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/**
* SPDX-FileCopyrightText: Copyright (C) 2024 ZeldaRET
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <assert.h>
#include <math.h>
#include <string.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include "util.h"
#include "codec/codec.h"
#include "codec/uncompressed.h"
#include "codec/vadpcm.h"
#include "container/container.h"
#include "container/wav.h"
#include "container/aiff.h"
static const codec_spec codecs[] = {
{"pcm16", SAMPLE_TYPE_PCM16, 16, false, pcm16_enc_dec, pcm16_enc_dec},
{ "vadpcm", SAMPLE_TYPE_VADPCM, 9, true, vadpcm_dec, vadpcm_enc },
{ "vadpcm-half", SAMPLE_TYPE_VADPCM_HALF, 5, true, vadpcm_dec, vadpcm_enc },
// { "pcm8", SAMPLE_TYPE_PCM8, TODO, TODO, pcm8_dec, pcm8_enc },
};
static const container_spec containers[] = {
{".wav", wav_read, wav_write },
{ ".aiff", aiff_read, aiff_write},
{ ".aifc", aifc_read, aifc_write},
};
static bool
str_endswith(const char *str1, const char *str2)
{
size_t len1 = strlen(str1);
size_t len2 = strlen(str2);
if (len2 > len1)
return false;
return strequ(str1 + len1 - len2, str2);
}
NORETURN static void
help(const char *progname)
{
fprintf(stderr, "%s [--matching] out_codec_name in_path out_path\n", progname);
fprintf(stderr, "Supported codecs:\n");
fprintf(stderr, " pcm16\n");
fprintf(stderr, " vadpcm\n");
fprintf(stderr, " vadpcm-half\n");
fprintf(stderr, "Possible input/output formats with supported codecs, automatically selected by file extension:\n");
fprintf(stderr, " wav [pcm16]\n");
fprintf(stderr, " aiff [pcm16]\n");
fprintf(stderr, " aifc [vadpcm, vadpcm-half]\n");
exit(EXIT_FAILURE);
}
NORETURN static void
usage(const char *progname)
{
fprintf(stderr, "%s [--matching] out_codec_name in_path out_path\n", progname);
exit(EXIT_FAILURE);
}
static const codec_spec *
codec_from_name(const char *name)
{
for (size_t i = 0; i < ARRAY_COUNT(codecs); i++) {
if (strequ(name, codecs[i].name))
return &codecs[i];
}
return NULL;
}
static const codec_spec *
codec_from_type(sample_data_type type)
{
for (size_t i = 0; i < ARRAY_COUNT(codecs); i++) {
if (type == codecs[i].type)
return &codecs[i];
}
return NULL;
}
static const container_spec *
container_from_name(const char *name)
{
for (size_t i = 0; i < ARRAY_COUNT(containers); i++) {
if (str_endswith(name, containers[i].fext))
return &containers[i];
}
return NULL;
}
int
main(int argc, char **argv)
{
const char *progname = argv[0];
// Required arguments
const char *in_path = NULL;
const char *out_path = NULL;
const char *out_codec_name = NULL;
// Optional arguments
enc_dec_opts opts = {
.matching = false,
// VADPCM
.truncate = false,
.min_loop_length = 800,
.design.order = 2,
.design.bits = 2,
.design.refine_iters = 2,
.design.thresh = 10.0,
.design.frame_size = 16,
};
// parse args
#define arg_error(fmt, ...) \
do { \
fprintf(stderr, fmt "\n", ##__VA_ARGS__); \
usage(progname); \
} while (0)
int argn = 0;
for (int i = 1; i < argc; i++) {
if (argv[i][0] == '-') {
// Optional args
if (strequ(argv[i], "--help")) {
help(progname);
} else if (strequ(argv[i], "--matching")) {
if (opts.matching)
arg_error("Received --matching option twice");
opts.matching = true;
continue;
}
arg_error("Unknown option \"%s\"", argv[i]);
} else {
// Required args
switch (argn) {
case 0:
out_codec_name = argv[i];
break;
case 1:
in_path = argv[i];
break;
case 2:
out_path = argv[i];
break;
default:
arg_error("Unknown positional argument \"%s\"", argv[i]);
break;
}
argn++;
}
}
if (argn != 3)
arg_error("Not enough positional arguments");
#undef arg_error
const container_spec *in_container = container_from_name(in_path);
if (in_container == NULL)
error("Unsupported input format");
const container_spec *out_container = container_from_name(out_path);
if (out_container == NULL)
error("Unsupported output format");
const codec_spec *out_codec = codec_from_name(out_codec_name);
if (out_codec == NULL)
error("Unrecognized output codec: \"%s\"", out_codec_name);
container_data ctnr;
// Read input from container
if (in_container->read(&ctnr, in_path, opts.matching))
error("Error reading input file");
// Determine input codec from input container automatically
const codec_spec *in_codec = codec_from_type(ctnr.data_type);
if (in_codec == NULL)
error("Unrecognized input codec: type=%d", ctnr.data_type);
// Decode to PCM16 (this does nothing if in_codec is PCM16)
if (in_codec->decode(&ctnr, in_codec, &opts))
error("Error in decoding");
// Encode to output (this does nothing if out_codec is PCM16)
if (out_codec->encode(&ctnr, out_codec, &opts))
error("Error in encoding");
// Write output to container
if (out_container->write(&ctnr, out_path, opts.matching))
error("Error reading output file");
container_destroy(&ctnr);
return EXIT_SUCCESS;
}
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