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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 "AudioSinkInputPin.h"
#include "AudioSinkFilter.h"
#include "SampleSink.h"
#include "mozilla/Logging.h"
#include <wmsdkidl.h>
using namespace mozilla::media;
namespace mozilla {
static LazyLogModule gDirectShowLog("DirectShowDecoder");
#define LOG(...) MOZ_LOG(gDirectShowLog, mozilla::LogLevel::Debug, (__VA_ARGS__))
AudioSinkInputPin::AudioSinkInputPin(wchar_t* aObjectName,
AudioSinkFilter* aFilter,
mozilla::CriticalSection* aLock,
HRESULT* aOutResult)
: BaseInputPin(aObjectName, aFilter, aLock, aOutResult, aObjectName),
mSegmentStartTime(0)
{
MOZ_COUNT_CTOR(AudioSinkInputPin);
mSampleSink = new SampleSink();
}
AudioSinkInputPin::~AudioSinkInputPin()
{
MOZ_COUNT_DTOR(AudioSinkInputPin);
}
HRESULT
AudioSinkInputPin::GetMediaType(int aPosition, MediaType* aOutMediaType)
{
NS_ENSURE_TRUE(aPosition >= 0, E_INVALIDARG);
NS_ENSURE_TRUE(aOutMediaType, E_POINTER);
if (aPosition > 0) {
return S_FALSE;
}
// Note: We set output as PCM, as IEEE_FLOAT only works when using the
// MP3 decoder as an MFT, and we can't do that while using DirectShow.
aOutMediaType->SetType(&MEDIATYPE_Audio);
aOutMediaType->SetSubtype(&MEDIASUBTYPE_PCM);
aOutMediaType->SetType(&FORMAT_WaveFormatEx);
aOutMediaType->SetTemporalCompression(FALSE);
return S_OK;
}
HRESULT
AudioSinkInputPin::CheckMediaType(const MediaType* aMediaType)
{
if (!aMediaType) {
return E_INVALIDARG;
}
GUID majorType = *aMediaType->Type();
if (majorType != MEDIATYPE_Audio && majorType != WMMEDIATYPE_Audio) {
return E_INVALIDARG;
}
if (*aMediaType->Subtype() != MEDIASUBTYPE_PCM) {
return E_INVALIDARG;
}
if (*aMediaType->FormatType() != FORMAT_WaveFormatEx) {
return E_INVALIDARG;
}
// We accept the media type, stash its layout format!
WAVEFORMATEX* wfx = (WAVEFORMATEX*)(aMediaType->pbFormat);
GetSampleSink()->SetAudioFormat(wfx);
return S_OK;
}
AudioSinkFilter*
AudioSinkInputPin::GetAudioSinkFilter()
{
return reinterpret_cast<AudioSinkFilter*>(mFilter);
}
SampleSink*
AudioSinkInputPin::GetSampleSink()
{
return mSampleSink;
}
HRESULT
AudioSinkInputPin::SetAbsoluteMediaTime(IMediaSample* aSample)
{
HRESULT hr;
REFERENCE_TIME start = 0, end = 0;
hr = aSample->GetTime(&start, &end);
NS_ENSURE_TRUE(SUCCEEDED(hr), E_FAIL);
{
CriticalSectionAutoEnter lock(*mLock);
start += mSegmentStartTime;
end += mSegmentStartTime;
}
hr = aSample->SetMediaTime(&start, &end);
NS_ENSURE_TRUE(SUCCEEDED(hr), E_FAIL);
return S_OK;
}
HRESULT
AudioSinkInputPin::Receive(IMediaSample* aSample )
{
HRESULT hr;
NS_ENSURE_TRUE(aSample, E_POINTER);
hr = BaseInputPin::Receive(aSample);
if (SUCCEEDED(hr) && hr != S_FALSE) { // S_FALSE == flushing
// Set the timestamp of the sample after being adjusted for
// seeking/segments in the "media time" attribute. When we seek,
// DirectShow starts a new "segment", and starts labeling samples
// from time=0 again, so we need to correct for this to get the
// actual timestamps after seeking.
hr = SetAbsoluteMediaTime(aSample);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = GetSampleSink()->Receive(aSample);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
}
return S_OK;
}
already_AddRefed<IMediaSeeking>
AudioSinkInputPin::GetConnectedPinSeeking()
{
RefPtr<IPin> peer = GetConnected();
if (!peer)
return nullptr;
RefPtr<IMediaSeeking> seeking;
peer->QueryInterface(static_cast<IMediaSeeking**>(getter_AddRefs(seeking)));
return seeking.forget();
}
HRESULT
AudioSinkInputPin::BeginFlush()
{
HRESULT hr = media::BaseInputPin::BeginFlush();
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
GetSampleSink()->Flush();
return S_OK;
}
HRESULT
AudioSinkInputPin::EndFlush()
{
HRESULT hr = media::BaseInputPin::EndFlush();
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Reset the EOS flag, so that if we're called after a seek we still work.
GetSampleSink()->Reset();
return S_OK;
}
HRESULT
AudioSinkInputPin::EndOfStream(void)
{
HRESULT hr = media::BaseInputPin::EndOfStream();
if (FAILED(hr) || hr == S_FALSE) {
// Pin is stil flushing.
return hr;
}
GetSampleSink()->SetEOS();
return S_OK;
}
HRESULT
AudioSinkInputPin::NewSegment(REFERENCE_TIME tStart,
REFERENCE_TIME tStop,
double dRate)
{
CriticalSectionAutoEnter lock(*mLock);
// Record the start time of the new segment, so that we can store the
// correct absolute timestamp in the "media time" each incoming sample.
mSegmentStartTime = tStart;
return S_OK;
}
} // namespace mozilla
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