- remove bug in i2s driver resulting in overwriting DMA descriptor while initialization leading to wrong initial sync

- change some function return values from int8_t to int32_t
- improve syncing
  o try to mimic original algorithm used by badaix
- latency_buffer_full() call in player sporadically returns negative value
  which led to a unnecessary vTaskDelay --> resolved
- use esp_timer_get_time() instead of gettimeofday() for timestamping
- enable IRAM optimazations for WIFI
- decrease WIFI RX buffers

Signed-off-by: Karl Osterseher <karli_o@gmx.at>

sdkconfig

@@ -529,8 +529,8 @@ CONFIG_ESP_TIMER_IMPL_TG0_LAC=y
 #
 # Wi-Fi
 #
-CONFIG_ESP32_WIFI_STATIC_RX_BUFFER_NUM=16
-CONFIG_ESP32_WIFI_DYNAMIC_RX_BUFFER_NUM=32
+CONFIG_ESP32_WIFI_STATIC_RX_BUFFER_NUM=8
+CONFIG_ESP32_WIFI_DYNAMIC_RX_BUFFER_NUM=16
 # CONFIG_ESP32_WIFI_STATIC_TX_BUFFER is not set
 CONFIG_ESP32_WIFI_DYNAMIC_TX_BUFFER=y
 CONFIG_ESP32_WIFI_TX_BUFFER_TYPE=1
@@ -551,7 +551,7 @@ CONFIG_ESP32_WIFI_MGMT_SBUF_NUM=32
 CONFIG_WIFI_LOG_DEFAULT_LEVEL_INFO=y
 # CONFIG_WIFI_LOG_DEFAULT_LEVEL_DEBUG is not set
 # CONFIG_WIFI_LOG_DEFAULT_LEVEL_VERBOSE is not set
-# CONFIG_ESP32_WIFI_IRAM_OPT is not set
+CONFIG_ESP32_WIFI_IRAM_OPT=y
 CONFIG_ESP32_WIFI_RX_IRAM_OPT=y
 CONFIG_ESP32_WIFI_ENABLE_WPA3_SAE=y
 # CONFIG_ESP_WIFI_SLP_IRAM_OPT is not set
@@ -711,8 +711,8 @@ CONFIG_LOG_DEFAULT_LEVEL_INFO=y
 # CONFIG_LOG_DEFAULT_LEVEL_VERBOSE is not set
 CONFIG_LOG_DEFAULT_LEVEL=3
 CONFIG_LOG_COLORS=y
-# CONFIG_LOG_TIMESTAMP_SOURCE_RTOS is not set
-CONFIG_LOG_TIMESTAMP_SOURCE_SYSTEM=y
+CONFIG_LOG_TIMESTAMP_SOURCE_RTOS=y
+# CONFIG_LOG_TIMESTAMP_SOURCE_SYSTEM is not set
 # end of Log output
 
 #