47 lines
1.8 KiB
C++
47 lines
1.8 KiB
C++
// Standalone self-test for the JOC bitstream gate.
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//
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// scan_selftest <file.eac3> [more files...]
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//
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// Prints, per file, how many of the first syncframes carry the JOC EMDF container.
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// Run it against a known JOC stream and against one whose extension has been
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// stripped (ffmpeg -c copy -bsf:a eac3_core): the first must report every frame
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// with JOC, the second none.
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#include <cstdio>
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#include <cstdlib>
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#include <vector>
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#include "../src/eac3_scan.h"
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int main(int argc, char** argv) {
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if (argc < 2) {
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std::fprintf(stderr, "usage: scan_selftest <file> [more files...]\n");
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return 2;
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}
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int failures = 0;
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for (int i = 1; i < argc; ++i) {
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std::FILE* file = std::fopen(argv[i], "rb");
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if (file == nullptr) {
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std::fprintf(stderr, "%s: cannot open\n", argv[i]);
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++failures;
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continue;
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}
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std::vector<unsigned char> buffer(256u * 1024u);
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const std::size_t got = std::fread(buffer.data(), 1, buffer.size(), file);
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std::fclose(file);
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const joc_eac3::ScanResult result = joc_eac3::scan(buffer.data(), got, 64);
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const char* state = "unknown";
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if (result.joc == joc_eac3::JocState::kYes) state = "JOC";
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else if (result.joc == joc_eac3::JocState::kNo) state = "not-JOC";
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std::printf("%-28s %-8s frames=%llu with_joc=%llu first_frame=%llu same_size=%s\n",
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argv[i], state, static_cast<unsigned long long>(result.frames_examined),
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static_cast<unsigned long long>(result.frames_with_joc),
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static_cast<unsigned long long>(result.first_frame_bytes),
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result.all_frames_same_size ? "yes" : "no");
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std::printf("%-28s %s\n", "", result.detail);
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}
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return failures == 0 ? 0 : 1;
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}
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