| /* |
| * 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 <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> |
| |
| namespace android { |
| |
| MediaMuxer::MediaMuxer(const char* pathOut) |
| : mState(INITED) { |
| mWriter = new MPEG4Writer(pathOut); |
| } |
| |
| MediaMuxer::MediaMuxer(int fd) |
| : mState(INITED) { |
| mWriter = new MPEG4Writer(fd); |
| } |
| |
| MediaMuxer::~MediaMuxer() { |
| Mutex::Autolock autoLock(mMuxerLock); |
| |
| // Clean up all the internal resources. |
| 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 != INITED) { |
| ALOGE("addTrack() must be called after constructor and before start()."); |
| return INVALID_OPERATION; |
| } |
| |
| sp<MetaData> meta = new MetaData; |
| convertMessageToMetaData(format, meta); |
| |
| sp<MediaAdapter> newTrack = new MediaAdapter(meta); |
| return mTrackList.add(newTrack); |
| } |
| |
| status_t MediaMuxer::start() { |
| Mutex::Autolock autoLock(mMuxerLock); |
| |
| if (mState == INITED) { |
| mState = STARTED; |
| for (size_t i = 0 ; i < mTrackList.size(); i++) { |
| mWriter->addSource(mTrackList[i]); |
| } |
| return mWriter->start(); |
| } 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++) { |
| mTrackList[i]->stop(); |
| } |
| 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); |
| |
| sp<MediaAdapter> currentTrack = mTrackList[trackIndex]; |
| |
| 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 %d", trackIndex); |
| return -EINVAL; |
| } |
| |
| MediaBuffer* mediaBuffer = new MediaBuffer(buffer); |
| |
| mediaBuffer->add_ref(); // Released in MediaAdapter::signalBufferReturned(). |
| mediaBuffer->set_range(buffer->offset(), buffer->size()); |
| |
| sp<MetaData> metaData = mediaBuffer->meta_data(); |
| metaData->setInt64(kKeyTime, timeUs); |
| // Just set the kKeyDecodingTime as the presentation time for now. |
| metaData->setInt64(kKeyDecodingTime, timeUs); |
| |
| if (flags & MediaCodec::BUFFER_FLAG_SYNCFRAME) { |
| metaData->setInt32(kKeyIsSyncFrame, true); |
| } |
| |
| // This pushBuffer will wait until the mediaBuffer is consumed. |
| return currentTrack->pushBuffer(mediaBuffer); |
| } |
| |
| } // namespace android |