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-rw-r--r--dom/media/imagecapture/CaptureTask.cpp197
-rw-r--r--dom/media/imagecapture/CaptureTask.h90
-rw-r--r--dom/media/imagecapture/ImageCapture.cpp212
-rw-r--r--dom/media/imagecapture/ImageCapture.h95
-rw-r--r--dom/media/imagecapture/moz.build16
5 files changed, 610 insertions, 0 deletions
diff --git a/dom/media/imagecapture/CaptureTask.cpp b/dom/media/imagecapture/CaptureTask.cpp
new file mode 100644
index 0000000000..d83de76f5e
--- /dev/null
+++ b/dom/media/imagecapture/CaptureTask.cpp
@@ -0,0 +1,197 @@
+/* -*- 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 "CaptureTask.h"
+#include "gfxUtils.h"
+#include "mozilla/dom/BlobImpl.h"
+#include "mozilla/dom/ImageCapture.h"
+#include "mozilla/dom/ImageCaptureError.h"
+#include "mozilla/dom/ImageEncoder.h"
+#include "mozilla/dom/MediaStreamTrack.h"
+#include "mozilla/dom/VideoStreamTrack.h"
+#include "mozilla/SchedulerGroup.h"
+#include "nsThreadUtils.h"
+#include "VideoSegment.h"
+
+namespace mozilla {
+
+class CaptureTask::MediaTrackEventListener : public MediaTrackListener {
+ public:
+ explicit MediaTrackEventListener(CaptureTask* aCaptureTask)
+ : mCaptureTask(aCaptureTask){};
+
+ // MediaTrackListener methods.
+ void NotifyEnded(MediaTrackGraph* aGraph) override {
+ mCaptureTask->PostTrackEndEvent();
+ }
+
+ private:
+ CaptureTask* mCaptureTask;
+};
+
+CaptureTask::CaptureTask(dom::ImageCapture* aImageCapture)
+ : mImageCapture(aImageCapture),
+ mEventListener(new MediaTrackEventListener(this)),
+ mImageGrabbedOrTrackEnd(false),
+ mPrincipalChanged(false) {}
+
+nsresult CaptureTask::TaskComplete(already_AddRefed<dom::BlobImpl> aBlobImpl,
+ nsresult aRv) {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ DetachTrack();
+
+ nsresult rv;
+ RefPtr<dom::BlobImpl> blobImpl(aBlobImpl);
+
+ // We have to set the parent because the blob has been generated with a valid
+ // one.
+ RefPtr<dom::Blob> blob;
+ if (blobImpl) {
+ blob = dom::Blob::Create(mImageCapture->GetOwnerGlobal(), blobImpl);
+ if (NS_WARN_IF(!blob)) {
+ return NS_ERROR_FAILURE;
+ }
+ }
+
+ if (mPrincipalChanged) {
+ aRv = NS_ERROR_DOM_SECURITY_ERR;
+ IC_LOG("MediaStream principal should not change during TakePhoto().");
+ }
+
+ if (NS_SUCCEEDED(aRv)) {
+ rv = mImageCapture->PostBlobEvent(blob);
+ } else {
+ rv =
+ mImageCapture->PostErrorEvent(dom::ImageCaptureError::PHOTO_ERROR, aRv);
+ }
+
+ // Ensure ImageCapture dereference on main thread here because the TakePhoto()
+ // sequences stopped here.
+ mImageCapture = nullptr;
+
+ return rv;
+}
+
+void CaptureTask::AttachTrack() {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ dom::MediaStreamTrack* track = mImageCapture->GetVideoStreamTrack();
+ track->AddPrincipalChangeObserver(this);
+ track->AddListener(mEventListener.get());
+ track->AddDirectListener(this);
+}
+
+void CaptureTask::DetachTrack() {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ dom::MediaStreamTrack* track = mImageCapture->GetVideoStreamTrack();
+ track->RemovePrincipalChangeObserver(this);
+ track->RemoveListener(mEventListener.get());
+ track->RemoveDirectListener(this);
+}
+
+void CaptureTask::PrincipalChanged(dom::MediaStreamTrack* aMediaStreamTrack) {
+ MOZ_ASSERT(NS_IsMainThread());
+ mPrincipalChanged = true;
+}
+
+void CaptureTask::NotifyRealtimeTrackData(MediaTrackGraph* aGraph,
+ TrackTime aTrackOffset,
+ const MediaSegment& aMedia) {
+ MOZ_ASSERT(aMedia.GetType() == MediaSegment::VIDEO);
+ const VideoSegment& video = static_cast<const VideoSegment&>(aMedia);
+
+ // Callback for encoding complete, it calls on main thread.
+ class EncodeComplete : public dom::EncodeCompleteCallback {
+ public:
+ explicit EncodeComplete(CaptureTask* aTask) : mTask(aTask) {}
+
+ bool CanBeDeletedOnAnyThread() override {
+ // EncodeComplete is used from the main thread only.
+ return false;
+ }
+
+ nsresult ReceiveBlobImpl(
+ already_AddRefed<dom::BlobImpl> aBlobImpl) override {
+ MOZ_ASSERT(NS_IsMainThread());
+ RefPtr<dom::BlobImpl> blobImpl(aBlobImpl);
+ mTask->TaskComplete(blobImpl.forget(), NS_OK);
+ mTask = nullptr;
+ return NS_OK;
+ }
+
+ protected:
+ RefPtr<CaptureTask> mTask;
+ };
+
+ for (VideoSegment::ConstChunkIterator iter(video); !iter.IsEnded();
+ iter.Next()) {
+ VideoChunk chunk = *iter;
+
+ // Extract the first valid video frame.
+ VideoFrame frame;
+ if (chunk.IsNull()) {
+ continue;
+ }
+
+ RefPtr<layers::Image> image;
+ if (chunk.mFrame.GetForceBlack()) {
+ // Create a black image.
+ image = VideoFrame::CreateBlackImage(chunk.mFrame.GetIntrinsicSize());
+ } else {
+ image = chunk.mFrame.GetImage();
+ }
+ if (!image) {
+ MOZ_ASSERT(image);
+ continue;
+ }
+
+ bool wasGrabbed = mImageGrabbedOrTrackEnd.exchange(true);
+ if (wasGrabbed) {
+ return;
+ }
+
+ // Encode image.
+ nsresult rv;
+ nsAutoString type(u"image/jpeg"_ns);
+ nsAutoString options;
+ rv = dom::ImageEncoder::ExtractDataFromLayersImageAsync(
+ type, options, false, image, false, new EncodeComplete(this));
+ if (NS_FAILED(rv)) {
+ PostTrackEndEvent();
+ }
+ }
+}
+
+void CaptureTask::PostTrackEndEvent() {
+ bool wasGrabbed = mImageGrabbedOrTrackEnd.exchange(true);
+ if (wasGrabbed) {
+ return;
+ }
+
+ // Got track end or finish event, stop the task.
+ class TrackEndRunnable : public Runnable {
+ public:
+ explicit TrackEndRunnable(CaptureTask* aTask)
+ : mozilla::Runnable("TrackEndRunnable"), mTask(aTask) {}
+
+ NS_IMETHOD Run() override {
+ mTask->TaskComplete(nullptr, NS_ERROR_FAILURE);
+ mTask = nullptr;
+ return NS_OK;
+ }
+
+ protected:
+ RefPtr<CaptureTask> mTask;
+ };
+
+ IC_LOG("Got MediaTrack track removed or finished event.");
+ nsCOMPtr<nsIRunnable> event = new TrackEndRunnable(this);
+ SchedulerGroup::Dispatch(TaskCategory::Other, event.forget());
+}
+
+} // namespace mozilla
diff --git a/dom/media/imagecapture/CaptureTask.h b/dom/media/imagecapture/CaptureTask.h
new file mode 100644
index 0000000000..efcd0e84b2
--- /dev/null
+++ b/dom/media/imagecapture/CaptureTask.h
@@ -0,0 +1,90 @@
+/* -*- 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/. */
+
+#ifndef CAPTURETASK_H
+#define CAPTURETASK_H
+
+#include "MediaTrackGraph.h"
+#include "MediaTrackListener.h"
+#include "PrincipalChangeObserver.h"
+
+namespace mozilla {
+
+namespace dom {
+class BlobImpl;
+class ImageCapture;
+class MediaStreamTrack;
+} // namespace dom
+
+/**
+ * CaptureTask retrieves image from MediaTrack and encodes the image to jpeg in
+ * ImageEncoder. The whole procedures start at AttachTrack(), it will add this
+ * class into MediaTrack and retrieves an image in MediaTrackGraph thread.
+ * Once the image is retrieved, it will be sent to ImageEncoder and the encoded
+ * blob will be sent out via encoder callback in main thread.
+ *
+ * CaptureTask holds a reference of ImageCapture to ensure ImageCapture won't be
+ * released during the period of the capturing process described above.
+ */
+class CaptureTask : public DirectMediaTrackListener,
+ public dom::PrincipalChangeObserver<dom::MediaStreamTrack> {
+ public:
+ class MediaTrackEventListener;
+
+ // DirectMediaTrackListener methods
+ void NotifyRealtimeTrackData(MediaTrackGraph* aGraph, TrackTime aTrackOffset,
+ const MediaSegment& aMedia) override;
+
+ // PrincipalChangeObserver<MediaStreamTrack> methods
+ void PrincipalChanged(dom::MediaStreamTrack* aMediaStreamTrack) override;
+
+ // CaptureTask methods.
+
+ // It is called when aBlob is ready to post back to script in company with
+ // aRv == NS_OK. If aRv is not NS_OK, it will post an error event to script.
+ //
+ // Note:
+ // this function should be called on main thread.
+ nsresult TaskComplete(already_AddRefed<dom::BlobImpl> aBlobImpl,
+ nsresult aRv);
+
+ // Add listeners into MediaStreamTrack and PrincipalChangeObserver.
+ // It should be on main thread only.
+ void AttachTrack();
+
+ // Remove listeners from MediaStreamTrack and PrincipalChangeObserver.
+ // It should be on main thread only.
+ void DetachTrack();
+
+ // CaptureTask should be created on main thread.
+ explicit CaptureTask(dom::ImageCapture* aImageCapture);
+
+ protected:
+ virtual ~CaptureTask() = default;
+
+ // Post a runnable on main thread to end this task and call TaskComplete to
+ // post error event to script. It is called off-main-thread.
+ void PostTrackEndEvent();
+
+ // The ImageCapture associates with this task. This reference count should not
+ // change in this class unless it clears this reference after a blob or error
+ // event to script.
+ RefPtr<dom::ImageCapture> mImageCapture;
+
+ RefPtr<MediaTrackEventListener> mEventListener;
+
+ // True when an image is retrieved from the video track, or MediaTrackGraph
+ // sends a track finish, end, or removed event. Any thread.
+ Atomic<bool> mImageGrabbedOrTrackEnd;
+
+ // True after MediaStreamTrack principal changes while waiting for a photo
+ // to finish and we should raise a security error.
+ bool mPrincipalChanged;
+};
+
+} // namespace mozilla
+
+#endif // CAPTURETASK_H
diff --git a/dom/media/imagecapture/ImageCapture.cpp b/dom/media/imagecapture/ImageCapture.cpp
new file mode 100644
index 0000000000..0e71aa5603
--- /dev/null
+++ b/dom/media/imagecapture/ImageCapture.cpp
@@ -0,0 +1,212 @@
+/* -*- 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 "ImageCapture.h"
+#include "mozilla/dom/BlobEvent.h"
+#include "mozilla/dom/DOMException.h"
+#include "mozilla/dom/Event.h"
+#include "mozilla/dom/File.h"
+#include "mozilla/dom/ImageCaptureError.h"
+#include "mozilla/dom/ImageCaptureErrorEvent.h"
+#include "mozilla/dom/ImageCaptureErrorEventBinding.h"
+#include "mozilla/dom/VideoStreamTrack.h"
+#include "mozilla/dom/Document.h"
+#include "CaptureTask.h"
+#include "MediaEngineSource.h"
+
+namespace mozilla {
+
+LogModule* GetICLog() {
+ static LazyLogModule log("ImageCapture");
+ return log;
+}
+
+namespace dom {
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(ImageCapture, DOMEventTargetHelper, mTrack)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ImageCapture)
+NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
+
+NS_IMPL_ADDREF_INHERITED(ImageCapture, DOMEventTargetHelper)
+NS_IMPL_RELEASE_INHERITED(ImageCapture, DOMEventTargetHelper)
+
+ImageCapture::ImageCapture(VideoStreamTrack* aTrack,
+ nsPIDOMWindowInner* aOwnerWindow)
+ : DOMEventTargetHelper(aOwnerWindow), mTrack(aTrack) {
+ MOZ_ASSERT(aOwnerWindow);
+ MOZ_ASSERT(aTrack);
+}
+
+ImageCapture::~ImageCapture() { MOZ_ASSERT(NS_IsMainThread()); }
+
+already_AddRefed<ImageCapture> ImageCapture::Constructor(
+ const GlobalObject& aGlobal, MediaStreamTrack& aTrack, ErrorResult& aRv) {
+ nsCOMPtr<nsPIDOMWindowInner> win = do_QueryInterface(aGlobal.GetAsSupports());
+ if (!win) {
+ aRv.Throw(NS_ERROR_FAILURE);
+ return nullptr;
+ }
+
+ if (!aTrack.AsVideoStreamTrack()) {
+ aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
+ return nullptr;
+ }
+
+ RefPtr<ImageCapture> object =
+ new ImageCapture(aTrack.AsVideoStreamTrack(), win);
+
+ return object.forget();
+}
+
+MediaStreamTrack* ImageCapture::GetVideoStreamTrack() const { return mTrack; }
+
+nsresult ImageCapture::TakePhotoByMediaEngine() {
+ // Callback for TakPhoto(), it also monitor the principal. If principal
+ // changes, it returns PHOTO_ERROR with security error.
+ class TakePhotoCallback : public MediaEnginePhotoCallback,
+ public PrincipalChangeObserver<MediaStreamTrack> {
+ public:
+ TakePhotoCallback(VideoStreamTrack* aVideoTrack,
+ ImageCapture* aImageCapture)
+ : mVideoTrack(aVideoTrack),
+ mImageCapture(aImageCapture),
+ mPrincipalChanged(false) {
+ MOZ_ASSERT(NS_IsMainThread());
+ mVideoTrack->AddPrincipalChangeObserver(this);
+ }
+
+ void PrincipalChanged(MediaStreamTrack* aMediaStream) override {
+ mPrincipalChanged = true;
+ }
+
+ nsresult PhotoComplete(already_AddRefed<Blob> aBlob) override {
+ RefPtr<Blob> blob = aBlob;
+
+ if (mPrincipalChanged) {
+ return PhotoError(NS_ERROR_DOM_SECURITY_ERR);
+ }
+ return mImageCapture->PostBlobEvent(blob);
+ }
+
+ nsresult PhotoError(nsresult aRv) override {
+ return mImageCapture->PostErrorEvent(ImageCaptureError::PHOTO_ERROR, aRv);
+ }
+
+ protected:
+ ~TakePhotoCallback() {
+ MOZ_ASSERT(NS_IsMainThread());
+ mVideoTrack->RemovePrincipalChangeObserver(this);
+ }
+
+ const RefPtr<VideoStreamTrack> mVideoTrack;
+ const RefPtr<ImageCapture> mImageCapture;
+ bool mPrincipalChanged;
+ };
+
+ RefPtr<MediaEnginePhotoCallback> callback =
+ new TakePhotoCallback(mTrack, this);
+ return mTrack->GetSource().TakePhoto(callback);
+}
+
+void ImageCapture::TakePhoto(ErrorResult& aResult) {
+ // According to spec, MediaStreamTrack.readyState must be "live"; however
+ // gecko doesn't implement it yet (bug 910249). Instead of readyState, we
+ // check MediaStreamTrack.enable before bug 910249 is fixed.
+ // The error code should be INVALID_TRACK, but spec doesn't define it in
+ // ImageCaptureError. So it returns PHOTO_ERROR here before spec updates.
+ if (!mTrack->Enabled()) {
+ PostErrorEvent(ImageCaptureError::PHOTO_ERROR, NS_ERROR_FAILURE);
+ return;
+ }
+
+ // Try if MediaEngine supports taking photo.
+ nsresult rv = TakePhotoByMediaEngine();
+
+ // It falls back to MediaTrackGraph image capture if MediaEngine doesn't
+ // support TakePhoto().
+ if (rv == NS_ERROR_NOT_IMPLEMENTED) {
+ IC_LOG(
+ "MediaEngine doesn't support TakePhoto(), it falls back to "
+ "MediaTrackGraph.");
+ RefPtr<CaptureTask> task = new CaptureTask(this);
+
+ // It adds itself into MediaTrackGraph, so ImageCapture doesn't need to
+ // hold the reference.
+ task->AttachTrack();
+ }
+}
+
+nsresult ImageCapture::PostBlobEvent(Blob* aBlob) {
+ MOZ_ASSERT(NS_IsMainThread());
+ if (!CheckPrincipal()) {
+ // Media is not same-origin, don't allow the data out.
+ return PostErrorEvent(ImageCaptureError::PHOTO_ERROR,
+ NS_ERROR_DOM_SECURITY_ERR);
+ }
+
+ BlobEventInit init;
+ init.mBubbles = false;
+ init.mCancelable = false;
+ init.mData = aBlob;
+
+ RefPtr<BlobEvent> blob_event =
+ BlobEvent::Constructor(this, u"photo"_ns, init);
+
+ return DispatchTrustedEvent(blob_event);
+}
+
+nsresult ImageCapture::PostErrorEvent(uint16_t aErrorCode, nsresult aReason) {
+ MOZ_ASSERT(NS_IsMainThread());
+ nsresult rv = CheckCurrentGlobalCorrectness();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsString errorMsg;
+ if (NS_FAILED(aReason)) {
+ nsCString name, message;
+ rv = NS_GetNameAndMessageForDOMNSResult(aReason, name, message);
+ if (NS_SUCCEEDED(rv)) {
+ CopyASCIItoUTF16(message, errorMsg);
+ }
+ }
+
+ RefPtr<ImageCaptureError> error =
+ new ImageCaptureError(this, aErrorCode, errorMsg);
+
+ ImageCaptureErrorEventInit init;
+ init.mBubbles = false;
+ init.mCancelable = false;
+ init.mImageCaptureError = error;
+
+ RefPtr<Event> event =
+ ImageCaptureErrorEvent::Constructor(this, u"error"_ns, init);
+
+ return DispatchTrustedEvent(event);
+}
+
+bool ImageCapture::CheckPrincipal() {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ nsCOMPtr<nsIPrincipal> principal = mTrack->GetPrincipal();
+
+ if (!GetOwner()) {
+ return false;
+ }
+ nsCOMPtr<Document> doc = GetOwner()->GetExtantDoc();
+ if (!doc || !principal) {
+ return false;
+ }
+
+ bool subsumes;
+ if (NS_FAILED(doc->NodePrincipal()->Subsumes(principal, &subsumes))) {
+ return false;
+ }
+
+ return subsumes;
+}
+
+} // namespace dom
+} // namespace mozilla
diff --git a/dom/media/imagecapture/ImageCapture.h b/dom/media/imagecapture/ImageCapture.h
new file mode 100644
index 0000000000..957a3ffccc
--- /dev/null
+++ b/dom/media/imagecapture/ImageCapture.h
@@ -0,0 +1,95 @@
+/* -*- 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/. */
+
+#ifndef IMAGECAPTURE_H
+#define IMAGECAPTURE_H
+
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/dom/ImageCaptureBinding.h"
+#include "mozilla/Logging.h"
+
+namespace mozilla {
+
+#ifndef IC_LOG
+LogModule* GetICLog();
+# define IC_LOG(...) \
+ MOZ_LOG(GetICLog(), mozilla::LogLevel::Debug, (__VA_ARGS__))
+#endif
+
+namespace dom {
+
+class Blob;
+class MediaStreamTrack;
+class VideoStreamTrack;
+
+/**
+ * Implementation of https://dvcs.w3.org/hg/dap/raw-file/default/media-stream-
+ * capture/ImageCapture.html.
+ * The ImageCapture accepts a video MediaStreamTrack as input source. The image
+ * will be sent back as a JPG format via Blob event.
+ *
+ * All the functions in ImageCapture are run in main thread.
+ *
+ * There are two ways to capture image, MediaEngineSource and MediaTrackGraph.
+ * When the implementation of MediaEngineSource supports TakePhoto(),
+ * it uses the platform camera to grab image. Otherwise, it falls back
+ * to the MediaTrackGraph way.
+ */
+
+class ImageCapture final : public DOMEventTargetHelper {
+ public:
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ImageCapture, DOMEventTargetHelper)
+
+ IMPL_EVENT_HANDLER(photo)
+ IMPL_EVENT_HANDLER(error)
+
+ // WebIDL members.
+ void TakePhoto(ErrorResult& aResult);
+
+ // The MediaStreamTrack passed into the constructor.
+ MediaStreamTrack* GetVideoStreamTrack() const;
+
+ // nsWrapperCache member
+ JSObject* WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) override {
+ return ImageCapture_Binding::Wrap(aCx, this, aGivenProto);
+ }
+
+ // ImageCapture class members
+ nsPIDOMWindowInner* GetParentObject() { return GetOwner(); }
+
+ static already_AddRefed<ImageCapture> Constructor(const GlobalObject& aGlobal,
+ MediaStreamTrack& aTrack,
+ ErrorResult& aRv);
+
+ ImageCapture(VideoStreamTrack* aTrack, nsPIDOMWindowInner* aOwnerWindow);
+
+ // Post a Blob event to script.
+ nsresult PostBlobEvent(Blob* aBlob);
+
+ // Post an error event to script.
+ // aErrorCode should be one of error codes defined in ImageCaptureError.h.
+ // aReason is the nsresult which maps to a error string in
+ // dom/base/domerr.msg.
+ nsresult PostErrorEvent(uint16_t aErrorCode, nsresult aReason = NS_OK);
+
+ bool CheckPrincipal();
+
+ protected:
+ virtual ~ImageCapture();
+
+ // Capture image by MediaEngine. If it's not support taking photo, this
+ // function should return NS_ERROR_NOT_IMPLEMENTED.
+ nsresult TakePhotoByMediaEngine();
+
+ RefPtr<VideoStreamTrack> mTrack;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // IMAGECAPTURE_H
diff --git a/dom/media/imagecapture/moz.build b/dom/media/imagecapture/moz.build
new file mode 100644
index 0000000000..fdbc73430d
--- /dev/null
+++ b/dom/media/imagecapture/moz.build
@@ -0,0 +1,16 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+EXPORTS.mozilla.dom += ["ImageCapture.h"]
+
+UNIFIED_SOURCES += [
+ "CaptureTask.cpp",
+ "ImageCapture.cpp",
+]
+
+include("/ipc/chromium/chromium-config.mozbuild")
+
+FINAL_LIBRARY = "xul"
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-11 07:55:10 +0000