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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "media/capture/video/linux/video_capture_device_factory_linux.h" | 5 #include "media/capture/video/linux/video_capture_device_factory_linux.h" |
6 | 6 |
7 #include <errno.h> | 7 #include <errno.h> |
8 #include <fcntl.h> | 8 #include <fcntl.h> |
9 #if defined(OS_OPENBSD) | 9 #if defined(OS_OPENBSD) |
10 #include <sys/videoio.h> | 10 #include <sys/videoio.h> |
11 #else | 11 #else |
12 #include <linux/videodev2.h> | 12 #include <linux/videodev2.h> |
13 #endif | 13 #endif |
14 #include <sys/ioctl.h> | 14 #include <sys/ioctl.h> |
15 | 15 |
16 #include "base/files/file_enumerator.h" | 16 #include "base/files/file_enumerator.h" |
17 #include "base/files/scoped_file.h" | 17 #include "base/files/scoped_file.h" |
18 #include "base/posix/eintr_wrapper.h" | 18 #include "base/posix/eintr_wrapper.h" |
19 #if defined(OS_CHROMEOS) | 19 #if defined(OS_CHROMEOS) |
20 #include "media/capture/video/linux/video_capture_device_chromeos.h" | 20 #include "media/capture/video/linux/video_capture_device_chromeos.h" |
21 #endif | 21 #endif |
22 #include "media/capture/video/linux/video_capture_device_linux.h" | 22 #include "media/capture/video/linux/video_capture_device_linux.h" |
23 | 23 |
24 namespace media { | 24 namespace media { |
25 | 25 |
26 static bool HasUsableFormats(int fd, uint32 capabilities) { | 26 static bool HasUsableFormats(int fd, uint32_t capabilities) { |
27 const std::list<uint32_t>& usable_fourccs = | 27 const std::list<uint32_t>& usable_fourccs = |
28 VideoCaptureDeviceLinux::GetListOfUsableFourCCs(false); | 28 VideoCaptureDeviceLinux::GetListOfUsableFourCCs(false); |
29 | 29 |
30 static const struct { | 30 static const struct { |
31 int capability; | 31 int capability; |
32 v4l2_buf_type buf_type; | 32 v4l2_buf_type buf_type; |
33 } kCapabilityAndBufferTypes[] = { | 33 } kCapabilityAndBufferTypes[] = { |
34 {V4L2_CAP_VIDEO_CAPTURE, V4L2_BUF_TYPE_VIDEO_CAPTURE}, | 34 {V4L2_CAP_VIDEO_CAPTURE, V4L2_BUF_TYPE_VIDEO_CAPTURE}, |
35 {V4L2_CAP_VIDEO_CAPTURE_MPLANE, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE}}; | 35 {V4L2_CAP_VIDEO_CAPTURE_MPLANE, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE}}; |
36 | 36 |
37 for (const auto& capability_and_buffer_type : kCapabilityAndBufferTypes) { | 37 for (const auto& capability_and_buffer_type : kCapabilityAndBufferTypes) { |
38 v4l2_fmtdesc fmtdesc = {}; | 38 v4l2_fmtdesc fmtdesc = {}; |
39 if (capabilities & capability_and_buffer_type.capability) { | 39 if (capabilities & capability_and_buffer_type.capability) { |
40 fmtdesc.type = capability_and_buffer_type.buf_type; | 40 fmtdesc.type = capability_and_buffer_type.buf_type; |
41 for (; HANDLE_EINTR(ioctl(fd, VIDIOC_ENUM_FMT, &fmtdesc)) == 0; | 41 for (; HANDLE_EINTR(ioctl(fd, VIDIOC_ENUM_FMT, &fmtdesc)) == 0; |
42 ++fmtdesc.index) { | 42 ++fmtdesc.index) { |
43 if (std::find(usable_fourccs.begin(), usable_fourccs.end(), | 43 if (std::find(usable_fourccs.begin(), usable_fourccs.end(), |
44 fmtdesc.pixelformat) != usable_fourccs.end()) | 44 fmtdesc.pixelformat) != usable_fourccs.end()) |
45 return true; | 45 return true; |
46 } | 46 } |
47 } | 47 } |
48 } | 48 } |
49 DLOG(ERROR) << "No usable formats found"; | 49 DLOG(ERROR) << "No usable formats found"; |
50 return false; | 50 return false; |
51 } | 51 } |
52 | 52 |
53 static std::list<float> GetFrameRateList(int fd, | 53 static std::list<float> GetFrameRateList(int fd, |
54 uint32 fourcc, | 54 uint32_t fourcc, |
55 uint32 width, | 55 uint32_t width, |
56 uint32 height) { | 56 uint32_t height) { |
57 std::list<float> frame_rates; | 57 std::list<float> frame_rates; |
58 | 58 |
59 v4l2_frmivalenum frame_interval = {}; | 59 v4l2_frmivalenum frame_interval = {}; |
60 frame_interval.pixel_format = fourcc; | 60 frame_interval.pixel_format = fourcc; |
61 frame_interval.width = width; | 61 frame_interval.width = width; |
62 frame_interval.height = height; | 62 frame_interval.height = height; |
63 for (; HANDLE_EINTR(ioctl(fd, VIDIOC_ENUM_FRAMEINTERVALS, &frame_interval)) == | 63 for (; HANDLE_EINTR(ioctl(fd, VIDIOC_ENUM_FRAMEINTERVALS, &frame_interval)) == |
64 0; | 64 0; |
65 ++frame_interval.index) { | 65 ++frame_interval.index) { |
66 if (frame_interval.type == V4L2_FRMIVAL_TYPE_DISCRETE) { | 66 if (frame_interval.type == V4L2_FRMIVAL_TYPE_DISCRETE) { |
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215 } | 215 } |
216 | 216 |
217 // static | 217 // static |
218 VideoCaptureDeviceFactory* | 218 VideoCaptureDeviceFactory* |
219 VideoCaptureDeviceFactory::CreateVideoCaptureDeviceFactory( | 219 VideoCaptureDeviceFactory::CreateVideoCaptureDeviceFactory( |
220 scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner) { | 220 scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner) { |
221 return new VideoCaptureDeviceFactoryLinux(ui_task_runner); | 221 return new VideoCaptureDeviceFactoryLinux(ui_task_runner); |
222 } | 222 } |
223 | 223 |
224 } // namespace media | 224 } // namespace media |
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