Struct RenderConfig 

pub struct RenderConfig {
    pub width: u32,
    pub height: u32,
    pub fps: u32,
    pub output_path: String,
    pub audio_tracks: Vec<AudioTrack>,
    pub video_codec: Option<String>,
    pub audio_codec: Option<String>,
    pub preset: Option<String>,
    pub crf: Option<u32>,
    pub pix_fmt: Option<String>,
    pub subtitle_style: Option<String>,
    pub extra_output_args: Vec<String>,
}

Configuration for video rendering.

Fields

width: u32

Output width in pixels. Default: 1920.

height: u32

Output height in pixels. Default: 1080.

fps: u32

Frames per second. Default: 30.

output_path: String

Output file path. Default: "output.mp4".

audio_tracks: Vec<AudioTrack>

Background audio tracks to mix with the narration.

video_codec: Option<String>

Video codec (-c:v). Default: "libx264".

audio_codec: Option<String>

Audio codec (-c:a). Default: "aac".

preset: Option<String>

Encoder preset (-preset). Default: "fast".

crf: Option<u32>

Constant Rate Factor (-crf) for quality control. Lower = better quality. When None, ffmpeg uses its own default (typically 23 for libx264).

pix_fmt: Option<String>

Pixel format (-pix_fmt), e.g. "yuv420p" for broad player compatibility.

subtitle_style: Option<String>

ASS/SSA subtitle force_style string. Default: "FontSize=24,PrimaryColour=&HFFFFFF&".

extra_output_args: Vec<String>

Extra ffmpeg arguments inserted before the output path. Use this as a catch-all for flags not covered above.

Implementations

impl RenderConfig

pub fn video_codec(self, codec: impl Into<String>) -> Self

Set the video codec (-c:v), e.g. "libx265", "h264_nvenc".

pub fn audio_codec(self, codec: impl Into<String>) -> Self

Set the audio codec (-c:a), e.g. "libopus", "libmp3lame".

pub fn preset(self, preset: impl Into<String>) -> Self

Set the encoder preset (-preset), e.g. "ultrafast", "slow".

pub fn crf(self, crf: u32) -> Self

Set the Constant Rate Factor (-crf) for quality control.

pub fn pix_fmt(self, fmt: impl Into<String>) -> Self

Set the pixel format (-pix_fmt), e.g. "yuv420p".

pub fn subtitle_style(self, style: impl Into<String>) -> Self

Set a custom subtitle style (ASS force_style string).

pub fn extra_output_args( self, args: impl IntoIterator<Item = impl Into<String>>, ) -> Self

Add extra ffmpeg arguments before the output path.

Trait Implementations

impl Clone for RenderConfig

fn clone(&self) -> RenderConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for RenderConfig

fn default() -> Self

Returns the “default value” for a type.