聚丰项目 > 即时播放视频
即时播放视频，主要是用于通过WiFi传输音频和视频文件到设备中即时播放，并不受限于音频，视频文件的大小。也不需要设备有很大的一个存储空间。采用边播边放边删的一个方式，在设备中每次只存储一部分要播放的文件，播过的文件即时删掉，因此只需一个很小的存储空间就可以播放一个很大的音频视频文件。
diney_db4
diney_db4
团队成员
张文雄 程序员
开发板:NUCLEO-64 STM32F401
主控MCU：STM32F401RET6
WIFI模块：3080B
音频解码模块：VS1053
液晶显示：TFTLCD液晶屏
下位机即时播放音频，视频部分代码。
void mp3_play(void)
{
u8 res;
DIR mp3dir; //Ŀ¼
FILINFO mp3fileinfo;//ÎļþÐÅÏ¢
u8 *fn; //³¤ÎļþÃû
u8 *pname; //´ø·¾¶µÄÎļþÃû
u16 totmp3num; //ÒôÀÖÎļþ×ÜÊý
u16 curindex; //ͼƬµ±Ç°Ë÷Òý
u8 key; //¼üÖµ
u16 temp;
u16 *mp3indextbl; //ÒôÀÖË÷Òý±í
while(f_opendir(&mp3dir,"0:/MUSIC"))//´ò¿ªÍ¼Æ¬Îļþ¼Ð
{
Show_Str(30,190,240,16,"MUSICÎļþ¼Ð´íÎó!",16,0);
delay_ms(200);
LCD_Fill(30,190,240,206,WHITE);//Çå³ýÏÔʾ
delay_ms(200);
}
totmp3num=mp3_get_tnum("0:/MUSIC"); //µÃµ½×ÜÓÐЧÎļþÊý
while(totmp3num==NULL)//ÒôÀÖÎļþ×ÜÊýΪ0
{
Show_Str(30,190,240,16,"ûÓÐÒôÀÖÎļþ!",16,0);
delay_ms(200);
LCD_Fill(30,190,240,146,WHITE);//Çå³ýÏÔʾ
delay_ms(200);
}
mp3fileinfo.lfsize=_MAX_LFN*2+1; //³¤ÎļþÃû×î´ó³¤¶È
mp3fileinfo.lfname=mymalloc(SRAMIN,mp3fileinfo.lfsize); //Ϊ³¤Îļþ»º´æÇø·ÖÅäÄÚ´æ
pname=mymalloc(SRAMIN,mp3fileinfo.lfsize); //Ϊ´ø·¾¶µÄÎļþÃû·ÖÅäÄÚ´æ
mp3indextbl=mymalloc(SRAMIN,2*totmp3num); //ÉêÇë2*totmp3num¸ö×Ö½ÚµÄÄÚ´æ,ÓÃÓÚ´æ·ÅÒôÀÖÎļþË÷Òý
while(mp3fileinfo.lfname==NULL||pname==NULL||mp3indextbl==NULL)//ÄÚ´æ·ÖÅä³ö´í
{
Show_Str(30,190,240,16,"ÄÚ´æ·ÖÅäʧ°Ü!",16,0);
delay_ms(200);
LCD_Fill(30,190,240,146,WHITE);//Çå³ýÏÔʾ
delay_ms(200);
}
VS_HD_Reset();
VS_Soft_Reset();
vsset.mvol=220; //ĬÈÏÉèÖÃÒôÁ¿Îª220.
mp3_vol_show((vsset.mvol-100)/5); //ÒôÁ¿ÏÞÖÆÔÚ:100~250,ÏÔʾµÄʱºò,°´ÕÕ¹«Ê½(vol-100)/5,ÏÔʾ,Ò²¾ÍÊÇ0~30
//¼Ç¼Ë÷Òý
res=f_opendir(&mp3dir,"0:/MUSIC"); //´ò¿ªÄ¿Â¼
if(res==FR_OK)
{
curindex=0;//µ±Ç°Ë÷ÒýΪ0
while(1)//È«²¿²éѯһ±é
{
temp=mp3dir.index; //¼Ç¼µ±Ç°index
res=f_readdir(&mp3dir,&mp3fileinfo); //¶ÁȡĿ¼ÏµÄÒ»¸öÎļþ
if(res!=FR_OK||mp3fileinfo.fname[0]==0)break; //´íÎóÁË/µ½Ä©Î²ÁË,Í˳ö
fn=(u8*)(*mp3fileinfo.lfname?mp3fileinfo.lfname:mp3fileinfo.fname);
res=f_typetell(fn);
if((res&0XF0)==0X40)//È¡¸ßËÄλ,¿´¿´ÊDz»ÊÇÒôÀÖÎļþ
{
mp3indextbl[curindex]=temp;//¼Ç¼Ë÷Òý
curindex++;
}
}
}
curindex=0; //´Ó0¿ªÊ¼ÏÔʾ
res=f_opendir(&mp3dir,(const TCHAR*)"0:/MUSIC"); //´ò¿ªÄ¿Â¼
while(res==FR_OK)//´ò¿ª³É¹¦
{
dir_sdi(&mp3dir,mp3indextbl[curindex]); //¸Ä±äµ±Ç°Ä¿Â¼Ë÷Òý
res=f_readdir(&mp3dir,&mp3fileinfo); //¶ÁȡĿ¼ÏµÄÒ»¸öÎļþ
if(res!=FR_OK||mp3fileinfo.fname[0]==0)break; //´íÎóÁË/µ½Ä©Î²ÁË,Í˳ö
fn=(u8*)(*mp3fileinfo.lfname?mp3fileinfo.lfname:mp3fileinfo.fname);
strcpy((char*)pname,"0:/MUSIC/"); //¸´ÖÆ·¾¶(Ŀ¼)
strcat((char*)pname,(const char*)fn); //½«ÎļþÃû½ÓÔÚºóÃæ
LCD_Fill(30,190,240,190+16,WHITE); //Çå³ý֮ǰµÄÏÔʾ
Show_Str(30,190,240-30,16,fn,16,0); //ÏÔʾ¸èÇúÃû×Ö
mp3_index_show(curindex+1,totmp3num);
key=mp3_play_song(pname); //²¥·ÅÕâ¸öMP3
if(key==2) //ÉÏÒ»Çú
{
if(curindex)curindex--;
else curindex=totmp3num-1;
}else if(key<=1)//ÏÂÒ»Çú
{
curindex++;
if(curindex>=totmp3num)curindex=0;//µ½Ä©Î²µÄʱºò,×Ô¶¯´ÓÍ·¿ªÊ¼
}else break; //²úÉúÁË´íÎó
}
myfree(SRAMIN,mp3fileinfo.lfname); //ÊÍ·ÅÄÚ´æ
myfree(SRAMIN,pname); //ÊÍ·ÅÄÚ´æ
myfree(SRAMIN,mp3indextbl); //ÊÍ·ÅÄÚ´æ
}
unsigned char PlayMusicStreamFunction(unsigned char *dataBuffer, unsigned short lenght)
{
PlayMusicStream = 4;
if(MusicStreamDataCount>100)
{
PlayMusicEnFlag = 1;
MusicStreamDataRecciveCount++;
}
//#if PRINTF_DEBUG == 1
//printf(" ???? MusicStreamDataCount %d , Mp3FlieSizeCount %d ?? %d \r\n",MusicStreamDataCount, Mp3FlieSizeCount,GetSystick1ms());
///#endif
if(PLAY_MUSIC_LENGHT - MusicStreamDataCount >= lenght)
{
memcpy(PlayMusicData+MusicStreamDataCount,dataBuffer,lenght);
MusicStreamDataCount += lenght;
}
else
{
MusicStreamDataCount = 0;
memcpy(PlayMusicData+MusicStreamDataCount,dataBuffer,lenght);
MusicStreamDataCount += lenght;
PlayMusicFlay = 1;
}
if(Mp3FlieSizeCount > MusicStreamDataCount)
{
if((Mp3FlieSizeCount - MusicStreamDataCount) < 4*1024)
return 0;
}
else if(PlayMusicFlay)
{
if((MusicStreamDataCount - Mp3FlieSizeCount) < 4*1024)
return 0;
}
return 1;
}
void SystemProcessPlayMusic(void)
{
//static unsigned int size = 0;
unsigned int lenght = 0;
if(PlayMusicEnFlag)
{
if(StartGetMusicData)
{
StartGetMusicData = 0;
if(PlayMusicStream>3)
{
if(Mp3FlieSizeCount < PLAY_MUSIC_LENGHT)
{
if(MusicStreamDataRecciveCount)
{
MusicStreamDataRecciveCount--;
}
if(StopPlayRobotMusic)
{
StopPlayRobotMusic = 0;
Mp3FlieSizeCount = 0;
PlayMusicEnFlag = 0;
//StopSkillPlay();
//memset(Mp3FileName,0,50);
//memset(PlayMusicData,0,1024);
//f_close(&Mp3_fnew);
#if PRINTF_DEBUG == 1
printf("StopPlayRobotMusic Í£Ö¹²¥·Å \r\n");
#endif
return;
}
lenght = 1024;
//#if PRINTF_DEBUG_fatfs == 1
//printf(" ÕýÔÚ²¥·Å ±ß²¥±ß·Å MusicStreamDataCount %d £¬ Mp3FlieSizeCount %d ʱ¼ä %d \r\n",MusicStreamDataCount, Mp3FlieSizeCount,GetSystick1ms());
//#endif
System.Device.Music.PlayMp3File(PlayMusicData+Mp3FlieSizeCount,lenght);
Mp3FlieSizeCount += lenght;
if(Mp3FlieSizeCount == MusicStreamDataCount)
{
PlayMusicStream = 1;
Mp3FlieSizeCount = 0;
MusicStreamDataCount = 0;
PlayMusicFlay = 0;
}
if(Mp3FlieSizeCount >= PLAY_MUSIC_LENGHT)
{
Mp3FlieSizeCount = 0;
}
}
}
else if(PlayMusicStream == 0)
{
if(Mp3FlieSizeCount < Mp3_fnew.fsize)
{
f_lseek(&Mp3_fnew, Mp3FlieSizeCount);
lenght = Mp3_fnew.fsize - Mp3FlieSizeCount;
if(lenght > MAX_BYTECOUNT)
lenght = MAX_BYTECOUNT;
Mp3_res_sd = f_read(&Mp3_fnew, PlayMusicData, lenght, &Mp3_fnum);
if(Mp3_res_sd == FR_OK)
{
play_music((unsigned char*)(&PlayMusicData[0]),lenght);
Mp3FlieSizeCount += lenght;
if(Mp3FlieSizeCount >= Mp3_fnew.fsize)
{
Mp3FlieSizeCount = 0;
PlayMusicEnFlag = 0;
f_close(&Mp3_fnew);
}
}
else
{
Mp3FlieSizeCount = 0;
PlayMusicEnFlag = 0;
f_close(&Mp3_fnew);
}
#if PRINTF_DEBUG == 1
printf("²¥·Åmp3Îļþ count %ld \r\n",Mp3FlieSizeCount);
#endif
}
else
{
Mp3FlieSizeCount = 0;
PlayMusicEnFlag = 0;
f_close(&Mp3_fnew);
}
}
}
}
}
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