PSW systeme(PSW m) {
if(lastInputTime + 3 < time(NULL)){
system_io_fake_input();
DEBUG_PUTS(DEBUG_T_SYSTEM, "FAKE INPUT");
lastInputTime = time(NULL);
}
if (m.IN == 0)
return m;
DEBUG_PRINTF(DEBUG_T_SHOW_INT, "INTERUPT: %s\n", system_int2str(m.IN));
switch (m.IN) {
case INT_INIT:
return (systeme_init());
case INT_SEGV:
system_int_fatal(m.IN);
break;
case INT_TRACE:
system_int_trace(&m);
break;
case INT_INST:
system_int_fatal(m.IN);
break;
case INT_SYSC:
system_int_sysc(&m);
break;
case INT_CLOCK:
system_clock(&m);
break;
}
return m;
}
static void system_sysc_sleep(PSW* m) {
DEBUG_PRINTF(DEBUG_T_SYSC, "SYSCALL SLEEP(%d)\n", m->DR[m->RI.i]);
process_current()->state = PROC_STATE_SLEEP;
process_current()->waketime = time(NULL) + m->DR[m->RI.i];
++m->PC;
system_clock(m); //Change de processus
}
static int dash_live_worker(const char* file, dash_playlist_t* dash)
{
int r, type;
int avcrecord = 0;
int aacconfig = 0;
uint32_t timestamp;
uint32_t s_timestamp = 0;
uint32_t diff = 0;
uint64_t clock;
flv_parser_t* parser = flv_parser_create(dash_live_onflv, dash);
while (1)
{
void* f = flv_reader_create(file);
clock = system_clock(); // timestamp start from 0
while ((r = flv_reader_read(f, &type, ×tamp, dash->packet, sizeof(dash->packet))) > 0)
{
uint64_t t = system_clock();
if (clock + timestamp > t && clock + timestamp < t + 3 * 1000)
system_sleep(clock + timestamp - t);
else if (clock + timestamp > t + 3 * 1000)
clock = t - timestamp;
timestamp += diff;
s_timestamp = timestamp > s_timestamp ? timestamp : s_timestamp;
r = flv_parser_input(parser, type, dash->packet, r, timestamp);
if (0 != r)
{
assert(0);
break; // TODO: handle send failed
}
}
flv_reader_destroy(f);
diff = s_timestamp + 30;
}
flv_parser_destroy(parser);
}
static void system_sysc_getchar(PSW* m){
DEBUG_PUTS(DEBUG_T_SYSC, "SYSCALL GETCHAR()");
Process* proc = process_current();
char c = system_io_getchar(proc);
//Change de processus (en attente de caractère)
if(proc->state == PROC_STATE_GETCHAR){
system_clock(m);
return;
}
m->DR[m->RI.i] = c;
++m->PC;
}
static void system_sysc_exit(PSW* m) {
DEBUG_PRINTF(DEBUG_T_SYSC, "SYSCALL EXIT()\n");
Process* process = process_current();
if(process == NULL){
DEBUG_PUTS(DEBUG_T_SYSTEM, "Pas de processus courant");
return;
}
DEBUG_PRINTF(DEBUG_T_SYSTEM, "Suppr. proc %d\n", (int)process->number);
process_kill(process);
system_clock(m);
}
int MP4FileSource::Play()
{
bool sendframe = false;
if (3 == m_status)
return 0;
SEND_PACKET:
if (0 == m_frame.bytes)
{
int r = mov_reader_read(m_reader, m_frame.buffer, sizeof(m_frame.buffer), MP4OnRead, &m_frame);
if (r == 0)
{
// 0-EOF
m_status = 3;
SendBye();
return r;
}
else if (r < 0)
{
// error
return r;
}
}
m_status = 1;
uint64_t clock = system_clock();
for (int i = 0; i < m_count; i++)
{
struct media_t* m = &m_media[i];
if (m->track != m_frame.track)
continue;
if (0 == m_clock || m_clock > clock)
m_clock = clock;
if (-1 == m_dts)
m_dts = m_frame.dts;
if (int64_t(clock - m_clock) + m_dts >= m_frame.dts)
{
if (0 == strcmp("H264", m->name))
{
// MPEG4 -> H.264 byte stream
uint8_t* p = m_frame.buffer;
size_t bytes = m_frame.bytes;
while (bytes > 0)
{
// nalu size -> start code
assert(bytes > 4);
uint32_t n = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
p[0] = 0;
p[1] = 0;
p[2] = 0;
p[3] = 1;
bytes -= n + 4;
p += n + 4;
}
//printf("[V] pts: %lld, dts: %lld, clock: %llu\n", m_frame.pts, m_frame.dts, clock);
}
else if (0 == strcmp("MP4A-LATM", m->name) || 0 == strcmp("MPEG4-GENERIC", m->name))
{
// add ADTS header
//printf("[A] pts: %lld, dts: %lld, clock: %llu\n", m_frame.pts, m_frame.dts, clock);
}
else
{
assert(0);
}
if (-1 == m->dts_first)
m->dts_first = m_frame.pts;
m->dts_last = m_frame.pts;
uint32_t timestamp = m->timestamp + m->dts_last - m->dts_first;
/*
if (-1 == m->dts)
m->dts = m_frame.dts;
m->timestamp += m_frame.dts - m->dts;
m->dts = m_frame.dts;
*/
rtp_payload_encode_input(m->packer, m_frame.buffer, m_frame.bytes, (uint32_t)(timestamp * (m->frequency / 1000) /*kHz*/));
SendRTCP(m, clock);
m_frame.bytes = 0; // send flag
sendframe = 1;
goto SEND_PACKET;
}
break;
}
return sendframe ? 1 : 0;
}