fix end of vdeo captions issue

yttemporal180m.py

@@ -97,13 +97,9 @@ class yttemporal180m(datasets.GeneratorBasedBuilder):
 
                     # Divide video by segments of 15 sec
                     max_sec_per_segment = 15
+                    last_caption_timestamp = infos["subtitles"][-1]["time"]
                     num_chunks = (
-                        int(
-                            divmod(infos["subtitles"][-1]["time"], max_sec_per_segment)[
-                                0
-                            ]
-                        )
-                        + 1
+                        int(divmod(last_caption_timestamp, max_sec_per_segment)[0]) + 1
                     )
                     time_chunks = [
                         i * max_sec_per_segment for i in range(num_chunks + 1)
@@ -111,9 +107,10 @@ class yttemporal180m(datasets.GeneratorBasedBuilder):
                     time_chunk_idx = 0
                     caption = ""
                     for el in infos["subtitles"]:
-                        if el["time"] <= time_chunks[time_chunk_idx + 1]:
-                            caption += el["word"] + " "
-                        else:
+                        if (
+                            el["time"] > time_chunks[time_chunk_idx + 1]
+                            or el["time"] == last_caption_timestamp
+                        ):
                             timestamp_start = float(time_chunks[time_chunk_idx])
                             timestamp_stop = float(time_chunks[time_chunk_idx + 1])
                             time_chunk_idx += 1
@@ -136,5 +133,8 @@ class yttemporal180m(datasets.GeneratorBasedBuilder):
                             }
                             idx += 1
                             caption = ""
+                            caption += el["word"] + " "
+                        else:
+                            caption += el["word"] + " "
                     if idx > 1000:
                         break