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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "SampleSink.h"
#include "AudioSinkFilter.h"
#include "AudioSinkInputPin.h"
#include "VideoUtils.h"
#include "mozilla/Logging.h"
using namespace mozilla::media;
namespace mozilla {
static LazyLogModule gDirectShowLog("DirectShowDecoder");
#define LOG(...) MOZ_LOG(gDirectShowLog, mozilla::LogLevel::Debug, (__VA_ARGS__))
SampleSink::SampleSink()
: mMonitor("SampleSink"),
mIsFlushing(false),
mAtEOS(false)
{
MOZ_COUNT_CTOR(SampleSink);
}
SampleSink::~SampleSink()
{
MOZ_COUNT_DTOR(SampleSink);
}
void
SampleSink::SetAudioFormat(const WAVEFORMATEX* aInFormat)
{
NS_ENSURE_TRUE(aInFormat, );
ReentrantMonitorAutoEnter mon(mMonitor);
memcpy(&mAudioFormat, aInFormat, sizeof(WAVEFORMATEX));
}
void
SampleSink::GetAudioFormat(WAVEFORMATEX* aOutFormat)
{
MOZ_ASSERT(aOutFormat);
ReentrantMonitorAutoEnter mon(mMonitor);
memcpy(aOutFormat, &mAudioFormat, sizeof(WAVEFORMATEX));
}
HRESULT
SampleSink::Receive(IMediaSample* aSample)
{
ReentrantMonitorAutoEnter mon(mMonitor);
while (true) {
if (mIsFlushing) {
return S_FALSE;
}
if (!mSample) {
break;
}
if (mAtEOS) {
return E_UNEXPECTED;
}
// Wait until the consumer thread consumes the sample.
mon.Wait();
}
if (MOZ_LOG_TEST(gDirectShowLog, LogLevel::Debug)) {
REFERENCE_TIME start = 0, end = 0;
HRESULT hr = aSample->GetMediaTime(&start, &end);
LOG("SampleSink::Receive() [%4.2lf-%4.2lf]",
(double)RefTimeToUsecs(start) / USECS_PER_S,
(double)RefTimeToUsecs(end) / USECS_PER_S);
}
mSample = aSample;
// Notify the signal, to awaken the consumer thread in WaitForSample()
// if necessary.
mon.NotifyAll();
return S_OK;
}
HRESULT
SampleSink::Extract(RefPtr<IMediaSample>& aOutSample)
{
ReentrantMonitorAutoEnter mon(mMonitor);
// Loop until we have a sample, or we should abort.
while (true) {
if (mIsFlushing) {
return S_FALSE;
}
if (mSample) {
break;
}
if (mAtEOS) {
// Order is important here, if we have a sample, we should return it
// before reporting EOS.
return E_UNEXPECTED;
}
// Wait until the producer thread gives us a sample.
mon.Wait();
}
aOutSample = mSample;
if (MOZ_LOG_TEST(gDirectShowLog, LogLevel::Debug)) {
int64_t start = 0, end = 0;
mSample->GetMediaTime(&start, &end);
LOG("SampleSink::Extract() [%4.2lf-%4.2lf]",
(double)RefTimeToUsecs(start) / USECS_PER_S,
(double)RefTimeToUsecs(end) / USECS_PER_S);
}
mSample = nullptr;
// Notify the signal, to awaken the producer thread in Receive()
// if necessary.
mon.NotifyAll();
return S_OK;
}
void
SampleSink::Flush()
{
LOG("SampleSink::Flush()");
ReentrantMonitorAutoEnter mon(mMonitor);
mIsFlushing = true;
mSample = nullptr;
mon.NotifyAll();
}
void
SampleSink::Reset()
{
LOG("SampleSink::Reset()");
ReentrantMonitorAutoEnter mon(mMonitor);
mIsFlushing = false;
mAtEOS = false;
}
void
SampleSink::SetEOS()
{
LOG("SampleSink::SetEOS()");
ReentrantMonitorAutoEnter mon(mMonitor);
mAtEOS = true;
// Notify to unblock any threads waiting for samples in
// Extract() or Receive(). Now that we're at EOS, no more samples
// will come!
mon.NotifyAll();
}
bool
SampleSink::AtEOS()
{
ReentrantMonitorAutoEnter mon(mMonitor);
return mAtEOS && !mSample;
}
} // namespace mozilla
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