Merge "A2DP: Fix offload start VSC parameters" (0750cf8b) · Commits · e / os / android_packages_modules_Bluetooth

system/audio_hal_interface/a2dp_encoding.cc

+39 −10

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		#include "a2dp_encoding.h"
		#include "client_interface.h"

		#include "a2dp_aac_constants.h"
		#include "a2dp_sbc_constants.h"
		#include "a2dp_vendor_ldac_constants.h"
		#include "bta/av/bta_av_int.h"
		@@ -304,7 +305,7 @@ bool a2dp_get_selected_hal_codec_config(CodecConfiguration* codec_config) {
		<< ": Unknown SBC sample_rate=" << current_codec.sample_rate;
		return false;
		}
		uint8_t channel_mode = a2dp_offload.codec_info[0] & A2DP_SBC_IE_CH_MD_MSK;
		uint8_t channel_mode = a2dp_offload.codec_info[3] & A2DP_SBC_IE_CH_MD_MSK;
		switch (channel_mode) {
		case A2DP_SBC_IE_CH_MD_JOINT:
		sbc_config.channelMode = SbcChannelMode::JOINT_STEREO;
		@@ -325,7 +326,7 @@ bool a2dp_get_selected_hal_codec_config(CodecConfiguration* codec_config) {
		return false;
		}
		uint8_t block_length =
		a2dp_offload.codec_info[1] & A2DP_SBC_IE_BLOCKS_MSK;
		a2dp_offload.codec_info[0] & A2DP_SBC_IE_BLOCKS_MSK;
		switch (block_length) {
		case A2DP_SBC_IE_BLOCKS_4:
		sbc_config.blockLength = SbcBlockLength::BLOCKS_4;
		@@ -344,7 +345,7 @@ bool a2dp_get_selected_hal_codec_config(CodecConfiguration* codec_config) {
		<< ": Unknown SBC block_length=" << block_length;
		return false;
		}
		uint8_t sub_bands = a2dp_offload.codec_info[1] & A2DP_SBC_IE_SUBBAND_MSK;
		uint8_t sub_bands = a2dp_offload.codec_info[0] & A2DP_SBC_IE_SUBBAND_MSK;
		switch (sub_bands) {
		case A2DP_SBC_IE_SUBBAND_4:
		sbc_config.numSubbands = SbcNumSubbands::SUBBAND_4;
		@@ -357,7 +358,7 @@ bool a2dp_get_selected_hal_codec_config(CodecConfiguration* codec_config) {
		return false;
		}
		uint8_t alloc_method =
		a2dp_offload.codec_info[1] & A2DP_SBC_IE_ALLOC_MD_MSK;
		a2dp_offload.codec_info[0] & A2DP_SBC_IE_ALLOC_MD_MSK;
		switch (alloc_method) {
		case A2DP_SBC_IE_ALLOC_MD_S:
		sbc_config.allocMethod = SbcAllocMethod::ALLOC_MD_S;
		@@ -370,8 +371,8 @@ bool a2dp_get_selected_hal_codec_config(CodecConfiguration* codec_config) {
		<< ": Unknown SBC alloc_method=" << alloc_method;
		return false;
		}
		sbc_config.minBitpool = a2dp_offload.codec_info[2];
		sbc_config.maxBitpool = a2dp_offload.codec_info[3];
		sbc_config.minBitpool = a2dp_offload.codec_info[1];
		sbc_config.maxBitpool = a2dp_offload.codec_info[2];
		sbc_config.bitsPerSample =
		a2dp_codec_to_hal_bits_per_sample(current_codec);
		if (sbc_config.bitsPerSample == BitsPerSample::BITS_UNKNOWN) {
		@@ -388,8 +389,25 @@ bool a2dp_get_selected_hal_codec_config(CodecConfiguration* codec_config) {
		codec_config->codecType = CodecType::AAC;
		codec_config->config.aacConfig({});
		auto aac_config = codec_config->config.aacConfig();
		// TODO(cheneyni): add more supported types.
		uint8_t object_type = a2dp_offload.codec_info[0];
		switch (object_type) {
		case A2DP_AAC_OBJECT_TYPE_MPEG2_LC:
		aac_config.objectType = AacObjectType::MPEG2_LC;
		break;
		case A2DP_AAC_OBJECT_TYPE_MPEG4_LC:
		aac_config.objectType = AacObjectType::MPEG4_LC;
		break;
		case A2DP_AAC_OBJECT_TYPE_MPEG4_LTP:
		aac_config.objectType = AacObjectType::MPEG4_LTP;
		break;
		case A2DP_AAC_OBJECT_TYPE_MPEG4_SCALABLE:
		aac_config.objectType = AacObjectType::MPEG4_SCALABLE;
		break;
		default:
		LOG(ERROR) << __func__
		<< ": Unknown AAC object_type=" << +object_type;
		return false;
		}
		aac_config.sampleRate = a2dp_codec_to_hal_sample_rate(current_codec);
		if (aac_config.sampleRate == SampleRate::RATE_UNKNOWN) {
		LOG(ERROR) << __func__
		@@ -402,8 +420,19 @@ bool a2dp_get_selected_hal_codec_config(CodecConfiguration* codec_config) {
		<< current_codec.channel_mode;
		return false;
		}
		// TODO(cheneyni): refine to support VBR.
		uint8_t vbr_enabled =
		a2dp_offload.codec_info[1] & A2DP_AAC_VARIABLE_BIT_RATE_MASK;
		switch (vbr_enabled) {
		case A2DP_AAC_VARIABLE_BIT_RATE_ENABLED:
		aac_config.variableBitRateEnabled = AacVariableBitRate::ENABLED;
		break;
		case A2DP_AAC_VARIABLE_BIT_RATE_DISABLED:
		aac_config.variableBitRateEnabled = AacVariableBitRate::DISABLED;
		break;
		default:
		LOG(ERROR) << __func__ << ": Unknown AAC VBR=" << +vbr_enabled;
		return false;
		}
		aac_config.bitsPerSample =
		a2dp_codec_to_hal_bits_per_sample(current_codec);
		if (aac_config.bitsPerSample == BitsPerSample::BITS_UNKNOWN) {

system/stack/a2dp/a2dp_codec_config.cc

+4 −4

Original line number	Diff line number	Diff line
		@@ -188,11 +188,11 @@ bool A2dpCodecConfig::getCodecSpecificConfig(tBT_A2DP_OFFLOAD* p_a2dp_offload) {
		switch (codec_type) {
		case A2DP_MEDIA_CT_SBC:
		p_a2dp_offload->codec_info[0] =
		codec_config[3]; // samplefreq \| channelmode
		p_a2dp_offload->codec_info[1] =
		codec_config[4]; // blk_len \| subbands \| Alloc Method
		p_a2dp_offload->codec_info[2] = codec_config[5]; // Min bit pool
		p_a2dp_offload->codec_info[3] = codec_config[6]; // Max bit pool
		p_a2dp_offload->codec_info[1] = codec_config[5]; // Min bit pool
		p_a2dp_offload->codec_info[2] = codec_config[6]; // Max bit pool
		p_a2dp_offload->codec_info[3] =
		codec_config[3]; // Sample freq \| channel mode
		break;
		case A2DP_MEDIA_CT_AAC:
		p_a2dp_offload->codec_info[0] = codec_config[3]; // object type