webrtc::VideoSource resolves the kMaxFrameRate constraint by capping the desired framerate to kMaxFrameRate. That framerate is then passed into cricket::VideoCapturer::GetBestCaptureFormat(). The default implementation will choose a format from the supported formats list. Instead, we should override this function in AndroidVideoCapturer to give VideoCapturerAndroid.java the opportunity to choose a suitable framerate range.
BUG=webrtc:4938
R=glaznev@webrtc.org
Review URL: https://codereview.webrtc.org/1308953004 .
Cr-Commit-Position: refs/heads/master@{#9805}
The primary fix in this CL is to remove the dangling |thread_| pointer in AndroidVideoCapturerJni. That thread is not safe to use after Stop() has been called. Even after Stop() has been called, we must still be able to return late frames to Java in order to not leak them, so that path has been made thread safe instead. To make sure that we always return frames, the Java frame should be wrapped in a scoped_refptr as quickly as possible, so this CL moves the wrapping from AndroidVideoCapturer to AndroidVideoCapturerJni. This also removes the need for the interface function AndroidVideoCapturerDelegate::ReturnBuffer().
Some other minor changes are:
* Remove |valid_global_refs_| and all logic related to that. Now that rtc::Bind() captures method objects as scoped_refptr, the destructor of AndroidVideoCapturerJni will not be called before all frames are returned.
* Remove global ref |j_frame_observer_|. No need for this, we don’t call it and it is kept alive with standard Java memory management.
* Add helper function ShallowCenterCrop() for VideoFrameBuffers. This functionality already exists in the constructor of WrappedI420Buffer, but it’s more convenient to have it as a separate function.
BUG=webrtc:4742,webrtc:4909
R=glaznev@webrtc.org, tommi@webrtc.org
Review URL: https://codereview.webrtc.org/1307973002 .
Cr-Commit-Position: refs/heads/master@{#9784}
This cl uses the YV12 buffers from Java without a copy if no rotation is needed. Buffers are returned to the camera when the encoder and renderers no longer needs them.
This add a new frame type WrappedI420Buffer based in that allows for wrapping existing memory buffers and getting a notification when it is no longer used.
AndroidVideoCapturer::FrameFactory::CreateAliasedFrame wraps frame received from Java. For each wrapped frame a new reference to AndroidVideoCapturerDelegate is held to ensure that the delegate can not be destroyed until all frames have been returned.
Some overlap exist in webrtcvideoframe.cc and webrtcvideengine.cc with https://webrtc-codereview.appspot.com/47399004/ that is expected to be landed before this cl.
BUG=1128
R=glaznev@webrtc.org, magjed@webrtc.orgTBR=mflodman@webrtc.org // For changes in webrtc/common_video/video_frame_buffer
Review URL: https://webrtc-codereview.appspot.com/49459004
Cr-Commit-Position: refs/heads/master@{#8923}
With this cl, video buffers are now allocated using direct buffers.
These buffers are guaranteed to live as long as the capturer is running.
We can now post frames in c++ from the Java thread to the c++ worker thread and let c++ post the buffers back when it has finished
processing them.
This cl also reverts back to make Stop asynchronouse so that it is guaranteed that the c++ worker thread is not used and no frames are delivered to VideoCapturerAndroid after Stop completes.
BUG=4318
TESTED= On a N5, N6, N9 and Samsung device.
R=glaznev@webrtc.org, magjed@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/43369004
Cr-Commit-Position: refs/heads/master@{#8493}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8493 4adac7df-926f-26a2-2b94-8c16560cd09d
