Add --profile-container opt.

Allows overriding of profile container.

Fixes #34

src/tbc_video_export/common/file_helper.py

@@ -133,10 +133,19 @@ def tbc_luma(self) -> str:
 
         raise exceptions.TBCError("Unable to find luma TBC.")
 
+    @cached_property
+    def output_container(self) -> str:
+        """Return container used for output video file."""
+        return (
+            self._opts.profile_container
+            if self._opts.profile_container is not None
+            else self._profile.video_profile.container
+        )
+
     @cached_property
     def output_video_file(self) -> Path:
         """Return absolute path to the output video file."""
-        return self.get_output_file_from_ext(f"{self._profile.video_profile.container}")
+        return self.get_output_file_from_ext(self.output_container)
 
     @cached_property
     def output_video_file_luma(self) -> Path:

src/tbc_video_export/opts/opts.py

@@ -86,6 +86,7 @@ class Opts(argparse.Namespace):
     # ffmpeg
     profile: str
     profile_luma: str
+    profile_container: str | None
     audio_track: list[AudioTrackOpt]
     metadata: list[list[str]]
     metadata_file: list[Path]

src/tbc_video_export/opts/opts_ffmpeg.py

@@ -56,6 +56,15 @@ def add_ffmpeg_opts(config: Config, parent: argparse.ArgumentParser) -> None:
         "\n\n",
     )
 
+    ffmpeg_opts.add_argument(
+        "--profile-container",
+        type=str,
+        metavar="profile_container",
+        help="Override an FFmpeg profile to use a specific container. Compatibility \n"
+        "with profile is not guaranteed."
+        "\n\n",
+    )
+
     ffmpeg_opts.add_argument(
         "--list-profiles",
         action=_ActionListProfiles,

src/tbc_video_export/process/wrapper/wrapper_ffmpeg.py

@@ -493,13 +493,13 @@ def _is_two_step_merge_mode(self) -> bool:
 
     def _get_supports_attachments(self) -> bool:
         """Return True if attachments are supported by the profile container."""
-        return self._get_profile().video_profile.container.lower() == "mkv"
+        return self._state.file_helper.output_container.lower() == "mkv"
 
     def _get_subtitle_format(self) -> str:
         """Return subtitle format based on the profile container."""
         return (
             "srt"
-            if self._get_profile().video_profile.container.lower() != "mov"
+            if self._state.file_helper.output_container.lower() != "mov"
             else "mov_text"
         )
 

tests/test_wrappers_ffmpeg.py

@@ -192,6 +192,34 @@ def test_ffmpeg_field_order_invalid_opt(self, mock_stderr: StringIO) -> None:  #
             r"error: argument --field-order: invalid FieldOrder value: 'invalid'",
         )
 
+    def test_ffmpeg_override_container_opt(self) -> None:  # noqa: D102
+        _, opts = self.parse_opts(
+            [
+                str(self.path),
+                "pal_svideo",
+                "--profile",
+                "prores_hq",
+                "--profile-container",
+                "mxf",
+            ]
+        )
+        self.files = FileHelper(opts, self.config)
+        state = ProgramState(opts, self.config, self.files)
+
+        ffmpeg_wrapper = WrapperFFmpeg(
+            state,
+            WrapperConfig[tuple[Pipe], None](
+                state.current_export_mode,
+                TBCType.CHROMA,
+                input_pipes=(self.pipe, self.pipe),
+                output_pipes=None,
+            ),
+        )
+
+        cmd = ffmpeg_wrapper.command.data
+
+        self.assertTrue(any("pal_svideo.mxf" in cmds for cmds in cmd))
+
 
 if __name__ == "__main__":
     unittest.main()