void TQTcpServer::processIncoming()
{
while (server_->hasPendingConnections()) {
// take ownership of the QTcpSocket; technically it could be deleted
// when the QTcpServer is destroyed, but any real app should delete this
// class before deleting the QTcpServer that we are using
shared_ptr<QTcpSocket> connection(server_->nextPendingConnection());
shared_ptr<TTransport> transport;
shared_ptr<TProtocol> iprot;
shared_ptr<TProtocol> oprot;
try {
transport = shared_ptr<TTransport>(new TQIODeviceTransport(connection));
iprot = shared_ptr<TProtocol>(pfact_->getProtocol(transport));
oprot = shared_ptr<TProtocol>(pfact_->getProtocol(transport));
} catch(...) {
qWarning("[TQTcpServer] Failed to initialize transports/protocols");
continue;
}
ctxMap_[connection.get()] =
shared_ptr<ConnectionContext>(
new ConnectionContext(connection, transport, iprot, oprot));
connect(connection.get(), SIGNAL(readyRead()), SLOT(beginDecode()));
// need to use QueuedConnection since we will be deleting the socket in the slot
connect(connection.get(), SIGNAL(disconnected()), SLOT(socketClosed()),
Qt::QueuedConnection);
}
}
int main(int argc, char**argv)
{
int pid = 0;//fork();
if (pid == 0) {
// exec("sh",argv);
}
int decodepid = fork();
if (decodepid == 0) {
exec("mp3dec", argv);
}
int mp3pid = 0;//fork();
if (mp3pid == 0) {
// exec("decode", argv);
}
setSampleRate(44100);
Bit_stream_struc bs;
struct frame_params fr_ps;
struct III_side_info_t III_side_info;
unsigned int old_crc;
layer info;
unsigned long bitsPerSlot;
/*if (argc==1) {
printf("Useage:decode file.mp3 output.pcm\n");
return;
}*/
fr_ps.header = &info;
open_bit_stream_r(&bs, "in.mp3", BUFFER_SIZE);
int frame_Num = 0;
while(!end_bs(&bs)) {
//³¢ÊÔ֡ͬ²œ
seek_sync(&bs, SYNC_WORD, SYNC_WORD_LENGTH);
decode_info(&bs, &(fr_ps));
//œ«fr_ps.headerÖеÄÐÅÏ¢œâ¶Áµœfr_psµÄÏà¹ØÓòÖÐ
hdr_to_frps(&(fr_ps));
//Êä³öÏà¹ØÐÅÏ¢
frame_Num = frame_Num + 1;
printf(0, "read frame: %d\n", frame_Num);
if (info.error_protection)
buffer_CRC(&bs, &old_crc);
switch (info.lay) {
case 3:
{
int nSlots, main_data_end, flush_main;
int bytes_to_discard;
static int frame_start = 0;
bitsPerSlot = 8;
//È¡SideÐÅÏ¢
III_get_side_info(&bs, &(III_side_info), &(fr_ps));
nSlots = main_data_slots(fr_ps);
//¶ÁÖ÷ÊýŸÝ(Audio Data)
for (; nSlots > 0; nSlots--) /* read main data. */
hputbuf((unsigned int) getbits(&bs,8), 8);
main_data_end = hsstell() / 8; /*of privious frame*/
if ( (flush_main=(hsstell() % bitsPerSlot))==TRUE ) {
hgetbits((int)(bitsPerSlot - flush_main));
main_data_end ++;
}
bytes_to_discard = frame_start - main_data_end - III_side_info.main_data_begin ;
if( main_data_end > 4096 ) { frame_start -= 4096;
rewindNbytes( 4096 );
}
frame_start += main_data_slots(fr_ps);
// printf(0, "discard : %d\n", bytes_to_discard);
if (bytes_to_discard < 0) {
printf(0, "discard: %d %d %d\n", frame_start, main_data_end, III_side_info.main_data_begin);
//printf(0, "Not enough main data to decode frame %d. Frame discarded.\n",frame_Num - 1);
break;
}
for (; bytes_to_discard > 0; bytes_to_discard--) hgetbits(8);
beginDecode(&fr_ps, &III_side_info);
}
break;
default:
// printf("\nOnly layer III supported!\n");
exit();
break;
}
}
close_bit_stream_r(&bs);
printf(0, "\nPlaying done.\n");
kill(pid);
kill(decodepid);
kill(mp3pid);
wait();
wait();
wait();
exit();
}
