diff --git a/deblack/deblack.py b/deblack/deblack.py
index 349c040..d50765d 100644
--- a/deblack/deblack.py
+++ b/deblack/deblack.py
@@ -19,8 +19,39 @@ def delete_back2back(l):
     return [x[0] for x in groupby(l)]
 
 
+def get_bitrate(inpath):
+    cmd = ["ffprobe", "-i", inpath, "-show_entries", "stream=bit_rate", "-of", "default=nw=1", "-v", "quiet"]
+    output = subprocess.check_output(cmd).decode("utf-8")
+    video_bitrate = None
+    audio_bitrate = None
+    for line in output.split("\n"):
+        if "bit_rate=" in line:
+            if "Stream #0:0" in output and "Stream #0:1" in output:
+                if "Stream #0:0" in line:
+                    video_bitrate = int(line.split("=")[1].strip())
+                elif "Stream #0:1" in line:
+                    audio_bitrate = int(line.split("=")[1].strip())
+            elif "Stream #0:0" in output:
+                video_bitrate = int(line.split("=")[1].strip())
+            elif "Stream #0:1" in output:
+                audio_bitrate = int(line.split("=")[1].strip())
+    return video_bitrate, audio_bitrate
+
+
 def construct_ffmpeg_trim_cmd(timepairs, inpath, outpath, has_audio=True):
-    cmd = ["ffmpeg", "-i", inpath, "-y", "-filter_complex"]
+    video_bitrate, audio_bitrate = get_bitrate(inpath)
+    cmd = ["ffmpeg", "-i", inpath]
+
+    if video_bitrate:
+        cmd.extend(["-b:v", str(video_bitrate)])
+    if has_audio and audio_bitrate:
+        cmd.extend(["-b:a", str(audio_bitrate)])
+
+    cmd.extend(["-c:v", "libx264", "-crf", "18"])
+    if has_audio:
+        cmd.extend(["-c:a", "aac"])
+
+    cmd.extend(["-y", "-filter_complex"])
 
     filter_str = ""
     for i, (start, end) in enumerate(timepairs):
@@ -38,7 +69,8 @@ def construct_ffmpeg_trim_cmd(timepairs, inpath, outpath, has_audio=True):
     cmd.append(filter_str)
 
     cmd.extend(["-map", "[outv]"])
-    cmd.extend(["-map", "[outa]"] if has_audio else [])
+    if has_audio:
+        cmd.extend(["-map", "[outa]"])
     cmd.append(outpath)
 
     return cmd
@@ -64,7 +96,7 @@ def get_blackdetect(inpath, invert=False):
     assert len(times), "no black detected"
 
     # Handle video ending with black by adding "duration" as last trim if needed
-    if len(times) % 2 != 0:
+    if len(times) % 2!= 0:
         video_length_cmd = ["ffprobe", "-i", inpath, "-show_entries", "format=duration", "-of", "csv=p=0", "-v", "quiet"]
         video_length_str = subprocess.check_output(video_length_cmd).decode("utf-8")
         video_length = float(video_length_str)
@@ -78,6 +110,7 @@ def get_blackdetect(inpath, invert=False):
 
 
 def main():
+    
     def str2bool(v):
         if isinstance(v, bool):
             return v
@@ -107,7 +140,7 @@ def str2bool(v):
     if args.audio == "auto":
         try:
             cmd = ["ffprobe", "-i", args.input, "-show_streams", "-select_streams", "a", "-loglevel", "error"]
-            args.audio = subprocess.check_output(cmd).decode("utf-8").strip() != ""
+            args.audio = subprocess.check_output(cmd).decode("utf-8").strip()!= ""
         except Exception as e:
             print(e, "Failed to detect audio, assuming no audio. Use --audio to override.")
     else:
@@ -123,3 +156,4 @@ def str2bool(v):
 
 if __name__ == "__main__":
     main()
+    
\ No newline at end of file