media/video/capture/fake_video_capture_device_factory.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "media/video/capture/fake_video_capture_device_factory.h"
   6
   7 #include "base/strings/stringprintf.h"
   8 #include "media/video/capture/fake_video_capture_device.h"
   9
  10 namespace media {
  11
  12 FakeVideoCaptureDeviceFactory::FakeVideoCaptureDeviceFactory()
  13     : number_of_devices_(1) {
  14 }
  15
  16 scoped_ptr<VideoCaptureDevice> FakeVideoCaptureDeviceFactory::Create(
  17     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
  18     const VideoCaptureDevice::Name& device_name) {
  19   for (int n = 0; n < number_of_devices_; ++n) {
  20     std::string possible_id = base::StringPrintf("/dev/video%d", n);
  21     if (device_name.id().compare(possible_id) == 0)
  22       return scoped_ptr<VideoCaptureDevice>(new FakeVideoCaptureDevice());
  23   }
  24   return scoped_ptr<VideoCaptureDevice>();
  25 }
  26
  27 void FakeVideoCaptureDeviceFactory::GetDeviceNames(
  28     VideoCaptureDevice::Names* const device_names) {
  29   DCHECK(device_names->empty());
  30   for (int n = 0; n < number_of_devices_; ++n) {
  31     VideoCaptureDevice::Name name(base::StringPrintf("fake_device_%d", n),
  32                                   base::StringPrintf("/dev/video%d", n));
  33     device_names->push_back(name);
  34   }
  35 }
  36
  37 void FakeVideoCaptureDeviceFactory::GetDeviceSupportedFormats(
  38     const VideoCaptureDevice::Name& device,
  39     VideoCaptureFormats* supported_formats) {
  40   const int frame_rate = 1000 / FakeVideoCaptureDevice::kFakeCaptureTimeoutMs;
  41   const gfx::Size supported_sizes[] = {gfx::Size(320, 240),
  42                                        gfx::Size(640, 480),
  43                                        gfx::Size(1280, 720)};
  44   supported_formats->clear();
  45   for (size_t i = 0; i < arraysize(supported_sizes); ++i) {
  46     supported_formats->push_back(VideoCaptureFormat(supported_sizes[i],
  47                                                     frame_rate,
  48                                                     media::PIXEL_FORMAT_I420));
  49   }
  50 }
  51
  52 }  // namespace media