am 880dfe4f: Merge "Fix issue 3007862" into gingerbread (692dfafe) · Commits · e / os / android_frameworks_base

services/audioflinger/AudioFlinger.cpp

+49 −40

Original line number	Diff line number	Diff line
		@@ -4653,9 +4653,6 @@ sp<IEffect> AudioFlinger::createEffect(pid_t pid,
		goto Exit;
		}

		{
		Mutex::Autolock _l(mLock);

		// check audio settings permission for global effects
		if (sessionId == AudioSystem::SESSION_OUTPUT_MIX && !settingsAllowed()) {
		lStatus = PERMISSION_DENIED;
		@@ -4677,6 +4674,24 @@ sp<IEffect> AudioFlinger::createEffect(pid_t pid,
		goto Exit;
		}

		if (output == 0) {
		if (sessionId == AudioSystem::SESSION_OUTPUT_STAGE) {
		// output must be specified by AudioPolicyManager when using session
		// AudioSystem::SESSION_OUTPUT_STAGE
		lStatus = BAD_VALUE;
		goto Exit;
		} else if (sessionId == AudioSystem::SESSION_OUTPUT_MIX) {
		// if the output returned by getOutputForEffect() is removed before we lock the
		// mutex below, the call to checkPlaybackThread_l(output) below will detect it
		// and we will exit safely
		output = AudioSystem::getOutputForEffect(&desc);
		}
		}

		{
		Mutex::Autolock _l(mLock);


		if (!EffectIsNullUuid(&pDesc->uuid)) {
		// if uuid is specified, request effect descriptor
		lStatus = EffectGetDescriptor(&pDesc->uuid, &desc);
		@@ -4744,17 +4759,9 @@ sp<IEffect> AudioFlinger::createEffect(pid_t pid,

		// If output is not specified try to find a matching audio session ID in one of the
		// output threads.
		// TODO: allow attachment of effect to inputs
		// If output is 0 here, sessionId is neither SESSION_OUTPUT_STAGE nor SESSION_OUTPUT_MIX
		// because of code checking output when entering the function.
		if (output == 0) {
		if (sessionId == AudioSystem::SESSION_OUTPUT_STAGE) {
		// output must be specified by AudioPolicyManager when using session
		// AudioSystem::SESSION_OUTPUT_STAGE
		lStatus = BAD_VALUE;
		goto Exit;
		} else if (sessionId == AudioSystem::SESSION_OUTPUT_MIX) {
		output = AudioSystem::getOutputForEffect(&desc);
		LOGV("createEffect() got output %d for effect %s", output, desc.name);
		} else {
		// look for the thread where the specified audio session is present
		for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
		if (mPlaybackThreads.valueAt(i)->hasAudioSession(sessionId) != 0) {
		@@ -4769,7 +4776,7 @@ sp<IEffect> AudioFlinger::createEffect(pid_t pid,
		output = mPlaybackThreads.keyAt(0);
		}
		}
		}
		LOGV("createEffect() got output %d for effect %s", output, desc.name);
		PlaybackThread *thread = checkPlaybackThread_l(output);
		if (thread == NULL) {
		LOGE("createEffect() unknown output thread");
		@@ -4777,6 +4784,8 @@ sp<IEffect> AudioFlinger::createEffect(pid_t pid,
		goto Exit;
		}

		// TODO: allow attachment of effect to inputs

		wclient = mClients.valueFor(pid);

		if (wclient != NULL) {