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Added testresample.c

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icculus committed Jan 11, 2009
1 parent eb4cdf6 commit ebd21ea117e65b5a784a533aa21f5011b143994b
Showing with 116 additions and 1 deletion.
  1. +4 −1 test/Makefile.in
  2. +112 −0 test/testresample.c
@@ -7,7 +7,7 @@ EXE = @EXE@
CFLAGS = @CFLAGS@
LIBS = @LIBS@

TARGETS = checkkeys$(EXE) graywin$(EXE) loopwave$(EXE) testaudioinfo$(EXE) testmultiaudio$(EXE) testalpha$(EXE) testbitmap$(EXE) testblitspeed$(EXE) testcdrom$(EXE) testcursor$(EXE) testintersections$(EXE) testdraw2$(EXE) testdyngl$(EXE) testerror$(EXE) testfile$(EXE) testgamma$(EXE) testgl$(EXE) testgl2$(EXE) testhread$(EXE) testiconv$(EXE) testjoystick$(EXE) testkeys$(EXE) testlock$(EXE) testoverlay2$(EXE) testoverlay$(EXE) testpalette$(EXE) testplatform$(EXE) testsem$(EXE) testsprite$(EXE) testsprite2$(EXE) testtimer$(EXE) testver$(EXE) testvidinfo$(EXE) testwin$(EXE) testwm$(EXE) testwm2$(EXE) threadwin$(EXE) torturethread$(EXE) testloadso$(EXE) testhaptic$(EXE) testmmousetablet$(EXE)
TARGETS = checkkeys$(EXE) graywin$(EXE) loopwave$(EXE) testresample$(EXE) testaudioinfo$(EXE) testmultiaudio$(EXE) testalpha$(EXE) testbitmap$(EXE) testblitspeed$(EXE) testcdrom$(EXE) testcursor$(EXE) testintersections$(EXE) testdraw2$(EXE) testdyngl$(EXE) testerror$(EXE) testfile$(EXE) testgamma$(EXE) testgl$(EXE) testgl2$(EXE) testhread$(EXE) testiconv$(EXE) testjoystick$(EXE) testkeys$(EXE) testlock$(EXE) testoverlay2$(EXE) testoverlay$(EXE) testpalette$(EXE) testplatform$(EXE) testsem$(EXE) testsprite$(EXE) testsprite2$(EXE) testtimer$(EXE) testver$(EXE) testvidinfo$(EXE) testwin$(EXE) testwm$(EXE) testwm2$(EXE) threadwin$(EXE) torturethread$(EXE) testloadso$(EXE) testhaptic$(EXE) testmmousetablet$(EXE)

all: Makefile $(TARGETS)

@@ -23,6 +23,9 @@ graywin$(EXE): $(srcdir)/graywin.c
loopwave$(EXE): $(srcdir)/loopwave.c
$(CC) -o $@ $? $(CFLAGS) $(LIBS)

testresample$(EXE): $(srcdir)/testresample.c
$(CC) -o $@ $? $(CFLAGS) $(LIBS)

testaudioinfo$(EXE): $(srcdir)/testaudioinfo.c
$(CC) -o $@ $? $(CFLAGS) $(LIBS)

@@ -0,0 +1,112 @@
#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 = 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 *) malloc(len * cvt.len_mult);
if (cvt.buf == NULL)
{
fprintf(stderr, "Out of memory.\n");
SDL_FreeWAV(data);
SDL_Quit();
return 5;
}
memcpy(cvt.buf, data, len);

if (SDL_ConvertAudio(&cvt) == -1)
{
fprintf(stderr, "Conversion failed: %s\n", SDL_GetError());
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());
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, len * cvt.len_mult); /* size */
SDL_RWwrite(io, cvt.buf, len * cvt.len_mult, 1);

if (SDL_RWclose(io) == -1)
{
fprintf(stderr, "fclose('%s') failed: %s\n", argv[2], SDL_GetError());
free(cvt.buf);
SDL_FreeWAV(data);
SDL_Quit();
return 8;
} // if

free(cvt.buf);
SDL_FreeWAV(data);
SDL_Quit();
return 0;
} // main

// end of resample_test.c ...

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