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11a2d05b
编写于
7月 30, 2020
作者:
M
Mark Thompson
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电子邮件补丁
差异文件
libsvtav1: Fix the documentation to match the actual options
上级
ad7aa1e8
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
39 addition
and
15 deletion
+39
-15
doc/encoders.texi
doc/encoders.texi
+36
-12
libavcodec/libsvtav1.c
libavcodec/libsvtav1.c
+3
-3
未找到文件。
doc/encoders.texi
浏览文件 @
11a2d05b
...
...
@@ -1687,7 +1687,7 @@ Enable smooth interintra mode. Default is true.
@end table
@section libsvt
-
av1
@section libsvtav1
SVT-AV1 encoder wrapper.
...
...
@@ -1697,31 +1697,55 @@ You need to explicitly configure the build with @code{--enable-libsvtav1}.
@subsection Options
@table @option
@item profile
Set the encoding profile.
@item level
Set the operating point level.
@item tier
Set the operating point tier.
@item rc
Set the rate control mode to use.
Possible modes:
@table @option
@item cqp
Constant quantizer: use fixed values of qindex (dependent on the frame type)
throughout the stream. This mode is the default.
@item vbr
Variable bitrate: use a target bitrate for the whole stream.
@item cvbr
Constrained variable bitrate: use a target bitrate for each GOP.
@end table
@item qmax
Set
s the maximum quantizer to use when using
bitrate mode.
Set
the maximum quantizer to use when using a
bitrate mode.
@item qmin
Set
s the minimum quantizer to use when using
bitrate mode.
Set
the minimum quantizer to use when using a
bitrate mode.
@item qp
Uses quantizer mode to encode at the given quantizer
(0-63).
Set the quantizer used in cqp rate control mode
(0-63).
@item
hielevel
@item
sc_detection
Enable scene change detection.
@item la_depth
Set number of frames to look ahead (0-120).
@item preset
Set encoding preset.
Set the quality-speed tradeoff, in the range 0 to 8. Higher values are
faster but lower quality. Defaults to 8 (highest speed).
@item tier
@item tile-rows
Selects how many rows of tiles to encode with (0-6).
@item tile_rows
Set log2 of the number of rows of tiles to use (0-6).
@item tile
-
columns
Se
lects how many columns of tiles to encode with
(0-4).
@item tile
_
columns
Se
t log2 of the number of columns of tiles to use
(0-4).
@end table
...
...
libavcodec/libsvtav1.c
浏览文件 @
11a2d05b
...
...
@@ -489,7 +489,7 @@ static const AVOption options[] = {
{
"preset"
,
"Encoding preset [0, 8]"
,
OFFSET
(
enc_mode
),
AV_OPT_TYPE_INT
,
{
.
i64
=
MAX_ENC_PRESET
},
0
,
MAX_ENC_PRESET
,
VE
},
{
"tier"
,
"Set
tier (general_tier_flag)
"
,
OFFSET
(
tier
),
{
"tier"
,
"Set
operating point tier
"
,
OFFSET
(
tier
),
AV_OPT_TYPE_INT
,
{
.
i64
=
0
},
0
,
1
,
VE
,
"tier"
},
{
"main"
,
NULL
,
0
,
AV_OPT_TYPE_CONST
,
{
.
i64
=
0
},
0
,
0
,
VE
,
"tier"
},
{
"high"
,
NULL
,
0
,
AV_OPT_TYPE_CONST
,
{
.
i64
=
1
},
0
,
0
,
VE
,
"tier"
},
...
...
@@ -526,11 +526,11 @@ static const AVOption options[] = {
{
"rc"
,
"Bit rate control mode"
,
OFFSET
(
rc_mode
),
AV_OPT_TYPE_INT
,
{
.
i64
=
0
},
0
,
3
,
VE
,
"rc"
},
{
"cqp"
,
"Const
Quantization Paramet
er"
,
0
,
AV_OPT_TYPE_CONST
,
{
.
i64
=
0
},
INT_MIN
,
INT_MAX
,
VE
,
"rc"
},
{
"cqp"
,
"Const
ant quantiz
er"
,
0
,
AV_OPT_TYPE_CONST
,
{
.
i64
=
0
},
INT_MIN
,
INT_MAX
,
VE
,
"rc"
},
{
"vbr"
,
"Variable Bit Rate, use a target bitrate for the entire stream"
,
0
,
AV_OPT_TYPE_CONST
,
{
.
i64
=
1
},
INT_MIN
,
INT_MAX
,
VE
,
"rc"
},
{
"cvbr"
,
"Constrained Variable Bit Rate, use a target bitrate for each GOP"
,
0
,
AV_OPT_TYPE_CONST
,{
.
i64
=
2
},
INT_MIN
,
INT_MAX
,
VE
,
"rc"
},
{
"qp"
,
"Q
P value for intra frames
"
,
OFFSET
(
qp
),
{
"qp"
,
"Q
uantizer to use with cqp rate control mode
"
,
OFFSET
(
qp
),
AV_OPT_TYPE_INT
,
{
.
i64
=
50
},
0
,
63
,
VE
},
{
"sc_detection"
,
"Scene change detection"
,
OFFSET
(
scd
),
...
...
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