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/*
* 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,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* 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 "talk/app/webrtc/java/jni/surfacetexturehelper_jni.h"
#include "third_party/libyuv/include/libyuv/convert.h"
#include "webrtc/base/bind.h"
namespace webrtc_jni {
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);
return 0;
}
AndroidVideoCapturerJni::AndroidVideoCapturerJni(
JNIEnv* jni,
jobject j_video_capturer,
jobject j_surface_texture_helper)
: j_video_capturer_(jni, j_video_capturer),
j_video_capturer_class_(
jni, FindClass(jni, "org/webrtc/VideoCapturerAndroid")),
j_observer_class_(
jni,
FindClass(jni,
"org/webrtc/VideoCapturerAndroid$NativeObserver")),
surface_texture_helper_(new rtc::RefCountedObject<SurfaceTextureHelper>(
jni, j_surface_texture_helper)),
capturer_(nullptr) {
LOG(LS_INFO) << "AndroidVideoCapturerJni ctor";
thread_checker_.DetachFromThread();
}
AndroidVideoCapturerJni::~AndroidVideoCapturerJni() {
LOG(LS_INFO) << "AndroidVideoCapturerJni dtor";
jni()->CallVoidMethod(
*j_video_capturer_,
GetMethodID(jni(), *j_video_capturer_class_, "release", "()V"));
CHECK_EXCEPTION(jni()) << "error during VideoCapturerAndroid.release()";
}
void AndroidVideoCapturerJni::Start(int width, int height, int framerate,
webrtc::AndroidVideoCapturer* capturer) {
LOG(LS_INFO) << "AndroidVideoCapturerJni start";
RTC_DCHECK(thread_checker_.CalledOnValidThread());
{
rtc::CritScope cs(&capturer_lock_);
RTC_CHECK(capturer_ == nullptr);
RTC_CHECK(invoker_.get() == nullptr);
capturer_ = capturer;
invoker_.reset(new rtc::GuardedAsyncInvoker());
}
jobject j_frame_observer =
jni()->NewObject(*j_observer_class_,
GetMethodID(jni(), *j_observer_class_, "<init>", "(J)V"),
jlongFromPointer(this));
CHECK_EXCEPTION(jni()) << "error during NewObject";
jmethodID m = GetMethodID(
jni(), *j_video_capturer_class_, "startCapture",
"(IIILandroid/content/Context;"
"Lorg/webrtc/VideoCapturerAndroid$CapturerObserver;)V");
jni()->CallVoidMethod(*j_video_capturer_,
m, width, height,
framerate,
application_context_,
j_frame_observer);
CHECK_EXCEPTION(jni()) << "error during VideoCapturerAndroid.startCapture";
}
void AndroidVideoCapturerJni::Stop() {
LOG(LS_INFO) << "AndroidVideoCapturerJni stop";
RTC_DCHECK(thread_checker_.CalledOnValidThread());
{
rtc::CritScope cs(&capturer_lock_);
// Destroying |invoker_| will cancel all pending calls to |capturer_|.
invoker_ = nullptr;
capturer_ = nullptr;
}
jmethodID m = GetMethodID(jni(), *j_video_capturer_class_,
"stopCapture", "()V");
jni()->CallVoidMethod(*j_video_capturer_, m);
CHECK_EXCEPTION(jni()) << "error during VideoCapturerAndroid.stopCapture";
LOG(LS_INFO) << "AndroidVideoCapturerJni stop done";
}
template <typename... Args>
void AndroidVideoCapturerJni::AsyncCapturerInvoke(
const char* method_name,
void (webrtc::AndroidVideoCapturer::*method)(Args...),
typename Identity<Args>::type... args) {
rtc::CritScope cs(&capturer_lock_);
if (!invoker_) {
LOG(LS_WARNING) << method_name << "() called for closed capturer.";
return;
}
invoker_->AsyncInvoke<void>(rtc::Bind(method, capturer_, args...));
}
std::string AndroidVideoCapturerJni::GetSupportedFormats() {
jmethodID m =
GetMethodID(jni(), *j_video_capturer_class_,
"getSupportedFormatsAsJson", "()Ljava/lang/String;");
jstring j_json_caps =
(jstring) jni()->CallObjectMethod(*j_video_capturer_, m);
CHECK_EXCEPTION(jni()) << "error during supportedFormatsAsJson";
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::OnMemoryBufferFrame(void* video_frame,
int length,
int width,
int height,
int rotation,
int64_t timestamp_ns) {
const uint8_t* y_plane = static_cast<uint8_t*>(video_frame);
const uint8_t* vu_plane = y_plane + width * height;
rtc::scoped_refptr<webrtc::VideoFrameBuffer> buffer =
buffer_pool_.CreateBuffer(width, height);
libyuv::NV21ToI420(
y_plane, width,
vu_plane, width,
buffer->MutableData(webrtc::kYPlane), buffer->stride(webrtc::kYPlane),
buffer->MutableData(webrtc::kUPlane), buffer->stride(webrtc::kUPlane),
buffer->MutableData(webrtc::kVPlane), buffer->stride(webrtc::kVPlane),
width, height);
AsyncCapturerInvoke("OnIncomingFrame",
&webrtc::AndroidVideoCapturer::OnIncomingFrame,
buffer, rotation, timestamp_ns);
}
void AndroidVideoCapturerJni::OnTextureFrame(int width,
int height,
int rotation,
int64_t timestamp_ns,
const NativeHandleImpl& handle) {
rtc::scoped_refptr<webrtc::VideoFrameBuffer> buffer(
surface_texture_helper_->CreateTextureFrame(width, height, handle));
AsyncCapturerInvoke("OnIncomingFrame",
&webrtc::AndroidVideoCapturer::OnIncomingFrame,
buffer, rotation, timestamp_ns);
}
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 timestamp) {
jboolean is_copy = true;
jbyte* bytes = jni->GetByteArrayElements(j_frame, &is_copy);
reinterpret_cast<AndroidVideoCapturerJni*>(j_capturer)
->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,
jint j_rotation, jlong j_timestamp) {
reinterpret_cast<AndroidVideoCapturerJni*>(j_capturer)
->OnTextureFrame(j_width, j_height, j_rotation, 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, jobject j_surface_texture_helper) {
rtc::scoped_refptr<webrtc::AndroidVideoCapturerDelegate> delegate =
new rtc::RefCountedObject<AndroidVideoCapturerJni>(
jni, j_video_capturer, j_surface_texture_helper);
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
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