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Linshizhi
ffmpeg.wasm-core
Commits
c7142875
Commit
c7142875
authored
May 06, 2019
by
Mark Thompson
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h265_metadata: Add option to set the level of the stream
To match the same option in h264_metadata.
parent
f344bb24
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3 changed files
with
146 additions
and
1 deletion
+146
-1
bitstream_filters.texi
doc/bitstream_filters.texi
+9
-0
Makefile
libavcodec/Makefile
+1
-1
h265_metadata_bsf.c
libavcodec/h265_metadata_bsf.c
+136
-0
No files found.
doc/bitstream_filters.texi
View file @
c7142875
...
...
@@ -361,6 +361,15 @@ will replace the current ones if the stream is already cropped.
These fields are set in pixels. Note that some sizes may not be
representable if the chroma is subsampled (H.265 section 7.4.3.2.1).
@item level
Set the level in the VPS and SPS. See H.265 section A.4 and tables
A.6 and A.7.
The argument must be the name of a level (for example, @samp{5.1}), a
@emph{general_level_idc} value (for example, @samp{153} for level 5.1),
or the special name @samp{auto} indicating that the filter should
attempt to guess the level from the input stream properties.
@end table
@section hevc_mp4toannexb
...
...
libavcodec/Makefile
View file @
c7142875
...
...
@@ -1081,7 +1081,7 @@ OBJS-$(CONFIG_H264_METADATA_BSF) += h264_metadata_bsf.o h264_levels.o
OBJS-$(CONFIG_H264_MP4TOANNEXB_BSF)
+=
h264_mp4toannexb_bsf.o
OBJS-$(CONFIG_H264_REDUNDANT_PPS_BSF)
+=
h264_redundant_pps_bsf.o
OBJS-$(CONFIG_HAPQA_EXTRACT_BSF)
+=
hapqa_extract_bsf.o
hap.o
OBJS-$(CONFIG_HEVC_METADATA_BSF)
+=
h265_metadata_bsf.o
OBJS-$(CONFIG_HEVC_METADATA_BSF)
+=
h265_metadata_bsf.o
h265_profile_level.o
OBJS-$(CONFIG_HEVC_MP4TOANNEXB_BSF)
+=
hevc_mp4toannexb_bsf.o
OBJS-$(CONFIG_IMX_DUMP_HEADER_BSF)
+=
imx_dump_header_bsf.o
OBJS-$(CONFIG_MJPEG2JPEG_BSF)
+=
mjpeg2jpeg_bsf.o
...
...
libavcodec/h265_metadata_bsf.c
View file @
c7142875
...
...
@@ -23,6 +23,7 @@
#include "cbs.h"
#include "cbs_h265.h"
#include "hevc.h"
#include "h265_profile_level.h"
enum
{
PASS
,
...
...
@@ -30,6 +31,11 @@ enum {
REMOVE
,
};
enum
{
LEVEL_UNSET
=
-
2
,
LEVEL_AUTO
=
-
1
,
};
typedef
struct
H265MetadataContext
{
const
AVClass
*
class
;
...
...
@@ -58,9 +64,105 @@ typedef struct H265MetadataContext {
int
crop_right
;
int
crop_top
;
int
crop_bottom
;
int
level
;
int
level_guess
;
int
level_warned
;
}
H265MetadataContext
;
static
void
h265_metadata_guess_level
(
AVBSFContext
*
bsf
,
const
CodedBitstreamFragment
*
au
)
{
H265MetadataContext
*
ctx
=
bsf
->
priv_data
;
const
H265LevelDescriptor
*
desc
;
const
H265RawProfileTierLevel
*
ptl
=
NULL
;
const
H265RawHRDParameters
*
hrd
=
NULL
;
int64_t
bit_rate
=
0
;
int
width
=
0
,
height
=
0
;
int
tile_cols
=
0
,
tile_rows
=
0
;
int
max_dec_pic_buffering
=
0
;
int
i
;
for
(
i
=
0
;
i
<
au
->
nb_units
;
i
++
)
{
const
CodedBitstreamUnit
*
unit
=
&
au
->
units
[
i
];
if
(
unit
->
type
==
HEVC_NAL_VPS
)
{
const
H265RawVPS
*
vps
=
unit
->
content
;
ptl
=
&
vps
->
profile_tier_level
;
max_dec_pic_buffering
=
vps
->
vps_max_dec_pic_buffering_minus1
[
0
]
+
1
;
if
(
vps
->
vps_num_hrd_parameters
>
0
)
hrd
=
&
vps
->
hrd_parameters
[
0
];
}
else
if
(
unit
->
type
==
HEVC_NAL_SPS
)
{
const
H265RawSPS
*
sps
=
unit
->
content
;
ptl
=
&
sps
->
profile_tier_level
;
max_dec_pic_buffering
=
sps
->
sps_max_dec_pic_buffering_minus1
[
0
]
+
1
;
width
=
sps
->
pic_width_in_luma_samples
;
height
=
sps
->
pic_height_in_luma_samples
;
if
(
sps
->
vui
.
vui_hrd_parameters_present_flag
)
hrd
=
&
sps
->
vui
.
hrd_parameters
;
}
else
if
(
unit
->
type
==
HEVC_NAL_PPS
)
{
const
H265RawPPS
*
pps
=
unit
->
content
;
if
(
pps
->
tiles_enabled_flag
)
{
tile_cols
=
pps
->
num_tile_columns_minus1
+
1
;
tile_rows
=
pps
->
num_tile_rows_minus1
+
1
;
}
}
}
if
(
hrd
)
{
if
(
hrd
->
nal_hrd_parameters_present_flag
)
{
bit_rate
=
(
hrd
->
nal_sub_layer_hrd_parameters
[
0
].
bit_rate_value_minus1
[
0
]
+
1
)
*
(
INT64_C
(
1
)
<<
hrd
->
bit_rate_scale
+
6
);
}
else
if
(
hrd
->
vcl_hrd_parameters_present_flag
)
{
bit_rate
=
(
hrd
->
vcl_sub_layer_hrd_parameters
[
0
].
bit_rate_value_minus1
[
0
]
+
1
)
*
(
INT64_C
(
1
)
<<
hrd
->
bit_rate_scale
+
6
);
// Adjust for VCL vs. NAL limits.
bit_rate
=
bit_rate
*
11
/
10
;
}
}
desc
=
ff_h265_guess_level
(
ptl
,
bit_rate
,
width
,
height
,
0
,
tile_cols
,
tile_rows
,
max_dec_pic_buffering
);
if
(
desc
)
{
av_log
(
bsf
,
AV_LOG_DEBUG
,
"Stream appears to conform to "
"level %s.
\n
"
,
desc
->
name
);
ctx
->
level_guess
=
desc
->
level_idc
;
}
}
static
void
h265_metadata_update_level
(
AVBSFContext
*
bsf
,
uint8_t
*
level_idc
)
{
H265MetadataContext
*
ctx
=
bsf
->
priv_data
;
if
(
ctx
->
level
!=
LEVEL_UNSET
)
{
if
(
ctx
->
level
==
LEVEL_AUTO
)
{
if
(
ctx
->
level_guess
)
{
*
level_idc
=
ctx
->
level_guess
;
}
else
{
if
(
!
ctx
->
level_warned
)
{
av_log
(
bsf
,
AV_LOG_WARNING
,
"Unable to determine level "
"of stream: using level 8.5.
\n
"
);
ctx
->
level_warned
=
1
;
}
*
level_idc
=
255
;
}
}
else
{
*
level_idc
=
ctx
->
level
;
}
}
}
static
int
h265_metadata_update_vps
(
AVBSFContext
*
bsf
,
H265RawVPS
*
vps
)
{
...
...
@@ -86,6 +188,8 @@ static int h265_metadata_update_vps(AVBSFContext *bsf,
}
}
h265_metadata_update_level
(
bsf
,
&
vps
->
profile_tier_level
.
general_level_idc
);
return
0
;
}
...
...
@@ -227,6 +331,8 @@ static int h265_metadata_update_sps(AVBSFContext *bsf,
if
(
need_vui
)
sps
->
vui_parameters_present_flag
=
1
;
h265_metadata_update_level
(
bsf
,
&
sps
->
profile_tier_level
.
general_level_idc
);
return
0
;
}
...
...
@@ -297,6 +403,9 @@ static int h265_metadata_filter(AVBSFContext *bsf, AVPacket *out)
}
}
if
(
ctx
->
level
==
LEVEL_AUTO
&&
!
ctx
->
level_guess
)
h265_metadata_guess_level
(
bsf
,
au
);
for
(
i
=
0
;
i
<
au
->
nb_units
;
i
++
)
{
if
(
au
->
units
[
i
].
type
==
HEVC_NAL_VPS
)
{
err
=
h265_metadata_update_vps
(
bsf
,
au
->
units
[
i
].
content
);
...
...
@@ -348,6 +457,9 @@ static int h265_metadata_init(AVBSFContext *bsf)
goto
fail
;
}
if
(
ctx
->
level
==
LEVEL_AUTO
)
h265_metadata_guess_level
(
bsf
,
au
);
for
(
i
=
0
;
i
<
au
->
nb_units
;
i
++
)
{
if
(
au
->
units
[
i
].
type
==
HEVC_NAL_VPS
)
{
err
=
h265_metadata_update_vps
(
bsf
,
au
->
units
[
i
].
content
);
...
...
@@ -441,6 +553,30 @@ static const AVOption h265_metadata_options[] = {
OFFSET
(
crop_bottom
),
AV_OPT_TYPE_INT
,
{
.
i64
=
-
1
},
-
1
,
HEVC_MAX_HEIGHT
,
FLAGS
},
{
"level"
,
"Set level (tables A.6 and A.7)"
,
OFFSET
(
level
),
AV_OPT_TYPE_INT
,
{
.
i64
=
LEVEL_UNSET
},
LEVEL_UNSET
,
0xff
,
FLAGS
,
"level"
},
{
"auto"
,
"Attempt to guess level from stream properties"
,
0
,
AV_OPT_TYPE_CONST
,
{
.
i64
=
LEVEL_AUTO
},
.
flags
=
FLAGS
,
.
unit
=
"level"
},
#define LEVEL(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, \
{ .i64 = value }, .flags = FLAGS, .unit = "level"
{
LEVEL
(
"1"
,
30
)
},
{
LEVEL
(
"2"
,
60
)
},
{
LEVEL
(
"2.1"
,
63
)
},
{
LEVEL
(
"3"
,
90
)
},
{
LEVEL
(
"3.1"
,
93
)
},
{
LEVEL
(
"4"
,
120
)
},
{
LEVEL
(
"4.1"
,
123
)
},
{
LEVEL
(
"5"
,
150
)
},
{
LEVEL
(
"5.1"
,
153
)
},
{
LEVEL
(
"5.2"
,
156
)
},
{
LEVEL
(
"6"
,
180
)
},
{
LEVEL
(
"6.1"
,
183
)
},
{
LEVEL
(
"6.2"
,
186
)
},
{
LEVEL
(
"8.5"
,
255
)
},
#undef LEVEL
{
NULL
}
};
...
...
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