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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include <inttypes.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include "XBTFReader.h"
#include "guilib/XBTF.h"
#include "utils/EndianSwap.h"
#ifdef TARGET_WINDOWS
#include "filesystem/SpecialProtocol.h"
#include "utils/CharsetConverter.h"
#include "platform/win32/PlatformDefs.h"
#endif
static bool ReadString(FILE* file, char* str, size_t max_length)
{
if (file == nullptr || str == nullptr || max_length <= 0)
return false;
return (fread(str, max_length, 1, file) == 1);
}
static bool ReadUInt32(FILE* file, uint32_t& value)
{
if (file == nullptr)
return false;
if (fread(&value, sizeof(uint32_t), 1, file) != 1)
return false;
value = Endian_SwapLE32(value);
return true;
}
static bool ReadUInt64(FILE* file, uint64_t& value)
{
if (file == nullptr)
return false;
if (fread(&value, sizeof(uint64_t), 1, file) != 1)
return false;
value = Endian_SwapLE64(value);
return true;
}
CXBTFReader::CXBTFReader()
: CXBTFBase(),
m_path()
{ }
CXBTFReader::~CXBTFReader()
{
Close();
}
bool CXBTFReader::Open(const std::string& path)
{
if (path.empty())
return false;
m_path = path;
#ifdef TARGET_WINDOWS
std::wstring strPathW;
g_charsetConverter.utf8ToW(CSpecialProtocol::TranslatePath(m_path), strPathW, false);
m_file = _wfopen(strPathW.c_str(), L"rb");
#else
m_file = fopen(m_path.c_str(), "rb");
#endif
if (m_file == nullptr)
return false;
// read the magic word
char magic[4];
if (!ReadString(m_file, magic, sizeof(magic)))
return false;
if (strncmp(XBTF_MAGIC.c_str(), magic, sizeof(magic)) != 0)
return false;
// read the version
char version[1];
if (!ReadString(m_file, version, sizeof(version)))
return false;
if (strncmp(XBTF_VERSION.c_str(), version, sizeof(version)) != 0)
return false;
unsigned int nofFiles;
if (!ReadUInt32(m_file, nofFiles))
return false;
for (uint32_t i = 0; i < nofFiles; i++)
{
CXBTFFile xbtfFile;
uint32_t u32;
uint64_t u64;
// one extra char to null terminate the string
char path[CXBTFFile::MaximumPathLength + 1] = {};
if (!ReadString(m_file, path, sizeof(path) - 1))
return false;
xbtfFile.SetPath(path);
if (!ReadUInt32(m_file, u32))
return false;
xbtfFile.SetLoop(u32);
unsigned int nofFrames;
if (!ReadUInt32(m_file, nofFrames))
return false;
for (uint32_t j = 0; j < nofFrames; j++)
{
CXBTFFrame frame;
if (!ReadUInt32(m_file, u32))
return false;
frame.SetWidth(u32);
if (!ReadUInt32(m_file, u32))
return false;
frame.SetHeight(u32);
if (!ReadUInt32(m_file, u32))
return false;
frame.SetFormat(u32);
if (!ReadUInt64(m_file, u64))
return false;
frame.SetPackedSize(u64);
if (!ReadUInt64(m_file, u64))
return false;
frame.SetUnpackedSize(u64);
if (!ReadUInt32(m_file, u32))
return false;
frame.SetDuration(u32);
if (!ReadUInt64(m_file, u64))
return false;
frame.SetOffset(u64);
xbtfFile.GetFrames().push_back(frame);
}
AddFile(xbtfFile);
}
// Sanity check
uint64_t pos = static_cast<uint64_t>(ftell(m_file));
if (pos != GetHeaderSize())
return false;
return true;
}
bool CXBTFReader::IsOpen() const
{
return m_file != nullptr;
}
void CXBTFReader::Close()
{
if (m_file != nullptr)
{
fclose(m_file);
m_file = nullptr;
}
m_path.clear();
m_files.clear();
}
time_t CXBTFReader::GetLastModificationTimestamp() const
{
if (m_file == nullptr)
return 0;
struct stat fileStat;
if (fstat(fileno(m_file), &fileStat) == -1)
return 0;
return fileStat.st_mtime;
}
bool CXBTFReader::Load(const CXBTFFrame& frame, unsigned char* buffer) const
{
if (m_file == nullptr)
return false;
#if defined(TARGET_DARWIN) || defined(TARGET_FREEBSD)
if (fseeko(m_file, static_cast<off_t>(frame.GetOffset()), SEEK_SET) == -1)
#elif defined(TARGET_ANDROID)
if (fseek(m_file, static_cast<long>(frame.GetOffset()), SEEK_SET) == -1) // No fseeko64 before N
#else
if (fseeko64(m_file, static_cast<off_t>(frame.GetOffset()), SEEK_SET) == -1)
#endif
return false;
if (fread(buffer, 1, static_cast<size_t>(frame.GetPackedSize()), m_file) != frame.GetPackedSize())
return false;
return true;
}
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