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/*
* Copyright (C) 2005-2013 Team XBMC
* http://kodi.tv
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#define __STDC_FORMAT_MACROS
#include <cinttypes>
#if defined(TARGET_FREEBSD) || defined(TARGET_DARWIN)
#include <cstdlib>
#elif !defined(TARGET_DARWIN)
#include <malloc.h>
#endif
#include <memory.h>
#include <cstring>
#include "XBTFWriter.h"
#include "guilib/XBTFReader.h"
#include "utils/EndianSwap.h"
#define WRITE_STR(str, size, file) fwrite(str, size, 1, file)
#define WRITE_U32(i, file) { uint32_t _n = Endian_SwapLE32(i); fwrite(&_n, 4, 1, file); }
#define WRITE_U64(i, file) { uint64_t _n = i; _n = Endian_SwapLE64(i); fwrite(&_n, 8, 1, file); }
CXBTFWriter::CXBTFWriter(const std::string& outputFile)
: m_outputFile(outputFile),
m_file(nullptr),
m_data(nullptr),
m_size(0)
{ }
CXBTFWriter::~CXBTFWriter()
{
Close();
}
bool CXBTFWriter::Create()
{
m_file = fopen(m_outputFile.c_str(), "wb");
if (m_file == nullptr)
return false;
return true;
}
bool CXBTFWriter::Close()
{
if (m_file == nullptr || m_data == nullptr)
return false;
fwrite(m_data, 1, m_size, m_file);
Cleanup();
return true;
}
void CXBTFWriter::Cleanup()
{
free(m_data);
m_data = nullptr;
m_size = 0;
if (m_file)
{
fclose(m_file);
m_file = nullptr;
}
}
bool CXBTFWriter::AppendContent(unsigned char const* data, size_t length)
{
unsigned char *new_data = (unsigned char *)realloc(m_data, m_size + length);
if (new_data == nullptr)
{ // OOM - cleanup and fail
Cleanup();
return false;
}
m_data = new_data;
memcpy(m_data + m_size, data, length);
m_size += length;
return true;
}
bool CXBTFWriter::UpdateHeader(const std::vector<unsigned int>& dupes)
{
if (m_file == nullptr)
return false;
uint64_t headerSize = GetHeaderSize();
uint64_t offset = headerSize;
WRITE_STR(XBTF_MAGIC.c_str(), 4, m_file);
WRITE_STR(XBTF_VERSION.c_str(), 1, m_file);
auto files = GetFiles();
WRITE_U32(files.size(), m_file);
for (size_t i = 0; i < files.size(); i++)
{
CXBTFFile& file = files[i];
// Convert path to lower case and store it into a fixed size array because
// we need to store the path as a fixed length 256 byte character array.
std::string path = file.GetPath();
char pathMem[CXBTFFile::MaximumPathLength];
memset(pathMem, 0, sizeof(pathMem));
for (std::string::iterator ch = path.begin(); ch != path.end(); ++ch)
pathMem[std::distance(path.begin(), ch)] = tolower(*ch);
WRITE_STR(pathMem, CXBTFFile::MaximumPathLength, m_file);
WRITE_U32(file.GetLoop(), m_file);
std::vector<CXBTFFrame>& frames = file.GetFrames();
WRITE_U32(frames.size(), m_file);
for (size_t j = 0; j < frames.size(); j++)
{
CXBTFFrame& frame = frames[j];
if (dupes[i] != i)
frame.SetOffset(files[dupes[i]].GetFrames()[j].GetOffset());
else
{
frame.SetOffset(offset);
offset += frame.GetPackedSize();
}
WRITE_U32(frame.GetWidth(), m_file);
WRITE_U32(frame.GetHeight(), m_file);
WRITE_U32(frame.GetFormat(true), m_file);
WRITE_U64(frame.GetPackedSize(), m_file);
WRITE_U64(frame.GetUnpackedSize(), m_file);
WRITE_U32(frame.GetDuration(), m_file);
WRITE_U64(frame.GetOffset(), m_file);
}
}
// Sanity check
int64_t pos = ftell(m_file);
if (pos != static_cast<int64_t>(headerSize))
{
printf("Expected header size (%" PRIu64 ") != actual size (%" PRId64 ")\n", headerSize, pos);
return false;
}
return true;
}
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