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// Copyright 2014 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_factory.h"
#include "base/command_line.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "media/base/media_switches.h"
#include "media/video/capture/fake_video_capture_device.h"
namespace media {
FakeVideoCaptureDeviceFactory::FakeVideoCaptureDeviceFactory()
: number_of_devices_(1) {
}
scoped_ptr<VideoCaptureDevice> FakeVideoCaptureDeviceFactory::Create(
const VideoCaptureDevice::Name& device_name) {
DCHECK(thread_checker_.CalledOnValidThread());
const std::string option = base::CommandLine::ForCurrentProcess()->
GetSwitchValueASCII(switches::kUseFakeDeviceForMediaStream);
FakeVideoCaptureDevice::FakeVideoCaptureDeviceType fake_vcd_type;
if (option.empty())
fake_vcd_type = FakeVideoCaptureDevice::USING_OWN_BUFFERS;
else if (base:: strcasecmp(option.c_str(), "triplanar") == 0)
fake_vcd_type = FakeVideoCaptureDevice::USING_OWN_BUFFERS_TRIPLANAR;
else if (base:: strcasecmp(option.c_str(), "gpu") == 0)
fake_vcd_type = FakeVideoCaptureDevice::USING_CLIENT_BUFFERS_GPU;
else
fake_vcd_type = FakeVideoCaptureDevice::USING_CLIENT_BUFFERS_I420;
for (int n = 0; n < number_of_devices_; ++n) {
std::string possible_id = base::StringPrintf("/dev/video%d", n);
if (device_name.id().compare(possible_id) == 0) {
return scoped_ptr<VideoCaptureDevice>(
new FakeVideoCaptureDevice(fake_vcd_type));
}
}
return scoped_ptr<VideoCaptureDevice>();
}
void FakeVideoCaptureDeviceFactory::GetDeviceNames(
VideoCaptureDevice::Names* const device_names) {
DCHECK(thread_checker_.CalledOnValidThread());
DCHECK(device_names->empty());
for (int n = 0; n < number_of_devices_; ++n) {
VideoCaptureDevice::Name name(base::StringPrintf("fake_device_%d", n),
base::StringPrintf("/dev/video%d", n)
#if defined(OS_LINUX)
, VideoCaptureDevice::Name::V4L2_SINGLE_PLANE
#elif defined(OS_MACOSX)
, VideoCaptureDevice::Name::AVFOUNDATION
#elif defined(OS_WIN)
, VideoCaptureDevice::Name::DIRECT_SHOW
#elif defined(OS_ANDROID)
, VideoCaptureDevice::Name::API2_LEGACY
#endif
);
device_names->push_back(name);
}
}
void FakeVideoCaptureDeviceFactory::GetDeviceSupportedFormats(
const VideoCaptureDevice::Name& device,
VideoCaptureFormats* supported_formats) {
DCHECK(thread_checker_.CalledOnValidThread());
const int frame_rate = 1000 / FakeVideoCaptureDevice::FakeCapturePeriodMs();
const gfx::Size supported_sizes[] = {gfx::Size(320, 240),
gfx::Size(640, 480),
gfx::Size(1280, 720),
gfx::Size(1920, 1080)};
supported_formats->clear();
for (const auto& size : supported_sizes) {
supported_formats->push_back(
VideoCaptureFormat(size, frame_rate, media::PIXEL_FORMAT_I420));
}
}
} // namespace media
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