void Widget::contextMenuEvent(QContextMenuEvent *event)
{
QMenu menu;
menu.addAction(tr("删除"),this, SLOT(DelateMusic()));
menu.addAction(tr("清空列表"), this, SLOT(ClearPlayList()));
menu.exec(event->globalPos());
}
/*----------------------------------------------------------------------------------------
函数名: PlayChange
参数:
code：传入需要判断的码值
返回值:
1/0：连续出现50次-1时返回一次0/其余返回0
描述:
分析code值所处的作用（音量调节、录音、普通播音），并按照分类分别执行
----------------------------------------------------------------------------------------*/
int8_t PlayChange(int32_t dwCode)
{
static int32_t dwValidCode;
static uint8_t cntErr = 0;
if ((dwCode!=-1 && (dwCode != dwValidCode || cntErr > 5))){
LOG(("dwCode:%d",dwCode));
g_bHaveCamAction = 1;
dwValidCode = dwCode;
ClearPlayList();
if(IsAboutMusic(dwCode));
else if(IsChangeRole(dwCode));
else if(IsVolumeCtrl(dwCode));
// else if(HaveRecord(dwCode));
else PlayBegin(dwCode);
cntErr = 0;
}
else if(dwCode == -1){
cntErr++;
}else if(dwCode == dwValidCode){
cntErr = 0;
}
if(cntErr >= 50){
cntErr = 0;
return 0;
}
return 1;
}
/*----------------------------------------------------------------------------------------
函数名: DPWMPlayUninit
参数:
None
返回值:
None
描述:
停止PDMA操作，关闭DPWM设备
----------------------------------------------------------------------------------------*/
static void DPWMPlayUninit(void)
{
DrvPDMA_EnableCH(eDRVPDMA_CHANNEL_2, eDRVPDMA_DISABLE);
while(DrvPDMA_IsCHBusy(eDRVPDMA_CHANNEL_2));
DrvDPWM_DisablePDMA();
DrvDPWM_Close();
}
///*----------------------------------------------------------------------------------------
//函数名: ClearPlayList
//参数:
// dwPlayCurAddr：音频开始地址
// dwAudioEndAddr：音频结束的地址
//返回值:
// None
//描述:
// 初始化一下播音参数，解码数据填满环形缓冲区，开启PDMA和DPWM播音
//----------------------------------------------------------------------------------------*/
void ClearPlayList(void)
{
g_cntPlayAudio = g_nCurPlayAudio = 0;
g_bNoInterruptedAudio = 0;
}
///*----------------------------------------------------------------------------------------
//函数名: StopPlayAudio
//参数:
// None
//返回值:
// None
//描述:
// 停止播音并关闭设备，从中采用让音量逐渐变小的方式避免"啪"的声音
//----------------------------------------------------------------------------------------*/
void StopPlayAudio(void)
{
uint8_t i,nVolumeIndexBak = 0;
nVolumeIndexBak = g_nVolumeIndex;
for( i=0; i < CYCLEBUFFER_SIZE/320; i++){
g_nVolumeIndex -= 1;
if( (g_dwLastWritedPosition + SIREN7FRAME) > ((uint32_t)g_waCycBuffer + CYCLEBUFFER_SIZE * 2) )
g_dwLastWritedPosition = (uint32_t)g_waCycBuffer;
PlayVolumeCtrl((int16_t *)g_dwLastWritedPosition,SIREN7FRAME);
g_dwLastWritedPosition += SIREN7FRAME;
}
g_nVolumeIndex = nVolumeIndexBak;
g_bStopPlay = 1;
DPWMPlayUninit();
}
///*----------------------------------------------------------------------------------------
//函数名: PlayResume
//参数:
// dwPlayCurAddr：音频开始地址
// dwAudioEndAddr：音频结束的地址
//返回值:
// None
//描述:
// 初始化一下播音参数，解码数据填满环形缓冲区，开启PDMA和DPWM播音
//----------------------------------------------------------------------------------------*/
void PlayResume(void)
{
if(g_bStopPlay){
g_bStopPlay = 0;
memset(g_waCycBuffer, 0xFF, sizeof(g_waCycBuffer));
PDMAStart();
PlayWork(0, 0, 0);
}
}
///*----------------------------------------------------------------------------------------
//函数名: AddToPlayList
//参数:
// dwPlayCurAddr：音频开始地址
// dwAudioEndAddr：音频结束的地址
//返回值:
// None
//描述:
// 初始化一下播音参数，解码数据填满环形缓冲区，开启PDMA和DPWM播音
//----------------------------------------------------------------------------------------*/
void AddToPlayList(uint32_t dwFirstCode)
{
if(g_cntPlayAudio != PLAY_LIST_MAX_CNT)
g_dwaPlayList[g_cntPlayAudio++] = (uint16_t)dwFirstCode;
else
LOG(("link Audio exceed "));
}
///*----------------------------------------------------------------------------------------
//函数名: PlayList
//参数:
// dwPlayCurAddr：音频开始地址
// dwAudioEndAddr：音频结束的地址
//返回值:
// None
//描述:
// 初始化一下播音参数，解码数据填满环形缓冲区，开启PDMA和DPWM播音
//----------------------------------------------------------------------------------------*/
void PlayList(void)
{
if((!g_bNoInterruptedAudio || g_bStopPlay) && (g_nCurPlayAudio != g_cntPlayAudio)){
PlayBegin((uint32_t)g_dwaPlayList[g_nCurPlayAudio++]);
g_bNoInterruptedAudio = 1;
}else if(g_nCurPlayAudio == g_cntPlayAudio){
ClearPlayList();
}
}
void ProcessHead(void)
{
#define HEAD_AUDIO_NUM 3
static uint8_t nHeadAudioIndex = 0;
if(!g_bStopPlay){
ClearPlayList();
StopPlayAudio();
}else{
PlayBegin(PEN_HEAD_AUDIO1 + nHeadAudioIndex);
if((++nHeadAudioIndex) >= HEAD_AUDIO_NUM){
nHeadAudioIndex = 0;
}
}
}
/*----------------------------------------------------------------------------------------
函数名: PlayService
参数:
None
返回值:
None
描述:
播音服务的主循环，负责按键检测，数据解码并填充缓冲区，电量检测等等
----------------------------------------------------------------------------------------*/
void PlayService(void)
{
KEYMSG msg;
LedFlashForCam(LED_ON);
while(g_nState == PLAY_STATE)
{
if(KEY_MsgGet(&msg)){
// LOG(("KEY:Value:%d,TYPE:%d,HOLDTIME:%d\r\n",msg.Key_MsgValue,msg.Key_MsgType,msg.Key_HoldTime));
g_bHaveKeyAction = 1;
if(msg.Key_MsgValue == KEY_ON_OFF){
if(msg.Key_MsgType == KEY_TYPE_SP){
if(!g_bStopPlay)
StopPlayAudio();
else
PlayResume();
}else if(msg.Key_MsgType == KEY_TYPE_LP){
g_nState = PWRDOWN_STATE;
}
}else if(msg.Key_MsgValue == KEY_RECORD){
if(msg.Key_MsgType == KEY_TYPE_LP){
g_nState = RECORD_STATE;
}else if(msg.Key_MsgType == KEY_TYPE_SP){
PlayRecord();
}
}else if(msg.Key_MsgValue == KEY_MACESR){
if(msg.Key_MsgType == KEY_TYPE_LP){
g_nState = MVREC_STATE;
}else if(msg.Key_MsgType == KEY_TYPE_SP){
g_nState = ESR_STATE;
}
}else if(msg.Key_MsgValue == KEY_TOUCH){
if(msg.Key_MsgType == KEY_TYPE_SP){
ProcessHead();
}
}
}
PlayWork(0,0,0);
PlayList();
if(!PlayChange(GetCamCode())){
// cam_init(eDRVPDMA_CHANNEL_3); //笔头初始化参数
}
CommonCheck();
}
ClearPlayList();
StopPlayAudio();
LedFlashForCam(LED_OFF);
}
