sz;
- wavLength -= chunkHeader->sz;
- }
- } while (moreChunks);
-
- if (!chunkFmt) {
- ALOGE("format not found in WAV file");
- goto exit;
- }
-
-
- memset(&config, 0, sizeof(config));
- config.channels = chunkFmt->num_channels;
- config.rate = chunkFmt->sample_rate;
- config.period_size = mPeriodSize;
- config.period_count = mPeriodCount;
- config.start_threshold = mPeriodSize / 4;
- config.stop_threshold = INT_MAX;
- config.avail_min = config.start_threshold;
- if (chunkFmt->bits_per_sample != 16) {
- ALOGE("only 16 bit WAV files are supported");
- goto exit;
- }
- config.format = PCM_FORMAT_S16_LE;
-
- pcm = pcm_open(mCard, mDevice, PCM_OUT, &config);
- if (!pcm || !pcm_is_ready(pcm)) {
- ALOGE("Unable to open PCM device (%s)\n", pcm_get_error(pcm));
- goto exit;
- }
-
- bufferSize = pcm_frames_to_bytes(pcm, pcm_get_buffer_size(pcm));
-
- while (wavLength > 0) {
- if (exitPending()) goto exit;
- size_t count = bufferSize;
- if (count > wavLength)
- count = wavLength;
-
- if (pcm_write(pcm, wavData, count)) {
- ALOGE("pcm_write failed (%s)", pcm_get_error(pcm));
- goto exit;
- }
- wavData += count;
- wavLength -= count;
- }
-
-exit:
- if (pcm)
- pcm_close(pcm);
- delete mCurrentFile;
- mCurrentFile = NULL;
- return false;
-}
-
-} // namespace android
diff --git a/cmds/bootanimation/AudioPlayer.h b/cmds/bootanimation/AudioPlayer.h
deleted file mode 100644
index 1def0ae..0000000
--- a/cmds/bootanimation/AudioPlayer.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright (C) 2014 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 _BOOTANIMATION_AUDIOPLAYER_H
-#define _BOOTANIMATION_AUDIOPLAYER_H
-
-#include <utils/Thread.h>
-#include <utils/FileMap.h>
-
-namespace android {
-
-class AudioPlayer : public Thread
-{
-public:
- AudioPlayer();
- virtual ~AudioPlayer();
- bool init(const char* config);
-
- void playFile(FileMap* fileMap);
-
-private:
- virtual bool threadLoop();
-
-private:
- int mCard; // ALSA card to use
- int mDevice; // ALSA device to use
- int mPeriodSize;
- int mPeriodCount;
-
- FileMap* mCurrentFile;
-};
-
-} // namespace android
-
-#endif // _BOOTANIMATION_AUDIOPLAYER_H
diff --git a/cmds/bootanimation/BootAnimation.cpp b/cmds/bootanimation/BootAnimation.cpp
index e849f4b..6789e2f 100644
--- a/cmds/bootanimation/BootAnimation.cpp
+++ b/cmds/bootanimation/BootAnimation.cpp
@@ -58,7 +58,7 @@
#include <EGL/eglext.h>
#include "BootAnimation.h"
-#include "AudioPlayer.h"
+#include "audioplay.h"
namespace android {
@@ -106,9 +106,7 @@
// might be blocked on a condition variable that will never be updated.
kill( getpid(), SIGKILL );
requestExit();
- if (mAudioPlayer != NULL) {
- mAudioPlayer->requestExit();
- }
+ audioplay::destroy();
}
status_t BootAnimation::initTexture(Texture* texture, AssetManager& assets,
@@ -400,9 +398,6 @@
int exitnow = atoi(value);
if (exitnow) {
requestExit();
- if (mAudioPlayer != NULL) {
- mAudioPlayer->requestExit();
- }
}
}
@@ -524,16 +519,6 @@
}
char const* s = desString.string();
- // Create and initialize an AudioPlayer if we have an audio_conf.txt file
- String8 audioConf;
- if (readFile(animation.zip, "audio_conf.txt", audioConf)) {
- mAudioPlayer = new AudioPlayer;
- if (!mAudioPlayer->init(audioConf.string())) {
- ALOGE("mAudioPlayer.init failed");
- mAudioPlayer = NULL;
- }
- }
-
// Parse the description file
for (;;) {
const char* endl = strstr(s, "\n");
@@ -564,7 +549,7 @@
part.pause = pause;
part.path = path;
part.clockPosY = clockPosY;
- part.audioFile = NULL;
+ part.audioData = NULL;
part.animation = NULL;
if (!parseColor(color, part.backgroundColor)) {
ALOGE("> invalid color '#%s'", color);
@@ -580,7 +565,7 @@
part.playUntilComplete = false;
part.count = 1;
part.pause = 0;
- part.audioFile = NULL;
+ part.audioData = NULL;
part.animation = loadAnimation(String8(SYSTEM_BOOTANIMATION_FILE));
if (part.animation != NULL)
animation.parts.add(part);
@@ -601,6 +586,7 @@
return false;
}
+ bool hasAudio = false;
ZipEntryRO entry;
char name[ANIM_ENTRY_NAME_MAX];
while ((entry = zip->nextEntry(cookie)) != NULL) {
@@ -624,8 +610,10 @@
if (map) {
Animation::Part& part(animation.parts.editItemAt(j));
if (leaf == "audio.wav") {
+ hasAudio = true;
// a part may have at most one audio file
- part.audioFile = map;
+ part.audioData = (uint8_t *)map->getDataPtr();
+ part.audioLength = map->getDataLength();
} else if (leaf == "trim.txt") {
part.trimData.setTo((char const*)map->getDataPtr(),
map->getDataLength());
@@ -640,6 +628,8 @@
part.frames.add(frame);
}
}
+ } else {
+ ALOGE("bootanimation.zip is compressed; must be only stored");
}
}
}
@@ -673,6 +663,12 @@
}
}
+ // Create and initialize audioplay if there is a wav file in any of the animations.
+ if (hasAudio) {
+ ALOGD("found audio.wav, creating playback engine");
+ audioplay::create();
+ }
+
zip->endIteration(cookie);
return true;
@@ -763,8 +759,9 @@
break;
// only play audio file the first time we animate the part
- if (r == 0 && mAudioPlayer != NULL && part.audioFile) {
- mAudioPlayer->playFile(part.audioFile);
+ if (r == 0 && part.audioData) {
+ ALOGD("playing clip for part%d, size=%d", (int) i, part.audioLength);
+ audioplay::playClip(part.audioData, part.audioLength);
}
glClearColor(
@@ -847,6 +844,11 @@
}
}
}
+
+ // we've finally played everything we're going to play
+ audioplay::setPlaying(false);
+ audioplay::destroy();
+
return true;
}
diff --git a/cmds/bootanimation/BootAnimation.h b/cmds/bootanimation/BootAnimation.h
index a093c9b..5feea01 100644
--- a/cmds/bootanimation/BootAnimation.h
+++ b/cmds/bootanimation/BootAnimation.h
@@ -30,7 +30,6 @@
namespace android {
-class AudioPlayer;
class Surface;
class SurfaceComposerClient;
class SurfaceControl;
@@ -98,7 +97,8 @@
SortedVector<Frame> frames;
bool playUntilComplete;
float backgroundColor[3];
- FileMap* audioFile;
+ uint8_t* audioData;
+ int audioLength;
Animation* animation;
};
int fps;
@@ -124,7 +124,6 @@
void checkExit();
sp<SurfaceComposerClient> mSession;
- sp<AudioPlayer> mAudioPlayer;
AssetManager mAssets;
Texture mAndroid[2];
Texture mClock;
diff --git a/cmds/bootanimation/FORMAT.md b/cmds/bootanimation/FORMAT.md
index e4c52f7..9ea6fea 100644
--- a/cmds/bootanimation/FORMAT.md
+++ b/cmds/bootanimation/FORMAT.md
@@ -67,34 +67,8 @@
## audio.wav
-Each part may optionally play a `wav` sample when it starts. To enable this for an animation,
-you must also include a `audio_conf.txt` file in the ZIP archive. Its format is as follows:
-
- card=<ALSA card number>
- device=<ALSA device number>
- period_size=<period size>
- period_count=<period count>
-
-This header is followed by zero or more mixer settings, each with the format:
-
- mixer "<name>" = <value list>
-
-Here's an example `audio_conf.txt` from Shamu:
-
- card=0
- device=15
- period_size=1024
- period_count=4
-
- mixer "QUAT_MI2S_RX Audio Mixer MultiMedia5" = 1
- mixer "Playback Channel Map" = 0 220 157 195 0 0 0 0
- mixer "QUAT_MI2S_RX Channels" = Two
- mixer "BOOST_STUB Right Mixer right" = 1
- mixer "BOOST_STUB Left Mixer left" = 1
- mixer "Compress Playback 9 Volume" = 80 80
-
-You will probably need to get these mixer names and values out of `audio_platform_info.xml`
-and `mixer_paths.xml` for your device.
+Each part may optionally play a `wav` sample when it starts. To enable this, add a file
+with the name `audio.wav` in the part directory.
## exiting
diff --git a/cmds/bootanimation/audioplay.cpp b/cmds/bootanimation/audioplay.cpp
new file mode 100644
index 0000000..e20ef0c
--- /dev/null
+++ b/cmds/bootanimation/audioplay.cpp
@@ -0,0 +1,321 @@
+/*
+ * Copyright (C) 2016 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.
+ *
+ */
+
+// cribbed from samples/native-audio
+
+#include "audioplay.h"
+
+#define CHATTY ALOGD
+
+#include <assert.h>
+#include <string.h>
+
+#include <utils/Log.h>
+
+// for native audio
+#include <SLES/OpenSLES.h>
+#include <SLES/OpenSLES_Android.h>
+
+namespace audioplay {
+namespace {
+
+// engine interfaces
+static SLObjectItf engineObject = NULL;
+static SLEngineItf engineEngine;
+
+// output mix interfaces
+static SLObjectItf outputMixObject = NULL;
+
+// buffer queue player interfaces
+static SLObjectItf bqPlayerObject = NULL;
+static SLPlayItf bqPlayerPlay;
+static SLAndroidSimpleBufferQueueItf bqPlayerBufferQueue;
+static SLMuteSoloItf bqPlayerMuteSolo;
+static SLVolumeItf bqPlayerVolume;
+
+// pointer and size of the next player buffer to enqueue, and number of remaining buffers
+static const uint8_t* nextBuffer;
+static unsigned nextSize;
+
+static const uint32_t ID_RIFF = 0x46464952;
+static const uint32_t ID_WAVE = 0x45564157;
+static const uint32_t ID_FMT = 0x20746d66;
+static const uint32_t ID_DATA = 0x61746164;
+
+struct RiffWaveHeader {
+ uint32_t riff_id;
+ uint32_t riff_sz;
+ uint32_t wave_id;
+};
+
+struct ChunkHeader {
+ uint32_t id;
+ uint32_t sz;
+};
+
+struct ChunkFormat {
+ uint16_t audio_format;
+ uint16_t num_channels;
+ uint32_t sample_rate;
+ uint32_t byte_rate;
+ uint16_t block_align;
+ uint16_t bits_per_sample;
+};
+
+// this callback handler is called every time a buffer finishes playing
+void bqPlayerCallback(SLAndroidSimpleBufferQueueItf bq, void *context) {
+ (void)bq;
+ (void)context;
+ assert(bq == bqPlayerBufferQueue);
+ assert(NULL == context);
+ audioplay::setPlaying(false);
+}
+
+bool hasPlayer() {
+ return (engineObject != NULL && bqPlayerObject != NULL);
+}
+
+// create the engine and output mix objects
+void createEngine() {
+ SLresult result;
+
+ // create engine
+ result = slCreateEngine(&engineObject, 0, NULL, 0, NULL, NULL);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+
+ // realize the engine
+ result = (*engineObject)->Realize(engineObject, SL_BOOLEAN_FALSE);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+
+ // get the engine interface, which is needed in order to create other objects
+ result = (*engineObject)->GetInterface(engineObject, SL_IID_ENGINE, &engineEngine);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+
+ // create output mix, with environmental reverb specified as a non-required interface
+ const SLInterfaceID ids[1] = {SL_IID_ENVIRONMENTALREVERB};
+ const SLboolean req[1] = {SL_BOOLEAN_FALSE};
+ result = (*engineEngine)->CreateOutputMix(engineEngine, &outputMixObject, 1, ids, req);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+
+ // realize the output mix
+ result = (*outputMixObject)->Realize(outputMixObject, SL_BOOLEAN_FALSE);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+}
+
+// create buffer queue audio player
+void createBufferQueueAudioPlayer(const ChunkFormat* chunkFormat) {
+ SLresult result;
+
+ // configure audio source
+ SLDataLocator_AndroidSimpleBufferQueue loc_bufq = {SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE, 1};
+
+ SLDataFormat_PCM format_pcm = {
+ SL_DATAFORMAT_PCM,
+ chunkFormat->num_channels,
+ chunkFormat->sample_rate * 1000, // convert to milliHz
+ chunkFormat->bits_per_sample,
+ 16,
+ SL_SPEAKER_FRONT_CENTER,
+ SL_BYTEORDER_LITTLEENDIAN
+ };
+ SLDataSource audioSrc = {&loc_bufq, &format_pcm};
+
+ // configure audio sink
+ SLDataLocator_OutputMix loc_outmix = {SL_DATALOCATOR_OUTPUTMIX, outputMixObject};
+ SLDataSink audioSnk = {&loc_outmix, NULL};
+
+ // create audio player
+ const SLInterfaceID ids[2] = {SL_IID_BUFFERQUEUE, SL_IID_VOLUME};
+ const SLboolean req[2] = {SL_BOOLEAN_TRUE, SL_BOOLEAN_TRUE};
+ result = (*engineEngine)->CreateAudioPlayer(engineEngine, &bqPlayerObject, &audioSrc, &audioSnk,
+ 2, ids, req);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+
+ // realize the player
+ result = (*bqPlayerObject)->Realize(bqPlayerObject, SL_BOOLEAN_FALSE);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+
+ // get the play interface
+ result = (*bqPlayerObject)->GetInterface(bqPlayerObject, SL_IID_PLAY, &bqPlayerPlay);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+
+ // get the buffer queue interface
+ result = (*bqPlayerObject)->GetInterface(bqPlayerObject, SL_IID_BUFFERQUEUE,
+ &bqPlayerBufferQueue);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+
+ // register callback on the buffer queue
+ result = (*bqPlayerBufferQueue)->RegisterCallback(bqPlayerBufferQueue, bqPlayerCallback, NULL);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+
+#if 0 // mute/solo is not supported for sources that are known to be mono, as this is
+ // get the mute/solo interface
+ result = (*bqPlayerObject)->GetInterface(bqPlayerObject, SL_IID_MUTESOLO, &bqPlayerMuteSolo);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+#endif
+
+ // get the volume interface
+ result = (*bqPlayerObject)->GetInterface(bqPlayerObject, SL_IID_VOLUME, &bqPlayerVolume);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+
+ // set the player's state to playing
+ audioplay::setPlaying(true);
+ CHATTY("Created buffer queue player: %p", bqPlayerBufferQueue);
+}
+
+} // namespace
+
+void create() {
+ createEngine();
+}
+
+bool playClip(const uint8_t* buf, int size) {
+ // Parse the WAV header
+ nextBuffer = buf;
+ nextSize = size;
+ const RiffWaveHeader* wavHeader = (const RiffWaveHeader*)buf;
+ if (nextSize < sizeof(*wavHeader) || (wavHeader->riff_id != ID_RIFF) ||
+ (wavHeader->wave_id != ID_WAVE)) {
+ ALOGE("Error: audio file is not a riff/wave file\n");
+ return false;
+ }
+ nextBuffer += sizeof(*wavHeader);
+ nextSize -= sizeof(*wavHeader);
+
+ const ChunkFormat* chunkFormat = nullptr;
+ while (true) {
+ const ChunkHeader* chunkHeader = (const ChunkHeader*)nextBuffer;
+ if (nextSize < sizeof(*chunkHeader)) {
+ ALOGE("EOF reading chunk headers");
+ return false;
+ }
+
+ nextBuffer += sizeof(*chunkHeader);
+ nextSize -= sizeof(*chunkHeader);
+
+ bool endLoop = false;
+ switch (chunkHeader->id) {
+ case ID_FMT:
+ chunkFormat = (const ChunkFormat*)nextBuffer;
+ nextBuffer += chunkHeader->sz;
+ nextSize -= chunkHeader->sz;
+ break;
+ case ID_DATA:
+ /* Stop looking for chunks */
+ endLoop = true;
+ break;
+ default:
+ /* Unknown chunk, skip bytes */
+ nextBuffer += chunkHeader->sz;
+ nextSize -= chunkHeader->sz;
+ }
+ if (endLoop) {
+ break;
+ }
+ }
+
+ if (!chunkFormat) {
+ ALOGE("format not found in WAV file");
+ return false;
+ }
+
+ // If this is the first clip, create the buffer based on this WAV's header.
+ // We assume all future clips with be in the same format.
+ if (bqPlayerBufferQueue == nullptr) {
+ createBufferQueueAudioPlayer(chunkFormat);
+ }
+
+ assert(bqPlayerBufferQueue != nullptr);
+ assert(buf != nullptr);
+
+ if (!hasPlayer()) {
+ ALOGD("cannot play clip %p without a player", buf);
+ return false;
+ }
+
+ CHATTY("playClip on player %p: buf=%p size=%d", bqPlayerBufferQueue, buf, size);
+
+ if (nextSize > 0) {
+ // here we only enqueue one buffer because it is a long clip,
+ // but for streaming playback we would typically enqueue at least 2 buffers to start
+ SLresult result;
+ result = (*bqPlayerBufferQueue)->Enqueue(bqPlayerBufferQueue, nextBuffer, nextSize);
+ if (SL_RESULT_SUCCESS != result) {
+ return false;
+ }
+ audioplay::setPlaying(true);
+ }
+
+ return true;
+}
+
+// set the playing state for the buffer queue audio player
+void setPlaying(bool isPlaying) {
+ if (!hasPlayer()) return;
+
+ SLresult result;
+
+ if (NULL != bqPlayerPlay) {
+ // set the player's state
+ result = (*bqPlayerPlay)->SetPlayState(bqPlayerPlay,
+ isPlaying ? SL_PLAYSTATE_PLAYING : SL_PLAYSTATE_STOPPED);
+ assert(SL_RESULT_SUCCESS == result);
+ (void)result;
+ }
+
+}
+
+void destroy() {
+ // destroy buffer queue audio player object, and invalidate all associated interfaces
+ if (bqPlayerObject != NULL) {
+ CHATTY("destroying audio player");
+ (*bqPlayerObject)->Destroy(bqPlayerObject);
+ bqPlayerObject = NULL;
+ bqPlayerPlay = NULL;
+ bqPlayerBufferQueue = NULL;
+ bqPlayerMuteSolo = NULL;
+ bqPlayerVolume = NULL;
+ }
+
+ // destroy output mix object, and invalidate all associated interfaces
+ if (outputMixObject != NULL) {
+ (*outputMixObject)->Destroy(outputMixObject);
+ outputMixObject = NULL;
+ }
+
+ // destroy engine object, and invalidate all associated interfaces
+ if (engineObject != NULL) {
+ CHATTY("destroying audio engine");
+ (*engineObject)->Destroy(engineObject);
+ engineObject = NULL;
+ engineEngine = NULL;
+ }
+}
+
+} // namespace audioplay
diff --git a/cmds/bootanimation/audioplay.h b/cmds/bootanimation/audioplay.h
new file mode 100644
index 0000000..bdc0a1c
--- /dev/null
+++ b/cmds/bootanimation/audioplay.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2016 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 AUDIOPLAY_H_
+#define AUDIOPLAY_H_
+
+#include <string.h>
+
+namespace audioplay {
+
+void create();
+
+// Play a WAV pointed to by buf. All clips are assumed to be in the same format.
+// playClip should not be called while a clip is still playing.
+bool playClip(const uint8_t* buf, int size);
+void setPlaying(bool isPlaying);
+void destroy();
+
+}
+
+#endif // AUDIOPLAY_H_