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libavcodec
avpicture.c
Go to the documentation of this file.
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/*
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* AVPicture management routines
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* Copyright (c) 2001, 2002, 2003 Fabrice Bellard
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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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/**
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* @file
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* AVPicture management routines
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*/
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#include "
avcodec.h
"
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#include "
internal.h
"
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#include "
libavutil/common.h
"
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#include "
libavutil/pixdesc.h
"
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#include "
libavutil/imgutils.h
"
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#include "
libavutil/colorspace.h
"
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int
avpicture_fill
(
AVPicture
*picture,
const
uint8_t
*ptr,
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enum
AVPixelFormat
pix_fmt
,
int
width
,
int
height
)
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{
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return
av_image_fill_arrays
(picture->
data
, picture->
linesize
,
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ptr, pix_fmt, width, height, 1);
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}
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int
avpicture_layout
(
const
AVPicture
*
src
,
enum
AVPixelFormat
pix_fmt
,
int
width
,
int
height
,
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unsigned
char
*dest,
int
dest_size)
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{
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return
av_image_copy_to_buffer
(dest, dest_size,
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(
const
uint8_t
*
const
*)src->
data
, src->
linesize
,
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pix_fmt, width, height, 1);
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}
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int
avpicture_get_size
(
enum
AVPixelFormat
pix_fmt
,
int
width
,
int
height
)
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{
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return
av_image_get_buffer_size
(pix_fmt, width, height, 1);
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}
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int
avpicture_alloc
(
AVPicture
*picture,
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enum
AVPixelFormat
pix_fmt
,
int
width
,
int
height
)
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{
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int
ret
=
av_image_alloc
(picture->
data
, picture->
linesize
,
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width, height, pix_fmt, 1);
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if
(ret < 0) {
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memset(picture, 0,
sizeof
(
AVPicture
));
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return
ret
;
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}
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return
0;
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}
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void
avpicture_free
(
AVPicture
*picture)
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{
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av_free
(picture->
data
[0]);
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}
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void
av_picture_copy
(
AVPicture
*dst,
const
AVPicture
*
src
,
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enum
AVPixelFormat
pix_fmt
,
int
width
,
int
height
)
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{
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av_image_copy
(dst->
data
, dst->
linesize
, (
const
uint8_t
**)src->
data
,
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src->
linesize
, pix_fmt, width, height);
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}
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