Bound ffmpeg video encoder threads

tests/test_video.py

@@ -1950,17 +1950,19 @@ class TestVideoVisibleScan:
 
 
 class TestVideoVisibleEncoding:
-    def test_raw_pipe_input_disables_redundant_ffmpeg_probing(
+    @pytest.mark.parametrize("suffix", [".mp4", ".webm"])
+    def test_encoder_bounds_codec_threads(
         self,
         tmp_path: Path,
         monkeypatch: pytest.MonkeyPatch,
+        suffix: str,
     ):
         from remove_ai_watermarks import video_encoding
 
         monkeypatch.setattr(video_encoding.shutil, "which", lambda _name: "/usr/bin/ffmpeg")
         command = video_encoding.raw_video_command(
             tmp_path / "source.mp4",
-            tmp_path / "clean.mp4",
+            tmp_path / f"clean{suffix}",
             width=12,
             height=8,
             fps=24.0,
@@ -1969,14 +1971,7 @@ class TestVideoVisibleEncoding:
             profile=video_encoding.VideoEncodeProfile(),
         )
 
-        pipe_position = command.index("pipe:0")
-        assert command[pipe_position - 5 : pipe_position] == [
-            "-analyzeduration",
-            "0",
-            "-probesize",
-            "32",
-            "-i",
-        ]
+        assert command[command.index("-threads:v") + 1] == "2"
 
     @staticmethod
     def _patch_single_frame_encode(

tests/test_video_invisible.py

@@ -102,13 +102,9 @@ def test_timestamped_encoder_reads_nut_and_passes_pts_through(
     )
 
     assert "-copyts" in command
-    assert command[command.index("-f") : command.index("-f") + 8] == [
+    assert command[command.index("-f") : command.index("-f") + 4] == [
         "-f",
         "nut",
-        "-analyzeduration",
-        "0",
-        "-probesize",
-        "32",
         "-i",
         "pipe:0",
     ]