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81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
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#define VOCLIB_IMPLEMENTATION
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#include "ma_vocoder_node.h"
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MA_API ma_vocoder_node_config ma_vocoder_node_config_init(ma_uint32 channels, ma_uint32 sampleRate)
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{
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ma_vocoder_node_config config;
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MA_ZERO_OBJECT(&config);
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config.nodeConfig = ma_node_config_init(); /* Input and output channels will be set in ma_vocoder_node_init(). */
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config.channels = channels;
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config.sampleRate = sampleRate;
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config.bands = 16;
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config.filtersPerBand = 6;
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return config;
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}
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static void ma_vocoder_node_process_pcm_frames(ma_node* pNode, const float** ppFramesIn, ma_uint32* pFrameCountIn, float** ppFramesOut, ma_uint32* pFrameCountOut)
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{
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ma_vocoder_node* pVocoderNode = (ma_vocoder_node*)pNode;
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(void)pFrameCountIn;
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voclib_process(&pVocoderNode->voclib, ppFramesIn[0], ppFramesIn[1], ppFramesOut[0], *pFrameCountOut);
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}
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static ma_node_vtable g_ma_vocoder_node_vtable =
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{
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ma_vocoder_node_process_pcm_frames,
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NULL,
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2, /* 2 input channels. */
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1, /* 1 output channel. */
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0
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};
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MA_API ma_result ma_vocoder_node_init(ma_node_graph* pNodeGraph, const ma_vocoder_node_config* pConfig, const ma_allocation_callbacks* pAllocationCallbacks, ma_vocoder_node* pVocoderNode)
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{
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ma_result result;
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ma_node_config baseConfig;
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ma_uint32 inputChannels[2];
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ma_uint32 outputChannels[1];
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if (pVocoderNode == NULL) {
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return MA_INVALID_ARGS;
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}
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MA_ZERO_OBJECT(pVocoderNode);
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if (pConfig == NULL) {
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return MA_INVALID_ARGS;
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}
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if (voclib_initialize(&pVocoderNode->voclib, (unsigned char)pConfig->bands, (unsigned char)pConfig->filtersPerBand, (unsigned int)pConfig->sampleRate, (unsigned char)pConfig->channels) == 0) {
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return MA_INVALID_ARGS;
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}
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inputChannels [0] = pConfig->channels; /* Source/carrier. */
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inputChannels [1] = 1; /* Excite/modulator. Must always be single channel. */
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outputChannels[0] = pConfig->channels; /* Output channels is always the same as the source/carrier. */
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baseConfig = pConfig->nodeConfig;
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baseConfig.vtable = &g_ma_vocoder_node_vtable;
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baseConfig.pInputChannels = inputChannels;
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baseConfig.pOutputChannels = outputChannels;
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result = ma_node_init(pNodeGraph, &baseConfig, pAllocationCallbacks, &pVocoderNode->baseNode);
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if (result != MA_SUCCESS) {
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return result;
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}
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return MA_SUCCESS;
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}
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MA_API void ma_vocoder_node_uninit(ma_vocoder_node* pVocoderNode, const ma_allocation_callbacks* pAllocationCallbacks)
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{
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/* The base node must always be initialized first. */
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ma_node_uninit(pVocoderNode, pAllocationCallbacks);
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}
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