Native changes for VideoCapturerAndroid surface texture support

talk/app/webrtc/java/jni/androidvideocapturer_jni.cc

 /*
  * libjingle
  * Copyright 2015 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 10 matching lines @@
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
 
 #include "talk/app/webrtc/java/jni/androidvideocapturer_jni.h"
 #include "talk/app/webrtc/java/jni/classreferenceholder.h"
+#include "talk/app/webrtc/java/jni/native_handle_impl.h"
 #include "webrtc/base/bind.h"
 #include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
 
 namespace webrtc_jni {
 
+namespace {
+
+class CameraTextureBuffer : public webrtc::NativeHandleBuffer {
+ public:
+  CameraTextureBuffer(int width, int height,
+      const NativeHandleImpl& native_handle,
+      const rtc::Callback0<void>& no_longer_used)
+      : webrtc::NativeHandleBuffer(&native_handle_, width, height),
+        native_handle_(native_handle),
+        no_longer_used_cb_(no_longer_used) {}
+
+  ~CameraTextureBuffer() {
+    no_longer_used_cb_();
+  }
+
+  rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() override {
+    RTC_NOTREACHED()
+        << "CameraTextureBuffer::NativeToI420Buffer not implemented.";
+    return nullptr;
+  }
+
+ private:
+  NativeHandleImpl native_handle_;
+  rtc::Callback0<void> no_longer_used_cb_;
+};
+
+}  // anonymous namespace
+
 jobject AndroidVideoCapturerJni::application_context_ = nullptr;
 
 // static
 int AndroidVideoCapturerJni::SetAndroidObjects(JNIEnv* jni,
                                                jobject appliction_context) {
   if (application_context_) {
     jni->DeleteGlobalRef(application_context_);
   }
   application_context_ = NewGlobalRef(jni, appliction_context);
 
@@ skipping 97 matching lines @@
   return JavaToStdString(jni(), j_json_caps);
 }
 
 void AndroidVideoCapturerJni::OnCapturerStarted(bool success) {
   LOG(LS_INFO) << "AndroidVideoCapturerJni capture started: " << success;
   AsyncCapturerInvoke("OnCapturerStarted",
                       &webrtc::AndroidVideoCapturer::OnCapturerStarted,
                       success);
 }
 
-void AndroidVideoCapturerJni::OnIncomingFrame(void* video_frame,
-                                              int length,
-                                              int width,
-                                              int height,
-                                              int rotation,
-                                              int64_t time_stamp) {
+void AndroidVideoCapturerJni::OnMemoryBufferFrame(void* video_frame,
+                                                  int length,
+                                                  int width,
+                                                  int height,
+                                                  int rotation,
+                                                  int64_t timestamp) {

[magjed_webrtc, 2015/10/08 13:15:36]

Can you add unit as suffix to timestamp variable name?

   const uint8_t* y_plane = static_cast<uint8_t*>(video_frame);
   // Android guarantees that the stride is a multiple of 16.
   // http://developer.android.com/reference/android/hardware/Camera.Parameters.html#setPreviewFormat%28int%29
   int y_stride;
   int uv_stride;
   webrtc::Calc16ByteAlignedStride(width, &y_stride, &uv_stride);
   const uint8_t* v_plane = y_plane + y_stride * height;
   const uint8_t* u_plane =
       v_plane + uv_stride * webrtc::AlignInt(height, 2) / 2;
 
   // Wrap the Java buffer, and call ReturnBuffer() in the wrapped
   // VideoFrameBuffer destructor.
   rtc::scoped_refptr<webrtc::VideoFrameBuffer> buffer(
       new rtc::RefCountedObject<webrtc::WrappedI420Buffer>(
           width, height, y_plane, y_stride, u_plane, uv_stride, v_plane,
           uv_stride,
-          rtc::Bind(&AndroidVideoCapturerJni::ReturnBuffer, this, time_stamp)));
+          rtc::Bind(&AndroidVideoCapturerJni::ReturnBuffer, this, timestamp)));
   AsyncCapturerInvoke("OnIncomingFrame",
                       &webrtc::AndroidVideoCapturer::OnIncomingFrame,
-                      buffer, rotation, time_stamp);
+                      buffer, rotation, timestamp);
+}
+
+void AndroidVideoCapturerJni::OnTextureFrame(int width,
+                                             int height,
+                                             int64_t timestamp,
+                                             const NativeHandleImpl& handle) {
+  rtc::scoped_refptr<webrtc::VideoFrameBuffer> buffer(
+      new rtc::RefCountedObject<CameraTextureBuffer>(
+          width, height, handle,
+          rtc::Bind(&AndroidVideoCapturerJni::ReturnBuffer, this,
+                    timestamp)));
+  AsyncCapturerInvoke("OnIncomingFrame",
+                      &webrtc::AndroidVideoCapturer::OnIncomingFrame,
+                      buffer, 0, timestamp);
 }
 
 void AndroidVideoCapturerJni::OnOutputFormatRequest(int width,
                                                     int height,
                                                     int fps) {
   AsyncCapturerInvoke("OnOutputFormatRequest",
                       &webrtc::AndroidVideoCapturer::OnOutputFormatRequest,
                       width, height, fps);
 }
 
 JNIEnv* AndroidVideoCapturerJni::jni() { return AttachCurrentThreadIfNeeded(); }
 
 JOW(void,
     VideoCapturerAndroid_00024NativeObserver_nativeOnByteBufferFrameCaptured)
     (JNIEnv* jni, jclass, jlong j_capturer, jbyteArray j_frame, jint length,
-        jint width, jint height, jint rotation, jlong ts) {
+        jint width, jint height, jint rotation, jlong timestamp) {
   jboolean is_copy = true;
   jbyte* bytes = jni->GetByteArrayElements(j_frame, &is_copy);
   // If this is a copy of the original frame, it means that the memory
   // is not direct memory and thus VideoCapturerAndroid does not guarantee
   // that the memory is valid when we have released |j_frame|.
   // TODO(magjed): Move ReleaseByteArrayElements() into ReturnBuffer() and
   // remove this check.
   RTC_CHECK(!is_copy)
       << "NativeObserver_nativeOnFrameCaptured: frame is a copy";
   reinterpret_cast<AndroidVideoCapturerJni*>(j_capturer)
-      ->OnIncomingFrame(bytes, length, width, height, rotation, ts);
+      ->OnMemoryBufferFrame(bytes, length, width, height, rotation, timestamp);
   jni->ReleaseByteArrayElements(j_frame, bytes, JNI_ABORT);
 }
 
+JOW(void, VideoCapturerAndroid_00024NativeObserver_nativeOnTextureFrameCaptured)
+    (JNIEnv* jni, jclass, jlong j_capturer, jint j_width, jint j_height,
+        jint j_oes_texture_id, jfloatArray j_transform_matrix,
+        jlong j_timestamp) {
+   reinterpret_cast<AndroidVideoCapturerJni*>(j_capturer)
+         ->OnTextureFrame(j_width, j_height, j_timestamp,
+                          NativeHandleImpl(jni, j_oes_texture_id,
+                                           j_transform_matrix));
+}
+
 JOW(void, VideoCapturerAndroid_00024NativeObserver_nativeCapturerStarted)
     (JNIEnv* jni, jclass, jlong j_capturer, jboolean j_success) {
   LOG(LS_INFO) << "NativeObserver_nativeCapturerStarted";
   reinterpret_cast<AndroidVideoCapturerJni*>(j_capturer)->OnCapturerStarted(
       j_success);
 }
 
 JOW(void, VideoCapturerAndroid_00024NativeObserver_nativeOnOutputFormatRequest)
     (JNIEnv* jni, jclass, jlong j_capturer, jint j_width, jint j_height,
         jint j_fps) {
   LOG(LS_INFO) << "NativeObserver_nativeOnOutputFormatRequest";
   reinterpret_cast<AndroidVideoCapturerJni*>(j_capturer)->OnOutputFormatRequest(
       j_width, j_height, j_fps);
 }
 
 JOW(jlong, VideoCapturerAndroid_nativeCreateVideoCapturer)
     (JNIEnv* jni, jclass, jobject j_video_capturer) {
   rtc::scoped_refptr<webrtc::AndroidVideoCapturerDelegate> delegate =
       new rtc::RefCountedObject<AndroidVideoCapturerJni>(jni, j_video_capturer);
   rtc::scoped_ptr<cricket::VideoCapturer> capturer(
       new webrtc::AndroidVideoCapturer(delegate));
   // Caller takes ownership of the cricket::VideoCapturer* pointer.
   return jlongFromPointer(capturer.release());
 }
 
 }  // namespace webrtc_jni