huffyuvenc.c File Reference

huffyuv encoder More...

#include "avcodec.h"
#include "huffyuv.h"
#include "huffman.h"
#include "internal.h"
#include "put_bits.h"
#include "libavutil/pixdesc.h"

Go to the source code of this file.

Macros
#define	STATS_OUT_SIZE   21*MAX_N*3 + 4
#define	LOAD4
#define	LOAD2
#define	LOAD2_14
#define	LOAD2_16
#define	STAT2
#define	STAT2_16
#define	WRITE2
#define	WRITE2_16
#define	LOAD2
#define	STAT2
#define	WRITE2
#define	LOAD_GBRA
#define	STAT_BGRA
#define	WRITE_GBRA

Functions
static void	diff_bytes (HYuvContext *s, uint8_t *dst, const uint8_t *src0, const uint8_t *src1, int w)
static int	sub_left_prediction (HYuvContext *s, uint8_t *dst, const uint8_t *src, int w, int left)
static void	sub_left_prediction_bgr32 (HYuvContext *s, uint8_t *dst, const 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 void	sub_median_prediction (HYuvContext *s, uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int w, int *left, int *left_top)
static int	store_table (HYuvContext *s, const uint8_t *len, uint8_t *buf)
static int	store_huffman_tables (HYuvContext *s, 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_plane_bitstream (HYuvContext *s, int count, int plane)
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 STATS_OUT_SIZE   21*MAX_N*3 + 4

#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(), and encode_plane_bitstream().

#define LOAD2_14

Value:

int y0 = s->temp16[0][2 * i] & mask;\
            int y1 = s->temp16[0][2 * i + 1] & mask;

Referenced by encode_plane_bitstream().

#define LOAD2_16

Value:

int y0 = s->temp16[0][2 * i];\
            int y1 = s->temp16[0][2 * i + 1];

Referenced by encode_plane_bitstream().

#define STAT2

Value:

s->stats[plane][y0]++;\
            s->stats[plane][y1]++;

Referenced by encode_gray_bitstream(), and encode_plane_bitstream().

#define STAT2_16

Value:

s->stats[plane][y0>>2]++;\
            s->stats[plane][y1>>2]++;

Referenced by encode_plane_bitstream().

#define WRITE2

Value:

put_bits(&s->pb, s->len[plane][y0], s->bits[plane][y0]);\
            put_bits(&s->pb, s->len[plane][y1], s->bits[plane][y1]);

Referenced by encode_gray_bitstream(), and encode_plane_bitstream().

#define WRITE2_16

Value:

put_bits(&s->pb, s->len[plane][y0>>2], s->bits[plane][y0>>2]);\
            put_bits(&s->pb, 2, y0&3);\
            put_bits(&s->pb, s->len[plane][y1>>2], s->bits[plane][y1>>2]);\
            put_bits(&s->pb, 2, y1&3);

Referenced by encode_plane_bitstream().

#define LOAD2

Value:

int y0 = s->temp[0][2 * i];\
            int y1 = s->temp[0][2 * i + 1];

#define STAT2

Value:

s->stats[0][y0]++;\
            s->stats[0][y1]++;

#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]);

#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];

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]++;

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]);

Referenced by encode_bgra_bitstream().

Function Documentation

static void diff_bytes ( HYuvContext *  s, uint8_t *  dst, const uint8_t *  src0, const uint8_t *  src1, int  w  )

inlinestatic

Definition at line 38 of file huffyuvenc.c.

Referenced by encode_frame().

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

inlinestatic

Definition at line 48 of file huffyuvenc.c.

Referenced by encode_frame().

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

inlinestatic

Definition at line 91 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 126 of file huffyuvenc.c.

Referenced by encode_frame().

static void sub_median_prediction ( HYuvContext *  s, uint8_t *  dst, const uint8_t *  src1, const uint8_t *  src2, int  w, int *  left, int *  left_top  )

static

Definition at line 154 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 163 of file huffyuvenc.c.

Referenced by store_huffman_tables().

static int store_huffman_tables ( HYuvContext *  s, uint8_t *  buf  )

static

Definition at line 188 of file huffyuvenc.c.

Referenced by encode_frame(), and encode_init().

static av_cold int encode_init ( AVCodecContext *  avctx )

static

Definition at line 210 of file huffyuvenc.c.

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

static

Definition at line 433 of file huffyuvenc.c.

Referenced by encode_frame().

static int encode_plane_bitstream ( HYuvContext *  s, int  count, int  plane  )

static

Definition at line 488 of file huffyuvenc.c.

Referenced by encode_frame().

static int encode_gray_bitstream ( HYuvContext *  s, int  count  )

static

Definition at line 597 of file huffyuvenc.c.

Referenced by encode_frame().

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

inlinestatic

Definition at line 642 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 693 of file huffyuvenc.c.

static av_cold int encode_end ( AVCodecContext *  avctx )

static

Definition at line 977 of file huffyuvenc.c.