Merge "audio: adjust latency for pcm offload stream" (7c595391) · Commits · e / os / android_hardware_qcom_audio

hal/audio_extn/utils.c

+11 −2

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2014-2017, The Linux Foundation. All rights reserved.
		* Copyright (c) 2014-2018, The Linux Foundation. All rights reserved.
		* Not a Contribution.
		*
		* Copyright (C) 2014 The Android Open Source Project
		@@ -102,6 +102,9 @@

		/* ToDo: Check and update a proper value in msec */
		#define COMPRESS_OFFLOAD_PLAYBACK_LATENCY 50
		#define PCM_OFFLOAD_PLAYBACK_DSP_PATHDELAY 62
		#define PCM_OFFLOAD_PLAYBACK_LATENCY \
		(PCM_OFFLOAD_BUFFER_DURATION + PCM_OFFLOAD_PLAYBACK_DSP_PATHDELAY)

		#ifndef MAX_CHANNELS_SUPPORTED
		#define MAX_CHANNELS_SUPPORTED 8
		@@ -1806,6 +1809,12 @@ int audio_extn_utils_compress_get_dsp_latency(struct stream_out *out)
		struct snd_compr_metadata metadata;
		int delay_ms = COMPRESS_OFFLOAD_PLAYBACK_LATENCY;

		/* override the latency for pcm offload use case */
		if ((out->flags & AUDIO_OUTPUT_FLAG_DIRECT) &&
		!(out->flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)) {
		delay_ms = PCM_OFFLOAD_PLAYBACK_LATENCY;
		}

		if (property_get_bool("vendor.audio.playback.dsp.pathdelay", false)) {
		ALOGD("%s:: Quering DSP delay %d",__func__, __LINE__);
		if (!(is_offload_usecase(out->usecase))) {