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import hashlib
import os
from typing import Iterable
import shutil
import subprocess
import re
import server
from .logger import logger
BIGMIN = -(2**53-1)
BIGMAX = (2**53-1)
DIMMAX = 8192
def ffmpeg_suitability(path):
try:
version = subprocess.run([path, "-version"], check=True,
capture_output=True).stdout.decode("utf-8")
except:
return 0
score = 0
#rough layout of the importance of various features
simple_criterion = [("libvpx", 20),("264",10), ("265",3),
("svtav1",5),("libopus", 1)]
for criterion in simple_criterion:
if version.find(criterion[0]) >= 0:
score += criterion[1]
#obtain rough compile year from copyright information
copyright_index = version.find('2000-2')
if copyright_index >= 0:
copyright_year = version[copyright_index+6:copyright_index+9]
if copyright_year.isnumeric():
score += int(copyright_year)
return score
if "VHS_FORCE_FFMPEG_PATH" in os.environ:
ffmpeg_path = os.environ.get("VHS_FORCE_FFMPEG_PATH")
else:
ffmpeg_paths = []
try:
from imageio_ffmpeg import get_ffmpeg_exe
imageio_ffmpeg_path = get_ffmpeg_exe()
ffmpeg_paths.append(imageio_ffmpeg_path)
except:
if "VHS_USE_IMAGEIO_FFMPEG" in os.environ:
raise
logger.warn("Failed to import imageio_ffmpeg")
if "VHS_USE_IMAGEIO_FFMPEG" in os.environ:
ffmpeg_path = imageio_ffmpeg_path
else:
system_ffmpeg = shutil.which("ffmpeg")
if system_ffmpeg is not None:
ffmpeg_paths.append(system_ffmpeg)
if len(ffmpeg_paths) == 0:
logger.error("No valid ffmpeg found.")
ffmpeg_path = None
elif len(ffmpeg_paths) == 1:
#Evaluation of suitability isn't required, can take sole option
#to reduce startup time
ffmpeg_path = ffmpeg_paths[0]
else:
ffmpeg_path = max(ffmpeg_paths, key=ffmpeg_suitability)
gifski_path = os.environ.get("VHS_GIFSKI", None)
if gifski_path is None:
gifski_path = os.environ.get("JOV_GIFSKI", None)
if gifski_path is None:
gifski_path = shutil.which("gifski")
def get_sorted_dir_files_from_directory(directory: str, skip_first_images: int=0, select_every_nth: int=1, extensions: Iterable=None):
directory = directory.strip()
dir_files = os.listdir(directory)
dir_files = sorted(dir_files)
dir_files = [os.path.join(directory, x) for x in dir_files]
dir_files = list(filter(lambda filepath: os.path.isfile(filepath), dir_files))
# filter by extension, if needed
if extensions is not None:
extensions = list(extensions)
new_dir_files = []
for filepath in dir_files:
ext = "." + filepath.split(".")[-1]
if ext.lower() in extensions:
new_dir_files.append(filepath)
dir_files = new_dir_files
# start at skip_first_images
dir_files = dir_files[skip_first_images:]
dir_files = dir_files[0::select_every_nth]
return dir_files
# modified from https://stackoverflow.com/questions/22058048/hashing-a-file-in-python
def calculate_file_hash(filename: str, hash_every_n: int = 1):
#Larger video files were taking >.5 seconds to hash even when cached,
#so instead the modified time from the filesystem is used as a hash
h = hashlib.sha256()
h.update(filename.encode())
h.update(str(os.path.getmtime(filename)).encode())
return h.hexdigest()
prompt_queue = server.PromptServer.instance.prompt_queue
def requeue_workflow_unchecked():
"""Requeues the current workflow without checking for multiple requeues"""
currently_running = prompt_queue.currently_running
(_, _, prompt, extra_data, outputs_to_execute) = next(iter(currently_running.values()))
#Ensure batch_managers are marked stale
prompt = prompt.copy()
for uid in prompt:
if prompt[uid]['class_type'] == 'VHS_BatchManager':
prompt[uid]['inputs']['requeue'] = prompt[uid]['inputs'].get('requeue',0)+1
#execution.py has guards for concurrency, but server doesn't.
#TODO: Check that this won't be an issue
number = -server.PromptServer.instance.number
server.PromptServer.instance.number += 1
prompt_id = str(server.uuid.uuid4())
prompt_queue.put((number, prompt_id, prompt, extra_data, outputs_to_execute))
requeue_guard = [None, 0, 0, {}]
def requeue_workflow(requeue_required=(-1,True)):
assert(len(prompt_queue.currently_running) == 1)
global requeue_guard
(run_number, _, prompt, _, _) = next(iter(prompt_queue.currently_running.values()))
if requeue_guard[0] != run_number:
#Calculate a count of how many outputs are managed by a batch manager
managed_outputs=0
for bm_uid in prompt:
if prompt[bm_uid]['class_type'] == 'VHS_BatchManager':
for output_uid in prompt:
if prompt[output_uid]['class_type'] in ["VHS_VideoCombine"]:
for inp in prompt[output_uid]['inputs'].values():
if inp == [bm_uid, 0]:
managed_outputs+=1
requeue_guard = [run_number, 0, managed_outputs, {}]
requeue_guard[1] = requeue_guard[1]+1
requeue_guard[3][requeue_required[0]] = requeue_required[1]
if requeue_guard[1] == requeue_guard[2] and max(requeue_guard[3].values()):
requeue_workflow_unchecked()
def get_audio(file, start_time=0, duration=0):
args = [ffmpeg_path, "-v", "error", "-i", file]
if start_time > 0:
args += ["-ss", str(start_time)]
if duration > 0:
args += ["-t", str(duration)]
try:
res = subprocess.run(args + ["-f", "wav", "-"],
stdout=subprocess.PIPE, check=True).stdout
except subprocess.CalledProcessError as e:
logger.warning(f"Failed to extract audio from: {file}")
return False
return res
def lazy_eval(func):
class Cache:
def __init__(self, func):
self.res = None
self.func = func
def get(self):
if self.res is None:
self.res = self.func()
return self.res
cache = Cache(func)
return lambda : cache.get()
def is_url(url):
return url.split("://")[0] in ["http", "https"]
def validate_sequence(path):
#Check if path is a valid ffmpeg sequence that points to at least one file
(path, file) = os.path.split(path)
if not os.path.isdir(path):
return False
match = re.search('%0?\d+d', file)
if not match:
return False
seq = match.group()
if seq == '%d':
seq = '\\\\d+'
else:
seq = '\\\\d{%s}' % seq[1:-1]
file_matcher = re.compile(re.sub('%0?\d+d', seq, file))
for file in os.listdir(path):
if file_matcher.fullmatch(file):
return True
return False
def hash_path(path):
if path is None:
return "input"
if is_url(path):
return "url"
return calculate_file_hash(path.strip("\""))
def validate_path(path, allow_none=False, allow_url=True):
if path is None:
return allow_none
if is_url(path):
#Probably not feasible to check if url resolves here
return True if allow_url else "URLs are unsupported for this path"
if not os.path.isfile(path.strip("\"")):
return "Invalid file path: {}".format(path)
return True
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