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/*
* Copyright 2023 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include "mad.hpp"
#include <algorithm>
#include <cstdint>
#include <span>
#include "catch2/catch.hpp"
#include "test.mp3.hpp"
void load_mp3(std::span<std::byte> dest) {
std::span<std::byte> src(reinterpret_cast<std::byte*>(test_mp3),
test_mp3_len);
std::copy(src.begin(), src.begin() + dest.size(), dest.begin());
}
namespace codecs {
TEST_CASE("libmad mp3 decoder", "[unit]") {
MadMp3Decoder decoder;
SECTION("handles only mp3 types") {
REQUIRE(decoder.CanHandleType(STREAM_MP3) == true);
// REQUIRE(decoder.CanHandleFile("bad.wma") == false);
}
SECTION("processes streams correctly") {
std::array<std::byte, 2048> input;
input.fill(std::byte{0});
decoder.ResetForNewStream();
decoder.SetInput(input);
SECTION("empty stream fails gracefully") {
auto result = decoder.ProcessNextFrame();
REQUIRE(result.has_value());
REQUIRE(result.value() == true);
}
SECTION("valid stream parses successfully") {
load_mp3(input);
auto result = decoder.ProcessNextFrame();
REQUIRE(result.has_value());
REQUIRE(result.value() == false);
SECTION("output format correct") {
auto format = decoder.GetOutputFormat();
// Matches the test data.
REQUIRE(format.num_channels == 1);
REQUIRE(format.sample_rate_hz == 44100);
// Matches libmad output
REQUIRE(format.bits_per_sample == 16);
}
}
}
}
} // namespace codecs
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