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Side by Side Diff: media/capture/video/linux/v4l2_capture_delegate_multi_plane.h

Issue 1685713003: Remove V4L2CaptureDelegate{Single,Multi}Plane, VCD::Client::OnIncomingCapturedYuvData() (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: perkj@ comments and reverted change to WeakPtr Created 4 years, 10 months ago
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1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef MEDIA_VIDEO_CAPTURE_LINUX_V4L2_CAPTURE_DELEGATE_MULTI_PLANE_H_
6 #define MEDIA_VIDEO_CAPTURE_LINUX_V4L2_CAPTURE_DELEGATE_MULTI_PLANE_H_
7
8 #include <stdint.h>
9
10 #include "base/memory/ref_counted.h"
11 #include "build/build_config.h"
12 #include "media/capture/video/linux/v4l2_capture_delegate.h"
13
14 #if defined(OS_OPENBSD)
15 #error "OpenBSD does not support MPlane capture API."
16 #endif
17
18 namespace base {
19 class SingleThreadTaskRunner;
20 } // namespace base
21
22 namespace media {
23
24 // V4L2 specifics for MPLANE API.
25 class V4L2CaptureDelegateMultiPlane final : public V4L2CaptureDelegate {
26 public:
27 V4L2CaptureDelegateMultiPlane(
28 const VideoCaptureDevice::Name& device_name,
29 const scoped_refptr<base::SingleThreadTaskRunner>& v4l2_task_runner,
30 int power_line_frequency);
31
32 private:
33 // BufferTracker derivation to implement construction semantics for MPLANE.
34 class BufferTrackerMPlane final : public BufferTracker {
35 public:
36 bool Init(int fd, const v4l2_buffer& buffer) override;
37
38 private:
39 ~BufferTrackerMPlane() override {}
40 };
41
42 ~V4L2CaptureDelegateMultiPlane() override;
43
44 // V4L2CaptureDelegate virtual methods implementation.
45 scoped_refptr<BufferTracker> CreateBufferTracker() const override;
46 bool FillV4L2Format(v4l2_format* format,
47 uint32_t width,
48 uint32_t height,
49 uint32_t pixelformat_fourcc) const override;
50 void FinishFillingV4L2Buffer(v4l2_buffer* buffer) const override;
51 void SetPayloadSize(const scoped_refptr<BufferTracker>& buffer_tracker,
52 const v4l2_buffer& buffer) const override;
53 void SendBuffer(const scoped_refptr<BufferTracker>& buffer_tracker,
54 const v4l2_format& format) const override;
55
56 // Vector to allocate and track as many v4l2_plane structs as planes, needed
57 // for v4l2_buffer.m.planes. This is a scratchpad marked mutable to enable
58 // using it in otherwise const methods.
59 mutable std::vector<struct v4l2_plane> v4l2_planes_;
60 };
61
62 } // namespace media
63
64 #endif // MEDIA_VIDEO_CAPTURE_LINUX_V4L2_CAPTURE_DELEGATE_SINGLE_PLANE_H_
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