xpmdec.c File Reference

#include "libavutil/avstring.h"
#include "libavutil/mem.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "decode.h"

Go to the source code of this file.

Data Structures
struct	XPMContext
struct	ColorEntry

Macros
#define	MIN_ELEMENT   ' '
#define	MAX_ELEMENT   0xfe
#define	NB_ELEMENTS   (MAX_ELEMENT - MIN_ELEMENT + 1)
#define	TIMES256(idx)   TIMES64(4 * (idx)) TIMES64(4 * (idx) + 1) TIMES64(4 * (idx) + 2) TIMES64(4 * (idx) + 3)
#define	TIMES64(idx)   TIMES16(4 * (idx)) TIMES16(4 * (idx) + 1) TIMES16(4 * (idx) + 2) TIMES16(4 * (idx) + 3)
#define	TIMES16(idx)   TIMES4(4 * (idx)) TIMES4(4 * (idx) + 1) TIMES4(4 * (idx) + 2) TIMES4(4 * (idx) + 3)
#define	TIMES4(idx)   ENTRY(4 * (idx)) ENTRY(4 * (idx) + 1) ENTRY(4 * (idx) + 2) ENTRY(4 * (idx) + 3)
#define	ENTRY(x)

Functions
static int	color_table_compare (const void *lhs, const void *rhs)
static unsigned	hex_char_to_number (uint8_t x)
static size_t	mod_strcspn (const char *string, const char *reject)
static uint32_t	color_string_to_rgba (const char *p, size_t len)
static int	ascii2index (const uint8_t *cpixel, int cpp)
static int	xpm_decode_frame (AVCodecContext *avctx, AVFrame *p, int *got_frame, AVPacket *avpkt)
static av_cold int	xpm_decode_close (AVCodecContext *avctx)

Variables
static const ColorEntry	color_table []
const FFCodec	ff_xpm_decoder

Macro Definition Documentation

MIN_ELEMENT

#define MIN_ELEMENT   ' '

Definition at line 30 of file xpmdec.c.

MAX_ELEMENT

#define MAX_ELEMENT   0xfe

Definition at line 31 of file xpmdec.c.

NB_ELEMENTS

#define NB_ELEMENTS   (MAX_ELEMENT - MIN_ELEMENT + 1)

Definition at line 32 of file xpmdec.c.

TIMES256

#define TIMES256

(

idx

)

TIMES64(4 * (idx)) TIMES64(4 * (idx) + 1) TIMES64(4 * (idx) + 2) TIMES64(4 * (idx) + 3)

TIMES64

#define TIMES64

(

idx

)

TIMES16(4 * (idx)) TIMES16(4 * (idx) + 1) TIMES16(4 * (idx) + 2) TIMES16(4 * (idx) + 3)

TIMES16

#define TIMES16

(

idx

)

TIMES4(4 * (idx)) TIMES4(4 * (idx) + 1) TIMES4(4 * (idx) + 2) TIMES4(4 * (idx) + 3)

TIMES4

#define TIMES4

(

idx

)

ENTRY(4 * (idx)) ENTRY(4 * (idx) + 1) ENTRY(4 * (idx) + 2) ENTRY(4 * (idx) + 3)

ENTRY

#define ENTRY

(

x

)

Value:

                       [x] = ((x) >= 'a' && (x) <= 'f') ? (x) - ('a' - 10) : \
                       ((x) >= 'A' && (x) <= 'F') ? (x) - ('A' - 10) : \
                       ((x) >= '0' && (x) <= '9') ? (x) - '0' : 0,

Function Documentation

color_table_compare()

static int color_table_compare ( const void *  lhs, const void *  rhs  )

static

Definition at line 46 of file xpmdec.c.

Referenced by color_string_to_rgba().

hex_char_to_number()

static unsigned hex_char_to_number ( uint8_t  x )

static

Definition at line 195 of file xpmdec.c.

Referenced by color_string_to_rgba().

mod_strcspn()

static size_t mod_strcspn ( const char *  string, const char *  reject  )

static

Definition at line 218 of file xpmdec.c.

Referenced by xpm_decode_frame().

color_string_to_rgba()

static uint32_t color_string_to_rgba ( const char *  p, size_t  len  )

static

Definition at line 244 of file xpmdec.c.

Referenced by xpm_decode_frame().

ascii2index()

static int ascii2index ( const uint8_t *  cpixel, int  cpp  )

static

Definition at line 298 of file xpmdec.c.

Referenced by xpm_decode_frame().

xpm_decode_frame()

static int xpm_decode_frame ( AVCodecContext *  avctx, AVFrame *  p, int *  got_frame, AVPacket *  avpkt  )

static

Definition at line 312 of file xpmdec.c.

xpm_decode_close()

static av_cold int xpm_decode_close ( AVCodecContext *  avctx )

static

Definition at line 437 of file xpmdec.c.

Variable Documentation

color_table

const ColorEntry color_table[]

static

Definition at line 51 of file xpmdec.c.

Referenced by color_string_to_rgba(), ff_get_qtpalette(), rgtc1_block_internal(), and seq_decode_op1().

ff_xpm_decoder

const FFCodec ff_xpm_decoder

Initial value:

= {
    .p.name         = "xpm",
    CODEC_LONG_NAME("XPM (X PixMap) image"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_XPM,
    .p.capabilities = AV_CODEC_CAP_DR1,
    .priv_data_size = sizeof(XPMDecContext),
    .close          = xpm_decode_close,
    .caps_internal  = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
    FF_CODEC_DECODE_CB(xpm_decode_frame),
}

Definition at line 448 of file xpmdec.c.