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-rw-r--r--src/libcamera/pipeline/raspberrypi/raspberrypi.cpp40
1 files changed, 40 insertions, 0 deletions
diff --git a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp
index 9c171cea..b5c687da 100644
--- a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp
+++ b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp
@@ -96,6 +96,7 @@ V4L2DeviceFormat toV4L2DeviceFormat(const V4L2SubdeviceFormat &format,
deviceFormat.fourcc = V4L2PixelFormat::fromPixelFormat(pix);
deviceFormat.size = format.size;
+ deviceFormat.colorSpace = format.colorSpace;
return deviceFormat;
}
@@ -132,6 +133,7 @@ V4L2SubdeviceFormat findBestFormat(const SensorFormats &formatsMap, const Size &
{
double bestScore = std::numeric_limits<double>::max(), score;
V4L2SubdeviceFormat bestFormat;
+ bestFormat.colorSpace = ColorSpace::Raw;
constexpr float penaltyAr = 1500.0;
constexpr float penaltyBitDepth = 500.0;
@@ -329,6 +331,8 @@ CameraConfiguration::Status RPiCameraConfiguration::validate()
if (config_.empty())
return Invalid;
+ status = validateColorSpaces(ColorSpaceFlag::StreamsShareColorSpace);
+
/*
* What if the platform has a non-90 degree rotation? We can't even
* "adjust" the configuration and carry on. Alternatively, raising an
@@ -496,11 +500,25 @@ CameraConfiguration::Status RPiCameraConfiguration::validate()
V4L2DeviceFormat format;
format.fourcc = V4L2PixelFormat::fromPixelFormat(cfg.pixelFormat);
format.size = cfg.size;
+ format.colorSpace = cfg.colorSpace;
+
+ LOG(RPI, Debug)
+ << "Try color space " << ColorSpace::toString(cfg.colorSpace);
int ret = dev->tryFormat(&format);
if (ret)
return Invalid;
+ if (cfg.colorSpace != format.colorSpace) {
+ status = Adjusted;
+ LOG(RPI, Debug)
+ << "Color space changed from "
+ << ColorSpace::toString(cfg.colorSpace) << " to "
+ << ColorSpace::toString(format.colorSpace);
+ }
+
+ cfg.colorSpace = format.colorSpace;
+
cfg.stride = format.planes[0].bpl;
cfg.frameSize = format.planes[0].size;
@@ -524,6 +542,7 @@ CameraConfiguration *PipelineHandlerRPi::generateConfiguration(Camera *camera,
PixelFormat pixelFormat;
V4L2VideoDevice::Formats fmts;
Size size;
+ std::optional<ColorSpace> colorSpace;
if (roles.empty())
return config;
@@ -539,6 +558,7 @@ CameraConfiguration *PipelineHandlerRPi::generateConfiguration(Camera *camera,
pixelFormat = mbusCodeToPixelFormat(sensorFormat.mbus_code,
BayerFormat::Packing::CSI2);
ASSERT(pixelFormat.isValid());
+ colorSpace = ColorSpace::Raw;
bufferCount = 2;
rawCount++;
break;
@@ -546,6 +566,12 @@ CameraConfiguration *PipelineHandlerRPi::generateConfiguration(Camera *camera,
case StreamRole::StillCapture:
fmts = data->isp_[Isp::Output0].dev()->formats();
pixelFormat = formats::NV12;
+ /*
+ * Still image codecs usually expect the JPEG color space.
+ * Even RGB codecs will be fine as the RGB we get with the
+ * JPEG color space is the same as sRGB.
+ */
+ colorSpace = ColorSpace::Jpeg;
/* Return the largest sensor resolution. */
size = sensorSize;
bufferCount = 1;
@@ -563,6 +589,11 @@ CameraConfiguration *PipelineHandlerRPi::generateConfiguration(Camera *camera,
*/
fmts = data->isp_[Isp::Output0].dev()->formats();
pixelFormat = formats::YUV420;
+ /*
+ * Choose a color space appropriate for video recording.
+ * Rec.709 will be a good default for HD resolutions.
+ */
+ colorSpace = ColorSpace::Rec709;
size = { 1920, 1080 };
bufferCount = 4;
outCount++;
@@ -571,6 +602,7 @@ CameraConfiguration *PipelineHandlerRPi::generateConfiguration(Camera *camera,
case StreamRole::Viewfinder:
fmts = data->isp_[Isp::Output0].dev()->formats();
pixelFormat = formats::ARGB8888;
+ colorSpace = ColorSpace::Jpeg;
size = { 800, 600 };
bufferCount = 4;
outCount++;
@@ -617,6 +649,7 @@ CameraConfiguration *PipelineHandlerRPi::generateConfiguration(Camera *camera,
StreamConfiguration cfg(formats);
cfg.size = size;
cfg.pixelFormat = pixelFormat;
+ cfg.colorSpace = colorSpace;
cfg.bufferCount = bufferCount;
config->addConfiguration(cfg);
}
@@ -724,6 +757,7 @@ int PipelineHandlerRPi::configure(Camera *camera, CameraConfiguration *config)
V4L2PixelFormat fourcc = V4L2PixelFormat::fromPixelFormat(cfg.pixelFormat);
format.size = cfg.size;
format.fourcc = fourcc;
+ format.colorSpace = cfg.colorSpace;
LOG(RPI, Debug) << "Setting " << stream->name() << " to "
<< format.toString();
@@ -739,6 +773,10 @@ int PipelineHandlerRPi::configure(Camera *camera, CameraConfiguration *config)
return -EINVAL;
}
+ LOG(RPI, Debug)
+ << "Stream " << stream->name() << " has color space "
+ << ColorSpace::toString(cfg.colorSpace);
+
cfg.setStream(stream);
stream->setExternal(true);
@@ -763,6 +801,8 @@ int PipelineHandlerRPi::configure(Camera *camera, CameraConfiguration *config)
format = {};
format.size = maxSize;
format.fourcc = V4L2PixelFormat::fromPixelFormat(formats::YUV420);
+ /* No one asked for output, so the color space doesn't matter. */
+ format.colorSpace = ColorSpace::Jpeg;
ret = data->isp_[Isp::Output0].dev()->setFormat(&format);
if (ret) {
LOG(RPI, Error)