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libobs: Do not use signals with audio capture/controls

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(Note: This commit also modifies UI)

Instead of using signals, use designated callback lists for audio
capture and audio control helpers.  Signals aren't suitable here due to
the fact that signals aren't meant for things that happen every frame or
things that happen every time audio/video is received.  Also prevents
audio from being allocated every time these functions are called due to
the calldata structure.
This commit is contained in:
jp9000
2016-01-07 19:48:36 -08:00
parent 46bb2622c4
commit 669da7ba36
7 changed files with 176 additions and 106 deletions
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20
libobs/obs-audio-controls.h
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@@ -154,12 +154,12 @@ EXPORT bool obs_fader_attach_source(obs_fader_t *fader, obs_source_t *source);
*/
EXPORT void obs_fader_detach_source(obs_fader_t *fader);
/**
* @brief Get signal handler for the fader
* @param fader pointer to the fader object
* @return signal handler
*/
EXPORT signal_handler_t *obs_fader_get_signal_handler(obs_fader_t *fader);
typedef void (*obs_fader_changed_t)(void *param, float db);
EXPORT void obs_fader_add_callback(obs_fader_t *fader,
obs_fader_changed_t callback, void *param);
EXPORT void obs_fader_remove_callback(obs_fader_t *fader,
obs_fader_changed_t callback, void *param);
/**
* @brief Create a volume meter
@@ -251,6 +251,14 @@ EXPORT void obs_volmeter_set_peak_hold(obs_volmeter_t *volmeter,
*/
EXPORT unsigned int obs_volmeter_get_peak_hold(obs_volmeter_t *volmeter);
typedef void (*obs_volmeter_updated_t)(void *param, float level,
float magnitude, float peak, float muted);
EXPORT void obs_volmeter_add_callback(obs_volmeter_t *volmeter,
obs_volmeter_updated_t callback, void *param);
EXPORT void obs_volmeter_remove_callback(obs_volmeter_t *volmeter,
obs_volmeter_updated_t callback, void *param);
#ifdef __cplusplus
}
#endif