libavcodec/escape124.c File Reference

#include "avcodec.h"
#include "get_bits.h"

Go to the source code of this file.

Data Structures

union  MacroBlock
union  SuperBlock
struct  CodeBook
struct  Escape124Context




static int can_safely_read (GetBitContext *gb, uint64_t bits)
static av_cold int escape124_decode_init (AVCodecContext *avctx)
 Initialize the decoder.
static av_cold int escape124_decode_close (AVCodecContext *avctx)
static CodeBook unpack_codebook (GetBitContext *gb, unsigned depth, unsigned size)
static unsigned decode_skip_count (GetBitContext *gb)
static MacroBlock decode_macroblock (Escape124Context *s, GetBitContext *gb, int *codebook_index, int superblock_index)
static void insert_mb_into_sb (SuperBlock *sb, MacroBlock mb, unsigned index)
static void copy_superblock (uint16_t *dest, unsigned dest_stride, uint16_t *src, unsigned src_stride)
static int escape124_decode_frame (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)


static const uint16_t mask_matrix []
AVCodec ff_escape124_decoder

Define Documentation


Definition at line 24 of file escape124.c.

Function Documentation

static int can_safely_read ( GetBitContext gb,
uint64_t  bits 
) [static]

Definition at line 51 of file escape124.c.

Referenced by decode_skip_count(), escape124_decode_frame(), and unpack_codebook().

static void copy_superblock ( uint16_t *  dest,
unsigned  dest_stride,
uint16_t *  src,
unsigned  src_stride 
) [static]

Definition at line 181 of file escape124.c.

Referenced by escape124_decode_frame().

static MacroBlock decode_macroblock ( Escape124Context s,
GetBitContext gb,
int codebook_index,
int  superblock_index 
) [static]

Definition at line 141 of file escape124.c.

Referenced by escape124_decode_frame().

static unsigned decode_skip_count ( GetBitContext gb  )  [static]

Definition at line 119 of file escape124.c.

Referenced by escape124_decode_frame(), and escape130_decode_frame().

static av_cold int escape124_decode_close ( AVCodecContext avctx  )  [static]

Definition at line 73 of file escape124.c.

static int escape124_decode_frame ( AVCodecContext avctx,
void *  data,
int data_size,
AVPacket avpkt 
) [static]

Definition at line 199 of file escape124.c.

static av_cold int escape124_decode_init ( AVCodecContext avctx  )  [static]

Initialize the decoder.

avctx decoder context
0 success, negative on error

Definition at line 60 of file escape124.c.

static void insert_mb_into_sb ( SuperBlock sb,
MacroBlock  mb,
unsigned  index 
) [static]

Definition at line 172 of file escape124.c.

Referenced by escape124_decode_frame().

static CodeBook unpack_codebook ( GetBitContext gb,
unsigned  depth,
unsigned  size 
) [static]

Definition at line 87 of file escape124.c.

Referenced by escape124_decode_frame().

Variable Documentation

Initial value:

    .name           = "escape124",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_ESCAPE124,
    .priv_data_size = sizeof(Escape124Context),
    .init           = escape124_decode_init,
    .close          = escape124_decode_close,
    .decode         = escape124_decode_frame,
    .capabilities   = CODEC_CAP_DR1,
    .long_name      = NULL_IF_CONFIG_SMALL("Escape 124"),

Definition at line 368 of file escape124.c.

const uint16_t mask_matrix[] [static]

Initial value:

 {0x1,   0x2,   0x10,   0x20,
                                       0x4,   0x8,   0x40,   0x80,
                                       0x100, 0x200, 0x1000, 0x2000,
                                       0x400, 0x800, 0x4000, 0x8000}

Definition at line 194 of file escape124.c.

Referenced by escape124_decode_frame().

Generated on Fri Oct 26 02:50:05 2012 for FFmpeg by  doxygen 1.5.8