diff --git a/test/testresample.c b/test/testresample.c index 3c871af20..2ce0aec06 100644 --- a/test/testresample.c +++ b/test/testresample.c @@ -16,7 +16,8 @@ int main(int argc, char **argv) { SDL_AudioSpec spec; - SDL_AudioCVT cvt; + SDL_AudioStream *stream; + Uint8 *dst_buf = NULL; Uint32 len = 0; Uint8 *data = NULL; int cvtfreq = 0; @@ -25,6 +26,8 @@ int main(int argc, char **argv) int blockalign = 0; int avgbytes = 0; SDL_RWops *io = NULL; + int src_samplesize, dst_samplesize; + int src_len, dst_len, real_dst_len; /* Enable standard application logging */ SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO); @@ -48,40 +51,65 @@ int main(int argc, char **argv) return 3; } - if (SDL_BuildAudioCVT(&cvt, spec.format, spec.channels, spec.freq, - spec.format, cvtchans, cvtfreq) == -1) { - SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "failed to build CVT: %s\n", SDL_GetError()); + + stream = SDL_CreateAudioStream(spec.format, spec.channels, spec.freq, + spec.format, cvtchans, cvtfreq); + if (stream == NULL) { + SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "failed to build audio stream: %s\n", SDL_GetError()); SDL_free(data); SDL_Quit(); return 4; } - cvt.len = len; - cvt.buf = (Uint8 *)SDL_malloc((size_t)len * cvt.len_mult); - if (cvt.buf == NULL) { + src_samplesize = (SDL_AUDIO_BITSIZE(spec.format) / 8) * spec.channels; + dst_samplesize = (SDL_AUDIO_BITSIZE(spec.format) / 8) * cvtchans; + + + src_len = len & ~(src_samplesize - 1); + dst_len = dst_samplesize * (src_len / src_samplesize); + if (spec.freq < cvtfreq) { + const double mult = ((double)cvtfreq) / ((double)spec.freq); + dst_len *= (int) SDL_ceil(mult); + } + + dst_len = dst_len & ~(dst_samplesize - 1); + dst_buf = (Uint8 *)SDL_malloc(dst_len); + if (dst_buf == NULL) { SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Out of memory.\n"); SDL_free(data); SDL_Quit(); return 5; } - SDL_memcpy(cvt.buf, data, len); - if (SDL_ConvertAudio(&cvt) == -1) { + /* Run the audio converter */ + if (SDL_PutAudioStreamData(stream, data, src_len) < 0 || + SDL_FlushAudioStream(stream) < 0) { SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Conversion failed: %s\n", SDL_GetError()); - SDL_free(cvt.buf); + SDL_free(dst_buf); SDL_free(data); SDL_Quit(); return 6; + } + real_dst_len = SDL_GetAudioStreamData(stream, dst_buf, dst_len); + if (real_dst_len < 0) { + SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Conversion failed: %s\n", SDL_GetError()); + SDL_free(dst_buf); + SDL_free(data); + SDL_Quit(); + return 7; + } + dst_len = real_dst_len; + /* write out a WAV header... */ io = SDL_RWFromFile(argv[2], "wb"); if (io == NULL) { SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "fopen('%s') failed: %s\n", argv[2], SDL_GetError()); - SDL_free(cvt.buf); + SDL_free(dst_buf); SDL_free(data); SDL_Quit(); - return 7; + return 8; } bitsize = SDL_AUDIO_BITSIZE(spec.format); @@ -89,7 +117,7 @@ int main(int argc, char **argv) avgbytes = cvtfreq * blockalign; SDL_WriteLE32(io, 0x46464952); /* RIFF */ - SDL_WriteLE32(io, cvt.len_cvt + 36); + SDL_WriteLE32(io, dst_len + 36); SDL_WriteLE32(io, 0x45564157); /* WAVE */ SDL_WriteLE32(io, 0x20746D66); /* fmt */ SDL_WriteLE32(io, 16); /* chunk size */ @@ -100,18 +128,18 @@ int main(int argc, char **argv) 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); + SDL_WriteLE32(io, dst_len); /* size */ + SDL_RWwrite(io, dst_buf, dst_len); if (SDL_RWclose(io) == -1) { SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "fclose('%s') failed: %s\n", argv[2], SDL_GetError()); - SDL_free(cvt.buf); + SDL_free(dst_buf); SDL_free(data); SDL_Quit(); - return 8; + return 9; } /* if */ - SDL_free(cvt.buf); + SDL_free(dst_buf); SDL_free(data); SDL_Quit(); return 0;