diff --git a/utils/dynamic_progress_bar.py b/utils/dynamic_progress_bar.py
index 8047d2d..1ca5d03 100644
--- a/utils/dynamic_progress_bar.py
+++ b/utils/dynamic_progress_bar.py
@@ -3,7 +3,7 @@ from subprocess import PIPE, STDOUT
 import re
 from multiprocessing.managers import BaseManager
 from tqdm import tqdm
-
+from utils.utils import terminate
 
 # Stuff for updating encoded progress in real-time
 class MyManager(BaseManager):
@@ -46,12 +46,22 @@ def tqdm_bar(i, encoder, counter, frame_probe_source, passes):
         line = pipe.stdout.readline().strip()
         if len(line) == 0 and pipe.poll() is not None:
             break
+
+        if len(line) == 0:
+            continue
+
         if encoder in ('aom', 'vpx', 'rav1e'):
             match = None
             if encoder in ('aom', 'vpx'):
+                if 'fatal' in line.lower():
+                    print('\n\nERROR IN ENCODING PROCESS\n\n', line)
+                    terminate()
                 if 'Pass 2/2' in line or 'Pass 1/1' in line:
                     match = re.search(r"frame.*?\/([^ ]+?) ", line)
             elif encoder == 'rav1e':
+                if 'error' in line.lower():
+                    print('\n\nERROR IN ENCODING PROCESS\n\n', line)
+                    terminate()
                 match = re.search(r"encoded.*? ([^ ]+?) ", line)
 
             if match:
diff --git a/utils/vmaf.py b/utils/vmaf.py
index 4ea722d..f360e22 100644
--- a/utils/vmaf.py
+++ b/utils/vmaf.py
@@ -8,6 +8,7 @@ import numpy as np
 from math import  isnan
 from scipy import interpolate
 import matplotlib
+from  utils.utils import terminate
 
 
 def read_vmaf_xml(file, percentile):
@@ -36,12 +37,18 @@ def call_vmaf( source: Path, encoded: Path, model=None, return_file=False):
         # For vmaf calculation both source and encoded segment scaled to 1080
         # for proper vmaf calculation
         fl = source.with_name(encoded.stem).with_suffix('.xml').as_posix()
-        cmd = f'ffmpeg -hide_banner -r 60 -i {source.as_posix()} -r 60 -i {encoded.as_posix()}  ' \
+        cmd = f'ffmpeg -loglevel error -hide_banner -r 60 -i {source.as_posix()} -r 60 -i {encoded.as_posix()}  ' \
               f'-filter_complex "[0:v]scale=1920:1080:flags=spline:force_original_aspect_ratio=decrease[scaled1];' \
               f'[1:v]scale=1920:1080:flags=spline:force_original_aspect_ratio=decrease[scaled2];' \
               f'[scaled2][scaled1]libvmaf=log_path={fl}{mod}" -f null - '
 
-        call = subprocess.run(cmd, shell=True, stdout=PIPE, stderr=STDOUT).stdout
+        c = subprocess.run(cmd, shell=True, stdout=PIPE, stderr=STDOUT)
+        call = c.stdout
+        # print(c.stdout.decode())
+        if 'error' in call.decode().lower():
+            print('\n\nERROR IN VMAF CALCULATION\n\n',call.decode())
+            terminate()
+
 
         if return_file:
             return fl