pBuffer RenderOperationDesc::Operation::
process(pBuffer b)
{
Signal::Interval input = b?b->getInterval ():Signal::Interval();
b = wrapped_->process (b);
Signal::Interval output = b?b->getInterval ():Signal::Interval();
render_target_.write ()->processedData (input, output);
return b;
}
pBuffer process(pBuffer b) override
{
Interval I = b->getInterval ();
Signal::IntervalType i = std::max(0ll, I.first);
FLAC__stream_decoder_seek_absolute(decoder, i);
while (true)
{
fmt->block->set_sample_offset (i);
*b |= *fmt->block;
i += fmt->last_blocksize;
if (i>=I.last)
break;
if (!FLAC__stream_decoder_process_single (decoder))
{
Log("flacfile: failed reading at %d") % i;
break;
}
}
// if reading before start, zeros
if (I.first < 0)
*b |= Buffer(Signal::Interval(I.first, 0), b->sample_rate (), b->number_of_channels ());
// if b extends EOF, zeros
if (i < I.last)
*b |= Buffer(Interval(i,I.last), b->sample_rate (), b->number_of_channels ());
return b;
}
void Step::
finishTask(Step::ptr step, int taskid, pBuffer result)
{
Interval result_interval;
if (result)
result_interval = result->getInterval ();
TASKINFO TaskInfo ti(format("Step::finishTask %2% on %1%")
% step.raw ()->operation_name()
% result_interval);
if (result) {
// Result must have the same number of channels and sample rate as previous cache.
// Call deprecateCache(Interval::Interval_ALL) to erase the cache when chainging number of channels or sample rate.
step.raw ()->cache_->put (result);
}
auto self = step.write ();
int matched_task = self->running_tasks.count (taskid);
if (1 != matched_task) {
Log("C = %d, taskid = %x on %s") % matched_task % taskid % self->operation_name ();
EXCEPTION_ASSERT_EQUALS( 1, matched_task );
}
Intervals expected_output = self->running_tasks[ taskid ];
Intervals update_miss = expected_output - result_interval;
self->not_started_ |= update_miss;
if (!result) {
TASKINFO TaskInfo(format("The task was cancelled. Restoring %1% for %2%")
% update_miss
% self->operation_name());
} else {
if (update_miss) {
TaskInfo(format("These samples were supposed to be updated by the task but missed: %1% by %2%")
% update_miss
% self->operation_name());
}
if (result_interval - expected_output) {
// These samples were not supposed to be updated by the task but were calculated anyway
TaskInfo(format("Unexpected extras: %1% = (%2%) - (%3%) from %4%")
% (result_interval - expected_output)
% result_interval
% expected_output
% self->operation_name());
// The samples are still marked as invalid. Would need to remove the
// extra calculated samples from not_started_ but that would fail
// in a situation where deprecatedCache is called after the task has
// been created. So not_started_ can't be modified here (unless calls
// to deprecatedCache were tracked).
}
}
self->running_tasks.erase ( taskid );
self.unlock ();
step.raw ()->wait_for_tasks_.notify_all ();
}
void SinkSource::
put( pBuffer b )
{
TIME_SINKSOURCE TaskTimer tt("%s %s", __FUNCTION__, b->getInterval().toString().c_str());
/* CANONICAL {
QMutexLocker l(&_mutex);
// Simply remove previous overlapping buffer, don't bother merging.
foreach( pBuffer& s, _cache) {
{
if (!s)
s = b;
else if (s->sample_offset < b->sample_offset+b->number_of_samples() && s->sample_offset + s->number_of_samples() > b->sample_offset)
{
s = b;
b.reset(); // If copied more than once, set others to 0
}
}
}
_cache.push_back( b );
*/
merge(b);
}
void SinkSource::
putExpectedSamples( pBuffer buffer, const Intervals& expected )
{
BufferSource bs( buffer );
const Intervals I = expected & buffer->getInterval();
BOOST_FOREACH( const Interval& i, I )
{
pBuffer s = bs.readFixedLength( i );
put( s );
}
pBuffer OperationSetSilent::Operation::
process (pBuffer b)
{
Signal::Interval i = section_ & b->getInterval ();
if (i) {
Buffer zero(i, b->sample_rate(), b->number_of_channels ());
*b |= zero;
}
return b;
}