FFmpeg
libavcodec
v210_template.c
Go to the documentation of this file.
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/*
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* Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
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* Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "
bytestream.h
"
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#include "
internal.h
"
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static
void
RENAME
(v210_enc)(
AVCodecContext
*avctx,
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uint8_t *
dst
,
const
AVFrame
*pic)
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{
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V210EncContext
*
s
= avctx->priv_data;
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int
aligned_width = ((avctx->width + 47) / 48) * 48;
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int
stride
= aligned_width * 8 / 3;
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int
line_padding =
stride
- ((avctx->width * 8 + 11) / 12) * 4;
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int
h
,
w
;
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const
TYPE
*y = (
const
TYPE
*)pic->data[0];
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const
TYPE
*
u
= (
const
TYPE
*)pic->data[1];
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const
TYPE
*v = (
const
TYPE
*)pic->data[2];
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const
int
sample_size = 6 *
s
->RENAME(sample_factor);
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const
int
sample_w = avctx->width / sample_size;
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for
(
h
= 0;
h
< avctx->height;
h
++) {
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uint32_t
val
;
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w
= sample_w * sample_size;
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s
->RENAME(pack_line)(y,
u
, v,
dst
,
w
);
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y +=
w
;
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u
+=
w
>> 1;
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v +=
w
>> 1;
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dst
+= sample_w * 16 *
s
->RENAME(sample_factor);
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for
(;
w
< avctx->width - 5;
w
+= 6) {
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WRITE_PIXELS
(
u
, y, v,
DEPTH
);
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WRITE_PIXELS
(y,
u
, y,
DEPTH
);
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WRITE_PIXELS
(v, y,
u
,
DEPTH
);
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WRITE_PIXELS
(y, v, y,
DEPTH
);
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}
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if
(w < avctx->
width
- 1) {
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WRITE_PIXELS
(
u
, y, v,
DEPTH
);
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val
=
CLIP
(*y++,
DEPTH
) << (10-
DEPTH
);
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if
(
w
== avctx->width - 2) {
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AV_WL32
(
dst
,
val
);
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dst
+= 4;
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}
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}
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if
(w < avctx->
width
- 3) {
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val
|= (
CLIP
(*
u
++,
DEPTH
) << (20-
DEPTH
)) | (
CLIP
(*y++,
DEPTH
) << (30-
DEPTH
));
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AV_WL32
(
dst
,
val
);
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dst
+= 4;
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val
=
CLIP
(*v++,
DEPTH
) << (10-
DEPTH
) | (
CLIP
(*y++,
DEPTH
) << (20-
DEPTH
));
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AV_WL32
(
dst
,
val
);
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dst
+= 4;
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}
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memset(
dst
, 0, line_padding);
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dst
+= line_padding;
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y += pic->linesize[0] /
BYTES_PER_PIXEL
- avctx->width;
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u
+= pic->linesize[1] /
BYTES_PER_PIXEL
- avctx->width / 2;
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v += pic->linesize[2] /
BYTES_PER_PIXEL
- avctx->width / 2;
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}
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}
AV_WL32
#define AV_WL32(p, v)
Definition:
intreadwrite.h:422
u
#define u(width, name, range_min, range_max)
Definition:
cbs_h2645.c:251
AVFrame
This structure describes decoded (raw) audio or video data.
Definition:
frame.h:389
w
uint8_t w
Definition:
llviddspenc.c:38
internal.h
val
static double val(void *priv, double ch)
Definition:
aeval.c:77
s
#define s(width, name)
Definition:
cbs_vp9.c:198
TYPE
#define TYPE
Definition:
ffv1dec.c:116
V210EncContext
Definition:
v210enc.h:26
WRITE_PIXELS
#define WRITE_PIXELS(a, b, c, depth)
Definition:
v210enc_init.h:37
dst
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
Definition:
dsp.h:83
BYTES_PER_PIXEL
#define BYTES_PER_PIXEL
Definition:
v210enc.c:44
DEPTH
#define DEPTH
Definition:
v210enc.c:43
stride
#define stride
Definition:
h264pred_template.c:537
AVCodecContext
main external API structure.
Definition:
avcodec.h:451
RENAME
#define RENAME(element)
Definition:
ac3enc_template.c:44
CLIP
@ CLIP
Definition:
qdrw.c:37
bytestream.h
h
h
Definition:
vp9dsp_template.c:2070
width
#define width
Definition:
dsp.h:85
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