audio_effect_limiter.h 3.3 KB

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  1. /*************************************************************************/
  2. /* audio_effect_limiter.h */
  3. /*************************************************************************/
  4. /* This file is part of: */
  5. /* GODOT ENGINE */
  6. /* https://godotengine.org */
  7. /*************************************************************************/
  8. /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
  9. /* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
  10. /* */
  11. /* Permission is hereby granted, free of charge, to any person obtaining */
  12. /* a copy of this software and associated documentation files (the */
  13. /* "Software"), to deal in the Software without restriction, including */
  14. /* without limitation the rights to use, copy, modify, merge, publish, */
  15. /* distribute, sublicense, and/or sell copies of the Software, and to */
  16. /* permit persons to whom the Software is furnished to do so, subject to */
  17. /* the following conditions: */
  18. /* */
  19. /* The above copyright notice and this permission notice shall be */
  20. /* included in all copies or substantial portions of the Software. */
  21. /* */
  22. /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
  23. /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
  24. /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  25. /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
  26. /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
  27. /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
  28. /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
  29. /*************************************************************************/
  30. #ifndef AUDIO_EFFECT_LIMITER_H
  31. #define AUDIO_EFFECT_LIMITER_H
  32. #include "servers/audio/audio_effect.h"
  33. class AudioEffectLimiter;
  34. class AudioEffectLimiterInstance : public AudioEffectInstance {
  35. GDCLASS(AudioEffectLimiterInstance, AudioEffectInstance)
  36. friend class AudioEffectLimiter;
  37. Ref<AudioEffectLimiter> base;
  38. float mix_volume_db;
  39. public:
  40. virtual void process(const AudioFrame *p_src_frames, AudioFrame *p_dst_frames, int p_frame_count);
  41. };
  42. class AudioEffectLimiter : public AudioEffect {
  43. GDCLASS(AudioEffectLimiter, AudioEffect)
  44. friend class AudioEffectLimiterInstance;
  45. float threshold;
  46. float ceiling;
  47. float soft_clip;
  48. float soft_clip_ratio;
  49. protected:
  50. static void _bind_methods();
  51. public:
  52. void set_threshold_db(float p_threshold);
  53. float get_threshold_db() const;
  54. void set_ceiling_db(float p_ceiling);
  55. float get_ceiling_db() const;
  56. void set_soft_clip_db(float p_soft_clip);
  57. float get_soft_clip_db() const;
  58. void set_soft_clip_ratio(float p_soft_clip);
  59. float get_soft_clip_ratio() const;
  60. Ref<AudioEffectInstance> instance();
  61. void set_volume_db(float p_volume);
  62. float get_volume_db() const;
  63. AudioEffectLimiter();
  64. };
  65. #endif // AUDIO_EFFECT_LIMITER_H