mpd/src/lib/xiph/OggPage.hxx
2020-01-18 19:23:49 +01:00

50 lines
1.4 KiB
C++

/*
* Copyright 2003-2020 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_OGG_PAGE_HXX
#define MPD_OGG_PAGE_HXX
#include <ogg/ogg.h>
#include <assert.h>
#include <string.h>
#include <stdint.h>
static size_t
ReadPage(const ogg_page &page, void *_buffer, size_t size) noexcept
{
assert(page.header_len > 0 || page.body_len > 0);
size_t header_len = (size_t)page.header_len;
size_t body_len = (size_t)page.body_len;
assert(header_len <= size);
if (header_len + body_len > size)
/* TODO: better overflow handling */
body_len = size - header_len;
uint8_t *buffer = (uint8_t *)_buffer;
memcpy(buffer, page.header, header_len);
memcpy(buffer + header_len, page.body, body_len);
return header_len + body_len;
}
#endif