mirror of
https://github.com/Relintai/sdl2_frt.git
synced 2024-12-16 11:06:49 +01:00
dad420670f
If the app is in landscape mode and the user presses the power button, a pause is followed immediately by a surfaceChanged event because the lock screen is shown in portrait mode. This triggers a "false" resume. So, we just pause and resume following the onWindowFocusChanged events. Also, wait for SDL_APP_WILLENTERBACKGROUND and SDL_APP_DIDENTERBACKGROUND before blocking the event pump.
116 lines
3.4 KiB
C
116 lines
3.4 KiB
C
/*
|
|
Copyright (C) 1997-2013 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.
|
|
*/
|
|
#include <stdio.h>
|
|
#include "SDL.h"
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
SDL_AudioSpec spec;
|
|
SDL_AudioCVT cvt;
|
|
Uint32 len = 0;
|
|
Uint8 *data = NULL;
|
|
int cvtfreq = 0;
|
|
int bitsize = 0;
|
|
int blockalign = 0;
|
|
int avgbytes = 0;
|
|
SDL_RWops *io = NULL;
|
|
|
|
if (argc != 4) {
|
|
fprintf(stderr, "USAGE: %s in.wav out.wav newfreq\n", argv[0]);
|
|
return 1;
|
|
}
|
|
|
|
cvtfreq = SDL_atoi(argv[3]);
|
|
|
|
if (SDL_Init(SDL_INIT_AUDIO) == -1) {
|
|
fprintf(stderr, "SDL_Init() failed: %s\n", SDL_GetError());
|
|
return 2;
|
|
}
|
|
|
|
if (SDL_LoadWAV(argv[1], &spec, &data, &len) == NULL) {
|
|
fprintf(stderr, "failed to load %s: %s\n", argv[1], SDL_GetError());
|
|
SDL_Quit();
|
|
return 3;
|
|
}
|
|
|
|
if (SDL_BuildAudioCVT(&cvt, spec.format, spec.channels, spec.freq,
|
|
spec.format, spec.channels, cvtfreq) == -1) {
|
|
fprintf(stderr, "failed to build CVT: %s\n", SDL_GetError());
|
|
SDL_FreeWAV(data);
|
|
SDL_Quit();
|
|
return 4;
|
|
}
|
|
|
|
cvt.len = len;
|
|
cvt.buf = (Uint8 *) SDL_malloc(len * cvt.len_mult);
|
|
if (cvt.buf == NULL) {
|
|
fprintf(stderr, "Out of memory.\n");
|
|
SDL_FreeWAV(data);
|
|
SDL_Quit();
|
|
return 5;
|
|
}
|
|
SDL_memcpy(cvt.buf, data, len);
|
|
|
|
if (SDL_ConvertAudio(&cvt) == -1) {
|
|
fprintf(stderr, "Conversion failed: %s\n", SDL_GetError());
|
|
SDL_free(cvt.buf);
|
|
SDL_FreeWAV(data);
|
|
SDL_Quit();
|
|
return 6;
|
|
}
|
|
|
|
/* write out a WAV header... */
|
|
io = SDL_RWFromFile(argv[2], "wb");
|
|
if (io == NULL) {
|
|
fprintf(stderr, "fopen('%s') failed: %s\n", argv[2], SDL_GetError());
|
|
SDL_free(cvt.buf);
|
|
SDL_FreeWAV(data);
|
|
SDL_Quit();
|
|
return 7;
|
|
}
|
|
|
|
bitsize = SDL_AUDIO_BITSIZE(spec.format);
|
|
blockalign = (bitsize / 8) * spec.channels;
|
|
avgbytes = cvtfreq * blockalign;
|
|
|
|
SDL_WriteLE32(io, 0x46464952); /* RIFF */
|
|
SDL_WriteLE32(io, len * cvt.len_mult + 36);
|
|
SDL_WriteLE32(io, 0x45564157); /* WAVE */
|
|
SDL_WriteLE32(io, 0x20746D66); /* fmt */
|
|
SDL_WriteLE32(io, 16); /* chunk size */
|
|
SDL_WriteLE16(io, 1); /* uncompressed */
|
|
SDL_WriteLE16(io, spec.channels); /* channels */
|
|
SDL_WriteLE32(io, cvtfreq); /* sample rate */
|
|
SDL_WriteLE32(io, avgbytes); /* average bytes per second */
|
|
SDL_WriteLE16(io, blockalign); /* block align */
|
|
SDL_WriteLE16(io, bitsize); /* significant bits per sample */
|
|
SDL_WriteLE32(io, 0x61746164); /* data */
|
|
SDL_WriteLE32(io, cvt.len_cvt); /* size */
|
|
SDL_RWwrite(io, cvt.buf, cvt.len_cvt, 1);
|
|
|
|
if (SDL_RWclose(io) == -1) {
|
|
fprintf(stderr, "fclose('%s') failed: %s\n", argv[2], SDL_GetError());
|
|
SDL_free(cvt.buf);
|
|
SDL_FreeWAV(data);
|
|
SDL_Quit();
|
|
return 8;
|
|
} // if
|
|
|
|
SDL_free(cvt.buf);
|
|
SDL_FreeWAV(data);
|
|
SDL_Quit();
|
|
return 0;
|
|
} // main
|
|
|
|
// end of resample_test.c ...
|