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-rw-r--r--media/libstagefright/AMRWriter.cpp184
-rw-r--r--media/libstagefright/Android.mk2
-rw-r--r--media/libstagefright/AudioSource.cpp122
3 files changed, 308 insertions, 0 deletions
diff --git a/media/libstagefright/AMRWriter.cpp b/media/libstagefright/AMRWriter.cpp
new file mode 100644
index 0000000..7b681f1
--- /dev/null
+++ b/media/libstagefright/AMRWriter.cpp
@@ -0,0 +1,184 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/stagefright/AMRWriter.h>
+
+#include <media/stagefright/MediaBuffer.h>
+#include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MediaSource.h>
+#include <media/stagefright/MetaData.h>
+
+namespace android {
+
+AMRWriter::AMRWriter(const char *filename)
+ : mFile(fopen(filename, "wb")),
+ mInitCheck(mFile != NULL ? OK : NO_INIT),
+ mStarted(false) {
+}
+
+AMRWriter::AMRWriter(int fd)
+ : mFile(fdopen(fd, "wb")),
+ mInitCheck(mFile != NULL ? OK : NO_INIT),
+ mStarted(false) {
+}
+
+AMRWriter::~AMRWriter() {
+ if (mStarted) {
+ stop();
+ }
+
+ if (mFile != NULL) {
+ fclose(mFile);
+ mFile = NULL;
+ }
+}
+
+status_t AMRWriter::initCheck() const {
+ return mInitCheck;
+}
+
+status_t AMRWriter::addSource(const sp<MediaSource> &source) {
+ Mutex::Autolock autoLock(mLock);
+
+ if (mInitCheck != OK) {
+ return mInitCheck;
+ }
+
+ if (mSource != NULL) {
+ // AMR files only support a single track of audio.
+ return UNKNOWN_ERROR;
+ }
+
+ sp<MetaData> meta = source->getFormat();
+
+ const char *mime;
+ CHECK(meta->findCString(kKeyMIMEType, &mime));
+
+ bool isWide = false;
+ if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AMR_WB)) {
+ isWide = true;
+ } else if (strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AMR_NB)) {
+ return ERROR_UNSUPPORTED;
+ }
+
+ int32_t channelCount;
+ int32_t sampleRate;
+ CHECK(meta->findInt32(kKeyChannelCount, &channelCount));
+ CHECK_EQ(channelCount, 1);
+ CHECK(meta->findInt32(kKeySampleRate, &sampleRate));
+ CHECK_EQ(sampleRate, (isWide ? 16000 : 8000));
+
+ mSource = source;
+
+ const char *kHeader = isWide ? "#!AMR-WB\n" : "#!AMR\n";
+ size_t n = strlen(kHeader);
+ if (fwrite(kHeader, 1, n, mFile) != n) {
+ return ERROR_IO;
+ }
+
+ return OK;
+}
+
+status_t AMRWriter::start() {
+ Mutex::Autolock autoLock(mLock);
+
+ if (mInitCheck != OK) {
+ return mInitCheck;
+ }
+
+ if (mStarted || mSource == NULL) {
+ return UNKNOWN_ERROR;
+ }
+
+ status_t err = mSource->start();
+
+ if (err != OK) {
+ return err;
+ }
+
+ pthread_attr_t attr;
+ pthread_attr_init(&attr);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
+
+ mDone = false;
+
+ pthread_create(&mThread, &attr, ThreadWrapper, this);
+ pthread_attr_destroy(&attr);
+
+ mStarted = true;
+
+ return OK;
+}
+
+void AMRWriter::stop() {
+ {
+ Mutex::Autolock autoLock(mLock);
+
+ if (!mStarted) {
+ return;
+ }
+
+ mDone = true;
+ }
+
+ void *dummy;
+ pthread_join(mThread, &dummy);
+
+ mSource->stop();
+
+ mStarted = false;
+}
+
+// static
+void *AMRWriter::ThreadWrapper(void *me) {
+ static_cast<AMRWriter *>(me)->threadFunc();
+
+ return NULL;
+}
+
+void AMRWriter::threadFunc() {
+ for (;;) {
+ Mutex::Autolock autoLock(mLock);
+
+ if (mDone) {
+ break;
+ }
+
+ MediaBuffer *buffer;
+ status_t err = mSource->read(&buffer);
+
+ if (err != OK) {
+ break;
+ }
+
+ ssize_t n = fwrite(
+ (const uint8_t *)buffer->data() + buffer->range_offset(),
+ 1,
+ buffer->range_length(),
+ mFile);
+
+ buffer->release();
+ buffer = NULL;
+
+ if (n < (ssize_t)buffer->range_length()) {
+ break;
+ }
+ }
+}
+
+} // namespace android
diff --git a/media/libstagefright/Android.mk b/media/libstagefright/Android.mk
index 26b9357..3813907 100644
--- a/media/libstagefright/Android.mk
+++ b/media/libstagefright/Android.mk
@@ -16,7 +16,9 @@ ifeq ($(BUILD_WITH_FULL_STAGEFRIGHT),true)
LOCAL_SRC_FILES += \
AMRExtractor.cpp \
+ AMRWriter.cpp \
AudioPlayer.cpp \
+ AudioSource.cpp \
AwesomePlayer.cpp \
CachingDataSource.cpp \
CameraSource.cpp \
diff --git a/media/libstagefright/AudioSource.cpp b/media/libstagefright/AudioSource.cpp
new file mode 100644
index 0000000..edabaf9
--- /dev/null
+++ b/media/libstagefright/AudioSource.cpp
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/stagefright/AudioSource.h>
+
+#include <media/AudioRecord.h>
+#include <media/stagefright/MediaBufferGroup.h>
+#include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/MetaData.h>
+
+namespace android {
+
+AudioSource::AudioSource(
+ int inputSource, uint32_t sampleRate, uint32_t channels)
+ : mRecord(new AudioRecord(
+ inputSource, sampleRate, AudioSystem::PCM_16_BIT, channels)),
+ mInitCheck(mRecord->initCheck()),
+ mStarted(false),
+ mGroup(NULL) {
+}
+
+AudioSource::~AudioSource() {
+ if (mStarted) {
+ stop();
+ }
+
+ delete mRecord;
+ mRecord = NULL;
+}
+
+status_t AudioSource::initCheck() const {
+ return mInitCheck;
+}
+
+status_t AudioSource::start(MetaData *params) {
+ if (mStarted) {
+ return UNKNOWN_ERROR;
+ }
+
+ status_t err = mRecord->start();
+
+ if (err == OK) {
+ mGroup = new MediaBufferGroup;
+ mGroup->add_buffer(new MediaBuffer(kMaxBufferSize));
+
+ mStarted = true;
+ }
+
+ return err;
+}
+
+status_t AudioSource::stop() {
+ if (!mStarted) {
+ return UNKNOWN_ERROR;
+ }
+
+ mRecord->stop();
+
+ delete mGroup;
+ mGroup = NULL;
+
+ mStarted = false;
+
+ return OK;
+}
+
+sp<MetaData> AudioSource::getFormat() {
+ sp<MetaData> meta = new MetaData;
+ meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RAW);
+ meta->setInt32(kKeySampleRate, mRecord->getSampleRate());
+ meta->setInt32(kKeyChannelCount, mRecord->channelCount());
+ meta->setInt32(kKeyMaxInputSize, kMaxBufferSize);
+
+ return meta;
+}
+
+status_t AudioSource::read(
+ MediaBuffer **out, const ReadOptions *options) {
+ *out = NULL;
+
+ MediaBuffer *buffer;
+ CHECK_EQ(mGroup->acquire_buffer(&buffer), OK);
+
+ uint32_t numFramesRecorded;
+ mRecord->getPosition(&numFramesRecorded);
+
+ buffer->meta_data()->setInt64(
+ kKeyTime,
+ (1000000ll * numFramesRecorded) / mRecord->getSampleRate()
+ - mRecord->latency() * 1000);
+
+ ssize_t n = mRecord->read(buffer->data(), buffer->size());
+
+ if (n < 0) {
+ buffer->release();
+ buffer = NULL;
+
+ return (status_t)n;
+ }
+
+ buffer->set_range(0, n);
+
+ *out = buffer;
+
+ return OK;
+}
+
+} // namespace android
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