157 lines
4.7 KiB
C
157 lines
4.7 KiB
C
#include "app_config.h"
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#if CONFIG_MP3_DEC_ENABLE
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//需要添加
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#include "device/device.h"//u8
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#include "system/includes.h"
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#include "server/audio_server.h"
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/*********播放flash中的mp3资源****用于按键播放提示音和开机音乐**************************/
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/*=调用该函数即可完成flash中的资源播放 例如post_msg_play_flash_mp3("music_test.mp3",50)50是播放音量最大100=*/
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void post_msg_play_flash_mp3(char *file_name, u8 dec_volume);
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static OS_MUTEX mutex_mp3;
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static OS_SEM dec_ready_sem;
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#define SHUTDOWN_CMD (1001)
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struct flash_mp3_hdl {
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struct server *dec_server;
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char *file_name;
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char file_path[64];
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u8 dec_volume;
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int task_pid;
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FILE *file;
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u8 dec_open_flog;
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};
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static struct flash_mp3_hdl *mp3_info = {0};
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static void dec_server_event_handler(void *priv, int argc, int *argv)
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{
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int msg = 0;
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switch (argv[0]) {
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case AUDIO_SERVER_EVENT_ERR:
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printf("AUDIO_SERVER_EVENT_ERR\n");
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break;
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case AUDIO_SERVER_EVENT_END:
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printf("AUDIO_SERVER_EVENT_END\n");
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msg = SHUTDOWN_CMD;
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os_taskq_post(os_current_task(), 1, msg);
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break;
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case AUDIO_SERVER_EVENT_CURR_TIME:
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printf("play_time: %d\n", argv[1]);
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break;
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default:
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break;
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}
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}
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static void play_mp3_task(void *priv)
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{
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int msg[32] = {0};
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int err;
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printf("<<<<<<<<<<<<<<<<<<<path = %s", mp3_info->file_path);
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mp3_info->file = fopen(mp3_info->file_path, "r");
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if (!mp3_info->file) {
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puts("no this mp3!\n");
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}
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mp3_info->dec_server = server_open("audio_server", "dec");
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if (!mp3_info->dec_server) {
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puts("play_music open audio_server fail!\n");
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goto __err;
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}
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server_register_event_handler(mp3_info->dec_server, NULL, dec_server_event_handler);
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union audio_req req = {0};
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req.dec.cmd = AUDIO_DEC_OPEN;
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req.dec.volume = mp3_info->dec_volume;
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req.dec.output_buf = NULL;
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req.dec.output_buf_len = 12 * 1024;
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req.dec.channel = 0;
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req.dec.sample_rate = 0;
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req.dec.priority = 1;
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req.dec.vfs_ops = NULL;
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req.dec.file = mp3_info->file;
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req.dec.dec_type = "mp3";
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req.dec.sample_source = "dac";
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//打开解码器
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if (server_request(mp3_info->dec_server, AUDIO_REQ_DEC, &req) != 0) {
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puts("1open_audio_dec_err!!!");
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return ;
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}
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//开始解码
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req.dec.cmd = AUDIO_DEC_START;
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if (server_request(mp3_info->dec_server, AUDIO_REQ_DEC, &req) != 0) {
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puts("2open_audio_dec_err!!!");
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return ;
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}
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mp3_info->dec_open_flog = 1;
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os_sem_post(&dec_ready_sem);
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os_task_pend("taskq", msg, ARRAY_SIZE(msg));
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//关闭音频
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req.dec.cmd = AUDIO_DEC_STOP;
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//关闭解码器
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printf("stop dec.\n");
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server_request(mp3_info->dec_server, AUDIO_REQ_DEC, &req);
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server_close(mp3_info->dec_server);
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if (mp3_info->file) {
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fclose(mp3_info->file);
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}
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printf(">>>>>dec_server stop");
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os_sem_post(&dec_ready_sem);
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mp3_info->dec_open_flog = 0;
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return ;
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__err:
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fclose(mp3_info->file);
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server_close(mp3_info->dec_server);
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return;
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}
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/*=调用该函数即可完成flash中的资源播放 例如post_msg_play_flash_mp3("music_test.mp3",50)50是播放音量最大100=*/
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void post_msg_play_flash_mp3(char *file_name, u8 dec_volume)
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{
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os_mutex_pend(&mutex_mp3, 0);//加互斥放防止异步操作
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int msg = 0;
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snprintf(mp3_info->file_path, 64, CONFIG_VOICE_PROMPT_FILE_PATH"%s", file_name);
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mp3_info->dec_volume = dec_volume;
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if (mp3_info->dec_open_flog == 0) { //音频解码器没有被打开过
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thread_fork("play_mp3_task", 10, 1024, 32, &mp3_info->task_pid, play_mp3_task, NULL);
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os_sem_pend(&dec_ready_sem, 0);//等待解码器打开成功
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} else {//如果之前的音频没有播放完
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msg = SHUTDOWN_CMD;
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os_taskq_post("play_mp3_task", 1, msg);
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os_sem_pend(&dec_ready_sem, 0);//等待解码器关闭
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thread_kill(&mp3_info->task_pid, KILL_WAIT);//确认上次线程是否关闭
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thread_fork("play_mp3_task", 10, 1024, 32, &mp3_info->task_pid, play_mp3_task, NULL);
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}
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os_time_dly(30);//限制最快播放的时间间隔 因此延时300ms 这里延时很小的时候会有异常没有解决 可能是开关线程频繁 底层开了解码器 还没关又打开次数多了就异常了
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os_mutex_post(&mutex_mp3);
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}
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static void flash_mp3_open(void)
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{
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os_sem_create(&dec_ready_sem, 0);
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os_mutex_create(&mutex_mp3);
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mp3_info = (struct flash_mp3_hdl *)calloc(1, sizeof(struct flash_mp3_hdl));
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}
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late_initcall(flash_mp3_open);
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/***************上面为提示音播放部分*********************************************/
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#endif //CONFIG_MP3_DEC_ENABLE
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