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/*
* aptX encoder utility
* Copyright (C) 2018-2020 Pali Rohár <pali.rohar@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <string.h>
#ifdef _WIN32
#include <fcntl.h>
#include <io.h>
#endif
#include <openaptx.h>
static unsigned char input_buffer[512*3*2*4];
static unsigned char output_buffer[512*6];
int main(int argc, char *argv[])
{
int i;
int hd;
int ret;
size_t length;
size_t processed;
size_t written;
struct aptx_context *ctx;
#ifdef _WIN32
_setmode(_fileno(stdin), _O_BINARY);
_setmode(_fileno(stdout), _O_BINARY);
#endif
hd = 0;
for (i = 1; i < argc; ++i) {
if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0) {
fprintf(stderr, "aptX encoder utility %d.%d.%d (using libopenaptx %d.%d.%d)\n", OPENAPTX_MAJOR, OPENAPTX_MINOR, OPENAPTX_PATCH, aptx_major, aptx_minor, aptx_patch);
fprintf(stderr, "\n");
fprintf(stderr, "This utility encodes a raw 24 bit signed stereo\n");
fprintf(stderr, "samples from stdin to aptX or aptX HD on stdout\n");
fprintf(stderr, "\n");
fprintf(stderr, "Usage:\n");
fprintf(stderr, " %s [options]\n", argv[0]);
fprintf(stderr, "\n");
fprintf(stderr, "Options:\n");
fprintf(stderr, " -h, --help Display this help\n");
fprintf(stderr, " --hd Encode to aptX HD\n");
fprintf(stderr, "\n");
fprintf(stderr, "Examples:\n");
fprintf(stderr, "\n");
fprintf(stderr, " %s < sample.s24le > sample.aptx\n", argv[0]);
fprintf(stderr, "\n");
fprintf(stderr, " %s --hd < sample.s24le > sample.aptxhd\n", argv[0]);
fprintf(stderr, "\n");
fprintf(stderr, " sox sample.wav -t raw -r 44.1k -L -e s -b 24 -c 2 - | %s > sample.aptx\n", argv[0]);
return 1;
} else if (strcmp(argv[i], "--hd") == 0) {
hd = 1;
} else {
fprintf(stderr, "%s: Invalid option %s\n", argv[0], argv[i]);
return 1;
}
}
ctx = aptx_init(hd);
if (!ctx) {
fprintf(stderr, "%s: Cannot initialize aptX encoder\n", argv[0]);
return 1;
}
ret = 0;
while (!feof(stdin)) {
length = fread(input_buffer, 1, sizeof(input_buffer), stdin);
if (ferror(stdin)) {
fprintf(stderr, "%s: aptX encoding failed to read input data\n", argv[0]);
ret = 1;
}
if (length == 0)
break;
processed = aptx_encode(ctx, input_buffer, length, output_buffer, sizeof(output_buffer), &written);
if (processed != length) {
fprintf(stderr, "%s: aptX encoding stopped in the middle of the sample, dropped %lu byte%s\n", argv[0], (unsigned long)(length-processed), (length-processed != 1) ? "s" : "");
ret = 1;
}
if (fwrite(output_buffer, 1, written, stdout) != written) {
fprintf(stderr, "%s: aptX encoding failed to write encoded data\n", argv[0]);
ret = 1;
break;
}
if (processed != length)
break;
}
if (aptx_encode_finish(ctx, output_buffer, sizeof(output_buffer), &written)) {
if (fwrite(output_buffer, 1, written, stdout) != written) {
fprintf(stderr, "%s: aptX encoding failed to write encoded data\n", argv[0]);
ret = 1;
}
}
aptx_finish(ctx);
return ret;
}
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