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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromecast/media/cma/ipc_streamer/video_decoder_config_marshaller.h"
#include "base/basictypes.h"
#include "base/logging.h"
#include "chromecast/media/cma/ipc/media_message.h"
#include "media/base/video_decoder_config.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size.h"
namespace chromecast {
namespace media {
namespace {
const size_t kMaxExtraDataSize = 16 * 1024;
class SizeMarshaller {
public:
static void Write(const gfx::Size& size, MediaMessage* msg) {
CHECK(msg->WritePod(size.width()));
CHECK(msg->WritePod(size.height()));
}
static gfx::Size Read(MediaMessage* msg) {
int w, h;
CHECK(msg->ReadPod(&w));
CHECK(msg->ReadPod(&h));
return gfx::Size(w, h);
}
};
class RectMarshaller {
public:
static void Write(const gfx::Rect& rect, MediaMessage* msg) {
CHECK(msg->WritePod(rect.x()));
CHECK(msg->WritePod(rect.y()));
CHECK(msg->WritePod(rect.width()));
CHECK(msg->WritePod(rect.height()));
}
static gfx::Rect Read(MediaMessage* msg) {
int x, y, w, h;
CHECK(msg->ReadPod(&x));
CHECK(msg->ReadPod(&y));
CHECK(msg->ReadPod(&w));
CHECK(msg->ReadPod(&h));
return gfx::Rect(x, y, w, h);
}
};
} // namespace
// static
void VideoDecoderConfigMarshaller::Write(
const ::media::VideoDecoderConfig& config, MediaMessage* msg) {
CHECK(msg->WritePod(config.codec()));
CHECK(msg->WritePod(config.profile()));
CHECK(msg->WritePod(config.format()));
CHECK(msg->WritePod(config.color_space()));
SizeMarshaller::Write(config.coded_size(), msg);
RectMarshaller::Write(config.visible_rect(), msg);
SizeMarshaller::Write(config.natural_size(), msg);
CHECK(msg->WritePod(config.is_encrypted()));
CHECK(msg->WritePod(config.extra_data_size()));
if (config.extra_data_size() > 0)
CHECK(msg->WriteBuffer(config.extra_data(), config.extra_data_size()));
}
// static
::media::VideoDecoderConfig VideoDecoderConfigMarshaller::Read(
MediaMessage* msg) {
::media::VideoCodec codec;
::media::VideoCodecProfile profile;
::media::VideoPixelFormat format;
::media::ColorSpace color_space;
gfx::Size coded_size;
gfx::Rect visible_rect;
gfx::Size natural_size;
bool is_encrypted;
size_t extra_data_size;
scoped_ptr<uint8[]> extra_data;
CHECK(msg->ReadPod(&codec));
CHECK(msg->ReadPod(&profile));
CHECK(msg->ReadPod(&format));
CHECK(msg->ReadPod(&color_space));
coded_size = SizeMarshaller::Read(msg);
visible_rect = RectMarshaller::Read(msg);
natural_size = SizeMarshaller::Read(msg);
CHECK(msg->ReadPod(&is_encrypted));
CHECK(msg->ReadPod(&extra_data_size));
CHECK_GE(codec, ::media::kUnknownVideoCodec);
CHECK_LE(codec, ::media::kVideoCodecMax);
CHECK_GE(profile, ::media::VIDEO_CODEC_PROFILE_UNKNOWN);
CHECK_LE(profile, ::media::VIDEO_CODEC_PROFILE_MAX);
CHECK_GE(format, ::media::PIXEL_FORMAT_UNKNOWN);
CHECK_LE(format, ::media::PIXEL_FORMAT_MAX);
CHECK_GE(color_space, ::media::COLOR_SPACE_UNSPECIFIED);
CHECK_LE(color_space, ::media::COLOR_SPACE_MAX);
CHECK_LT(extra_data_size, kMaxExtraDataSize);
if (extra_data_size > 0) {
extra_data.reset(new uint8[extra_data_size]);
CHECK(msg->ReadBuffer(extra_data.get(), extra_data_size));
}
return ::media::VideoDecoderConfig(
codec, profile, format, color_space,
coded_size, visible_rect, natural_size,
extra_data.get(), extra_data_size,
is_encrypted);
}
} // namespace media
} // namespace chromecast
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