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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "media/cast/video_sender/fake_software_video_encoder.h" | |
| 6 | |
| 7 #include "base/json/json_writer.h" | |
| 8 #include "base/values.h" | |
| 9 #include "media/cast/transport/cast_transport_config.h" | |
| 10 | |
| 11 #ifndef OFFICIAL_BUILD | |
| 12 | |
| 13 namespace media { | |
| 14 namespace cast { | |
| 15 | |
| 16 FakeSoftwareVideoEncoder::FakeSoftwareVideoEncoder( | |
| 17 const VideoSenderConfig& video_config) | |
| 18 : video_config_(video_config), | |
| 19 next_frame_is_key_(true), | |
| 20 frame_id_(0), | |
| 21 frame_id_to_reference_(0), | |
| 22 frame_size_(0) { | |
| 23 } | |
| 24 | |
| 25 FakeSoftwareVideoEncoder::~FakeSoftwareVideoEncoder() {} | |
| 26 | |
| 27 void FakeSoftwareVideoEncoder::Initialize() {} | |
| 28 | |
| 29 bool FakeSoftwareVideoEncoder::Encode( | |
| 30 const scoped_refptr<media::VideoFrame>& video_frame, | |
| 31 transport::EncodedFrame* encoded_image) { | |
| 32 encoded_image->frame_id = frame_id_++; | |
| 33 if (next_frame_is_key_) { | |
| 34 encoded_image->dependency = transport::EncodedFrame::KEY; | |
| 35 encoded_image->referenced_frame_id = encoded_image->frame_id; | |
| 36 next_frame_is_key_ = false; | |
| 37 } else { | |
| 38 encoded_image->dependency = transport::EncodedFrame::DEPENDENT; | |
| 39 encoded_image->referenced_frame_id = encoded_image->frame_id - 1; | |
| 40 } | |
| 41 | |
| 42 base::DictionaryValue values; | |
| 43 values.SetBoolean("key", | |
| 44 encoded_image->dependency == transport::EncodedFrame::KEY); | |
| 45 values.SetInteger("ref", encoded_image->referenced_frame_id); | |
| 46 values.SetInteger("id", encoded_image->frame_id); | |
| 47 values.SetInteger("size", frame_size_); | |
| 48 base::JSONWriter::Write(&values, &encoded_image->data); | |
| 49 encoded_image->data.resize( | |
| 50 std::max<size_t>(encoded_image->data.size(), frame_size_), ' '); | |
| 51 return true; | |
| 52 } | |
| 53 | |
| 54 void FakeSoftwareVideoEncoder::UpdateRates(uint32 new_bitrate) { | |
| 55 frame_size_ = new_bitrate / video_config_.max_frame_rate / 8; | |
| 56 } | |
| 57 | |
| 58 void FakeSoftwareVideoEncoder::GenerateKeyFrame() { | |
| 59 next_frame_is_key_ = true; | |
| 60 } | |
| 61 | |
| 62 void FakeSoftwareVideoEncoder::LatestFrameIdToReference(uint32 frame_id) { | |
| 63 frame_id_to_reference_ = frame_id; | |
| 64 } | |
| 65 | |
| 66 } // namespace cast | |
| 67 } // namespace media | |
| 68 | |
| 69 #endif | |
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