2c96392277
When called from the v4l2 input device, pix_fmt can be
AV_PIX_FMT_NONE (for jpeg formats). Before 50ba57e0, this wasn't
an issue for avpicture_get_size, but after that commit, this
lead to crashes.
Signed-off-by: Martin Storsjö <martin@martin.st>
79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/*
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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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