Matthias Blankertz
ae51cd24c4
Added an MmapFile helper and changed iffexplore and treexplore to use it. WIP: MveDecoder Misc. changes/fixes
90 lines
2.0 KiB
C++
90 lines
2.0 KiB
C++
#include <cstdio>
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#include <cstring>
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#include <cerrno>
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#include <cstdint>
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#include <memory>
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#include <limits>
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#include <unistd.h>
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#include "common.hh"
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#include "util.hh"
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#include "TreFile.hh"
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#include "IffFile.hh"
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#include "MveDecoder.hh"
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void usage(char *argv0) {
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fprintf(stderr, "Usage: %s [-h] (tre-file name/crc)/iff-file\n", argv0);
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fprintf(stderr, "\tAttempt to decode the movie stored in iff-file, or in the\n\tiff-object \"name\"/\"crc\" contained in tre-file\n");
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fprintf(stderr, "\t-h\tPrint this help\n");
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}
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int main(int argc, char *argv[]) {
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std::string inFile, objectSpec;
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bool useTre = false;
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{
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int opt;
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while ((opt = getopt(argc, argv, "h")) != -1) {
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switch (opt) {
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case 'h':
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usage(argv[0]);
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return 0;
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default:
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usage(argv[0]);
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return 1;
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}
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}
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if (optind >= argc) {
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usage(argv[0]);
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return 1;
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}
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inFile = argv[optind++];
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if (optind < argc) {
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useTre = true;
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objectSpec = argv[optind];
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}
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}
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try {
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MmapFile mmap{inFile};
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std::unique_ptr<TreFile> tre;
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TreFile::Object object;
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std::unique_ptr<MveDecoder> mve;
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if (useTre) {
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tre = std::make_unique<TreFile>(mmap.data(), mmap.size());
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// Try to parse objectSpec as CRC
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try {
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unsigned long CRC = std::stoul(objectSpec, nullptr, 16);
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if (CRC <= std::numeric_limits<uint32_t>::max()) {
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object = tre->openCRC(CRC);
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}
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} catch (std::invalid_argument &ex) {
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} catch (std::out_of_range &ex) {
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}
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if (!object) // Wasn't a CRC, try as name
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object = tre->openName(objectSpec);
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mve = std::make_unique<MveDecoder>(object.data(), object.size());
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} else
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mve = std::make_unique<MveDecoder>(mmap.data(), mmap.size());
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} catch (POSIXException &ex) {
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fflush(stdout);
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fprintf(stderr, "%s\n", ex.toString().c_str());
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return 2;
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} catch (Exception &ex) {
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fflush(stdout);
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fprintf(stderr, "%s\n", ex.toString().c_str());
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return 3;
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}
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return 0;
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}
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