fix: resolve linting issues in SaveVideo codec options

- Add missing 'logging' import used in speed preset error handling
- Apply ruff format to all PR-changed files

Amp-Thread-ID: https://ampcode.com/threads/T-019ca1cb-0150-7549-8b1b-6713060d3408

comfy_api/latest/__init__.py

@@ -7,7 +7,14 @@ from comfy_api.internal.singleton import ProxiedSingleton
 from comfy_api.internal.async_to_sync import create_sync_class
 from ._input import ImageInput, AudioInput, MaskInput, LatentInput, VideoInput
 from ._input_impl import VideoFromFile, VideoFromComponents
-from ._util import VideoCodec, VideoContainer, VideoComponents, MESH, VOXEL
+from ._util import (
+    VideoCodec,
+    VideoContainer,
+    VideoComponents,
+    VideoSpeedPreset,
+    MESH,
+    VOXEL,
+)
 from . import _io_public as io
 from . import _ui_public as ui
 from comfy_execution.utils import get_executing_context
@@ -45,7 +52,9 @@ class ComfyAPI_latest(ComfyAPIBase):
                 raise ValueError("node_id must be provided if not in executing context")
 
             # Convert preview_image to PreviewImageTuple if needed
-            to_display: PreviewImageTuple | Image.Image | ImageInput | None = preview_image
+            to_display: PreviewImageTuple | Image.Image | ImageInput | None = (
+                preview_image
+            )
             if to_display is not None:
                 # First convert to PIL Image if needed
                 if isinstance(to_display, ImageInput):
@@ -75,6 +84,7 @@ class ComfyAPI_latest(ComfyAPIBase):
 
     execution: Execution
 
+
 class ComfyExtension(ABC):
     async def on_load(self) -> None:
         """
@@ -88,6 +98,7 @@ class ComfyExtension(ABC):
         Returns a list of nodes that this extension provides.
         """
 
+
 class Input:
     Image = ImageInput
     Audio = AudioInput
@@ -95,17 +106,21 @@ class Input:
     Latent = LatentInput
     Video = VideoInput
 
+
 class InputImpl:
     VideoFromFile = VideoFromFile
     VideoFromComponents = VideoFromComponents
 
+
 class Types:
     VideoCodec = VideoCodec
     VideoContainer = VideoContainer
     VideoComponents = VideoComponents
+    VideoSpeedPreset = VideoSpeedPreset
     MESH = MESH
     VOXEL = VOXEL
 
+
 ComfyAPI = ComfyAPI_latest
 
 # Create a synchronous version of the API

comfy_api/latest/_input_impl/video_types.py

@@ -10,7 +10,13 @@ import json
 import numpy as np
 import math
 import torch
-from .._util import VideoContainer, VideoCodec, VideoComponents
+from .._util import (
+    VideoContainer,
+    VideoCodec,
+    VideoComponents,
+    VideoSpeedPreset,
+    quality_to_crf,
+)
 
 
 def container_to_output_format(container_format: str | None) -> str | None:
@@ -82,9 +88,9 @@ class VideoFromFile(VideoInput):
         """
         if isinstance(self.__file, io.BytesIO):
             self.__file.seek(0)  # Reset the BytesIO object to the beginning
-        with av.open(self.__file, mode='r') as container:
+        with av.open(self.__file, mode="r") as container:
             for stream in container.streams:
-                if stream.type == 'video':
+                if stream.type == "video":
                     assert isinstance(stream, av.VideoStream)
                     return stream.width, stream.height
         raise ValueError(f"No video stream found in file '{self.__file}'")
@@ -138,7 +144,9 @@ class VideoFromFile(VideoInput):
             # 2. Try to estimate from duration and average_rate using only metadata
             if container.duration is not None and video_stream.average_rate:
                 duration_seconds = float(container.duration / av.time_base)
-                estimated_frames = int(round(duration_seconds * float(video_stream.average_rate)))
+                estimated_frames = int(
+                    round(duration_seconds * float(video_stream.average_rate))
+                )
                 if estimated_frames > 0:
                     return estimated_frames
 
@@ -148,7 +156,9 @@ class VideoFromFile(VideoInput):
                 and video_stream.average_rate
             ):
                 duration_seconds = float(video_stream.duration * video_stream.time_base)
-                estimated_frames = int(round(duration_seconds * float(video_stream.average_rate)))
+                estimated_frames = int(
+                    round(duration_seconds * float(video_stream.average_rate))
+                )
                 if estimated_frames > 0:
                     return estimated_frames
 
@@ -160,7 +170,9 @@ class VideoFromFile(VideoInput):
                     frame_count += 1
 
             if frame_count == 0:
-                raise ValueError(f"Could not determine frame count for file '{self.__file}'")
+                raise ValueError(
+                    f"Could not determine frame count for file '{self.__file}'"
+                )
             return frame_count
 
     def get_frame_rate(self) -> Fraction:
@@ -181,7 +193,9 @@ class VideoFromFile(VideoInput):
             if video_stream.frames and container.duration:
                 duration_seconds = float(container.duration / av.time_base)
                 if duration_seconds > 0:
-                    return Fraction(video_stream.frames / duration_seconds).limit_denominator()
+                    return Fraction(
+                        video_stream.frames / duration_seconds
+                    ).limit_denominator()
 
             # Last resort: match get_components_internal default
             return Fraction(1)
@@ -195,53 +209,69 @@ class VideoFromFile(VideoInput):
         """
         if isinstance(self.__file, io.BytesIO):
             self.__file.seek(0)
-        with av.open(self.__file, mode='r') as container:
+        with av.open(self.__file, mode="r") as container:
             return container.format.name
 
     def get_components_internal(self, container: InputContainer) -> VideoComponents:
         # Get video frames
         frames = []
         for frame in container.decode(video=0):
-            img = frame.to_ndarray(format='rgb24')  # shape: (H, W, 3)
+            img = frame.to_ndarray(format="rgb24")  # shape: (H, W, 3)
             img = torch.from_numpy(img) / 255.0  # shape: (H, W, 3)
             frames.append(img)
 
         images = torch.stack(frames) if len(frames) > 0 else torch.zeros(0, 3, 0, 0)
 
         # Get frame rate
-        video_stream = next(s for s in container.streams if s.type == 'video')
+        video_stream = next(s for s in container.streams if s.type == "video")
-        frame_rate = Fraction(video_stream.average_rate) if video_stream and video_stream.average_rate else Fraction(1)
+        frame_rate = (
+            Fraction(video_stream.average_rate)
+            if video_stream and video_stream.average_rate
+            else Fraction(1)
+        )
 
         # Get audio if available
         audio = None
         try:
             container.seek(0)  # Reset the container to the beginning
             for stream in container.streams:
-                if stream.type != 'audio':
+                if stream.type != "audio":
                     continue
                 assert isinstance(stream, av.AudioStream)
                 audio_frames = []
                 for packet in container.demux(stream):
                     for frame in packet.decode():
                         assert isinstance(frame, av.AudioFrame)
-                        audio_frames.append(frame.to_ndarray())  # shape: (channels, samples)
+                        audio_frames.append(
+                            frame.to_ndarray()
+                        )  # shape: (channels, samples)
                 if len(audio_frames) > 0:
-                    audio_data = np.concatenate(audio_frames, axis=1)  # shape: (channels, total_samples)
+                    audio_data = np.concatenate(
-                    audio_tensor = torch.from_numpy(audio_data).unsqueeze(0)  # shape: (1, channels, total_samples)
+                        audio_frames, axis=1
-                    audio = AudioInput({
+                    )  # shape: (channels, total_samples)
-                        "waveform": audio_tensor,
+                    audio_tensor = torch.from_numpy(audio_data).unsqueeze(
-                        "sample_rate": int(stream.sample_rate) if stream.sample_rate else 1,
+                        0
-                    })
+                    )  # shape: (1, channels, total_samples)
+                    audio = AudioInput(
+                        {
+                            "waveform": audio_tensor,
+                            "sample_rate": int(stream.sample_rate)
+                            if stream.sample_rate
+                            else 1,
+                        }
+                    )
         except StopIteration:
             pass  # No audio stream
 
         metadata = container.metadata
-        return VideoComponents(images=images, audio=audio, frame_rate=frame_rate, metadata=metadata)
+        return VideoComponents(
+            images=images, audio=audio, frame_rate=frame_rate, metadata=metadata
+        )
 
     def get_components(self) -> VideoComponents:
         if isinstance(self.__file, io.BytesIO):
             self.__file.seek(0)  # Reset the BytesIO object to the beginning
-        with av.open(self.__file, mode='r') as container:
+        with av.open(self.__file, mode="r") as container:
             return self.get_components_internal(container)
         raise ValueError(f"No video stream found in file '{self.__file}'")
 
@@ -250,17 +280,37 @@ class VideoFromFile(VideoInput):
         path: str | io.BytesIO,
         format: VideoContainer = VideoContainer.AUTO,
         codec: VideoCodec = VideoCodec.AUTO,
-        metadata: Optional[dict] = None
+        metadata: Optional[dict] = None,
+        quality: Optional[int] = None,
+        speed: Optional[VideoSpeedPreset] = None,
+        profile: Optional[str] = None,
+        tune: Optional[str] = None,
+        row_mt: bool = True,
+        tile_columns: Optional[int] = None,
     ):
         if isinstance(self.__file, io.BytesIO):
-            self.__file.seek(0)  # Reset the BytesIO object to the beginning
+            self.__file.seek(0)
-        with av.open(self.__file, mode='r') as container:
+        with av.open(self.__file, mode="r") as container:
             container_format = container.format.name
-            video_encoding = container.streams.video[0].codec.name if len(container.streams.video) > 0 else None
+            video_encoding = (
+                container.streams.video[0].codec.name
+                if len(container.streams.video) > 0
+                else None
+            )
             reuse_streams = True
-            if format != VideoContainer.AUTO and format not in container_format.split(","):
+            if format != VideoContainer.AUTO and format not in container_format.split(
+                ","
+            ):
                 reuse_streams = False
-            if codec != VideoCodec.AUTO and codec != video_encoding and video_encoding is not None:
+            if (
+                codec != VideoCodec.AUTO
+                and codec != video_encoding
+                and video_encoding is not None
+            ):
+                reuse_streams = False
+            if quality is not None or speed is not None:
+                reuse_streams = False
+            if profile is not None or tune is not None or tile_columns is not None:
                 reuse_streams = False
 
             if not reuse_streams:
@@ -270,7 +320,13 @@ class VideoFromFile(VideoInput):
                     path,
                     format=format,
                     codec=codec,
-                    metadata=metadata
+                    metadata=metadata,
+                    quality=quality,
+                    speed=speed,
+                    profile=profile,
+                    tune=tune,
+                    row_mt=row_mt,
+                    tile_columns=tile_columns,
                 )
 
             streams = container.streams
@@ -293,8 +349,12 @@ class VideoFromFile(VideoInput):
                 # Add streams to the new container
                 stream_map = {}
                 for stream in streams:
-                    if isinstance(stream, (av.VideoStream, av.AudioStream, SubtitleStream)):
+                    if isinstance(
-                        out_stream = output_container.add_stream_from_template(template=stream, opaque=True)
+                        stream, (av.VideoStream, av.AudioStream, SubtitleStream)
+                    ):
+                        out_stream = output_container.add_stream_from_template(
+                            template=stream, opaque=True
+                        )
                         stream_map[stream] = out_stream
 
                 # Write packets to the new container
@@ -322,7 +382,7 @@ class VideoFromComponents(VideoInput):
         return VideoComponents(
             images=self.__components.images,
             audio=self.__components.audio,
-            frame_rate=self.__components.frame_rate
+            frame_rate=self.__components.frame_rate,
         )
 
     def save_to(
@@ -330,54 +390,137 @@ class VideoFromComponents(VideoInput):
         path: str,
         format: VideoContainer = VideoContainer.AUTO,
         codec: VideoCodec = VideoCodec.AUTO,
-        metadata: Optional[dict] = None
+        metadata: Optional[dict] = None,
+        quality: Optional[int] = None,
+        speed: Optional[VideoSpeedPreset] = None,
+        profile: Optional[str] = None,
+        tune: Optional[str] = None,
+        row_mt: bool = True,
+        tile_columns: Optional[int] = None,
     ):
-        if format != VideoContainer.AUTO and format != VideoContainer.MP4:
+        """
-            raise ValueError("Only MP4 format is supported for now")
+        Save video to file with optional encoding parameters.
-        if codec != VideoCodec.AUTO and codec != VideoCodec.H264:
+
-            raise ValueError("Only H264 codec is supported for now")
+        Args:
-        extra_kwargs = {}
+            path: Output file path
-        if isinstance(format, VideoContainer) and format != VideoContainer.AUTO:
+            format: Container format (mp4, webm, or auto)
-            extra_kwargs["format"] = format.value
+            codec: Video codec (h264, vp9, or auto)
-        with av.open(path, mode='w', options={'movflags': 'use_metadata_tags'}, **extra_kwargs) as output:
+            metadata: Optional metadata dict to embed
-            # Add metadata before writing any streams
+            quality: Quality percentage 0-100 (100=best). Maps to CRF internally.
+            speed: Encoding speed preset. Slower = better compression.
+            profile: H.264 profile (baseline, main, high)
+            tune: H.264 tune option (film, animation, grain, etc.)
+            row_mt: VP9 row-based multi-threading
+            tile_columns: VP9 tile columns (power of 2)
+        """
+        resolved_format = format
+        resolved_codec = codec
+
+        if resolved_format == VideoContainer.AUTO:
+            resolved_format = VideoContainer.MP4
+        if resolved_codec == VideoCodec.AUTO:
+            if resolved_format == VideoContainer.WEBM:
+                resolved_codec = VideoCodec.VP9
+            else:
+                resolved_codec = VideoCodec.H264
+
+        if resolved_format == VideoContainer.WEBM and resolved_codec == VideoCodec.H264:
+            raise ValueError("H264 codec is not supported with WebM container")
+        if resolved_format == VideoContainer.MP4 and resolved_codec == VideoCodec.VP9:
+            raise ValueError("VP9 codec is not supported with MP4 container")
+
+        codec_map = {
+            VideoCodec.H264: "libx264",
+            VideoCodec.VP9: "libvpx-vp9",
+        }
+        if resolved_codec not in codec_map:
+            raise ValueError(f"Unsupported codec: {resolved_codec}")
+        ffmpeg_codec = codec_map[resolved_codec]
+
+        extra_kwargs = {"format": resolved_format.value}
+
+        container_options = {}
+        if resolved_format == VideoContainer.MP4:
+            container_options["movflags"] = "use_metadata_tags"
+
+        with av.open(
+            path, mode="w", options=container_options, **extra_kwargs
+        ) as output:
             if metadata is not None:
                 for key, value in metadata.items():
                     output.metadata[key] = json.dumps(value)
 
             frame_rate = Fraction(round(self.__components.frame_rate * 1000), 1000)
-            # Create a video stream
+            video_stream = output.add_stream(ffmpeg_codec, rate=frame_rate)
-            video_stream = output.add_stream('h264', rate=frame_rate)
             video_stream.width = self.__components.images.shape[2]
             video_stream.height = self.__components.images.shape[1]
-            video_stream.pix_fmt = 'yuv420p'
 
-            # Create an audio stream
+            video_stream.pix_fmt = "yuv420p"
+            if resolved_codec == VideoCodec.VP9:
+                video_stream.bit_rate = 0
+
+            if quality is not None:
+                crf = quality_to_crf(quality, ffmpeg_codec)
+                video_stream.options["crf"] = str(crf)
+
+            if speed is not None and speed != VideoSpeedPreset.AUTO:
+                if isinstance(speed, str):
+                    speed = VideoSpeedPreset(speed)
+                preset = speed.to_ffmpeg_preset(ffmpeg_codec)
+                if resolved_codec == VideoCodec.VP9:
+                    video_stream.options["cpu-used"] = preset
+                else:
+                    video_stream.options["preset"] = preset
+
+            # H.264-specific options
+            if resolved_codec == VideoCodec.H264:
+                if profile is not None:
+                    video_stream.options["profile"] = profile
+                if tune is not None:
+                    video_stream.options["tune"] = tune
+
+            # VP9-specific options
+            if resolved_codec == VideoCodec.VP9:
+                if row_mt:
+                    video_stream.options["row-mt"] = "1"
+                if tile_columns is not None:
+                    video_stream.options["tile-columns"] = str(tile_columns)
+
             audio_sample_rate = 1
             audio_stream: Optional[av.AudioStream] = None
             if self.__components.audio:
-                audio_sample_rate = int(self.__components.audio['sample_rate'])
+                audio_sample_rate = int(self.__components.audio["sample_rate"])
-                audio_stream = output.add_stream('aac', rate=audio_sample_rate)
+                audio_codec = (
+                    "libopus" if resolved_format == VideoContainer.WEBM else "aac"
+                )
+                audio_stream = output.add_stream(audio_codec, rate=audio_sample_rate)
 
-            # Encode video
             for i, frame in enumerate(self.__components.images):
-                img = (frame * 255).clamp(0, 255).byte().cpu().numpy() # shape: (H, W, 3)
+                img = (frame * 255).clamp(0, 255).byte().cpu().numpy()
-                frame = av.VideoFrame.from_ndarray(img, format='rgb24')
+                video_frame = av.VideoFrame.from_ndarray(img, format="rgb24")
-                frame = frame.reformat(format='yuv420p')  # Convert to YUV420P as required by h264
+                video_frame = video_frame.reformat(format="yuv420p")
-                packet = video_stream.encode(frame)
+                packet = video_stream.encode(video_frame)
                 output.mux(packet)
 
-            # Flush video
             packet = video_stream.encode(None)
             output.mux(packet)
 
             if audio_stream and self.__components.audio:
-                waveform = self.__components.audio['waveform']
+                waveform = self.__components.audio["waveform"]
-                waveform = waveform[:, :, :math.ceil((audio_sample_rate / frame_rate) * self.__components.images.shape[0])]
+                waveform = waveform[
-                frame = av.AudioFrame.from_ndarray(waveform.movedim(2, 1).reshape(1, -1).float().numpy(), format='flt', layout='mono' if waveform.shape[1] == 1 else 'stereo')
+                    :,
-                frame.sample_rate = audio_sample_rate
+                    :,
-                frame.pts = 0
+                    : math.ceil(
-                output.mux(audio_stream.encode(frame))
+                        (audio_sample_rate / frame_rate)
-
+                        * self.__components.images.shape[0]
-                # Flush encoder
+                    ),
+                ]
+                audio_frame = av.AudioFrame.from_ndarray(
+                    waveform.movedim(2, 1).reshape(1, -1).float().numpy(),
+                    format="flt",
+                    layout="mono" if waveform.shape[1] == 1 else "stereo",
+                )
+                audio_frame.sample_rate = audio_sample_rate
+                audio_frame.pts = 0
+                output.mux(audio_stream.encode(audio_frame))
                 output.mux(audio_stream.encode(None))

comfy_api/latest/_io.py

@@ -153,7 +153,7 @@ class Input(_IO_V3):
     '''
     Base class for a V3 Input.
     '''
-    def __init__(self, id: str, display_name: str=None, optional=False, tooltip: str=None, lazy: bool=None, extra_dict=None, raw_link: bool=None):
+    def __init__(self, id: str, display_name: str=None, optional=False, tooltip: str=None, lazy: bool=None, extra_dict=None, raw_link: bool=None, advanced: bool=None):
         super().__init__()
         self.id = id
         self.display_name = display_name
@@ -162,6 +162,7 @@ class Input(_IO_V3):
         self.lazy = lazy
         self.extra_dict = extra_dict if extra_dict is not None else {}
         self.rawLink = raw_link
+        self.advanced = advanced
 
     def as_dict(self):
         return prune_dict({
@@ -170,6 +171,7 @@ class Input(_IO_V3):
             "tooltip": self.tooltip,
             "lazy": self.lazy,
             "rawLink": self.rawLink,
+            "advanced": self.advanced,
         }) | prune_dict(self.extra_dict)
 
     def get_io_type(self):
@@ -184,8 +186,8 @@ class WidgetInput(Input):
     '''
     def __init__(self, id: str, display_name: str=None, optional=False, tooltip: str=None, lazy: bool=None,
                  default: Any=None,
-                 socketless: bool=None, widget_type: str=None, force_input: bool=None, extra_dict=None, raw_link: bool=None):
+                 socketless: bool=None, widget_type: str=None, force_input: bool=None, extra_dict=None, raw_link: bool=None, advanced: bool=None):
-        super().__init__(id, display_name, optional, tooltip, lazy, extra_dict, raw_link)
+        super().__init__(id, display_name, optional, tooltip, lazy, extra_dict, raw_link, advanced)
         self.default = default
         self.socketless = socketless
         self.widget_type = widget_type
@@ -242,8 +244,8 @@ class Boolean(ComfyTypeIO):
         '''Boolean input.'''
         def __init__(self, id: str, display_name: str=None, optional=False, tooltip: str=None, lazy: bool=None,
                     default: bool=None, label_on: str=None, label_off: str=None,
-                    socketless: bool=None, force_input: bool=None, extra_dict=None, raw_link: bool=None):
+                    socketless: bool=None, force_input: bool=None, extra_dict=None, raw_link: bool=None, advanced: bool=None):
-            super().__init__(id, display_name, optional, tooltip, lazy, default, socketless, None, force_input, extra_dict, raw_link)
+            super().__init__(id, display_name, optional, tooltip, lazy, default, socketless, None, force_input, extra_dict, raw_link, advanced)
             self.label_on = label_on
             self.label_off = label_off
             self.default: bool
@@ -262,8 +264,8 @@ class Int(ComfyTypeIO):
         '''Integer input.'''
         def __init__(self, id: str, display_name: str=None, optional=False, tooltip: str=None, lazy: bool=None,
                     default: int=None, min: int=None, max: int=None, step: int=None, control_after_generate: bool=None,
-                    display_mode: NumberDisplay=None, socketless: bool=None, force_input: bool=None, extra_dict=None, raw_link: bool=None):
+                    display_mode: NumberDisplay=None, socketless: bool=None, force_input: bool=None, extra_dict=None, raw_link: bool=None, advanced: bool=None):
-            super().__init__(id, display_name, optional, tooltip, lazy, default, socketless, None, force_input, extra_dict, raw_link)
+            super().__init__(id, display_name, optional, tooltip, lazy, default, socketless, None, force_input, extra_dict, raw_link, advanced)
             self.min = min
             self.max = max
             self.step = step
@@ -288,8 +290,8 @@ class Float(ComfyTypeIO):
         '''Float input.'''
         def __init__(self, id: str, display_name: str=None, optional=False, tooltip: str=None, lazy: bool=None,
                     default: float=None, min: float=None, max: float=None, step: float=None, round: float=None,
-                    display_mode: NumberDisplay=None, socketless: bool=None, force_input: bool=None, extra_dict=None, raw_link: bool=None):
+                    display_mode: NumberDisplay=None, socketless: bool=None, force_input: bool=None, extra_dict=None, raw_link: bool=None, advanced: bool=None):
-            super().__init__(id, display_name, optional, tooltip, lazy, default, socketless, None, force_input, extra_dict, raw_link)
+            super().__init__(id, display_name, optional, tooltip, lazy, default, socketless, None, force_input, extra_dict, raw_link, advanced)
             self.min = min
             self.max = max
             self.step = step
@@ -314,8 +316,8 @@ class String(ComfyTypeIO):
         '''String input.'''
         def __init__(self, id: str, display_name: str=None, optional=False, tooltip: str=None, lazy: bool=None,
                     multiline=False, placeholder: str=None, default: str=None, dynamic_prompts: bool=None,
-                    socketless: bool=None, force_input: bool=None, extra_dict=None, raw_link: bool=None):
+                    socketless: bool=None, force_input: bool=None, extra_dict=None, raw_link: bool=None, advanced: bool=None):
-            super().__init__(id, display_name, optional, tooltip, lazy, default, socketless, None, force_input, extra_dict, raw_link)
+            super().__init__(id, display_name, optional, tooltip, lazy, default, socketless, None, force_input, extra_dict, raw_link, advanced)
             self.multiline = multiline
             self.placeholder = placeholder
             self.dynamic_prompts = dynamic_prompts
@@ -350,12 +352,13 @@ class Combo(ComfyTypeIO):
             socketless: bool=None,
             extra_dict=None,
             raw_link: bool=None,
+            advanced: bool=None,
         ):
             if isinstance(options, type) and issubclass(options, Enum):
                 options = [v.value for v in options]
             if isinstance(default, Enum):
                 default = default.value
-            super().__init__(id, display_name, optional, tooltip, lazy, default, socketless, None, None, extra_dict, raw_link)
+            super().__init__(id, display_name, optional, tooltip, lazy, default, socketless, None, None, extra_dict, raw_link, advanced)
             self.multiselect = False
             self.options = options
             self.control_after_generate = control_after_generate
@@ -387,8 +390,8 @@ class MultiCombo(ComfyTypeI):
     class Input(Combo.Input):
         def __init__(self, id: str, options: list[str], display_name: str=None, optional=False, tooltip: str=None, lazy: bool=None,
                     default: list[str]=None, placeholder: str=None, chip: bool=None, control_after_generate: bool=None,
-                    socketless: bool=None, extra_dict=None, raw_link: bool=None):
+                    socketless: bool=None, extra_dict=None, raw_link: bool=None, advanced: bool=None):
-            super().__init__(id, options, display_name, optional, tooltip, lazy, default, control_after_generate, socketless=socketless, extra_dict=extra_dict, raw_link=raw_link)
+            super().__init__(id, options, display_name, optional, tooltip, lazy, default, control_after_generate, socketless=socketless, extra_dict=extra_dict, raw_link=raw_link, advanced=advanced)
             self.multiselect = True
             self.placeholder = placeholder
             self.chip = chip
@@ -421,9 +424,9 @@ class Webcam(ComfyTypeIO):
         Type = str
         def __init__(
                 self, id: str, display_name: str=None, optional=False,
-                tooltip: str=None, lazy: bool=None, default: str=None, socketless: bool=None, extra_dict=None, raw_link: bool=None
+                tooltip: str=None, lazy: bool=None, default: str=None, socketless: bool=None, extra_dict=None, raw_link: bool=None, advanced: bool=None
         ):
-            super().__init__(id, display_name, optional, tooltip, lazy, default, socketless, None, None, extra_dict, raw_link)
+            super().__init__(id, display_name, optional, tooltip, lazy, default, socketless, None, None, extra_dict, raw_link, advanced)
 
 
 @comfytype(io_type="MASK")
@@ -776,7 +779,7 @@ class MultiType:
         '''
         Input that permits more than one input type; if `id` is an instance of `ComfyType.Input`, then that input will be used to create a widget (if applicable) with overridden values.
         '''
-        def __init__(self, id: str | Input, types: list[type[_ComfyType] | _ComfyType], display_name: str=None, optional=False, tooltip: str=None, lazy: bool=None, extra_dict=None, raw_link: bool=None):
+        def __init__(self, id: str | Input, types: list[type[_ComfyType] | _ComfyType], display_name: str=None, optional=False, tooltip: str=None, lazy: bool=None, extra_dict=None, raw_link: bool=None, advanced: bool=None):
             # if id is an Input, then use that Input with overridden values
             self.input_override = None
             if isinstance(id, Input):
@@ -789,7 +792,7 @@ class MultiType:
                 # if is a widget input, make sure widget_type is set appropriately
                 if isinstance(self.input_override, WidgetInput):
                     self.input_override.widget_type = self.input_override.get_io_type()
-            super().__init__(id, display_name, optional, tooltip, lazy, extra_dict, raw_link)
+            super().__init__(id, display_name, optional, tooltip, lazy, extra_dict, raw_link, advanced)
             self._io_types = types
 
         @property
@@ -843,8 +846,8 @@ class MatchType(ComfyTypeIO):
 
     class Input(Input):
         def __init__(self, id: str, template: MatchType.Template,
-                    display_name: str=None, optional=False, tooltip: str=None, lazy: bool=None, extra_dict=None, raw_link: bool=None):
+                    display_name: str=None, optional=False, tooltip: str=None, lazy: bool=None, extra_dict=None, raw_link: bool=None, advanced: bool=None):
-            super().__init__(id, display_name, optional, tooltip, lazy, extra_dict, raw_link)
+            super().__init__(id, display_name, optional, tooltip, lazy, extra_dict, raw_link, advanced)
             self.template = template
 
         def as_dict(self):
@@ -1119,8 +1122,8 @@ class ImageCompare(ComfyTypeI):
 
   class Input(WidgetInput):
       def __init__(self, id: str, display_name: str=None, optional=False, tooltip: str=None,
-                   socketless: bool=True):
+                   socketless: bool=True, advanced: bool=None):
-          super().__init__(id, display_name, optional, tooltip, None, None, socketless)
+          super().__init__(id, display_name, optional, tooltip, None, None, socketless, None, None, None, None, advanced)
 
       def as_dict(self):
           return super().as_dict()

comfy_api/latest/_util/__init__.py

@@ -1,4 +1,10 @@
-from .video_types import VideoContainer, VideoCodec, VideoComponents
+from .video_types import (
+    VideoContainer,
+    VideoCodec,
+    VideoComponents,
+    VideoSpeedPreset,
+    quality_to_crf,
+)
 from .geometry_types import VOXEL, MESH
 from .image_types import SVG
 
@@ -7,6 +13,8 @@ __all__ = [
     "VideoContainer",
     "VideoCodec",
     "VideoComponents",
+    "VideoSpeedPreset",
+    "quality_to_crf",
     "VOXEL",
     "MESH",
     "SVG",

comfy_api/latest/_util/video_types.py

@@ -5,9 +5,11 @@ from fractions import Fraction
 from typing import Optional
 from .._input import ImageInput, AudioInput
 
+
 class VideoCodec(str, Enum):
     AUTO = "auto"
     H264 = "h264"
+    VP9 = "vp9"
 
     @classmethod
     def as_input(cls) -> list[str]:
@@ -16,9 +18,11 @@ class VideoCodec(str, Enum):
         """
         return [member.value for member in cls]
 
+
 class VideoContainer(str, Enum):
     AUTO = "auto"
     MP4 = "mp4"
+    WEBM = "webm"
 
     @classmethod
     def as_input(cls) -> list[str]:
@@ -36,8 +40,73 @@ class VideoContainer(str, Enum):
             value = cls(value)
         if value == VideoContainer.MP4 or value == VideoContainer.AUTO:
             return "mp4"
+        if value == VideoContainer.WEBM:
+            return "webm"
         return ""
 
+
+class VideoSpeedPreset(str, Enum):
+    """Encoding speed presets - slower = better compression at same quality."""
+
+    AUTO = "auto"
+    FASTEST = "Fastest"
+    FAST = "Fast"
+    BALANCED = "Balanced"
+    QUALITY = "Quality"
+    BEST = "Best"
+
+    @classmethod
+    def as_input(cls) -> list[str]:
+        return [member.value for member in cls]
+
+    def to_ffmpeg_preset(self, codec: str = "h264") -> str:
+        """Convert to FFmpeg preset string for the given codec."""
+        h264_map = {
+            VideoSpeedPreset.FASTEST: "ultrafast",
+            VideoSpeedPreset.FAST: "veryfast",
+            VideoSpeedPreset.BALANCED: "medium",
+            VideoSpeedPreset.QUALITY: "slow",
+            VideoSpeedPreset.BEST: "veryslow",
+            VideoSpeedPreset.AUTO: "medium",
+        }
+        vp9_map = {
+            VideoSpeedPreset.FASTEST: "0",
+            VideoSpeedPreset.FAST: "1",
+            VideoSpeedPreset.BALANCED: "2",
+            VideoSpeedPreset.QUALITY: "3",
+            VideoSpeedPreset.BEST: "4",
+            VideoSpeedPreset.AUTO: "2",
+        }
+        if codec in ("vp9", "libvpx-vp9"):
+            return vp9_map.get(self, "2")
+        return h264_map.get(self, "medium")
+
+
+def quality_to_crf(quality: int, codec: str = "h264") -> int:
+    """
+    Map 0-100 quality percentage to codec-appropriate CRF value.
+
+    Args:
+        quality: 0-100 where 100 is best quality
+        codec: The codec being used (h264, vp9, etc.)
+
+    Returns:
+        CRF value appropriate for the codec
+    """
+    quality = max(0, min(100, quality))
+
+    if codec in ("h264", "libx264"):
+        # h264: CRF 0-51 (lower = better), typical range 12-40
+        # quality 100 → CRF 12, quality 0 → CRF 40
+        return int(40 - (quality / 100) * 28)
+    elif codec in ("vp9", "libvpx-vp9"):
+        # vp9: CRF 0-63 (lower = better), typical range 15-50
+        # quality 100 → CRF 15, quality 0 → CRF 50
+        return int(50 - (quality / 100) * 35)
+    # Default fallback
+    return 23
+
+
 @dataclass
 class VideoComponents:
     """
@@ -48,5 +117,3 @@ class VideoComponents:
     frame_rate: Fraction
     audio: Optional[AudioInput] = None
     metadata: Optional[dict] = None
-
-

comfy_extras/nodes_video.py

@@ -1,16 +1,19 @@
 from __future__ import annotations
 
-import os
-import av
-import torch
-import folder_paths
 import json
+import logging
+import os
 from typing import Optional
+
+import av
+import folder_paths
+import torch
 from typing_extensions import override
 from fractions import Fraction
 from comfy_api.latest import ComfyExtension, io, ui, Input, InputImpl, Types
 from comfy.cli_args import args
 
+
 class SaveWEBM(io.ComfyNode):
     @classmethod
     def define_schema(cls):
@@ -23,7 +26,14 @@ class SaveWEBM(io.ComfyNode):
                 io.String.Input("filename_prefix", default="ComfyUI"),
                 io.Combo.Input("codec", options=["vp9", "av1"]),
                 io.Float.Input("fps", default=24.0, min=0.01, max=1000.0, step=0.01),
-                io.Float.Input("crf", default=32.0, min=0, max=63.0, step=1, tooltip="Higher crf means lower quality with a smaller file size, lower crf means higher quality higher filesize."),
+                io.Float.Input(
+                    "crf",
+                    default=32.0,
+                    min=0,
+                    max=63.0,
+                    step=1,
+                    tooltip="Higher crf means lower quality with a smaller file size, lower crf means higher quality higher filesize.",
+                ),
             ],
             hidden=[io.Hidden.prompt, io.Hidden.extra_pnginfo],
             is_output_node=True,
@@ -31,8 +41,13 @@ class SaveWEBM(io.ComfyNode):
 
     @classmethod
     def execute(cls, images, codec, fps, filename_prefix, crf) -> io.NodeOutput:
-        full_output_folder, filename, counter, subfolder, filename_prefix = folder_paths.get_save_image_path(
+        full_output_folder, filename, counter, subfolder, filename_prefix = (
-            filename_prefix, folder_paths.get_output_directory(), images[0].shape[1], images[0].shape[0]
+            folder_paths.get_save_image_path(
+                filename_prefix,
+                folder_paths.get_output_directory(),
+                images[0].shape[1],
+                images[0].shape[0],
+            )
         )
 
         file = f"{filename}_{counter:05}_.webm"
@@ -46,51 +61,196 @@ class SaveWEBM(io.ComfyNode):
                 container.metadata[x] = json.dumps(cls.hidden.extra_pnginfo[x])
 
         codec_map = {"vp9": "libvpx-vp9", "av1": "libsvtav1"}
-        stream = container.add_stream(codec_map[codec], rate=Fraction(round(fps * 1000), 1000))
+        stream = container.add_stream(
+            codec_map[codec], rate=Fraction(round(fps * 1000), 1000)
+        )
         stream.width = images.shape[-2]
         stream.height = images.shape[-3]
         stream.pix_fmt = "yuv420p10le" if codec == "av1" else "yuv420p"
         stream.bit_rate = 0
-        stream.options = {'crf': str(crf)}
+        stream.options = {"crf": str(crf)}
         if codec == "av1":
             stream.options["preset"] = "6"
 
         for frame in images:
-            frame = av.VideoFrame.from_ndarray(torch.clamp(frame[..., :3] * 255, min=0, max=255).to(device=torch.device("cpu"), dtype=torch.uint8).numpy(), format="rgb24")
+            frame = av.VideoFrame.from_ndarray(
+                torch.clamp(frame[..., :3] * 255, min=0, max=255)
+                .to(device=torch.device("cpu"), dtype=torch.uint8)
+                .numpy(),
+                format="rgb24",
+            )
             for packet in stream.encode(frame):
                 container.mux(packet)
         container.mux(stream.encode())
         container.close()
 
-        return io.NodeOutput(ui=ui.PreviewVideo([ui.SavedResult(file, subfolder, io.FolderType.output)]))
+        return io.NodeOutput(
+            ui=ui.PreviewVideo([ui.SavedResult(file, subfolder, io.FolderType.output)])
+        )
+
 
 class SaveVideo(io.ComfyNode):
     @classmethod
     def define_schema(cls):
+        # H264-specific inputs
+        h264_quality = io.Int.Input(
+            "quality",
+            default=80,
+            min=0,
+            max=100,
+            step=1,
+            display_name="Quality",
+            tooltip="Output quality (0-100). Higher = better quality, larger files. "
+            "Internally maps to CRF: 100→CRF 12, 50→CRF 23, 0→CRF 40.",
+        )
+        h264_speed = io.Combo.Input(
+            "speed",
+            options=Types.VideoSpeedPreset.as_input(),
+            default="auto",
+            display_name="Encoding Speed",
+            tooltip="Encoding speed preset. Slower = better compression at same quality. "
+            "Maps to FFmpeg presets: Fastest=ultrafast, Balanced=medium, Best=veryslow.",
+        )
+        h264_profile = io.Combo.Input(
+            "profile",
+            options=["auto", "baseline", "main", "high"],
+            default="auto",
+            display_name="Profile",
+            tooltip="H.264 profile. 'baseline' for max compatibility (older devices), "
+            "'main' for standard use, 'high' for best quality/compression.",
+            advanced=True,
+        )
+        h264_tune = io.Combo.Input(
+            "tune",
+            options=[
+                "auto",
+                "film",
+                "animation",
+                "grain",
+                "stillimage",
+                "fastdecode",
+                "zerolatency",
+            ],
+            default="auto",
+            display_name="Tune",
+            tooltip="Optimize encoding for specific content types. "
+            "'film' for live action, 'animation' for cartoons/anime, 'grain' to preserve film grain.",
+            advanced=True,
+        )
+
+        # VP9-specific inputs
+        vp9_quality = io.Int.Input(
+            "quality",
+            default=80,
+            min=0,
+            max=100,
+            step=1,
+            display_name="Quality",
+            tooltip="Output quality (0-100). Higher = better quality, larger files. "
+            "Internally maps to CRF: 100→CRF 15, 50→CRF 33, 0→CRF 50.",
+        )
+        vp9_speed = io.Combo.Input(
+            "speed",
+            options=Types.VideoSpeedPreset.as_input(),
+            default="auto",
+            display_name="Encoding Speed",
+            tooltip="Encoding speed. Slower = better compression. "
+            "Maps to VP9 cpu-used: Fastest=0, Balanced=2, Best=4.",
+        )
+        vp9_row_mt = io.Boolean.Input(
+            "row_mt",
+            default=True,
+            display_name="Row Multi-threading",
+            tooltip="Enable row-based multi-threading for faster encoding on multi-core CPUs.",
+            advanced=True,
+        )
+        vp9_tile_columns = io.Combo.Input(
+            "tile_columns",
+            options=["auto", "0", "1", "2", "3", "4"],
+            default="auto",
+            display_name="Tile Columns",
+            tooltip="Number of tile columns (as power of 2). More tiles = faster encoding "
+            "but slightly worse compression. 'auto' picks based on resolution.",
+            advanced=True,
+        )
+
         return io.Schema(
             node_id="SaveVideo",
             display_name="Save Video",
             category="image/video",
-            description="Saves the input images to your ComfyUI output directory.",
+            description="Saves video to the output directory. "
+            "When format/codec/quality differ from source, the video is re-encoded.",
             inputs=[
                 io.Video.Input("video", tooltip="The video to save."),
-                io.String.Input("filename_prefix", default="video/ComfyUI", tooltip="The prefix for the file to save. This may include formatting information such as %date:yyyy-MM-dd% or %Empty Latent Image.width% to include values from nodes."),
+                io.String.Input(
-                io.Combo.Input("format", options=Types.VideoContainer.as_input(), default="auto", tooltip="The format to save the video as."),
+                    "filename_prefix",
-                io.Combo.Input("codec", options=Types.VideoCodec.as_input(), default="auto", tooltip="The codec to use for the video."),
+                    default="video/ComfyUI",
+                    tooltip="The prefix for the file to save. "
+                    "Supports formatting like %date:yyyy-MM-dd%.",
+                ),
+                io.DynamicCombo.Input(
+                    "codec",
+                    options=[
+                        io.DynamicCombo.Option("auto", []),
+                        io.DynamicCombo.Option(
+                            "h264", [h264_quality, h264_speed, h264_profile, h264_tune]
+                        ),
+                        io.DynamicCombo.Option(
+                            "vp9",
+                            [vp9_quality, vp9_speed, vp9_row_mt, vp9_tile_columns],
+                        ),
+                    ],
+                    tooltip="Video codec. 'auto' preserves source when possible. "
+                    "h264 outputs MP4, vp9 outputs WebM.",
+                ),
             ],
             hidden=[io.Hidden.prompt, io.Hidden.extra_pnginfo],
             is_output_node=True,
         )
 
     @classmethod
-    def execute(cls, video: Input.Video, filename_prefix, format: str, codec) -> io.NodeOutput:
+    def execute(
+        cls, video: Input.Video, filename_prefix: str, codec: dict
+    ) -> io.NodeOutput:
+        selected_codec = codec.get("codec", "auto")
+        quality = codec.get("quality")
+        speed_str = codec.get("speed", "auto")
+
+        # H264-specific options
+        profile = codec.get("profile", "auto")
+        tune = codec.get("tune", "auto")
+
+        # VP9-specific options
+        row_mt = codec.get("row_mt", True)
+        tile_columns = codec.get("tile_columns", "auto")
+
+        if selected_codec == "auto":
+            resolved_format = Types.VideoContainer.AUTO
+            resolved_codec = Types.VideoCodec.AUTO
+        elif selected_codec == "h264":
+            resolved_format = Types.VideoContainer.MP4
+            resolved_codec = Types.VideoCodec.H264
+        elif selected_codec == "vp9":
+            resolved_format = Types.VideoContainer.WEBM
+            resolved_codec = Types.VideoCodec.VP9
+        else:
+            resolved_format = Types.VideoContainer.AUTO
+            resolved_codec = Types.VideoCodec.AUTO
+
+        speed = None
+        if speed_str:
+            try:
+                speed = Types.VideoSpeedPreset(speed_str)
+            except (ValueError, TypeError):
+                logging.warning(f"Invalid speed preset '{speed_str}', using default")
+
         width, height = video.get_dimensions()
-        full_output_folder, filename, counter, subfolder, filename_prefix = folder_paths.get_save_image_path(
+        full_output_folder, filename, counter, subfolder, filename_prefix = (
-            filename_prefix,
+            folder_paths.get_save_image_path(
-            folder_paths.get_output_directory(),
+                filename_prefix, folder_paths.get_output_directory(), width, height
-            width,
+            )
-            height
         )
+
         saved_metadata = None
         if not args.disable_metadata:
             metadata = {}
@@ -100,15 +260,25 @@ class SaveVideo(io.ComfyNode):
                 metadata["prompt"] = cls.hidden.prompt
             if len(metadata) > 0:
                 saved_metadata = metadata
-        file = f"{filename}_{counter:05}_.{Types.VideoContainer.get_extension(format)}"
+
+        extension = Types.VideoContainer.get_extension(resolved_format)
+        file = f"{filename}_{counter:05}_.{extension}"
         video.save_to(
             os.path.join(full_output_folder, file),
-            format=Types.VideoContainer(format),
+            format=resolved_format,
-            codec=codec,
+            codec=resolved_codec,
-            metadata=saved_metadata
+            metadata=saved_metadata,
+            quality=quality,
+            speed=speed,
+            profile=profile if profile != "auto" else None,
+            tune=tune if tune != "auto" else None,
+            row_mt=row_mt,
+            tile_columns=int(tile_columns) if tile_columns != "auto" else None,
         )
 
-        return io.NodeOutput(ui=ui.PreviewVideo([ui.SavedResult(file, subfolder, io.FolderType.output)]))
+        return io.NodeOutput(
+            ui=ui.PreviewVideo([ui.SavedResult(file, subfolder, io.FolderType.output)])
+        )
 
 
 class CreateVideo(io.ComfyNode):
@@ -122,7 +292,9 @@ class CreateVideo(io.ComfyNode):
             inputs=[
                 io.Image.Input("images", tooltip="The images to create a video from."),
                 io.Float.Input("fps", default=30.0, min=1.0, max=120.0, step=1.0),
-                io.Audio.Input("audio", optional=True, tooltip="The audio to add to the video."),
+                io.Audio.Input(
+                    "audio", optional=True, tooltip="The audio to add to the video."
+                ),
             ],
             outputs=[
                 io.Video.Output(),
@@ -130,11 +302,18 @@ class CreateVideo(io.ComfyNode):
         )
 
     @classmethod
-    def execute(cls, images: Input.Image, fps: float, audio: Optional[Input.Audio] = None) -> io.NodeOutput:
+    def execute(
+        cls, images: Input.Image, fps: float, audio: Optional[Input.Audio] = None
+    ) -> io.NodeOutput:
         return io.NodeOutput(
-            InputImpl.VideoFromComponents(Types.VideoComponents(images=images, audio=audio, frame_rate=Fraction(fps)))
+            InputImpl.VideoFromComponents(
+                Types.VideoComponents(
+                    images=images, audio=audio, frame_rate=Fraction(fps)
+                )
+            )
         )
 
+
 class GetVideoComponents(io.ComfyNode):
     @classmethod
     def define_schema(cls):
@@ -144,7 +323,9 @@ class GetVideoComponents(io.ComfyNode):
             category="image/video",
             description="Extracts all components from a video: frames, audio, and framerate.",
             inputs=[
-                io.Video.Input("video", tooltip="The video to extract components from."),
+                io.Video.Input(
+                    "video", tooltip="The video to extract components from."
+                ),
             ],
             outputs=[
                 io.Image.Output(display_name="images"),
@@ -156,21 +337,29 @@ class GetVideoComponents(io.ComfyNode):
     @classmethod
     def execute(cls, video: Input.Video) -> io.NodeOutput:
         components = video.get_components()
-        return io.NodeOutput(components.images, components.audio, float(components.frame_rate))
+        return io.NodeOutput(
+            components.images, components.audio, float(components.frame_rate)
+        )
 
 
 class LoadVideo(io.ComfyNode):
     @classmethod
     def define_schema(cls):
         input_dir = folder_paths.get_input_directory()
-        files = [f for f in os.listdir(input_dir) if os.path.isfile(os.path.join(input_dir, f))]
+        files = [
+            f
+            for f in os.listdir(input_dir)
+            if os.path.isfile(os.path.join(input_dir, f))
+        ]
         files = folder_paths.filter_files_content_types(files, ["video"])
         return io.Schema(
             node_id="LoadVideo",
             display_name="Load Video",
             category="image/video",
             inputs=[
-                io.Combo.Input("file", options=sorted(files), upload=io.UploadType.video),
+                io.Combo.Input(
+                    "file", options=sorted(files), upload=io.UploadType.video
+                ),
             ],
             outputs=[
                 io.Video.Output(),
@@ -209,5 +398,6 @@ class VideoExtension(ComfyExtension):
             LoadVideo,
         ]
 
+
 async def comfy_entrypoint() -> VideoExtension:
     return VideoExtension()

tests-unit/comfy_api_test/video_types_test.py

@@ -6,7 +6,7 @@ import av
 import io
 from fractions import Fraction
 from comfy_api.input_impl.video_types import VideoFromFile, VideoFromComponents
-from comfy_api.util.video_types import VideoComponents
+from comfy_api.util.video_types import VideoComponents, VideoSpeedPreset, quality_to_crf
 from comfy_api.input.basic_types import AudioInput
 from av.error import InvalidDataError
 
@@ -237,3 +237,71 @@ def test_duration_consistency(video_components):
     manual_duration = float(components.images.shape[0] / components.frame_rate)
 
     assert duration == pytest.approx(manual_duration)
+
+
+class TestVideoSpeedPreset:
+    """Tests for VideoSpeedPreset enum and its methods."""
+
+    def test_as_input_returns_all_values(self):
+        """as_input() returns all preset values"""
+        values = VideoSpeedPreset.as_input()
+        assert values == ["auto", "Fastest", "Fast", "Balanced", "Quality", "Best"]
+
+    def test_to_ffmpeg_preset_h264(self):
+        """H.264 presets map correctly"""
+        assert VideoSpeedPreset.FASTEST.to_ffmpeg_preset("h264") == "ultrafast"
+        assert VideoSpeedPreset.FAST.to_ffmpeg_preset("h264") == "veryfast"
+        assert VideoSpeedPreset.BALANCED.to_ffmpeg_preset("h264") == "medium"
+        assert VideoSpeedPreset.QUALITY.to_ffmpeg_preset("h264") == "slow"
+        assert VideoSpeedPreset.BEST.to_ffmpeg_preset("h264") == "veryslow"
+        assert VideoSpeedPreset.AUTO.to_ffmpeg_preset("h264") == "medium"
+
+    def test_to_ffmpeg_preset_vp9(self):
+        """VP9 presets map correctly"""
+        assert VideoSpeedPreset.FASTEST.to_ffmpeg_preset("vp9") == "0"
+        assert VideoSpeedPreset.FAST.to_ffmpeg_preset("vp9") == "1"
+        assert VideoSpeedPreset.BALANCED.to_ffmpeg_preset("vp9") == "2"
+        assert VideoSpeedPreset.QUALITY.to_ffmpeg_preset("vp9") == "3"
+        assert VideoSpeedPreset.BEST.to_ffmpeg_preset("vp9") == "4"
+        assert VideoSpeedPreset.AUTO.to_ffmpeg_preset("vp9") == "2"
+
+    def test_to_ffmpeg_preset_libvpx_vp9(self):
+        """libvpx-vp9 codec string also maps to VP9 presets"""
+        assert VideoSpeedPreset.BALANCED.to_ffmpeg_preset("libvpx-vp9") == "2"
+
+    def test_to_ffmpeg_preset_default_to_h264(self):
+        """Unknown codecs default to H.264 mapping"""
+        assert VideoSpeedPreset.BALANCED.to_ffmpeg_preset("unknown") == "medium"
+
+
+class TestQualityToCrf:
+    """Tests for quality_to_crf helper function."""
+
+    def test_h264_quality_boundaries(self):
+        """H.264 quality maps to correct CRF range (12-40)"""
+        assert quality_to_crf(100, "h264") == 12
+        assert quality_to_crf(0, "h264") == 40
+        assert quality_to_crf(50, "h264") == 26
+
+    def test_h264_libx264_alias(self):
+        """libx264 codec string uses H.264 mapping"""
+        assert quality_to_crf(100, "libx264") == 12
+
+    def test_vp9_quality_boundaries(self):
+        """VP9 quality maps to correct CRF range (15-50)"""
+        assert quality_to_crf(100, "vp9") == 15
+        assert quality_to_crf(0, "vp9") == 50
+        assert quality_to_crf(50, "vp9") == 32
+
+    def test_vp9_libvpx_alias(self):
+        """libvpx-vp9 codec string uses VP9 mapping"""
+        assert quality_to_crf(100, "libvpx-vp9") == 15
+
+    def test_quality_clamping(self):
+        """Quality values outside 0-100 are clamped"""
+        assert quality_to_crf(150, "h264") == 12
+        assert quality_to_crf(-50, "h264") == 40
+
+    def test_unknown_codec_fallback(self):
+        """Unknown codecs return default CRF 23"""
+        assert quality_to_crf(50, "unknown_codec") == 23