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