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Linshizhi
ffmpeg.wasm-core
Commits
c47e20e6
Commit
c47e20e6
authored
Nov 27, 2007
by
Diego Biurrun
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spelling cosmetics
Originally committed as revision 11097 to
svn://svn.ffmpeg.org/ffmpeg/trunk
parent
93115b82
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4 changed files
with
38 additions
and
38 deletions
+38
-38
rv30data.h
libavcodec/rv30data.h
+8
-8
rv34data.h
libavcodec/rv34data.h
+16
-16
rv40data.h
libavcodec/rv40data.h
+9
-9
rv40vlc2.h
libavcodec/rv40vlc2.h
+5
-5
No files found.
libavcodec/rv30data.h
View file @
c47e20e6
...
...
@@ -21,7 +21,7 @@
/**
* @file rv30data.h
*
Miscellaneous RV30 tables.
*
miscellaneous RV30 tables
*/
#ifndef FFMPEG_RV30DATA_H
...
...
@@ -36,8 +36,8 @@ static const uint8_t rv30_luma_dc_quant[32] = {
};
/**
* This table is used for storing differences
* between
predicted and
real intra type.
* This table is used for storing
the
differences
* between
the predicted and the
real intra type.
*/
static
const
uint8_t
rv30_itype_code
[
9
*
9
*
2
]
=
{
0
,
0
,
0
,
1
,
1
,
0
,
1
,
1
,
0
,
2
,
2
,
0
,
0
,
3
,
3
,
0
,
1
,
2
,
...
...
@@ -52,13 +52,13 @@ static const uint8_t rv30_itype_code[9*9*2] = {
};
/**
* This table is used for retrieving current intra type
* bas
ing on its neighbou
rs and adjustment provided by
* This table is used for retrieving
the
current intra type
* bas
ed on its neighbo
rs and adjustment provided by
* code read and decoded before.
*
* This is really three-dimensional matrix with dimensions
* [-1..9][-1..9][0..9]
, first and second coordinates
*
are detemined by top and left neighbou
rs (-1 if unavailable).
* This is really
a
three-dimensional matrix with dimensions
* [-1..9][-1..9][0..9]
. The first and second coordinates are
*
detemined by the top and left neighbo
rs (-1 if unavailable).
*/
static
const
uint8_t
rv30_itype_from_context
[
900
]
=
{
0
,
9
,
9
,
9
,
9
,
9
,
9
,
9
,
9
,
...
...
libavcodec/rv34data.h
View file @
c47e20e6
...
...
@@ -21,7 +21,7 @@
/**
* @file rv34data.h
*
Miscellaneous RV30/40 tables.
*
miscellaneous RV30/40 tables
*/
#ifndef FFMPEG_RV34DATA_H
...
...
@@ -30,14 +30,14 @@
#include <stdint.h>
/**
*
N
umber of ones in nibble minus one
*
n
umber of ones in nibble minus one
*/
static
const
uint8_t
rv34_count_ones
[
16
]
=
{
0
,
0
,
0
,
1
,
0
,
1
,
1
,
2
,
0
,
1
,
1
,
2
,
1
,
2
,
2
,
3
};
/**
* Values used to reconstruct coded block pattern
* Values used to reconstruct coded block pattern
.
*/
static
const
uint8_t
rv34_cbp_code
[
16
]
=
{
0x00
,
0x20
,
0x10
,
0x30
,
0x02
,
0x22
,
0x12
,
0x32
,
...
...
@@ -45,10 +45,10 @@ static const uint8_t rv34_cbp_code[16] = {
};
/**
*
P
recalculated results of division by three and modulo three for values 0-107
*
p
recalculated results of division by three and modulo three for values 0-107
*
* A lot of four-tuples in RV40 are represented as c0*27+c1*9+c2*3+c3
* This table allows conversion from
value back to vector
* A lot of four-tuples in RV40 are represented as c0*27+c1*9+c2*3+c3
.
* This table allows conversion from
a value back to a vector.
*/
static
const
uint8_t
modulo_three_table
[
108
][
4
]
=
{
{
0
,
0
,
0
,
0
},
{
0
,
0
,
0
,
1
},
{
0
,
0
,
0
,
2
},
{
0
,
0
,
1
,
0
},
...
...
@@ -81,7 +81,7 @@ static const uint8_t modulo_three_table[108][4] = {
};
/**
*
Q
uantizer values used for AC and DC coefficients in chroma blocks
*
q
uantizer values used for AC and DC coefficients in chroma blocks
*/
static
const
uint8_t
rv34_chroma_quant
[
2
][
32
]
=
{
{
0
,
1
,
2
,
3
,
4
,
5
,
6
,
7
,
8
,
9
,
10
,
11
,
12
,
13
,
14
,
15
,
...
...
@@ -91,7 +91,7 @@ static const uint8_t rv34_chroma_quant[2][32] = {
};
/**
* This table is used for dequantizing
* This table is used for dequantizing
.
*/
static
const
uint16_t
rv34_qscale_tab
[
32
]
=
{
60
,
67
,
76
,
85
,
96
,
108
,
121
,
136
,
...
...
@@ -111,8 +111,8 @@ static const uint8_t rv34_dezigzag[16] = {
};
/**
*
Tables used to translate quantizer value into
VLC set for decoding
*
F
irst table is used for intraframes.
*
tables used to translate a quantizer value into a
VLC set for decoding
*
The f
irst table is used for intraframes.
*/
static
const
uint8_t
rv34_quant_to_vlc_set
[
2
][
31
]
=
{
{
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0
,
1
,
1
,
1
,
1
,
1
,
1
,
...
...
@@ -122,8 +122,8 @@ static const uint8_t rv34_quant_to_vlc_set[2][31] = {
};
/**
*
Table for obtaining
quantizer difference
* @todo
replace it with modified_quant_tab from h263data.h
*
table for obtaining the
quantizer difference
* @todo
Replace it with modified_quant_tab from h263data.h.
*/
static
const
int8_t
rv34_dquant_tab
[]
=
{
0
,
0
,
2
,
1
,
-
1
,
1
,
-
1
,
1
,
-
1
,
1
,
-
1
,
1
,
-
1
,
1
,
-
1
,
1
,
...
...
@@ -133,13 +133,13 @@ static const int8_t rv34_dquant_tab[] = {
};
/**
*
M
aximum number of macroblocks for each of the possible slice offset sizes
* @todo
this is the same as ff_mba_max, maybe use it instead
*
m
aximum number of macroblocks for each of the possible slice offset sizes
* @todo
This is the same as ff_mba_max, maybe use it instead.
*/
static
const
uint16_t
rv34_mb_max_sizes
[
6
]
=
{
0x2F
,
0x68
,
0x18B
,
0x62F
,
0x18BF
,
0x23FF
};
/**
*
Bits needed to cod
e slice offset for the given size
* @todo
this is the same as ff_mba_length, maybe use it instead
*
bits needed to code th
e slice offset for the given size
* @todo
This is the same as ff_mba_length, maybe use it instead.
*/
static
const
uint8_t
rv34_mb_bits_sizes
[
6
]
=
{
6
,
7
,
9
,
11
,
13
,
14
};
...
...
libavcodec/rv40data.h
View file @
c47e20e6
...
...
@@ -21,7 +21,7 @@
/**
* @file rv40data.h
*
Miscellaneous RV40 tables.
*
miscellaneous RV40 tables
*/
#ifndef FFMPEG_RV40DATA_H
...
...
@@ -30,7 +30,7 @@
#include <stdint.h>
/**
*
S
tandard widths and heights coded in RV40
*
s
tandard widths and heights coded in RV40
*/
//@{
static
const
int
rv40_standard_widths
[]
=
{
160
,
172
,
240
,
320
,
352
,
640
,
704
,
0
};
...
...
@@ -40,10 +40,10 @@ static const int rv40_standard_heights2[] = { 180, 360, 576, 0};
#define MODE2_PATTERNS_NUM 20
/**
*
I
ntra types table
*
i
ntra types table
*
* These values are actually coded 3-tuples
* used for detecting standard block configurations
* used for detecting standard block configurations
.
*/
static
const
uint16_t
rv40_aic_table_index
[
MODE2_PATTERNS_NUM
]
=
{
0x000
,
0x100
,
0x200
,
...
...
@@ -55,8 +55,8 @@ static const uint16_t rv40_aic_table_index[MODE2_PATTERNS_NUM] = {
};
/**
*
L
uma quantizer values
*
Second table is used for inter blocks
*
l
uma quantizer values
*
The second table is used for inter blocks.
*/
static
const
uint8_t
rv40_luma_dc_quant
[
2
][
32
]
=
{
{
0
,
1
,
2
,
3
,
4
,
5
,
6
,
7
,
8
,
9
,
10
,
11
,
12
,
13
,
14
,
15
,
...
...
@@ -66,18 +66,18 @@ static const uint8_t rv40_luma_dc_quant[2][32] = {
};
/**
* @begingroup loopfilter coefficients used by RV40 loop filter
* @begingroup loopfilter coefficients used by
the
RV40 loop filter
* @{
*/
/**
*
D
ither values for deblocking filter - left/top values
*
d
ither values for deblocking filter - left/top values
*/
static
const
uint8_t
rv40_dither_l
[
16
]
=
{
0x40
,
0x50
,
0x20
,
0x60
,
0x30
,
0x50
,
0x40
,
0x30
,
0x50
,
0x40
,
0x50
,
0x30
,
0x60
,
0x20
,
0x50
,
0x40
};
/**
*
D
ither values for deblocking filter - right/bottom values
*
d
ither values for deblocking filter - right/bottom values
*/
static
const
uint8_t
rv40_dither_r
[
16
]
=
{
0x40
,
0x30
,
0x60
,
0x20
,
0x50
,
0x30
,
0x30
,
0x40
,
...
...
libavcodec/rv40vlc2.h
View file @
c47e20e6
...
...
@@ -21,7 +21,7 @@
/**
* @file rv40vlc2.h
* RV40 VLC tables used for macroblock information decoding
.
* RV40 VLC tables used for macroblock information decoding
*/
#ifndef FFMPEG_RV40VLC2_H
...
...
@@ -30,7 +30,7 @@
#include <stdint.h>
/**
*
C
odes used for the first four block types
*
c
odes used for the first four block types
*/
//@{
#define AIC_TOP_BITS 8
...
...
@@ -46,7 +46,7 @@ static const uint8_t rv40_aic_top_vlc_bits[AIC_TOP_SIZE] = {
//@}
/**
*
Codes used for determining
pair of block types
*
codes used for determining a
pair of block types
*/
//@{
#define AIC_MODE2_NUM 20
...
...
@@ -634,7 +634,7 @@ static const uint8_t aic_mode1_vlc_bits[AIC_MODE1_NUM][AIC_MODE1_SIZE] = {
#define PBTYPE_ESCAPE 0xFF
/**
T
ables used for P-frame macroblock type decoding */
/**
t
ables used for P-frame macroblock type decoding */
//@{
#define NUM_PTYPE_VLCS 7
#define PTYPE_VLC_SIZE 8
...
...
@@ -670,7 +670,7 @@ static const uint8_t block_num_to_ptype_vlc_num[12] = {
};
//@}
/**
T
ables used for P-frame macroblock type decoding */
/**
t
ables used for P-frame macroblock type decoding */
//@{
#define NUM_BTYPE_VLCS 6
#define BTYPE_VLC_SIZE 7
...
...
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