first commit

1-Demo/IDF-DEMO/NoDisplay/mp3_player/main/CMakeLists.txt

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+idf_component_register(SRCS "mp3_player.c"
+                    INCLUDE_DIRS ".")

1-Demo/IDF-DEMO/NoDisplay/mp3_player/main/idf_component.yml

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+## IDF Component Manager Manifest File
+dependencies:
+  ## Required IDF version
+  idf:
+    version: '>=4.1.0'
+  # # Put list of dependencies here
+  # # For components maintained by Espressif:
+  # component: "~1.0.0"
+  # # For 3rd party components:
+  # username/component: ">=1.0.0,<2.0.0"
+  # username2/component2:
+  #   version: "~1.0.0"
+  #   # For transient dependencies `public` flag can be set.
+  #   # `public` flag doesn't have an effect dependencies of the `main` component.
+  #   # All dependencies of `main` are public by default.
+  #   public: true
+  espressif/button: ^4.1.3

1-Demo/IDF-DEMO/NoDisplay/mp3_player/main/mp3_player.c

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+#include <stdio.h>
+#include "sdkconfig.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/semphr.h"
+#include "driver/gpio.h"
+#include "driver/ledc.h"
+#include "esp_err.h"
+#include "esp_log.h"
+#include "esp_check.h"
+#include "esp_spiffs.h"
+#include "esp_vfs_fat.h"
+#include "bsp/esp-bsp.h"
+#include "bsp/display.h"
+#include "bsp_board_extra.h"
+#include "audio_player.h"
+
+#include "file_iterator.h"
+#include "iot_button.h"
+#include "button_gpio.h"
+
+#define TAG             "mp3_player"
+#define MUSIC_DIR       "/sdcard/music"
+#define BUTTON_IO_NUM   35
+#define BUTTON_ACTIVE_LEVEL   0
+
+file_iterator_instance_t *_file_iterator;
+static audio_player_cb_t audio_idle_callback = NULL;
+static QueueHandle_t event_queue;
+static SemaphoreHandle_t semph_event;
+int music_cnt = 0;
+int cnt = 0;
+
+static void audio_player_callback(audio_player_cb_ctx_t *ctx)
+{
+    ESP_LOGI(TAG,"audio_player_callback %d",ctx->audio_event);
+    if(ctx->audio_event == AUDIO_PLAYER_CALLBACK_EVENT_SHUTDOWN || ctx->audio_event == AUDIO_PLAYER_CALLBACK_EVENT_IDLE)
+        xSemaphoreGive(semph_event);
+        // xQueueSend(event_queue, &(ctx->audio_event), 0);
+}
+
+static void mp3_player_task(void *arg)
+{
+    audio_player_callback_event_t event;
+    while(true)
+    {
+        bsp_extra_player_play_index(_file_iterator,cnt);
+        cnt++;
+        if(cnt > music_cnt)
+            cnt = 0;
+        xSemaphoreTake(semph_event, portMAX_DELAY);
+    }
+
+    bsp_extra_player_del();
+    vTaskDelete(NULL);
+}
+
+void app_main(void)
+{
+    esp_err_t ret = bsp_sdcard_mount();
+    if(ret == ESP_OK)
+        ESP_LOGI(TAG, "SD card mount successfully");
+
+    ESP_ERROR_CHECK(bsp_extra_codec_init());
+    bsp_extra_codec_volume_set(40,NULL);
+    bsp_extra_player_init();
+
+    _file_iterator = file_iterator_new(MUSIC_DIR);
+    music_cnt = file_iterator_get_count(_file_iterator);
+
+    event_queue = xQueueCreate(1, sizeof(audio_player_callback_event_t));
+    semph_event = xSemaphoreCreateBinary();
+
+    bsp_extra_player_register_callback(audio_player_callback,NULL);
+
+    xTaskCreatePinnedToCore(mp3_player_task,"mp3_player",4096,NULL,4,NULL,1);
+
+}