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/sender/fake_software_video_encoder.h"
6
7#include "base/json/json_writer.h"
8#include "base/values.h"
9#include "media/cast/net/cast_transport_config.h"
10
11#ifndef OFFICIAL_BUILD
12
13namespace media {
14namespace cast {
15
16FakeSoftwareVideoEncoder::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
25FakeSoftwareVideoEncoder::~FakeSoftwareVideoEncoder() {}
26
27void FakeSoftwareVideoEncoder::Initialize() {}
28
29bool FakeSoftwareVideoEncoder::Encode(
30    const scoped_refptr<media::VideoFrame>& video_frame,
31    EncodedFrame* encoded_image) {
32  encoded_image->frame_id = frame_id_++;
33  if (next_frame_is_key_) {
34    encoded_image->dependency = EncodedFrame::KEY;
35    encoded_image->referenced_frame_id = encoded_image->frame_id;
36    next_frame_is_key_ = false;
37  } else {
38    encoded_image->dependency = 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 == 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
54void FakeSoftwareVideoEncoder::UpdateRates(uint32 new_bitrate) {
55  frame_size_ = new_bitrate / video_config_.max_frame_rate / 8;
56}
57
58void FakeSoftwareVideoEncoder::GenerateKeyFrame() {
59  next_frame_is_key_ = true;
60}
61
62void FakeSoftwareVideoEncoder::LatestFrameIdToReference(uint32 frame_id) {
63  frame_id_to_reference_ = frame_id;
64}
65
66}  // namespace cast
67}  // namespace media
68
69#endif
70