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Added "artist" and "title" (=frequency) info chunks to WAV files

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This commit is contained in:
furrtek 2017-08-12 14:29:54 +01:00
parent 7f97a090e4
commit 96880d2fc6
5 changed files with 53 additions and 17 deletions
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36
firmware/application/io_wave.hpp
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@ -27,8 +27,7 @@
#include "file.hpp"
#include "optional.hpp"
#include <cstddef>
#include <cstdint>
#include <string.h>
struct fmt_pcm_t {
constexpr fmt_pcm_t(
@ -64,8 +63,9 @@ private:
struct header_t {
constexpr header_t(
const uint32_t sampling_rate,
const uint32_t data_chunk_size
) : cksize { sizeof(header_t) + data_chunk_size - 8 },
const uint32_t data_chunk_size,
const uint32_t info_chunk_size
) : cksize { sizeof(header_t) + data_chunk_size + info_chunk_size - 8 },
fmt { sampling_rate },
data { data_chunk_size }
{
@ -79,6 +79,27 @@ private:
data_t data;
};
struct tags_t {
constexpr tags_t(
const std::string& title_str
)
{
strcpy(title, title_str.c_str());
cksize = sizeof(tags_t) - 8;
}
private:
uint8_t list_id[4] { 'L', 'I', 'S', 'T' };
uint32_t cksize { 0 };
uint8_t info_id[4] { 'I', 'N', 'F', 'O' };
uint8_t iart_id[4] { 'I', 'A', 'R', 'T' };
uint32_t sckiart_size { 12 };
char artist[12] { "PortaPack\0\0" };
uint8_t inam_id[4] { 'I', 'N', 'A', 'M' };
uint32_t sckinam_size { 64 };
char title[64] { 0 };
};
class WAVFileReader : public FileReader {
public:
WAVFileReader() = default;
@ -145,16 +166,21 @@ public:
WAVFileWriter& operator=(WAVFileWriter&&) = delete;
~WAVFileWriter() {
write_tags();
update_header();
}
Optional<File::Error> create(
const std::filesystem::path& filename,
size_t sampling_rate
size_t sampling_rate,
std::string title_set
);
private:
uint32_t sampling_rate { 0 };
uint32_t info_chunk_size { 0 };
std::string title { };
Optional<File::Error> update_header();
Optional<File::Error> write_tags();
};