MediaPlayer2: use AudioManager.isOffloadedPlaybackSupported (946bdb36) · Commits · e / os / android_frameworks_av

media/libmediaplayer2/nuplayer2/Android.bp

+3 −0

Original line number	Diff line number	Diff line
		cc_library_static {

		srcs: [
		"JMediaPlayer2Utils.cpp",
		"JWakeLock.cpp",
		"GenericSource2.cpp",
		"HTTPLiveSource2.cpp",
		@@ -29,6 +30,7 @@ cc_library_static {
		"frameworks/av/media/libstagefright/rtsp",
		"frameworks/av/media/libstagefright/timedtext",
		"frameworks/av/media/ndk",
		"frameworks/base/core/jni",
		],

		cflags: [
		@@ -57,6 +59,7 @@ cc_library_static {
		static_libs: [
		"libmedia_helper",
		"libmediaplayer2-protos",
		"libmedia2_jni_core",
		],

		name: "libstagefright_nuplayer2",

media/libmediaplayer2/nuplayer2/JMediaPlayer2Utils.cpp

0 → 100644

+66 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright 2018, 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 "JMediaPlayer2Utils"

		#include "JMediaPlayer2Utils.h"
		#include <mediaplayer2/JavaVMHelper.h>

		#include <media/stagefright/MediaDefs.h>
		#include <media/stagefright/Utils.h>
		#include <nativehelper/JNIHelp.h>
		#include <utils/Log.h>

		#include "log/log.h"

		namespace android {

		static const int64_t kOffloadMinDurationSec = 60;

		// static
		bool JMediaPlayer2Utils::isOffloadedAudioPlaybackSupported(
		const sp<MetaData>& meta, bool hasVideo, bool isStreaming, audio_stream_type_t streamType)
		{
		if (hasVideo \|\| streamType != AUDIO_STREAM_MUSIC) {
		return false;
		}

		audio_offload_info_t info = AUDIO_INFO_INITIALIZER;
		if (OK != getAudioOffloadInfo(meta, hasVideo, isStreaming, streamType, &info)) {
		return false;
		}

		if (info.duration_us < kOffloadMinDurationSec * 1000000) {
		return false;
		}

		int32_t audioFormat = audioFormatFromNative(info.format);
		int32_t channelMask = outChannelMaskFromNative(info.channel_mask);
		if (audioFormat == ENCODING_INVALID \|\| channelMask == CHANNEL_INVALID) {
		return false;
		}

		JNIEnv* env = JavaVMHelper::getJNIEnv();
		jclass jMP2UtilsCls = env->FindClass("android/media/MediaPlayer2Utils");
		jmethodID jSetAudioOutputDeviceById = env->GetStaticMethodID(
		jMP2UtilsCls, "isOffloadedAudioPlaybackSupported", "(III)Z");
		jboolean result = env->CallStaticBooleanMethod(
		jMP2UtilsCls, jSetAudioOutputDeviceById, audioFormat, info.sample_rate, channelMask);
		return result;
		}

		} // namespace android

media/libmediaplayer2/nuplayer2/JMediaPlayer2Utils.h

0 → 100644

+35 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright 2018, 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 _J_MEDIAPLAYER2_UTILS2_H_
		#define _J_MEDIAPLAYER2_UTILS2_H_

		#include <media/stagefright/MetaData.h>

		#include "jni.h"
		#include "android_media_AudioFormat.h"

		namespace android {

		struct JMediaPlayer2Utils {
		static bool isOffloadedAudioPlaybackSupported(
		const sp<MetaData>& meta, bool hasVideo, bool isStreaming,
		audio_stream_type_t streamType);
		};

		} // namespace android

		#endif // _J_MEDIAPLAYER2_UTILS2_H_

media/libmediaplayer2/nuplayer2/NuPlayer2.cpp

+3 −1

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@
		#include "NuPlayer2.h"

		#include "HTTPLiveSource2.h"
		#include "JMediaPlayer2Utils.h"
		#include "NuPlayer2CCDecoder.h"
		#include "NuPlayer2Decoder.h"
		#include "NuPlayer2DecoderBase.h"
		@@ -1699,7 +1700,8 @@ void NuPlayer2::onStart(bool play) {
		}

		mOffloadAudio =
		canOffloadStream(audioMeta, hasVideo, mCurrentSourceInfo.mSource->isStreaming(), streamType)
		JMediaPlayer2Utils::isOffloadedAudioPlaybackSupported(
		audioMeta, hasVideo, mCurrentSourceInfo.mSource->isStreaming(), streamType)
		&& (mPlaybackSettings.mSpeed == 1.f && mPlaybackSettings.mPitch == 1.f);

		// Modular DRM: Disabling audio offload if the source is protected

media/libstagefright/Utils.cpp

+27 −18

Original line number	Diff line number	Diff line
		@@ -1830,43 +1830,43 @@ const struct aac_format_conv_t* p = &profileLookup[0];
		return;
		}

		bool canOffloadStream(const sp<MetaData>& meta, bool hasVideo,
		bool isStreaming, audio_stream_type_t streamType)
		status_t getAudioOffloadInfo(const sp<MetaData>& meta, bool hasVideo,
		bool isStreaming, audio_stream_type_t streamType, audio_offload_info_t *info)
		{
		const char *mime;
		if (meta == NULL) {
		return false;
		return BAD_VALUE;
		}
		CHECK(meta->findCString(kKeyMIMEType, &mime));

		audio_offload_info_t info = AUDIO_INFO_INITIALIZER;
		(*info) = AUDIO_INFO_INITIALIZER;

		info.format = AUDIO_FORMAT_INVALID;
		if (mapMimeToAudioFormat(info.format, mime) != OK) {
		info->format = AUDIO_FORMAT_INVALID;
		if (mapMimeToAudioFormat(info->format, mime) != OK) {
		ALOGE(" Couldn't map mime type \"%s\" to a valid AudioSystem::audio_format !", mime);
		return false;
		return BAD_VALUE;
		} else {
		ALOGV("Mime type \"%s\" mapped to audio_format %d", mime, info.format);
		ALOGV("Mime type \"%s\" mapped to audio_format %d", mime, info->format);
		}

		if (AUDIO_FORMAT_INVALID == info.format) {
		if (AUDIO_FORMAT_INVALID == info->format) {
		// can't offload if we don't know what the source format is
		ALOGE("mime type \"%s\" not a known audio format", mime);
		return false;
		return BAD_VALUE;
		}

		// Redefine aac format according to its profile
		// Offloading depends on audio DSP capabilities.
		int32_t aacaot = -1;
		if (meta->findInt32(kKeyAACAOT, &aacaot)) {
		mapAACProfileToAudioFormat(info.format,(OMX_AUDIO_AACPROFILETYPE) aacaot);
		mapAACProfileToAudioFormat(info->format,(OMX_AUDIO_AACPROFILETYPE) aacaot);
		}

		int32_t srate = -1;
		if (!meta->findInt32(kKeySampleRate, &srate)) {
		ALOGV("track of type '%s' does not publish sample rate", mime);
		}
		info.sample_rate = srate;
		info->sample_rate = srate;

		int32_t cmask = 0;
		if (!meta->findInt32(kKeyChannelMask, &cmask) \|\| cmask == CHANNEL_MASK_USE_CHANNEL_ORDER) {
		@@ -1880,25 +1880,34 @@ bool canOffloadStream(const sp<MetaData>& meta, bool hasVideo,
		cmask = audio_channel_out_mask_from_count(channelCount);
		}
		}
		info.channel_mask = cmask;
		info->channel_mask = cmask;

		int64_t duration = 0;
		if (!meta->findInt64(kKeyDuration, &duration)) {
		ALOGV("track of type '%s' does not publish duration", mime);
		}
		info.duration_us = duration;
		info->duration_us = duration;

		int32_t brate = -1;
		if (!meta->findInt32(kKeyBitRate, &brate)) {
		ALOGV("track of type '%s' does not publish bitrate", mime);
		}
		info.bit_rate = brate;
		info->bit_rate = brate;


		info.stream_type = streamType;
		info.has_video = hasVideo;
		info.is_streaming = isStreaming;
		info->stream_type = streamType;
		info->has_video = hasVideo;
		info->is_streaming = isStreaming;
		return OK;
		}

		bool canOffloadStream(const sp<MetaData>& meta, bool hasVideo,
		bool isStreaming, audio_stream_type_t streamType)
		{
		audio_offload_info_t info = AUDIO_INFO_INITIALIZER;
		if (OK != getAudioOffloadInfo(meta, hasVideo, isStreaming, streamType, &info)) {
		return false;
		}
		// Check if offload is possible for given format, stream type, sample rate,
		// bit rate, duration, video and streaming
		return AudioSystem::isOffloadSupported(info);