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/*
* Buffered file io for ffmpeg system
* Copyright (c) 2001 Gerard Lantau
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <sys/time.h>
#include "avformat.h"
/* standard file protocol */
static int file_open(URLContext *h, const char *filename, int flags)
{
int access;
int fd;
if (flags & URL_WRONLY) {
access = O_CREAT | O_TRUNC | O_WRONLY;
} else {
access = O_RDONLY;
}
fd = open(filename, access, 0666);
if (fd < 0)
return -ENOENT;
h->priv_data = (void *)fd;
return 0;
}
static int file_read(URLContext *h, unsigned char *buf, int size)
{
int fd = (int)h->priv_data;
return read(fd, buf, size);
}
static int file_write(URLContext *h, unsigned char *buf, int size)
{
int fd = (int)h->priv_data;
return write(fd, buf, size);
}
/* XXX: use llseek */
static offset_t file_seek(URLContext *h, offset_t pos, int whence)
{
int fd = (int)h->priv_data;
return lseek(fd, pos, whence);
}
static int file_close(URLContext *h)
{
int fd = (int)h->priv_data;
return close(fd);
}
URLProtocol file_protocol = {
"file",
file_open,
file_read,
file_write,
file_seek,
file_close,
};
/* pipe protocol */
static int pipe_open(URLContext *h, const char *filename, int flags)
{
int fd;
if (flags & URL_WRONLY) {
fd = 1;
} else {
fd = 0;
}
h->priv_data = (void *)fd;
return 0;
}
static int pipe_read(URLContext *h, unsigned char *buf, int size)
{
int fd = (int)h->priv_data;
return read(fd, buf, size);
}
static int pipe_write(URLContext *h, unsigned char *buf, int size)
{
int fd = (int)h->priv_data;
return write(fd, buf, size);
}
static int pipe_close(URLContext *h)
{
return 0;
}
URLProtocol pipe_protocol = {
"pipe",
pipe_open,
pipe_read,
pipe_write,
NULL,
pipe_close,
};
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