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Unified Diff: media/capture/video/fake_video_capture_device_factory.cc

Issue 2447233002: FakeVideoCaptureDevice: Y16 testing support. (Closed)
Patch Set: Created 4 years, 2 months ago
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Index: media/capture/video/fake_video_capture_device_factory.cc
diff --git a/media/capture/video/fake_video_capture_device_factory.cc b/media/capture/video/fake_video_capture_device_factory.cc
index 38ef6054ecb237593f6ec916050fb036b80aa2b0..1db858fea94aa1813e0e63c012212d38894b297f 100644
--- a/media/capture/video/fake_video_capture_device_factory.cc
+++ b/media/capture/video/fake_video_capture_device_factory.cc
@@ -13,6 +13,16 @@
#include "build/build_config.h"
#include "media/base/media_switches.h"
+namespace {
+
+media::VideoPixelFormat get_pixelformat(const std::string& device_id) {
+ if (device_id == "/dev/video1")
+ return media::PIXEL_FORMAT_Y16;
+ return media::PIXEL_FORMAT_I420;
mcasas 2016/10/25 22:13:12 Suggestion: send the device index (|n| in l.49 me
aleksandar.stojiljkovic 2016/10/25 23:20:40 Changed the name but kept the parameter - the reas
mcasas 2016/10/26 02:03:15 I meant calling the function with the parameter |n
aleksandar.stojiljkovic 2016/10/26 14:46:00 Sorry, my previous explanation was wrong. l.53/l.9
+}
+
+}
+
namespace media {
// Cap the frame rate command line input to reasonable values.
@@ -20,7 +30,11 @@ static const float kFakeCaptureMinFrameRate = 5.0f;
static const float kFakeCaptureMaxFrameRate = 60.0f;
// Default rate if none is specified as part of the command line.
static const float kFakeCaptureDefaultFrameRate = 20.0f;
+// Cap the device count command line input to reasonable values.
+static const int kFakeCaptureMinDeviceCount = 1;
+static const int kFakeCaptureMaxDeviceCount = 10;
+// Factory has two devices by default; I420 and Y16. See also get_pixelformat().
FakeVideoCaptureDeviceFactory::FakeVideoCaptureDeviceFactory()
: number_of_devices_(1),
fake_vcd_ownership_(FakeVideoCaptureDevice::BufferOwnership::OWN_BUFFERS),
@@ -35,8 +49,8 @@ std::unique_ptr<VideoCaptureDevice> FakeVideoCaptureDeviceFactory::CreateDevice(
for (int n = 0; n < number_of_devices_; ++n) {
std::string possible_id = base::StringPrintf("/dev/video%d", n);
if (device_descriptor.device_id.compare(possible_id) == 0) {
- return std::unique_ptr<VideoCaptureDevice>(
- new FakeVideoCaptureDevice(fake_vcd_ownership_, frame_rate_));
+ return std::unique_ptr<VideoCaptureDevice>(new FakeVideoCaptureDevice(
+ fake_vcd_ownership_, frame_rate_, get_pixelformat(possible_id)));
}
}
return std::unique_ptr<VideoCaptureDevice>();
@@ -46,6 +60,9 @@ void FakeVideoCaptureDeviceFactory::GetDeviceDescriptors(
VideoCaptureDeviceDescriptors* device_descriptors) {
DCHECK(thread_checker_.CalledOnValidThread());
DCHECK(device_descriptors->empty());
+
+ parse_command_line();
+
for (int n = 0; n < number_of_devices_; ++n) {
device_descriptors->emplace_back(base::StringPrintf("fake_device_%d", n),
base::StringPrintf("/dev/video%d", n),
@@ -66,21 +83,25 @@ void FakeVideoCaptureDeviceFactory::GetSupportedFormats(
const VideoCaptureDeviceDescriptor& device_descriptor,
VideoCaptureFormats* supported_formats) {
DCHECK(thread_checker_.CalledOnValidThread());
- const gfx::Size supported_sizes[] = {gfx::Size(320, 240),
+ const gfx::Size supported_sizes[] = {gfx::Size(96, 96), // To test cubemap.
+ 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));
+ supported_formats->push_back(VideoCaptureFormat(
+ size, frame_rate_, get_pixelformat(device_descriptor.device_id)));
}
}
// Optional comma delimited parameters to the command line can specify buffer
-// ownership, buffer planarity, and the fake video device FPS.
-// Examples: "ownership=client, planarity=triplanar, fps=60" "fps=30"
+// ownership, device count, and the fake video devices FPS.
+// Examples: "ownership=client, device-count=2, fps=60" "fps=30"
void FakeVideoCaptureDeviceFactory::parse_command_line() {
+ if (command_line_parsed_)
+ return;
+ command_line_parsed_ = true;
const std::string option =
base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
switches::kUseFakeDeviceForMediaStream);
@@ -109,6 +130,15 @@ void FakeVideoCaptureDeviceFactory::parse_command_line() {
std::max(kFakeCaptureMinFrameRate, static_cast<float>(fps));
frame_rate_ = std::min(kFakeCaptureMaxFrameRate, frame_rate_);
}
+ } else if (base::EqualsCaseInsensitiveASCII(param.front(),
+ "device-count")) {
+ unsigned count = 0;
mcasas 2016/10/25 22:13:12 unsigned int? I think it's uncommon to see just |u
aleksandar.stojiljkovic 2016/10/25 23:20:40 Done.
+ if (base::StringToUint(param.back(), &count)) {
+ number_of_devices_ =
+ std::min(kFakeCaptureMaxDeviceCount, static_cast<int>(count));
+ number_of_devices_ = std::max(kFakeCaptureMinDeviceCount,
+ static_cast<int>(number_of_devices_));
mcasas 2016/10/25 22:13:12 One line less if we do: number_of_devices_ =
aleksandar.stojiljkovic 2016/10/25 23:20:40 Done.
+ }
}
}
}

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