Revert of Remove the old AndroidVideoCapturer stack code.

webrtc/api/androidvideocapturer.cc

+/*
+ *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/api/androidvideocapturer.h"
+
+#include <memory>
+
+#include "webrtc/api/android/jni/native_handle_impl.h"
+#include "webrtc/base/common.h"
+#include "webrtc/base/timeutils.h"
+#include "webrtc/media/engine/webrtcvideoframe.h"
+
+namespace webrtc {
+
+AndroidVideoCapturer::AndroidVideoCapturer(
+    const rtc::scoped_refptr<AndroidVideoCapturerDelegate>& delegate)
+    : running_(false),
+      delegate_(delegate) {
+  thread_checker_.DetachFromThread();
+  SetSupportedFormats(delegate_->GetSupportedFormats());
+}
+
+AndroidVideoCapturer::~AndroidVideoCapturer() {
+  RTC_CHECK(!running_);
+}
+
+cricket::CaptureState AndroidVideoCapturer::Start(
+    const cricket::VideoFormat& capture_format) {
+  RTC_CHECK(thread_checker_.CalledOnValidThread());
+  RTC_CHECK(!running_);
+  const int fps = cricket::VideoFormat::IntervalToFps(capture_format.interval);
+  LOG(LS_INFO) << " AndroidVideoCapturer::Start " << capture_format.width << "x"
+               << capture_format.height << "@" << fps;
+
+  running_ = true;
+  delegate_->Start(capture_format.width, capture_format.height, fps, this);
+  SetCaptureFormat(&capture_format);
+  return cricket::CS_STARTING;
+}
+
+void AndroidVideoCapturer::Stop() {
+  LOG(LS_INFO) << " AndroidVideoCapturer::Stop ";
+  RTC_CHECK(thread_checker_.CalledOnValidThread());
+  RTC_CHECK(running_);
+  running_ = false;
+  SetCaptureFormat(NULL);
+
+  delegate_->Stop();
+  SetCaptureState(cricket::CS_STOPPED);
+}
+
+bool AndroidVideoCapturer::IsRunning() {
+  RTC_CHECK(thread_checker_.CalledOnValidThread());
+  return running_;
+}
+
+bool AndroidVideoCapturer::GetPreferredFourccs(std::vector<uint32_t>* fourccs) {
+  RTC_CHECK(thread_checker_.CalledOnValidThread());
+  fourccs->push_back(cricket::FOURCC_YV12);
+  return true;
+}
+
+void AndroidVideoCapturer::OnCapturerStarted(bool success) {
+  RTC_CHECK(thread_checker_.CalledOnValidThread());
+  const cricket::CaptureState new_state =
+      success ? cricket::CS_RUNNING : cricket::CS_FAILED;
+  SetCaptureState(new_state);
+}
+
+void AndroidVideoCapturer::OnOutputFormatRequest(
+    int width, int height, int fps) {
+  RTC_CHECK(thread_checker_.CalledOnValidThread());
+  cricket::VideoFormat format(width, height,
+                              cricket::VideoFormat::FpsToInterval(fps), 0);
+  video_adapter()->OnOutputFormatRequest(format);
+}
+
+bool AndroidVideoCapturer::GetBestCaptureFormat(
+    const cricket::VideoFormat& desired,
+    cricket::VideoFormat* best_format) {
+  // Delegate this choice to VideoCapturer.startCapture().
+  *best_format = desired;
+  return true;
+}
+
+}  // namespace webrtc