Function run_vmaf_evaluation 

pub fn run_vmaf_evaluation(
    source_path: &Path,
    encoded_path: &Path,
    window_start: f64,
    window_duration: f64,
    encode_fps: u32,
    output_height: u32,
    n_subsample: u32,
    temp_dir: &Path,
    hw_config: Option<&HwEncodingConfig>,
) -> Result<f32>

Run VMAF evaluation and return the score

This is a convenience function that:

1. Builds the VMAF command
2. Executes it
3. Parses the result
4. Cleans up the log file

Arguments

• source_path - Original source video
• encoded_path - Encoded test window
• window_start - Start time in seconds
• window_duration - Duration in seconds
• output_height - Output height for model selection
• n_subsample - Frame subsampling rate
• temp_dir - Directory for temporary VMAF log

Returns

The pooled mean VMAF score as f32