added offset for jbm error pattern (5f8001c5) · Commits · IVAS Codec Public Collaboration / IVAS Processing Scripts

examples/TEMPLATE.yml

+3 −3

Original line number	Diff line number	Diff line
		@@ -139,19 +139,19 @@ input:
		# type: "JBM"

		### JBM
		### REQUIRED: either error_pattern (and errpatt_late_loss_rate or errpatt_delay and errpatt_seed for EVS) or error_profile
		### REQUIRED: either error_pattern (and errpatt_late_loss_rate or errpatt_delay) or error_profile
		### delay error profile file
		# error_pattern: ".../dly_error_profile.dat"
		### Late loss rate in precent or EVS
		# errpatt_late_loss_rate: 1
		### Constant JBM delay in milliseconds for EVS
		# errpatt_delay: 200
		### Seed for error pattern shift in EVS JBM
		# errpatt_seed: 0
		### Index of one of the existing delay error profile files to use (1-10)
		# error_profile: 5
		## nFramesPerPacket parameter for the network simulator; default = 1
		# n_frames_per_packet: 2
		### Seed for error pattern shift in JBM; default = 0 or determined by profile number
		# errpatt_seed: 0

		### FER
		### REQUIRED: either error_pattern or error_rate

ivas_processing_scripts/audiotools/wrappers/dlyerr_2_errpat.py

+15 −3

Original line number	Diff line number	Diff line
		@@ -39,6 +39,8 @@ from ivas_processing_scripts.audiotools.wrappers.networkSimulator import LIST_JB
		from ivas_processing_scripts.constants import DEFAULT_CONFIG_BINARIES
		from ivas_processing_scripts.utils import find_binary, run
		from ivas_processing_scripts.audiotools.wrappers.eid_xor import eid_xor
		from ivas_processing_scripts.audiotools.wrappers.random_seed import random_seed
		from ivas_processing_scripts.audiotools.wrappers.networkSimulator import length_pattern


		def dlyerr_2_errpat(
		@@ -130,7 +132,7 @@ def dlyerr_2_errpat(
		return


		def evs_jbm(bitstream, bitstream_processed, error_profile, error_pattern, errpatt_late_loss_rate, errpatt_delay, errpatt_seed, errpatt_frames_packet):
		def evs_jbm(bitstream, bitstream_processed, error_profile, error_pattern, errpatt_late_loss_rate, errpatt_delay, errpatt_seed, errpatt_frames_packet, master_seed):

		# convert delay and error profile
		delay = None
		@@ -139,14 +141,19 @@ def evs_jbm(bitstream, bitstream_processed, error_profile, error_pattern, errpat
		late_loss_rate = None
		length = None
		flag_word = True
		if errpatt_seed is None:
		errpatt_seed = 0

		if error_pattern is not None:
		# if error pattern and parameter are specified
		delay = errpatt_delay
		late_loss_rate = errpatt_late_loss_rate
		num_frames_packet = errpatt_frames_packet
		shift = 0 # TODO: (treffehn) compute offset with random and master seed (also for ivas jbm)
		dlyerr_pattern = error_pattern
		# compute offset of error pattern
		len_pattern = length_pattern(dlyerr_pattern)
		shift = random_seed((0, len_pattern - 1), master_seed, errpatt_seed)

		elif error_profile is not None:
		# if eror profile number is given
		if error_profile == 1 or error_profile == 2 or error_profile == 3:
		@@ -168,7 +175,7 @@ def evs_jbm(bitstream, bitstream_processed, error_profile, error_pattern, errpat
		length = 8000
		else:
		raise ValueError("JBM error profile number not an integer between 1 and 10")
		shift = 0 # TODO: (treffehn) compute offset with random and master seed (also for ivas jbm)

		if error_profile in LIST_JBM_PROFILES:
		dlyerr_pattern = ERROR_PATTERNS_DIR.joinpath(
		f"dly_error_profile_{error_profile}.dat"
		@@ -178,6 +185,10 @@ def evs_jbm(bitstream, bitstream_processed, error_profile, error_pattern, errpat
		f"JBM profile number {error_profile} does not exist, should be between {LIST_JBM_PROFILES[0]} and {LIST_JBM_PROFILES[-1]}"
		)

		# compute offset of error pattern
		len_pattern = length_pattern(dlyerr_pattern)
		shift = random_seed((0, len_pattern - 1), master_seed, error_profile, False)

		fer_pattern = Path(bitstream).with_suffix(".evs_jbm_fer.192")

		dlyerr_2_errpat(
		@@ -261,3 +272,4 @@ def validate_evs_jbm(
		f"n_frames_per_paket is {n_frames_per_packet}. Should be 1 or 2. Please check your configuration."
		)
		return

ivas_processing_scripts/audiotools/wrappers/networkSimulator.py

+24 −3

Original line number	Diff line number	Diff line
		@@ -33,9 +33,11 @@
		import logging
		from pathlib import Path
		from typing import Optional, Union
		from warnings import warn

		from ivas_processing_scripts.constants import DEFAULT_CONFIG_BINARIES
		from ivas_processing_scripts.utils import find_binary, run
		from ivas_processing_scripts.audiotools.wrappers.random_seed import random_seed

		LIST_JBM_PROFILES = range(11)
		ERROR_PATTERNS_DIR = Path(__file__).parent.parent.parent.joinpath("dly_error_profiles")
		@@ -82,6 +84,8 @@ def validate_network_simulator(
		raise ValueError(
		"JBM pattern and JBM profile number are specified for bitstream processing. Can't use both! Please check the configuration."
		)
		if errpatt_seed is None:
		raise warn("No error pattern seed specified for JBM offset -> use 0")
		elif error_profile is not None:
		if error_profile not in LIST_JBM_PROFILES:
		raise ValueError(
		@@ -166,7 +170,8 @@ def apply_network_simulator(
		error_pattern: Optional[Union[Path, str]] = None,
		error_profile: Optional[int] = None,
		n_frames_per_packet: Optional[int] = None,
		offset: Optional[int] = 0,
		master_seed: Optional[int] = 0,
		errpatt_seed: Optional[int] = 0,
		logger: Optional[logging.Logger] = None,
		) -> None:
		"""
		@@ -184,8 +189,10 @@ def apply_network_simulator(
		Index of existing error pattern
		n_frames_per_packet: Optional[int]
		Number of frames per paket
		offset: Optional[int]
		delay offset
		master_seed: Optional[int]
		Seed to compute delay offset
		errpatt_seed: Optional[int]
		Seed to compute delay offset
		logger: Optional[logging.Logger]
		logger
		"""
		@@ -215,9 +222,23 @@ def apply_network_simulator(
		if error_profile is not None and error_profile == 5:
		n_frames_per_packet = 2

		# compute offset of error pattern
		len_pattern = length_pattern(error_pattern)
		if error_profile:
		offset = random_seed((0, len_pattern - 1), master_seed, error_profile, False)
		else:
		offset = random_seed((0, len_pattern - 1), master_seed, errpatt_seed, False)

		# apply error pattern
		network_simulator(
		error_pattern, in_bitstream, out_bitstream, n_frames_per_packet, offset, logger
		)

		return


		def length_pattern(path_pattern):
		with open(path_pattern, 'r') as f:
		p = f.readlines()
		length = len(p)
		return length

ivas_processing_scripts/processing/chains.py

+3 −0

Original line number	Diff line number	Diff line
		@@ -307,6 +307,7 @@ def get_processing_chain(
		"errpatt_seed": tx_cfg_tmp.get("errpatt_seed", None),
		"error_profile": tx_cfg_tmp.get("error_profile", None),
		"n_frames_per_packet": tx_cfg_tmp.get("n_frames_per_packet", None),
		"master_seed": cfg.master_seed,
		}
		else:
		raise ValueError(
		@@ -398,6 +399,8 @@ def get_processing_chain(
		"error_pattern": tx_cfg_tmp.get("error_rate", None),
		"error_profile": tx_cfg_tmp.get("error_profile", None),
		"n_frames_per_packet": tx_cfg_tmp.get("n_frames_per_packet", None),
		"master_seed": cfg.master_seed,
		"errpatt_seed": tx_cfg_tmp.get("errpatt_seed", None),
		}
		ivas_jbm = True
		else:

ivas_processing_scripts/processing/evs.py

+1 −0

Original line number	Diff line number	Diff line
		@@ -388,6 +388,7 @@ class EVS(Processing):
		self.tx["errpatt_delay"],
		self.tx["errpatt_seed"],
		self.tx["n_frames_per_packet"],
		self.tx["master_seed"],
		)
		return bitstream_processed