transition-cut.c 1.7 KB

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  1. #include <obs-module.h>
  2. struct cut_info {
  3. obs_source_t *source;
  4. };
  5. static const char *cut_get_name(void *type_data)
  6. {
  7. UNUSED_PARAMETER(type_data);
  8. return obs_module_text("CutTransition");
  9. }
  10. static void *cut_create(obs_data_t *settings, obs_source_t *source)
  11. {
  12. struct cut_info *cut;
  13. cut = bmalloc(sizeof(*cut));
  14. cut->source = source;
  15. obs_transition_enable_fixed(source, true, 0);
  16. UNUSED_PARAMETER(settings);
  17. return cut;
  18. }
  19. static void cut_destroy(void *data)
  20. {
  21. struct cut_info *cut = data;
  22. bfree(cut);
  23. }
  24. static void cut_video_render(void *data, gs_effect_t *effect)
  25. {
  26. struct cut_info *cut = data;
  27. obs_transition_video_render(cut->source, NULL);
  28. UNUSED_PARAMETER(effect);
  29. }
  30. static float mix_a(void *data, float t)
  31. {
  32. UNUSED_PARAMETER(data);
  33. return 1.0f - t;
  34. }
  35. static float mix_b(void *data, float t)
  36. {
  37. UNUSED_PARAMETER(data);
  38. return t;
  39. }
  40. static bool cut_audio_render(void *data, uint64_t *ts_out, struct obs_source_audio_mix *audio, uint32_t mixers,
  41. size_t channels, size_t sample_rate)
  42. {
  43. struct cut_info *cut = data;
  44. return obs_transition_audio_render(cut->source, ts_out, audio, mixers, channels, sample_rate, mix_a, mix_b);
  45. }
  46. static enum gs_color_space cut_video_get_color_space(void *data, size_t count,
  47. const enum gs_color_space *preferred_spaces)
  48. {
  49. UNUSED_PARAMETER(count);
  50. UNUSED_PARAMETER(preferred_spaces);
  51. struct cut_info *const cut = data;
  52. return obs_transition_video_get_color_space(cut->source);
  53. }
  54. struct obs_source_info cut_transition = {
  55. .id = "cut_transition",
  56. .type = OBS_SOURCE_TYPE_TRANSITION,
  57. .get_name = cut_get_name,
  58. .create = cut_create,
  59. .destroy = cut_destroy,
  60. .video_render = cut_video_render,
  61. .audio_render = cut_audio_render,
  62. .video_get_color_space = cut_video_get_color_space,
  63. };