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/* 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/. */
#ifndef FAKE_MEDIA_STREAMIMPL_H_
#define FAKE_MEDIA_STREAMIMPL_H_
#include "FakeMediaStreams.h"
#include "nspr.h"
#include "nsError.h"
void LogTime(AsyncLatencyLogger::LatencyLogIndex index, uint64_t b, int64_t c) {}
void LogLatency(AsyncLatencyLogger::LatencyLogIndex index, uint64_t b, int64_t c) {}
static const int AUDIO_BUFFER_SIZE = 1600;
static const int NUM_CHANNELS = 2;
static const int GRAPH_RATE = 16000;
NS_IMPL_ISUPPORTS0(Fake_DOMMediaStream)
// Fake_MediaStream
double Fake_MediaStream::StreamTimeToSeconds(mozilla::StreamTime aTime) {
return static_cast<double>(aTime)/GRAPH_RATE;
}
mozilla::TrackTicks Fake_MediaStream::TimeToTicksRoundUp(mozilla::TrackRate aRate,
mozilla::StreamTime aTime) {
return (aTime * aRate) / GRAPH_RATE;
}
mozilla::StreamTime
Fake_MediaStream::TicksToTimeRoundDown(mozilla::TrackRate aRate,
mozilla::TrackTicks aTicks) {
return aTicks * GRAPH_RATE / aRate;
}
// Fake_SourceMediaStream
nsresult Fake_SourceMediaStream::Start() {
mTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
if (!mTimer) {
return NS_ERROR_FAILURE;
}
mTimer->InitWithCallback(mPeriodic, 100, nsITimer::TYPE_REPEATING_SLACK);
return NS_OK;
}
nsresult Fake_SourceMediaStream::Stop() {
mozilla::MutexAutoLock lock(mMutex);
if (mTimer)
mTimer->Cancel();
mPeriodic->Detach();
return NS_OK;
}
void Fake_SourceMediaStream::Periodic() {
mozilla::MutexAutoLock lock(mMutex);
// Pull more audio-samples iff pulling is enabled
// and we are not asked by the signaling agent to stop
//pulling data.
if (mPullEnabled && !mStop) {
// 100 ms matches timer interval and AUDIO_BUFFER_SIZE @ 16000 Hz
mDesiredTime += 100;
for (std::set<RefPtr<Fake_MediaStreamListener>>::iterator it =
mListeners.begin(); it != mListeners.end(); ++it) {
(*it)->NotifyPull(nullptr, TicksToTimeRoundDown(1000 /* ms per s */,
mDesiredTime));
}
}
}
// Fake_MediaStreamTrack
void Fake_MediaStreamTrack::AddListener(Fake_MediaStreamTrackListener *aListener)
{
mOwningStream->GetInputStream()->AddTrackListener(aListener, mTrackID);
}
void Fake_MediaStreamTrack::RemoveListener(Fake_MediaStreamTrackListener *aListener)
{
mOwningStream->GetInputStream()->RemoveTrackListener(aListener, mTrackID);
}
// Fake_MediaStreamBase
nsresult Fake_MediaStreamBase::Start() {
mTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
if (!mTimer) {
return NS_ERROR_FAILURE;
}
mTimer->InitWithCallback(mPeriodic, 100, nsITimer::TYPE_REPEATING_SLACK);
return NS_OK;
}
nsresult Fake_MediaStreamBase::Stop() {
// Lock the mutex so that we know that after this
// has returned, periodic will not be firing again
// and so it's safe to destruct.
mozilla::MutexAutoLock lock(mMutex);
mTimer->Cancel();
return NS_OK;
}
// Fake_AudioStreamSource
void Fake_AudioStreamSource::Periodic() {
mozilla::MutexAutoLock lock(mMutex);
//Are we asked to stop pumping audio samples ?
if(mStop) {
return;
}
//Generate Signed 16 Bit Audio samples
RefPtr<mozilla::SharedBuffer> samples =
mozilla::SharedBuffer::Create(AUDIO_BUFFER_SIZE * NUM_CHANNELS * sizeof(int16_t));
int16_t* data = reinterpret_cast<int16_t *>(samples->Data());
for(int i=0; i<(1600*2); i++) {
//saw tooth audio sample
data[i] = ((mCount % 8) * 4000) - (7*4000)/2;
mCount++;
}
mozilla::AudioSegment segment;
AutoTArray<const int16_t *,1> channels;
channels.AppendElement(data);
segment.AppendFrames(samples.forget(),
channels,
AUDIO_BUFFER_SIZE,
PRINCIPAL_HANDLE_NONE);
for(std::set<RefPtr<Fake_MediaStreamListener>>::iterator it = mListeners.begin();
it != mListeners.end(); ++it) {
(*it)->NotifyQueuedTrackChanges(nullptr, // Graph
0, // TrackID
0, // Offset TODO(ekr@rtfm.com) fix
static_cast<mozilla::TrackEventCommand>(0), // ???
segment,
nullptr, // Input stream
-1); // Input track id
}
for(std::vector<BoundTrackListener>::iterator it = mTrackListeners.begin();
it != mTrackListeners.end(); ++it) {
it->mListener->NotifyQueuedChanges(nullptr, // Graph
0, // Offset TODO(ekr@rtfm.com) fix
segment);
}
}
// Fake_MediaPeriodic
NS_IMPL_ISUPPORTS(Fake_MediaPeriodic, nsITimerCallback)
NS_IMETHODIMP
Fake_MediaPeriodic::Notify(nsITimer *timer) {
if (mStream)
mStream->Periodic();
++mCount;
return NS_OK;
}
#if 0
#define WIDTH 320
#define HEIGHT 240
#define RATE USECS_PER_S
#define USECS_PER_S 1000000
#define FPS 10
NS_IMETHODIMP
Fake_VideoStreamSource::Notify(nsITimer* aTimer)
{
#if 0
mozilla::layers::BufferRecycleBin bin;
RefPtr<mozilla::layers::PlanarYCbCrImage> image = new
mozilla::layers::PlanarYCbCrImage(&bin);
const uint8_t lumaBpp = 8;
const uint8_t chromaBpp = 4;
int len = ((WIDTH * HEIGHT) * 3 / 2);
uint8_t* frame = (uint8_t*) PR_Malloc(len);
memset(frame, 0x80, len); // Gray
mozilla::layers::PlanarYCbCrData data;
data.mYChannel = frame;
data.mYSize = mozilla::gfx::IntSize(WIDTH, HEIGHT);
data.mYStride = WIDTH * lumaBpp / 8.0;
data.mCbCrStride = WIDTH * chromaBpp / 8.0;
data.mCbChannel = frame + HEIGHT * data.mYStride;
data.mCrChannel = data.mCbChannel + HEIGHT * data.mCbCrStride / 2;
data.mCbCrSize = mozilla::gfx::IntSize(WIDTH / 2, HEIGHT / 2);
data.mPicX = 0;
data.mPicY = 0;
data.mPicSize = mozilla::gfx::IntSize(WIDTH, HEIGHT);
data.mStereoMode = mozilla::layers::StereoMode::MONO;
mozilla::VideoSegment segment;
segment.AppendFrame(image.forget(), USECS_PER_S / FPS,
mozilla::gfx::IntSize(WIDTH, HEIGHT));
// TODO(ekr@rtfm.com): are we leaking?
#endif
return NS_OK;
}
#if 0
// Fake up buffer recycle bin
mozilla::layers::BufferRecycleBin::BufferRecycleBin() :
mLock("mozilla.layers.BufferRecycleBin.mLock") {
}
void mozilla::layers::BufferRecycleBin::RecycleBuffer(uint8_t* buffer, uint32_t size) {
PR_Free(buffer);
}
uint8_t *mozilla::layers::BufferRecycleBin::GetBuffer(uint32_t size) {
return (uint8_t *)PR_MALLOC(size);
}
// YCbCrImage constructor (from ImageLayers.cpp)
mozilla::layers::PlanarYCbCrImage::PlanarYCbCrImage(BufferRecycleBin *aRecycleBin)
: Image(nsnull, ImageFormat::PLANAR_YCBCR)
, mBufferSize(0)
, mRecycleBin(aRecycleBin)
{
}
#endif
#endif
#endif
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