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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 "WMFMediaDataDecoder.h"
#include "VideoUtils.h"
#include "WMFUtils.h"
#include "nsTArray.h"
#include "mozilla/Logging.h"
#include "mozilla/SyncRunnable.h"
#define LOG(...) MOZ_LOG(sPDMLog, mozilla::LogLevel::Debug, (__VA_ARGS__))
namespace mozilla {
WMFMediaDataDecoder::WMFMediaDataDecoder(MFTManager* aMFTManager,
TaskQueue* aTaskQueue,
MediaDataDecoderCallback* aCallback)
: mTaskQueue(aTaskQueue)
, mCallback(aCallback)
, mMFTManager(aMFTManager)
, mIsFlushing(false)
, mIsShutDown(false)
{
}
WMFMediaDataDecoder::~WMFMediaDataDecoder()
{
}
RefPtr<MediaDataDecoder::InitPromise>
WMFMediaDataDecoder::Init()
{
MOZ_ASSERT(!mIsShutDown);
return InitPromise::CreateAndResolve(mMFTManager->GetType(), __func__);
}
// A single telemetry sample is reported for each MediaDataDecoder object
// that has detected error or produced output successfully.
static void
SendTelemetry(unsigned long hr)
{
// Collapse the error codes into a range of 0-0xff that can be viewed in
// telemetry histograms. For most MF_E_* errors, unique samples are used,
// retaining the least significant 7 or 8 bits. Other error codes are
// bucketed.
uint32_t sample;
if (SUCCEEDED(hr)) {
sample = 0;
} else if (hr < 0xc00d36b0) {
sample = 1; // low bucket
} else if (hr < 0xc00d3700) {
sample = hr & 0xffU; // MF_E_*
} else if (hr <= 0xc00d3705) {
sample = 0x80 + (hr & 0xfU); // more MF_E_*
} else if (hr < 0xc00d6d60) {
sample = 2; // mid bucket
} else if (hr <= 0xc00d6d78) {
sample = hr & 0xffU; // MF_E_TRANSFORM_*
} else {
sample = 3; // high bucket
}
nsCOMPtr<nsIRunnable> runnable = NS_NewRunnableFunction(
[sample] {
/* Telemetry STUB */
});
NS_DispatchToMainThread(runnable);
}
void
WMFMediaDataDecoder::Shutdown()
{
MOZ_DIAGNOSTIC_ASSERT(!mIsShutDown);
if (mTaskQueue) {
mTaskQueue->Dispatch(NewRunnableMethod(this, &WMFMediaDataDecoder::ProcessShutdown));
} else {
ProcessShutdown();
}
mIsShutDown = true;
}
void
WMFMediaDataDecoder::ProcessShutdown()
{
if (mMFTManager) {
mMFTManager->Shutdown();
mMFTManager = nullptr;
if (!mRecordedError && mHasSuccessfulOutput) {
SendTelemetry(S_OK);
}
}
}
// Inserts data into the decoder's pipeline.
void
WMFMediaDataDecoder::Input(MediaRawData* aSample)
{
MOZ_ASSERT(mCallback->OnReaderTaskQueue());
MOZ_DIAGNOSTIC_ASSERT(!mIsShutDown);
nsCOMPtr<nsIRunnable> runnable =
NewRunnableMethod<RefPtr<MediaRawData>>(
this,
&WMFMediaDataDecoder::ProcessDecode,
RefPtr<MediaRawData>(aSample));
mTaskQueue->Dispatch(runnable.forget());
}
void
WMFMediaDataDecoder::ProcessDecode(MediaRawData* aSample)
{
if (mIsFlushing) {
// Skip sample, to be released by runnable.
return;
}
HRESULT hr = mMFTManager->Input(aSample);
if (FAILED(hr)) {
NS_WARNING("MFTManager rejected sample");
mCallback->Error(MediaResult(NS_ERROR_DOM_MEDIA_DECODE_ERR,
RESULT_DETAIL("MFTManager::Input:%x", hr)));
if (!mRecordedError) {
SendTelemetry(hr);
mRecordedError = true;
}
return;
}
mLastStreamOffset = aSample->mOffset;
ProcessOutput();
}
void
WMFMediaDataDecoder::ProcessOutput()
{
RefPtr<MediaData> output;
HRESULT hr = S_OK;
while (SUCCEEDED(hr = mMFTManager->Output(mLastStreamOffset, output)) &&
output) {
mHasSuccessfulOutput = true;
mCallback->Output(output);
}
if (hr == MF_E_TRANSFORM_NEED_MORE_INPUT) {
mCallback->InputExhausted();
} else if (FAILED(hr)) {
NS_WARNING("WMFMediaDataDecoder failed to output data");
mCallback->Error(MediaResult(NS_ERROR_DOM_MEDIA_DECODE_ERR,
RESULT_DETAIL("MFTManager::Output:%x", hr)));
if (!mRecordedError) {
SendTelemetry(hr);
mRecordedError = true;
}
}
}
void
WMFMediaDataDecoder::ProcessFlush()
{
if (mMFTManager) {
mMFTManager->Flush();
}
}
void
WMFMediaDataDecoder::Flush()
{
MOZ_ASSERT(mCallback->OnReaderTaskQueue());
MOZ_DIAGNOSTIC_ASSERT(!mIsShutDown);
mIsFlushing = true;
nsCOMPtr<nsIRunnable> runnable =
NewRunnableMethod(this, &WMFMediaDataDecoder::ProcessFlush);
SyncRunnable::DispatchToThread(mTaskQueue, runnable);
mIsFlushing = false;
}
void
WMFMediaDataDecoder::ProcessDrain()
{
if (!mIsFlushing && mMFTManager) {
// Order the decoder to drain...
mMFTManager->Drain();
// Then extract all available output.
ProcessOutput();
}
mCallback->DrainComplete();
}
void
WMFMediaDataDecoder::Drain()
{
MOZ_ASSERT(mCallback->OnReaderTaskQueue());
MOZ_DIAGNOSTIC_ASSERT(!mIsShutDown);
mTaskQueue->Dispatch(NewRunnableMethod(this, &WMFMediaDataDecoder::ProcessDrain));
}
bool
WMFMediaDataDecoder::IsHardwareAccelerated(nsACString& aFailureReason) const {
MOZ_ASSERT(!mIsShutDown);
return mMFTManager && mMFTManager->IsHardwareAccelerated(aFailureReason);
}
void
WMFMediaDataDecoder::SetSeekThreshold(const media::TimeUnit& aTime)
{
MOZ_ASSERT(mCallback->OnReaderTaskQueue());
MOZ_DIAGNOSTIC_ASSERT(!mIsShutDown);
RefPtr<WMFMediaDataDecoder> self = this;
nsCOMPtr<nsIRunnable> runnable =
NS_NewRunnableFunction([self, aTime]() {
media::TimeUnit threshold = aTime;
self->mMFTManager->SetSeekThreshold(threshold);
});
mTaskQueue->Dispatch(runnable.forget());
}
} // namespace mozilla
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