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// Copyright (c) 2012 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 "media/base/decoder_buffer.h"
#include "base/logging.h"
#include "media/base/buffers.h"
#include "media/base/decrypt_config.h"
namespace media {
DecoderBuffer::DecoderBuffer(int size)
: size_(size),
side_data_size_(0) {
Initialize();
}
DecoderBuffer::DecoderBuffer(const uint8* data, int size,
const uint8* side_data, int side_data_size)
: size_(size),
side_data_size_(side_data_size) {
if (!data) {
CHECK_EQ(size_, 0);
CHECK(!side_data);
return;
}
Initialize();
memcpy(data_.get(), data, size_);
if (side_data)
memcpy(side_data_.get(), side_data, side_data_size_);
}
DecoderBuffer::~DecoderBuffer() {}
void DecoderBuffer::Initialize() {
CHECK_GE(size_, 0);
data_.reset(reinterpret_cast<uint8*>(
base::AlignedAlloc(size_ + kPaddingSize, kAlignmentSize)));
memset(data_.get() + size_, 0, kPaddingSize);
if (side_data_size_ > 0) {
side_data_.reset(reinterpret_cast<uint8*>(
base::AlignedAlloc(side_data_size_ + kPaddingSize, kAlignmentSize)));
memset(side_data_.get() + side_data_size_, 0, kPaddingSize);
}
splice_timestamp_ = kNoTimestamp();
}
// static
scoped_refptr<DecoderBuffer> DecoderBuffer::CopyFrom(const uint8* data,
int data_size) {
// If you hit this CHECK you likely have a bug in a demuxer. Go fix it.
CHECK(data);
return make_scoped_refptr(new DecoderBuffer(data, data_size, NULL, 0));
}
// static
scoped_refptr<DecoderBuffer> DecoderBuffer::CopyFrom(const uint8* data,
int data_size,
const uint8* side_data,
int side_data_size) {
// If you hit this CHECK you likely have a bug in a demuxer. Go fix it.
CHECK(data);
CHECK(side_data);
return make_scoped_refptr(new DecoderBuffer(data, data_size,
side_data, side_data_size));
}
// static
scoped_refptr<DecoderBuffer> DecoderBuffer::CreateEOSBuffer() {
return make_scoped_refptr(new DecoderBuffer(NULL, 0, NULL, 0));
}
std::string DecoderBuffer::AsHumanReadableString() {
if (end_of_stream()) {
return "end of stream";
}
std::ostringstream s;
s << "timestamp: " << timestamp_.InMicroseconds()
<< " duration: " << duration_.InMicroseconds()
<< " size: " << size_
<< " side_data_size: " << side_data_size_
<< " encrypted: " << (decrypt_config_ != NULL)
<< " discard_padding (ms): " << discard_padding_.InMilliseconds();
return s.str();
}
} // namespace media
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