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Commit 7113d2ab by Vignesh Venkatasubramanian
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Add Opus Native Extension 

Add Opus Native Extension that can be used to playback Opus using the native
libopus library.
parent dd726001
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extensions/opus/README.md 0 → 100644
# ExoPlayer Opus Extension #
## Description ##
The Opus Extension is a [Track Renderer][] implementation that helps you bundle libopus (the Opus decoding library) into your app and use it along with ExoPlayer to play Opus audio on Android devices.
[Track Renderer]: http://google.github.io/ExoPlayer/doc/reference/com/google/android/exoplayer/TrackRenderer.html
## Build Instructions (Android Studio and Eclipse) ##
Building the Opus Extension involves building libopus and JNI bindings using the Android NDK and linking it into your app. The following steps will tell you how to do that using Android Studio or Eclipse.
* Checkout ExoPlayer along with Extensions
```
git clone https://github.com/google/ExoPlayer.git
```
* Set the following environment variables:
```
cd "<path to exoplayer checkout>"
EXOPLAYER_ROOT="$(pwd)"
OPUS_EXT_PATH="${EXOPLAYER_ROOT}/extensions/opus/src/main"
```
* Download the [Android NDK][] and set its location in an environment variable:
```
NDK_PATH="<path to Android NDK>"
```
* Fetch libopus
```
cd "${OPUS_EXT_PATH}/jni" && \
git clone git://git.opus-codec.org/opus.git libopus
```
* Run the script to convert arm assembly to NDK compatible format
```
cd ${OPUS_EXT_PATH}/jni && ./convert_android_asm.sh
```
### Android Studio ###
For Android Studio, we build the native libraries from the command line and then Gradle will pick it up when building your app using Android Studio.
* Build the JNI native libraries
```
cd "${OPUS_EXT_PATH}"/jni && \
${NDK_PATH}/ndk-build APP_ABI=all -j4
```
* In your project, you can add a dependency to the Opus Extension by using a rule like this:
```
// in settings.gradle
include ':..:ExoPlayer:library'
include ':..:ExoPlayer:opus-extension'
// in build.gradle
dependencies {
compile project(':..:ExoPlayer:library')
compile project(':..:ExoPlayer:opus-extension')
}
```
* Now, when you build your app, the Opus extension will be built and the native libraries will be packaged along with the APK.
### Eclipse ###
* The following steps assume that you have installed Eclipse and configured it with the [Android SDK][] and [Android NDK ][]:
* Navigate to File->Import->General->Existing Projects into Workspace
* Select the root directory of the repository
* Import the following projects:
* ExoPlayerLib
* ExoPlayerExt-Opus
* If you are able to build ExoPlayerExt-Opus project, then you're all set.
* (Optional) To speed up the NDK build:
* Right click on ExoPlayerExt-Opus in the Project Explorer pane and choose Properties
* Click on C/C++ Build
* Uncheck `Use default build command`
* In `Build Command` enter: `ndk-build -j4` (adjust 4 to a reasonable number depending on the number of cores in your computer)
* Click Apply
You can now create your own Android App project and add ExoPlayerLib along with ExoPlayerExt-Opus as a dependencies to use ExoPlayer along with the Opus Extension.
[Android NDK]: https://developer.android.com/tools/sdk/ndk/index.html
<!---
Work around to point to two different links for the same text.
-->
[Android NDK ]: http://tools.android.com/recent/usingthendkplugin
[Android SDK]: http://developer.android.com/sdk/installing/index.html?pkg=tools
## Building for various Architectures ##
### Android Studio ###
The manual invocation of `ndk-build` will build the library for all architectures and the correct one will be picked up from the APK based on the device its running on.
### Eclipse ###
libopus can be built for the following architectures:
* armeabi (the default - does not include neon optimizations)
* armeabi-v7a (choose this to enable neon optimizations)
* mips
* x86
* all (will result in a larger binary but will cover all architectures)
You can build for a specific architecture in two ways:
* Method 1 (edit `Application.mk`)
* Edit `${OPUS_EXT_PATH}/jni/Application.mk` and add the following line `APP_ABI := <arch>` (where `<arch>` is one of the above 4 architectures)
* Method 2 (pass NDK build flag)
* Right click on ExoPlayerExt-Opus in the Project Explorer pane and choose Properties
* Click on C/C++ Build
* Uncheck `Use default build command`
* In `Build Command` enter: `ndk-build APP_ABI=<arch>` (where `<arch>` is one of the above 4 architectures)
* Click Apply
## Other Things to Note ##
* Every time there is a change to the libopus checkout:
* Arm assembly should be converted by running `convert_android_asm.sh`
* Clean and re-build the project.
* If you want to use your own version of libopus, place it in `${OPUS_EXT_PATH}/jni/libopus`.
extensions/opus/build.gradle 0 → 100644
// Copyright (C) 2014 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.
apply plugin: 'com.android.library'
android {
compileSdkVersion 21
buildToolsVersion "21.1.2"
defaultConfig {
minSdkVersion 9
targetSdkVersion 21
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}
lintOptions {
abortOnError false
}
sourceSets.main {
jniLibs.srcDir 'src/main/libs'
jni.srcDirs = [] // Disable the automatic ndk-build call by Android Studio.
}
}
dependencies {
compile project(':library')
}
extensions/opus/src/main/.classpath 0 → 100644
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.DEPENDENCIES"/>
<classpathentry kind="src" path="gen"/>
<classpathentry kind="src" path="java"/>
<classpathentry kind="src" path="/ExoPlayerLib"/>
<classpathentry kind="output" path="bin/classes"/>
</classpath>
extensions/opus/src/main/.cproject 0 → 100644
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?fileVersion 4.0.0?><cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
<storageModule moduleId="org.eclipse.cdt.core.settings">
<cconfiguration id="com.android.toolchain.gcc.423224913">
<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.android.toolchain.gcc.423224913" moduleId="org.eclipse.cdt.core.settings" name="Default">
<externalSettings/>
<extensions>
<extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.MakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
</extensions>
</storageModule>
<storageModule moduleId="cdtBuildSystem" version="4.0.0">
<configuration artifactName="${ProjName}" buildProperties="" description="" id="com.android.toolchain.gcc.423224913" name="Default" parent="org.eclipse.cdt.build.core.emptycfg">
<folderInfo id="com.android.toolchain.gcc.423224913.1376674556" name="/" resourcePath="">
<toolChain id="com.android.toolchain.gcc.1798416430" name="Android GCC" superClass="com.android.toolchain.gcc">
<targetPlatform binaryParser="org.eclipse.cdt.core.ELF" id="com.android.targetPlatform.1132129264" isAbstract="false" superClass="com.android.targetPlatform"/>
<builder buildPath="${workspace_loc:/ExoPlayerExt-Opus}/jni" id="com.android.builder.532503968" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Android Builder" superClass="com.android.builder">
<outputEntries>
<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="outputPath" name="obj"/>
<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="outputPath" name="libs"/>
</outputEntries>
</builder>
<tool id="com.android.gcc.compiler.906450637" name="Android GCC Compiler" superClass="com.android.gcc.compiler">
<inputType id="com.android.gcc.inputType.835889068" superClass="com.android.gcc.inputType"/>
</tool>
</toolChain>
</folderInfo>
<sourceEntries>
<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="jni"/>
</sourceEntries>
</configuration>
</storageModule>
<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
</cconfiguration>
</storageModule>
<storageModule moduleId="cdtBuildSystem" version="4.0.0">
<project id="ExoPlayerExt-Opus.null.1840202624" name="ExoPlayerExt-Opus"/>
</storageModule>
<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
<storageModule moduleId="scannerConfiguration">
<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
<scannerConfigBuildInfo instanceId="com.android.toolchain.gcc.423224913;com.android.toolchain.gcc.423224913.1376674556;com.android.gcc.compiler.906450637;com.android.gcc.inputType.835889068">
<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="com.android.AndroidPerProjectProfile"/>
</scannerConfigBuildInfo>
</storageModule>
<storageModule moduleId="refreshScope" versionNumber="2">
<configuration configurationName="Default">
<resource resourceType="PROJECT" workspacePath="/ExoPlayerExt-Opus"/>
</configuration>
</storageModule>
</cproject>
extensions/opus/src/main/.project 0 → 100644
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>ExoPlayerExt-Opus</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
<triggers>clean,full,incremental,</triggers>
<arguments>
<dictionary>
<key>?children?</key>
<value>?name?=outputEntries\|?children?=?name?=entry\\\\\\\|\\\|?name?=entry\\\\\\\|\\\|\||</value>
</dictionary>
<dictionary>
<key>?name?</key>
<value></value>
</dictionary>
<dictionary>
<key>org.eclipse.cdt.make.core.append_environment</key>
<value>true</value>
</dictionary>
<dictionary>
<key>org.eclipse.cdt.make.core.buildArguments</key>
<value></value>
</dictionary>
<dictionary>
<key>org.eclipse.cdt.make.core.buildCommand</key>
<value>ndk-build</value>
</dictionary>
<dictionary>
<key>org.eclipse.cdt.make.core.cleanBuildTarget</key>
<value>clean</value>
</dictionary>
<dictionary>
<key>org.eclipse.cdt.make.core.contents</key>
<value>org.eclipse.cdt.make.core.activeConfigSettings</value>
</dictionary>
<dictionary>
<key>org.eclipse.cdt.make.core.enableAutoBuild</key>
<value>false</value>
</dictionary>
<dictionary>
<key>org.eclipse.cdt.make.core.enableCleanBuild</key>
<value>true</value>
</dictionary>
<dictionary>
<key>org.eclipse.cdt.make.core.enableFullBuild</key>
<value>true</value>
</dictionary>
<dictionary>
<key>org.eclipse.cdt.make.core.stopOnError</key>
<value>true</value>
</dictionary>
<dictionary>
<key>org.eclipse.cdt.make.core.useDefaultBuildCmd</key>
<value>true</value>
</dictionary>
</arguments>
</buildCommand>
<buildCommand>
<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>com.android.ide.eclipse.adt.ApkBuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
<triggers>full,incremental,</triggers>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
<nature>org.eclipse.jdt.core.javanature</nature>
<nature>org.eclipse.cdt.core.cnature</nature>
<nature>org.eclipse.cdt.core.ccnature</nature>
<nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
<nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
</natures>
</projectDescription>
extensions/opus/src/main/AndroidManifest.xml 0 → 100644
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2014 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.
-->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.google.android.exoplayer.ext.opus">
<uses-sdk android:minSdkVersion="9" android:targetSdkVersion="21"/>
</manifest>
extensions/opus/src/main/java/com/google/android/exoplayer/ext/opus/OpusDecoder.java 0 → 100644
/*
* Copyright (C) 2014 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.
*/
package com.google.android.exoplayer.ext.opus;
import com.google.android.exoplayer.ext.opus.OpusDecoderWrapper.OpusHeader;
import java.nio.ByteBuffer;
/**
* JNI Wrapper for the libopus Opus decoder.
*
* @author vigneshv@google.com (Vignesh Venkatasubramanian)
*/
/* package */ class OpusDecoder {
private final long nativeDecoderContext;
static {
System.loadLibrary("opusJNI");
}
/**
* Creates the Opus Decoder.
*
* @param opusHeader OpusHeader used to initialize the decoder.
* @throws OpusDecoderException if the decoder initialization fails.
*/
public OpusDecoder(OpusHeader opusHeader) throws OpusDecoderException {
nativeDecoderContext = opusInit(
opusHeader.sampleRate, opusHeader.channelCount, opusHeader.numStreams,
opusHeader.numCoupled, opusHeader.gain, opusHeader.streamMap);
if (nativeDecoderContext == 0) {
throw new OpusDecoderException("failed to initialize opus decoder");
}
}
/**
* Decodes an Opus Encoded Stream.
*
* @param inputBuffer buffer containing the encoded data. Must be allocated using allocateDirect.
* @param inputSize size of the input buffer.
* @param outputBuffer buffer to write the decoded data. Must be allocated using allocateDirect.
* @param outputSize Maximum capacity of the output buffer.
* @return number of decoded bytes.
* @throws OpusDecoderException if decode fails.
*/
public int decode(ByteBuffer inputBuffer, int inputSize, ByteBuffer outputBuffer,
int outputSize) throws OpusDecoderException {
int result = opusDecode(nativeDecoderContext, inputBuffer, inputSize, outputBuffer, outputSize);
if (result < 0) {
throw new OpusDecoderException(opusGetErrorMessage(result));
}
return result;
}
/**
* Closes the native decoder.
*/
public void close() {
opusClose(nativeDecoderContext);
}
/**
* Resets the native decode on discontinuity (during seek for example).
*/
public void reset() {
opusReset(nativeDecoderContext);
}
private native long opusInit(int sampleRate, int channelCount, int numStreams, int numCoupled,
int gain, byte[] streamMap);
private native int opusDecode(long decoder, ByteBuffer inputBuffer, int inputSize,
ByteBuffer outputBuffer, int outputSize);
private native void opusClose(long decoder);
private native void opusReset(long decoder);
private native String opusGetErrorMessage(int errorCode);
}
extensions/opus/src/main/java/com/google/android/exoplayer/ext/opus/OpusDecoderException.java 0 → 100644
/*
* Copyright (C) 2014 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.
*/
package com.google.android.exoplayer.ext.opus;
/**
* Thrown when an Opus decoder error occurs.
*/
public class OpusDecoderException extends Exception {
public OpusDecoderException(String message) {
super(message);
}
}
extensions/opus/src/main/jni/Android.mk 0 → 100644
#
# Copyright (C) 2014 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.
#
WORKING_DIR := $(call my-dir)
include $(CLEAR_VARS)
APP_PLATFORM := android-10
# build libopus.so
LOCAL_PATH := $(WORKING_DIR)
include libopus.mk
# build libopusJNI.so
include $(CLEAR_VARS)
LOCAL_PATH := $(WORKING_DIR)
LOCAL_MODULE := libopusJNI
LOCAL_ARM_MODE := arm
LOCAL_CPP_EXTENSION := .cc
LOCAL_SRC_FILES := opus_jni.cc
LOCAL_LDLIBS := -llog -lz -lm
LOCAL_SHARED_LIBRARIES := libopus
include $(BUILD_SHARED_LIBRARY)
extensions/opus/src/main/jni/Application.mk 0 → 100644
#
# Copyright (C) 2014 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
APP_OPTIM := release
APP_STL := gnustl_static
APP_CPPFLAGS := -frtti
extensions/opus/src/main/jni/convert_android_asm.sh 0 → 100755
#!/bin/bash
#
# Copyright (C) 2014 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
set -e
ASM_CONVERTER="./libopus/celt/arm/arm2gnu.pl"
if [[ ! -x "${ASM_CONVERTER}" ]]; then
echo "Please make sure you have checked out libopus."
exit
fi
while read file; do
# This check is required because the ASM conversion script doesn't seem to be
# idempotent.
if [[ ! "${file}" =~ .*_gnu\.s$ ]]; then
gnu_file="${file%.s}_gnu.s"
${ASM_CONVERTER} "${file}" > "${gnu_file}"
# The ASM conversion script replaces includes with *_gnu.S. So, replace
# occurences of "*-gnu.S" with "*_gnu.s".
sed -i "s/-gnu\.S/_gnu\.s/g" "${gnu_file}"
rm -f "${file}"
fi
done < <(find . -iname '*.s')
# Generate armopts.s from armopts.s.in
sed \
-e "s/@OPUS_ARM_MAY_HAVE_EDSP@/1/g" \
-e "s/@OPUS_ARM_MAY_HAVE_MEDIA@/1/g" \
-e "s/@OPUS_ARM_MAY_HAVE_NEON@/1/g" \
libopus/celt/arm/armopts.s.in > libopus/celt/arm/armopts.s.temp
${ASM_CONVERTER} "libopus/celt/arm/armopts.s.temp" > "libopus/celt/arm/armopts_gnu.s"
rm "libopus/celt/arm/armopts.s.temp"
echo "Converted all ASM files and generated armopts.s successfully."
extensions/opus/src/main/jni/libopus.mk 0 → 100644
#
# Copyright (C) 2014 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.
#
LOCAL_PATH := $(call my-dir)/libopus
include $(CLEAR_VARS)
include $(LOCAL_PATH)/celt_headers.mk
include $(LOCAL_PATH)/celt_sources.mk
include $(LOCAL_PATH)/opus_headers.mk
include $(LOCAL_PATH)/opus_sources.mk
include $(LOCAL_PATH)/silk_headers.mk
include $(LOCAL_PATH)/silk_sources.mk
LOCAL_MODULE := libopus
LOCAL_ARM_MODE := arm
LOCAL_CFLAGS := -DOPUS_BUILD -DFIXED_POINT -DUSE_ALLOCA -DHAVE_LRINT \
-DHAVE_LRINTF
LOCAL_C_INCLUDES := $(LOCAL_PATH)/include $(LOCAL_PATH)/src \
$(LOCAL_PATH)/silk $(LOCAL_PATH)/celt \
$(LOCAL_PATH)/silk/fixed
LOCAL_SRC_FILES := $(CELT_SOURCES) $(OPUS_SOURCES) $(OPUS_SOURCES_FLOAT) \
$(SILK_SOURCES) $(SILK_SOURCES_FIXED)
ifneq ($(findstring armeabi-v7a, $(TARGET_ARCH_ABI)),)
LOCAL_SRC_FILES += $(CELT_SOURCES_ARM)
LOCAL_SRC_FILES += celt/arm/armopts_gnu.s.neon
LOCAL_SRC_FILES += $(subst .s,_gnu.s.neon,$(CELT_SOURCES_ARM_ASM))
LOCAL_CFLAGS += -DOPUS_ARM_ASM -DOPUS_ARM_INLINE_ASM -DOPUS_ARM_INLINE_EDSP \
-DOPUS_ARM_INLINE_MEDIA -DOPUS_ARM_INLINE_NEON \
-DOPUS_ARM_MAY_HAVE_NEON -DOPUS_ARM_MAY_HAVE_MEDIA \
-DOPUS_ARM_MAY_HAVE_EDSP
endif
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
include $(BUILD_SHARED_LIBRARY)
extensions/opus/src/main/jni/opus_jni.cc 0 → 100644
/*
* Copyright (C) 2014 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 <jni.h>
#include <android/log.h>
#include <cstdlib>
#include "opus.h" // NOLINT
#include "opus_multistream.h" // NOLINT
#define LOG_TAG "libopus_native"
#define LOGE(...) ((void)__android_log_print(ANDROID_LOG_ERROR, LOG_TAG, \
__VA_ARGS__))
#define FUNC(RETURN_TYPE, NAME, ...) \
extern "C" { \
JNIEXPORT RETURN_TYPE \
Java_com_google_android_exoplayer_ext_opus_OpusDecoder_ ## NAME \
(JNIEnv* env, jobject thiz, ##__VA_ARGS__);\
} \
JNIEXPORT RETURN_TYPE \
Java_com_google_android_exoplayer_ext_opus_OpusDecoder_ ## NAME \
(JNIEnv* env, jobject thiz, ##__VA_ARGS__)\
jint JNI_OnLoad(JavaVM* vm, void* reserved) {
JNIEnv* env;
if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
return -1;
}
return JNI_VERSION_1_6;
}
static int channelCount;
FUNC(jlong, opusInit, jint sampleRate, jint channelCount, jint numStreams,
jint numCoupled, jint gain, jbyteArray jStreamMap) {
int status = OPUS_INVALID_STATE;
::channelCount = channelCount;
jbyte* streamMapBytes = env->GetByteArrayElements(jStreamMap, 0);
uint8_t* streamMap = reinterpret_cast<uint8_t*>(streamMapBytes);
OpusMSDecoder* decoder = opus_multistream_decoder_create(
sampleRate, channelCount, numStreams, numCoupled, streamMap, &status);
env->ReleaseByteArrayElements(jStreamMap, streamMapBytes, 0);
if (!decoder || status != OPUS_OK) {
LOGE("Failed to create Opus Decoder; status=%s", opus_strerror(status));
return 0;
}
status = opus_multistream_decoder_ctl(decoder, OPUS_SET_GAIN(gain));
if (status != OPUS_OK) {
LOGE("Failed to set Opus header gain; status=%s", opus_strerror(status));
return 0;
}
return reinterpret_cast<intptr_t>(decoder);
}
FUNC(jint, opusDecode, jlong jDecoder, jobject jInputBuffer, jint inputSize,
jobject jOutputBuffer, jint outputSize) {
OpusMSDecoder* decoder = reinterpret_cast<OpusMSDecoder*>(jDecoder);
const uint8_t* inputBuffer =
reinterpret_cast<const uint8_t*>(
env->GetDirectBufferAddress(jInputBuffer));
int16_t* outputBuffer = reinterpret_cast<int16_t*>(
env->GetDirectBufferAddress(jOutputBuffer));
int numFrames = opus_multistream_decode(decoder, inputBuffer, inputSize,
outputBuffer, outputSize, 0);
return (numFrames < 0) ? numFrames : numFrames * 2 * channelCount;
}
FUNC(void, opusClose, jlong jDecoder) {
OpusMSDecoder* decoder = reinterpret_cast<OpusMSDecoder*>(jDecoder);
opus_multistream_decoder_destroy(decoder);
}
FUNC(void, opusReset, jlong jDecoder) {
OpusMSDecoder* decoder = reinterpret_cast<OpusMSDecoder*>(jDecoder);
opus_multistream_decoder_ctl(decoder, OPUS_RESET_STATE);
}
FUNC(jstring, opusGetErrorMessage, jint errorCode) {
return env->NewStringUTF(opus_strerror(errorCode));
}
extensions/opus/src/main/project.properties 0 → 100644
# This file is automatically generated by Android Tools.
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
#
# This file must be checked in Version Control Systems.
#
# To customize properties used by the Ant build system edit
# "ant.properties", and override values to adapt the script to your
# project structure.
#
# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
# Project target.
target=android-21
android.library=true
android.library.reference.1=../../../../library/src/main
extensions/opus/src/main/res/.README.txt 0 → 100644
This file is needed to make sure the res directory is present.
The file is ignored by the Android toolchain because its name starts with a dot.
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