bool StreamReader::rwAsync()
{
if (nullptr == pool)
{
pool = std::make_shared<ZMBCommon::ThreadsPool>(2);
file_pkt_q->imbue(pool);
}
ZMBCommon::CallableDoubleFunc readTask;
readTask.functor = [=]()
{
AVPacket pkt;
::memset(&pkt, 0x00, sizeof(AVPacket));
av_init_packet(&pkt);
int res = ff.read_frame(&pkt);
if (res < 0)
{
return;
}
//dispatch the packet for writing:
auto avpkt = std::make_shared<av::Packet> ();
avpkt->deep_copy(&pkt);
av::Rational tb(*ff.get_timebase());
avpkt->setTimeBase(tb);
assert(avpkt->getSize() > 0);
ZMBCommon::CallableDoubleFunc writeTask;
writeTask.functor = [=]()
{
file_pkt_q->writeAsync(avpkt);
};
pool->submit(writeTask);
};
pool->submit(readTask);
}
void
MediaPictureImpl::copy(AVFrame* src, bool complete) {
if (!src)
VS_THROW(HumbleInvalidArgument("no src"));
// release any memory we have
av_frame_unref(mFrame);
// and copy any data in.
av_frame_ref(mFrame, src);
RefPointer<Rational> timeBase = getTimeBase();
setTimeBase(timeBase.value());
mComplete=complete;
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void init(void)
{
play_led_en();
play_led_off();
dbg_led_en();
dbg_led_on();
// initialize effects
sfx_init();
// initialize SPI EEPROM support
spie_init();
// initialize USART
uart_init();
// setup the UART receive interrupt handler
uartBeginReceive(&receiveCallback);
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// establish event timer & handler
// timer1, event timer
// Set CTC mode (Clear Timer on Compare Match) (p.133)
// Have to set OCR1A *before anything else*, otherwise it gets reset to 0!
PRR &= ~(1<<PRTIM1);
OCR1A = (F_CPU / SAMPLE_RATE);
TCCR1A = 0;
TCCR1B = (1<<WGM12) | // CTC
(1<<CS10);
TIMSK1 = (1<<OCIE1A);
setTimeBase(SAMPLE_RATE);
// setup sleep mode
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sleep_enable();
// setup switch input
SWITCH_DDR &= ~(1<<SWITCH_PIN);
SWITCH_PINS |= (1<<SWITCH_PIN);
SWITCH_PCMSK |= (1<<SWITCH_PCINT);
PCICR |= (1<<SWITCH_PCICR);
registerHighPriorityEvent(fadeStatusLed, 0, EVENT_STATE_NONE);
registerEvent(readNextStatusVal, 500, EVENT_STATE_NONE);
// enable all interrupts
sei();
}
bool StreamReader::rwSync()
{
AVPacket pkt;
av_init_packet(&pkt);
int res = ff.read_frame(&pkt);
if (res >= 0)
{
/*copy contents*/
auto avpkt = std::make_shared<av::Packet> (&pkt);
av::Rational tb(*ff.get_timebase());
avpkt->setTimeBase(tb);
assert(avpkt->getSize() > 0);
file_pkt_q->writeSync(avpkt);
}
return res >= 0;
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// initialize the application
void init(void)
{
_lastChannel = 0;
_samples[CHANNEL_BLU] = 0;
_samples[CHANNEL_GRN] = 0;
// enable ADC & timer1
PRR = (1<<PRTWI) |
(1<<PRTIM2) |
(0<<PRTIM1) |
(1<<PRTIM0) |
(0<<PRADC);
// prepare ADC
ADMUX = (0<<REFS1) |
(1<<REFS0) |
(1<<ADLAR); // left adjust (ADCH has the most-significant 8 bits)
// setup
ADCSRA = (1<<ADEN) |
(0<<ADSC) |
(0<<ADATE) |
(1<<ADIF) |
(1<<ADIE) |
(1<<ADPS2) | // prescale should be ~160 (20mHz/125kHz = 160)
(0<<ADPS1) |
(1<<ADPS0);
// setup
ADCSRB = (0<<ACME) |
(0<<ADTS2) |
(0<<ADTS1) |
(0<<ADTS0);
// disable digial inputs
DIDR0 &= ~((1<<ADC1D) | (1<<ADC0D));
// setup the input channels
DDRC &= ~((1<<ADC0D) | (1<<ADC1D));
// setup the LEDs
leds_en();
// setup the amp mute
aud_ctrl_en();
AUD_CTRL_PORT |= (1<<AUD_CTRL_PIN);
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// establish event timer & handler
// timer1, event timer
// Set CTC mode (Clear Timer on Compare Match) (p.133)
// Have to set OCR1A *before anything else*, otherwise it gets reset to 0!
OCR1A = (F_CPU / SAMPLE_RATE);
TCCR1A = 0;
TCCR1B = (1<<WGM12) | // CTC
(1<<CS10);
TIMSK1 = (1<<OCIE1A);
setTimeBase(SAMPLE_RATE);
sei();
}
void
MediaRaw::setTimeBase(Rational* timeBase)
{
setTimeBase(timeBase, Rational::ROUND_DOWN);
}
