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use super::*; use log::Level; pub enum FFmpegDefaultArgs { None, Quiet, General, } pub struct FFmpegArgs { default_args: Option<FFmpegDefaultArgs>, filters: Vec<VideoFilter>, log_level: Level, params: Vec<String>, } impl FFmpegArgs { pub fn new(log_level: Level) -> Self { FFmpegArgs { default_args: Some(FFmpegDefaultArgs::General), log_level, filters: Vec::new(), params: Vec::new(), } } fn append_params<T>(mut self, param: T) -> Self where T: ToString, { self.params.push(param.to_string()); self } pub fn default_args(mut self, default_args: Option<FFmpegDefaultArgs>) -> Self { self.default_args = default_args; self } pub fn attach<T>(self, format: T) -> Self where T: ToString, { self.append_params("-attach").append_params(format) } pub fn c<F, P>(self, format: F, prefix: P) -> Self where F: ToString, P: ToString, { let prefix = prefix.to_string(); if !prefix.is_empty() { self.append_params(format!("-c:{}", prefix)) } else { self.append_params("-c") } .append_params(format) } pub fn dump_attachment<P, O>(self, prefix: P, output: O) -> Self where P: ToString, O: ToString, { self.append_params(format!("-dump_attachment:{}", prefix.to_string())) .append_params(output) } pub fn f<T>(self, format: T) -> Self where T: ToString, { self.append_params("-f").append_params(format) } pub fn fflags<T>(self, param: T) -> Self where T: ToString, { self.append_params("-fflags").append_params(param) } pub fn flags<P1, P2>(self, prefix: P1, param: P2) -> Self where P1: ToString, P2: ToString, { self.append_params(format!("-flags:{}", prefix.to_string())) .append_params(param) } pub fn framerate<T>(self, fps: T) -> Self where T: ToString, { self.append_params("-framerate").append_params(fps) } pub fn i<T>(self, input: T) -> Self where T: ToString, { self.append_params("-i").append_params(input) } pub fn map<T>(self, map: T) -> Self where T: ToString, { self.append_params("-map").append_params(map) } pub fn map_metadata<T>(self, map_metadata: T) -> Self where T: ToString, { self.append_params("-map_metadata") .append_params(map_metadata) } pub fn metadata<P1, P2>(self, prefix: Option<P1>, param: P2) -> Self where P1: ToString, P2: ToString, { self.append_params(if let Some(prefix) = prefix { format!("-metadata:{}", prefix.to_string()) } else { "-metadata".to_string() }) .append_params(param) } pub fn profile<T>(self, profile: T) -> Self where T: ToString, { self.append_params("-profile").append_params(profile) } pub fn q<T>(self, q: T) -> Self where T: ToString, { self.append_params("-q").append_params(q) } pub fn raw<T>(self, raw_param: T) -> Self where T: ToString, { self.append_params(raw_param) } pub fn vcodec<T>(self, vcodec: T) -> Self where T: ToString, { self.append_params("-vcodec").append_params(vcodec) } pub fn vsync<T>(self, param: T) -> Self where T: ToString, { self.append_params("-vsync").append_params(param) } pub fn preset(self, preset: VideoPreset) -> Self { self.append_params("-preset").append_params(preset) } pub fn vf(mut self, vf: VideoFilter) -> Self { self.filters.push(vf); self } fn clear_filter(mut self) -> Self { self.filters.clear(); self } pub fn build_filter(self) -> Self { if !self.filters.is_empty() { let filters = &self.filters.clone(); match self.filters.len() { 1 => if self.filters[0].get_inputs().len() > 1 || self.filters[0].get_outputs().len() > 1 { self.append_params("-filter_complex") } else { self.append_params("-vf") } .append_params(filters[0].clone()), _ => self.append_params("-filter_complex").append_params( filters .iter() .map(ToString::to_string) .collect::<Vec<_>>() .join(";"), ), } .clear_filter() } else { self } } pub fn build(self) -> Vec<String> { let mut args = vec!["-hide_banner", "-y"]; args.append(&mut match self.default_args { Some(FFmpegDefaultArgs::None) => vec!["-loglevel", "quiet"], Some(FFmpegDefaultArgs::Quiet) => vec![ "-loglevel", if self.log_level > Level::Info { "warning" } else { "error" }, ], Some(FFmpegDefaultArgs::General) => vec![ "-loglevel", if self.log_level > Level::Info { "warning" } else { "error" }, "-stats", ], None => vec![], }); args.append(&mut self.params.iter().map(AsRef::as_ref).collect()); args.iter().map(ToString::to_string).collect::<Vec<_>>() } }