From 29bcccd5c94b91ada674b5dc8f5a60813ceff851 Mon Sep 17 00:00:00 2001
From: zhangzhaopeng <powell@hichs.com.cn>
Date: Tue, 13 May 2025 11:12:24 +0800
Subject: [PATCH] =?UTF-8?q?=E8=B0=83=E6=95=B4alsa=E5=8F=82=E6=95=B0?=
 =?UTF-8?q?=E5=87=8F=E5=B0=8F=E9=9F=B3=E9=A2=91=E5=BB=B6=E6=97=B6?=
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---
 .../middleware/sun8iw21/media/audio/alsa_interface.c         | 5 +++--
 .../busybox-init-base-files/etc/asound.conf                  | 4 ++--
 .../busybox-init-base-files/etc/asound.conf                  | 4 ++--
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/external/eyesee-mpp/middleware/sun8iw21/media/audio/alsa_interface.c b/external/eyesee-mpp/middleware/sun8iw21/media/audio/alsa_interface.c
index 9fc69179a..6423854f4 100755
--- a/external/eyesee-mpp/middleware/sun8iw21/media/audio/alsa_interface.c
+++ b/external/eyesee-mpp/middleware/sun8iw21/media/audio/alsa_interface.c
@@ -22,8 +22,8 @@
 static char aioDebugfsPath[256] = {0};
 static unsigned int updateCnt = 0;
 
-#define PERIOD_SIZE (1024)
-#define PERIOD_COUNT (8)
+#define PERIOD_SIZE (256)
+#define PERIOD_COUNT (4)
 #define UPDATE_AIO_DEBUGFS_INFO(update_flag, item_flag, item, type, buf, path)  \
     do {                                                                        \
         if (update_flag & item_flag) {                                          \
@@ -388,6 +388,7 @@ int alsaSetPcmParams(PCM_CONFIG_S *pcmCfg)
 
     snd_pcm_uframes_t periodSize = PERIOD_SIZE;
     snd_pcm_uframes_t prePeriodSize = periodSize;
+    // alogd("size:%d count:%d\n", PERIOD_SIZE, PERIOD_COUNT);
     err = snd_pcm_hw_params_set_period_size_near(pcmCfg->handle, params, &periodSize, &dir);
     if (err < 0) {
         aloge("set_period_size_near error!");
diff --git a/target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/etc/asound.conf b/target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/etc/asound.conf
index 57081c85b..a37099818 100755
--- a/target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/etc/asound.conf
+++ b/target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/etc/asound.conf
@@ -118,7 +118,7 @@ pcm.PlaybackRateDmix {
     }
     @args.PERIODSIZE {
         type integer
-        default 960 #1024
+        default 256 #1024
     }
     type plug
     slave.pcm {
@@ -135,7 +135,7 @@ pcm.PlaybackRateDmix {
                     rate        $SAMPLERATE
                     channels    $CHNNUM
                     period_size $PERIODSIZE
-                    periods 8
+                    periods 4
                 }
             }
             hooks.0 {
diff --git a/target/allwinner/v851s3-fastboot_sl100_front/busybox-init-base-files/etc/asound.conf b/target/allwinner/v851s3-fastboot_sl100_front/busybox-init-base-files/etc/asound.conf
index 57081c85b..a37099818 100755
--- a/target/allwinner/v851s3-fastboot_sl100_front/busybox-init-base-files/etc/asound.conf
+++ b/target/allwinner/v851s3-fastboot_sl100_front/busybox-init-base-files/etc/asound.conf
@@ -118,7 +118,7 @@ pcm.PlaybackRateDmix {
     }
     @args.PERIODSIZE {
         type integer
-        default 960 #1024
+        default 256 #1024
     }
     type plug
     slave.pcm {
@@ -135,7 +135,7 @@ pcm.PlaybackRateDmix {
                     rate        $SAMPLERATE
                     channels    $CHNNUM
                     period_size $PERIODSIZE
-                    periods 8
+                    periods 4
                 }
             }
             hooks.0 {