Initial revision

Originally committed as revision 5 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 121 insertions, 0 deletions

diff --git a/libav/file.c b/libav/file.c
new file mode 100644
index 0000000000..0b255341c8
--- /dev/null
+++ b/libav/file.c
@@ -0,0 +1,121 @@
+/*
+ * 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,
+};