src/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     const VideoCaptureDevice::Name& device_name) {
  18   for (int n = 0; n < number_of_devices_; ++n) {
  19     std::string possible_id = base::StringPrintf("/dev/video%d", n);
  20     if (device_name.id().compare(possible_id) == 0)
  21       return scoped_ptr<VideoCaptureDevice>(new FakeVideoCaptureDevice());
  22   }
  23   return scoped_ptr<VideoCaptureDevice>();
  24 }
  25
  26 void FakeVideoCaptureDeviceFactory::GetDeviceNames(
  27     VideoCaptureDevice::Names* const device_names) {
  28   DCHECK(device_names->empty());
  29   for (int n = 0; n < number_of_devices_; ++n) {
  30     VideoCaptureDevice::Name name(base::StringPrintf("fake_device_%d", n),
  31                                   base::StringPrintf("/dev/video%d", n));
  32     device_names->push_back(name);
  33   }
  34 }
  35
  36 void FakeVideoCaptureDeviceFactory::GetDeviceSupportedFormats(
  37     const VideoCaptureDevice::Name& device,
  38     VideoCaptureFormats* supported_formats) {
  39   const int frame_rate = 1000 / FakeVideoCaptureDevice::kFakeCaptureTimeoutMs;
  40   const gfx::Size supported_sizes[] = {gfx::Size(320, 240),
  41                                        gfx::Size(640, 480),
  42                                        gfx::Size(1280, 720)};
  43   supported_formats->clear();
  44   for (size_t i = 0; i < arraysize(supported_sizes); ++i) {
  45     supported_formats->push_back(VideoCaptureFormat(supported_sizes[i],
  46                                                     frame_rate,
  47                                                     media::PIXEL_FORMAT_I420));
  48   }
  49 }
  50
  51 }  // namespace media