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ComfyUI/comfy_api_nodes/nodes_heygen.py
Alexander Piskun b08e6cf35f [Partner Nodes] feat(HeyGen): add Avatar, Talking Photo, Create Avatar, Video Translate and TTS nodes (#14958) 
* [Partner Nodes] feat(HeyGen): add Avatar, Talking Photo, Create Avatar, Video Translate and TTS nodes

Signed-off-by: bigcat88 <bigcat88@icloud.com>

* [Partner Nodes] fix(HeyGen): display only Avatars supported by engine

Signed-off-by: bigcat88 <bigcat88@icloud.com>

* [Partner Nodes] remove 4K option

---------

Signed-off-by: bigcat88 <bigcat88@icloud.com>
Co-authored-by: Alexis Rolland <alexisrolland@hotmail.com>
2026-07-17 16:49:16 -04:00

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import uuid
import torch
from typing_extensions import override
from comfy_api.latest import IO, ComfyExtension, Input
from comfy_api_nodes.apis.heygen import (
HEYGEN_AVATAR_MAP,
HEYGEN_AVATAR_OPTIONS,
HEYGEN_TRANSLATE_LANGUAGES,
HEYGEN_VOICE_GENERAL_MAP,
HEYGEN_VOICE_GENERAL_OPTIONS,
HEYGEN_VOICE_TTS_MAP,
HEYGEN_VOICE_TTS_OPTIONS,
)
from comfy_api_nodes.util import (
ApiEndpoint,
audio_bytes_to_audio_input,
download_url_as_bytesio,
download_url_to_image_tensor,
download_url_to_video_output,
downscale_image_tensor_by_max_side,
get_number_of_images,
poll_op_raw,
sync_op_raw,
upload_audio_to_comfyapi,
upload_image_to_comfyapi,
upload_images_to_comfyapi,
upload_video_to_comfyapi,
validate_string,
)
from server import PromptServer
_VIDEOS_PATH = "/proxy/heygen/v3/videos"
_TRANSLATIONS_PATH = "/proxy/heygen/v3/video-translations"
_SPEECH_PATH = "/proxy/heygen/v3/voices/speech"
_AVATARS_PATH = "/proxy/heygen/v3/avatars"
_LOOKS_PATH = "/proxy/heygen/v3/avatars/looks"
_DEFAULT_VOICE_OPTION = "(avatar's default voice)"
_AVATARS_BY_ENGINE = {
e: [label for label, (_aid, _atype, engines) in HEYGEN_AVATAR_MAP.items() if e in engines]
for e in ("avatar_iv", "avatar_iii", "avatar_v")
}
async def _apply_speech_source(cls: type[IO.ComfyNode], payload: dict, speech: dict, require_voice: bool) -> None:
"""Fill script/audio speech fields of a /v3/videos payload from the DynamicCombo dict."""
if speech["speech"] == "audio":
payload["audio_url"] = await upload_audio_to_comfyapi(
cls, speech["audio"], container_format="mp3", codec_name="libmp3lame", mime_type="audio/mpeg"
)
elif speech["speech"] == "script":
validate_string(speech["text"], strip_whitespace=True, min_length=1, max_length=5000)
payload["script"] = speech["text"]
voice_id = speech.get("custom_voice_id", "").strip()
if not voice_id and speech["voice"] != _DEFAULT_VOICE_OPTION:
voice_id = HEYGEN_VOICE_GENERAL_MAP[speech["voice"]]
if voice_id:
payload["voice_id"] = voice_id
elif require_voice:
raise ValueError("A voice is required when driving the video with a text script.")
speed = speech.get("voice_speed", 1.0)
if speed != 1.0:
payload["voice_settings"] = {"speed": round(speed, 2)}
async def _create_and_poll_video(cls: type[IO.ComfyNode], payload: dict) -> dict:
"""POST a /v3/videos payload, poll until terminal, and return the final video data."""
created = await sync_op_raw(
cls,
ApiEndpoint(path=_VIDEOS_PATH, method="POST", headers={"Idempotency-Key": uuid.uuid4().hex}),
data=payload,
)
video_id = (created.get("data") or {}).get("video_id")
if not video_id:
raise ValueError(f"HeyGen did not return a video_id: {created}")
final = await poll_op_raw(
cls,
ApiEndpoint(path=f"{_VIDEOS_PATH}/{video_id}"),
status_extractor=lambda r: (r.get("data") or {}).get("status"),
queued_statuses=["pending", "waiting"],
poll_interval=5.0,
)
data = final["data"]
if not data.get("video_url"):
raise ValueError(f"HeyGen returned no video_url for video {video_id}.")
return data
async def _resolve_avatar(
cls: type[IO.ComfyNode], avatar_label: str, custom_avatar_id: str, engine_choice: str
) -> tuple[str, str | None]:
"""Resolve (avatar_id, engine_type) from the combo/override + engine widgets."""
custom_avatar_id = custom_avatar_id.strip()
if custom_avatar_id:
look = (
await sync_op_raw(
cls,
ApiEndpoint(path=f"{_LOOKS_PATH}/{custom_avatar_id}"),
final_label_on_success=None,
)
).get("data") or {}
avatar_id = custom_avatar_id
avatar_label = look.get("name") or custom_avatar_id
supported = look.get("supported_api_engines") or []
else:
avatar_id, avatar_type, supported = HEYGEN_AVATAR_MAP[avatar_label]
if engine_choice == "auto":
engine = next((e for e in ("avatar_iv", "avatar_iii", "avatar_v") if e in supported), None)
else:
engine = engine_choice
if supported and engine not in supported:
raise ValueError(
f"Avatar '{avatar_label}' does not support the {engine} engine "
f"(supported: {', '.join(supported)}). Set engine to 'auto' to pick "
"a compatible engine automatically."
)
return avatar_id, engine
class HeyGenTalkingPhotoNode(IO.ComfyNode):
"""Animate a still image of a person into a lip-synced talking video."""
@classmethod
def define_schema(cls) -> IO.Schema:
return IO.Schema(
node_id="HeyGenTalkingPhotoNode",
display_name="HeyGen Talking Photo",
category="partner/video/HeyGen",
description="Animate any image of a person into a lip-synced talking video "
"(HeyGen Avatar IV). Drive it with a text script or your own audio.",
inputs=[
IO.Image.Input(
"image",
tooltip="Image of a person to animate. Downscaled automatically if larger than 2K.",
),
IO.DynamicCombo.Input(
"speech",
display_name="speech source",
options=[
IO.DynamicCombo.Option(
"script",
[
IO.String.Input(
"text",
multiline=True,
default="",
tooltip="Text for the avatar to speak (up to 5000 characters). "
"The generated speech must be at least 1 second long.",
),
IO.Combo.Input(
"voice",
options=HEYGEN_VOICE_GENERAL_OPTIONS,
tooltip="Voice for the script (HeyGen's most popular voices).",
),
IO.String.Input(
"custom_voice_id",
default="",
optional=True,
tooltip="Optional HeyGen voice ID. When set, overrides the voice selected above. "
"Any voice from HeyGen's library (2000+) can be used.",
),
IO.Float.Input(
"voice_speed",
default=1.0,
min=0.5,
max=1.5,
step=0.05,
optional=True,
tooltip="Speech speed multiplier.",
),
],
),
IO.DynamicCombo.Option(
"audio",
[
IO.Audio.Input(
"audio",
tooltip="Audio for the avatar to lip-sync, up to 10 minutes.",
),
],
),
],
tooltip="Drive the avatar with a text script (HeyGen text-to-speech) or your own audio.",
),
IO.Combo.Input(
"resolution",
options=["720p", "1080p"],
default="1080p",
optional=True,
tooltip="Output video resolution.",
),
IO.Combo.Input(
"aspect_ratio",
options=["auto", "16:9", "9:16", "1:1", "4:5", "5:4"],
default="auto",
optional=True,
tooltip="Output aspect ratio. 'auto' follows the input image.",
),
IO.Combo.Input(
"expressiveness",
options=["low", "medium", "high"],
default="low",
optional=True,
tooltip="How expressive the animated face and gestures are.",
),
IO.Int.Input(
"seed",
default=42,
min=0,
max=2147483647,
control_after_generate=True,
optional=True,
tooltip="Not sent to HeyGen; change it to force a re-run.",
),
],
outputs=[IO.Video.Output()],
hidden=[
IO.Hidden.auth_token_comfy_org,
IO.Hidden.api_key_comfy_org,
IO.Hidden.unique_id,
],
is_api_node=True,
price_badge=IO.PriceBadge(
expr="""{"type":"usd","usd":0.0715,"format":{"suffix":"/second"}}""",
),
)
@classmethod
async def execute(
cls,
image: Input.Image,
speech: dict,
resolution: str = "1080p",
aspect_ratio: str = "auto",
expressiveness: str = "low",
seed: int = 0,
) -> IO.NodeOutput:
image = downscale_image_tensor_by_max_side(image, max_side=2000)
image_url = await upload_image_to_comfyapi(cls, image, mime_type="image/png", total_pixels=None)
payload = {
"type": "image",
"image": {"type": "url", "url": image_url},
"resolution": resolution,
"aspect_ratio": aspect_ratio,
"expressiveness": expressiveness,
"title": "ComfyUI Talking Photo",
}
await _apply_speech_source(cls, payload, speech, require_voice=True)
video = await _create_and_poll_video(cls, payload)
return IO.NodeOutput(await download_url_to_video_output(video["video_url"]))
class HeyGenAvatarVideoNode(IO.ComfyNode):
"""Generate a presenter video from a HeyGen avatar look."""
@classmethod
def define_schema(cls) -> IO.Schema:
return IO.Schema(
node_id="HeyGenAvatarVideoNode",
display_name="HeyGen Avatar Video",
category="partner/video/HeyGen",
description="Generate a talking-presenter video from a HeyGen avatar. "
"Includes HeyGen's most popular public avatars; any look ID can be supplied as an override.",
inputs=[
IO.DynamicCombo.Input(
"engine",
options=[
IO.DynamicCombo.Option(
"auto",
[
IO.Combo.Input(
"avatar",
options=HEYGEN_AVATAR_OPTIONS,
tooltip="Avatar look to present the video (curated from HeyGen's "
"public library). The best engine the look supports is chosen "
"automatically.",
),
],
),
IO.DynamicCombo.Option(
"avatar_iv",
[
IO.Combo.Input(
"avatar",
options=_AVATARS_BY_ENGINE["avatar_iv"],
tooltip="Avatar looks that support the Avatar IV engine.",
),
],
),
IO.DynamicCombo.Option(
"avatar_iii",
[
IO.Combo.Input(
"avatar",
options=_AVATARS_BY_ENGINE["avatar_iii"],
tooltip="Avatar looks that support the Avatar III engine.",
),
],
),
IO.DynamicCombo.Option(
"avatar_v",
[
IO.Combo.Input(
"avatar",
options=_AVATARS_BY_ENGINE["avatar_v"],
tooltip="Avatar looks that support the Avatar V engine.",
),
],
),
],
tooltip="Rendering engine; each choice lists only the avatars that support it. "
"'auto' offers every avatar and picks its best engine (Avatar IV preferred). "
"Avatar V is highest fidelity, Avatar III is the most affordable.",
),
IO.String.Input(
"custom_avatar_id",
default="",
optional=True,
tooltip="Optional HeyGen avatar look ID. When set, overrides the avatar selected above. "
"Any of HeyGen's 3000+ public looks (or your private avatars) can be used.",
),
IO.DynamicCombo.Input(
"speech",
display_name="speech source",
options=[
IO.DynamicCombo.Option(
"script",
[
IO.String.Input(
"text",
multiline=True,
default="",
tooltip="Text for the avatar to speak (up to 5000 characters). "
"The generated speech must be at least 1 second long.",
),
IO.Combo.Input(
"voice",
options=[_DEFAULT_VOICE_OPTION] + HEYGEN_VOICE_GENERAL_OPTIONS,
tooltip="Voice for the script. The default option uses the voice HeyGen assigned to the avatar.",
),
IO.String.Input(
"custom_voice_id",
default="",
optional=True,
tooltip="Optional HeyGen voice ID. When set, overrides the voice selected above. "
"Any voice from HeyGen's library (2000+) can be used.",
),
IO.Float.Input(
"voice_speed",
default=1.0,
min=0.5,
max=1.5,
step=0.05,
optional=True,
tooltip="Speech speed multiplier.",
),
],
),
IO.DynamicCombo.Option(
"audio",
[
IO.Audio.Input(
"audio",
tooltip="Audio for the avatar to lip-sync, up to 10 minutes.",
),
],
),
],
tooltip="Drive the avatar with a text script (HeyGen text-to-speech) or your own audio.",
),
IO.Combo.Input(
"resolution",
options=["720p", "1080p"],
default="1080p",
optional=True,
tooltip="Output video resolution.",
),
IO.Combo.Input(
"aspect_ratio",
options=["auto", "16:9", "9:16", "1:1", "4:5", "5:4"],
default="auto",
optional=True,
tooltip="Output aspect ratio. 'auto' follows the avatar's source footage.",
),
IO.String.Input(
"background_color",
default="",
optional=True,
tooltip="Optional solid background color as a hex code (e.g. '#00ff00'). "
"Leave empty for the avatar's own background.",
),
IO.Int.Input(
"seed",
default=42,
min=0,
max=2147483647,
control_after_generate=True,
optional=True,
tooltip="Not sent to HeyGen; change it to force a re-run.",
),
],
outputs=[IO.Video.Output()],
hidden=[
IO.Hidden.auth_token_comfy_org,
IO.Hidden.api_key_comfy_org,
IO.Hidden.unique_id,
],
is_api_node=True,
price_badge=IO.PriceBadge(
depends_on=IO.PriceBadgeDepends(widgets=["engine"]),
expr="""
widgets.engine = "avatar_iii"
? {"type":"range_usd","min_usd":0.023881,"max_usd":0.061919,"format":{"suffix":"/second"}}
: widgets.engine = "avatar_v"
? {"type":"usd","usd":0.095381,"format":{"suffix":"/second"}}
: widgets.engine = "avatar_iv"
? {"type":"range_usd","min_usd":0.0715,"max_usd":0.095381,"format":{"suffix":"/second"}}
: {"type":"range_usd","min_usd":0.023881,"max_usd":0.095381,"format":{"suffix":"/second"}}
""",
),
)
@classmethod
async def execute(
cls,
engine: dict,
speech: dict,
custom_avatar_id: str = "",
resolution: str = "1080p",
aspect_ratio: str = "auto",
background_color: str = "",
seed: int = 0,
) -> IO.NodeOutput:
avatar_id, engine_type = await _resolve_avatar(cls, engine["avatar"], custom_avatar_id, engine["engine"])
payload = {
"type": "avatar",
"avatar_id": avatar_id,
"resolution": resolution,
"aspect_ratio": aspect_ratio,
"title": "ComfyUI Avatar Video",
}
if engine_type:
payload["engine"] = {"type": engine_type}
background_color = background_color.strip()
if background_color:
if not background_color.startswith("#"):
raise ValueError("background_color must be a hex color code like '#00ff00'.")
payload["background"] = {"type": "color", "value": background_color}
await _apply_speech_source(cls, payload, speech, require_voice=False)
video = await _create_and_poll_video(cls, payload)
return IO.NodeOutput(await download_url_to_video_output(video["video_url"]))
class HeyGenCreateAvatarNode(IO.ComfyNode):
"""Create a reusable HeyGen avatar from a photo or a text prompt."""
@classmethod
def define_schema(cls) -> IO.Schema:
return IO.Schema(
node_id="HeyGenCreateAvatarNode",
display_name="HeyGen Create Avatar",
category="partner/video/HeyGen",
description="Create your own reusable HeyGen avatar from a photo of a person or "
"from a text prompt (a generated character). Feed the resulting avatar_id into "
"HeyGen Avatar Video's custom_avatar_id — and save the ID somewhere to reuse the "
"avatar in future workflows.",
inputs=[
IO.DynamicCombo.Input(
"source",
options=[
IO.DynamicCombo.Option(
"prompt",
[
IO.String.Input(
"prompt",
multiline=True,
default="",
tooltip="Description of the avatar to generate (up to 1000 characters).",
),
IO.Autogrow.Input(
"reference_images",
template=IO.Autogrow.TemplateNames(
IO.Image.Input("ref_image"),
names=[f"ref_image_{i}" for i in range(1, 4)],
min=0,
),
tooltip="Up to 3 reference images guiding the generated look.",
),
],
),
IO.DynamicCombo.Option(
"photo",
[
IO.Image.Input(
"identity_photo",
tooltip="Photo of the person to turn into an avatar. "
"Downscaled automatically if larger than 2K.",
),
],
),
],
tooltip="Generate a new character from a text prompt, or create the avatar "
"from a connected photo of a person.",
),
],
outputs=[
IO.String.Output(
display_name="avatar_id",
tooltip="Avatar look ID. Pass it to HeyGen Avatar Video's custom_avatar_id; "
"save it to reuse the avatar later.",
),
IO.Image.Output(display_name="preview"),
],
hidden=[
IO.Hidden.auth_token_comfy_org,
IO.Hidden.api_key_comfy_org,
IO.Hidden.unique_id,
],
is_api_node=True,
price_badge=IO.PriceBadge(
expr="""{"type":"usd","usd":1.43}""",
),
)
@classmethod
async def execute(
cls,
source: dict,
) -> IO.NodeOutput:
payload: dict = {"name": "ComfyUI Avatar"}
if source["source"] == "photo":
image = downscale_image_tensor_by_max_side(source["identity_photo"], max_side=2000)
image_url = await upload_image_to_comfyapi(cls, image, mime_type="image/png", total_pixels=None)
payload["type"] = "photo"
payload["file"] = {"type": "url", "url": image_url}
else:
validate_string(source["prompt"], strip_whitespace=True, min_length=1, max_length=1000)
payload["type"] = "prompt"
payload["prompt"] = source["prompt"]
ref_tensors = [t for t in (source.get("reference_images") or {}).values() if t is not None]
if ref_tensors:
n_images = sum(get_number_of_images(t) for t in ref_tensors)
if n_images > 3:
raise ValueError(f"HeyGen accepts at most 3 reference images; got {n_images}.")
scaled = [downscale_image_tensor_by_max_side(t, max_side=2000) for t in ref_tensors]
ref_urls = await upload_images_to_comfyapi(
cls, scaled, max_images=3, mime_type="image/png", total_pixels=None
)
payload["reference_images"] = [{"type": "url", "url": u} for u in ref_urls]
created = await sync_op_raw(
cls,
ApiEndpoint(path=_AVATARS_PATH, method="POST"),
data=payload,
)
look_id = ((created.get("data") or {}).get("avatar_item") or {}).get("id")
if not look_id:
raise ValueError(f"HeyGen did not return an avatar: {created}")
final = await poll_op_raw(
cls,
ApiEndpoint(path=f"{_LOOKS_PATH}/{look_id}"),
# A missing status means the look needed no training and is ready.
status_extractor=lambda r: (r.get("data") or {}).get("status") or "completed",
failed_statuses=["failed", "pending_consent"],
poll_interval=5.0,
)
data = final["data"]
if data.get("preview_image_url"):
preview = await download_url_to_image_tensor(data["preview_image_url"])
else:
preview = torch.zeros(1, 64, 64, 3)
PromptServer.instance.send_progress_text(
f"Please save the avatar_id for reuse.\n\navatar_id: {look_id}",
cls.hidden.unique_id,
)
return IO.NodeOutput(look_id, preview)
class HeyGenVideoTranslateNode(IO.ComfyNode):
"""Translate a spoken video into another language with voice cloning and lip sync."""
@classmethod
def define_schema(cls) -> IO.Schema:
return IO.Schema(
node_id="HeyGenVideoTranslateNode",
display_name="HeyGen Video Translate",
category="partner/video/HeyGen",
description="Translate a spoken video into another language. Clones the original "
"speaker's voice and re-animates the mouth to match the translated speech.",
inputs=[
IO.Video.Input(
"video",
tooltip="Video with speech to translate.",
),
IO.Combo.Input(
"output_language",
options=HEYGEN_TRANSLATE_LANGUAGES,
tooltip="Target language for the translated video.",
),
IO.Combo.Input(
"mode",
options=["speed", "precision"],
default="speed",
tooltip="'speed' is faster; 'precision' produces higher-quality lip sync at twice the price.",
),
IO.Boolean.Input(
"translate_audio_only",
default=False,
optional=True,
tooltip="Only swap the audio track, keeping the original mouth movements (no lip sync).",
),
IO.Int.Input(
"speaker_count",
default=0,
min=0,
max=10,
optional=True,
tooltip="Number of speakers in the video. 0 = detect automatically.",
),
IO.Int.Input(
"seed",
default=42,
min=0,
max=2147483647,
control_after_generate=True,
optional=True,
tooltip="Not sent to HeyGen; change it to force a re-run.",
),
],
outputs=[IO.Video.Output()],
hidden=[
IO.Hidden.auth_token_comfy_org,
IO.Hidden.api_key_comfy_org,
IO.Hidden.unique_id,
],
is_api_node=True,
price_badge=IO.PriceBadge(
depends_on=IO.PriceBadgeDepends(widgets=["mode"]),
expr="""{"type":"usd","usd": widgets.mode = "precision" ? 0.095381 : 0.047619,"""
""""format":{"suffix":"/second"}}""",
),
)
@classmethod
async def execute(
cls,
video: Input.Video,
output_language: str,
mode: str,
translate_audio_only: bool = False,
speaker_count: int = 0,
seed: int = 0,
) -> IO.NodeOutput:
video_url = await upload_video_to_comfyapi(cls, video)
payload = {
"video": {"type": "url", "url": video_url},
"output_languages": [output_language],
"mode": mode,
"translate_audio_only": translate_audio_only,
"title": "ComfyUI Video Translate",
}
if speaker_count > 0:
payload["speaker_num"] = speaker_count
created = await sync_op_raw(
cls,
ApiEndpoint(path=_TRANSLATIONS_PATH, method="POST"),
data=payload,
)
translation_ids = (created.get("data") or {}).get("video_translation_ids") or []
if not translation_ids:
raise ValueError(f"HeyGen did not return a translation ID: {created}")
final = await poll_op_raw(
cls,
ApiEndpoint(path=f"{_TRANSLATIONS_PATH}/{translation_ids[0]}"),
status_extractor=lambda r: (r.get("data") or {}).get("status"),
queued_statuses=["pending"],
poll_interval=5.0,
)
data = final["data"]
if not data.get("video_url"):
raise ValueError(f"HeyGen returned no video_url for translation {translation_ids[0]}.")
return IO.NodeOutput(await download_url_to_video_output(data["video_url"]))
class HeyGenTextToSpeechNode(IO.ComfyNode):
"""Synthesize speech audio from text with HeyGen's Starfish TTS engine."""
@classmethod
def define_schema(cls) -> IO.Schema:
return IO.Schema(
node_id="HeyGenTextToSpeechNode",
display_name="HeyGen Text to Speech",
category="partner/audio/HeyGen",
description="Generate speech audio from text using HeyGen's Starfish TTS engine. "
"Includes HeyGen's most popular voices across 17 languages.",
inputs=[
IO.String.Input(
"text",
multiline=True,
default="",
tooltip="Text to synthesize (up to 5000 characters). The generated speech "
"must be at least 1 second long.",
),
IO.Combo.Input(
"voice",
options=HEYGEN_VOICE_TTS_OPTIONS,
tooltip="Voice to use (curated from HeyGen's most popular Starfish-compatible voices).",
),
IO.String.Input(
"custom_voice_id",
default="",
optional=True,
tooltip="Optional HeyGen voice ID. When set, overrides the voice selected above. "
"The voice must support the Starfish engine.",
),
IO.Float.Input(
"speed",
default=1.0,
min=0.5,
max=2.0,
step=0.05,
optional=True,
tooltip="Speech speed multiplier.",
),
IO.Boolean.Input(
"ssml",
default=False,
optional=True,
tooltip="Treat the text as SSML markup (for pauses, emphasis, and pronunciation control).",
),
IO.Int.Input(
"seed",
default=42,
min=0,
max=2147483647,
control_after_generate=True,
optional=True,
tooltip="Not sent to HeyGen; change it to force a re-run.",
),
],
outputs=[IO.Audio.Output()],
hidden=[
IO.Hidden.auth_token_comfy_org,
IO.Hidden.api_key_comfy_org,
IO.Hidden.unique_id,
],
is_api_node=True,
price_badge=IO.PriceBadge(
expr="""{"type":"usd","usd":0.00095381,"format":{"approximate":true,"suffix":"/second"}}""",
),
)
@classmethod
async def execute(
cls,
text: str,
voice: str,
custom_voice_id: str = "",
speed: float = 1.0,
ssml: bool = False,
seed: int = 0,
) -> IO.NodeOutput:
validate_string(text, strip_whitespace=True, min_length=1, max_length=5000)
payload = {
"text": text,
"voice_id": custom_voice_id.strip() or HEYGEN_VOICE_TTS_MAP[voice],
"speed": round(speed, 2),
}
if ssml:
payload["input_type"] = "ssml"
response = await sync_op_raw(
cls,
ApiEndpoint(path=_SPEECH_PATH, method="POST"),
data=payload,
)
audio_url = (response.get("data") or {}).get("audio_url")
if not audio_url:
raise ValueError(f"HeyGen did not return an audio_url: {response}")
audio_bytes = await download_url_as_bytesio(audio_url)
return IO.NodeOutput(audio_bytes_to_audio_input(audio_bytes.getvalue()))
class HeyGenExtension(ComfyExtension):
@override
async def get_node_list(self) -> list[type[IO.ComfyNode]]:
return [
HeyGenTalkingPhotoNode,
HeyGenAvatarVideoNode,
HeyGenCreateAvatarNode,
HeyGenVideoTranslateNode,
HeyGenTextToSpeechNode,
]
async def comfy_entrypoint() -> HeyGenExtension:
return HeyGenExtension()
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