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path: root/test/v4l2_videodevice/v4l2_m2mdevice.cpp

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author	Niklas Söderlund <niklas.soderlund@ragnatech.se>	2020-04-27 14:58:31 +0200
committer	Niklas Söderlund <niklas.soderlund@ragnatech.se>	2020-05-01 12:24:07 +0200
commit	e66d4f382317c1339cc46071f558affd1582062b (patch)
tree	8895785fde1c795650be348990f49a09943b43c3 /test/v4l2_videodevice/v4l2_m2mdevice.cpp
parent	f703aa0600b8160653a226acf396b8a7ee1f043f (diff)

cam: options: Make KeyValueParser::parse() virtual

Prepare for sub-classing of the KeyValueParser by making the parse() method virtual. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Diffstat (limited to 'test/v4l2_videodevice/v4l2_m2mdevice.cpp')

0 files changed, 0 insertions, 0 deletions

nclude <errno.h> /** * \file formats.h * \brief Types and helper methods to handle libcamera image formats */ namespace libcamera { /** * \class ImageFormats * \brief Describe V4L2Device and V4L2SubDevice image formats * * This class stores a list of image formats, each associated with a * corresponding set of image sizes. It is used to describe the formats and * sizes supported by a V4L2Device or V4L2Subdevice. * * Formats are stored as an integer. When used for a V4L2Device, the image * formats are fourcc pixel formats. When used for a V4L2Subdevice they are * media bus codes. Both are defined by the V4L2 specification. * * Sizes are stored as a list of SizeRange. */ /** * \brief Add a format and corresponding sizes to the description * \param[in] format Pixel format or media bus code to describe * \param[in] sizes List of supported size ranges for the format * * \return 0 on success or a negative error code otherwise * \retval -EEXIST The format is already described */ int ImageFormats::addFormat(unsigned int format, const std::vector<SizeRange> &sizes) { if (data_.find(format) != data_.end()) return -EEXIST; data_[format] = sizes; return 0; } /** * \brief Check if the list of devices supported formats is empty * \return True if the list of supported formats is empty */ bool ImageFormats::isEmpty() const { return data_.empty(); } /** * \brief Retrieve a list of all supported image formats * \return List of pixel formats or media bus codes */ std::vector<unsigned int> ImageFormats::formats() const { std::vector<unsigned int> formats; formats.reserve(data_.size()); /* \todo: Should this be cached instead of computed each time? */ for (auto const &it : data_) formats.push_back(it.first); return formats; } /** * \brief Retrieve all sizes for a specific format * \param[in] format The pixel format or mbus code * * Retrieve all size ranges for a specific format. For V4L2Device \a format is a * pixel format while for a V4L2Subdevice \a format is a media bus code. * * \return The list of image sizes supported for \a format, or an empty list if * the format is not supported */ const std::vector<SizeRange> &ImageFormats::sizes(unsigned int format) const { static const std::vector<SizeRange> empty; auto const &it = data_.find(format); if (it == data_.end()) return empty; return it->second; } /** * \brief Retrieve the map that associates formats to image sizes * \return The map that associates formats to image sizes */ const std::map<unsigned int, std::vector<SizeRange>> &ImageFormats::data() const { return data_; } } /* namespace libcamera */


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