Reland: Reorganize media::VideoCapture* types

media/video/capture/fake_video_capture_device.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/video/capture/fake_video_capture_device.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 19 matching lines @@
   for (int n = 0; n < kNumberOfFakeDevices; n++) {
     Name name(base::StringPrintf("fake_device_%d", n),
               base::StringPrintf("/dev/video%d", n));
     device_names->push_back(name);
   }
 }
 
 void FakeVideoCaptureDevice::GetDeviceSupportedFormats(
     const Name& device,
     VideoCaptureCapabilities* formats) {
-  VideoCaptureCapability capture_format;
-  capture_format.color = media::PIXEL_FORMAT_I420;
-  capture_format.width = 640;
-  capture_format.height = 480;
-  capture_format.frame_rate = 1000 / kFakeCaptureTimeoutMs;
-  formats->push_back(capture_format);
+  VideoCaptureCapability capture_format_640x480;
+  capture_format_640x480.supported_format.frame_size.SetSize(640, 480);
+  capture_format_640x480.supported_format.frame_rate =
+      1000 / kFakeCaptureTimeoutMs;
+  capture_format_640x480.supported_format.pixel_format =
+      media::PIXEL_FORMAT_I420;
+  formats->push_back(capture_format_640x480);
 }
 
 VideoCaptureDevice* FakeVideoCaptureDevice::Create(const Name& device_name) {
   if (fail_next_create_) {
     fail_next_create_ = false;
     return NULL;
   }
   for (int n = 0; n < kNumberOfFakeDevices; ++n) {
     std::string possible_id = base::StringPrintf("/dev/video%d", n);
     if (device_name.id().compare(possible_id) == 0) {
       return new FakeVideoCaptureDevice();
     }
   }
   return NULL;
 }
 
 void FakeVideoCaptureDevice::SetFailNextCreate() {
   fail_next_create_ = true;
 }
 
 FakeVideoCaptureDevice::FakeVideoCaptureDevice()
     : state_(kIdle),
       capture_thread_("CaptureThread"),
       frame_count_(0),
-      capabilities_roster_index_(0) {
-}
+      format_roster_index_(0) {}
 
 FakeVideoCaptureDevice::~FakeVideoCaptureDevice() {
   // Check if the thread is running.
   // This means that the device have not been DeAllocated properly.
   DCHECK(!capture_thread_.IsRunning());
 }
 
 void FakeVideoCaptureDevice::AllocateAndStart(
-    const VideoCaptureCapability& capture_format,
+    const VideoCaptureParams& params,
     scoped_ptr<VideoCaptureDevice::Client> client) {
-  capture_format_.frame_size_type = capture_format.frame_size_type;
-  if (capture_format.frame_size_type == VariableResolutionVideoCaptureDevice)
-    PopulateCapabilitiesRoster();
+  if (params.allow_resolution_change)
+    PopulateFormatRoster();
 
   if (state_ != kIdle) {
     return;  // Wrong state.
   }
 
   client_ = client.Pass();
-  capture_format_.color = PIXEL_FORMAT_I420;
-  if (capture_format.width > 320) {  // VGA
-    capture_format_.width = 640;
-    capture_format_.height = 480;
+  capture_format_.pixel_format = PIXEL_FORMAT_I420;
+  if (params.requested_format.frame_size.width() > 320) {  // VGA
+    capture_format_.frame_size.SetSize(640, 480);
     capture_format_.frame_rate = 30;
   } else {  // QVGA
-    capture_format_.width = 320;
-    capture_format_.height = 240;
+    capture_format_.frame_size.SetSize(320, 240);
     capture_format_.frame_rate = 30;
   }
 
-  const size_t fake_frame_size = VideoFrame::AllocationSize(
-      VideoFrame::I420,
-      gfx::Size(capture_format_.width, capture_format_.height));
+  const size_t fake_frame_size =
+      VideoFrame::AllocationSize(VideoFrame::I420, capture_format_.frame_size);
   fake_frame_.reset(new uint8[fake_frame_size]);
 
   state_ = kCapturing;
   capture_thread_.Start();
   capture_thread_.message_loop()->PostTask(
       FROM_HERE,
       base::Bind(&FakeVideoCaptureDevice::OnCaptureTask,
                  base::Unretained(this)));
 }
 
 void FakeVideoCaptureDevice::Reallocate() {
   DCHECK_EQ(state_, kCapturing);
-  capture_format_ = capabilities_roster_.at(++capabilities_roster_index_ %
-                                            capabilities_roster_.size());
-  DCHECK_EQ(capture_format_.color, PIXEL_FORMAT_I420);
-  DVLOG(3) << "Reallocating FakeVideoCaptureDevice, new capture resolution ("
-           << capture_format_.width << "x" << capture_format_.height << ")";
+  capture_format_ =
+      format_roster_.at(++format_roster_index_ % format_roster_.size());
+  DCHECK_EQ(capture_format_.pixel_format, PIXEL_FORMAT_I420);
+  DVLOG(3) << "Reallocating FakeVideoCaptureDevice, new capture resolution "
+           << capture_format_.frame_size.ToString();
 
-  const size_t fake_frame_size = VideoFrame::AllocationSize(
-      VideoFrame::I420,
-      gfx::Size(capture_format_.width, capture_format_.height));
+  const size_t fake_frame_size =
+      VideoFrame::AllocationSize(VideoFrame::I420, capture_format_.frame_size);
   fake_frame_.reset(new uint8[fake_frame_size]);
 }
 
 void FakeVideoCaptureDevice::StopAndDeAllocate() {
   if (state_ != kCapturing) {
     return;  // Wrong state.
   }
   capture_thread_.Stop();
   state_ = kIdle;
 }
 
 void FakeVideoCaptureDevice::OnCaptureTask() {
   if (state_ != kCapturing) {
     return;
   }
 
-  const size_t frame_size = VideoFrame::AllocationSize(
-      VideoFrame::I420,
-      gfx::Size(capture_format_.width, capture_format_.height));
+  const size_t frame_size =
+      VideoFrame::AllocationSize(VideoFrame::I420, capture_format_.frame_size);
   memset(fake_frame_.get(), 0, frame_size);
 
   SkBitmap bitmap;
   bitmap.setConfig(SkBitmap::kA8_Config,
-                   capture_format_.width,
-                   capture_format_.height,
-                   capture_format_.width);
-  bitmap.setPixels(fake_frame_.get());
+                   capture_format_.frame_size.width(),
+                   capture_format_.frame_size.height(),
+                   capture_format_.frame_size.width()),
+      bitmap.setPixels(fake_frame_.get());
 
   SkCanvas canvas(bitmap);
 
   // Draw a sweeping circle to show an animation.
-  int radius = std::min(capture_format_.width, capture_format_.height) / 4;
-  SkRect rect = SkRect::MakeXYWH(
-      capture_format_.width / 2 - radius, capture_format_.height / 2 - radius,
-      2 * radius, 2 * radius);
+  int radius = std::min(capture_format_.frame_size.width(),
+                        capture_format_.frame_size.height()) /
+               4;
+  SkRect rect =
+      SkRect::MakeXYWH(capture_format_.frame_size.width() / 2 - radius,
+                       capture_format_.frame_size.height() / 2 - radius,
+                       2 * radius,
+                       2 * radius);
 
   SkPaint paint;
   paint.setStyle(SkPaint::kFill_Style);
 
   // Only Y plane is being drawn and this gives 50% grey on the Y
   // plane. The result is a light green color in RGB space.
   paint.setAlpha(128);
 
   int end_angle = (frame_count_ % kFakeCaptureBeepCycle * 360) /
       kFakeCaptureBeepCycle;
@@ skipping 25 matching lines @@
 
   // Give the captured frame to the client.
   client_->OnIncomingCapturedFrame(fake_frame_.get(),
                                    frame_size,
                                    base::Time::Now(),
                                    0,
                                    false,
                                    false,
                                    capture_format_);
   if (!(frame_count_ % kFakeCaptureCapabilityChangePeriod) &&
-      (capture_format_.frame_size_type ==
-       VariableResolutionVideoCaptureDevice)) {
+      format_roster_.size() > 0U) {
     Reallocate();
   }
   // Reschedule next CaptureTask.
   capture_thread_.message_loop()->PostDelayedTask(
       FROM_HERE,
       base::Bind(&FakeVideoCaptureDevice::OnCaptureTask,
                  base::Unretained(this)),
       base::TimeDelta::FromMilliseconds(kFakeCaptureTimeoutMs));
 }
 
-void FakeVideoCaptureDevice::PopulateCapabilitiesRoster() {
-  capabilities_roster_.push_back(
-      media::VideoCaptureCapability(320,
-                                    240,
-                                    30,
-                                    PIXEL_FORMAT_I420,
-                                    VariableResolutionVideoCaptureDevice));
-  capabilities_roster_.push_back(
-      media::VideoCaptureCapability(640,
-                                    480,
-                                    30,
-                                    PIXEL_FORMAT_I420,
-                                    VariableResolutionVideoCaptureDevice));
-  capabilities_roster_.push_back(
-      media::VideoCaptureCapability(800,
-                                    600,
-                                    30,
-                                    PIXEL_FORMAT_I420,
-                                    VariableResolutionVideoCaptureDevice));
+void FakeVideoCaptureDevice::PopulateFormatRoster() {
+  format_roster_.push_back(
+      media::VideoCaptureFormat(gfx::Size(320, 240), 30, PIXEL_FORMAT_I420));
+  format_roster_.push_back(
+      media::VideoCaptureFormat(gfx::Size(640, 480), 30, PIXEL_FORMAT_I420));
+  format_roster_.push_back(
+      media::VideoCaptureFormat(gfx::Size(800, 600), 30, PIXEL_FORMAT_I420));
 
-  capabilities_roster_index_ = 0;
+  format_roster_index_ = 0;
 }
 
 }  // namespace media