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🚸 Show commandline when ffmpeg errors out
author
Gwenn Le Bihan
date
(Nov 9, 2025, 9:51 PM +0100)
commit
43724fd8
43724fd8d9c4e022ed07c8be5fe921f3d124c351
parent
36347a20
36347a204bac0fd90fd288f11e2c58b4727efb64
+51
-47
+51
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src/video/encoders/ffmpeg.rs
+51
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src/video/encoders/ffmpeg.rs
···
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ui::Pretty,
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video::{encoders::Encoder, engine::EngineOutput},
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};
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use anyhow::Result;
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use anyhow::{Result, anyhow};
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use measure_time::debug_time;
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use std::{fs::File, io::Write, path::PathBuf, sync::Arc};
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···
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) -> Result<FFMpegEncoder> {
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debug_time!("setup_encoder");
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let output_path: PathBuf = output_path.into();
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let mut command = std::process::Command::new("ffmpeg");
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command
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// Audio //
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// Take non-0 starting point into account
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.args(["-ss", &self.start_rendering_at.seconds_string()])
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// File
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.args(["-i", self.audiofile.to_str().unwrap()])
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//
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// Video //
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// Raw video input
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.args(["-f", "rawvideo"])
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// RGBA Pixels
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.args(["-pixel_format", "rgba"])
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// Dimensions
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.args(["-video_size", &format!("{width}x{height}")])
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// FPS
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.args(["-framerate", &self.fps.to_string()])
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// Input from pipe
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.args(["-i", "-"])
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.stdin(std::process::Stdio::piped())
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//
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// Mapping //
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// Audio from first input
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.args(["-map", "0:a"])
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// Video from second input
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.args(["-map", "1:v"])
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// Use shortest stream for final duration
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.arg("-shortest")
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//
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// Output //
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// Write to file
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.arg(output_path.to_str().unwrap())
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// Debug ffmpeg too if shapemaker is debugging
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.args([
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"-loglevel",
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(if log::log_enabled!(log::Level::Debug) {
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"debug"
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} else {
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"error"
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}),
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])
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// Put stdout/stderr here so that it doesn't mess with progress bars
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.stdout(File::create("ffmpeg_stdout.log")?)
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.stderr(File::create("ffmpeg_stderr.log")?);
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let commandline = format!("{:?}", &command);
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Ok(FFMpegEncoder {
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destination: output_path.clone(),
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fontdb: self.initial_canvas.fontdb.clone(),
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pixmap: create_pixmap(width, height),
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process: std::process::Command::new("ffmpeg")
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// Audio //
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// Take non-0 starting point into account
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.args(["-ss", &self.start_rendering_at.seconds_string()])
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// File
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.args(["-i", self.audiofile.to_str().unwrap()])
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//
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// Video //
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// Raw video input
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.args(["-f", "rawvideo"])
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// RGBA Pixels
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.args(["-pixel_format", "rgba"])
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// Dimensions
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.args(["-video_size", &format!("{width}x{height}")])
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// FPS
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.args(["-framerate", &self.fps.to_string()])
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// Input from pipe
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.args(["-i", "-"])
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.stdin(std::process::Stdio::piped())
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//
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// Mapping //
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// Audio from first input
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.args(["-map", "0:a"])
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// Video from second input
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.args(["-map", "1:v"])
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// Use shortest stream for final duration
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.arg("-shortest")
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//
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// Output //
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// Write to file
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.arg(output_path.to_str().unwrap())
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// Debug ffmpeg too if shapemaker is debugging
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.args([
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"-loglevel",
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(if log::log_enabled!(log::Level::Debug) {
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"debug"
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} else {
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"error"
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}),
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])
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// Put stdout/stderr here so that it doesn't mess with progress bars
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.stdout(File::create("ffmpeg_stdout.log")?)
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.stderr(File::create("ffmpeg_stderr.log")?)
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//
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// Spawn it!
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.spawn()?,
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process: command
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.spawn()
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.map_err(|e| anyhow!("Could not run {commandline}: {e:?}",))?,
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})
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}
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}