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libavcodec
libaom.c
Go to the documentation of this file.
1
/*
2
* This file is part of FFmpeg.
3
*
4
* FFmpeg is free software; you can redistribute it and/or
5
* modify it under the terms of the GNU Lesser General Public
6
* License as published by the Free Software Foundation; either
7
* version 2.1 of the License, or (at your option) any later version.
8
*
9
* FFmpeg is distributed in the hope that it will be useful,
10
* but WITHOUT ANY WARRANTY; without even the implied warranty of
11
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12
* Lesser General Public License for more details.
13
*
14
* You should have received a copy of the GNU Lesser General Public
15
* License along with FFmpeg; if not, write to the Free Software
16
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
18
19
/**
20
* @file
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* AOM common functions
22
*/
23
24
#include "
libavutil/pixdesc.h
"
25
#include "
libaom.h
"
26
27
void
ff_aom_image_copy_16_to_8
(
AVFrame
*pic,
struct
aom_image *
img
)
28
{
29
const
AVPixFmtDescriptor
*
desc
=
av_pix_fmt_desc_get
(pic->
format
);
30
int
i
;
31
32
for
(
i
= 0;
i
<
desc
->nb_components;
i
++) {
33
int
w
=
img
->d_w;
34
int
h
=
img
->d_h;
35
int
x, y;
36
37
if
(
i
) {
38
w
= (
w
+
img
->x_chroma_shift) >>
img
->x_chroma_shift;
39
h
= (
h
+
img
->y_chroma_shift) >>
img
->y_chroma_shift;
40
}
41
42
for
(y = 0; y <
h
; y++) {
43
uint16_t *
src
= (uint16_t *)(
img
->planes[
i
] + y *
img
->stride[
i
]);
44
uint8_t *dst = pic->
data
[
i
] + y * pic->
linesize
[
i
];
45
for
(x = 0; x <
w
; x++)
46
*dst++ = *
src
++;
47
}
48
}
49
}
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition:
pixdesc.c:2962
AVFrame
This structure describes decoded (raw) audio or video data.
Definition:
frame.h:344
pixdesc.h
w
uint8_t w
Definition:
llviddspenc.c:38
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition:
frame.h:365
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition:
frame.h:431
img
#define img
Definition:
vf_colormatrix.c:114
i
#define i(width, name, range_min, range_max)
Definition:
cbs_h2645.c:255
desc
const char * desc
Definition:
libsvtav1.c:75
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition:
pixdesc.h:69
ff_aom_image_copy_16_to_8
void ff_aom_image_copy_16_to_8(AVFrame *pic, struct aom_image *img)
Definition:
libaom.c:27
src
INIT_CLIP pixel * src
Definition:
h264pred_template.c:418
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition:
frame.h:389
h
h
Definition:
vp9dsp_template.c:2038
libaom.h
Generated on Thu Sep 26 2024 23:15:01 for FFmpeg by
1.8.17