mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
0b70d2a086
Relading with correct bug number so DONTBUILD. --HG-- extra : amend_source : 6e05de7729c27761564124212b7d4cbe3318e482
517 lines
13 KiB
C++
517 lines
13 KiB
C++
/* 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 "MediaEngineDefault.h"
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#include "nsCOMPtr.h"
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#include "nsDOMFile.h"
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#include "nsILocalFile.h"
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#include "Layers.h"
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#include "ImageContainer.h"
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#include "ImageTypes.h"
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#include "prmem.h"
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#include "nsContentUtils.h"
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#include "nsIFilePicker.h"
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#include "nsIPrefService.h"
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#include "nsIPrefBranch.h"
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#ifdef MOZ_WIDGET_ANDROID
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#include "AndroidBridge.h"
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#include "nsISupportsUtils.h"
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#endif
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#ifdef MOZ_WEBRTC
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#include "YuvStamper.h"
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#endif
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#define VIDEO_RATE USECS_PER_S
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#define AUDIO_RATE 16000
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#define AUDIO_FRAME_LENGTH ((AUDIO_RATE * MediaEngine::DEFAULT_AUDIO_TIMER_MS) / 1000)
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namespace mozilla {
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using namespace mozilla::gfx;
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NS_IMPL_ISUPPORTS(MediaEngineDefaultVideoSource, nsITimerCallback)
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/**
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* Default video source.
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*/
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MediaEngineDefaultVideoSource::MediaEngineDefaultVideoSource()
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: mTimer(nullptr), mMonitor("Fake video")
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{
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mImageContainer = layers::LayerManager::CreateImageContainer();
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mState = kReleased;
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}
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MediaEngineDefaultVideoSource::~MediaEngineDefaultVideoSource()
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{}
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void
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MediaEngineDefaultVideoSource::GetName(nsAString& aName)
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{
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aName.AssignLiteral(MOZ_UTF16("Default Video Device"));
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return;
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}
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void
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MediaEngineDefaultVideoSource::GetUUID(nsAString& aUUID)
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{
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aUUID.AssignLiteral(MOZ_UTF16("1041FCBD-3F12-4F7B-9E9B-1EC556DD5676"));
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return;
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}
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nsresult
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MediaEngineDefaultVideoSource::Allocate(const VideoTrackConstraintsN &aConstraints,
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const MediaEnginePrefs &aPrefs)
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{
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if (mState != kReleased) {
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return NS_ERROR_FAILURE;
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}
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mOpts = aPrefs;
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mOpts.mWidth = mOpts.mWidth ? mOpts.mWidth : MediaEngine::DEFAULT_43_VIDEO_WIDTH;
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mOpts.mHeight = mOpts.mHeight ? mOpts.mHeight : MediaEngine::DEFAULT_43_VIDEO_HEIGHT;
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mState = kAllocated;
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return NS_OK;
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}
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nsresult
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MediaEngineDefaultVideoSource::Deallocate()
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{
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if (mState != kStopped && mState != kAllocated) {
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return NS_ERROR_FAILURE;
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}
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mState = kReleased;
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return NS_OK;
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}
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static void AllocateSolidColorFrame(layers::PlanarYCbCrData& aData,
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int aWidth, int aHeight,
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int aY, int aCb, int aCr)
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{
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MOZ_ASSERT(!(aWidth&1));
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MOZ_ASSERT(!(aHeight&1));
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// Allocate a single frame with a solid color
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int yLen = aWidth*aHeight;
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int cbLen = yLen>>2;
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int crLen = cbLen;
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uint8_t* frame = (uint8_t*) PR_Malloc(yLen+cbLen+crLen);
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memset(frame, aY, yLen);
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memset(frame+yLen, aCb, cbLen);
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memset(frame+yLen+cbLen, aCr, crLen);
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aData.mYChannel = frame;
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aData.mYSize = IntSize(aWidth, aHeight);
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aData.mYStride = aWidth;
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aData.mCbCrStride = aWidth>>1;
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aData.mCbChannel = frame + yLen;
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aData.mCrChannel = aData.mCbChannel + cbLen;
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aData.mCbCrSize = IntSize(aWidth>>1, aHeight>>1);
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aData.mPicX = 0;
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aData.mPicY = 0;
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aData.mPicSize = IntSize(aWidth, aHeight);
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aData.mStereoMode = StereoMode::MONO;
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}
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static void ReleaseFrame(layers::PlanarYCbCrData& aData)
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{
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PR_Free(aData.mYChannel);
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}
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nsresult
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MediaEngineDefaultVideoSource::Start(SourceMediaStream* aStream, TrackID aID)
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{
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if (mState != kAllocated) {
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return NS_ERROR_FAILURE;
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}
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mTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
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if (!mTimer) {
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return NS_ERROR_FAILURE;
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}
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aStream->AddTrack(aID, VIDEO_RATE, 0, new VideoSegment());
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aStream->AdvanceKnownTracksTime(STREAM_TIME_MAX);
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// Remember TrackID so we can end it later
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mTrackID = aID;
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// Start timer for subsequent frames
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#if defined(MOZ_WIDGET_GONK) && defined(DEBUG)
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// B2G emulator debug is very, very slow and has problems dealing with realtime audio inputs
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mTimer->InitWithCallback(this, (1000 / mOpts.mFPS)*10, nsITimer::TYPE_REPEATING_SLACK);
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#else
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mTimer->InitWithCallback(this, 1000 / mOpts.mFPS, nsITimer::TYPE_REPEATING_SLACK);
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#endif
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mState = kStarted;
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return NS_OK;
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}
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nsresult
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MediaEngineDefaultVideoSource::Stop(SourceMediaStream *aSource, TrackID aID)
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{
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if (mState != kStarted) {
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return NS_ERROR_FAILURE;
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}
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if (!mTimer) {
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return NS_ERROR_FAILURE;
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}
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mTimer->Cancel();
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mTimer = nullptr;
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aSource->EndTrack(aID);
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aSource->Finish();
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mState = kStopped;
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return NS_OK;
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}
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nsresult
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MediaEngineDefaultVideoSource::Snapshot(uint32_t aDuration, nsIDOMFile** aFile)
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{
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*aFile = nullptr;
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#ifndef MOZ_WIDGET_ANDROID
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return NS_ERROR_NOT_IMPLEMENTED;
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#else
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nsAutoString filePath;
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nsCOMPtr<nsIFilePicker> filePicker = do_CreateInstance("@mozilla.org/filepicker;1");
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if (!filePicker)
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return NS_ERROR_FAILURE;
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nsXPIDLString title;
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nsContentUtils::GetLocalizedString(nsContentUtils::eFORMS_PROPERTIES, "Browse", title);
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int16_t mode = static_cast<int16_t>(nsIFilePicker::modeOpen);
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nsresult rv = filePicker->Init(nullptr, title, mode);
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NS_ENSURE_SUCCESS(rv, rv);
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filePicker->AppendFilters(nsIFilePicker::filterImages);
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// XXX - This API should be made async
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PRInt16 dialogReturn;
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rv = filePicker->Show(&dialogReturn);
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NS_ENSURE_SUCCESS(rv, rv);
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if (dialogReturn == nsIFilePicker::returnCancel) {
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*aFile = nullptr;
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return NS_OK;
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}
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nsCOMPtr<nsIFile> localFile;
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filePicker->GetFile(getter_AddRefs(localFile));
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if (!localFile) {
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*aFile = nullptr;
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return NS_OK;
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}
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nsCOMPtr<nsIDOMFile> domFile = new nsDOMFileFile(localFile);
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domFile.forget(aFile);
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return NS_OK;
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#endif
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}
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NS_IMETHODIMP
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MediaEngineDefaultVideoSource::Notify(nsITimer* aTimer)
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{
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// Update the target color
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if (mCr <= 16) {
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if (mCb < 240) {
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mCb++;
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} else {
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mCr++;
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}
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} else if (mCb >= 240) {
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if (mCr < 240) {
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mCr++;
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} else {
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mCb--;
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}
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} else if (mCr >= 240) {
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if (mCb > 16) {
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mCb--;
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} else {
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mCr--;
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}
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} else {
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mCr--;
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}
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// Allocate a single solid color image
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nsRefPtr<layers::Image> image = mImageContainer->CreateImage(ImageFormat::PLANAR_YCBCR);
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nsRefPtr<layers::PlanarYCbCrImage> ycbcr_image =
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static_cast<layers::PlanarYCbCrImage*>(image.get());
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layers::PlanarYCbCrData data;
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AllocateSolidColorFrame(data, mOpts.mWidth, mOpts.mHeight, 0x80, mCb, mCr);
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#ifdef MOZ_WEBRTC
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uint64_t timestamp = PR_Now();
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YuvStamper::Encode(mOpts.mWidth, mOpts.mHeight, mOpts.mWidth,
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data.mYChannel,
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reinterpret_cast<unsigned char*>(×tamp), sizeof(timestamp),
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0, 0);
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#endif
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ycbcr_image->SetData(data);
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// SetData copies data, so we can free the frame
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ReleaseFrame(data);
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MonitorAutoLock lock(mMonitor);
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// implicitly releases last image
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mImage = ycbcr_image.forget();
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return NS_OK;
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}
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void
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MediaEngineDefaultVideoSource::NotifyPull(MediaStreamGraph* aGraph,
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SourceMediaStream *aSource,
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TrackID aID,
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StreamTime aDesiredTime,
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TrackTicks &aLastEndTime)
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{
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// AddTrack takes ownership of segment
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VideoSegment segment;
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MonitorAutoLock lock(mMonitor);
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if (mState != kStarted) {
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return;
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}
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// Note: we're not giving up mImage here
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nsRefPtr<layers::Image> image = mImage;
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TrackTicks target = TimeToTicksRoundUp(USECS_PER_S, aDesiredTime);
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TrackTicks delta = target - aLastEndTime;
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if (delta > 0) {
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// nullptr images are allowed
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IntSize size(image ? mOpts.mWidth : 0, image ? mOpts.mHeight : 0);
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segment.AppendFrame(image.forget(), delta, size);
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// This can fail if either a) we haven't added the track yet, or b)
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// we've removed or finished the track.
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if (aSource->AppendToTrack(aID, &segment)) {
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aLastEndTime = target;
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}
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}
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}
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// generate 1k sine wave per second
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class SineWaveGenerator
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{
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public:
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static const int bytesPerSample = 2;
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static const int millisecondsPerSecond = 1000;
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static const int frequency = 1000;
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SineWaveGenerator(int aSampleRate) :
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mTotalLength(aSampleRate / frequency),
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mReadLength(0) {
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MOZ_ASSERT(mTotalLength * frequency == aSampleRate);
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mAudioBuffer = new int16_t[mTotalLength];
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for(int i = 0; i < mTotalLength; i++) {
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// Set volume to -20db. It's from 32768.0 * 10^(-20/20) = 3276.8
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mAudioBuffer[i] = (3276.8f * sin(2 * M_PI * i / mTotalLength));
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}
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}
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// NOTE: only safely called from a single thread (MSG callback)
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void generate(int16_t* aBuffer, int16_t aLengthInSamples) {
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int16_t remaining = aLengthInSamples;
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while (remaining) {
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int16_t processSamples = 0;
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if (mTotalLength - mReadLength >= remaining) {
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processSamples = remaining;
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} else {
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processSamples = mTotalLength - mReadLength;
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}
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memcpy(aBuffer, mAudioBuffer + mReadLength, processSamples * bytesPerSample);
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aBuffer += processSamples;
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mReadLength += processSamples;
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remaining -= processSamples;
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if (mReadLength == mTotalLength) {
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mReadLength = 0;
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}
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}
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}
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private:
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nsAutoArrayPtr<int16_t> mAudioBuffer;
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int16_t mTotalLength;
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int16_t mReadLength;
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};
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/**
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* Default audio source.
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*/
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NS_IMPL_ISUPPORTS(MediaEngineDefaultAudioSource, nsITimerCallback)
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MediaEngineDefaultAudioSource::MediaEngineDefaultAudioSource()
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: mTimer(nullptr)
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{
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mState = kReleased;
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}
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MediaEngineDefaultAudioSource::~MediaEngineDefaultAudioSource()
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{}
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void
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MediaEngineDefaultAudioSource::GetName(nsAString& aName)
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{
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aName.AssignLiteral(MOZ_UTF16("Default Audio Device"));
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return;
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}
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void
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MediaEngineDefaultAudioSource::GetUUID(nsAString& aUUID)
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{
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aUUID.AssignLiteral(MOZ_UTF16("B7CBD7C1-53EF-42F9-8353-73F61C70C092"));
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return;
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}
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nsresult
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MediaEngineDefaultAudioSource::Allocate(const AudioTrackConstraintsN &aConstraints,
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const MediaEnginePrefs &aPrefs)
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{
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if (mState != kReleased) {
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return NS_ERROR_FAILURE;
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}
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mState = kAllocated;
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// generate 1Khz sine wave
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mSineGenerator = new SineWaveGenerator(AUDIO_RATE);
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return NS_OK;
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}
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nsresult
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MediaEngineDefaultAudioSource::Deallocate()
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{
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if (mState != kStopped && mState != kAllocated) {
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return NS_ERROR_FAILURE;
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}
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mState = kReleased;
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return NS_OK;
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}
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nsresult
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MediaEngineDefaultAudioSource::Start(SourceMediaStream* aStream, TrackID aID)
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{
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if (mState != kAllocated) {
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return NS_ERROR_FAILURE;
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}
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mTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
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if (!mTimer) {
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return NS_ERROR_FAILURE;
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}
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mSource = aStream;
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// AddTrack will take ownership of segment
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AudioSegment* segment = new AudioSegment();
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mSource->AddTrack(aID, AUDIO_RATE, 0, segment);
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// We aren't going to add any more tracks
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mSource->AdvanceKnownTracksTime(STREAM_TIME_MAX);
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// Remember TrackID so we can finish later
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mTrackID = aID;
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// 1 Audio frame per 10ms
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#if defined(MOZ_WIDGET_GONK) && defined(DEBUG)
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// B2G emulator debug is very, very slow and has problems dealing with realtime audio inputs
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mTimer->InitWithCallback(this, MediaEngine::DEFAULT_AUDIO_TIMER_MS*10,
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nsITimer::TYPE_REPEATING_PRECISE_CAN_SKIP);
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#else
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mTimer->InitWithCallback(this, MediaEngine::DEFAULT_AUDIO_TIMER_MS,
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nsITimer::TYPE_REPEATING_PRECISE_CAN_SKIP);
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#endif
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mState = kStarted;
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return NS_OK;
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}
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nsresult
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MediaEngineDefaultAudioSource::Stop(SourceMediaStream *aSource, TrackID aID)
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{
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if (mState != kStarted) {
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return NS_ERROR_FAILURE;
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}
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if (!mTimer) {
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return NS_ERROR_FAILURE;
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}
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mTimer->Cancel();
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mTimer = nullptr;
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aSource->EndTrack(aID);
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aSource->Finish();
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mState = kStopped;
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return NS_OK;
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}
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nsresult
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MediaEngineDefaultAudioSource::Snapshot(uint32_t aDuration, nsIDOMFile** aFile)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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MediaEngineDefaultAudioSource::Notify(nsITimer* aTimer)
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{
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AudioSegment segment;
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nsRefPtr<SharedBuffer> buffer = SharedBuffer::Create(AUDIO_FRAME_LENGTH * sizeof(int16_t));
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int16_t* dest = static_cast<int16_t*>(buffer->Data());
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mSineGenerator->generate(dest, AUDIO_FRAME_LENGTH);
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nsAutoTArray<const int16_t*,1> channels;
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channels.AppendElement(dest);
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segment.AppendFrames(buffer.forget(), channels, AUDIO_FRAME_LENGTH);
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mSource->AppendToTrack(mTrackID, &segment);
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return NS_OK;
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}
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void
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MediaEngineDefault::EnumerateVideoDevices(nsTArray<nsRefPtr<MediaEngineVideoSource> >* aVSources) {
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MutexAutoLock lock(mMutex);
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// We once had code here to find a VideoSource with the same settings and re-use that.
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// This no longer is possible since the resolution is being set in Allocate().
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nsRefPtr<MediaEngineVideoSource> newSource = new MediaEngineDefaultVideoSource();
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mVSources.AppendElement(newSource);
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aVSources->AppendElement(newSource);
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return;
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}
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void
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MediaEngineDefault::EnumerateAudioDevices(nsTArray<nsRefPtr<MediaEngineAudioSource> >* aASources) {
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MutexAutoLock lock(mMutex);
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int32_t len = mASources.Length();
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for (int32_t i = 0; i < len; i++) {
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nsRefPtr<MediaEngineAudioSource> source = mASources.ElementAt(i);
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if (source->IsAvailable()) {
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aASources->AppendElement(source);
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}
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}
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// All streams are currently busy, just make a new one.
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if (aASources->Length() == 0) {
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nsRefPtr<MediaEngineAudioSource> newSource =
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new MediaEngineDefaultAudioSource();
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mASources.AppendElement(newSource);
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aASources->AppendElement(newSource);
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}
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return;
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}
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} // namespace mozilla
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