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Add 1-pole high pass filter.

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This commit is contained in:
David Reid
2020-02-23 13:55:46 +10:00
parent a48c23a5a1
commit 2e1869ab1b
2 changed files with 261 additions and 15 deletions
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tests/test_filtering/ma_test_filtering_hpf.c
+99 -14
View File
@@ -1,17 +1,80 @@
ma_result test_hpf__f32(const char* pInputFilePath)
ma_result hpf_init_decoder_and_encoder(const char* pInputFilePath, const char* pOutputFilePath, ma_format format, ma_decoder* pDecoder, drwav* pEncoder)
{
return filtering_init_decoder_and_encoder(pInputFilePath, pOutputFilePath, format, 0, 0, pDecoder, pEncoder);
}
ma_result test_hpf1__by_format(const char* pInputFilePath, const char* pOutputFilePath, ma_format format)
{
ma_result result;
ma_decoder decoder;
drwav wav;
ma_hpf1_config hpfConfig;
ma_hpf1 hpf;
printf(" %s\n", pOutputFilePath);
result = hpf_init_decoder_and_encoder(pInputFilePath, pOutputFilePath, format, &decoder, &wav);
if (result != MA_SUCCESS) {
return result;
}
hpfConfig = ma_hpf1_config_init(decoder.outputFormat, decoder.outputChannels, decoder.outputSampleRate, 2000);
result = ma_hpf1_init(&hpfConfig, &hpf);
if (result != MA_SUCCESS) {
ma_decoder_uninit(&decoder);
drwav_uninit(&wav);
return result;
}
for (;;) {
ma_uint8 tempIn[4096];
ma_uint8 tempOut[4096];
ma_uint64 tempCapIn = sizeof(tempIn) / ma_get_bytes_per_frame(decoder.outputFormat, decoder.outputChannels);
ma_uint64 tempCapOut = sizeof(tempOut) / ma_get_bytes_per_frame(decoder.outputFormat, decoder.outputChannels);
ma_uint64 framesToRead;
ma_uint64 framesJustRead;
framesToRead = ma_min(tempCapIn, tempCapOut);
framesJustRead = ma_decoder_read_pcm_frames(&decoder, tempIn, framesToRead);
/* Filter */
ma_hpf1_process_pcm_frames(&hpf, tempOut, tempIn, framesJustRead);
/* Write to the WAV file. */
drwav_write_pcm_frames(&wav, framesJustRead, tempOut);
if (framesJustRead < framesToRead) {
break;
}
}
drwav_uninit(&wav);
return MA_SUCCESS;
}
ma_result test_hpf1__f32(const char* pInputFilePath)
{
return test_hpf1__by_format(pInputFilePath, "output/hpf1_f32.wav", ma_format_f32);
}
ma_result test_hpf1__s16(const char* pInputFilePath)
{
return test_hpf1__by_format(pInputFilePath, "output/hpf1_s16.wav", ma_format_f32);
}
ma_result test_hpf2__by_format(const char* pInputFilePath, const char* pOutputFilePath, ma_format format)
{
const char* pOutputFilePath = "output/hpf_f32.wav";
ma_result result;
ma_decoder_config decoderConfig;
ma_decoder decoder;
drwav_data_format wavFormat;
drwav wav;
ma_hpf2_config hpfConfig;
ma_hpf2 hpf;
decoderConfig = ma_decoder_config_init(ma_format_f32, 0, 0);
result = ma_decoder_init_file(pInputFilePath, &decoderConfig, &decoder);
printf(" %s\n", pOutputFilePath);
result = hpf_init_decoder_and_encoder(pInputFilePath, pOutputFilePath, format, &decoder, &wav);
if (result != MA_SUCCESS) {
return result;
}
@@ -20,15 +83,10 @@ ma_result test_hpf__f32(const char* pInputFilePath)
result = ma_hpf2_init(&hpfConfig, &hpf);
if (result != MA_SUCCESS) {
ma_decoder_uninit(&decoder);
drwav_uninit(&wav);
return result;
}
wavFormat = drwav_data_format_from_minaudio_format(decoder.outputFormat, decoder.outputChannels, decoder.outputSampleRate);
if (!drwav_init_file_write(&wav, pOutputFilePath, &wavFormat, NULL)) {
ma_decoder_uninit(&decoder);
return MA_ERROR;
}
for (;;) {
ma_uint8 tempIn[4096];
ma_uint8 tempOut[4096];
@@ -55,6 +113,16 @@ ma_result test_hpf__f32(const char* pInputFilePath)
return MA_SUCCESS;
}
ma_result test_hpf2__f32(const char* pInputFilePath)
{
return test_hpf2__by_format(pInputFilePath, "output/hpf2_f32.wav", ma_format_f32);
}
ma_result test_hpf2__s16(const char* pInputFilePath)
{
return test_hpf2__by_format(pInputFilePath, "output/hpf2_s16.wav", ma_format_f32);
}
int test_entry__hpf(int argc, char** argv)
{
ma_result result;
@@ -68,7 +136,24 @@ int test_entry__hpf(int argc, char** argv)
pInputFilePath = argv[1];
result = test_hpf__f32(pInputFilePath);
result = test_hpf1__f32(pInputFilePath);
if (result != MA_SUCCESS) {
hasError = MA_TRUE;
}
result = test_hpf1__s16(pInputFilePath);
if (result != MA_SUCCESS) {
hasError = MA_TRUE;
}
result = test_hpf2__f32(pInputFilePath);
if (result != MA_SUCCESS) {
hasError = MA_TRUE;
}
result = test_hpf2__s16(pInputFilePath);
if (result != MA_SUCCESS) {
hasError = MA_TRUE;
}