add -F option to allow custom ffmpeg settings in ld-cut

ld-cut

@@ -72,6 +72,15 @@ parser.add_argument(
     help="compression level for .ldf files",
 )
 
+parser.add_argument(
+    "-F",
+    "--fmpeg-options",
+    dest="ffmpeg_options",
+    type=str,
+    default=None,
+    help="custom ffmpeg format options"
+)
+
 args = parser.parse_args()
 
 # print(args)
@@ -134,7 +143,9 @@ startidx = int(ldd.fdoffset)
 ldd.roughseek(endloc)
 endidx = int(ldd.fdoffset)
 
-if makelds:
+if args.ffmpeg_options is not None:
+    process, fd = ffmpeg_pipe(outname, args.ffmpeg_options)
+elif makelds:
     process = subprocess.Popen(
         ["ld-lds-converter", "-o", outname, "-p"], stdin=subprocess.PIPE
     )

lddecode/utils.py

@@ -529,17 +529,25 @@ def __call__(self, infile, sample, readlen):
         return self.read(infile, sample, readlen)
 
 
-def ldf_pipe(outname: str, compression_level: int = 6):
-    corecmd = "ffmpeg -y -hide_banner -loglevel error -f s16le -ar 40k -ac 1 -i - -acodec flac -f ogg".split(
-        " "
-    )
+def ffmpeg_pipe(outname: str, opts: str):
+    cmd = f"ffmpeg -y -hide_banner -loglevel error -f s16le -ar 40k -ac 1 -i -"
+    if opts and len(opts):
+        cmd += f" {opts}"
+
+    cmd = cmd.split(' ')
+
     process = subprocess.Popen(
-        [*corecmd, "-compression_level", str(compression_level), outname],
+        [*cmd, outname],
         stdin=subprocess.PIPE,
     )
 
     return process, process.stdin
 
+
+def ldf_pipe(outname: str, compression_level: int = 6):
+    return ffmpeg_pipe(outname, f"-acodec flac -f ogg -compression_level {compression_level}")
+
+
 def ac3_pipe(outname: str):
     processes = []