Backed out changeset e3fcdad257fc - testaudiocapture.c already does what we want
Sam Lantinga
parent
570e286fd6
commit
60ba8552d8
|
|
@ -9,7 +9,6 @@ LIBS = @LIBS@
|
|||
|
||||
TARGETS = \
|
||||
checkkeys$(EXE) \
|
||||
loopbackaudio$(EXE) \
|
||||
loopwave$(EXE) \
|
||||
loopwavequeue$(EXE) \
|
||||
testatomic$(EXE) \
|
||||
|
|
@ -76,9 +75,6 @@ Makefile: $(srcdir)/Makefile.in
|
|||
checkkeys$(EXE): $(srcdir)/checkkeys.c
|
||||
$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
|
||||
|
||||
loopbackaudio$(EXE): $(srcdir)/loopbackaudio.c
|
||||
$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
|
||||
|
||||
loopwave$(EXE): $(srcdir)/loopwave.c
|
||||
$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
|
||||
|
||||
|
|
|
|||
|
|
@ -2,7 +2,6 @@
|
|||
These are test programs for the SDL library:
|
||||
|
||||
checkkeys Watch the key events to check the keyboard
|
||||
loopbackaudio Audio test -- record from the microphone and play it back immediately
|
||||
loopwave Audio test -- loop playing a WAV file
|
||||
loopwavequeue Audio test -- loop playing a WAV file with SDL_QueueAudio
|
||||
testaudioinfo Lists audio device capabilities
|
||||
|
|
|
|||
|
|
@ -1,166 +0,0 @@
|
|||
/*
|
||||
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely.
|
||||
*/
|
||||
|
||||
/* Program to record audio from the microphone and play it back immediately */
|
||||
|
||||
#include "SDL_config.h"
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#if HAVE_SIGNAL_H
|
||||
#include <signal.h>
|
||||
#endif
|
||||
|
||||
#ifdef __EMSCRIPTEN__
|
||||
#include <emscripten/emscripten.h>
|
||||
#endif
|
||||
|
||||
#include "SDL.h"
|
||||
|
||||
static SDL_AudioDeviceID device;
|
||||
static SDL_AudioDeviceID capture;
|
||||
|
||||
static void SDLCALL
|
||||
fillerup(void *unused, Uint8 * stream, int len)
|
||||
{
|
||||
SDL_QueueAudio(device, stream, len);
|
||||
}
|
||||
|
||||
/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
|
||||
static void
|
||||
quit(int rc)
|
||||
{
|
||||
SDL_Quit();
|
||||
exit(rc);
|
||||
}
|
||||
|
||||
static void
|
||||
close_audio()
|
||||
{
|
||||
if (capture != 0) {
|
||||
SDL_CloseAudioDevice(capture);
|
||||
capture = 0;
|
||||
}
|
||||
if (device != 0) {
|
||||
SDL_CloseAudioDevice(device);
|
||||
device = 0;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
open_audio()
|
||||
{
|
||||
SDL_AudioSpec spec;
|
||||
|
||||
SDL_zero(spec);
|
||||
spec.freq = 44100;
|
||||
spec.format = AUDIO_S16;
|
||||
spec.channels = 1;
|
||||
spec.samples = 1024;
|
||||
spec.callback = fillerup;
|
||||
|
||||
capture = SDL_OpenAudioDevice(NULL, SDL_TRUE, &spec, &spec, SDL_AUDIO_ALLOW_ANY_CHANGE);
|
||||
if (!capture) {
|
||||
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't open microphone: %s\n", SDL_GetError());
|
||||
quit(2);
|
||||
}
|
||||
|
||||
spec.callback = NULL;
|
||||
|
||||
device = SDL_OpenAudioDevice(NULL, SDL_FALSE, &spec, NULL, 0);
|
||||
if (!device) {
|
||||
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't open audio: %s\n", SDL_GetError());
|
||||
quit(2);
|
||||
}
|
||||
|
||||
/* Let the audio run */
|
||||
SDL_PauseAudioDevice(capture, SDL_FALSE);
|
||||
SDL_PauseAudioDevice(device, SDL_FALSE);
|
||||
}
|
||||
|
||||
static void reopen_audio()
|
||||
{
|
||||
close_audio();
|
||||
open_audio();
|
||||
}
|
||||
|
||||
|
||||
static int done = 0;
|
||||
void
|
||||
poked(int sig)
|
||||
{
|
||||
done = 1;
|
||||
}
|
||||
|
||||
#ifdef __EMSCRIPTEN__
|
||||
void
|
||||
loop()
|
||||
{
|
||||
if(done || (SDL_GetAudioDeviceStatus(capture) != SDL_AUDIO_PLAYING) || (SDL_GetAudioDeviceStatus(device) != SDL_AUDIO_PLAYING))
|
||||
emscripten_cancel_main_loop();
|
||||
}
|
||||
#endif
|
||||
|
||||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
int i;
|
||||
|
||||
/* Enable standard application logging */
|
||||
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
|
||||
|
||||
/* Load the SDL library */
|
||||
if (SDL_Init(SDL_INIT_AUDIO|SDL_INIT_EVENTS) < 0) {
|
||||
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
|
||||
return (1);
|
||||
}
|
||||
|
||||
/* Show the list of available drivers */
|
||||
SDL_Log("Available audio drivers:");
|
||||
for (i = 0; i < SDL_GetNumAudioDrivers(); ++i) {
|
||||
SDL_Log("%i: %s", i, SDL_GetAudioDriver(i));
|
||||
}
|
||||
|
||||
SDL_Log("Using audio driver: %s\n", SDL_GetCurrentAudioDriver());
|
||||
|
||||
open_audio();
|
||||
|
||||
SDL_FlushEvents(SDL_AUDIODEVICEADDED, SDL_AUDIODEVICEREMOVED);
|
||||
|
||||
#ifdef __EMSCRIPTEN__
|
||||
emscripten_set_main_loop(loop, 0, 1);
|
||||
#else
|
||||
while (!done) {
|
||||
SDL_Event event;
|
||||
|
||||
while (SDL_PollEvent(&event) > 0) {
|
||||
if (event.type == SDL_QUIT) {
|
||||
done = 1;
|
||||
}
|
||||
if (event.type == SDL_AUDIODEVICEADDED ||
|
||||
(event.type == SDL_AUDIODEVICEREMOVED && event.adevice.iscapture && event.adevice.which == capture) ||
|
||||
(event.type == SDL_AUDIODEVICEREMOVED && !event.adevice.iscapture && event.adevice.which == device)) {
|
||||
reopen_audio();
|
||||
}
|
||||
}
|
||||
SDL_Delay(100);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Clean up on signal */
|
||||
close_audio();
|
||||
SDL_Quit();
|
||||
return (0);
|
||||
}
|
||||
|
||||
/* vi: set ts=4 sw=4 expandtab: */
|
||||
Loading…
Reference in New Issue