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-rw-r--r--src/v4l2/v4l2_camera_proxy.cpp192
-rw-r--r--src/v4l2/v4l2_camera_proxy.h8
2 files changed, 32 insertions, 168 deletions
diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp
index c2465701..8c55a060 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"
@@ -70,7 +71,6 @@ int V4L2CameraProxy::open(V4L2CameraFile *file)
vcam_->getStreamConfig(&streamConfig_);
setFmtFromConfig(streamConfig_);
- sizeimage_ = calculateSizeImage(streamConfig_);
files_.insert(file);
@@ -164,33 +164,22 @@ 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;
+ const PixelFormatInfo &info = PixelFormatInfo::info(streamConfig.pixelFormat);
+ Size size = streamConfig.size;
+
+ curV4L2Format_.fmt.pix.width = size.width;
+ curV4L2Format_.fmt.pix.height = size.height;
+ curV4L2Format_.fmt.pix.pixelformat = info.v4l2Format;
+ curV4L2Format_.fmt.pix.field = V4L2_FIELD_NONE;
+ curV4L2Format_.fmt.pix.bytesperline = streamConfig.stride;
+ curV4L2Format_.fmt.pix.sizeimage = streamConfig.frameSize;
+ 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)
-{
- /*
- * \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);
+ sizeimage_ = streamConfig.frameSize;
}
void V4L2CameraProxy::querycap(std::shared_ptr<Camera> camera)
@@ -253,12 +242,13 @@ 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;
@@ -279,12 +269,14 @@ int V4L2CameraProxy::vidioc_enum_fmt(V4L2CameraFile *file, struct v4l2_fmtdesc *
arg->index >= streamConfig_.formats().pixelformats().size())
return -EINVAL;
+ PixelFormat format = streamConfig_.formats().pixelformats()[arg->index];
+
/* \todo Set V4L2_FMT_FLAG_COMPRESSED for compressed formats. */
arg->flags = 0;
/* \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(format).v4l2Format;
memset(arg->reserved, 0, sizeof(arg->reserved));
@@ -306,7 +298,8 @@ 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 +310,14 @@ void V4L2CameraProxy::tryFormat(struct v4l2_format *arg)
if (std::find(sizes.begin(), sizes.end(), size) == sizes.end())
size = streamConfig_.formats().sizes(format)[0];
+ const 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.stride(size.width, 0);
+ arg->fmt.pix.sizeimage = formatInfo.frameSize(size);
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;
@@ -350,18 +342,13 @@ 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;
- unsigned int sizeimage = calculateSizeImage(streamConfig_);
- if (sizeimage == 0)
- return -EINVAL;
-
- sizeimage_ = sizeimage;
-
setFmtFromConfig(streamConfig_);
return 0;
@@ -495,27 +482,13 @@ 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;
- sizeimage_ = calculateSizeImage(streamConfig_);
- /*
- * If we return -EINVAL here then the application will think that we
- * don't support streaming mmap. Since we don't support readwrite and
- * userptr either, the application will get confused and think that
- * we don't support anything.
- * On the other hand, if the set format at the time of reqbufs has a
- * zero sizeimage we'll get a floating point exception when we try to
- * stream it.
- */
- if (sizeimage_ == 0)
- LOG(V4L2Compat, Warning)
- << "sizeimage of at least one format is zero. "
- << "Streaming this format will cause a floating point exception.";
-
setFmtFromConfig(streamConfig_);
arg->count = streamConfig_.bufferCount;
@@ -835,104 +808,3 @@ 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 d78a4723..e9626942 100644
--- a/src/v4l2/v4l2_camera_proxy.h
+++ b/src/v4l2/v4l2_camera_proxy.h
@@ -40,7 +40,6 @@ private:
bool validateBufferType(uint32_t type);
bool validateMemoryType(uint32_t memory);
void setFmtFromConfig(StreamConfiguration &streamConfig);
- unsigned int calculateSizeImage(StreamConfiguration &streamConfig);
void querycap(std::shared_ptr<Camera> camera);
void tryFormat(struct v4l2_format *arg);
enum v4l2_priority maxPriority();
@@ -69,13 +68,6 @@ 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_;
generated by cgit v1.2.1 (git 2.18.0) at 2024-05-18 14:38:38 +0000