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/*
* Copyright 2013, 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 "MediaMuxer"
#include "webm/WebmWriter.h"
#include <utils/Log.h>
#include <media/stagefright/MediaMuxer.h>
#include <media/stagefright/foundation/ABuffer.h>
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/foundation/AMessage.h>
#include <media/stagefright/MediaAdapter.h>
#include <media/stagefright/MediaBuffer.h>
#include <media/stagefright/MediaCodec.h>
#include <media/stagefright/MediaDefs.h>
#include <media/stagefright/MediaErrors.h>
#include <media/stagefright/MediaSource.h>
#include <media/stagefright/MetaData.h>
#include <media/stagefright/MPEG4Writer.h>
#include <media/stagefright/Utils.h>
#include <stagefright/AVExtensions.h>
namespace android {
MediaMuxer::MediaMuxer(int fd, OutputFormat format)
: mFormat(format),
mState(UNINITIALIZED) {
if (format == OUTPUT_FORMAT_MPEG_4) {
mWriter = AVFactory::get()->CreateMPEG4Writer(fd);
} else if (format == OUTPUT_FORMAT_WEBM) {
mWriter = new WebmWriter(fd);
}
if (mWriter != NULL) {
mFileMeta = new MetaData;
mState = INITIALIZED;
}
}
MediaMuxer::~MediaMuxer() {
Mutex::Autolock autoLock(mMuxerLock);
// Clean up all the internal resources.
mFileMeta.clear();
mWriter.clear();
mTrackList.clear();
}
ssize_t MediaMuxer::addTrack(const sp<AMessage> &format) {
Mutex::Autolock autoLock(mMuxerLock);
if (format.get() == NULL) {
ALOGE("addTrack() get a null format");
return -EINVAL;
}
if (mState != INITIALIZED) {
ALOGE("addTrack() must be called after constructor and before start().");
return INVALID_OPERATION;
}
sp<MetaData> trackMeta = new MetaData;
convertMessageToMetaData(format, trackMeta);
sp<MediaAdapter> newTrack = new MediaAdapter(trackMeta);
status_t result = mWriter->addSource(newTrack);
if (result == OK) {
return mTrackList.add(newTrack);
}
return -1;
}
status_t MediaMuxer::setOrientationHint(int degrees) {
Mutex::Autolock autoLock(mMuxerLock);
if (mState != INITIALIZED) {
ALOGE("setOrientationHint() must be called before start().");
return INVALID_OPERATION;
}
if (degrees != 0 && degrees != 90 && degrees != 180 && degrees != 270) {
ALOGE("setOrientationHint() get invalid degrees");
return -EINVAL;
}
mFileMeta->setInt32(kKeyRotation, degrees);
return OK;
}
status_t MediaMuxer::setLocation(int latitude, int longitude) {
Mutex::Autolock autoLock(mMuxerLock);
if (mState != INITIALIZED) {
ALOGE("setLocation() must be called before start().");
return INVALID_OPERATION;
}
if (mFormat != OUTPUT_FORMAT_MPEG_4) {
ALOGE("setLocation() is only supported for .mp4 output.");
return INVALID_OPERATION;
}
ALOGV("Setting location: latitude = %d, longitude = %d", latitude, longitude);
return static_cast<MPEG4Writer*>(mWriter.get())->setGeoData(latitude, longitude);
}
status_t MediaMuxer::start() {
Mutex::Autolock autoLock(mMuxerLock);
if (mState == INITIALIZED) {
mState = STARTED;
mFileMeta->setInt32(kKeyRealTimeRecording, false);
return mWriter->start(mFileMeta.get());
} else {
ALOGE("start() is called in invalid state %d", mState);
return INVALID_OPERATION;
}
}
status_t MediaMuxer::stop() {
Mutex::Autolock autoLock(mMuxerLock);
if (mState == STARTED) {
mState = STOPPED;
for (size_t i = 0; i < mTrackList.size(); i++) {
if (mTrackList[i]->stop() != OK) {
return INVALID_OPERATION;
}
}
return mWriter->stop();
} else {
ALOGE("stop() is called in invalid state %d", mState);
return INVALID_OPERATION;
}
}
status_t MediaMuxer::writeSampleData(const sp<ABuffer> &buffer, size_t trackIndex,
int64_t timeUs, uint32_t flags) {
Mutex::Autolock autoLock(mMuxerLock);
if (buffer.get() == NULL) {
ALOGE("WriteSampleData() get an NULL buffer.");
return -EINVAL;
}
if (mState != STARTED) {
ALOGE("WriteSampleData() is called in invalid state %d", mState);
return INVALID_OPERATION;
}
if (trackIndex >= mTrackList.size()) {
ALOGE("WriteSampleData() get an invalid index %zu", trackIndex);
return -EINVAL;
}
MediaBuffer* mediaBuffer = new MediaBuffer(buffer);
mediaBuffer->add_ref(); // Released in MediaAdapter::signalBufferReturned().
mediaBuffer->set_range(buffer->offset(), buffer->size());
sp<MetaData> sampleMetaData = mediaBuffer->meta_data();
sampleMetaData->setInt64(kKeyTime, timeUs);
// Just set the kKeyDecodingTime as the presentation time for now.
sampleMetaData->setInt64(kKeyDecodingTime, timeUs);
if (flags & MediaCodec::BUFFER_FLAG_SYNCFRAME) {
sampleMetaData->setInt32(kKeyIsSyncFrame, true);
}
sp<MediaAdapter> currentTrack = mTrackList[trackIndex];
// This pushBuffer will wait until the mediaBuffer is consumed.
return currentTrack->pushBuffer(mediaBuffer);
}
} // namespace android
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