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 "chromecast/media/cma/ipc_streamer/video_decoder_config_marshaller.h" 6 7#include "base/basictypes.h" 8#include "base/logging.h" 9#include "chromecast/media/cma/ipc/media_message.h" 10#include "media/base/video_decoder_config.h" 11#include "ui/gfx/rect.h" 12#include "ui/gfx/size.h" 13 14namespace chromecast { 15namespace media { 16 17namespace { 18const size_t kMaxExtraDataSize = 16 * 1024; 19 20class SizeMarshaller { 21 public: 22 static void Write(const gfx::Size& size, MediaMessage* msg) { 23 CHECK(msg->WritePod(size.width())); 24 CHECK(msg->WritePod(size.height())); 25 } 26 27 static gfx::Size Read(MediaMessage* msg) { 28 int w, h; 29 CHECK(msg->ReadPod(&w)); 30 CHECK(msg->ReadPod(&h)); 31 return gfx::Size(w, h); 32 } 33}; 34 35class RectMarshaller { 36 public: 37 static void Write(const gfx::Rect& rect, MediaMessage* msg) { 38 CHECK(msg->WritePod(rect.x())); 39 CHECK(msg->WritePod(rect.y())); 40 CHECK(msg->WritePod(rect.width())); 41 CHECK(msg->WritePod(rect.height())); 42 } 43 44 static gfx::Rect Read(MediaMessage* msg) { 45 int x, y, w, h; 46 CHECK(msg->ReadPod(&x)); 47 CHECK(msg->ReadPod(&y)); 48 CHECK(msg->ReadPod(&w)); 49 CHECK(msg->ReadPod(&h)); 50 return gfx::Rect(x, y, w, h); 51 } 52}; 53 54} // namespace 55 56// static 57void VideoDecoderConfigMarshaller::Write( 58 const ::media::VideoDecoderConfig& config, MediaMessage* msg) { 59 CHECK(msg->WritePod(config.codec())); 60 CHECK(msg->WritePod(config.profile())); 61 CHECK(msg->WritePod(config.format())); 62 SizeMarshaller::Write(config.coded_size(), msg); 63 RectMarshaller::Write(config.visible_rect(), msg); 64 SizeMarshaller::Write(config.natural_size(), msg); 65 CHECK(msg->WritePod(config.is_encrypted())); 66 CHECK(msg->WritePod(config.extra_data_size())); 67 if (config.extra_data_size() > 0) 68 CHECK(msg->WriteBuffer(config.extra_data(), config.extra_data_size())); 69} 70 71// static 72::media::VideoDecoderConfig VideoDecoderConfigMarshaller::Read( 73 MediaMessage* msg) { 74 ::media::VideoCodec codec; 75 ::media::VideoCodecProfile profile; 76 ::media::VideoFrame::Format format; 77 gfx::Size coded_size; 78 gfx::Rect visible_rect; 79 gfx::Size natural_size; 80 bool is_encrypted; 81 size_t extra_data_size; 82 scoped_ptr<uint8[]> extra_data; 83 84 CHECK(msg->ReadPod(&codec)); 85 CHECK(msg->ReadPod(&profile)); 86 CHECK(msg->ReadPod(&format)); 87 coded_size = SizeMarshaller::Read(msg); 88 visible_rect = RectMarshaller::Read(msg); 89 natural_size = SizeMarshaller::Read(msg); 90 CHECK(msg->ReadPod(&is_encrypted)); 91 CHECK(msg->ReadPod(&extra_data_size)); 92 93 CHECK_GE(codec, ::media::kUnknownVideoCodec); 94 CHECK_LE(codec, ::media::kVideoCodecMax); 95 CHECK_GE(profile, ::media::VIDEO_CODEC_PROFILE_UNKNOWN); 96 CHECK_LE(profile, ::media::VIDEO_CODEC_PROFILE_MAX); 97 CHECK_GE(format, ::media::VideoFrame::UNKNOWN); 98 CHECK_LE(format, ::media::VideoFrame::FORMAT_MAX); 99 CHECK_LT(extra_data_size, kMaxExtraDataSize); 100 if (extra_data_size > 0) { 101 extra_data.reset(new uint8[extra_data_size]); 102 CHECK(msg->ReadBuffer(extra_data.get(), extra_data_size)); 103 } 104 105 return ::media::VideoDecoderConfig( 106 codec, profile, format, 107 coded_size, visible_rect, natural_size, 108 extra_data.get(), extra_data_size, 109 is_encrypted); 110} 111 112} // namespace media 113} // namespace chromecast 114