[Model] Add IndexTTS2 text-to-speech support (#3838)

Signed-off-by: BeatSeat <wendavid552@gmail.com>
Signed-off-by: David <david@podcast.ai>
Signed-off-by: wendavid552 <wendavid552@gmail.com>
Signed-off-by: WenDavid <davidzhangcf@foxmail.com>

vllm_omni/model_executor/models/registry.py

@@ -305,6 +305,17 @@ _OMNI_MODELS = {
         "dynin_omni",
         "DyninOmniForConditionalGeneration",
     ),
+    ## IndexTTS2
+    "IndexTTS2TalkerForConditionalGeneration": (
+        "indextts2",
+        "indextts2_talker",
+        "IndexTTS2TalkerForConditionalGeneration",
+    ),
+    "IndexTTS2S2MelDecoder": (
+        "indextts2",
+        "indextts2_s2mel_decoder",
+        "IndexTTS2S2MelDecoder",
+    ),
     ## Ming-flash-omni-2.0
     "MingFlashOmniForConditionalGeneration": (
         "ming_flash_omni",