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gifenc: Add property to configure speed

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Fixes #157.
This commit is contained in:
SeaDve 2021-07-05 16:46:55 +08:00 committed by Sebastian Dröge
parent 36b346e733
commit 82df25694a
1 changed files with 45 additions and 25 deletions
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70
video/gif/src/gifenc/imp.rs
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@ -20,6 +20,7 @@ use std::{
}; };
const DEFAULT_REPEAT: i32 = 0; const DEFAULT_REPEAT: i32 = 0;
const DEFAULT_SPEED: i32 = 10;
/// The gif::Encoder requires a std::io::Write implementation, to which it /// The gif::Encoder requires a std::io::Write implementation, to which it
/// can save the generated gif. This struct is used as a temporary cache, into /// can save the generated gif. This struct is used as a temporary cache, into
@ -70,12 +71,14 @@ impl Write for CacheBufferWriter {
#[derive(Debug, Clone, Copy)] #[derive(Debug, Clone, Copy)]
struct Settings { struct Settings {
repeat: i32, repeat: i32,
speed: i32,
} }
impl Default for Settings { impl Default for Settings {
fn default() -> Self { fn default() -> Self {
Settings { Settings {
repeat: DEFAULT_REPEAT, repeat: DEFAULT_REPEAT,
speed: DEFAULT_SPEED,
} }
} }
} }
@ -140,15 +143,26 @@ impl ObjectSubclass for GifEnc {
impl ObjectImpl for GifEnc { impl ObjectImpl for GifEnc {
fn properties() -> &'static [glib::ParamSpec] { fn properties() -> &'static [glib::ParamSpec] {
static PROPERTIES: Lazy<Vec<glib::ParamSpec>> = Lazy::new(|| { static PROPERTIES: Lazy<Vec<glib::ParamSpec>> = Lazy::new(|| {
vec![glib::ParamSpec::new_int( vec![
"repeat", glib::ParamSpec::new_int(
"Repeat", "repeat",
"Repeat (-1 to loop forever, 0 .. n finite repetitions)", "Repeat",
-1, "Repeat (-1 to loop forever, 0 .. n finite repetitions)",
std::u16::MAX as i32, -1,
DEFAULT_REPEAT, std::u16::MAX as i32,
glib::ParamFlags::READWRITE | gst::PARAM_FLAG_MUTABLE_READY, DEFAULT_REPEAT,
)] glib::ParamFlags::READWRITE | gst::PARAM_FLAG_MUTABLE_READY,
),
glib::ParamSpec::new_int(
"speed",
"Speed",
"Speed (1 .. 30; higher value yields faster encoding)",
1,
30,
DEFAULT_SPEED,
glib::ParamFlags::READWRITE | gst::PARAM_FLAG_MUTABLE_READY,
),
]
}); });
PROPERTIES.as_ref() PROPERTIES.as_ref()
@ -166,6 +180,10 @@ impl ObjectImpl for GifEnc {
let mut settings = self.settings.lock().unwrap(); let mut settings = self.settings.lock().unwrap();
settings.repeat = value.get().expect("type checked upstream"); settings.repeat = value.get().expect("type checked upstream");
} }
"speed" => {
let mut settings = self.settings.lock().unwrap();
settings.speed = value.get().expect("type checked upstream");
}
_ => unimplemented!(), _ => unimplemented!(),
} }
} }
@ -176,6 +194,10 @@ impl ObjectImpl for GifEnc {
let settings = self.settings.lock().unwrap(); let settings = self.settings.lock().unwrap();
settings.repeat.to_value() settings.repeat.to_value()
} }
"speed" => {
let settings = self.settings.lock().unwrap();
settings.speed.to_value()
}
_ => unimplemented!(), _ => unimplemented!(),
} }
} }
@ -346,24 +368,22 @@ impl VideoEncoderImpl for GifEnc {
gst::FlowError::Error gst::FlowError::Error
})?; })?;
let settings = self.settings.lock().unwrap();
let mut raw_frame = tightly_packed_framebuffer(&in_frame); let mut raw_frame = tightly_packed_framebuffer(&in_frame);
let mut gif_frame = match in_frame.info().format() { let mut gif_frame = match in_frame.info().format() {
gst_video::VideoFormat::Rgb => { gst_video::VideoFormat::Rgb => gif::Frame::from_rgb_speed(
gif::Frame::from_rgb_speed( frame_width as u16,
frame_width as u16, frame_height as u16,
frame_height as u16, &raw_frame,
&raw_frame, settings.speed,
10, // TODO: Export option for this quality/speed tradeoff ),
) gst_video::VideoFormat::Rgba => gif::Frame::from_rgba_speed(
} frame_width as u16,
gst_video::VideoFormat::Rgba => { frame_height as u16,
gif::Frame::from_rgba_speed( &mut raw_frame,
frame_width as u16, settings.speed,
frame_height as u16, ),
&mut raw_frame,
10, //TODO: Export option for this quality/speed tradeoff
)
}
_ => unreachable!(), _ => unreachable!(),
}; };