Libav
Macros | Functions
huffyuvenc.c File Reference

huffyuv encoder More...

#include "avcodec.h"
#include "huffyuv.h"
#include "huffman.h"
#include "put_bits.h"

Go to the source code of this file.

Macros

#define LOAD4
 
#define LOAD2
 
#define STAT2
 
#define WRITE2
 
#define LOAD_GBRA
 
#define STAT_BGRA
 
#define WRITE_GBRA
 

Functions

static int sub_left_prediction (HYuvContext *s, uint8_t *dst, uint8_t *src, int w, int left)
 
static void sub_left_prediction_bgr32 (HYuvContext *s, uint8_t *dst, uint8_t *src, int w, int *red, int *green, int *blue, int *alpha)
 
static void sub_left_prediction_rgb24 (HYuvContext *s, uint8_t *dst, uint8_t *src, int w, int *red, int *green, int *blue)
 
static int store_table (HYuvContext *s, const uint8_t *len, uint8_t *buf)
 
static av_cold int encode_init (AVCodecContext *avctx)
 
static int encode_422_bitstream (HYuvContext *s, int offset, int count)
 
static int encode_gray_bitstream (HYuvContext *s, int count)
 
static int encode_bgra_bitstream (HYuvContext *s, int count, int planes)
 
static int encode_frame (AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
 
static av_cold int encode_end (AVCodecContext *avctx)
 

Detailed Description

huffyuv encoder

Definition in file huffyuvenc.c.

Macro Definition Documentation

#define LOAD4
Value:
int y0 = y[2 * i];\
int y1 = y[2 * i + 1];\
int u0 = u[i];\
int v0 = v[i];

Referenced by encode_422_bitstream().

#define LOAD2
Value:
int y0 = s->temp[0][2 * i];\
int y1 = s->temp[0][2 * i + 1];

Referenced by encode_gray_bitstream().

#define STAT2
Value:
s->stats[0][y0]++;\
s->stats[0][y1]++;

Referenced by encode_gray_bitstream().

#define WRITE2
Value:
put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);\
put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]);
static void put_bits(PutBitContext *s, int n, unsigned int value)
Write up to 31 bits into a bitstream.
Definition: put_bits.h:139

Referenced by encode_gray_bitstream().

#define LOAD_GBRA
Value:
int g = s->temp[0][planes == 3 ? 3 * i + 1 : 4 * i + G]; \
int b = s->temp[0][planes == 3 ? 3 * i + 2 : 4 * i + B] - g & 0xFF; \
int r = s->temp[0][planes == 3 ? 3 * i + 0 : 4 * i + R] - g & 0xFF; \
int a = s->temp[0][planes * i + A];
#define B
Definition: dsputil.c:1836
#define b
Definition: input.c:52
#define R
Definition: dsputil.c:1838
#define r
Definition: input.c:51
g
Definition: yuv2rgb.c:535
Definition: vf_drawbox.c:37
#define G
Definition: dsputil.c:1837

Referenced by encode_bgra_bitstream().

#define STAT_BGRA
Value:
s->stats[0][b]++; \
s->stats[1][g]++; \
s->stats[2][r]++; \
if (planes == 4) \
s->stats[2][a]++;
#define b
Definition: input.c:52
#define r
Definition: input.c:51
g
Definition: yuv2rgb.c:535
if(ac->has_optimized_func)

Referenced by encode_bgra_bitstream().

#define WRITE_GBRA
Value:
put_bits(&s->pb, s->len[1][g], s->bits[1][g]); \
put_bits(&s->pb, s->len[0][b], s->bits[0][b]); \
put_bits(&s->pb, s->len[2][r], s->bits[2][r]); \
if (planes == 4) \
put_bits(&s->pb, s->len[2][a], s->bits[2][a]);
#define b
Definition: input.c:52
#define r
Definition: input.c:51
g
Definition: yuv2rgb.c:535
static void put_bits(PutBitContext *s, int n, unsigned int value)
Write up to 31 bits into a bitstream.
Definition: put_bits.h:139
if(ac->has_optimized_func)

Referenced by encode_bgra_bitstream().

Function Documentation

static int sub_left_prediction ( HYuvContext s,
uint8_t dst,
uint8_t src,
int  w,
int  left 
)
inlinestatic

Definition at line 34 of file huffyuvenc.c.

Referenced by encode_frame().

static void sub_left_prediction_bgr32 ( HYuvContext s,
uint8_t dst,
uint8_t src,
int  w,
int *  red,
int *  green,
int *  blue,
int *  alpha 
)
inlinestatic

Definition at line 56 of file huffyuvenc.c.

Referenced by encode_frame().

static void sub_left_prediction_rgb24 ( HYuvContext s,
uint8_t dst,
uint8_t src,
int  w,
int *  red,
int *  green,
int *  blue 
)
inlinestatic

Definition at line 91 of file huffyuvenc.c.

Referenced by encode_frame().

static int store_table ( HYuvContext s,
const uint8_t len,
uint8_t buf 
)
static

Definition at line 119 of file huffyuvenc.c.

Referenced by encode_frame(), and encode_init().

static av_cold int encode_init ( AVCodecContext avctx)
static

Definition at line 143 of file huffyuvenc.c.

static int encode_422_bitstream ( HYuvContext s,
int  offset,
int  count 
)
static

Definition at line 285 of file huffyuvenc.c.

Referenced by encode_frame().

static int encode_gray_bitstream ( HYuvContext s,
int  count 
)
static

Definition at line 340 of file huffyuvenc.c.

Referenced by encode_frame().

static int encode_bgra_bitstream ( HYuvContext s,
int  count,
int  planes 
)
inlinestatic

Definition at line 385 of file huffyuvenc.c.

Referenced by encode_frame().

static int encode_frame ( AVCodecContext avctx,
AVPacket pkt,
const AVFrame pict,
int *  got_packet 
)
static

Definition at line 436 of file huffyuvenc.c.

static av_cold int encode_end ( AVCodecContext avctx)
static

Definition at line 671 of file huffyuvenc.c.