niklase@google.com | 470e71d | 2011-07-07 08:21:25 +0000 | [diff] [blame] | 1 | /* |
mflodman@webrtc.org | 0e703f4 | 2012-03-06 12:02:20 +0000 | [diff] [blame] | 2 | * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
niklase@google.com | 470e71d | 2011-07-07 08:21:25 +0000 | [diff] [blame] | 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 11 | #include "common_video/include/incoming_video_stream.h" |
niklase@google.com | 470e71d | 2011-07-07 08:21:25 +0000 | [diff] [blame] | 12 | |
tommi | ede0759 | 2017-02-27 07:16:10 -0800 | [diff] [blame] | 13 | #include <memory> |
| 14 | |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 15 | #include "common_video/video_render_frames.h" |
| 16 | #include "rtc_base/timeutils.h" |
| 17 | #include "rtc_base/trace_event.h" |
mflodman@webrtc.org | 327ada1 | 2012-05-30 10:45:18 +0000 | [diff] [blame] | 18 | |
niklase@google.com | 470e71d | 2011-07-07 08:21:25 +0000 | [diff] [blame] | 19 | namespace webrtc { |
tommi | 0f8b403 | 2017-02-22 11:22:05 -0800 | [diff] [blame] | 20 | namespace { |
tommi | ede0759 | 2017-02-27 07:16:10 -0800 | [diff] [blame] | 21 | const char kIncomingQueueName[] = "IncomingVideoStream"; |
| 22 | } |
| 23 | |
| 24 | // Capture by moving (std::move) into a lambda isn't possible in C++11 |
| 25 | // (supported in C++14). This class provides the functionality of what would be |
| 26 | // something like (inside OnFrame): |
| 27 | // VideoFrame frame(video_frame); |
| 28 | // incoming_render_queue_.PostTask([this, frame = std::move(frame)](){ |
| 29 | // if (render_buffers_.AddFrame(std::move(frame)) == 1) |
| 30 | // Dequeue(); |
| 31 | // }); |
| 32 | class IncomingVideoStream::NewFrameTask : public rtc::QueuedTask { |
| 33 | public: |
| 34 | NewFrameTask(IncomingVideoStream* stream, VideoFrame frame) |
| 35 | : stream_(stream), frame_(std::move(frame)) {} |
| 36 | |
| 37 | private: |
| 38 | bool Run() override { |
nisse | 2c7b7a6 | 2017-09-04 05:18:21 -0700 | [diff] [blame] | 39 | RTC_DCHECK(stream_->incoming_render_queue_.IsCurrent()); |
tommi | ede0759 | 2017-02-27 07:16:10 -0800 | [diff] [blame] | 40 | if (stream_->render_buffers_.AddFrame(std::move(frame_)) == 1) |
| 41 | stream_->Dequeue(); |
| 42 | return true; |
| 43 | } |
| 44 | |
| 45 | IncomingVideoStream* stream_; |
| 46 | VideoFrame frame_; |
| 47 | }; |
mflodman@webrtc.org | 327ada1 | 2012-05-30 10:45:18 +0000 | [diff] [blame] | 48 | |
tommi | 2e82f38 | 2016-06-21 00:26:43 -0700 | [diff] [blame] | 49 | IncomingVideoStream::IncomingVideoStream( |
| 50 | int32_t delay_ms, |
| 51 | rtc::VideoSinkInterface<VideoFrame>* callback) |
tommi | ede0759 | 2017-02-27 07:16:10 -0800 | [diff] [blame] | 52 | : render_buffers_(delay_ms), |
| 53 | callback_(callback), |
| 54 | incoming_render_queue_(kIncomingQueueName, |
| 55 | rtc::TaskQueue::Priority::HIGH) {} |
niklase@google.com | 470e71d | 2011-07-07 08:21:25 +0000 | [diff] [blame] | 56 | |
mflodman@webrtc.org | 327ada1 | 2012-05-30 10:45:18 +0000 | [diff] [blame] | 57 | IncomingVideoStream::~IncomingVideoStream() { |
tommi | 2e82f38 | 2016-06-21 00:26:43 -0700 | [diff] [blame] | 58 | RTC_DCHECK(main_thread_checker_.CalledOnValidThread()); |
niklase@google.com | 470e71d | 2011-07-07 08:21:25 +0000 | [diff] [blame] | 59 | } |
| 60 | |
nisse | 30f118e | 2016-05-03 01:09:11 -0700 | [diff] [blame] | 61 | void IncomingVideoStream::OnFrame(const VideoFrame& video_frame) { |
tommi | db23ea6 | 2017-03-03 07:21:18 -0800 | [diff] [blame] | 62 | TRACE_EVENT0("webrtc", "IncomingVideoStream::OnFrame"); |
Peter Boström | 02bafc6 | 2016-07-01 12:45:15 +0200 | [diff] [blame] | 63 | RTC_CHECK_RUNS_SERIALIZED(&decoder_race_checker_); |
tommi | ede0759 | 2017-02-27 07:16:10 -0800 | [diff] [blame] | 64 | RTC_DCHECK(!incoming_render_queue_.IsCurrent()); |
| 65 | incoming_render_queue_.PostTask( |
| 66 | std::unique_ptr<rtc::QueuedTask>(new NewFrameTask(this, video_frame))); |
niklase@google.com | 470e71d | 2011-07-07 08:21:25 +0000 | [diff] [blame] | 67 | } |
| 68 | |
tommi | ede0759 | 2017-02-27 07:16:10 -0800 | [diff] [blame] | 69 | void IncomingVideoStream::Dequeue() { |
tommi | db23ea6 | 2017-03-03 07:21:18 -0800 | [diff] [blame] | 70 | TRACE_EVENT0("webrtc", "IncomingVideoStream::Dequeue"); |
tommi | ede0759 | 2017-02-27 07:16:10 -0800 | [diff] [blame] | 71 | RTC_DCHECK(incoming_render_queue_.IsCurrent()); |
| 72 | rtc::Optional<VideoFrame> frame_to_render = render_buffers_.FrameToRender(); |
| 73 | if (frame_to_render) |
| 74 | callback_->OnFrame(*frame_to_render); |
mflodman@webrtc.org | 327ada1 | 2012-05-30 10:45:18 +0000 | [diff] [blame] | 75 | |
tommi | ede0759 | 2017-02-27 07:16:10 -0800 | [diff] [blame] | 76 | if (render_buffers_.HasPendingFrames()) { |
| 77 | uint32_t wait_time = render_buffers_.TimeToNextFrameRelease(); |
| 78 | incoming_render_queue_.PostDelayedTask([this]() { Dequeue(); }, wait_time); |
mflodman@webrtc.org | 327ada1 | 2012-05-30 10:45:18 +0000 | [diff] [blame] | 79 | } |
niklase@google.com | 470e71d | 2011-07-07 08:21:25 +0000 | [diff] [blame] | 80 | } |
| 81 | |
mflodman@webrtc.org | 327ada1 | 2012-05-30 10:45:18 +0000 | [diff] [blame] | 82 | } // namespace webrtc |