policy-hal: Restrict track offload for fractional sample rate (b9e9dfd0) · Commits · e / devices / Fairphone 4 / android_hardware_qcom_audio

policy_hal/AudioPolicyManager.cpp

+4 −4

Original line number	Diff line number	Diff line
		@@ -51,7 +51,7 @@
		// type alone is not enough: the address must match too
		#define APM_AUDIO_DEVICE_MATCH_ADDRESS_ALL (AUDIO_DEVICE_IN_REMOTE_SUBMIX \| \
		AUDIO_DEVICE_OUT_REMOTE_SUBMIX)

		#define SAMPLE_RATE_8000 8000
		#include <inttypes.h>
		#include <math.h>

		@@ -1331,7 +1331,7 @@ bool AudioPolicyManagerCustom::isDirectOutput(audio_io_handle_t output) {
		return false;
		}

		bool static tryForDirectPCM(int bitWidth, audio_output_flags_t *flags)
		bool static tryForDirectPCM(int bitWidth, audio_output_flags_t *flags, uint32_t samplingRate)
		{
		bool playerDirectPCM = false; // Output request for Track created by mediaplayer
		bool trackDirectPCM = false; // Output request for track created by other apps
		@@ -1358,7 +1358,7 @@ bool static tryForDirectPCM(int bitWidth, audio_output_flags_t *flags)
		// Reset flag to NONE so that we can still reuse direct pcm criteria check
		// in getOutputforDevice
		*flags = AUDIO_OUTPUT_FLAG_NONE;
		} else if ( *flags == AUDIO_OUTPUT_FLAG_NONE) {
		} else if ((*flags == AUDIO_OUTPUT_FLAG_NONE) && (samplingRate % SAMPLE_RATE_8000 == 0)) {
		trackDirectPCM = property_get_bool("audio.offload.track.enable", true);
		}

		@@ -1385,7 +1385,7 @@ status_t AudioPolicyManagerCustom::getOutputForAttr(const audio_attributes_t *at
		uint32_t bitWidth = (audio_bytes_per_sample(format) * 8);


		if (tryForDirectPCM(bitWidth, &flags) &&
		if (tryForDirectPCM(bitWidth, &flags, samplingRate) &&
		(offloadInfo == NULL)) {

		tOffloadInfo.sample_rate = samplingRate;