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Side by Side Diff: talk/app/webrtc/java/jni/surfacetexturehelper_jni.h

Issue 1610243002: Move talk/app/webrtc to webrtc/api (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Removed processing of api.gyp for Chromium builds Created 4 years, 10 months ago
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1 /*
2 * libjingle
3 * Copyright 2015 Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 */
28
29 #ifndef TALK_APP_WEBRTC_JAVA_JNI_SURFACETEXTUREHELPER_JNI_H_
30 #define TALK_APP_WEBRTC_JAVA_JNI_SURFACETEXTUREHELPER_JNI_H_
31
32 #include <jni.h>
33
34 #include "talk/app/webrtc/java/jni/jni_helpers.h"
35 #include "talk/app/webrtc/java/jni/native_handle_impl.h"
36 #include "webrtc/base/refcount.h"
37 #include "webrtc/base/scoped_ref_ptr.h"
38 #include "webrtc/common_video/include/video_frame_buffer.h"
39
40 namespace webrtc_jni {
41
42 // Helper class to create and synchronize access to an Android SurfaceTexture.
43 // It is used for creating webrtc::VideoFrameBuffers from a SurfaceTexture when
44 // the SurfaceTexture has been updated.
45 // When the VideoFrameBuffer is released, this class returns the buffer to the
46 // java SurfaceTextureHelper so it can be updated safely. The VideoFrameBuffer
47 // can be released on an arbitrary thread.
48 // SurfaceTextureHelper is reference counted to make sure that it is not
49 // destroyed while a VideoFrameBuffer is in use.
50 // This class is the C++ counterpart of the java class SurfaceTextureHelper.
51 // Usage:
52 // 1. Create an java instance of SurfaceTextureHelper.
53 // 2. Create an instance of this class.
54 // 3. Register a listener to the Java SurfaceListener and start producing
55 // new buffers.
56 // 4. Call CreateTextureFrame to wrap the Java texture in a VideoFrameBuffer.
57 class SurfaceTextureHelper : public rtc::RefCountInterface {
58 public:
59 SurfaceTextureHelper(JNIEnv* jni, jobject surface_texture_helper);
60
61 rtc::scoped_refptr<webrtc::VideoFrameBuffer> CreateTextureFrame(
62 int width,
63 int height,
64 const NativeHandleImpl& native_handle);
65
66 protected:
67 ~SurfaceTextureHelper();
68
69 private:
70 // May be called on arbitrary thread.
71 void ReturnTextureFrame() const;
72
73 const ScopedGlobalRef<jobject> j_surface_texture_helper_;
74 const jmethodID j_return_texture_method_;
75 };
76
77 } // namespace webrtc_jni
78
79 #endif // TALK_APP_WEBRTC_JAVA_JNI_SURFACETEXTUREHELPER_JNI_H_
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