libavcodec/snow.c File Reference

#include "avcodec.h"
#include "dsputil.h"
#include "snow.h"
#include "rangecoder.h"
#include "mathops.h"
#include "mpegvideo.h"
#include <assert.h>

Go to the source code of this file.

Data Structures

struct  BlockNode
struct  x_and_coeff
struct  SubBand
struct  Plane
struct  SnowContext
struct  DWTCompose

Defines

#define BLOCK_INTRA   1
#define BLOCK_OPT   2
#define LOG2_MB_SIZE   4
#define MB_SIZE   (1<<LOG2_MB_SIZE)
#define ENCODER_EXTRA_BITS   4
#define HTAPS_MAX   8
#define QBIAS_SHIFT   3
#define ME_CACHE_SIZE   1024
#define slice_buffer_get_line(slice_buf, line_num)   ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] : slice_buffer_load_line((slice_buf), (line_num)))
#define QEXPSHIFT   (7-FRAC_BITS+8)
#define LIFT(src, ref, inv)   ((src) + ((inv) ? - (ref) : + (ref)))
#define LIFT(src, ref, inv)   ((src) + ((inv) ? - (ref) : + (ref)))
#define LIFTS(src, ref, inv)
#define LIFTS(src, ref, inv)
#define P_LEFT   P[1]
#define P_TOP   P[2]
#define P_TOPRIGHT   P[3]
#define P_MEDIAN   P[4]
#define P_MV1   P[9]
#define FLAG_QPEL   1
#define mca(dx, dy, b_w)
#define mcf(dx, dy)
#define mcfh(dx, dy)
#define QUANTIZE2   0
#define USE_HALFPEL_PLANE   0

Functions

static void iterative_me (SnowContext *s)
static void slice_buffer_init (slice_buffer *buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM *base_buffer)
static IDWTELEM * slice_buffer_load_line (slice_buffer *buf, int line)
static void slice_buffer_release (slice_buffer *buf, int line)
static void slice_buffer_flush (slice_buffer *buf)
static void slice_buffer_destroy (slice_buffer *buf)
static int mirror (int v, int m)
static void put_symbol (RangeCoder *c, uint8_t *state, int v, int is_signed)
static int get_symbol (RangeCoder *c, uint8_t *state, int is_signed)
static void put_symbol2 (RangeCoder *c, uint8_t *state, int v, int log2)
static int get_symbol2 (RangeCoder *c, uint8_t *state, int log2)
static av_always_inline void lift (DWTELEM *dst, DWTELEM *src, DWTELEM *ref, int dst_step, int src_step, int ref_step, int width, int mul, int add, int shift, int highpass, int inverse)
static av_always_inline void inv_lift (IDWTELEM *dst, IDWTELEM *src, IDWTELEM *ref, int dst_step, int src_step, int ref_step, int width, int mul, int add, int shift, int highpass, int inverse)
static av_always_inline void liftS (DWTELEM *dst, DWTELEM *src, DWTELEM *ref, int dst_step, int src_step, int ref_step, int width, int mul, int add, int shift, int highpass, int inverse)
static av_always_inline void inv_liftS (IDWTELEM *dst, IDWTELEM *src, IDWTELEM *ref, int dst_step, int src_step, int ref_step, int width, int mul, int add, int shift, int highpass, int inverse)
static void horizontal_decompose53i (DWTELEM *b, int width)
static void vertical_decompose53iH0 (DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width)
static void vertical_decompose53iL0 (DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width)
static void spatial_decompose53i (DWTELEM *buffer, int width, int height, int stride)
static void horizontal_decompose97i (DWTELEM *b, int width)
static void vertical_decompose97iH0 (DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width)
static void vertical_decompose97iH1 (DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width)
static void vertical_decompose97iL0 (DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width)
static void vertical_decompose97iL1 (DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width)
static void spatial_decompose97i (DWTELEM *buffer, int width, int height, int stride)
void ff_spatial_dwt (DWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count)
static void horizontal_compose53i (IDWTELEM *b, int width)
static void vertical_compose53iH0 (IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
static void vertical_compose53iL0 (IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
static void spatial_compose53i_buffered_init (DWTCompose *cs, slice_buffer *sb, int height, int stride_line)
static void spatial_compose53i_init (DWTCompose *cs, IDWTELEM *buffer, int height, int stride)
static void spatial_compose53i_dy_buffered (DWTCompose *cs, slice_buffer *sb, int width, int height, int stride_line)
static void spatial_compose53i_dy (DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride)
static void av_unused spatial_compose53i (IDWTELEM *buffer, int width, int height, int stride)
void ff_snow_horizontal_compose97i (IDWTELEM *b, int width)
static void vertical_compose97iH0 (IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
static void vertical_compose97iH1 (IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
static void vertical_compose97iL0 (IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
static void vertical_compose97iL1 (IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
void ff_snow_vertical_compose97i (IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width)
static void spatial_compose97i_buffered_init (DWTCompose *cs, slice_buffer *sb, int height, int stride_line)
static void spatial_compose97i_init (DWTCompose *cs, IDWTELEM *buffer, int height, int stride)
static void spatial_compose97i_dy_buffered (DSPContext *dsp, DWTCompose *cs, slice_buffer *sb, int width, int height, int stride_line)
static void spatial_compose97i_dy (DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride)
static void av_unused spatial_compose97i (IDWTELEM *buffer, int width, int height, int stride)
static void ff_spatial_idwt_buffered_init (DWTCompose *cs, slice_buffer *sb, int width, int height, int stride_line, int type, int decomposition_count)
static void ff_spatial_idwt_init (DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count)
static void ff_spatial_idwt_slice (DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count, int y)
static void ff_spatial_idwt_buffered_slice (DSPContext *dsp, DWTCompose *cs, slice_buffer *slice_buf, int width, int height, int stride_line, int type, int decomposition_count, int y)
static void ff_spatial_idwt (IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count)
static int encode_subband_c0run (SnowContext *s, SubBand *b, IDWTELEM *src, IDWTELEM *parent, int stride, int orientation)
static int encode_subband (SnowContext *s, SubBand *b, IDWTELEM *src, IDWTELEM *parent, int stride, int orientation)
static void unpack_coeffs (SnowContext *s, SubBand *b, SubBand *parent, int orientation)
static void decode_subband_slice_buffered (SnowContext *s, SubBand *b, slice_buffer *sb, int start_y, int h, int save_state[1])
static void reset_contexts (SnowContext *s)
static int alloc_blocks (SnowContext *s)
static void copy_rac_state (RangeCoder *d, RangeCoder *s)
static int pix_sum (uint8_t *pix, int line_size, int w)
static int pix_norm1 (uint8_t *pix, int line_size, int w)
static void set_blocks (SnowContext *s, int level, int x, int y, int l, int cb, int cr, int mx, int my, int ref, int type)
static void init_ref (MotionEstContext *c, uint8_t *src[3], uint8_t *ref[3], uint8_t *ref2[3], int x, int y, int ref_index)
static void pred_mv (SnowContext *s, int *mx, int *my, int ref, const BlockNode *left, const BlockNode *top, const BlockNode *tr)
static int encode_q_branch (SnowContext *s, int level, int x, int y)
static av_always_inline int same_block (BlockNode *a, BlockNode *b)
static void encode_q_branch2 (SnowContext *s, int level, int x, int y)
static void decode_q_branch (SnowContext *s, int level, int x, int y)
static void encode_blocks (SnowContext *s, int search)
static void decode_blocks (SnowContext *s)
static void mc_block (Plane *p, uint8_t *dst, const uint8_t *src, uint8_t *tmp, int stride, int b_w, int b_h, int dx, int dy)
 mca (mca(0, mca(0, 16)
void ff_snow_inner_add_yblock (const uint8_t *obmc, const int obmc_stride, uint8_t **block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer *sb, int add, uint8_t *dst8)
static av_always_inline void add_yblock (SnowContext *s, int sliced, slice_buffer *sb, IDWTELEM *dst, uint8_t *dst8, const uint8_t *obmc, int src_x, int src_y, int b_w, int b_h, int w, int h, int dst_stride, int src_stride, int obmc_stride, int b_x, int b_y, int add, int offset_dst, int plane_index)
static av_always_inline void predict_slice_buffered (SnowContext *s, slice_buffer *sb, IDWTELEM *old_buffer, int plane_index, int add, int mb_y)
static av_always_inline void predict_slice (SnowContext *s, IDWTELEM *buf, int plane_index, int add, int mb_y)
static av_always_inline void predict_plane (SnowContext *s, IDWTELEM *buf, int plane_index, int add)
static int get_dc (SnowContext *s, int mb_x, int mb_y, int plane_index)
static int get_block_bits (SnowContext *s, int x, int y, int w)
static int get_block_rd (SnowContext *s, int mb_x, int mb_y, int plane_index, const uint8_t *obmc_edged)
static int get_4block_rd (SnowContext *s, int mb_x, int mb_y, int plane_index)
static av_always_inline int check_block (SnowContext *s, int mb_x, int mb_y, int p[3], int intra, const uint8_t *obmc_edged, int *best_rd)
static av_always_inline int check_block_inter (SnowContext *s, int mb_x, int mb_y, int p0, int p1, const uint8_t *obmc_edged, int *best_rd)
static av_always_inline int check_4block_inter (SnowContext *s, int mb_x, int mb_y, int p0, int p1, int ref, int *best_rd)
static void quantize (SnowContext *s, SubBand *b, IDWTELEM *dst, DWTELEM *src, int stride, int bias)
static void dequantize_slice_buffered (SnowContext *s, slice_buffer *sb, SubBand *b, IDWTELEM *src, int stride, int start_y, int end_y)
static void dequantize (SnowContext *s, SubBand *b, IDWTELEM *src, int stride)
static void decorrelate (SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median)
static void correlate_slice_buffered (SnowContext *s, slice_buffer *sb, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median, int start_y, int end_y)
static void correlate (SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median)
static void encode_qlogs (SnowContext *s)
static void encode_header (SnowContext *s)
static void update_last_header_values (SnowContext *s)
static void decode_qlogs (SnowContext *s)
static int decode_header (SnowContext *s)
static void init_qexp (void)
static av_cold int common_init (AVCodecContext *avctx)
static int common_init_after_header (AVCodecContext *avctx)
static int qscale2qlog (int qscale)
static int ratecontrol_1pass (SnowContext *s, AVFrame *pict)
static void calculate_visual_weight (SnowContext *s, Plane *p)
static av_cold int encode_init (AVCodecContext *avctx)
static void halfpel_interpol (SnowContext *s, uint8_t *halfpel[4][4], AVFrame *frame)
static int frame_start (SnowContext *s)
static int encode_frame (AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data)
static av_cold void common_end (SnowContext *s)
static av_cold int encode_end (AVCodecContext *avctx)
static av_cold int decode_init (AVCodecContext *avctx)
static int decode_frame (AVCodecContext *avctx, void *data, int *data_size, const uint8_t *buf, int buf_size)
static av_cold int decode_end (AVCodecContext *avctx)

Variables

static const int8_t quant3 [256]
static const int8_t quant3b [256]
static const int8_t quant3bA [256]
static const int8_t quant5 [256]
static const int8_t quant7 [256]
static const int8_t quant9 [256]
static const int8_t quant11 [256]
static const int8_t quant13 [256]
static const uint8_t obmc32 [1024]
static const uint8_t obmc16 [256]
static const uint8_t obmc8 [64]
static const uint8_t obmc4 [16]
static const uint8_t *const obmc_tab [4]
static int scale_mv_ref [MAX_REF_FRAMES][MAX_REF_FRAMES]
static const BlockNode null_block
static uint8_t qexp [QROOT]
AVCodec snow_decoder

Define Documentation

#define BLOCK_INTRA   1

Definition at line 380 of file snow.c.

Referenced by check_4block_inter(), check_block(), decode_q_branch(), encode_q_branch(), encode_q_branch2(), get_block_bits(), get_dc(), iterative_me(), mca(), and same_block().

#define BLOCK_OPT   2

Definition at line 381 of file snow.c.

Referenced by iterative_me().

#define ENCODER_EXTRA_BITS   4

Definition at line 397 of file snow.c.

Referenced by encode_frame(), and quantize().

#define FLAG_QPEL   1

Definition at line 1735 of file snow.c.

#define HTAPS_MAX   8

Definition at line 398 of file snow.c.

Referenced by decode_header(), get_block_rd(), mc_block(), and mca().

#define LIFT ( src,
ref,
inv   )     ((src) + ((inv) ? - (ref) : + (ref)))

#define LIFT ( src,
ref,
inv   )     ((src) + ((inv) ? - (ref) : + (ref)))

Referenced by inv_lift(), and lift().

#define LIFTS ( src,
ref,
inv   ) 

Value:

((inv) ? \
        (src) + (((ref) + 4*(src))>>shift): \
        -((-16*(src) + (ref) + add/4 + 1 + (5<<25))/(5*4) - (1<<23)))

#define LIFTS ( src,
ref,
inv   ) 

Value:

((inv) ? \
            (src) + (((ref) + 4*(src))>>shift): \
            -((-16*(src) + (ref) + add/4 + 1 + (5<<25))/(5*4) - (1<<23)))

Referenced by inv_liftS(), and liftS().

#define LOG2_MB_SIZE   4

Definition at line 395 of file snow.c.

Referenced by alloc_blocks(), and encode_q_branch().

#define MB_SIZE   (1<<LOG2_MB_SIZE)

Definition at line 396 of file snow.c.

Referenced by add_yblock(), common_init(), decode_frame(), encode_blocks(), encode_init(), get_4block_rd(), get_block_rd(), get_dc(), iterative_me(), mca(), predict_slice(), and predict_slice_buffered().

#define mca ( dx,
dy,
b_w   ) 

Value:

static void mc_block_hpel ## dx ## dy ## b_w(uint8_t *dst, const uint8_t *src, int stride, int h){\
    uint8_t tmp[stride*(b_w+HTAPS_MAX-1)];\
    assert(h==b_w);\
    mc_block(NULL, dst, src-(HTAPS_MAX/2-1)-(HTAPS_MAX/2-1)*stride, tmp, stride, b_w, b_w, dx, dy);\
}

Definition at line 2290 of file snow.c.

#define mcf ( dx,
dy   ) 

Value:

s->dsp.put_qpel_pixels_tab       [0][dy+dx/4]=\
    s->dsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\
        s->dsp.put_h264_qpel_pixels_tab[0][dy+dx/4];\
    s->dsp.put_qpel_pixels_tab       [1][dy+dx/4]=\
    s->dsp.put_no_rnd_qpel_pixels_tab[1][dy+dx/4]=\
        s->dsp.put_h264_qpel_pixels_tab[1][dy+dx/4];

Referenced by common_init().

#define mcfh ( dx,
dy   ) 

Value:

s->dsp.put_pixels_tab       [0][dy/4+dx/8]=\
    s->dsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\
        mc_block_hpel ## dx ## dy ## 16;\
    s->dsp.put_pixels_tab       [1][dy/4+dx/8]=\
    s->dsp.put_no_rnd_pixels_tab[1][dy/4+dx/8]=\
        mc_block_hpel ## dx ## dy ## 8;

Referenced by common_init().

#define ME_CACHE_SIZE   1024

Definition at line 486 of file snow.c.

Referenced by check_4block_inter(), and check_block().

#define P_LEFT   P[1]

Definition at line 1730 of file snow.c.

#define P_MEDIAN   P[4]

Definition at line 1733 of file snow.c.

#define P_MV1   P[9]

Definition at line 1734 of file snow.c.

#define P_TOP   P[2]

Definition at line 1731 of file snow.c.

#define P_TOPRIGHT   P[3]

Definition at line 1732 of file snow.c.

#define QBIAS_SHIFT   3

Definition at line 479 of file snow.c.

Referenced by decode_subband_slice_buffered(), dequantize(), and dequantize_slice_buffered().

#define QEXPSHIFT   (7-FRAC_BITS+8)

Definition at line 585 of file snow.c.

Referenced by decode_subband_slice_buffered(), dequantize(), dequantize_slice_buffered(), and quantize().

#define QUANTIZE2   0

Definition at line 3857 of file snow.c.

Referenced by encode_frame().

#define slice_buffer_get_line ( slice_buf,
line_num   )     ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] : slice_buffer_load_line((slice_buf), (line_num)))

Definition at line 504 of file snow.c.

#define USE_HALFPEL_PLANE   0

Definition at line 4075 of file snow.c.

Referenced by frame_start().

Function Documentation

static av_always_inline void add_yblock ( SnowContext *  s,
int  sliced,
slice_buffer *  sb,
IDWTELEM *  dst,
uint8_t *  dst8,
const uint8_t *  obmc,
int  src_x,
int  src_y,
int  b_w,
int  b_h,
int  w,
int  h,
int  dst_stride,
int  src_stride,
int  obmc_stride,
int  b_x,
int  b_y,
int  add,
int  offset_dst,
int  plane_index 
) [static]

Definition at line 2420 of file snow.c.

Referenced by get_4block_rd(), get_dc(), predict_slice(), and predict_slice_buffered().

static int alloc_blocks ( SnowContext *  s  )  [static]

Definition at line 1622 of file snow.c.

Referenced by decode_frame(), and encode_init().

static void calculate_visual_weight ( SnowContext *  s,
Plane *  p 
) [static]

Definition at line 3831 of file snow.c.

Referenced by encode_frame().

static av_always_inline int check_4block_inter ( SnowContext *  s,
int  mb_x,
int  mb_y,
int  p0,
int  p1,
int  ref,
int *  best_rd 
) [static]

Definition at line 2992 of file snow.c.

Referenced by iterative_me().

static av_always_inline int check_block ( SnowContext *  s,
int  mb_x,
int  mb_y,
int  p[3],
int  intra,
const uint8_t *  obmc_edged,
int *  best_rd 
) [static]

Definition at line 2947 of file snow.c.

Referenced by check_block_inter(), and iterative_me().

static av_always_inline int check_block_inter ( SnowContext *  s,
int  mb_x,
int  mb_y,
int  p0,
int  p1,
const uint8_t *  obmc_edged,
int *  best_rd 
) [static]

Definition at line 2987 of file snow.c.

Referenced by iterative_me().

static av_cold void common_end ( SnowContext *  s  )  [static]

Definition at line 4441 of file snow.c.

static av_cold int common_init ( AVCodecContext *  avctx  )  [static]

Definition at line 3652 of file snow.c.

static int common_init_after_header ( AVCodecContext *  avctx  )  [static]

Definition at line 3721 of file snow.c.

Referenced by decode_frame(), and encode_frame().

static void copy_rac_state ( RangeCoder *  d,
RangeCoder *  s 
) [inline, static]

Definition at line 1634 of file snow.c.

static void correlate ( SnowContext *  s,
SubBand *  b,
IDWTELEM *  src,
int  stride,
int  inverse,
int  use_median 
) [static]

Definition at line 3413 of file snow.c.

Referenced by encode_frame().

static void correlate_slice_buffered ( SnowContext *  s,
slice_buffer *  sb,
SubBand *  b,
IDWTELEM *  src,
int  stride,
int  inverse,
int  use_median,
int  start_y,
int  end_y 
) [static]

Definition at line 3383 of file snow.c.

Referenced by decode_frame().

static void decode_blocks ( SnowContext *  s  )  [static]

Definition at line 2094 of file snow.c.

Referenced by decode_frame().

static av_cold int decode_end ( AVCodecContext *  avctx  )  [static]

Definition at line 4656 of file snow.c.

static int decode_frame ( AVCodecContext *  avctx,
void *  data,
int *  data_size,
const uint8_t *  buf,
int  buf_size 
) [static]

Definition at line 4493 of file snow.c.

static int decode_header ( SnowContext *  s  )  [static]

Definition at line 3557 of file snow.c.

Referenced by decode_frame().

static av_cold int decode_init ( AVCodecContext *  avctx  )  [static]

Definition at line 4484 of file snow.c.

static void decode_q_branch ( SnowContext *  s,
int  level,
int  x,
int  y 
) [static]

Definition at line 2023 of file snow.c.

Referenced by decode_blocks().

static void decode_qlogs ( SnowContext *  s  )  [static]

Definition at line 3541 of file snow.c.

Referenced by decode_header().

static void decode_subband_slice_buffered ( SnowContext *  s,
SubBand *  b,
slice_buffer *  sb,
int  start_y,
int  h,
int  save_state[1] 
) [inline, static]

Definition at line 1567 of file snow.c.

Referenced by decode_frame().

static void decorrelate ( SnowContext *  s,
SubBand *  b,
IDWTELEM *  src,
int  stride,
int  inverse,
int  use_median 
) [static]

Definition at line 3359 of file snow.c.

Referenced by encode_frame(), and ratecontrol_1pass().

static void dequantize ( SnowContext *  s,
SubBand *  b,
IDWTELEM *  src,
int  stride 
) [static]

Definition at line 3337 of file snow.c.

Referenced by encode_frame().

static void dequantize_slice_buffered ( SnowContext *  s,
slice_buffer *  sb,
SubBand *  b,
IDWTELEM *  src,
int  stride,
int  start_y,
int  end_y 
) [static]

Definition at line 3314 of file snow.c.

Referenced by decode_frame().

static void encode_blocks ( SnowContext *  s,
int  search 
) [static]

Definition at line 2072 of file snow.c.

Referenced by encode_frame().

static av_cold int encode_end ( AVCodecContext *  avctx  )  [static]

Definition at line 4474 of file snow.c.

static int encode_frame ( AVCodecContext *  avctx,
unsigned char *  buf,
int  buf_size,
void *  data 
) [static]

Definition at line 4161 of file snow.c.

static void encode_header ( SnowContext *  s  )  [static]

Definition at line 3450 of file snow.c.

Referenced by encode_frame().

static av_cold int encode_init ( AVCodecContext *  avctx  )  [static]

Definition at line 3974 of file snow.c.

static int encode_q_branch ( SnowContext *  s,
int  level,
int  x,
int  y 
) [static]

Definition at line 1737 of file snow.c.

Referenced by encode_blocks(), and iterative_me().

static void encode_q_branch2 ( SnowContext *  s,
int  level,
int  x,
int  y 
) [static]

Definition at line 1969 of file snow.c.

Referenced by encode_blocks().

static void encode_qlogs ( SnowContext *  s  )  [static]

Definition at line 3437 of file snow.c.

Referenced by encode_header().

static int encode_subband ( SnowContext *  s,
SubBand *  b,
IDWTELEM *  src,
IDWTELEM *  parent,
int  stride,
int  orientation 
) [static]

Definition at line 1460 of file snow.c.

Referenced by encode_frame().

static int encode_subband_c0run ( SnowContext *  s,
SubBand *  b,
IDWTELEM *  src,
IDWTELEM *  parent,
int  stride,
int  orientation 
) [static]

Definition at line 1340 of file snow.c.

Referenced by encode_subband().

void ff_snow_horizontal_compose97i ( IDWTELEM *  b,
int  width 
)

Definition at line 1141 of file snow.c.

Referenced by dsputil_init(), and spatial_compose97i_dy().

void ff_snow_inner_add_yblock ( const uint8_t *  obmc,
const int  obmc_stride,
uint8_t **  block,
int  b_w,
int  b_h,
int  src_x,
int  src_y,
int  src_stride,
slice_buffer *  sb,
int  add,
uint8_t *  dst8 
)

Definition at line 2386 of file snow.c.

Referenced by dsputil_init(), ff_snow_inner_add_yblock_altivec(), ff_snow_inner_add_yblock_mmx(), and ff_snow_inner_add_yblock_sse2().

void ff_snow_vertical_compose97i ( IDWTELEM *  b0,
IDWTELEM *  b1,
IDWTELEM *  b2,
IDWTELEM *  b3,
IDWTELEM *  b4,
IDWTELEM *  b5,
int  width 
)

Definition at line 1187 of file snow.c.

Referenced by dsputil_init().

void ff_spatial_dwt ( DWTELEM *  buffer,
int  width,
int  height,
int  stride,
int  type,
int  decomposition_count 
)

Definition at line 1010 of file snow.c.

Referenced by encode_frame().

static void ff_spatial_idwt ( IDWTELEM *  buffer,
int  width,
int  height,
int  stride,
int  type,
int  decomposition_count 
) [static]

Definition at line 1332 of file snow.c.

Referenced by calculate_visual_weight(), and encode_frame().

static void ff_spatial_idwt_buffered_init ( DWTCompose *  cs,
slice_buffer *  sb,
int  width,
int  height,
int  stride_line,
int  type,
int  decomposition_count 
) [static]

Definition at line 1278 of file snow.c.

Referenced by decode_frame().

static void ff_spatial_idwt_buffered_slice ( DSPContext *  dsp,
DWTCompose *  cs,
slice_buffer *  slice_buf,
int  width,
int  height,
int  stride_line,
int  type,
int  decomposition_count,
int  y 
) [static]

Definition at line 1315 of file snow.c.

Referenced by decode_frame().

static void ff_spatial_idwt_init ( DWTCompose *  cs,
IDWTELEM *  buffer,
int  width,
int  height,
int  stride,
int  type,
int  decomposition_count 
) [static]

Definition at line 1288 of file snow.c.

Referenced by ff_spatial_idwt().

static void ff_spatial_idwt_slice ( DWTCompose *  cs,
IDWTELEM *  buffer,
int  width,
int  height,
int  stride,
int  type,
int  decomposition_count,
int  y 
) [static]

Definition at line 1298 of file snow.c.

Referenced by ff_spatial_idwt().

static int frame_start ( SnowContext *  s  )  [static]

Definition at line 4121 of file snow.c.

static int get_4block_rd ( SnowContext *  s,
int  mb_x,
int  mb_y,
int  plane_index 
) [static]

Definition at line 2881 of file snow.c.

Referenced by check_4block_inter(), and iterative_me().

static int get_block_bits ( SnowContext *  s,
int  x,
int  y,
int  w 
) [inline, static]

Definition at line 2745 of file snow.c.

Referenced by get_4block_rd(), and get_block_rd().

static int get_block_rd ( SnowContext *  s,
int  mb_x,
int  mb_y,
int  plane_index,
const uint8_t *  obmc_edged 
) [static]

Definition at line 2783 of file snow.c.

Referenced by check_block().

static int get_dc ( SnowContext *  s,
int  mb_x,
int  mb_y,
int  plane_index 
) [static]

Definition at line 2690 of file snow.c.

static int get_symbol ( RangeCoder *  c,
uint8_t *  state,
int  is_signed 
) [inline, static]

Definition at line 657 of file snow.c.

static int get_symbol2 ( RangeCoder *  c,
uint8_t *  state,
int  log2 
) [inline, static]

Definition at line 699 of file snow.c.

Referenced by unpack_coeffs().

static void halfpel_interpol ( SnowContext *  s,
uint8_t *  halfpel[4][4],
AVFrame *  frame 
) [static]

Definition at line 4077 of file snow.c.

Referenced by frame_start().

static void horizontal_compose53i ( IDWTELEM *  b,
int  width 
) [static]

Definition at line 1021 of file snow.c.

Referenced by spatial_compose53i_dy(), and spatial_compose53i_dy_buffered().

static void horizontal_decompose53i ( DWTELEM *  b,
int  width 
) [static]

Definition at line 852 of file snow.c.

Referenced by spatial_decompose53i().

static void horizontal_decompose97i ( DWTELEM *  b,
int  width 
) [static]

Definition at line 937 of file snow.c.

Referenced by spatial_decompose97i().

static void init_qexp ( void   )  [static]

Definition at line 3642 of file snow.c.

Referenced by common_init().

static void init_ref ( MotionEstContext *  c,
uint8_t *  src[3],
uint8_t *  ref[3],
uint8_t *  ref2[3],
int  x,
int  y,
int  ref_index 
) [inline, static]

Definition at line 1699 of file snow.c.

static av_always_inline void inv_lift ( IDWTELEM *  dst,
IDWTELEM *  src,
IDWTELEM *  ref,
int  dst_step,
int  src_step,
int  ref_step,
int  width,
int  mul,
int  add,
int  shift,
int  highpass,
int  inverse 
) [static]

Definition at line 752 of file snow.c.

Referenced by ff_snow_horizontal_compose97i(), and horizontal_compose53i().

static av_always_inline void inv_liftS ( IDWTELEM *  dst,
IDWTELEM *  src,
IDWTELEM *  ref,
int  dst_step,
int  src_step,
int  ref_step,
int  width,
int  mul,
int  add,
int  shift,
int  highpass,
int  inverse 
) [static]

Definition at line 818 of file snow.c.

Referenced by ff_snow_horizontal_compose97i().

static void iterative_me ( SnowContext *  s  )  [static]

Definition at line 3029 of file snow.c.

Referenced by encode_blocks().

static av_always_inline void lift ( DWTELEM *  dst,
DWTELEM *  src,
DWTELEM *  ref,
int  dst_step,
int  src_step,
int  ref_step,
int  width,
int  mul,
int  add,
int  shift,
int  highpass,
int  inverse 
) [static]

Definition at line 720 of file snow.c.

Referenced by horizontal_decompose53i(), and horizontal_decompose97i().

static av_always_inline void liftS ( DWTELEM *  dst,
DWTELEM *  src,
DWTELEM *  ref,
int  dst_step,
int  src_step,
int  ref_step,
int  width,
int  mul,
int  add,
int  shift,
int  highpass,
int  inverse 
) [static]

Definition at line 785 of file snow.c.

static void mc_block ( Plane *  p,
uint8_t *  dst,
const uint8_t *  src,
uint8_t *  tmp,
int  stride,
int  b_w,
int  b_h,
int  dx,
int  dy 
) [static]

Definition at line 2106 of file snow.c.

Referenced by mca().

mca ( mca(  0,
mca(  0,
16   
)

Definition at line 2297 of file snow.c.

static int mirror ( int  v,
int  m 
) [inline, static]

Definition at line 588 of file snow.c.

Referenced by spatial_compose53i_buffered_init(), spatial_compose53i_dy(), spatial_compose53i_dy_buffered(), spatial_compose53i_init(), spatial_compose97i_buffered_init(), spatial_compose97i_dy(), spatial_compose97i_dy_buffered(), spatial_compose97i_init(), spatial_decompose53i(), and spatial_decompose97i().

static int pix_norm1 ( uint8_t *  pix,
int  line_size,
int  w 
) [static]

Definition at line 1659 of file snow.c.

Referenced by encode_q_branch().

static int pix_sum ( uint8_t *  pix,
int  line_size,
int  w 
) [static]

Definition at line 1643 of file snow.c.

Referenced by encode_q_branch().

static void pred_mv ( SnowContext *  s,
int *  mx,
int *  my,
int  ref,
const BlockNode *  left,
const BlockNode *  top,
const BlockNode *  tr 
) [inline, static]

Definition at line 1713 of file snow.c.

Referenced by decode_q_branch(), encode_q_branch(), encode_q_branch2(), and get_block_bits().

static av_always_inline void predict_plane ( SnowContext *  s,
IDWTELEM *  buf,
int  plane_index,
int  add 
) [static]

Definition at line 2683 of file snow.c.

Referenced by decode_frame(), and encode_frame().

static av_always_inline void predict_slice ( SnowContext *  s,
IDWTELEM *  buf,
int  plane_index,
int  add,
int  mb_y 
) [static]

Definition at line 2633 of file snow.c.

Referenced by predict_plane().

static av_always_inline void predict_slice_buffered ( SnowContext *  s,
slice_buffer *  sb,
IDWTELEM *  old_buffer,
int  plane_index,
int  add,
int  mb_y 
) [static]

Definition at line 2577 of file snow.c.

Referenced by decode_frame().

static void put_symbol ( RangeCoder *  c,
uint8_t *  state,
int  v,
int  is_signed 
) [inline, static]

Definition at line 596 of file snow.c.

static void put_symbol2 ( RangeCoder *  c,
uint8_t *  state,
int  v,
int  log2 
) [inline, static]

Definition at line 679 of file snow.c.

Referenced by encode_subband_c0run().

static int qscale2qlog ( int  qscale  )  [static]

Definition at line 3774 of file snow.c.

Referenced by encode_frame(), and ratecontrol_1pass().

static void quantize ( SnowContext *  s,
SubBand *  b,
IDWTELEM *  dst,
DWTELEM *  src,
int  stride,
int  bias 
) [static]

Definition at line 3253 of file snow.c.

Referenced by encode_frame().

static int ratecontrol_1pass ( SnowContext *  s,
AVFrame *  pict 
) [static]

Definition at line 3779 of file snow.c.

Referenced by encode_frame().

static void reset_contexts ( SnowContext *  s  )  [static]

Definition at line 1608 of file snow.c.

Referenced by decode_header(), and encode_header().

static av_always_inline int same_block ( BlockNode *  a,
BlockNode *  b 
) [static]

Definition at line 1961 of file snow.c.

Referenced by add_yblock(), encode_q_branch2(), get_4block_rd(), and iterative_me().

static void set_blocks ( SnowContext *  s,
int  level,
int  x,
int  y,
int  l,
int  cb,
int  cr,
int  mx,
int  my,
int  ref,
int  type 
) [inline, static]

Definition at line 1675 of file snow.c.

Referenced by decode_q_branch(), encode_q_branch(), and encode_q_branch2().

static void slice_buffer_destroy ( slice_buffer *  buf  )  [static]

Definition at line 569 of file snow.c.

Referenced by decode_end(), and decode_frame().

static void slice_buffer_flush ( slice_buffer *  buf  )  [static]

Definition at line 560 of file snow.c.

Referenced by decode_frame(), and slice_buffer_destroy().

static void slice_buffer_init ( slice_buffer *  buf,
int  line_count,
int  max_allocated_lines,
int  line_width,
IDWTELEM *  base_buffer 
) [static]

Definition at line 509 of file snow.c.

Referenced by decode_frame().

static IDWTELEM* slice_buffer_load_line ( slice_buffer *  buf,
int  line 
) [static]

Definition at line 527 of file snow.c.

static void slice_buffer_release ( slice_buffer *  buf,
int  line 
) [static]

Definition at line 545 of file snow.c.

Referenced by decode_frame(), and slice_buffer_flush().

static void av_unused spatial_compose53i ( IDWTELEM *  buffer,
int  width,
int  height,
int  stride 
) [static]

Definition at line 1133 of file snow.c.

static void spatial_compose53i_buffered_init ( DWTCompose *  cs,
slice_buffer *  sb,
int  height,
int  stride_line 
) [static]

Definition at line 1084 of file snow.c.

Referenced by ff_spatial_idwt_buffered_init().

static void spatial_compose53i_dy ( DWTCompose *  cs,
IDWTELEM *  buffer,
int  width,
int  height,
int  stride 
) [static]

Definition at line 1115 of file snow.c.

Referenced by ff_spatial_idwt_slice(), and spatial_compose53i().

static void spatial_compose53i_dy_buffered ( DWTCompose *  cs,
slice_buffer *  sb,
int  width,
int  height,
int  stride_line 
) [static]

Definition at line 1096 of file snow.c.

Referenced by ff_spatial_idwt_buffered_slice().

static void spatial_compose53i_init ( DWTCompose *  cs,
IDWTELEM *  buffer,
int  height,
int  stride 
) [static]

Definition at line 1090 of file snow.c.

Referenced by ff_spatial_idwt_init(), and spatial_compose53i().

static void av_unused spatial_compose97i ( IDWTELEM *  buffer,
int  width,
int  height,
int  stride 
) [static]

Definition at line 1271 of file snow.c.

static void spatial_compose97i_buffered_init ( DWTCompose *  cs,
slice_buffer *  sb,
int  height,
int  stride_line 
) [static]

Definition at line 1202 of file snow.c.

Referenced by ff_spatial_idwt_buffered_init().

static void spatial_compose97i_dy ( DWTCompose *  cs,
IDWTELEM *  buffer,
int  width,
int  height,
int  stride 
) [static]

Definition at line 1247 of file snow.c.

Referenced by ff_spatial_idwt_slice(), and spatial_compose97i().

static void spatial_compose97i_dy_buffered ( DSPContext *  dsp,
DWTCompose *  cs,
slice_buffer *  sb,
int  width,
int  height,
int  stride_line 
) [static]

Definition at line 1218 of file snow.c.

Referenced by ff_spatial_idwt_buffered_slice().

static void spatial_compose97i_init ( DWTCompose *  cs,
IDWTELEM *  buffer,
int  height,
int  stride 
) [static]

Definition at line 1210 of file snow.c.

Referenced by ff_spatial_idwt_init(), and spatial_compose97i().

static void spatial_decompose53i ( DWTELEM *  buffer,
int  width,
int  height,
int  stride 
) [static]

Definition at line 917 of file snow.c.

Referenced by ff_spatial_dwt().

static void spatial_decompose97i ( DWTELEM *  buffer,
int  width,
int  height,
int  stride 
) [static]

Definition at line 984 of file snow.c.

Referenced by ff_spatial_dwt().

static void unpack_coeffs ( SnowContext *  s,
SubBand *  b,
SubBand *  parent,
int  orientation 
) [inline, static]

Definition at line 1467 of file snow.c.

Referenced by decode_frame().

static void update_last_header_values ( SnowContext *  s  )  [static]

Definition at line 3521 of file snow.c.

Referenced by encode_frame().

static void vertical_compose53iH0 ( IDWTELEM *  b0,
IDWTELEM *  b1,
IDWTELEM *  b2,
int  width 
) [static]

Definition at line 1068 of file snow.c.

Referenced by spatial_compose53i_dy(), and spatial_compose53i_dy_buffered().

static void vertical_compose53iL0 ( IDWTELEM *  b0,
IDWTELEM *  b1,
IDWTELEM *  b2,
int  width 
) [static]

Definition at line 1076 of file snow.c.

Referenced by spatial_compose53i_dy(), and spatial_compose53i_dy_buffered().

static void vertical_compose97iH0 ( IDWTELEM *  b0,
IDWTELEM *  b1,
IDWTELEM *  b2,
int  width 
) [static]

Definition at line 1151 of file snow.c.

Referenced by spatial_compose97i_dy(), and spatial_compose97i_dy_buffered().

static void vertical_compose97iH1 ( IDWTELEM *  b0,
IDWTELEM *  b1,
IDWTELEM *  b2,
int  width 
) [static]

Definition at line 1159 of file snow.c.

Referenced by spatial_compose97i_dy(), and spatial_compose97i_dy_buffered().

static void vertical_compose97iL0 ( IDWTELEM *  b0,
IDWTELEM *  b1,
IDWTELEM *  b2,
int  width 
) [static]

Definition at line 1167 of file snow.c.

Referenced by spatial_compose97i_dy(), and spatial_compose97i_dy_buffered().

static void vertical_compose97iL1 ( IDWTELEM *  b0,
IDWTELEM *  b1,
IDWTELEM *  b2,
int  width 
) [static]

Definition at line 1179 of file snow.c.

Referenced by spatial_compose97i_dy(), and spatial_compose97i_dy_buffered().

static void vertical_decompose53iH0 ( DWTELEM *  b0,
DWTELEM *  b1,
DWTELEM *  b2,
int  width 
) [static]

Definition at line 901 of file snow.c.

Referenced by spatial_decompose53i().

static void vertical_decompose53iL0 ( DWTELEM *  b0,
DWTELEM *  b1,
DWTELEM *  b2,
int  width 
) [static]

Definition at line 909 of file snow.c.

Referenced by spatial_decompose53i().

static void vertical_decompose97iH0 ( DWTELEM *  b0,
DWTELEM *  b1,
DWTELEM *  b2,
int  width 
) [static]

Definition at line 948 of file snow.c.

Referenced by spatial_decompose97i().

static void vertical_decompose97iH1 ( DWTELEM *  b0,
DWTELEM *  b1,
DWTELEM *  b2,
int  width 
) [static]

Definition at line 956 of file snow.c.

Referenced by spatial_decompose97i().

static void vertical_decompose97iL0 ( DWTELEM *  b0,
DWTELEM *  b1,
DWTELEM *  b2,
int  width 
) [static]

Definition at line 964 of file snow.c.

Referenced by spatial_decompose97i().

static void vertical_decompose97iL1 ( DWTELEM *  b0,
DWTELEM *  b1,
DWTELEM *  b2,
int  width 
) [static]

Definition at line 976 of file snow.c.

Referenced by spatial_decompose97i().

Variable Documentation

const BlockNode null_block [static]

Initial value:

 { 
    .color= {128,128,128},
    .mx= 0,
    .my= 0,
    .ref= 0,
    .type= 0,
    .level= 0,
}

Definition at line 386 of file snow.c.

const uint8_t obmc16[256] [static]

Initial value:

{
  0,  4,  4,  8,  8, 12, 12, 16, 16, 12, 12,  8,  8,  4,  4,  0,
  4,  8, 16, 20, 28, 32, 40, 44, 44, 40, 32, 28, 20, 16,  8,  4,
  4, 16, 24, 36, 44, 56, 64, 76, 76, 64, 56, 44, 36, 24, 16,  4,
  8, 20, 36, 48, 64, 76, 92,104,104, 92, 76, 64, 48, 36, 20,  8,
  8, 28, 44, 64, 80,100,116,136,136,116,100, 80, 64, 44, 28,  8,
 12, 32, 56, 76,100,120,144,164,164,144,120,100, 76, 56, 32, 12,
 12, 40, 64, 92,116,144,168,196,196,168,144,116, 92, 64, 40, 12,
 16, 44, 76,104,136,164,196,224,224,196,164,136,104, 76, 44, 16,
 16, 44, 76,104,136,164,196,224,224,196,164,136,104, 76, 44, 16,
 12, 40, 64, 92,116,144,168,196,196,168,144,116, 92, 64, 40, 12,
 12, 32, 56, 76,100,120,144,164,164,144,120,100, 76, 56, 32, 12,
  8, 28, 44, 64, 80,100,116,136,136,116,100, 80, 64, 44, 28,  8,
  8, 20, 36, 48, 64, 76, 92,104,104, 92, 76, 64, 48, 36, 20,  8,
  4, 16, 24, 36, 44, 56, 64, 76, 76, 64, 56, 44, 36, 24, 16,  4,
  4,  8, 16, 20, 28, 32, 40, 44, 44, 40, 32, 28, 20, 16,  8,  4,
  0,  4,  4,  8,  8, 12, 12, 16, 16, 12, 12,  8,  8,  4,  4,  0,

}

Definition at line 269 of file snow.c.

const uint8_t obmc32[1024] [static]

Definition at line 234 of file snow.c.

const uint8_t obmc4[16] [static]

Initial value:

{
 16, 48, 48, 16,
 48,144,144, 48,
 48,144,144, 48,
 16, 48, 48, 16,

}

Definition at line 359 of file snow.c.

Referenced by add_yblock(), ff_snow_inner_add_yblock(), inner_add_yblock_a_bw_16_obmc_32_altivec(), inner_add_yblock_a_bw_8_obmc_16_altivec(), inner_add_yblock_bw_16_obmc_32_altivec(), and inner_add_yblock_bw_8_obmc_16_altivec().

const uint8_t obmc8[64] [static]

Initial value:

{
  4, 12, 20, 28, 28, 20, 12,  4,
 12, 36, 60, 84, 84, 60, 36, 12,
 20, 60,100,140,140,100, 60, 20,
 28, 84,140,196,196,140, 84, 28,
 28, 84,140,196,196,140, 84, 28,
 20, 60,100,140,140,100, 60, 20,
 12, 36, 60, 84, 84, 60, 36, 12,
  4, 12, 20, 28, 28, 20, 12,  4,

}

Definition at line 346 of file snow.c.

const uint8_t* const obmc_tab[4] [static]

Initial value:

{
    obmc32, obmc16, obmc8, obmc4
}

Definition at line 367 of file snow.c.

Referenced by get_4block_rd(), get_dc(), iterative_me(), predict_slice(), and predict_slice_buffered().

uint8_t qexp[QROOT] [static]

Definition at line 586 of file snow.c.

Referenced by common_init(), decode_subband_slice_buffered(), dequantize(), dequantize_slice_buffered(), init_qexp(), quantize(), and ratecontrol_1pass().

const int8_t quant11[256] [static]

Initial value:

{
 0, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4,
 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-4,-4,
-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
-4,-4,-4,-4,-4,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-1,
}

Definition at line 141 of file snow.c.

const int8_t quant13[256] [static]

Initial value:

{
 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4,
 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,
-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,
-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,
-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,
-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-6,-5,
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,-5,
-4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3,-2,-2,-1,
}

Definition at line 159 of file snow.c.

const int8_t quant3[256] [static]

Initial value:

{
 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, 0,
}

Definition at line 33 of file snow.c.

const int8_t quant3b[256] [static]

Initial value:

{
 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
}

Definition at line 51 of file snow.c.

const int8_t quant3bA[256] [static]

Initial value:

{
 0, 0, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1, 1,-1,
}

Definition at line 69 of file snow.c.

Referenced by encode_subband_c0run(), and unpack_coeffs().

const int8_t quant5[256] [static]

Initial value:

{
 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1,-1,
}

Definition at line 87 of file snow.c.

const int8_t quant7[256] [static]

Initial value:

{
 0, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3,
 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,
-3,-3,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,
-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1,
}

Definition at line 105 of file snow.c.

const int8_t quant9[256] [static]

Initial value:

{
 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3,
 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,
-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-3,-3,-3,-3,
-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-2,-2,-2,-2,-1,-1,
}

Definition at line 123 of file snow.c.

int scale_mv_ref[MAX_REF_FRAMES][MAX_REF_FRAMES] [static]

Definition at line 371 of file snow.c.

Referenced by common_init(), and pred_mv().

AVCodec snow_decoder

Initial value:

 {
    "snow",
    CODEC_TYPE_VIDEO,
    CODEC_ID_SNOW,
    sizeof(SnowContext),
    decode_init,
    NULL,
    decode_end,
    decode_frame,
    0  ,
    NULL,
    .long_name = NULL_IF_CONFIG_SMALL("Snow"),
}

Definition at line 4667 of file snow.c.

Generated on Fri Oct 26 02:35:44 2012 for FFmpeg by  doxygen 1.5.8