blob: 1c38be7c96dfeeb3a43e6972f566a30b78b43d3c [file] [log] [blame]
// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <poll.h>
#include <sys/fcntl.h>
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_refptr.h"
#include "media/capture/capture_export.h"
namespace media {
// Interface for abstracting out the V4L2 API. This allows using a mock or fake
// implementation in testing.
class CAPTURE_EXPORT V4L2CaptureDevice
: public base::RefCountedThreadSafe<V4L2CaptureDevice> {
virtual int open(const char* device_name, int flags) = 0;
virtual int close(int fd) = 0;
virtual int ioctl(int fd, int request, void* argp) = 0;
virtual void* mmap(void* start,
size_t length,
int prot,
int flags,
int fd,
off_t offset) = 0;
virtual int munmap(void* start, size_t length) = 0;
virtual int poll(struct pollfd* ufds, unsigned int nfds, int timeout) = 0;
virtual ~V4L2CaptureDevice() {}
friend class base::RefCountedThreadSafe<V4L2CaptureDevice>;
} // namespace media