revert ffmpeg thread, until i found some way better like taskset (package)

Signed-off-by: anasty17 <e.anastayyar@gmail.com>

Author: anasty17

bot/helper/ext_utils/media_utils.py

@@ -138,6 +138,8 @@ async def take_ss(video_file, ss_nb) -> bool:
                 "1",
                 "-frames:v",
                 "1",
+                "-threads",
+                f"{max(1, cpu_no // 2)}",
                 output,
             ]
             cap_time += interval
@@ -176,6 +178,8 @@ async def get_audio_thumbnail(audio_file):
         "-an",
         "-vcodec",
         "copy",
+        "-threads",
+        f"{max(1, cpu_no // 2)}",
         output,
     ]
     try:
@@ -217,6 +221,8 @@ async def get_video_thumbnail(video_file, duration):
         "1",
         "-frames:v",
         "1",
+        "-threads",
+        f"{max(1, cpu_no // 2)}",
         output,
     ]
     try:
@@ -260,6 +266,8 @@ async def get_multiple_frames_thumbnail(video_file, layout, keep_screenshots):
         "1",
         "-f",
         "mjpeg",
+        "-threads",
+        f"{max(1, cpu_no // 2)}",
         output,
     ]
     try:
@@ -438,6 +446,8 @@ async def convert_video(self, video_file, ext, retry=False):
                 "libx264",
                 "-c:a",
                 "aac",
+                "-threads",
+                f"{max(1, cpu_no // 2)}",
                 output,
             ]
             if ext == "mp4":
@@ -460,6 +470,8 @@ async def convert_video(self, video_file, ext, retry=False):
                 "0",
                 "-c",
                 "copy",
+                "-threads",
+                f"{max(1, cpu_no // 2)}",
                 output,
             ]
         if self._listener.is_cancelled:
@@ -505,6 +517,8 @@ async def convert_audio(self, audio_file, ext):
             "pipe:1",
             "-i",
             audio_file,
+            "-threads",
+            f"{max(1, cpu_no // 2)}",
             output,
         ]
         if self._listener.is_cancelled:
@@ -583,6 +597,8 @@ async def sample_video(self, video_file, sample_duration, part_duration):
             "libx264",
             "-c:a",
             "aac",
+            "-threads",
+            f"{max(1, cpu_no // 2)}",
             output_file,
         ]
 
@@ -646,6 +662,8 @@ async def split(self, f_path, file_, parts, split_size):
                 "-2",
                 "-c",
                 "copy",
+                "-threads",
+                f"{max(1, cpu_no // 2)}",
                 out_path,
             ]
             if not multi_streams: