f53df7da64
Code submissions have continually suffered from formatting inconsistencies that constantly have to be addressed. Using clang-format simplifies this by making code formatting more consistent, and allows automation of the code formatting so that maintainers can focus more on the code itself instead of code formatting.
98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
#include <obs-module.h>
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#include <media-io/audio-math.h>
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#include <math.h>
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#define do_log(level, format, ...) \
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blog(level, "[gain filter: '%s'] " format, \
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obs_source_get_name(gf->context), ##__VA_ARGS__)
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#define warn(format, ...) do_log(LOG_WARNING, format, ##__VA_ARGS__)
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#define info(format, ...) do_log(LOG_INFO, format, ##__VA_ARGS__)
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#define S_GAIN_DB "db"
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#define MT_ obs_module_text
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#define TEXT_GAIN_DB MT_("Gain.GainDB")
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struct gain_data {
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obs_source_t *context;
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size_t channels;
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float multiple;
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};
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static const char *gain_name(void *unused)
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{
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UNUSED_PARAMETER(unused);
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return obs_module_text("Gain");
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}
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static void gain_destroy(void *data)
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{
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struct gain_data *gf = data;
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bfree(gf);
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}
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static void gain_update(void *data, obs_data_t *s)
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{
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struct gain_data *gf = data;
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double val = obs_data_get_double(s, S_GAIN_DB);
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gf->channels = audio_output_get_channels(obs_get_audio());
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gf->multiple = db_to_mul((float)val);
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}
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static void *gain_create(obs_data_t *settings, obs_source_t *filter)
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{
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struct gain_data *gf = bzalloc(sizeof(*gf));
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gf->context = filter;
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gain_update(gf, settings);
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return gf;
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}
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static struct obs_audio_data *gain_filter_audio(void *data,
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struct obs_audio_data *audio)
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{
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struct gain_data *gf = data;
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const size_t channels = gf->channels;
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float **adata = (float **)audio->data;
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const float multiple = gf->multiple;
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for (size_t c = 0; c < channels; c++) {
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if (audio->data[c]) {
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for (size_t i = 0; i < audio->frames; i++) {
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adata[c][i] *= multiple;
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}
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}
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}
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return audio;
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}
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static void gain_defaults(obs_data_t *s)
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{
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obs_data_set_default_double(s, S_GAIN_DB, 0.0f);
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}
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static obs_properties_t *gain_properties(void *data)
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{
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obs_properties_t *ppts = obs_properties_create();
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obs_properties_add_float_slider(ppts, S_GAIN_DB, TEXT_GAIN_DB, -30.0,
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30.0, 0.1);
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UNUSED_PARAMETER(data);
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return ppts;
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}
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struct obs_source_info gain_filter = {
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.id = "gain_filter",
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.type = OBS_SOURCE_TYPE_FILTER,
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.output_flags = OBS_SOURCE_AUDIO,
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.get_name = gain_name,
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.create = gain_create,
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.destroy = gain_destroy,
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.update = gain_update,
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.filter_audio = gain_filter_audio,
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.get_defaults = gain_defaults,
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.get_properties = gain_properties,
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};
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