DivestOS/Patches/LineageOS-14.1/android_system_bt/0001-Improve_Quality.patch

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From 93e456e4a21bdb0a03050001b02f9e2dba653306 Mon Sep 17 00:00:00 2001
From: Tad <tad@spotco.us>
Date: Thu, 23 Aug 2018 22:23:28 -0400
Subject: [PATCH] Improve Bluetooth audio quality, credit @ValdikSS
Change-Id: Ia6282d5e76ea7df0d8e0c56559f71c333d6b04eb
See: https://forum.xda-developers.com/android/software-hacking/improve-bluetooth-audio-quality-t3832615
---
btif/co/bta_av_co.c | 8 ++++----
btif/src/btif_media_task.c | 2 +-
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/btif/co/bta_av_co.c b/btif/co/bta_av_co.c
index 39a8ebfa..1d86469d 100644
--- a/btif/co/bta_av_co.c
+++ b/btif/co/bta_av_co.c
@@ -130,7 +130,7 @@ const tA2D_SBC_CIE bta_av_co_sbc_sink_caps =
const tA2D_SBC_CIE btif_av_sbc_default_config =
{
BTIF_AV_SBC_DEFAULT_SAMP_FREQ, /* samp_freq */
- A2D_SBC_IE_CH_MD_JOINT, /* ch_mode */
+ A2D_SBC_IE_CH_MD_DUAL, /* ch_mode */
A2D_SBC_IE_BLOCKS_16, /* block_len */
A2D_SBC_IE_SUBBAND_8, /* num_subbands */
A2D_SBC_IE_ALLOC_MD_L, /* alloc_mthd */
@@ -566,12 +566,12 @@ void bta_av_build_src_cfg (UINT8 *p_pref_cfg, UINT8 *p_src_cap)
else if (src_cap.samp_freq & A2D_SBC_IE_SAMP_FREQ_44)
pref_cap.samp_freq = A2D_SBC_IE_SAMP_FREQ_44;
- if (src_cap.ch_mode & A2D_SBC_IE_CH_MD_JOINT)
+ if (src_cap.ch_mode & A2D_SBC_IE_CH_MD_DUAL)
+ pref_cap.ch_mode = A2D_SBC_IE_CH_MD_DUAL;
+ else if (src_cap.ch_mode & A2D_SBC_IE_CH_MD_JOINT)
pref_cap.ch_mode = A2D_SBC_IE_CH_MD_JOINT;
else if (src_cap.ch_mode & A2D_SBC_IE_CH_MD_STEREO)
pref_cap.ch_mode = A2D_SBC_IE_CH_MD_STEREO;
- else if (src_cap.ch_mode & A2D_SBC_IE_CH_MD_DUAL)
- pref_cap.ch_mode = A2D_SBC_IE_CH_MD_DUAL;
else if (src_cap.ch_mode & A2D_SBC_IE_CH_MD_MONO)
pref_cap.ch_mode = A2D_SBC_IE_CH_MD_MONO;
diff --git a/btif/src/btif_media_task.c b/btif/src/btif_media_task.c
index 977d2668..a8ad735c 100644
--- a/btif/src/btif_media_task.c
+++ b/btif/src/btif_media_task.c
@@ -214,7 +214,7 @@ enum {
#define BTIF_A2DP_NON_EDR_MAX_RATE 237
#endif
#else
-#define BTIF_A2DP_DEFAULT_BITRATE 328
+#define BTIF_A2DP_DEFAULT_BITRATE 512
#ifndef BTIF_A2DP_NON_EDR_MAX_RATE
#define BTIF_A2DP_NON_EDR_MAX_RATE 229
--
2.18.0