From 1b6a04ca5504955c571d1c97504fb45ea0befee4 Mon Sep 17 00:00:00 2001 From: Valentin Popov Date: Mon, 8 Jan 2024 01:21:28 +0400 Subject: Initial vendor packages Signed-off-by: Valentin Popov --- vendor/gif/examples/explode.rs | 44 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 vendor/gif/examples/explode.rs (limited to 'vendor/gif/examples/explode.rs') diff --git a/vendor/gif/examples/explode.rs b/vendor/gif/examples/explode.rs new file mode 100644 index 0000000..caa3c34 --- /dev/null +++ b/vendor/gif/examples/explode.rs @@ -0,0 +1,44 @@ +//! Exports each GIF frame as a separate image. + +use std::env; +use std::fs::File; +use std::path::PathBuf; + +fn main() -> Result<(), Box> { + let input_path = PathBuf::from( + env::args_os() + .nth(1) + .ok_or("Specify a GIF path as the first argument")?, + ); + + let input = File::open(&input_path)?; + let mut options = gif::DecodeOptions::new(); + options.set_color_output(gif::ColorOutput::Indexed); + let mut decoder = options.read_info(input)?; + let screen_width = decoder.width(); + let screen_height = decoder.height(); + let global_pal = decoder.global_palette().unwrap_or_default().to_vec(); + + let output_file_stem = input_path.file_stem().unwrap().to_str().unwrap(); + let mut frame_number = 1; + while let Some(frame) = decoder.read_next_frame()? { + let output_path = format!("{}.{:03}.gif", output_file_stem, frame_number); + let mut output = File::create(&output_path)?; + let mut encoder = gif::Encoder::new(&mut output, screen_width, screen_height, &global_pal)?; + encoder.write_frame(&frame)?; + frame_number += 1; + + use gif::DisposalMethod::*; + let disposal = match frame.dispose { + Any => "any", + Keep => "keep", + Background => "background", + Previous => "previous", + }; + eprintln!( + "Written {} ({}x{}@{}x{} delay={} {})", + output_path, frame.width, frame.height, frame.top, frame.left, frame.delay, disposal + ); + } + Ok(()) +} -- cgit v1.2.3