| OLD | NEW |
| (Empty) |
| 1 /* | |
| 2 * Copyright 2015 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #ifndef WEBRTC_API_JAVA_JNI_NATIVE_HANDLE_IMPL_H_ | |
| 12 #define WEBRTC_API_JAVA_JNI_NATIVE_HANDLE_IMPL_H_ | |
| 13 | |
| 14 #include <jni.h> | |
| 15 | |
| 16 #include "webrtc/common_video/include/video_frame_buffer.h" | |
| 17 #include "webrtc/common_video/rotation.h" | |
| 18 | |
| 19 namespace webrtc_jni { | |
| 20 | |
| 21 // Open gl texture matrix, in column-major order. Operations are | |
| 22 // in-place. | |
| 23 class Matrix { | |
| 24 public: | |
| 25 Matrix(JNIEnv* jni, jfloatArray a); | |
| 26 | |
| 27 jfloatArray ToJava(JNIEnv* jni); | |
| 28 | |
| 29 // Crop arguments are relative to original size. | |
| 30 void Crop(float cropped_width, | |
| 31 float cropped_height, | |
| 32 float crop_x, | |
| 33 float crop_y); | |
| 34 | |
| 35 void Rotate(webrtc::VideoRotation rotation); | |
| 36 | |
| 37 private: | |
| 38 static void Multiply(const float a[16], const float b[16], float result[16]); | |
| 39 float elem_[16]; | |
| 40 }; | |
| 41 | |
| 42 // Wrapper for texture object. | |
| 43 struct NativeHandleImpl { | |
| 44 NativeHandleImpl(JNIEnv* jni, | |
| 45 jint j_oes_texture_id, | |
| 46 jfloatArray j_transform_matrix); | |
| 47 | |
| 48 NativeHandleImpl(int id, const Matrix& matrix); | |
| 49 | |
| 50 const int oes_texture_id; | |
| 51 Matrix sampling_matrix; | |
| 52 }; | |
| 53 | |
| 54 class AndroidTextureBuffer : public webrtc::NativeHandleBuffer { | |
| 55 public: | |
| 56 AndroidTextureBuffer(int width, | |
| 57 int height, | |
| 58 const NativeHandleImpl& native_handle, | |
| 59 jobject surface_texture_helper, | |
| 60 const rtc::Callback0<void>& no_longer_used); | |
| 61 ~AndroidTextureBuffer(); | |
| 62 rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() override; | |
| 63 | |
| 64 // First crop, then scale to dst resolution, and then rotate. | |
| 65 rtc::scoped_refptr<AndroidTextureBuffer> CropScaleAndRotate( | |
| 66 int cropped_width, | |
| 67 int cropped_height, | |
| 68 int crop_x, | |
| 69 int crop_y, | |
| 70 int dst_width, | |
| 71 int dst_height, | |
| 72 webrtc::VideoRotation rotation); | |
| 73 | |
| 74 private: | |
| 75 NativeHandleImpl native_handle_; | |
| 76 // Raw object pointer, relying on the caller, i.e., | |
| 77 // AndroidVideoCapturerJni or the C++ SurfaceTextureHelper, to keep | |
| 78 // a global reference. TODO(nisse): Make this a reference to the C++ | |
| 79 // SurfaceTextureHelper instead, but that requires some refactoring | |
| 80 // of AndroidVideoCapturerJni. | |
| 81 jobject surface_texture_helper_; | |
| 82 rtc::Callback0<void> no_longer_used_cb_; | |
| 83 }; | |
| 84 | |
| 85 } // namespace webrtc_jni | |
| 86 | |
| 87 #endif // WEBRTC_API_JAVA_JNI_NATIVE_HANDLE_IMPL_H_ | |
| OLD | NEW |