fixed ISM metadata preamble (b0049e19) · Commits · IVAS Codec Public Collaboration / IVAS Processing Scripts

ivas_processing_scripts/audiotools/metadata.py

+4 −8

Original line number	Diff line number	Diff line
		@@ -40,7 +40,7 @@ from ivas_processing_scripts.audiotools import audio
		from ivas_processing_scripts.audiotools.audio import fromtype
		from ivas_processing_scripts.audiotools.audioarray import trim
		from ivas_processing_scripts.audiotools.audiofile import read
		from ivas_processing_scripts.audiotools.constants import IVAS_FRAME_LEN_MS, FORMAT_ISM_METADATA_CSV, NUMBER_COLUMNS_ISM_METADATA
		from ivas_processing_scripts.audiotools.constants import IVAS_FRAME_LEN_MS, FORMAT_ISM_METADATA_CSV, NUMBER_COLUMNS_ISM_METADATA, DEFAULT_ISM_METADATA


		class Metadata:
		@@ -551,14 +551,10 @@ def add_remove_preamble(
		for obj_idx in range(len(metadata)):
		if metadata is not None and metadata[obj_idx] is not None:
		if add:
		metadata[obj_idx] = trim(
		metadata[obj_idx],
		limits=(-int(preamble_frames), 0),
		samples=True,
		num_columns = metadata[obj_idx].shape[1]
		metadata[obj_idx] = np.vstack(
		[np.repeat(np.array(DEFAULT_ISM_METADATA)[None, :num_columns], preamble_frames, 0), metadata[obj_idx]]
		)

		# add radius 1
		metadata[obj_idx][: int(preamble_frames), 2] = 1
		else:
		metadata[obj_idx] = trim(
		metadata[obj_idx],