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c io for input

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a dinosaur
2019-09-29 11:51:14 +10:00
parent 0a26bc8998
commit fbf887b534
2 changed files with 29 additions and 36 deletions
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2
neotools/neoadpcmextract.Makefile
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@@ -1,6 +1,6 @@
TARGET := neoadpcmextract
SOURCE := neoadpcmextract.cpp
CXXFLAGS := -O2 -pipe -Wall -Wextra
CXXFLAGS := -O2 -pipe -Wall -Wextra -pedantic
all: $(TARGET)

63
neotools/neoadpcmextract.cpp
View File

@@ -1,5 +1,5 @@
/* neoadpcmextract.cpp
Copyright (C) 2017 Nicholas Curtis
Copyright (C) 2017, 2019 Nicholas Curtis
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -25,11 +25,11 @@
#include <vector>
#include <cstdint>
void DecodeSample(std::ifstream& a_file, std::vector<uint8_t>& a_out)
void DecodeSample(FILE* file, std::vector <uint8_t>& a_out)
{
// Set up output vector.
uint32_t sampLen = 0;
a_file.read((char*)&sampLen, sizeof(uint32_t));
fread(&sampLen, sizeof(uint32_t), 1, file);
if (sampLen < sizeof(uint64_t))
return;
@@ -39,10 +39,10 @@ void DecodeSample(std::ifstream& a_file, std::vector<uint8_t>& a_out)
// Ignore 8 bytes.
uint64_t dummy;
a_file.read((char*)&dummy, sizeof(uint64_t));
fread(&dummy, sizeof(uint64_t), 1, file);
// Read adpcm data.
a_file.read((char*)a_out.data(), sampLen);
fread(a_out.data(), sizeof(uint8_t), sampLen, file);
}
void DumpBytes(std::string a_path, const std::vector<uint8_t>& a_bytes)
@@ -58,45 +58,38 @@ int main(int argc, char** argv)
return -1;
// Open file.
std::ifstream file(argv[1], std::ios::binary);
if (!file.is_open())
FILE* file = fopen(argv[1], "rb");
if (!file)
return -1;
// Search for pcm headers.
std::vector<uint8_t> smpBytes;
int smpA = 0, smpB = 0;
while (!file.eof() && !file.fail())
int smpaCount = 0, smpbCount = 0;
while (!feof(file) && !ferror(file))
{
uint8_t byte;
if (fgetc(file) != 0x67 &&
fgetc(file) != 0x66)
continue;
file >> byte;
if (byte == 0x67)
uint8_t byte = fgetc(file);
if (byte == 0x82)
{
file >> byte;
if (byte == 0x66)
{
file >> byte;
if (byte == 0x82)
{
std::cout << "ADPCM-A data found at 0x" << std::hex << file.tellg() << std::endl;
DecodeSample(file, smpBytes);
std::stringstream path;
path << std::hex << "smpa_" << (smpA++) << ".pcm";
DumpBytes(path.str(), smpBytes);
}
else if (byte == 0x83)
{
std::cout << "ADPCM-B data found at 0x" << std::hex << file.tellg() << std::endl;
DecodeSample(file, smpBytes);
std::stringstream path;
path << std::hex << "smpb_" << (smpB++) << ".pcm";
DumpBytes(path.str(), smpBytes);
}
}
std::cout << "ADPCM-A data found at 0x" << std::hex << ftell(file) << std::endl;
DecodeSample(file, smpBytes);
std::stringstream path;
path << std::hex << "smpa_" << (smpaCount++) << ".pcm";
DumpBytes(path.str(), smpBytes);
}
else if (byte == 0x83)
{
std::cout << "ADPCM-B data found at 0x" << std::hex << ftell(file) << std::endl;
DecodeSample(file, smpBytes);
std::stringstream path;
path << std::hex << "smpb_" << (smpbCount++) << ".pcm";
DumpBytes(path.str(), smpBytes);
}
}
file.close();
fclose(file);
return 0;
}