Module ffi 

Raw FFI bindings for Core Media types.

These are low-level bindings and are not intended for direct use.

Functions

cm_block_buffer_copy_data_bytes^⚠

cm_block_buffer_create_empty^⚠

cm_block_buffer_create_with_data^⚠

cm_block_buffer_get_data_length^⚠

cm_block_buffer_get_data_pointer^⚠

cm_block_buffer_hash^⚠

cm_block_buffer_is_empty^⚠

cm_block_buffer_is_range_contiguous^⚠

cm_block_buffer_release^⚠

cm_block_buffer_retain^⚠

cm_format_description_get_audio_bits_per_channel^⚠

cm_format_description_get_audio_bytes_per_frame^⚠

cm_format_description_get_audio_channel_count^⚠

cm_format_description_get_audio_format_flags^⚠

cm_format_description_get_audio_sample_rate^⚠

cm_format_description_get_extensions^⚠

cm_format_description_get_media_subtype^⚠

cm_format_description_get_media_type^⚠

cm_format_description_hash^⚠

cm_format_description_release^⚠

cm_format_description_retain^⚠

cm_sample_buffer_copy_pcm_data_into_audio_buffer_list^⚠

cm_sample_buffer_create_cg_image^⚠

Build a retained CGImage from the sample buffer’s image buffer via VTCreateCGImageFromCVPixelBuffer. Returns null on failure with out_status set to the underlying OSStatus (0 = noErr on success).

cm_sample_buffer_create_copy_with_new_timing^⚠

cm_sample_buffer_create_for_image_buffer^⚠

cm_sample_buffer_free_dirty_rects^⚠

cm_sample_buffer_get_bounding_rect^⚠

cm_sample_buffer_get_content_rect^⚠

cm_sample_buffer_get_content_scale^⚠

cm_sample_buffer_get_data_buffer^⚠

cm_sample_buffer_get_decode_timestamp^⚠

cm_sample_buffer_get_dirty_rects^⚠

cm_sample_buffer_get_display_time^⚠

cm_sample_buffer_get_duration^⚠

cm_sample_buffer_get_format_description^⚠

cm_sample_buffer_get_frame_info^⚠

Single-call frame attachment fetch — populates out_fields with bits for each successfully-read field. See FrameInfoFields for the bit layout. Replaces the per-attribute accessors above for the hot path (one attachment-array fetch + one CF→Swift bridge cast vs. one per field), measured at ~4× faster when reading multiple fields per frame.

cm_sample_buffer_get_frame_status^⚠

cm_sample_buffer_get_num_samples^⚠

cm_sample_buffer_get_output_presentation_timestamp^⚠

cm_sample_buffer_get_presentation_timestamp^⚠

cm_sample_buffer_get_presenter_overlay_content_rect^⚠

cm_sample_buffer_get_sample_size^⚠

cm_sample_buffer_get_sample_timing_info^⚠

cm_sample_buffer_get_scale_factor^⚠

cm_sample_buffer_get_screen_rect^⚠

cm_sample_buffer_get_total_sample_size^⚠

cm_sample_buffer_hash^⚠

cm_sample_buffer_invalidate^⚠

cm_sample_buffer_is_ready_for_data_access^⚠

cm_sample_buffer_is_valid^⚠

cm_sample_buffer_make_data_ready^⚠

cm_sample_buffer_release^⚠

cm_sample_buffer_retain^⚠

cm_sample_buffer_set_output_presentation_timestamp^⚠

cv_pixel_buffer_create^⚠

cv_pixel_buffer_create_with_bytes^⚠

cv_pixel_buffer_create_with_io_surface^⚠

cv_pixel_buffer_create_with_planar_bytes^⚠

cv_pixel_buffer_fill_extended_pixels^⚠

cv_pixel_buffer_get_base_address^⚠

cv_pixel_buffer_get_base_address_of_plane^⚠

cv_pixel_buffer_get_bytes_per_row^⚠

cv_pixel_buffer_get_bytes_per_row_of_plane^⚠

cv_pixel_buffer_get_data_size^⚠

cv_pixel_buffer_get_extended_pixels^⚠

cv_pixel_buffer_get_height^⚠

cv_pixel_buffer_get_height_of_plane^⚠

cv_pixel_buffer_get_io_surface^⚠

cv_pixel_buffer_get_pixel_format_type^⚠

cv_pixel_buffer_get_plane_count^⚠

cv_pixel_buffer_get_type_id^⚠

cv_pixel_buffer_get_width^⚠

cv_pixel_buffer_get_width_of_plane^⚠

cv_pixel_buffer_hash^⚠

cv_pixel_buffer_is_planar^⚠

cv_pixel_buffer_lock_base_address^⚠

cv_pixel_buffer_release^⚠

cv_pixel_buffer_retain^⚠

cv_pixel_buffer_unlock_base_address^⚠

io_surface_decrement_use_count^⚠

io_surface_get_alloc_size^⚠

io_surface_get_base_address^⚠

io_surface_get_base_address_of_plane^⚠

io_surface_get_bytes_per_element^⚠

io_surface_get_bytes_per_row^⚠

io_surface_get_bytes_per_row_of_plane^⚠

io_surface_get_element_height^⚠

io_surface_get_element_width^⚠

io_surface_get_height^⚠

io_surface_get_height_of_plane^⚠

io_surface_get_id^⚠

io_surface_get_pixel_format^⚠

io_surface_get_plane_count^⚠

io_surface_get_seed^⚠

io_surface_get_width^⚠

io_surface_get_width_of_plane^⚠

io_surface_hash^⚠

io_surface_increment_use_count^⚠

io_surface_is_in_use^⚠

io_surface_lock^⚠

io_surface_release^⚠

io_surface_retain^⚠

io_surface_unlock^⚠