Enum RenderSource 

pub enum RenderSource {
    Image(DecodedImageData),
    Wav(WavData),
    TestPattern,
    Unsupported {
        path: PathBuf,
    },
}

A resolved and decoded media source used by the render pipeline.

Cheaply cloneable via Arc.

Variants

Image(DecodedImageData)

A decoded still image (PNG or JPEG) in RGBA8.

Wav(WavData)

Decoded WAV audio.

TestPattern

Deterministic test pattern (SMPTE colour bars / 1 kHz sine).

Unsupported

Source file exists but its format is not supported.

Fields

path: PathBuf

Path to the unsupported file.

Implementations

impl RenderSource

pub fn from_path(path: &Path) -> EditResult<Arc<Self>>

Resolve a file-system path to a RenderSource.

Recognised extensions (case-insensitive): .png, .jpg/.jpeg, .wav. Everything else becomes RenderSource::Unsupported.

Returns an Arc so callers can share the decoded data cheaply.

pub fn sample_video(&self, _source_pts: i64, width: u32, height: u32) -> Vec<u8>

Produce an RGBA8 video frame of size width × height at source_pts.

• For RenderSource::Image the image is scaled (nearest-neighbour) to fill the requested dimensions.
• For RenderSource::TestPattern a deterministic SMPTE colour bar pattern is generated.
• All other variants return a black frame.

The returned buffer is width * height * 4 bytes.

pub fn sample_audio( &self, source_pts: i64, num_samples: usize, channels: u16, sample_rate: u32, ) -> Vec<f32>

Produce interleaved f32 audio samples for num_samples stereo frames starting at source_pts.

• For RenderSource::Wav the decoded samples are sliced/zero-padded at the requested offset. Channel count mismatches are handled by up-mixing mono→stereo or truncating to the requested channel count.
• For RenderSource::TestPattern a 1 kHz sine wave is generated.
• All other variants return silence.

num_samples is per-channel frame count. The returned buffer has num_samples * channels elements.

Trait Implementations

impl Debug for RenderSource

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.