Use reflection to create AudioRecord

Genymobile · Mar 26, 2023 · 92e7bcb · 92e7bcb
1 parent 2fff9b9
commit 92e7bcb
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Showing 6 changed files with 657 additions and 1 deletion.
diff --git a/server/build.gradle b/server/build.gradle
@@ -24,3 +24,9 @@ dependencies {
 }
 
 apply from: "$project.rootDir/config/android-checkstyle.gradle"
+
+android {
+    lintOptions {
+        baseline file("lint-baseline.xml")
+    }
+}
diff --git a/server/lint-baseline.xml b/server/lint-baseline.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="6" by="lint 7.4.0" type="baseline" client="gradle" dependencies="false" name="AGP (7.4.0)" variant="fatal" version="7.4.0">
+
+    <issue
+        id="BlockedPrivateApi"
+        message="Reflective access to withPackageName is forbidden when targeting API 33 and above"
+        errorLine1="                    Method withPackageNameMethod = AttributionSource.class.getDeclaredMethod(&quot;withPackageName&quot;,"
+        errorLine2="                                                   ^">
+        <location
+            file="src/main/java/com/genymobile/scrcpy/wrappers/AudioRecordWrapper.java"
+            line="231"
+            column="52"/>
+    </issue>
+
+    <issue
+        id="BlockedPrivateApi"
+        message="Reflective access to asScopedParcelState is forbidden when targeting API 33 and above"
+        errorLine1="                Method asScopedParcelStateMethod = AttributionSource.class.getDeclaredMethod(&quot;asScopedParcelState&quot;);"
+        errorLine2="                                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="src/main/java/com/genymobile/scrcpy/wrappers/AudioRecordWrapper.java"
+            line="240"
+            column="52"/>
+    </issue>
+
+    <issue
+        id="BlockedPrivateApi"
+        message="Reflective access to mPrivacySensitive is forbidden when targeting API 33 and above"
+        errorLine1="            Field mPrivacySensitiveField = AudioRecord.Builder.class.getDeclaredField(&quot;mPrivacySensitive&quot;);"
+        errorLine2="                                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="src/main/java/com/genymobile/scrcpy/wrappers/AudioRecordWrapper.java"
+            line="326"
+            column="44"/>
+    </issue>
+
+    <issue
+        id="BlockedPrivateApi"
+        message="Reflective access to mContext is forbidden when targeting API 33 and above"
+        errorLine1="                Field mContextField = AudioRecord.Builder.class.getDeclaredField(&quot;mContext&quot;);"
+        errorLine2="                                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="src/main/java/com/genymobile/scrcpy/wrappers/AudioRecordWrapper.java"
+            line="364"
+            column="39"/>
+    </issue>
+
+</issues>
diff --git a/server/src/main/java/com/genymobile/scrcpy/AudioCapture.java b/server/src/main/java/com/genymobile/scrcpy/AudioCapture.java
@@ -1,5 +1,6 @@
 package com.genymobile.scrcpy;
 
+import com.genymobile.scrcpy.wrappers.AudioRecordWrapper;
 import com.genymobile.scrcpy.wrappers.ServiceManager;
 
 import android.annotation.SuppressLint;
@@ -55,7 +56,12 @@ private static AudioRecord createAudioRecord() {
         int minBufferSize = AudioRecord.getMinBufferSize(SAMPLE_RATE, CHANNEL_CONFIG, FORMAT);
         // This buffer size does not impact latency
         builder.setBufferSizeInBytes(8 * minBufferSize);
-        return builder.build();
+
+        try {
+            return builder.build();
+        } catch (Exception e) {
+            return AudioRecordWrapper.build(builder);
+        }
     }
 
     private static void startWorkaroundAndroid11() {

diff --git a/server/src/main/java/com/genymobile/scrcpy/wrappers/AudioAttributesWrapper.java b/server/src/main/java/com/genymobile/scrcpy/wrappers/AudioAttributesWrapper.java
@@ -0,0 +1,135 @@
+package com.genymobile.scrcpy.wrappers;
+
+import com.genymobile.scrcpy.Ln;
+
+import android.media.AudioAttributes;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Set;
+
+public class AudioAttributesWrapper {
+    private static Method getCapturePresetMethod;
+    private static Method setCapturePresetMethod;
+    private static Method getTagsMethod;
+
+    private static Method getGetCapturePresetMethod() throws NoSuchMethodException {
+        if (getCapturePresetMethod == null) {
+            getCapturePresetMethod = AudioAttributes.class.getMethod("getCapturePreset");
+        }
+        return getCapturePresetMethod;
+    }
+
+    public static int getCapturePreset(AudioAttributes audioAttributes)
+            throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, NoSuchMethodException {
+        try {
+            return (int) getGetCapturePresetMethod().invoke(audioAttributes);
+        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException
+                | NoSuchMethodException e) {
+            Ln.e("Failed to invoke AudioAttributes.getCapturePreset()", e);
+            throw e;
+        }
+    }
+
+    private static Method getSetCapturePresetMethod() throws NoSuchMethodException {
+        if (setCapturePresetMethod == null) {
+            setCapturePresetMethod = AudioAttributes.class.getMethod("setCapturePreset", int.class);
+        }
+        return setCapturePresetMethod;
+    }
+
+    public static void setCapturePreset(AudioAttributes audioAttributes, int preset)
+            throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, NoSuchMethodException {
+        try {
+            getSetCapturePresetMethod().invoke(audioAttributes, preset);
+        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException
+                | NoSuchMethodException e) {
+            Ln.e("Failed to invoke AudioAttributes.setCapturePreset()", e);
+            throw e;
+        }
+    }
+
+    private static Method getGetTagsMethod() throws NoSuchMethodException {
+        if (getTagsMethod == null) {
+            getTagsMethod = AudioAttributes.class.getMethod("getTags");
+        }
+        return getTagsMethod;
+    }
+
+    @SuppressWarnings("unchecked")
+    public static Set<String> getTags(AudioAttributes audioAttributes)
+            throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, NoSuchMethodException {
+        try {
+            return (Set<String>) getGetTagsMethod().invoke(audioAttributes);
+        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException
+                | NoSuchMethodException e) {
+            Ln.e("Failed to invoke AudioAttributes.getTags()", e);
+            throw e;
+        }
+    }
+
+    public static class Builder {
+        private static Method setInternalCapturePresetMethod;
+        private static Method setPrivacySensitiveMethod;
+        private static Method addTagMethod;
+
+        private static Method getSetInternalCapturePresetMethod() throws NoSuchMethodException {
+            if (setInternalCapturePresetMethod == null) {
+                setInternalCapturePresetMethod = AudioAttributes.Builder.class.getMethod("setInternalCapturePreset",
+                        int.class);
+            }
+            return setInternalCapturePresetMethod;
+        }
+
+        public static void setInternalCapturePreset(AudioAttributes.Builder builder, int preset)
+                throws IllegalAccessException, IllegalArgumentException, InvocationTargetException,
+                NoSuchMethodException {
+            try {
+                getSetInternalCapturePresetMethod().invoke(builder, preset);
+            } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException
+                    | NoSuchMethodException e) {
+                Ln.e("Failed to invoke AudioAttributes.Builder.setInternalCapturePreset()", e);
+                throw e;
+            }
+        }
+
+        private static Method getSetPrivacySensitiveMethod() throws NoSuchMethodException {
+            if (setPrivacySensitiveMethod == null) {
+                setPrivacySensitiveMethod = AudioAttributes.Builder.class.getMethod("setPrivacySensitive",
+                        boolean.class);
+            }
+            return setPrivacySensitiveMethod;
+        }
+
+        public static void setPrivacySensitive(AudioAttributes.Builder builder, boolean privacySensitive)
+                throws IllegalAccessException, IllegalArgumentException, InvocationTargetException,
+                NoSuchMethodException {
+            try {
+                getSetPrivacySensitiveMethod().invoke(builder, privacySensitive);
+            } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException
+                    | NoSuchMethodException e) {
+                Ln.e("Failed to invoke AudioAttributes.Builder.setPrivacySensitive()", e);
+                throw e;
+            }
+        }
+
+        private static Method getAddTagMethod() throws NoSuchMethodException {
+            if (addTagMethod == null) {
+                addTagMethod = AudioAttributes.Builder.class.getMethod("addTag", String.class);
+            }
+            return addTagMethod;
+        }
+
+        public static void addTag(AudioAttributes.Builder builder, String tag)
+                throws IllegalAccessException, IllegalArgumentException, InvocationTargetException,
+                NoSuchMethodException {
+            try {
+                getAddTagMethod().invoke(builder, tag);
+            } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException
+                    | NoSuchMethodException e) {
+                Ln.e("Failed to invoke AudioAttributes.Builder.addTag()", e);
+                throw e;
+            }
+        }
+    }
+}
diff --git a/server/src/main/java/com/genymobile/scrcpy/wrappers/AudioFormatWrapper.java b/server/src/main/java/com/genymobile/scrcpy/wrappers/AudioFormatWrapper.java
@@ -0,0 +1,78 @@
+package com.genymobile.scrcpy.wrappers;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import com.genymobile.scrcpy.Ln;
+
+import android.media.AudioFormat;
+
+public class AudioFormatWrapper {
+    public final static int AUDIO_FORMAT_HAS_PROPERTY_NONE = 0x0;
+    public final static int AUDIO_FORMAT_HAS_PROPERTY_ENCODING = 0x1 << 0;
+    public final static int AUDIO_FORMAT_HAS_PROPERTY_SAMPLE_RATE = 0x1 << 1;
+    public final static int AUDIO_FORMAT_HAS_PROPERTY_CHANNEL_MASK = 0x1 << 2;
+    public final static int AUDIO_FORMAT_HAS_PROPERTY_CHANNEL_INDEX_MASK = 0x1 << 3;
+
+    private static Method getPropertySetMaskMethod;
+    private static Method channelCountFromInChannelMaskMethod;
+    private static Method getBytesPerSampleMethod;
+
+    private static Method getGetPropertySetMaskMethod() throws NoSuchMethodException {
+        if (getPropertySetMaskMethod == null) {
+            getPropertySetMaskMethod = AudioFormat.class.getMethod("getPropertySetMask");
+        }
+        return getPropertySetMaskMethod;
+    }
+
+    public static int getPropertySetMask(AudioFormat audioFormat)
+            throws IllegalAccessException, IllegalArgumentException, InvocationTargetException,
+            NoSuchMethodException {
+        try {
+            return (int) getGetPropertySetMaskMethod().invoke(audioFormat);
+        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException
+                | NoSuchMethodException e) {
+            Ln.e("Failed to invoke AudioFormat.getPropertySetMask()", e);
+            throw e;
+        }
+    }
+
+    private static Method getChannelCountFromInChannelMaskMethod() throws NoSuchMethodException {
+        if (channelCountFromInChannelMaskMethod == null) {
+            channelCountFromInChannelMaskMethod = AudioFormat.class.getMethod("channelCountFromInChannelMask",
+                    int.class);
+        }
+        return channelCountFromInChannelMaskMethod;
+    }
+
+    public static int channelCountFromInChannelMask(int channelMask)
+            throws IllegalAccessException, IllegalArgumentException, InvocationTargetException,
+            NoSuchMethodException {
+        try {
+            return (int) getChannelCountFromInChannelMaskMethod().invoke(null, channelMask);
+        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException
+                | NoSuchMethodException e) {
+            Ln.e("Failed to invoke AudioFormat.channelCountFromInChannelMask()", e);
+            throw e;
+        }
+    }
+
+    private static Method getGetBytesPerSampleMethod() throws NoSuchMethodException {
+        if (getBytesPerSampleMethod == null) {
+            getBytesPerSampleMethod = AudioFormat.class.getMethod("getBytesPerSample", int.class);
+        }
+        return getBytesPerSampleMethod;
+    }
+
+    public static int getBytesPerSample(AudioFormat format, int encoding)
+            throws IllegalAccessException, IllegalArgumentException, InvocationTargetException,
+            NoSuchMethodException {
+        try {
+            return (int) getGetBytesPerSampleMethod().invoke(format, encoding);
+        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException
+                | NoSuchMethodException e) {
+            Ln.e("Failed to invoke AudioFormat.getBytesPerSample()", e);
+            throw e;
+        }
+    }
+}