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libavcodec
rawenc.c
Go to the documentation of this file.
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/*
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* Raw Video Encoder
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* Copyright (c) 2001 Fabrice Bellard
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*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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 "
avcodec.h
"
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#include "
raw.h
"
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#include "
libavutil/pixdesc.h
"
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#include "
libavutil/intreadwrite.h
"
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static
av_cold
int
raw_init_encoder
(
AVCodecContext
*avctx)
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{
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avctx->
coded_frame
= (
AVFrame
*)avctx->
priv_data
;
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avctx->
coded_frame
->
pict_type
=
AV_PICTURE_TYPE_I
;
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avctx->
coded_frame
->
key_frame
= 1;
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avctx->
bits_per_coded_sample
=
av_get_bits_per_pixel
(&
av_pix_fmt_descriptors
[avctx->
pix_fmt
]);
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if
(!avctx->
codec_tag
)
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avctx->
codec_tag
=
avcodec_pix_fmt_to_codec_tag
(avctx->
pix_fmt
);
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return
0;
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}
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static
int
raw_encode
(
AVCodecContext
*avctx,
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unsigned
char
*frame,
int
buf_size,
void
*
data
)
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{
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int
ret =
avpicture_layout
((
AVPicture
*)data, avctx->
pix_fmt
, avctx->
width
,
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avctx->
height
, frame, buf_size);
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if
(avctx->
codec_tag
==
AV_RL32
(
"yuv2"
) && ret > 0 &&
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avctx->
pix_fmt
==
PIX_FMT_YUYV422
) {
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int
x;
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for
(x = 1; x < avctx->
height
*avctx->
width
*2; x += 2)
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frame[x] ^= 0x80;
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}
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return
ret;
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}
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AVCodec
ff_rawvideo_encoder
= {
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.
name
=
"rawvideo"
,
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.type =
AVMEDIA_TYPE_VIDEO
,
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.id =
CODEC_ID_RAWVIDEO
,
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.priv_data_size =
sizeof
(
AVFrame
),
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.
init
=
raw_init_encoder
,
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.encode =
raw_encode
,
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.long_name =
NULL_IF_CONFIG_SMALL
(
"raw video"
),
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};