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106 lines
2.0 KiB
C++
106 lines
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <assert.h>
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#include "BaseInputPin.h"
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#include <vector>
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using namespace std;
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namespace mozilla {
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namespace media {
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STDMETHODIMP
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BaseInputPin::QueryInterface(REFIID aIId, void **aInterface)
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{
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if (!aInterface) {
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return E_POINTER;
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}
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if (aIId == IID_IMemInputPin) {
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*aInterface = static_cast<IMemInputPin*>(this);
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AddRef();
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return S_OK;
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}
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return BasePin::QueryInterface(aIId, aInterface);
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}
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STDMETHODIMP
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BaseInputPin::BeginFlush()
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{
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CriticalSectionAutoEnter lock(*mLock);
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assert(!mFlushing);
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mFlushing = true;
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return S_OK;
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}
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STDMETHODIMP
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BaseInputPin::EndFlush()
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{
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CriticalSectionAutoEnter lock(*mLock);
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assert(mFlushing);
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mFlushing = false;
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return S_OK;
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}
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STDMETHODIMP
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BaseInputPin::GetAllocatorRequirements(ALLOCATOR_PROPERTIES*)
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{
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return E_NOTIMPL;
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}
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STDMETHODIMP
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BaseInputPin::ReceiveCanBlock()
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{
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return S_OK;
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}
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STDMETHODIMP
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BaseInputPin::Receive(IMediaSample* aSample)
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{
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if (mFlushing) {
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return S_FALSE;
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}
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return S_OK;
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}
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STDMETHODIMP
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BaseInputPin::ReceiveMultiple(IMediaSample **aSamples, long aSampleCount, long *aProcessedCount)
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{
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HRESULT hr = S_OK;
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*aProcessedCount = 0;
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while (aSampleCount-- > 0) {
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hr = Receive(aSamples[*aProcessedCount]);
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// Refuse when S_FALSE
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if (hr != S_OK) {
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break;
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}
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(*aProcessedCount)++;
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}
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return hr;
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}
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STDMETHODIMP
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BaseInputPin::GetAllocator(IMemAllocator **aAllocator)
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{
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// It appears DirectShow will create an allocator for us in this case.
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return VFW_E_NO_ALLOCATOR;
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}
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STDMETHODIMP
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BaseInputPin::NotifyAllocator(IMemAllocator *aAllocator, BOOL aReadOnly)
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{
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mAllocator = aAllocator;
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mReadOnly = aReadOnly;
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return S_OK;
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}
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}
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}
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