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use glib::translate::{from_glib_full, ToGlibPtr};
use glib::ToSendValue;
use std::i32;
pub fn audio_buffer_clip(
buffer: gst::Buffer,
segment: &gst::Segment,
rate: u32,
bpf: u32,
) -> Option<gst::Buffer> {
skip_assert_initialized!();
unsafe {
from_glib_full(ffi::gst_audio_buffer_clip(
buffer.into_ptr(),
segment.to_glib_none().0,
rate as i32,
bpf as i32,
))
}
}
#[cfg(any(feature = "v1_16", feature = "dox"))]
#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
pub fn audio_buffer_truncate(
buffer: gst::Buffer,
bpf: u32,
trim: usize,
samples: Option<usize>,
) -> gst::Buffer {
skip_assert_initialized!();
unsafe {
from_glib_full(ffi::gst_audio_buffer_truncate(
buffer.into_ptr(),
bpf as i32,
trim,
samples.unwrap_or(std::usize::MAX),
))
}
}
pub fn audio_make_raw_caps(
formats: &[crate::AudioFormat],
layout: crate::AudioLayout,
) -> gst::caps::Builder<gst::caps::NoFeature> {
assert_initialized_main_thread!();
let formats: Vec<glib::SendValue> = formats
.iter()
.map(|f| match f {
crate::AudioFormat::Encoded => panic!("Invalid encoded format"),
crate::AudioFormat::Unknown => panic!("Invalid unknown format"),
_ => f.to_string().to_send_value(),
})
.collect();
let builder = gst::caps::Caps::builder("audio/x-raw")
.field("format", &gst::List::from_owned(formats))
.field("rate", &gst::IntRange::<i32>::new(1, i32::MAX))
.field("channels", &gst::IntRange::<i32>::new(1, i32::MAX));
match layout {
crate::AudioLayout::Interleaved => builder.field("layout", &"interleaved"),
crate::AudioLayout::NonInterleaved => builder.field("layout", &"non-interleaved"),
crate::AudioLayout::__Unknown(_) => builder,
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn audio_caps() {
gst::init().unwrap();
let caps = audio_make_raw_caps(
&[crate::AudioFormat::S16be, crate::AudioFormat::S16le],
crate::AudioLayout::Interleaved,
)
.build();
assert_eq!(caps.to_string(), "audio/x-raw, format=(string){ S16BE, S16LE }, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], layout=(string)interleaved");
#[cfg(feature = "v1_18")]
{
use glib::translate::{from_glib_full, IntoGlib};
let c_caps = unsafe {
let formats: Vec<ffi::GstAudioFormat> =
[crate::AudioFormat::S16be, crate::AudioFormat::S16le]
.iter()
.map(|f| f.into_glib())
.collect();
let caps = ffi::gst_audio_make_raw_caps(
formats.as_ptr(),
formats.len() as u32,
ffi::GST_AUDIO_LAYOUT_INTERLEAVED,
);
from_glib_full(caps)
};
assert_eq!(caps, c_caps);
}
let caps = audio_make_raw_caps(
&[crate::AudioFormat::S16be, crate::AudioFormat::S16le],
crate::AudioLayout::NonInterleaved,
)
.field("rate", &16000)
.field("channels", &2)
.build();
assert_eq!(
caps.to_string(),
"audio/x-raw, format=(string){ S16BE, S16LE }, rate=(int)16000, channels=(int)2, layout=(string)non-interleaved"
);
}
#[test]
#[should_panic(expected = "Invalid encoded format")]
fn audio_caps_encoded() {
gst::init().unwrap();
audio_make_raw_caps(
&[crate::AudioFormat::Encoded],
crate::AudioLayout::Interleaved,
);
}
#[test]
#[should_panic(expected = "Invalid unknown format")]
fn audio_caps_unknown() {
gst::init().unwrap();
audio_make_raw_caps(
&[crate::AudioFormat::Unknown],
crate::AudioLayout::Interleaved,
);
}
}