mirror of
https://github.com/cookiengineer/audacity
synced 2025-05-13 15:38:56 +02:00
133 lines
2.6 KiB
C++
133 lines
2.6 KiB
C++
/******************************************/
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/*
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play_raw.c
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by Gary P. Scavone, 2001
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Play a raw file. It is necessary that the
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file be of the same format as defined below.
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Uses blocking functionality.
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*/
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/******************************************/
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#include "RtAudio.h"
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#include <iostream>
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#include <stdio.h>
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/*
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typedef char MY_TYPE;
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#define FORMAT RTAUDIO_SINT8
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#define SCALE 127.0
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typedef signed short MY_TYPE;
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#define FORMAT RTAUDIO_SINT16
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#define SCALE 32767.0
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typedef signed long MY_TYPE;
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#define FORMAT RTAUDIO_SINT24
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#define SCALE 8388607.0
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typedef signed long MY_TYPE;
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#define FORMAT RTAUDIO_SINT32
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#define SCALE 2147483647.0
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*/
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typedef float MY_TYPE;
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#define FORMAT RTAUDIO_FLOAT32
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#define SCALE 1.0;
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/*
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typedef double MY_TYPE;
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#define FORMAT RTAUDIO_FLOAT64
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#define SCALE 1.0;
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*/
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void usage(void) {
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/* Error function in case of incorrect command-line
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argument specifications
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*/
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std::cout << "\nuseage: play_raw N fs file <device>\n";
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std::cout << " where N = number of channels,\n";
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std::cout << " fs = the sample rate, \n";
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std::cout << " file = the raw file to play,\n";
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std::cout << " and device = the device to use (default = 0).\n\n";
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exit(0);
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}
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int main(int argc, char *argv[])
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{
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int chans, fs, buffer_size, count, device = 0;
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long counter = 0;
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MY_TYPE *buffer;
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char *file;
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FILE *fd;
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RtAudio *audio;
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// minimal command-line checking
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if (argc != 4 && argc != 5 ) usage();
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chans = (int) atoi(argv[1]);
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fs = (int) atoi(argv[2]);
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file = argv[3];
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if ( argc == 5 )
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device = (int) atoi(argv[4]);
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fd = fopen(file,"rb");
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if (!fd) {
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std::cout << "can't find file!\n";
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exit(0);
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}
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// Open the realtime output device
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buffer_size = 512;
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try {
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audio = new RtAudio(device, chans, 0, 0,
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FORMAT, fs, &buffer_size, 2);
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}
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catch (RtError &error) {
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fclose(fd);
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error.printMessage();
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exit(EXIT_FAILURE);
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}
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try {
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buffer = (MY_TYPE *) audio->getStreamBuffer();
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audio->startStream();
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}
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catch (RtError &error) {
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error.printMessage();
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goto cleanup;
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}
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while (1) {
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count = fread(buffer, chans * sizeof(MY_TYPE), buffer_size, fd);
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if (count == buffer_size) {
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try {
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audio->tickStream();
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}
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catch (RtError &error) {
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error.printMessage();
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goto cleanup;
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}
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}
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else
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break;
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counter += buffer_size;
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}
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try {
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audio->stopStream();
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}
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catch (RtError &error) {
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error.printMessage();
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}
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cleanup:
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audio->closeStream();
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delete audio;
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fclose(fd);
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return 0;
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}
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