FFmpeg  4.4.4
Macros | Functions | Variables
huffyuvenc.c File Reference

huffyuv encoder More...

#include "avcodec.h"
#include "huffyuv.h"
#include "huffman.h"
#include "huffyuvencdsp.h"
#include "internal.h"
#include "lossless_videoencdsp.h"
#include "put_bits.h"
#include "libavutil/opt.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 LOADEND    int y0 = s->temp[0][width-1];
 
#define LOADEND_14    int y0 = s->temp16[0][width-1] & mask;
 
#define LOADEND_16    int y0 = s->temp16[0][width-1];
 
#define STATEND    s->stats[plane][y0]++;
 
#define STATEND_16    s->stats[plane][y0>>2]++;
 
#define WRITEEND    put_bits(&s->pb, s->len[plane][y0], s->bits[plane][y0]);
 
#define WRITEEND_16
 
#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
 
#define OFFSET(x)   offsetof(HYuvContext, x)
 
#define VE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
 
#define COMMON_OPTIONS
 

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 width, 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)
 

Variables

static const AVOption normal_options []
 
static const AVOption ff_options []
 
static const AVClass normal_class
 
static const AVClass ff_class
 
AVCodec ff_huffyuv_encoder
 

Detailed Description

huffyuv encoder

Definition in file huffyuvenc.c.

Macro Definition Documentation

◆ STATS_OUT_SIZE

#define STATS_OUT_SIZE   21*MAX_N*3 + 4

◆ LOAD4

#define LOAD4
Value:
int y0 = y[2 * i];\
int y1 = y[2 * i + 1];\
int u0 = u[i];\
int v0 = v[i];
#define u(width, name, range_min, range_max)
Definition: cbs_h2645.c:264
int i
Definition: input.c:407
#define v0
Definition: regdef.h:26

◆ LOADEND

#define LOADEND    int y0 = s->temp[0][width-1];

◆ LOADEND_14

#define LOADEND_14    int y0 = s->temp16[0][width-1] & mask;

◆ LOADEND_16

#define LOADEND_16    int y0 = s->temp16[0][width-1];

◆ STATEND

#define STATEND    s->stats[plane][y0]++;

◆ STATEND_16

#define STATEND_16    s->stats[plane][y0>>2]++;

◆ WRITEEND

#define WRITEEND    put_bits(&s->pb, s->len[plane][y0], s->bits[plane][y0]);

◆ WRITEEND_16

#define WRITEEND_16
Value:
put_bits(&s->pb, s->len[plane][y0>>2], s->bits[plane][y0>>2]);\
put_bits(&s->pb, 2, y0&3);
#define s(width, name)
Definition: cbs_vp9.c:257
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
Definition: j2kenc.c:218

◆ LOAD2 [1/2]

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

◆ LOAD2_14

#define LOAD2_14
Value:
int y0 = s->temp16[0][2 * i] & mask;\
int y1 = s->temp16[0][2 * i + 1] & mask;
static const uint16_t mask[17]
Definition: lzw.c:38

◆ LOAD2_16

#define LOAD2_16
Value:
int y0 = s->temp16[0][2 * i];\
int y1 = s->temp16[0][2 * i + 1];

◆ STAT2 [1/2]

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

◆ STAT2_16

#define STAT2_16
Value:
s->stats[plane][y0>>2]++;\
s->stats[plane][y1>>2]++;

◆ WRITE2 [1/2]

#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]);

◆ WRITE2_16

#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);

◆ LOAD2 [2/2]

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

◆ STAT2 [2/2]

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

◆ WRITE2 [2/2]

#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]);

◆ LOAD_GBRA

#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 A(x)
Definition: vp56_arith.h:28
#define B
Definition: huffyuvdsp.h:32
#define R
Definition: huffyuvdsp.h:34
#define G
Definition: huffyuvdsp.h:33
static const struct @322 planes[]
const char * b
Definition: vf_curves.c:118
const char * g
Definition: vf_curves.c:117
const char * r
Definition: vf_curves.c:116

◆ STAT_BGRA

#define STAT_BGRA
Value:
s->stats[0][b]++; \
s->stats[1][g]++; \
s->stats[2][r]++; \
if (planes == 4) \
s->stats[2][a]++;

◆ WRITE_GBRA

#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]);

◆ OFFSET

#define OFFSET (   x)    offsetof(HYuvContext, x)

Definition at line 1048 of file huffyuvenc.c.

◆ VE

Definition at line 1049 of file huffyuvenc.c.

◆ COMMON_OPTIONS

#define COMMON_OPTIONS
Value:
{ "non_deterministic", "Allow multithreading for e.g. context=1 at the expense of determinism", \
OFFSET(non_determ), AV_OPT_TYPE_BOOL, { .i64 = 1 }, \
0, 1, VE }, \
{ "pred", "Prediction method", OFFSET(predictor), AV_OPT_TYPE_INT, { .i64 = LEFT }, LEFT, MEDIAN, VE, "pred" }, \
{ "left", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LEFT }, INT_MIN, INT_MAX, VE, "pred" }, \
{ "plane", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PLANE }, INT_MIN, INT_MAX, VE, "pred" }, \
{ "median", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MEDIAN }, INT_MIN, INT_MAX, VE, "pred" }, \
#define LEFT
Definition: cdgraphics.c:166
#define NULL
Definition: coverity.c:32
static void predictor(uint8_t *src, ptrdiff_t size)
Definition: exrenc.c:163
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
@ AV_OPT_TYPE_INT
Definition: opt.h:225
@ AV_OPT_TYPE_BOOL
Definition: opt.h:242
@ PLANE
Definition: huffyuv.h:51
@ MEDIAN
Definition: huffyuv.h:52
#define VE
Definition: huffyuvenc.c:1049
#define OFFSET(x)
Definition: huffyuvenc.c:1048

Definition at line 1051 of file huffyuvenc.c.

Function Documentation

◆ diff_bytes()

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

Definition at line 41 of file huffyuvenc.c.

Referenced by encode_frame().

◆ sub_left_prediction()

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

Definition at line 51 of file huffyuvenc.c.

Referenced by encode_frame().

◆ sub_left_prediction_bgr32()

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 82 of file huffyuvenc.c.

Referenced by encode_frame().

◆ sub_left_prediction_rgb24()

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 118 of file huffyuvenc.c.

Referenced by encode_frame().

◆ sub_median_prediction()

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 146 of file huffyuvenc.c.

Referenced by encode_frame().

◆ store_table()

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

Definition at line 155 of file huffyuvenc.c.

Referenced by store_huffman_tables().

◆ store_huffman_tables()

static int store_huffman_tables ( HYuvContext s,
uint8_t buf 
)
static

Definition at line 180 of file huffyuvenc.c.

Referenced by encode_frame(), and encode_init().

◆ encode_init()

static av_cold int encode_init ( AVCodecContext avctx)
static

Definition at line 202 of file huffyuvenc.c.

◆ encode_422_bitstream()

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

Definition at line 439 of file huffyuvenc.c.

Referenced by encode_frame().

◆ encode_plane_bitstream()

static int encode_plane_bitstream ( HYuvContext s,
int  width,
int  plane 
)
static

Definition at line 494 of file huffyuvenc.c.

Referenced by encode_frame().

◆ encode_gray_bitstream()

static int encode_gray_bitstream ( HYuvContext s,
int  count 
)
static

Definition at line 656 of file huffyuvenc.c.

Referenced by encode_frame().

◆ encode_bgra_bitstream()

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

Definition at line 701 of file huffyuvenc.c.

Referenced by encode_frame().

◆ encode_frame()

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

Definition at line 752 of file huffyuvenc.c.

◆ encode_end()

static av_cold int encode_end ( AVCodecContext avctx)
static

Definition at line 1036 of file huffyuvenc.c.

Variable Documentation

◆ normal_options

const AVOption normal_options[]
static
Initial value:
= {
{ NULL },
}
#define COMMON_OPTIONS
Definition: huffyuvenc.c:1051

Definition at line 1060 of file huffyuvenc.c.

◆ ff_options

const AVOption ff_options[]
static
Initial value:
= {
{ "context", "Set per-frame huffman tables", OFFSET(context), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
{ NULL },
}

Definition at line 1065 of file huffyuvenc.c.

◆ normal_class

const AVClass normal_class
static
Initial value:
= {
.class_name = "huffyuv",
.item_name = av_default_item_name,
.option = normal_options,
}
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
static const AVOption normal_options[]
Definition: huffyuvenc.c:1060

Definition at line 1071 of file huffyuvenc.c.

◆ ff_class

const AVClass ff_class
static
Initial value:
= {
.class_name = "ffvhuff",
.item_name = av_default_item_name,
.option = ff_options,
}
static const AVOption ff_options[]
Definition: huffyuvenc.c:1065

Definition at line 1078 of file huffyuvenc.c.

◆ ff_huffyuv_encoder

AVCodec ff_huffyuv_encoder
Initial value:
= {
.name = "huffyuv",
.long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"),
.priv_data_size = sizeof(HYuvContext),
.encode2 = encode_frame,
.close = encode_end,
.capabilities = AV_CODEC_CAP_FRAME_THREADS,
.priv_class = &normal_class,
.pix_fmts = (const enum AVPixelFormat[]){
},
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
}
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:108
@ AV_CODEC_ID_HUFFYUV
Definition: codec_id.h:74
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
static av_cold int encode_init(AVCodecContext *avctx)
Definition: huffyuvenc.c:202
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
Definition: huffyuvenc.c:752
static const AVClass normal_class
Definition: huffyuvenc.c:1071
static av_cold int encode_end(AVCodecContext *avctx)
Definition: huffyuvenc.c:1036
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:41
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:49
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:309
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
#define AV_PIX_FMT_RGB32
Definition: pixfmt.h:372

Definition at line 1085 of file huffyuvenc.c.