Returns a simple health status to confirm the server is running.

Extracts audio from a video file and saves it.

Args: video_path: The path to the input video file. output_audio_path: The path to save the extracted audio file. audio_codec: The audio codec to use for the output (e.g., 'mp3', 'aac', 'wav'). Defaults to 'mp3'. Returns: A status message indicating success or failure.

Trims a video to the specified start and end times.

Args: video_path: The path to the input video file. output_video_path: The path to save the trimmed video file. start_time: The start time for trimming (HH:MM:SS or seconds). end_time: The end time for trimming (HH:MM:SS or seconds). Returns: A status message indicating success or failure.

Converts audio file format and ALL specified properties like bitrate, sample rate, and channels.

Args: input_audio_path: Path to the source audio file. output_audio_path: Path to save the converted audio file. target_format: Desired output audio format (e.g., 'mp3', 'wav', 'aac'). bitrate: Target audio bitrate (e.g., '128k', '192k'). Optional. sample_rate: Target audio sample rate in Hz (e.g., 44100, 48000). Optional. channels: Number of audio channels (1 for mono, 2 for stereo). Optional. Returns: A status message indicating success or failure.

Converts video file format and ALL specified properties like resolution, codecs, bitrates, and frame rate. Args listed in PRD. Returns: A status message indicating success or failure.

Changes the aspect ratio of a video, using padding or cropping. Args listed in PRD. Returns: A status message indicating success or failure.

Converts an audio file to the specified target format. Args: input_audio_path: Path to the source audio file. output_audio_path: Path to save the converted audio file. target_format: Desired output audio format (e.g., 'mp3', 'wav', 'aac'). Returns: A status message indicating success or failure.

Sets the bitrate for an audio file. Args: input_audio_path: Path to the source audio file. output_audio_path: Path to save the audio file with the new bitrate. bitrate: Target audio bitrate (e.g., '128k', '192k', '320k'). Returns: A status message indicating success or failure.

Sets the sample rate for an audio file. Args: input_audio_path: Path to the source audio file. output_audio_path: Path to save the audio file with the new sample rate. sample_rate: Target audio sample rate in Hz (e.g., 44100, 48000). Returns: A status message indicating success or failure.

Sets the number of channels for an audio file (1 for mono, 2 for stereo). Args: input_audio_path: Path to the source audio file. output_audio_path: Path to save the audio file with the new channel layout. channels: Number of audio channels (1 for mono, 2 for stereo). Returns: A status message indicating success or failure.

Converts a video file to the specified target format, attempting to copy codecs first. Args: input_video_path: Path to the source video file. output_video_path: Path to save the converted video file. target_format: Desired output video format (e.g., 'mp4', 'mov', 'avi'). Returns: A status message indicating success or failure.

Sets the resolution of a video, attempting to copy the audio stream. Args: input_video_path: Path to the source video file. output_video_path: Path to save the video with the new resolution. resolution: Target video resolution (e.g., '1920x1080', '1280x720', or '720' for height). Returns: A status message indicating success or failure.

Sets the video codec of a video, attempting to copy the audio stream. Args: input_video_path: Path to the source video file. output_video_path: Path to save the video with the new video codec. video_codec: Target video codec (e.g., 'libx264', 'libx265', 'vp9'). Returns: A status message indicating success or failure.

Sets the video bitrate of a video, attempting to copy the audio stream. Args: input_video_path: Path to the source video file. output_video_path: Path to save the video with the new video bitrate. video_bitrate: Target video bitrate (e.g., '1M', '2500k'). Returns: A status message indicating success or failure.

Sets the frame rate of a video, attempting to copy the audio stream. Args: input_video_path: Path to the source video file. output_video_path: Path to save the video with the new frame rate. frame_rate: Target video frame rate (e.g., 24, 30, 60). Returns: A status message indicating success or failure.

Sets the audio codec of a video's audio track, attempting to copy the video stream. Args: input_video_path: Path to the source video file. output_video_path: Path to save the video with the new audio codec. audio_codec: Target audio codec (e.g., 'aac', 'mp3'). Returns: A status message indicating success or failure.

Sets the audio bitrate of a video's audio track, attempting to copy the video stream. Args: input_video_path: Path to the source video file. output_video_path: Path to save the video with the new audio bitrate. audio_bitrate: Target audio bitrate (e.g., '128k', '192k'). Returns: A status message indicating success or failure.

Sets the audio sample rate of a video's audio track, attempting to copy the video stream. Args: input_video_path: Path to the source video file. output_video_path: Path to save the video with the new audio sample rate. audio_sample_rate: Target audio sample rate in Hz (e.g., 44100, 48000). Returns: A status message indicating success or failure.

Sets the number of audio channels of a video's audio track, attempting to copy the video stream. Args: input_video_path: Path to the source video file. output_video_path: Path to save the video with the new audio channel layout. audio_channels: Number of audio channels (1 for mono, 2 for stereo). Returns: A status message indicating success or failure.

Burns subtitles from an SRT file onto a video, with optional styling.

Args: video_path: Path to the input video file. srt_file_path: Path to the SRT subtitle file. output_video_path: Path to save the video with subtitles. font_style (dict, optional): A dictionary for subtitle styling. Supported keys and example values: - 'font_name': 'Arial' (str) - 'font_size': 24 (int) - 'font_color': 'white' or '&H00FFFFFF' (str, FFmpeg color syntax) - 'outline_color': 'black' or '&H00000000' (str) - 'outline_width': 2 (int) - 'shadow_color': 'black' (str) - 'shadow_offset_x': 1 (int) - 'shadow_offset_y': 1 (int) - 'alignment': 7 (int, ASS alignment - Numpad layout: 1=bottom-left, 7=top-left etc. Default often 2=bottom-center) - 'margin_v': 10 (int, vertical margin from edge, depends on alignment) - 'margin_l': 10 (int, left margin) - 'margin_r': 10 (int, right margin) Default is None, which uses FFmpeg's default subtitle styling.

Returns: A status message indicating success or failure.

Adds one or more text overlays to a video at specified times and positions.

Args: video_path: Path to the input main video file. output_video_path: Path to save the video with text overlays. text_elements: A list of dictionaries, where each dictionary defines a text overlay. Required keys for each text_element dict: - 'text': str - The text to display. - 'start_time': str or float - Start time (HH:MM:SS, or seconds). - 'end_time': str or float - End time (HH:MM:SS, or seconds). Optional keys for each text_element dict: - 'font_size': int (default: 24) - 'font_color': str (default: 'white') - 'x_pos': str or int (default: 'center') - 'y_pos': str or int (default: 'h-th-10') - 'box': bool (default: False) - 'box_color': str (default: 'black@0.5') - 'box_border_width': int (default: 0) Returns: A status message indicating success or failure.

Adds an image overlay (watermark/logo) to a video.

Args: video_path: Path to the input video file. output_video_path: Path to save the video with the image overlay. image_path: Path to the image file for the overlay. position: Position of the overlay. Options: 'top_left', 'top_right', 'bottom_left', 'bottom_right', 'center'. Or specify custom coordinates like 'x=10:y=10'. opacity: Opacity of the overlay (0.0 to 1.0). If None, image's own alpha is used. start_time: Start time for the overlay (HH:MM:SS or seconds). If None, starts from beginning. end_time: End time for the overlay (HH:MM:SS or seconds). If None, lasts till end. width: Width for the overlay image (e.g., '100', 'iw0.1'). Original if None. height: Height for the overlay image (e.g., '50', 'ih0.1'). Original if None.

Returns: A status message indicating success or failure.

Concatenates multiple video files into a single output file. Supports optional xfade transition when concatenating exactly two videos.

Args: video_paths: A list of paths to the video files to concatenate. output_video_path: The path to save the concatenated video file. transition_effect (str, optional): The xfade transition type. Options: - 'dissolve': Gradual blend between clips - 'fade': Simple fade through black - 'fadeblack': Fade through black - 'fadewhite': Fade through white - 'fadegrays': Fade through grayscale - 'distance': Distance transform transition - 'wipeleft', 'wiperight': Horizontal wipe - 'wipeup', 'wipedown': Vertical wipe - 'slideleft', 'slideright': Horizontal slide - 'slideup', 'slidedown': Vertical slide - 'smoothleft', 'smoothright': Smooth horizontal slide - 'smoothup', 'smoothdown': Smooth vertical slide - 'circlecrop': Rectangle crop transition - 'rectcrop': Rectangle crop transition - 'circleopen', 'circleclose': Circle open/close - 'vertopen', 'vertclose': Vertical open/close - 'horzopen', 'horzclose': Horizontal open/close - 'diagtl', 'diagtr', 'diagbl', 'diagbr': Diagonal transitions - 'hlslice', 'hrslice': Horizontal slice - 'vuslice', 'vdslice': Vertical slice - 'pixelize': Pixelize effect - 'radial': Radial transition - 'hblur': Horizontal blur Only applied if exactly two videos are provided. Defaults to None (no transition). transition_duration (float, optional): The duration of the xfade transition in seconds. Required if transition_effect is specified. Defaults to None.

Returns: A status message indicating success or failure.

Changes the playback speed of a video (and its audio).

Args: video_path: Path to the input video file. output_video_path: Path to save the speed-adjusted video file. speed_factor: The factor by which to change the speed (e.g., 2.0 for 2x speed, 0.5 for half speed). Must be positive.

Returns: A status message indicating success or failure.

Removes silent segments from an audio or video file.

Args: media_path: Path to the input audio or video file. output_media_path: Path to save the media file with silences removed. silence_threshold_db: The noise level (in dBFS) below which is considered silence (e.g., -30.0). min_silence_duration_ms: Minimum duration (in milliseconds) of silence to be removed (e.g., 500).

Returns: A status message indicating success or failure.

Inserts B-roll clips into a main video as overlays. Args listed in previous messages (docstring unchanged for brevity here)

Adds basic fade transitions to the beginning or end of a video.

Args: video_path: Path to the input video file. output_video_path: Path to save the video with the transition. transition_type: Type of transition. Options: 'fade_in', 'fade_out'. (Note: 'crossfade_from_black' is like 'fade_in', 'crossfade_to_black' is like 'fade_out') duration_seconds: Duration of the fade effect in seconds. Returns: A status message indicating success or failure.