implemented sound importer for TVpaint

pype/hosts/tvpaint/plugins/load/load_sound.py

@@ -0,0 +1,121 @@
+import os
+import tempfile
+from avalon.pipeline import get_representation_context
+from avalon.vendor import qargparse
+from avalon.tvpaint import lib, pipeline
+
+
+class ImportSound(pipeline.Loader):
+    """Load sound to TVPaint.
+
+    Sound layers does not have ids but only position index so we can't
+    reference them as we can't say which is which input.
+
+    We might do that (in future) by input path. Which may be identifier if
+    we'll allow only one loaded instance of the representation as an audio.
+
+    This plugin does not work for all version of TVPaint. Known working
+    version is TVPaint 11.0.10 .
+
+    It is allowed to load video files as sound but it does not check if video
+    file contain any audio.
+    """
+
+    families = ["audio", "review", "plate"]
+    representations = ["*"]
+
+    label = "Import Sound"
+    order = 1
+    icon = "image"
+    color = "white"
+
+    import_script_lines = (
+        "sound_path = '\"'\"{}\"'\"'",
+        "output_path = \"{}\"",
+        # Try to get sound clip info to check if we are in TVPaint that can
+        # load sound
+        "tv_clipcurrentid",
+        "clip_id = result",
+        "tv_soundclipinfo clip_id 0",
+        "IF CMP(result,\"\")==1",
+        (
+            "tv_writetextfile \"strict\" \"append\" '\"'output_path'\"'"
+            " 'success|'"
+        ),
+        "EXIT",
+        "END",
+
+        "tv_soundclipnew sound_path",
+        "line = 'success|'result",
+        "tv_writetextfile \"strict\" \"append\" '\"'output_path'\"' line"
+    )
+
+    def load(self, context, name, namespace, options):
+        # Create temp file for output
+        output_file = tempfile.NamedTemporaryFile(
+            mode="w", prefix="pype_tvp_", suffix=".txt", delete=False
+        )
+        output_file.close()
+        output_filepath = output_file.name.replace("\\", "/")
+
+        # Prepare george script
+        import_script = "\n".join(self.import_script_lines)
+        george_script = import_script.format(
+            self.fname.replace("\\", "/"),
+            output_filepath
+        )
+        self.log.info("*** George script:\n{}\n***".format(george_script))
+        # Execute geoge script
+        lib.execute_george_through_file(george_script)
+
+        # Read output file
+        lines = []
+        with open(output_filepath, "r") as file_stream:
+            for line in file_stream:
+                line = line.rstrip()
+                if line:
+                    lines.append(line)
+
+        # Clean up temp file
+        os.remove(output_filepath)
+
+        output = {}
+        for line in lines:
+            key, value = line.split("|")
+            output[key] = value
+
+        success = output.get("success")
+        # Successfully loaded sound
+        if success == "0":
+            return
+
+        if success == "":
+            raise ValueError(
+                "Your TVPaint version does not support loading of"
+                " sound through George script. Please use manual load."
+            )
+
+        if success is None:
+            raise ValueError(
+                "Unknown error happened during load."
+                " Please report and try to use manual load."
+            )
+
+        # Possible errors by TVPaint documentation
+        # https://www.tvpaint.com/doc/tvpaint-animation-11/george-commands#tv_soundclipnew
+        if success == "-1":
+            raise ValueError(
+                "BUG: George command did not get enough arguments."
+            )
+
+        if success == "-2":
+            # Who know what does that mean?
+            raise ValueError("No current clip without mixer.")
+
+        if success == "-3":
+            raise ValueError("TVPaint couldn't read the file.")
+
+        if success == "-4":
+            raise ValueError("TVPaint couldn't add the track.")
+
+        raise ValueError("BUG: Unknown success value {}.".format(success))