fix: corrections post-review (escapes, find_crf, color_args, chemins /tmp/)

- Supprime les séquences d'échappement invalides \( \) dans les f-strings HDR10
  (SyntaxWarning → SyntaxError en Python 3.14)
- find_crf : prend la dernière ligne "crf X VMAF Y" au lieu de la première
  (évite de retourner un CRF intermédiaire d'ab-av1 crf-search)
- color_args : garde contre les valeurs None pour color_primaries/transfer/space
- Chemins /tmp/ : utilise os.path.basename() pour éviter les chemins malformés
  si le fichier source est spécifié avec un chemin absolu ou relatif

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

vid_convert.py

@@ -71,10 +71,11 @@ def get_infos(file):
     hdr10_v_cmd = f'ffmpeg -loglevel panic -i {file} -c:v copy {bsf} -f hevc - | hdr10plus_parser --verify -'
     hdr10_v_raw = subprocess.getoutput(hdr10_v_cmd)
     if 'metadata detected' in hdr10_v_raw:
-        hdr10_cmd = f'ffmpeg -loglevel panic -i {file} -c:v copy {bsf} -f hevc - | hdr10plus_parser -o /tmp/{file}_hdr10_metadata.json -'
+        hdr10_meta = f'/tmp/{os.path.basename(file)}_hdr10_metadata.json'
+        hdr10_cmd = f'ffmpeg -loglevel panic -i {file} -c:v copy {bsf} -f hevc - | hdr10plus_parser -o {hdr10_meta} -'
         hdr10_cmd_res = subprocess.getoutput(hdr10_cmd)
         logging.debug(hdr10_cmd_res)
-        v_infos.update({'hdr10plus': True, 'hdr10plus_metadata': f'/tmp/{file}_hdr10_metadata.json'})
+        v_infos.update({'hdr10plus': True, 'hdr10plus_metadata': hdr10_meta})
     try:
         for side_data in full_v_infos['frames'][0].get('side_data_list', []):
             if side_data.get('side_data_type') == 'DOVI configuration record':
@@ -146,15 +147,17 @@ def find_crf(file, enc_options, hdr=False):
     logging.debug(cmd)
     result = subprocess.getoutput(cmd)
     logging.debug(result)
+    found_crf = None
     for line in result.splitlines():
-        # ab-av1 émet une ligne du type : "crf 32 VMAF 96.21 ..."
+        # ab-av1 émet des lignes intermédiaires puis une ligne finale "crf 32 VMAF 96.21 ..."
         if 'crf' in line and 'VMAF' in line:
             try:
-                crf = int(line.split('crf')[1].split()[0])
+                found_crf = int(line.split('crf')[1].split()[0])
-                logging.info(f"CRF optimal trouvé : {crf}")
-                return crf
             except (IndexError, ValueError):
                 pass
+    if found_crf is not None:
+        logging.info(f"CRF optimal trouvé : {found_crf}")
+        return found_crf
     logging.warning("ab-av1 crf-search a échoué, utilisation du CRF par défaut (32)")
     return 32
 
@@ -212,32 +215,33 @@ def convert_video(file, infos, crf, crop, enc_options, interlaced, vhs):
             color_primaries = infos['video']['color_primaries']
             color_transfer = infos['video']['color_transfer']
             color_space = infos['video']['color_space']
-            color_args = f'-color_primaries {color_primaries} -color_trc {color_transfer} -colorspace {color_space}'
+            if all([color_primaries, color_transfer, color_space]):
+                color_args = f'-color_primaries {color_primaries} -color_trc {color_transfer} -colorspace {color_space}'
             green_x = infos['video']['side_data_list'][0]['green_x'].split('/')
             green_x = int(int(green_x[0])*(int(green_x[1])/50000))
             green_y = infos['video']['side_data_list'][0]['green_y'].split('/')
             green_y = int(int(green_y[0])*(int(green_y[1])/50000))
-            green = f'G\({green_x},{green_y}\)'
+            green = f'G({green_x},{green_y})'
             blue_x = infos['video']['side_data_list'][0]['blue_x'].split('/')
             blue_x = int(int(blue_x[0])*(int(blue_x[1])/50000))
             blue_y = infos['video']['side_data_list'][0]['blue_y'].split('/')
             blue_y = int(int(blue_y[0])*(int(blue_y[1])/50000))
-            blue = f'B\({blue_x},{blue_y}\)'
+            blue = f'B({blue_x},{blue_y})'
             red_x = infos['video']['side_data_list'][0]['red_x'].split('/')
             red_x = int(int(red_x[0])*(int(red_x[1])/50000))
             red_y = infos['video']['side_data_list'][0]['red_y'].split('/')
             red_y = int(int(red_y[0])*(int(red_y[1])/50000))
-            red = f'R\({red_x},{red_y}\)'
+            red = f'R({red_x},{red_y})'
             white_point_x = infos['video']['side_data_list'][0]['white_point_x'].split('/')
             white_point_x = int(int(white_point_x[0])*(int(white_point_x[1])/50000))
             white_point_y = infos['video']['side_data_list'][0]['white_point_y'].split('/')
             white_point_y = int(int(white_point_y[0])*(int(white_point_y[1])/50000))
-            white_point = f'WP\({white_point_x},{white_point_y}\)'
+            white_point = f'WP({white_point_x},{white_point_y})'
             min_luminance = infos['video']['side_data_list'][0]['min_luminance'].split('/')
             min_luminance = int(int(min_luminance[0])*(int(min_luminance[1])/10000))
             max_luminance = infos['video']['side_data_list'][0]['max_luminance'].split('/')
             max_luminance = int(int(max_luminance[0])*(int(max_luminance[1])/10000))
-            luminance = f'L\({max_luminance},{min_luminance}\)'
+            luminance = f'L({max_luminance},{min_luminance})'
             master_display = green + blue + red + white_point + luminance
             hdr = f'mastering-display={master_display}:content-light={light_level}'
             if svtav1_params:
@@ -280,13 +284,14 @@ def create_mkv(filename):
             json_data += ["--no-track-tags", "--no-global-tags", "--no-chapters",
                           "--language", f"0:{lang}",
                           "(", file, ")"]
-    with open(f"/tmp/{filename}.json", "w") as mkvmerge_options:
+    json_path = f"/tmp/{os.path.basename(filename)}.json"
+    with open(json_path, "w") as mkvmerge_options:
         mkvmerge_options.write(json.dumps(json_data))
-    command = f"mkvmerge -v @/tmp/{filename}.json"
+    command = f"mkvmerge -v @{json_path}"
     logging.debug(command)
     result = subprocess.getoutput(command)
     logging.info(result)
-    remove(f"/tmp/{filename}.json")
+    remove(json_path)
     for file in listdir():
         if file == video_file:
             remove(file)