0dc2316e8b
This CL changes the interface by adding a SurfaceTextureHelper argument to VideoCapturer.startCapture(). This removes the need for the VideoCapturer to create the SurfaceTextureHelper itself. This also means that it is no longer necessary to send an EGLContext to the VideoCapturerAndroid.create() function. The SurfaceTextureHelper is now created in AndroidVideoCapturerJni, and the EGLContext is passed from PeerConnectionFactory in nativeCreateVideoSource(). Another change in this CL is that the C++ SurfaceTextureHelper creates the Java SurfaceTextureHelper instead of getting it passed as an argument in the ctor. BUG=webrtc:5519 Review URL: https://codereview.webrtc.org/1783793002 Cr-Commit-Position: refs/heads/master@{#11977}
64 lines
2.3 KiB
C++
64 lines
2.3 KiB
C++
/*
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* Copyright 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_API_JAVA_JNI_SURFACETEXTUREHELPER_JNI_H_
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#define WEBRTC_API_JAVA_JNI_SURFACETEXTUREHELPER_JNI_H_
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#include <jni.h>
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#include "webrtc/api/java/jni/jni_helpers.h"
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#include "webrtc/api/java/jni/native_handle_impl.h"
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#include "webrtc/base/refcount.h"
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#include "webrtc/base/scoped_ref_ptr.h"
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#include "webrtc/common_video/include/video_frame_buffer.h"
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namespace webrtc_jni {
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// Helper class to create and synchronize access to an Android SurfaceTexture.
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// It is used for creating webrtc::VideoFrameBuffers from a SurfaceTexture when
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// the SurfaceTexture has been updated.
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// When the VideoFrameBuffer is released, this class returns the buffer to the
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// java SurfaceTextureHelper so it can be updated safely. The VideoFrameBuffer
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// can be released on an arbitrary thread.
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// SurfaceTextureHelper is reference counted to make sure that it is not
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// destroyed while a VideoFrameBuffer is in use.
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// This class is the C++ counterpart of the java class SurfaceTextureHelper.
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// Usage:
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// 1. Create an instance of this class.
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// 2. Get the Java SurfaceTextureHelper with GetJavaSurfaceTextureHelper().
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// 3. Register a listener to the Java SurfaceListener and start producing
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// new buffers.
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// 4. Call CreateTextureFrame to wrap the Java texture in a VideoFrameBuffer.
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class SurfaceTextureHelper : public rtc::RefCountInterface {
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public:
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SurfaceTextureHelper(JNIEnv* jni, jobject j_egl_context);
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jobject GetJavaSurfaceTextureHelper() const;
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rtc::scoped_refptr<webrtc::VideoFrameBuffer> CreateTextureFrame(
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int width,
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int height,
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const NativeHandleImpl& native_handle);
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protected:
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~SurfaceTextureHelper();
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private:
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// May be called on arbitrary thread.
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void ReturnTextureFrame() const;
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const ScopedGlobalRef<jobject> j_surface_texture_helper_;
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const jmethodID j_return_texture_method_;
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};
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} // namespace webrtc_jni
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#endif // WEBRTC_API_JAVA_JNI_SURFACETEXTUREHELPER_JNI_H_
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