| Message ID | 20200629151411.216477-7-paul.elder@ideasonboard.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series |
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| Related | show |
Hi Paul, Thank you for the patch. On Tue, Jun 30, 2020 at 12:14:11AM +0900, Paul Elder wrote: > Now that calculation of bytes per line, image size, and conversions to > and from v4l2 and drm formats have been moved into libcamera core, > removed them from V4L2CameraProxy. This has a positive side-effect of > cleaning up the code. > > Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> > --- > src/v4l2/v4l2_camera_proxy.cpp | 167 +++++++-------------------------- > src/v4l2/v4l2_camera_proxy.h | 7 -- > 2 files changed, 36 insertions(+), 138 deletions(-) > > diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp > index c246570..0869797 100644 > --- a/src/v4l2/v4l2_camera_proxy.cpp > +++ b/src/v4l2/v4l2_camera_proxy.cpp > @@ -20,6 +20,7 @@ > #include <libcamera/formats.h> > #include <libcamera/object.h> > > +#include "libcamera/internal/formats.h" > #include "libcamera/internal/log.h" > #include "libcamera/internal/utils.h" > > @@ -164,22 +165,21 @@ bool V4L2CameraProxy::validateMemoryType(uint32_t memory) > > void V4L2CameraProxy::setFmtFromConfig(StreamConfiguration &streamConfig) > { > - curV4L2Format_.fmt.pix.width = streamConfig.size.width; > - curV4L2Format_.fmt.pix.height = streamConfig.size.height; > - curV4L2Format_.fmt.pix.pixelformat = drmToV4L2(streamConfig.pixelFormat); > - curV4L2Format_.fmt.pix.field = V4L2_FIELD_NONE; > - curV4L2Format_.fmt.pix.bytesperline = > - bplMultiplier(curV4L2Format_.fmt.pix.pixelformat) * > - curV4L2Format_.fmt.pix.width; > - curV4L2Format_.fmt.pix.sizeimage = > - imageSize(curV4L2Format_.fmt.pix.pixelformat, > - curV4L2Format_.fmt.pix.width, > - curV4L2Format_.fmt.pix.height); > - curV4L2Format_.fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; > - curV4L2Format_.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; > - curV4L2Format_.fmt.pix.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; > + PixelFormatInfo formatInfo = PixelFormatInfo::info(streamConfig.pixelFormat); This should be a const reference. Same for other locations below. I would delete the copy constructor and assignement operators for PixelFormatInfo, but that will mess up initialization of the static map :-S > + unsigned int width = streamConfig.size.width; > + unsigned int height = streamConfig.size.height; > + > + curV4L2Format_.fmt.pix.width = width; > + curV4L2Format_.fmt.pix.height = height; > + curV4L2Format_.fmt.pix.pixelformat = formatInfo.v4l2Format; > + curV4L2Format_.fmt.pix.field = V4L2_FIELD_NONE; > + curV4L2Format_.fmt.pix.bytesperline = formatInfo.bytesPerLine(width); > + curV4L2Format_.fmt.pix.sizeimage = formatInfo.imageSize(width, height); > + curV4L2Format_.fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; > + curV4L2Format_.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; > + curV4L2Format_.fmt.pix.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; > curV4L2Format_.fmt.pix.quantization = V4L2_QUANTIZATION_DEFAULT; > - curV4L2Format_.fmt.pix.xfer_func = V4L2_XFER_FUNC_DEFAULT; > + curV4L2Format_.fmt.pix.xfer_func = V4L2_XFER_FUNC_DEFAULT; > } > > unsigned int V4L2CameraProxy::calculateSizeImage(StreamConfiguration &streamConfig) > @@ -188,9 +188,11 @@ unsigned int V4L2CameraProxy::calculateSizeImage(StreamConfiguration &streamConf > * \todo Merge this method with setFmtFromConfig (need imageSize to > * support all libcamera formats first, or filter out MJPEG for now). > */ > - return imageSize(drmToV4L2(streamConfig.pixelFormat), > - streamConfig.size.width, > - streamConfig.size.height); > + PixelFormatInfo formatInfo = PixelFormatInfo::info(streamConfig.pixelFormat); > + unsigned int width = streamConfig.size.width; > + unsigned int height = streamConfig.size.height; > + > + return formatInfo.imageSize(width, height); In this case I would skip the local width and height variables. I wonder if PixelFormatInfo::imageSize(unsigned int width, unsigned int height) shouldn't become PixelFormatInfo::imageSize(const Size &size), so you could write return formatInfo.imageSize(streamConfig.size); > } > > void V4L2CameraProxy::querycap(std::shared_ptr<Camera> camera) > @@ -253,12 +255,13 @@ int V4L2CameraProxy::vidioc_enum_framesizes(V4L2CameraFile *file, struct v4l2_fr > { > LOG(V4L2Compat, Debug) << "Servicing vidioc_enum_framesizes fd = " << file->efd(); > > - PixelFormat argFormat = v4l2ToDrm(arg->pixel_format); > + V4L2PixelFormat v4l2Format = V4L2PixelFormat(arg->pixel_format); > + PixelFormat format = PixelFormatInfo::info(v4l2Format).format; > /* > * \todo This might need to be expanded as few pipeline handlers > * report StreamFormats. > */ > - const std::vector<Size> &frameSizes = streamConfig_.formats().sizes(argFormat); > + const std::vector<Size> &frameSizes = streamConfig_.formats().sizes(format); > > if (arg->index >= frameSizes.size()) > return -EINVAL; > @@ -284,7 +287,8 @@ int V4L2CameraProxy::vidioc_enum_fmt(V4L2CameraFile *file, struct v4l2_fmtdesc * > /* \todo Add map from format to description. */ > utils::strlcpy(reinterpret_cast<char *>(arg->description), > "Video Format Description", sizeof(arg->description)); > - arg->pixelformat = drmToV4L2(streamConfig_.formats().pixelformats()[arg->index]); > + arg->pixelformat = > + PixelFormatInfo::info(streamConfig_.formats().pixelformats()[arg->index]).v4l2Format; A local PixelFormat variable could make this more readable. > > memset(arg->reserved, 0, sizeof(arg->reserved)); > > @@ -306,7 +310,8 @@ int V4L2CameraProxy::vidioc_g_fmt(V4L2CameraFile *file, struct v4l2_format *arg) > > void V4L2CameraProxy::tryFormat(struct v4l2_format *arg) > { > - PixelFormat format = v4l2ToDrm(arg->fmt.pix.pixelformat); > + V4L2PixelFormat v4l2Format = V4L2PixelFormat(arg->fmt.pix.pixelformat); > + PixelFormat format = PixelFormatInfo::info(v4l2Format).format; > const std::vector<PixelFormat> &formats = > streamConfig_.formats().pixelformats(); > if (std::find(formats.begin(), formats.end(), format) == formats.end()) > @@ -317,15 +322,14 @@ void V4L2CameraProxy::tryFormat(struct v4l2_format *arg) > if (std::find(sizes.begin(), sizes.end(), size) == sizes.end()) > size = streamConfig_.formats().sizes(format)[0]; > > + PixelFormatInfo formatInfo = PixelFormatInfo::info(format); > + > arg->fmt.pix.width = size.width; > arg->fmt.pix.height = size.height; > - arg->fmt.pix.pixelformat = drmToV4L2(format); > + arg->fmt.pix.pixelformat = formatInfo.v4l2Format; > arg->fmt.pix.field = V4L2_FIELD_NONE; > - arg->fmt.pix.bytesperline = bplMultiplier(drmToV4L2(format)) * > - arg->fmt.pix.width; > - arg->fmt.pix.sizeimage = imageSize(drmToV4L2(format), > - arg->fmt.pix.width, > - arg->fmt.pix.height); > + arg->fmt.pix.bytesperline = formatInfo.bytesPerLine(size.width); > + arg->fmt.pix.sizeimage = formatInfo.imageSize(size.width, size.height); > arg->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; > arg->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; > arg->fmt.pix.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; > @@ -350,8 +354,9 @@ int V4L2CameraProxy::vidioc_s_fmt(V4L2CameraFile *file, struct v4l2_format *arg) > tryFormat(arg); > > Size size(arg->fmt.pix.width, arg->fmt.pix.height); > + V4L2PixelFormat v4l2Format = V4L2PixelFormat(arg->fmt.pix.pixelformat); > ret = vcam_->configure(&streamConfig_, size, > - v4l2ToDrm(arg->fmt.pix.pixelformat), > + PixelFormatInfo::info(v4l2Format).format, > bufferCount_); > if (ret < 0) > return -EINVAL; > @@ -495,8 +500,9 @@ int V4L2CameraProxy::vidioc_reqbufs(V4L2CameraFile *file, struct v4l2_requestbuf > freeBuffers(); > > Size size(curV4L2Format_.fmt.pix.width, curV4L2Format_.fmt.pix.height); > + V4L2PixelFormat v4l2Format = V4L2PixelFormat(curV4L2Format_.fmt.pix.pixelformat); > int ret = vcam_->configure(&streamConfig_, size, > - v4l2ToDrm(curV4L2Format_.fmt.pix.pixelformat), > + PixelFormatInfo::info(v4l2Format).format, > arg->count); > if (ret < 0) > return -EINVAL; > @@ -835,104 +841,3 @@ void V4L2CameraProxy::release(V4L2CameraFile *file) > > owner_ = nullptr; > } > - > -struct PixelFormatPlaneInfo { > - unsigned int bitsPerPixel; > - unsigned int hSubSampling; > - unsigned int vSubSampling; > -}; > - > -struct PixelFormatInfo { > - PixelFormat format; > - uint32_t v4l2Format; > - unsigned int numPlanes; > - std::array<PixelFormatPlaneInfo, 3> planes; > -}; > - > -namespace { > - > -static const std::array<PixelFormatInfo, 16> pixelFormatInfo = {{ > - /* RGB formats. */ > - { formats::RGB888, V4L2_PIX_FMT_BGR24, 1, {{ { 24, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, > - { formats::BGR888, V4L2_PIX_FMT_RGB24, 1, {{ { 24, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, > - { formats::BGRA8888, V4L2_PIX_FMT_ARGB32, 1, {{ { 32, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, > - /* YUV packed formats. */ > - { formats::UYVY, V4L2_PIX_FMT_UYVY, 1, {{ { 16, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, > - { formats::VYUY, V4L2_PIX_FMT_VYUY, 1, {{ { 16, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, > - { formats::YUYV, V4L2_PIX_FMT_YUYV, 1, {{ { 16, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, > - { formats::YVYU, V4L2_PIX_FMT_YVYU, 1, {{ { 16, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, > - /* YUY planar formats. */ > - { formats::NV12, V4L2_PIX_FMT_NV12, 2, {{ { 8, 1, 1 }, { 16, 2, 2 }, { 0, 0, 0 } }} }, > - { formats::NV21, V4L2_PIX_FMT_NV21, 2, {{ { 8, 1, 1 }, { 16, 2, 2 }, { 0, 0, 0 } }} }, > - { formats::NV16, V4L2_PIX_FMT_NV16, 2, {{ { 8, 1, 1 }, { 16, 2, 1 }, { 0, 0, 0 } }} }, > - { formats::NV61, V4L2_PIX_FMT_NV61, 2, {{ { 8, 1, 1 }, { 16, 2, 1 }, { 0, 0, 0 } }} }, > - { formats::NV24, V4L2_PIX_FMT_NV24, 2, {{ { 8, 1, 1 }, { 16, 1, 1 }, { 0, 0, 0 } }} }, > - { formats::NV42, V4L2_PIX_FMT_NV42, 2, {{ { 8, 1, 1 }, { 16, 1, 1 }, { 0, 0, 0 } }} }, > - { formats::YUV420, V4L2_PIX_FMT_YUV420, 3, {{ { 8, 1, 1 }, { 8, 2, 2 }, { 8, 2, 2 } }} }, > - { formats::YUV422, V4L2_PIX_FMT_YUV422P, 3, {{ { 8, 1, 1 }, { 8, 2, 1 }, { 8, 2, 1 } }} }, > - /* Compressed formats. */ > - /* > - * \todo Get a better image size estimate for MJPEG, via > - * StreamConfiguration, instead of using the worst-case > - * width * height * bpp of uncompressed data. > - */ > - { formats::MJPEG, V4L2_PIX_FMT_MJPEG, 1, {{ { 16, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, > -}}; > - > -} /* namespace */ > - > -/* \todo make libcamera export these */ > -unsigned int V4L2CameraProxy::bplMultiplier(uint32_t format) > -{ > - auto info = std::find_if(pixelFormatInfo.begin(), pixelFormatInfo.end(), > - [format](const PixelFormatInfo &info) { > - return info.v4l2Format == format; > - }); > - if (info == pixelFormatInfo.end()) > - return 0; > - > - return info->planes[0].bitsPerPixel / 8; > -} > - > -unsigned int V4L2CameraProxy::imageSize(uint32_t format, unsigned int width, > - unsigned int height) > -{ > - auto info = std::find_if(pixelFormatInfo.begin(), pixelFormatInfo.end(), > - [format](const PixelFormatInfo &info) { > - return info.v4l2Format == format; > - }); > - if (info == pixelFormatInfo.end()) > - return 0; > - > - unsigned int multiplier = 0; > - for (unsigned int i = 0; i < info->numPlanes; ++i) > - multiplier += info->planes[i].bitsPerPixel > - / info->planes[i].hSubSampling > - / info->planes[i].vSubSampling; > - > - return width * height * multiplier / 8; > -} > - > -PixelFormat V4L2CameraProxy::v4l2ToDrm(uint32_t format) > -{ > - auto info = std::find_if(pixelFormatInfo.begin(), pixelFormatInfo.end(), > - [format](const PixelFormatInfo &info) { > - return info.v4l2Format == format; > - }); > - if (info == pixelFormatInfo.end()) > - return PixelFormat(); > - > - return info->format; > -} > - > -uint32_t V4L2CameraProxy::drmToV4L2(const PixelFormat &format) > -{ > - auto info = std::find_if(pixelFormatInfo.begin(), pixelFormatInfo.end(), > - [format](const PixelFormatInfo &info) { > - return info.format == format; > - }); > - if (info == pixelFormatInfo.end()) > - return format; > - > - return info->v4l2Format; > -} > diff --git a/src/v4l2/v4l2_camera_proxy.h b/src/v4l2/v4l2_camera_proxy.h > index d78a472..49184a1 100644 > --- a/src/v4l2/v4l2_camera_proxy.h > +++ b/src/v4l2/v4l2_camera_proxy.h > @@ -69,13 +69,6 @@ private: > int acquire(V4L2CameraFile *file); > void release(V4L2CameraFile *file); > > - static unsigned int bplMultiplier(uint32_t format); > - static unsigned int imageSize(uint32_t format, unsigned int width, > - unsigned int height); > - > - static PixelFormat v4l2ToDrm(uint32_t format); > - static uint32_t drmToV4L2(const PixelFormat &format); > - > static const std::set<unsigned long> supportedIoctls_; > > unsigned int refcount_;
diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp index c246570..0869797 100644 --- a/src/v4l2/v4l2_camera_proxy.cpp +++ b/src/v4l2/v4l2_camera_proxy.cpp @@ -20,6 +20,7 @@ #include <libcamera/formats.h> #include <libcamera/object.h> +#include "libcamera/internal/formats.h" #include "libcamera/internal/log.h" #include "libcamera/internal/utils.h" @@ -164,22 +165,21 @@ bool V4L2CameraProxy::validateMemoryType(uint32_t memory) void V4L2CameraProxy::setFmtFromConfig(StreamConfiguration &streamConfig) { - curV4L2Format_.fmt.pix.width = streamConfig.size.width; - curV4L2Format_.fmt.pix.height = streamConfig.size.height; - curV4L2Format_.fmt.pix.pixelformat = drmToV4L2(streamConfig.pixelFormat); - curV4L2Format_.fmt.pix.field = V4L2_FIELD_NONE; - curV4L2Format_.fmt.pix.bytesperline = - bplMultiplier(curV4L2Format_.fmt.pix.pixelformat) * - curV4L2Format_.fmt.pix.width; - curV4L2Format_.fmt.pix.sizeimage = - imageSize(curV4L2Format_.fmt.pix.pixelformat, - curV4L2Format_.fmt.pix.width, - curV4L2Format_.fmt.pix.height); - curV4L2Format_.fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; - curV4L2Format_.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; - curV4L2Format_.fmt.pix.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; + PixelFormatInfo formatInfo = PixelFormatInfo::info(streamConfig.pixelFormat); + unsigned int width = streamConfig.size.width; + unsigned int height = streamConfig.size.height; + + curV4L2Format_.fmt.pix.width = width; + curV4L2Format_.fmt.pix.height = height; + curV4L2Format_.fmt.pix.pixelformat = formatInfo.v4l2Format; + curV4L2Format_.fmt.pix.field = V4L2_FIELD_NONE; + curV4L2Format_.fmt.pix.bytesperline = formatInfo.bytesPerLine(width); + curV4L2Format_.fmt.pix.sizeimage = formatInfo.imageSize(width, height); + curV4L2Format_.fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; + curV4L2Format_.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; + curV4L2Format_.fmt.pix.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; curV4L2Format_.fmt.pix.quantization = V4L2_QUANTIZATION_DEFAULT; - curV4L2Format_.fmt.pix.xfer_func = V4L2_XFER_FUNC_DEFAULT; + curV4L2Format_.fmt.pix.xfer_func = V4L2_XFER_FUNC_DEFAULT; } unsigned int V4L2CameraProxy::calculateSizeImage(StreamConfiguration &streamConfig) @@ -188,9 +188,11 @@ unsigned int V4L2CameraProxy::calculateSizeImage(StreamConfiguration &streamConf * \todo Merge this method with setFmtFromConfig (need imageSize to * support all libcamera formats first, or filter out MJPEG for now). */ - return imageSize(drmToV4L2(streamConfig.pixelFormat), - streamConfig.size.width, - streamConfig.size.height); + PixelFormatInfo formatInfo = PixelFormatInfo::info(streamConfig.pixelFormat); + unsigned int width = streamConfig.size.width; + unsigned int height = streamConfig.size.height; + + return formatInfo.imageSize(width, height); } void V4L2CameraProxy::querycap(std::shared_ptr<Camera> camera) @@ -253,12 +255,13 @@ int V4L2CameraProxy::vidioc_enum_framesizes(V4L2CameraFile *file, struct v4l2_fr { LOG(V4L2Compat, Debug) << "Servicing vidioc_enum_framesizes fd = " << file->efd(); - PixelFormat argFormat = v4l2ToDrm(arg->pixel_format); + V4L2PixelFormat v4l2Format = V4L2PixelFormat(arg->pixel_format); + PixelFormat format = PixelFormatInfo::info(v4l2Format).format; /* * \todo This might need to be expanded as few pipeline handlers * report StreamFormats. */ - const std::vector<Size> &frameSizes = streamConfig_.formats().sizes(argFormat); + const std::vector<Size> &frameSizes = streamConfig_.formats().sizes(format); if (arg->index >= frameSizes.size()) return -EINVAL; @@ -284,7 +287,8 @@ int V4L2CameraProxy::vidioc_enum_fmt(V4L2CameraFile *file, struct v4l2_fmtdesc * /* \todo Add map from format to description. */ utils::strlcpy(reinterpret_cast<char *>(arg->description), "Video Format Description", sizeof(arg->description)); - arg->pixelformat = drmToV4L2(streamConfig_.formats().pixelformats()[arg->index]); + arg->pixelformat = + PixelFormatInfo::info(streamConfig_.formats().pixelformats()[arg->index]).v4l2Format; memset(arg->reserved, 0, sizeof(arg->reserved)); @@ -306,7 +310,8 @@ int V4L2CameraProxy::vidioc_g_fmt(V4L2CameraFile *file, struct v4l2_format *arg) void V4L2CameraProxy::tryFormat(struct v4l2_format *arg) { - PixelFormat format = v4l2ToDrm(arg->fmt.pix.pixelformat); + V4L2PixelFormat v4l2Format = V4L2PixelFormat(arg->fmt.pix.pixelformat); + PixelFormat format = PixelFormatInfo::info(v4l2Format).format; const std::vector<PixelFormat> &formats = streamConfig_.formats().pixelformats(); if (std::find(formats.begin(), formats.end(), format) == formats.end()) @@ -317,15 +322,14 @@ void V4L2CameraProxy::tryFormat(struct v4l2_format *arg) if (std::find(sizes.begin(), sizes.end(), size) == sizes.end()) size = streamConfig_.formats().sizes(format)[0]; + PixelFormatInfo formatInfo = PixelFormatInfo::info(format); + arg->fmt.pix.width = size.width; arg->fmt.pix.height = size.height; - arg->fmt.pix.pixelformat = drmToV4L2(format); + arg->fmt.pix.pixelformat = formatInfo.v4l2Format; arg->fmt.pix.field = V4L2_FIELD_NONE; - arg->fmt.pix.bytesperline = bplMultiplier(drmToV4L2(format)) * - arg->fmt.pix.width; - arg->fmt.pix.sizeimage = imageSize(drmToV4L2(format), - arg->fmt.pix.width, - arg->fmt.pix.height); + arg->fmt.pix.bytesperline = formatInfo.bytesPerLine(size.width); + arg->fmt.pix.sizeimage = formatInfo.imageSize(size.width, size.height); arg->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; arg->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; arg->fmt.pix.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; @@ -350,8 +354,9 @@ int V4L2CameraProxy::vidioc_s_fmt(V4L2CameraFile *file, struct v4l2_format *arg) tryFormat(arg); Size size(arg->fmt.pix.width, arg->fmt.pix.height); + V4L2PixelFormat v4l2Format = V4L2PixelFormat(arg->fmt.pix.pixelformat); ret = vcam_->configure(&streamConfig_, size, - v4l2ToDrm(arg->fmt.pix.pixelformat), + PixelFormatInfo::info(v4l2Format).format, bufferCount_); if (ret < 0) return -EINVAL; @@ -495,8 +500,9 @@ int V4L2CameraProxy::vidioc_reqbufs(V4L2CameraFile *file, struct v4l2_requestbuf freeBuffers(); Size size(curV4L2Format_.fmt.pix.width, curV4L2Format_.fmt.pix.height); + V4L2PixelFormat v4l2Format = V4L2PixelFormat(curV4L2Format_.fmt.pix.pixelformat); int ret = vcam_->configure(&streamConfig_, size, - v4l2ToDrm(curV4L2Format_.fmt.pix.pixelformat), + PixelFormatInfo::info(v4l2Format).format, arg->count); if (ret < 0) return -EINVAL; @@ -835,104 +841,3 @@ void V4L2CameraProxy::release(V4L2CameraFile *file) owner_ = nullptr; } - -struct PixelFormatPlaneInfo { - unsigned int bitsPerPixel; - unsigned int hSubSampling; - unsigned int vSubSampling; -}; - -struct PixelFormatInfo { - PixelFormat format; - uint32_t v4l2Format; - unsigned int numPlanes; - std::array<PixelFormatPlaneInfo, 3> planes; -}; - -namespace { - -static const std::array<PixelFormatInfo, 16> pixelFormatInfo = {{ - /* RGB formats. */ - { formats::RGB888, V4L2_PIX_FMT_BGR24, 1, {{ { 24, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, - { formats::BGR888, V4L2_PIX_FMT_RGB24, 1, {{ { 24, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, - { formats::BGRA8888, V4L2_PIX_FMT_ARGB32, 1, {{ { 32, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, - /* YUV packed formats. */ - { formats::UYVY, V4L2_PIX_FMT_UYVY, 1, {{ { 16, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, - { formats::VYUY, V4L2_PIX_FMT_VYUY, 1, {{ { 16, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, - { formats::YUYV, V4L2_PIX_FMT_YUYV, 1, {{ { 16, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, - { formats::YVYU, V4L2_PIX_FMT_YVYU, 1, {{ { 16, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, - /* YUY planar formats. */ - { formats::NV12, V4L2_PIX_FMT_NV12, 2, {{ { 8, 1, 1 }, { 16, 2, 2 }, { 0, 0, 0 } }} }, - { formats::NV21, V4L2_PIX_FMT_NV21, 2, {{ { 8, 1, 1 }, { 16, 2, 2 }, { 0, 0, 0 } }} }, - { formats::NV16, V4L2_PIX_FMT_NV16, 2, {{ { 8, 1, 1 }, { 16, 2, 1 }, { 0, 0, 0 } }} }, - { formats::NV61, V4L2_PIX_FMT_NV61, 2, {{ { 8, 1, 1 }, { 16, 2, 1 }, { 0, 0, 0 } }} }, - { formats::NV24, V4L2_PIX_FMT_NV24, 2, {{ { 8, 1, 1 }, { 16, 1, 1 }, { 0, 0, 0 } }} }, - { formats::NV42, V4L2_PIX_FMT_NV42, 2, {{ { 8, 1, 1 }, { 16, 1, 1 }, { 0, 0, 0 } }} }, - { formats::YUV420, V4L2_PIX_FMT_YUV420, 3, {{ { 8, 1, 1 }, { 8, 2, 2 }, { 8, 2, 2 } }} }, - { formats::YUV422, V4L2_PIX_FMT_YUV422P, 3, {{ { 8, 1, 1 }, { 8, 2, 1 }, { 8, 2, 1 } }} }, - /* Compressed formats. */ - /* - * \todo Get a better image size estimate for MJPEG, via - * StreamConfiguration, instead of using the worst-case - * width * height * bpp of uncompressed data. - */ - { formats::MJPEG, V4L2_PIX_FMT_MJPEG, 1, {{ { 16, 1, 1 }, { 0, 0, 0 }, { 0, 0, 0 } }} }, -}}; - -} /* namespace */ - -/* \todo make libcamera export these */ -unsigned int V4L2CameraProxy::bplMultiplier(uint32_t format) -{ - auto info = std::find_if(pixelFormatInfo.begin(), pixelFormatInfo.end(), - [format](const PixelFormatInfo &info) { - return info.v4l2Format == format; - }); - if (info == pixelFormatInfo.end()) - return 0; - - return info->planes[0].bitsPerPixel / 8; -} - -unsigned int V4L2CameraProxy::imageSize(uint32_t format, unsigned int width, - unsigned int height) -{ - auto info = std::find_if(pixelFormatInfo.begin(), pixelFormatInfo.end(), - [format](const PixelFormatInfo &info) { - return info.v4l2Format == format; - }); - if (info == pixelFormatInfo.end()) - return 0; - - unsigned int multiplier = 0; - for (unsigned int i = 0; i < info->numPlanes; ++i) - multiplier += info->planes[i].bitsPerPixel - / info->planes[i].hSubSampling - / info->planes[i].vSubSampling; - - return width * height * multiplier / 8; -} - -PixelFormat V4L2CameraProxy::v4l2ToDrm(uint32_t format) -{ - auto info = std::find_if(pixelFormatInfo.begin(), pixelFormatInfo.end(), - [format](const PixelFormatInfo &info) { - return info.v4l2Format == format; - }); - if (info == pixelFormatInfo.end()) - return PixelFormat(); - - return info->format; -} - -uint32_t V4L2CameraProxy::drmToV4L2(const PixelFormat &format) -{ - auto info = std::find_if(pixelFormatInfo.begin(), pixelFormatInfo.end(), - [format](const PixelFormatInfo &info) { - return info.format == format; - }); - if (info == pixelFormatInfo.end()) - return format; - - return info->v4l2Format; -} diff --git a/src/v4l2/v4l2_camera_proxy.h b/src/v4l2/v4l2_camera_proxy.h index d78a472..49184a1 100644 --- a/src/v4l2/v4l2_camera_proxy.h +++ b/src/v4l2/v4l2_camera_proxy.h @@ -69,13 +69,6 @@ private: int acquire(V4L2CameraFile *file); void release(V4L2CameraFile *file); - static unsigned int bplMultiplier(uint32_t format); - static unsigned int imageSize(uint32_t format, unsigned int width, - unsigned int height); - - static PixelFormat v4l2ToDrm(uint32_t format); - static uint32_t drmToV4L2(const PixelFormat &format); - static const std::set<unsigned long> supportedIoctls_; unsigned int refcount_;
Now that calculation of bytes per line, image size, and conversions to and from v4l2 and drm formats have been moved into libcamera core, removed them from V4L2CameraProxy. This has a positive side-effect of cleaning up the code. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> --- src/v4l2/v4l2_camera_proxy.cpp | 167 +++++++-------------------------- src/v4l2/v4l2_camera_proxy.h | 7 -- 2 files changed, 36 insertions(+), 138 deletions(-)