6285a47726
API changed from: obs_source_info::get_name(void) obs_output_info::get_name(void) obs_encoder_info::get_name(void) obs_service_info::get_name(void) API changed to: obs_source_info::get_name(void *type_data) obs_output_info::get_name(void *type_data) obs_encoder_info::get_name(void *type_data) obs_service_info::get_name(void *type_data) This allows the type data to be used when getting the name of the object (useful for plugin wrappers primarily). NOTE: Though a parameter was added, this is backward-compatible with older plugins due to calling convention. The new parameter will simply be ignored by older plugins, and the stack (if used) will be cleaned up by the caller.
97 lines
2.1 KiB
C
97 lines
2.1 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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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->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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float *adata[2] = {(float*)audio->data[0], (float*)audio->data[1]};
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const float multiple = gf->multiple;
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for (size_t c = 0; c < 2; 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,
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-30.0, 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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