mirror of
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
synced 2024-05-20 17:28:49 +00:00
750b29b76c
- Implemented a simple gif encoder based on the rust crate "gif". - Currently supported input pixel formats are RGB and RGBA - The encoder dynamically changes frame delays to approximate the actual input framerate - For the moment, each frame uses its own local colorpalette, leading to good image quality, but big files - Every frame is currently a full frame. No incremental frames for now - The produced GIF is currently compressed (LZW)
76 lines
2.1 KiB
Rust
76 lines
2.1 KiB
Rust
// Copyright (C) 2020 Markus Ebner <info@ebner-markus.de>
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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extern crate glib;
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extern crate gstreamer as gst;
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extern crate gstreamer_check as gst_check;
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extern crate gstreamer_video as gst_video;
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extern crate gstgif;
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fn init() {
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use std::sync::Once;
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static INIT: Once = Once::new();
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INIT.call_once(|| {
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gst::init().unwrap();
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gstgif::plugin_register_static().expect("gif test");
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});
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}
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#[test]
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fn test_encode_rgba() {
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init();
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let video_info = gst_video::VideoInfo::new(gst_video::VideoFormat::Rgba, 160, 120)
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.fps((30, 1))
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.build()
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.unwrap();
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test_encode(&video_info);
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}
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#[test]
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fn test_encode_rgb() {
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init();
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let video_info = gst_video::VideoInfo::new(gst_video::VideoFormat::Rgb, 160, 120)
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.fps((30, 1))
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.build()
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.unwrap();
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test_encode(&video_info);
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}
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fn test_encode(video_info: &gst_video::VideoInfo) {
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let mut h = gst_check::Harness::new("gifenc");
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h.set_src_caps(video_info.to_caps().unwrap());
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for pts in 0..5 {
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let buffer = {
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let mut buffer = gst::Buffer::with_size(video_info.size()).unwrap();
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{
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let buffer = buffer.get_mut().unwrap();
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buffer.set_pts(gst::ClockTime::from_seconds(pts));
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}
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let mut vframe =
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gst_video::VideoFrame::from_buffer_writable(buffer, &video_info).unwrap();
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for v in vframe.plane_data_mut(0).unwrap() {
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*v = 128;
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}
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vframe.into_buffer()
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};
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h.push(buffer.clone()).unwrap();
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}
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h.push_event(gst::Event::new_eos().build());
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for _ in 0..6 {
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// last frame is the GIF trailer
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let buffer = h.pull().unwrap();
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// Currently, every frame should be a full frame
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assert!(!buffer.get_flags().contains(gst::BufferFlags::DELTA_UNIT))
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}
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}
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