/*================================================================
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* Copyright (C) 2018 AISPEECH Ltd. All rights reserved.
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*
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* 文件名称：music.c
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* 创 建 者：chenjie.gu
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* 创建日期：2018年05月24日
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* 描 述：
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*
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================================================================*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "audio_player.h"
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#include <time.h>
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#include "cJSON.h"
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#include <unistd.h>
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#include <pthread.h>
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#include <stdbool.h>
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audio_player_t *aplayer = NULL;
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float vol_multiplier = 0.5;
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int vol_system = 70;
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int player_is_end = 0;
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pthread_mutex_t music_mutex;
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int play_judge_f(int index, int count, int mode);
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static int g_player_ev = AUDIO_PLAYER_EV_END;
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void play_manager_f(const char *cmd, const char *data, char **user_data);
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bool music_is_playing(void) {
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if (g_player_ev == AUDIO_PLAYER_EV_END ||
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g_player_ev == AUDIO_PLAYER_EV_ERROR ||
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g_player_ev == AUDIO_PLAYER_EV_STOPPED)
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return false;
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else
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return true;
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}
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static int play_callback(void *userdata, int ev) {
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printf("++++++%s: ev %d\n", __func__, ev);
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if (ev == AUDIO_PLAYER_EV_END) {
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player_is_end = 1;
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}
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g_player_ev = ev;
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return 0;
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}
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void *player_routine(void *user) {
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while (1) {
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if (player_is_end) {
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player_is_end = 0;
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play_manager_f("player.end", NULL, NULL);
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}
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usleep(100 * 1000);
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}
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return (void *)0;
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}
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int music_player_init(char *dev) {
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aplayer = audio_player_new(play_callback, NULL);
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audio_player_set_device(aplayer, dev);
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audio_player_set_channel_volume(aplayer, vol_multiplier);
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pthread_mutex_init(&music_mutex, NULL);
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system("amixer cset name='Master Playback Volume' 70");
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return 0;
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}
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int music_player_play(char *path) {
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audio_player_play(aplayer, path);
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}
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int music_player_start() {
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int ret;
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pthread_t tid;
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pthread_create(&tid, NULL, player_routine, NULL);
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return 0;
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}
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static void send_vol_update_topic (int vol) {
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printf("send_vol_update_topic vol is %d\n", vol);
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char out[128] = {0};
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sprintf(out, "{\"volume\":\"%d\"}", vol);
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printf("send_vol_update_topic is %s\n", out);
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busserver_send_msg("ui.control.topics.response", out);
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}
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static void send_music_update_topic(int change, int status, int mode, int index, cJSON *list) {
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printf("send_music_update_topic %d %d %d %d %p\n", change, status, mode, index, list);
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char *out;
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cJSON *root, *root2;
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char *music;
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root = cJSON_CreateObject();
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root2 = cJSON_CreateObject();
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cJSON_AddNumberToObject(root, "change", change);
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cJSON_AddNumberToObject(root, "status", status);
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cJSON_AddNumberToObject(root, "mode", mode);
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cJSON_AddNumberToObject(root, "currentIndex", index);
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if (list) {
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cJSON *tmp = cJSON_GetObjectItem(list, "content");
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cJSON_AddItemReferenceToObject(root, "list", tmp);
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}
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music = cJSON_PrintUnformatted(root);
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cJSON_Delete(root);
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cJSON_AddStringToObject(root2, "music", music);
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out = cJSON_PrintUnformatted(root2);
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cJSON_Delete(root2);
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printf("send_music_update_topic is %s\n", out);
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busserver_send_msg("ui.control.topics.response", out);
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free(music);
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free(out);
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}
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void play_manager_f(const char *cmd, const char *data, char **user_data) {
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/*
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* 1. volume.set
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* 2. play.list.update
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* 3. play.list.clear
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* 4. play.list.get
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* 5. status.set
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* 6. change.set
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* 7. mode.set
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* 8. play.choose.update
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* 9. play.collect.choose
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* 10. play.uncollect.choose
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* 11. player.end
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* 12. music.info
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*/
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enum PLAY_MODE {
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sequence, random, single, loop
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};
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enum PLAY_STATUS {
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idle, playing, pause
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};
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static enum PLAY_MODE mode = sequence;
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static enum PLAY_STATUS status = idle;
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static int count = 0;
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static int index = 0;
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static int old_index = 0;
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static cJSON *root = NULL;
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printf("play_manager_f cmd: %s\tdata: %s\n", cmd, data);
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pthread_mutex_lock(&music_mutex);
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if (!strcmp(cmd, "volume.set")) {
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// 设置音量
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if (!strcmp(data, "+")) {
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vol_system += 10;
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if (vol_system > 100) vol_system = 100;
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}
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else if (!strcmp(data, "-")) {
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vol_system -= 10;
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if (vol_system < 0) vol_system = 0;
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}
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else {
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vol_system = atoi(data);
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}
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char cmd[64] = {0};
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sprintf(cmd, "amixer cset name='Master Playback Volume' %d", vol_system);
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system(cmd);
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printf("set vol to %d\n", vol_system);
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send_vol_update_topic(vol_system);
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}
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else if (!strcmp(cmd, "play.list.clear")) {
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// 清空播放列表
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printf("clear the play list info\n");
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audio_player_stop(aplayer);
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cJSON_Delete(root);
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root = NULL;
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index = 0;
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old_index = 0;
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count = 0;
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status = idle;
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send_music_update_topic(0, status, mode, index, NULL);
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}
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else if (!strcmp(cmd, "play.list.get")) {
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}
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else if (!strcmp(cmd, "music.info")) {
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if (root) {
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cJSON *temp, *music;
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music = cJSON_GetObjectItem(root, "content");
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temp = cJSON_GetArrayItem(music, index);
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*user_data = cJSON_Print(temp);
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}
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else *user_data = NULL;
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}
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else if (!strcmp(cmd, "play.list.check")) {
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// 开始真正播放
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cJSON *temp, *music;
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if (root) {
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if (status == idle) {
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temp = cJSON_GetObjectItem(root, "count");
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count = temp->valueint;
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if (count > 0) {
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status = playing;
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music = cJSON_GetObjectItem(root, "content");
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temp = cJSON_GetArrayItem(music, index);
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temp = cJSON_GetObjectItem(temp, "linkUrl");
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printf("ready to play url is %s\n", temp->valuestring);
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audio_player_play(aplayer, temp->valuestring);
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}
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}
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else if (status == pause) {
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status = playing;
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audio_player_resume(aplayer);
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}
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send_music_update_topic(0, status, mode, index, root);
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}
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else send_music_update_topic(0, status, mode, index, NULL);
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}
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else if (!strcmp(cmd, "play.list.update")) {
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// 更新播放列表
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// TODO: update
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printf("update the play list info\n");
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audio_player_stop(aplayer);
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if (root) cJSON_Delete(root);
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root = NULL;
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index = 0;
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old_index = 0;
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count = 0;
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status = idle;
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root = cJSON_Parse(data);
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}
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else if (!strcmp(cmd, "status.set")) {
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// 设置播放状态
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printf("status.set data is %s status is %d\n", data, status);
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if (!strcmp(data, "pause") && status == playing) {
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status = pause;
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audio_player_pause(aplayer);
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}
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else if (!strcmp(data, "resume") && status == pause) {
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status = playing;
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audio_player_resume(aplayer);
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}
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else if (!strcmp(data, "replay") && status == pause) {
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status = playing;
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}
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else if (!strcmp(data, "step")) {
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if (status == playing) {
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status = pause;
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audio_player_pause(aplayer);
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}
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else if (status == pause) {
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status = playing;
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audio_player_resume(aplayer);
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}
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}
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send_music_update_topic(0, status, mode, index, root);
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}
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else if (!strcmp(cmd, "mode.set")) {
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// 播放模式
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if (!strcmp(data, "sequence")) mode = sequence;
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else if (!strcmp(data, "random")) mode = random;
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else if (!strcmp(data, "single")) mode = single;
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else if (!strcmp(data, "loop")) mode = loop;
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send_music_update_topic(0, status, mode, index, root);
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}
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else if (!strcmp(cmd, "change.set")) {
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// 歌曲切换
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// TODO: update
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if (!strcmp(data, "prev")) {
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// 上一首
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index = old_index;
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}
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else if (!strcmp(data, "next")) {
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// 下一首
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old_index = index;
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index = play_judge_f(index, count, mode);
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}
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else if (!strcmp(data, "change")) {
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// 换一首
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old_index = index;
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index = play_judge_f(index, count, mode);
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}
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if (index == -1) {
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// 播放结束
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cJSON_Delete(root);
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audio_player_stop(aplayer);
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root = NULL;
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index = 0;
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old_index = 0;
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count = 0;
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status = idle;
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}
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else {
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// 待播放指定的音频
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status = idle;
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}
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}
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else if (!strcmp(cmd, "play.choose.update")) {
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// 播放特定歌曲
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old_index = index;
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index = atoi(data);
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cJSON *temp, *music;
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music = cJSON_GetObjectItem(root, "content");
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temp = cJSON_GetArrayItem(music, index);
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temp = cJSON_GetObjectItem(temp, "linkUrl");
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printf("ready to play url is %s\n", temp->valuestring);
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audio_player_stop(aplayer);
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audio_player_play(aplayer, temp->valuestring);
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send_music_update_topic(0, status, mode, index, root);
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}
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else if (!strcmp(cmd, "play.collect.choose")) {
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// 收藏歌曲
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}
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else if (!strcmp(cmd, "play.uncollect.choose")) {
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// 取消收藏
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}
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else if (!strcmp(cmd, "player.end") && root) {
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// 播放器播放结束
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// TODO: update
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old_index = index;
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index = play_judge_f(index, count, mode);
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printf("play_judge_f index is %d\n", index);
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if (index == -1) {
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// 播放结束
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audio_player_stop(aplayer);
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cJSON_Delete(root);
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root = NULL;
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index = 0;
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old_index = 0;
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count = 0;
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status = idle;
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send_music_update_topic(0, status, mode, index, NULL);
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}
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else {
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// 播放指定的音频
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cJSON *temp, *music;
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music = cJSON_GetObjectItem(root, "content");
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temp = cJSON_GetArrayItem(music, index);
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temp = cJSON_GetObjectItem(temp, "linkUrl");
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printf("ready to play url is %s\n", temp->valuestring);
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audio_player_stop(aplayer);
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audio_player_play(aplayer, temp->valuestring);
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send_music_update_topic(0, status, mode, index, root);
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}
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}
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pthread_mutex_unlock(&music_mutex);
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}
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int play_judge_f(int index, int count, int mode) {
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// sequence, random, single, loop
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if (mode == 0) {
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// 顺序播放
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if (index + 1 == count) return -1;
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else return index + 1;
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}
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else if (mode == 1) {
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// 随机播放
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srand(time(0));
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return rand() % count;
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}
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else if (mode == 2) {
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// 单曲循环
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return index;
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}
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else if (mode == 3) {
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// 循环播放
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return (index + 1) % count;
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}
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else return -1;
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}
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