Make sure timeline is not empty

Author: WyattBlue

auto_editor/formats/fcp7.py

@@ -424,13 +424,14 @@ def resolve_write_audio(audio: Element, make_filedef, tl: v3) -> None:
                 clipitem.append(speedup(aclip.speed * 100))
 
 
-def premiere_write_audio(audio: Element, make_filedef, src: FileInfo, tl: v3) -> None:
+def premiere_write_audio(audio: Element, make_filedef, tl: v3) -> None:
     ET.SubElement(audio, "numOutputChannels").text = "2"
     aformat = ET.SubElement(audio, "format")
     aschar = ET.SubElement(aformat, "samplecharacteristics")
     ET.SubElement(aschar, "depth").text = DEPTH
     ET.SubElement(aschar, "samplerate").text = f"{tl.sr}"
-
+    src = tl.src
+    assert src is not None
     t = 0
     for aclips in tl.a:
         for channelcount in range(0, 2):  # Because "stereo" is hardcoded.
@@ -579,7 +580,7 @@ def make_filedef(clipitem: Element, src: FileInfo) -> None:
     if resolve:
         resolve_write_audio(audio, make_filedef, tl)
     else:
-        premiere_write_audio(audio, make_filedef, src, tl)
+        premiere_write_audio(audio, make_filedef, tl)
 
     tree = ET.ElementTree(xmeml)
     ET.indent(tree, space="  ", level=0)

auto_editor/lang/stdenv.py

@@ -13,6 +13,7 @@
 if TYPE_CHECKING:
     from typing import Any, Literal
 
+    import numpy as np
     from numpy.typing import NDArray
 
     Number = int | float | complex | Fraction

auto_editor/make_layers.py

@@ -302,4 +302,7 @@ def chunkify(arr: NDArray, smap: dict[int, float]) -> Chunks:
     else:
         v1_compatiable = None
 
+    if len(vtl) == 0 and len(atl) == 0:
+        log.error("Timeline is empty, nothing to do.")
+
     return v3(inp, tb, sr, res, args.background, vtl, atl, v1_compatiable)

auto_editor/render/audio.py

@@ -300,7 +300,7 @@ def make_new_audio(
 
     temp = log.temp
 
-    if not tl.a or not tl.a[0]:
+    if not tl.a[0]:
         log.error("Trying to render empty audio timeline")
 
     for i, layer in enumerate(tl.a):