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ffv1enc.c File Reference

FF Video Codec 1 (a lossless codec) encoder. More...

#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "libavutil/crc.h"
#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/timer.h"
#include "avcodec.h"
#include "internal.h"
#include "put_bits.h"
#include "rangecoder.h"
#include "golomb.h"
#include "mathops.h"
#include "ffv1.h"
#include "ffv1enc_template.c"

Go to the source code of this file.

Macros

#define put_rac(C, S, B)
 
#define TYPE   int16_t
 
#define RENAME(name)   name
 
#define TYPE   int32_t
 
#define RENAME(name)   name ## 32
 
#define COST(old, new)
 
#define COST2(old, new)   COST(old, new) + COST(256 - (old), 256 - (new))
 
#define STATS_OUT_SIZE   1024 * 1024 * 6
 
#define NB_Y_COEFF   15
 
#define OFFSET(x)   offsetof(FFV1Context, x)
 
#define VE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
 

Functions

static void find_best_state (uint8_t best_state[256][256], const uint8_t one_state[256])
 
static av_always_inline
av_flatten void 
put_symbol_inline (RangeCoder *c, uint8_t *state, int v, int is_signed, uint64_t rc_stat[256][2], uint64_t rc_stat2[32][2])
 
static av_noinline void put_symbol (RangeCoder *c, uint8_t *state, int v, int is_signed)
 
static void put_vlc_symbol (PutBitContext *pb, VlcState *const state, int v, int bits)
 
static int encode_plane (FFV1Context *s, uint8_t *src, int w, int h, int stride, int plane_index, int pixel_stride)
 
static void write_quant_table (RangeCoder *c, int16_t *quant_table)
 
static void write_quant_tables (RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][256])
 
static void write_header (FFV1Context *f)
 
static int write_extradata (FFV1Context *f)
 
static int sort_stt (FFV1Context *s, uint8_t stt[256])
 
static av_cold int encode_init (AVCodecContext *avctx)
 
static void encode_slice_header (FFV1Context *f, FFV1Context *fs)
 
static void choose_rct_params (FFV1Context *fs, const uint8_t *src[3], const int stride[3], int w, int h)
 
static int encode_slice (AVCodecContext *c, void *arg)
 
static int encode_frame (AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
 
static av_cold int encode_close (AVCodecContext *avctx)
 

Variables

static const int8_t quant5_10bit [256]
 
static const int8_t quant5 [256]
 
static const int8_t quant9_10bit [256]
 
static const int8_t quant11 [256]
 
static const uint8_t ver2_state [256]
 
static const AVOption options []
 
static const AVClass ffv1_class
 
static const AVCodecDefault ffv1_defaults []
 
AVCodec ff_ffv1_encoder
 

Detailed Description

FF Video Codec 1 (a lossless codec) encoder.

Definition in file ffv1enc.c.

Macro Definition Documentation

#define put_rac (   C,
  S,
  B 
)
Value:
do { \
if (rc_stat) { \
rc_stat[*(S)][B]++; \
rc_stat2[(S) - state][B]++; \
} \
put_rac(C, S, B); \
} while (0)
#define C
Definition: vf_geq.c:46
#define S(s, c, i)
static struct @244 state
if(ret< 0)
Definition: vf_mcdeint.c:282
#define put_rac(C, S, B)

Referenced by encode_frame(), encode_header(), encode_line_TMPL(), encode_q_branch(), encode_q_branch2(), encode_slice(), encode_slice_header(), encode_subband_c0run(), main(), put_symbol(), put_symbol2(), put_symbol_inline(), write_extradata(), and write_header().

#define TYPE   int16_t

Definition at line 277 of file ffv1enc.c.

#define RENAME (   name)    name

Definition at line 278 of file ffv1enc.c.

#define TYPE   int32_t

Definition at line 277 of file ffv1enc.c.

#define RENAME (   name)    name ## 32

Definition at line 278 of file ffv1enc.c.

#define COST (   old,
  new 
)
Value:
s->rc_stat[old][0] * -log2((256 - (new)) / 256.0) + \
s->rc_stat[old][1] * -log2((new) / 256.0)
const char * s
Definition: avisynth_c.h:768
#define log2(x)
Definition: libm.h:404
#define COST2 (   old,
  new 
)    COST(old, new) + COST(256 - (old), 256 - (new))

Referenced by sort_stt().

#define STATS_OUT_SIZE   1024 * 1024 * 6

Referenced by encode_frame(), and encode_init().

#define NB_Y_COEFF   15

Referenced by choose_rct_params().

#define OFFSET (   x)    offsetof(FFV1Context, x)

Definition at line 1244 of file ffv1enc.c.

Definition at line 1245 of file ffv1enc.c.

Function Documentation

static void find_best_state ( uint8_t  best_state[256][256],
const uint8_t  one_state[256] 
)
static

Definition at line 139 of file ffv1enc.c.

Referenced by encode_init().

static av_always_inline av_flatten void put_symbol_inline ( RangeCoder c,
uint8_t state,
int  v,
int  is_signed,
uint64_t  rc_stat[256][2],
uint64_t  rc_stat2[32][2] 
)
static

Definition at line 185 of file ffv1enc.c.

Referenced by encode_line_TMPL(), and put_symbol().

static av_noinline void put_symbol ( RangeCoder c,
uint8_t state,
int  v,
int  is_signed 
)
static
static void put_vlc_symbol ( PutBitContext pb,
VlcState *const  state,
int  v,
int  bits 
)
inlinestatic

Definition at line 240 of file ffv1enc.c.

Referenced by encode_line_TMPL().

static int encode_plane ( FFV1Context s,
uint8_t src,
int  w,
int  h,
int  stride,
int  plane_index,
int  pixel_stride 
)
static

Definition at line 281 of file ffv1enc.c.

static void write_quant_table ( RangeCoder c,
int16_t *  quant_table 
)
static

Definition at line 321 of file ffv1enc.c.

Referenced by write_quant_tables().

static void write_quant_tables ( RangeCoder c,
int16_t  quant_table[MAX_CONTEXT_INPUTS][256] 
)
static

Definition at line 336 of file ffv1enc.c.

Referenced by write_extradata(), and write_header().

static void write_header ( FFV1Context f)
static

Definition at line 344 of file ffv1enc.c.

Referenced by encode_frame().

static int write_extradata ( FFV1Context f)
static

Definition at line 391 of file ffv1enc.c.

Referenced by encode_init().

static int sort_stt ( FFV1Context s,
uint8_t  stt[256] 
)
static

Definition at line 467 of file ffv1enc.c.

Referenced by encode_init().

static av_cold int encode_init ( AVCodecContext avctx)
static

Definition at line 515 of file ffv1enc.c.

static void encode_slice_header ( FFV1Context f,
FFV1Context fs 
)
static

Definition at line 892 of file ffv1enc.c.

Referenced by encode_slice().

static void choose_rct_params ( FFV1Context fs,
const uint8_t src[3],
const int  stride[3],
int  w,
int  h 
)
static

Definition at line 925 of file ffv1enc.c.

Referenced by encode_slice().

static int encode_slice ( AVCodecContext c,
void arg 
)
static

Definition at line 1007 of file ffv1enc.c.

Referenced by encode_frame().

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

Definition at line 1085 of file ffv1enc.c.

static av_cold int encode_close ( AVCodecContext avctx)
static

Definition at line 1238 of file ffv1enc.c.

Variable Documentation

const int8_t quant5_10bit[256]
static
Initial value:
= {
0, 0, 0, 0, 0, 0, 0, 0, 0, 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, 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, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -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, -0, -0, -0, -0, -0, -0, -0, -0, -0,
}

Definition at line 44 of file ffv1enc.c.

Referenced by encode_init().

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 63 of file ffv1enc.c.

Referenced by encode_init().

const int8_t quant9_10bit[256]
static
Initial value:
= {
0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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, -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, -1, -1, -1, -1, -1, -1, -1, -1, -0, -0, -0, -0,
}

Definition at line 82 of file ffv1enc.c.

Referenced by encode_init().

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 101 of file ffv1enc.c.

Referenced by encode_init().

const uint8_t ver2_state[256]
static
Initial value:
= {
0, 10, 10, 10, 10, 16, 16, 16, 28, 16, 16, 29, 42, 49, 20, 49,
59, 25, 26, 26, 27, 31, 33, 33, 33, 34, 34, 37, 67, 38, 39, 39,
40, 40, 41, 79, 43, 44, 45, 45, 48, 48, 64, 50, 51, 52, 88, 52,
53, 74, 55, 57, 58, 58, 74, 60, 101, 61, 62, 84, 66, 66, 68, 69,
87, 82, 71, 97, 73, 73, 82, 75, 111, 77, 94, 78, 87, 81, 83, 97,
85, 83, 94, 86, 99, 89, 90, 99, 111, 92, 93, 134, 95, 98, 105, 98,
105, 110, 102, 108, 102, 118, 103, 106, 106, 113, 109, 112, 114, 112, 116, 125,
115, 116, 117, 117, 126, 119, 125, 121, 121, 123, 145, 124, 126, 131, 127, 129,
165, 130, 132, 138, 133, 135, 145, 136, 137, 139, 146, 141, 143, 142, 144, 148,
147, 155, 151, 149, 151, 150, 152, 157, 153, 154, 156, 168, 158, 162, 161, 160,
172, 163, 169, 164, 166, 184, 167, 170, 177, 174, 171, 173, 182, 176, 180, 178,
175, 189, 179, 181, 186, 183, 192, 185, 200, 187, 191, 188, 190, 197, 193, 196,
197, 194, 195, 196, 198, 202, 199, 201, 210, 203, 207, 204, 205, 206, 208, 214,
209, 211, 221, 212, 213, 215, 224, 216, 217, 218, 219, 220, 222, 228, 223, 225,
226, 224, 227, 229, 240, 230, 231, 232, 233, 234, 235, 236, 238, 239, 237, 242,
241, 243, 242, 244, 245, 246, 247, 248, 249, 250, 251, 252, 252, 253, 254, 255,
}

Definition at line 120 of file ffv1enc.c.

Referenced by encode_init().

const AVOption options[]
static
Initial value:
= {
{ "slicecrc", "Protect slices with CRCs", OFFSET(ec), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
{ "coder", "Coder type", OFFSET(ac), AV_OPT_TYPE_INT,
{ .i64 = 0 }, -2, 2, VE, "coder" },
{ "rice", "Golomb rice", 0, AV_OPT_TYPE_CONST,
{ .i64 = AC_GOLOMB_RICE }, INT_MIN, INT_MAX, VE, "coder" },
{ "range_def", "Range with default table", 0, AV_OPT_TYPE_CONST,
{ .i64 = AC_RANGE_DEFAULT_TAB_FORCE }, INT_MIN, INT_MAX, VE, "coder" },
{ "range_tab", "Range with custom table", 0, AV_OPT_TYPE_CONST,
{ .i64 = AC_RANGE_CUSTOM_TAB }, INT_MIN, INT_MAX, VE, "coder" },
{ "ac", "Range with custom table (the ac option exists for compatibility and is deprecated)", 0, AV_OPT_TYPE_CONST,
{ .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
{ "context", "Context model", OFFSET(context_model), AV_OPT_TYPE_INT,
{ .i64 = 0 }, 0, 1, VE },
{ NULL }
}
#define NULL
Definition: coverity.c:32
#define AC_RANGE_CUSTOM_TAB
Definition: ffv1.h:58
#define VE
Definition: ffv1enc.c:1245
#define AC_RANGE_DEFAULT_TAB_FORCE
Definition: ffv1.h:59
#define AC_GOLOMB_RICE
Definition: ffv1.h:56
#define OFFSET(x)
Definition: ffv1enc.c:1244

Definition at line 1246 of file ffv1enc.c.

const AVClass ffv1_class
static
Initial value:
= {
.class_name = "ffv1 encoder",
.item_name = av_default_item_name,
.option = options,
}
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
av_default_item_name
static const AVOption options[]
Definition: ffv1enc.c:1246

Definition at line 1264 of file ffv1enc.c.

const AVCodecDefault ffv1_defaults[]
static
Initial value:
= {
{ "coder", "-1" },
{ NULL },
}
#define NULL
Definition: coverity.c:32

Definition at line 1272 of file ffv1enc.c.

AVCodec ff_ffv1_encoder

Definition at line 1278 of file ffv1enc.c.