AudioRecord: add HW hotword capture flag (bdad1afa) · Commits · e / os / android_frameworks_base

core/jni/android_media_AudioRecord.cpp

+12 −3

Original line number	Diff line number	Diff line
		@@ -45,6 +45,7 @@ struct audio_record_fields_t {
		};
		struct audio_attributes_fields_t {
		jfieldID fieldRecSource; // AudioAttributes.mSource
		jfieldID fieldFlags; // AudioAttributes.mFlags
		jfieldID fieldFormattedTags;// AudioAttributes.mFormattedTags
		};
		static audio_attributes_fields_t javaAudioAttrFields;
		@@ -212,9 +213,13 @@ android_media_AudioRecord_setup(JNIEnv *env, jobject thiz, jobject weak_this,
		strncpy(paa->tags, tags, AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1);
		env->ReleaseStringUTFChars(jtags, tags);
		paa->source = (audio_source_t) env->GetIntField(jaa, javaAudioAttrFields.fieldRecSource);
		paa->flags = (audio_flags_mask_t)env->GetIntField(jaa, javaAudioAttrFields.fieldFlags);
		ALOGV("AudioRecord_setup for source=%d tags=%s flags=%08x", paa->source, paa->tags, paa->flags);

		ALOGV("AudioRecord_setup for source=%d tags=%s", paa->source, paa->tags);

		audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE;
		if (paa->flags & AUDIO_FLAG_HW_HOTWORD) {
		flags = AUDIO_INPUT_FLAG_HW_HOTWORD;
		}
		// create the callback information:
		// this data will be passed with every AudioRecord callback
		audiorecord_callback_cookie *lpCallbackData = new audiorecord_callback_cookie;
		@@ -232,7 +237,9 @@ android_media_AudioRecord_setup(JNIEnv *env, jobject thiz, jobject weak_this,
		lpCallbackData,// void* user
		0, // notificationFrames,
		true, // threadCanCallJava
		sessionId);
		sessionId,
		AudioRecord::TRANSFER_DEFAULT,
		flags);

		if (status != NO_ERROR) {
		ALOGE("Error creating AudioRecord instance: initialization check failed with status %d.",
		@@ -638,10 +645,12 @@ int register_android_media_AudioRecord(JNIEnv *env)
		}
		jclass audioAttributesClassRef = (jclass)env->NewGlobalRef(audioAttrClass);
		javaAudioAttrFields.fieldRecSource = env->GetFieldID(audioAttributesClassRef, "mSource", "I");
		javaAudioAttrFields.fieldFlags = env->GetFieldID(audioAttributesClassRef, "mFlags", "I");
		javaAudioAttrFields.fieldFormattedTags =
		env->GetFieldID(audioAttributesClassRef, "mFormattedTags", "Ljava/lang/String;");
		env->DeleteGlobalRef(audioAttributesClassRef);
		if (javaAudioAttrFields.fieldRecSource == NULL
		\|\| javaAudioAttrFields.fieldFlags == NULL
		\|\| javaAudioAttrFields.fieldFormattedTags == NULL) {
		ALOGE("Can't initialize AudioAttributes fields");
		return -1;

media/java/android/media/AudioAttributes.java

+10 −1

Original line number	Diff line number	Diff line
		@@ -194,8 +194,17 @@ public final class AudioAttributes implements Parcelable {
		*/
		public final static int FLAG_HW_AV_SYNC = 0x1 << 4;

		/**
		* @hide
		* Flag requesting capture from the source used for hardware hotword detection.
		* To be used with capture preset MediaRecorder.AudioSource.HOTWORD or
		* MediaRecorder.AudioSource.VOICE_RECOGNITION.
		*/
		@SystemApi
		public final static int FLAG_HW_HOTWORD = 0x1 << 5;

		private final static int FLAG_ALL = FLAG_AUDIBILITY_ENFORCED \| FLAG_SECURE \| FLAG_SCO \|
		FLAG_BEACON \| FLAG_HW_AV_SYNC;
		FLAG_BEACON \| FLAG_HW_AV_SYNC \| FLAG_HW_HOTWORD;
		private final static int FLAG_ALL_PUBLIC = FLAG_AUDIBILITY_ENFORCED \| FLAG_HW_AV_SYNC;

		private int mUsage = USAGE_UNKNOWN;