chromium/third_party/webrtc/modules/video_capture/linux/device_info_v4l2.cc

/*
 *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "modules/video_capture/linux/device_info_v4l2.h"

#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <unistd.h>
// v4l includes
#include <linux/videodev2.h>

#include <vector>

#include "modules/video_capture/video_capture.h"
#include "modules/video_capture/video_capture_defines.h"
#include "modules/video_capture/video_capture_impl.h"
#include "rtc_base/logging.h"

// These defines are here to support building on kernel 3.16 which some
// downstream projects, e.g. Firefox, use.
// TODO(apehrson): Remove them and their undefs when no longer needed.
#ifndef V4L2_PIX_FMT_ABGR32
#define ABGR32_OVERRIDE …
#define V4L2_PIX_FMT_ABGR32 …
#endif

#ifndef V4L2_PIX_FMT_ARGB32
#define ARGB32_OVERRIDE …
#define V4L2_PIX_FMT_ARGB32 …
#endif

#ifndef V4L2_PIX_FMT_RGBA32
#define RGBA32_OVERRIDE …
#define V4L2_PIX_FMT_RGBA32 …
#endif

namespace webrtc {
namespace videocapturemodule {
DeviceInfoV4l2::DeviceInfoV4l2() : … { … }

int32_t DeviceInfoV4l2::Init() { … }

DeviceInfoV4l2::~DeviceInfoV4l2() { … }

uint32_t DeviceInfoV4l2::NumberOfDevices() { … }

int32_t DeviceInfoV4l2::GetDeviceName(uint32_t deviceNumber,
                                      char* deviceNameUTF8,
                                      uint32_t deviceNameLength,
                                      char* deviceUniqueIdUTF8,
                                      uint32_t deviceUniqueIdUTF8Length,
                                      char* /*productUniqueIdUTF8*/,
                                      uint32_t /*productUniqueIdUTF8Length*/) { … }

int32_t DeviceInfoV4l2::CreateCapabilityMap(const char* deviceUniqueIdUTF8) { … }

int32_t DeviceInfoV4l2::DisplayCaptureSettingsDialogBox(
    const char* /*deviceUniqueIdUTF8*/,
    const char* /*dialogTitleUTF8*/,
    void* /*parentWindow*/,
    uint32_t /*positionX*/,
    uint32_t /*positionY*/) { … }

bool DeviceInfoV4l2::IsDeviceNameMatches(const char* name,
                                         const char* deviceUniqueIdUTF8) { … }

int32_t DeviceInfoV4l2::FillCapabilities(int fd) { … }

}  // namespace videocapturemodule
}  // namespace webrtc

#ifdef ABGR32_OVERRIDE
#undef ABGR32_OVERRIDE
#undef V4L2_PIX_FMT_ABGR32
#endif

#ifdef ARGB32_OVERRIDE
#undef ARGB32_OVERRIDE
#undef V4L2_PIX_FMT_ARGB32
#endif

#ifdef RGBA32_OVERRIDE
#undef RGBA32_OVERRIDE
#undef V4L2_PIX_FMT_RGBA32
#endif