Here are the data structures with brief descriptions:
  bg_audio_info_t | Description of an audio stream |
| bg_codec_plugin_s | Codec plugin |
| bg_device_info_t | Device description |
| bg_e_pp_callbacks_t | Callbacks for postprocessing |
| bg_encoder_callbacks_s | Callbacks for the encoder plugin |
| bg_encoder_plugin_s | Encoder plugin |
| bg_encoder_pp_plugin_s | Encoding postprocessor |
| bg_fa_plugin_s | Audio filter plugin |
| bg_fv_plugin_s | Video filter plugin |
| bg_image_reader_plugin_s | Image reader plugin |
| bg_image_writer_plugin_s | Image writer plugin |
| bg_input_callbacks_s | Callbacks for input plugins |
| bg_input_plugin_s | Input plugin |
| bg_iw_callbacks_s | Callbacks for the image writer plugin |
| bg_oa_plugin_s | Audio output plugin |
| bg_ov_callbacks_s | Callbacks for the video output plugin |
| bg_ov_plugin_s | Video output plugin |
| bg_overlay_info_t | Description of an overlay stream |
| bg_parameter_info_s | Parmeter description |
| bg_parameter_value_t | Container for a parameter value |
| bg_plugin_common_s | Base structure common to all plugins |
| bg_plugin_handle_s | Handle of a loaded plugin |
| bg_plugin_info_s | Information about a plugin |
| bg_plugin_registry_options_t | Creation options for a plugin registry |
| bg_recorder_callbacks_s | Callbacks for recorder plugins |
| bg_recorder_plugin_s | Recorder |
| bg_subprocess_t | Subprocess handle |
| bg_text_info_t | Description of a text stream |
| bg_track_info_t | Track info |
| bg_video_info_t | Description of a video stream |
 bg_visualization_plugin_s | Audio visualization plugin |
