transcoding: hooking up real transcoder in service (66469276) · Commits · e / os / android_frameworks_av

media/libmediatranscoding/Android.bp

+3 −0

Original line number	Diff line number	Diff line
		@@ -48,6 +48,8 @@ cc_library_shared {
		"TranscodingClientManager.cpp",
		"TranscodingJobScheduler.cpp",
		"TranscodingUidPolicy.cpp",
		"TranscoderWrapper.cpp",
		"NdkCommon.cpp",
		],

		shared_libs: [
		@@ -57,6 +59,7 @@ cc_library_shared {
		"libutils",
		"libmediatranscoder",
		"libbinder",
		"libmediandk",
		],

		export_include_dirs: ["include"],

media/libmediatranscoding/NdkCommon.cpp

0 → 100644

+40 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2020 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 "NdkCommon"
		#include <log/log.h>
		#include <media/NdkCommon.h>

		#include <cstdio>
		#include <cstring>
		#include <utility>

		/* TODO(b/153592281)
		* Note: constants used by the native media tests but not available in media ndk api
		*/
		const char* AMEDIA_MIMETYPE_VIDEO_VP8 = "video/x-vnd.on2.vp8";
		const char* AMEDIA_MIMETYPE_VIDEO_VP9 = "video/x-vnd.on2.vp9";
		const char* AMEDIA_MIMETYPE_VIDEO_AV1 = "video/av01";
		const char* AMEDIA_MIMETYPE_VIDEO_AVC = "video/avc";
		const char* AMEDIA_MIMETYPE_VIDEO_HEVC = "video/hevc";
		const char* AMEDIA_MIMETYPE_VIDEO_MPEG4 = "video/mp4v-es";
		const char* AMEDIA_MIMETYPE_VIDEO_H263 = "video/3gpp";

		/* TODO(b/153592281) */
		const char* TBD_AMEDIACODEC_PARAMETER_KEY_REQUEST_SYNC_FRAME = "request-sync";
		const char* TBD_AMEDIACODEC_PARAMETER_KEY_VIDEO_BITRATE = "video-bitrate";
		const char* TBD_AMEDIACODEC_PARAMETER_KEY_MAX_B_FRAMES = "max-bframes";
		const char* TBD_AMEDIAFORMAT_KEY_BIT_RATE_MODE = "bitrate-mode";

media/libmediatranscoding/TranscoderWrapper.cpp

0 → 100644

+346 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2020 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 "TranscoderWrapper"

		#include <aidl/android/media/TranscodingErrorCode.h>
		#include <aidl/android/media/TranscodingRequestParcel.h>
		#include <media/MediaTranscoder.h>
		#include <media/NdkCommon.h>
		#include <media/TranscoderWrapper.h>
		#include <utils/Log.h>

		#include <thread>

		namespace android {
		using Status = ::ndk::ScopedAStatus;
		using ::aidl::android::media::TranscodingErrorCode;
		using ::aidl::android::media::TranscodingVideoCodecType;
		using ::aidl::android::media::TranscodingVideoTrackFormat;

		static TranscodingErrorCode toTranscodingError(media_status_t status) {
		switch (status) {
		case AMEDIA_OK:
		return TranscodingErrorCode::kNoError;
		case AMEDIACODEC_ERROR_INSUFFICIENT_RESOURCE: // FALLTHRU
		case AMEDIACODEC_ERROR_RECLAIMED:
		return TranscodingErrorCode::kInsufficientResources;
		case AMEDIA_ERROR_MALFORMED:
		return TranscodingErrorCode::kMalformed;
		case AMEDIA_ERROR_UNSUPPORTED:
		return TranscodingErrorCode::kUnsupported;
		case AMEDIA_ERROR_INVALID_OBJECT: // FALLTHRU
		case AMEDIA_ERROR_INVALID_PARAMETER:
		return TranscodingErrorCode::kInvalidParameter;
		case AMEDIA_ERROR_INVALID_OPERATION:
		return TranscodingErrorCode::kInvalidOperation;
		case AMEDIA_ERROR_IO:
		return TranscodingErrorCode::kErrorIO;
		case AMEDIA_ERROR_UNKNOWN: // FALLTHRU
		default:
		return TranscodingErrorCode::kUnknown;
		}
		}

		//static
		const char* TranscoderWrapper::toString(Event::Type type) {
		switch (type) {
		case Event::Start:
		return "Start";
		case Event::Pause:
		return "Pause";
		case Event::Resume:
		return "Resume";
		case Event::Stop:
		return "Stop";
		case Event::Finish:
		return "Finish";
		case Event::Error:
		return "Error";
		default:
		break;
		}
		return "(unknown)";
		}

		class TranscoderWrapper::CallbackImpl : public MediaTranscoder::CallbackInterface {
		public:
		CallbackImpl(const std::shared_ptr<TranscoderWrapper>& owner, ClientIdType clientId,
		JobIdType jobId)
		: mOwner(owner), mClientId(clientId), mJobId(jobId) {}

		virtual void onFinished(const MediaTranscoder* transcoder __unused) override {
		auto owner = mOwner.lock();
		if (owner != nullptr) {
		owner->onFinish(mClientId, mJobId);
		}
		}

		virtual void onError(const MediaTranscoder* transcoder __unused,
		media_status_t error) override {
		auto owner = mOwner.lock();
		if (owner != nullptr) {
		owner->onError(mClientId, mJobId, toTranscodingError(error));
		}
		}

		virtual void onProgressUpdate(const MediaTranscoder* transcoder __unused,
		int32_t progress) override {
		ALOGV("%s: job {%lld, %d}, progress %d", __FUNCTION__, (long long)mClientId, mJobId,
		progress);
		}

		virtual void onCodecResourceLost(const MediaTranscoder* transcoder __unused,
		const std::shared_ptr<const Parcelable>& pausedState
		__unused) override {
		ALOGV("%s: job {%lld, %d}", __FUNCTION__, (long long)mClientId, mJobId);
		}

		private:
		std::weak_ptr<TranscoderWrapper> mOwner;
		ClientIdType mClientId;
		JobIdType mJobId;
		};

		TranscoderWrapper::TranscoderWrapper() : mCurrentClientId(0), mCurrentJobId(-1) {
		std::thread(&TranscoderWrapper::threadLoop, this).detach();
		}

		void TranscoderWrapper::setCallback(const std::shared_ptr<TranscoderCallbackInterface>& cb) {
		mCallback = cb;
		}

		void TranscoderWrapper::start(ClientIdType clientId, JobIdType jobId,
		const TranscodingRequestParcel& request,
		const std::shared_ptr<ITranscodingClientCallback>& callback) {
		queueEvent(Event::Start, clientId, jobId, [=] {
		TranscodingErrorCode err = handleStart(clientId, jobId, request, callback);

		if (err != TranscodingErrorCode::kNoError) {
		cleanup();

		auto callback = mCallback.lock();
		if (callback != nullptr) {
		callback->onError(clientId, jobId, err);
		}
		}
		});
		}

		void TranscoderWrapper::pause(ClientIdType clientId, JobIdType jobId) {
		queueEvent(Event::Pause, clientId, jobId, [] {});
		}

		void TranscoderWrapper::resume(ClientIdType clientId, JobIdType jobId) {
		queueEvent(Event::Resume, clientId, jobId, [] {});
		}

		void TranscoderWrapper::stop(ClientIdType clientId, JobIdType jobId) {
		queueEvent(Event::Stop, clientId, jobId, [=] {
		if (clientId != mCurrentClientId \|\| jobId != mCurrentJobId) {
		ALOGW("Stopping job {%lld, %d} that's not current job {%lld, %d}", (long long)clientId,
		jobId, (long long)mCurrentClientId, mCurrentJobId);
		}

		// stop transcoder.
		media_status_t err = mTranscoder->cancel();
		if (err != AMEDIA_OK) {
		ALOGE("failed to stop transcoder: %d", err);
		} else {
		ALOGI("transcoder stopped");
		}

		cleanup();
		});
		}

		void TranscoderWrapper::onFinish(ClientIdType clientId, JobIdType jobId) {
		queueEvent(Event::Finish, clientId, jobId, [=] {
		cleanup();

		auto callback = mCallback.lock();
		if (callback != nullptr) {
		callback->onFinish(clientId, jobId);
		}
		});
		}

		void TranscoderWrapper::onError(ClientIdType clientId, JobIdType jobId,
		TranscodingErrorCode error) {
		queueEvent(Event::Error, clientId, jobId, [=] {
		cleanup();

		auto callback = mCallback.lock();
		if (callback != nullptr) {
		callback->onError(clientId, jobId, error);
		}
		});
		}

		static AMediaFormat* getVideoFormat(
		const char* originalMime,
		const std::optional<TranscodingVideoTrackFormat>& requestedFormat) {
		if (requestedFormat == std::nullopt) {
		return nullptr;
		}

		AMediaFormat* format = AMediaFormat_new();
		bool changed = false;
		if (requestedFormat->codecType == TranscodingVideoCodecType::kHevc
		&& strcmp(originalMime, AMEDIA_MIMETYPE_VIDEO_HEVC)) {
		AMediaFormat_setString(format, AMEDIAFORMAT_KEY_MIME, AMEDIA_MIMETYPE_VIDEO_HEVC);
		changed = true;
		} else if (requestedFormat->codecType == TranscodingVideoCodecType::kAvc
		&& strcmp(originalMime, AMEDIA_MIMETYPE_VIDEO_AVC)) {
		AMediaFormat_setString(format, AMEDIAFORMAT_KEY_MIME, AMEDIA_MIMETYPE_VIDEO_AVC);
		changed = true;
		}
		if (requestedFormat->bitrateBps > 0) {
		AMediaFormat_setInt32(format, AMEDIAFORMAT_KEY_BIT_RATE, requestedFormat->bitrateBps);
		changed = true;
		}
		// TODO: translate other fields from requestedFormat to the format for MediaTranscoder.
		// Also need to determine more settings to expose in TranscodingVideoTrackFormat.
		if (!changed) {
		AMediaFormat_delete(format);
		// Use null format for passthru.
		format = nullptr;
		}
		return format;
		}

		TranscodingErrorCode TranscoderWrapper::handleStart(
		ClientIdType clientId, JobIdType jobId, const TranscodingRequestParcel& request,
		const std::shared_ptr<ITranscodingClientCallback>& clientCb) {
		if (clientCb == nullptr) {
		ALOGE("client callback is null");
		return TranscodingErrorCode::kInvalidParameter;
		}

		if (mTranscoder != nullptr) {
		ALOGE("transcoder already running");
		return TranscodingErrorCode::kInvalidOperation;
		}

		Status status;
		::ndk::ScopedFileDescriptor srcFd, dstFd;
		status = clientCb->openFileDescriptor(request.sourceFilePath, "r", &srcFd);
		if (!status.isOk() \|\| srcFd.get() < 0) {
		ALOGE("failed to open source");
		return TranscodingErrorCode::kErrorIO;
		}

		status = clientCb->openFileDescriptor(request.destinationFilePath, "w", &dstFd);
		if (!status.isOk() \|\| dstFd.get() < 0) {
		ALOGE("failed to open destination");
		return TranscodingErrorCode::kErrorIO;
		}

		mCurrentClientId = clientId;
		mCurrentJobId = jobId;
		mTranscoderCb = std::make_shared<CallbackImpl>(shared_from_this(), clientId, jobId);
		mTranscoder = MediaTranscoder::create(mTranscoderCb, nullptr);
		if (mTranscoder == nullptr) {
		ALOGE("failed to create transcoder");
		return TranscodingErrorCode::kUnknown;
		}

		media_status_t err = mTranscoder->configureSource(srcFd.get());
		if (err != AMEDIA_OK) {
		ALOGE("failed to configure source: %d", err);
		return toTranscodingError(err);
		}

		std::vector<std::shared_ptr<AMediaFormat>> trackFormats = mTranscoder->getTrackFormats();
		if (trackFormats.size() == 0) {
		ALOGE("failed to get track formats!");
		return TranscodingErrorCode::kMalformed;
		}

		for (int i = 0; i < trackFormats.size(); ++i) {
		AMediaFormat* format = nullptr;
		const char* mime = nullptr;
		AMediaFormat_getString(trackFormats[i].get(), AMEDIAFORMAT_KEY_MIME, &mime);

		if (!strncmp(mime, "video/", 6)) {
		format = getVideoFormat(mime, request.requestedVideoTrackFormat);
		}

		err = mTranscoder->configureTrackFormat(i, format);
		if (format != nullptr) {
		AMediaFormat_delete(format);
		}
		if (err != AMEDIA_OK) {
		ALOGE("failed to configure track format for track %d: %d", i, err);
		return toTranscodingError(err);
		}
		}

		err = mTranscoder->configureDestination(dstFd.get());
		if (err != AMEDIA_OK) {
		ALOGE("failed to configure dest: %d", err);
		return toTranscodingError(err);
		}

		err = mTranscoder->start();
		if (err != AMEDIA_OK) {
		ALOGE("failed to start transcoder: %d", err);
		return toTranscodingError(err);
		}

		ALOGI("transcoder started");
		return TranscodingErrorCode::kNoError;
		}

		void TranscoderWrapper::cleanup() {
		mCurrentClientId = 0;
		mCurrentJobId = -1;
		mTranscoderCb = nullptr;
		mTranscoder = nullptr;
		}

		void TranscoderWrapper::queueEvent(Event::Type type, ClientIdType clientId, JobIdType jobId,
		const std::function<void()> runnable) {
		ALOGV("%s: job {%lld, %d}: %s", __FUNCTION__, (long long)clientId, jobId, toString(type));

		std::scoped_lock lock{mLock};

		mQueue.push_back({type, clientId, jobId, runnable});
		mCondition.notify_one();
		}

		void TranscoderWrapper::threadLoop() {
		std::unique_lock<std::mutex> lock{mLock};
		// TranscoderWrapper currently lives in the transcoding service, as long as
		// MediaTranscodingService itself.
		while (true) {
		// Wait for the next event.
		while (mQueue.empty()) {
		mCondition.wait(lock);
		}

		Event event = *mQueue.begin();
		mQueue.pop_front();

		ALOGD("%s: job {%lld, %d}: %s", __FUNCTION__, (long long)event.clientId, event.jobId,
		toString(event.type));

		event.runnable();
		}
		}

		} // namespace android

media/libmediatranscoding/TranscodingJobScheduler.cpp

+4 −2

Original line number	Diff line number	Diff line
		@@ -76,7 +76,8 @@ void TranscodingJobScheduler::updateCurrentJob_l() {
		// the topJob now.
		if (!mResourceLost) {
		if (topJob->state == Job::NOT_STARTED) {
		mTranscoder->start(topJob->key.first, topJob->key.second, topJob->request);
		mTranscoder->start(topJob->key.first, topJob->key.second, topJob->request,
		topJob->callback.lock());
		} else if (topJob->state == Job::PAUSED) {
		mTranscoder->resume(topJob->key.first, topJob->key.second);
		}
		@@ -349,7 +350,8 @@ void TranscodingJobScheduler::onFinish(ClientIdType clientId, JobIdType jobId) {
		{
		auto clientCallback = mJobMap[jobKey].callback.lock();
		if (clientCallback != nullptr) {
		clientCallback->onTranscodingFinished(jobId, TranscodingResultParcel({jobId, -1 /actualBitrateBps/}));
		clientCallback->onTranscodingFinished(
		jobId, TranscodingResultParcel({jobId, -1 /actualBitrateBps/}));
		}
		}

media/libmediatranscoding/aidl/android/media/TranscodingErrorCode.aidl

+8 −7

Original line number	Diff line number	Diff line
		@@ -23,11 +23,12 @@ package android.media;
		*/
		@Backing(type = "int")
		enum TranscodingErrorCode {
		kUnknown = 0,
		kUnsupported = 1,
		kDecoderError = 2,
		kEncoderError = 3,
		kExtractorError = 4,
		kMuxerError = 5,
		kInvalidBitstream = 6
		kNoError = 0,
		kUnknown = 1,
		kMalformed = 2,
		kUnsupported = 3,
		kInvalidParameter = 4,
		kInvalidOperation = 5,
		kErrorIO = 6,
		kInsufficientResources = 7,
		}
		No newline at end of file