DRMPRIME Namespace Reference

Classes
class	CDmaBufIdentityCache
	Ioctl-free bookkeeping for one caller-owned kernel object per dma-buf identity. More...
struct	DmaBufIdentity
	Identifies a frame's memory and layout across file descriptor reuse. More...

Typedefs
using	StatInodeFn = std::function<bool(int fd, uint64_t& inode)>
	Writes the dma-buf inode for fd; false on failure.

Functions
bool	StatInode (int fd, uint64_t &inode)
std::optional< DmaBufIdentity >	GetDmaBufIdentity (const AVDRMFrameDescriptor *descriptor, uint32_t width, uint32_t height)
	Identity of descriptor layer[0] only; nbLayers is keyed, layers 1+ are not inspected: a consumer that reads layers 1+ must not key on this identity. Returns nullopt for a missing or malformed descriptor or an unreadable inode.
std::optional< DmaBufIdentity >	GetDmaBufIdentity (const AVDRMFrameDescriptor *descriptor, uint32_t width, uint32_t height, const StatInodeFn &statInode)
	Test seam: same, with an injectable stat function.
std::string	GetColorEncoding (const VideoPicture &picture)
std::string	GetColorRange (const VideoPicture &picture)

Typedef Documentation

StatInodeFn

using DRMPRIME::StatInodeFn = std::function<bool(int fd, uint64_t& inode)>

Writes the dma-buf inode for fd; false on failure.

Function Documentation

GetColorEncoding()

std::string DRMPRIME::GetColorEncoding

(

const VideoPicture &

picture

)

GetColorRange()

std::string DRMPRIME::GetColorRange

(

const VideoPicture &

picture

)

GetDmaBufIdentity() [1/2]

std::optional< DmaBufIdentity > DRMPRIME::GetDmaBufIdentity	(	const AVDRMFrameDescriptor *	descriptor,
		uint32_t	width,
		uint32_t	height )

Identity of descriptor layer[0] only; nbLayers is keyed, layers 1+ are not inspected: a consumer that reads layers 1+ must not key on this identity. Returns nullopt for a missing or malformed descriptor or an unreadable inode.

GetDmaBufIdentity() [2/2]

std::optional< DmaBufIdentity > DRMPRIME::GetDmaBufIdentity	(	const AVDRMFrameDescriptor *	descriptor,
		uint32_t	width,
		uint32_t	height,
		const StatInodeFn &	statInode )

Test seam: same, with an injectable stat function.

StatInode()

bool DRMPRIME::StatInode	(	int	fd,
		uint64_t &	inode )