ipc_frame.h File Reference

#include <stdbool.h>
#include <stddef.h>
#include <memory>

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Classes
struct	Ipc_frame
struct	Ipc_frame_deleter
struct	Ipc_frame_header

Macros
#define	IPC_FRAME_HEADER_LEN   128

Typedefs
using	Ipc_frame_uniq = std::unique_ptr<Ipc_frame, Ipc_frame_deleter>

Enumerations
enum	Ipc_frame_color_spec { IPC_FRAME_COLOR_NONE = 0 , IPC_FRAME_COLOR_RGBA = 1 , IPC_FRAME_COLOR_UYVY = 2 , IPC_FRAME_COLOR_RGB = 11 }

Functions
void	ipc_frame_free (struct Ipc_frame *frame)
Ipc_frame *	ipc_frame_new ()
bool	ipc_frame_parse_header (struct Ipc_frame_header *hdr, const char *buf)
bool	ipc_frame_reserve (struct Ipc_frame *frame, size_t size)
void	ipc_frame_write_header (const struct Ipc_frame_header *hdr, char *dst)

Macro Definition Documentation

IPC_FRAME_HEADER_LEN

#define IPC_FRAME_HEADER_LEN   128

Definition at line 7 of file ipc_frame.h.

Referenced by do_frame_read(), and ipc_frame_write_header().

Typedef Documentation

Ipc_frame_uniq

using Ipc_frame_uniq = std::unique_ptr<Ipc_frame, Ipc_frame_deleter>

Definition at line 40 of file ipc_frame.h.

Enumeration Type Documentation

Ipc_frame_color_spec

enum Ipc_frame_color_spec

Enumerator
IPC_FRAME_COLOR_NONE
IPC_FRAME_COLOR_RGBA
IPC_FRAME_COLOR_UYVY
IPC_FRAME_COLOR_RGB

Definition at line 9 of file ipc_frame.h.

                         {
        IPC_FRAME_COLOR_NONE = 0,
        IPC_FRAME_COLOR_RGBA = 1,
        IPC_FRAME_COLOR_UYVY = 2,
        IPC_FRAME_COLOR_RGB = 11
};

Function Documentation

ipc_frame_free()

void ipc_frame_free

(

struct Ipc_frame *

frame

)

Definition at line 61 of file ipc_frame.cpp.

                                     {
        free(frame->data);
        free(frame);
}

References frame.

Referenced by Ipc_frame_deleter::operator()().

ipc_frame_new()

Ipc_frame * ipc_frame_new

(

)

Definition at line 48 of file ipc_frame.cpp.

                          {
        auto frame = static_cast<Ipc_frame *>(malloc(sizeof(Ipc_frame)));
        frame->header.width = 0;
        frame->header.height = 0;
        frame->header.data_len = 0;
        frame->header.color_spec = IPC_FRAME_COLOR_NONE;
 
        frame->data = nullptr;
        frame->alloc_size = 0;
 
        return frame;
}

References video_frame::color_spec, frame, and IPC_FRAME_COLOR_NONE.

Referenced by display_unix_sock_init(), init(), and main().

ipc_frame_parse_header()

bool ipc_frame_parse_header	(	struct Ipc_frame_header *	hdr,
		const char *	buf )

Definition at line 31 of file ipc_frame.cpp.

                                                                   {
        hdr->width = read_int(buf + 0);
        hdr->height = read_int(buf + 4);
        hdr->data_len = read_int(buf + 8);
        hdr->color_spec = static_cast<Ipc_frame_color_spec>(read_int(buf + 12));
 
        return true;
}

References Ipc_frame_header::color_spec, Ipc_frame_header::data_len, Ipc_frame_header::height, and Ipc_frame_header::width.

Referenced by do_frame_read().

ipc_frame_reserve()

bool ipc_frame_reserve	(	struct Ipc_frame *	frame,
		size_t	size )

Definition at line 66 of file ipc_frame.cpp.

                                                     {
        if(size <= frame->alloc_size)
                return true;
 
        auto newbuf = static_cast<char *>(realloc(frame->data, size));
        if(!newbuf)
                return false;
        frame->data = newbuf;
        frame->alloc_size = size;
 
        return true;
}

References frame.

Referenced by do_frame_read(), ipc_frame_from_ug_frame(), and ipc_frame_from_ug_frame_hq().

ipc_frame_write_header()

void ipc_frame_write_header	(	const struct Ipc_frame_header *	hdr,
		char *	dst )

Definition at line 40 of file ipc_frame.cpp.

                                                                          {
        memset(dst, 0, IPC_FRAME_HEADER_LEN);
        write_int(dst + 0, hdr->width);
        write_int(dst + 4, hdr->height);
        write_int(dst + 8, hdr->data_len);
        write_int(dst + 12, hdr->color_spec);
}

References Ipc_frame_header::color_spec, Ipc_frame_header::data_len, Ipc_frame_header::height, IPC_FRAME_HEADER_LEN, and Ipc_frame_header::width.

Referenced by ipc_frame_writer_write().