FFmpeg
Macros | Functions | Variables
xbmdec.c File Reference
#include "libavutil/reverse.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "decode.h"

Go to the source code of this file.

Macros

#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 get_nibble (uint8_t x)
 
static int parse_str_int (const uint8_t *p, const uint8_t *end, const uint8_t *key)
 
static int xbm_decode_frame (AVCodecContext *avctx, AVFrame *p, int *got_frame, AVPacket *avpkt)
 

Variables

const FFCodec ff_xbm_decoder
 

Macro Definition Documentation

◆ 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' : 255,

Function Documentation

◆ get_nibble()

static int get_nibble ( uint8_t  x)
static

Definition at line 29 of file xbmdec.c.

Referenced by xbm_decode_frame().

◆ parse_str_int()

static int parse_str_int ( const uint8_t *  p,
const uint8_t *  end,
const uint8_t *  key 
)
static

Definition at line 49 of file xbmdec.c.

Referenced by xbm_decode_frame().

◆ xbm_decode_frame()

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

Definition at line 71 of file xbmdec.c.

Variable Documentation

◆ ff_xbm_decoder

const FFCodec ff_xbm_decoder
Initial value:
= {
.p.name = "xbm",
CODEC_LONG_NAME("XBM (X BitMap) image"),
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_XBM,
.p.capabilities = AV_CODEC_CAP_DR1,
}

Definition at line 143 of file xbmdec.c.

FF_CODEC_DECODE_CB
#define FF_CODEC_DECODE_CB(func)
Definition: codec_internal.h:286
CODEC_LONG_NAME
#define CODEC_LONG_NAME(str)
Definition: codec_internal.h:271
xbm_decode_frame
static int xbm_decode_frame(AVCodecContext *avctx, AVFrame *p, int *got_frame, AVPacket *avpkt)
Definition: xbmdec.c:71
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame sett...
Definition: codec_internal.h:54
AV_CODEC_ID_XBM
@ AV_CODEC_ID_XBM
Definition: codec_id.h:212
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201