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use crate::AudioChannelPosition;
use std::mem;
use glib::translate::{from_glib, IntoGlib};
impl AudioChannelPosition {
pub fn to_mask(self) -> u64 {
let pos = self.into_glib();
if pos < 0 {
return 0;
}
1 << (pos as u32)
}
pub fn positions_to_mask(
positions: &[Self],
force_order: bool,
) -> Result<u64, glib::error::BoolError> {
assert_initialized_main_thread!();
let len = positions.len();
if len > 64 {
return Err(glib::bool_error!("Invalid number of channels"));
}
let positions_raw: [ffi::GstAudioChannelPosition; 64] = array_init::array_init(|i| {
if i >= len as usize {
ffi::GST_AUDIO_CHANNEL_POSITION_INVALID
} else {
positions[i].into_glib()
}
});
unsafe {
let mut mask = mem::MaybeUninit::uninit();
let valid: bool = from_glib(ffi::gst_audio_channel_positions_to_mask(
positions_raw.as_ptr() as *mut _,
len as i32,
force_order.into_glib(),
mask.as_mut_ptr(),
));
if valid {
Ok(mask.assume_init())
} else {
Err(glib::bool_error!(
"Couldn't convert channel positions to mask"
))
}
}
}
pub fn positions_from_mask(mask: u64, positions: &mut [Self]) -> Result<(), glib::BoolError> {
assert_initialized_main_thread!();
if positions.len() > 64 {
return Err(glib::bool_error!("Invalid number of channels"));
}
let len = positions.len();
let mut positions_raw: [ffi::GstAudioChannelPosition; 64] =
[ffi::GST_AUDIO_CHANNEL_POSITION_INVALID; 64];
let valid: bool = unsafe {
from_glib(ffi::gst_audio_channel_positions_from_mask(
len as i32,
mask,
positions_raw.as_mut_ptr(),
))
};
if valid {
for (d, s) in positions.iter_mut().zip(positions_raw.iter()) {
*d = unsafe { from_glib(*s) };
}
Ok(())
} else {
Err(glib::bool_error!(
"Couldn't convert channel positions to mask",
))
}
}
pub fn positions_to_valid_order(positions: &mut [Self]) -> Result<(), glib::BoolError> {
assert_initialized_main_thread!();
if positions.len() > 64 {
return Err(glib::bool_error!("Invalid number of channels"));
}
let len = positions.len();
let mut positions_raw: [ffi::GstAudioChannelPosition; 64] = array_init::array_init(|i| {
if i >= len as usize {
ffi::GST_AUDIO_CHANNEL_POSITION_INVALID
} else {
positions[i].into_glib()
}
});
let valid: bool = unsafe {
from_glib(ffi::gst_audio_channel_positions_to_valid_order(
positions_raw.as_mut_ptr(),
len as i32,
))
};
if valid {
for (d, s) in positions.iter_mut().zip(positions_raw.iter()) {
*d = unsafe { from_glib(*s) };
}
Ok(())
} else {
Err(glib::bool_error!(
"Couldn't convert channel positions to mask",
))
}
}
#[doc(alias = "get_fallback_mask")]
pub fn fallback_mask(channels: u32) -> u64 {
assert_initialized_main_thread!();
unsafe { ffi::gst_audio_channel_get_fallback_mask(channels as i32) }
}
pub fn check_valid_channel_positions(positions: &[Self], force_order: bool) -> bool {
assert_initialized_main_thread!();
if positions.len() > 64 {
return false;
}
let len = positions.len();
let positions_raw: [ffi::GstAudioChannelPosition; 64] = array_init::array_init(|i| {
if i >= len as usize {
ffi::GST_AUDIO_CHANNEL_POSITION_INVALID
} else {
positions[i].into_glib()
}
});
unsafe {
from_glib(ffi::gst_audio_check_valid_channel_positions(
positions_raw.as_ptr() as *mut _,
len as i32,
force_order.into_glib(),
))
}
}
}
pub fn buffer_reorder_channels(
buffer: &mut gst::BufferRef,
format: crate::AudioFormat,
channels: u32,
from: &[AudioChannelPosition],
to: &[AudioChannelPosition],
) -> Result<(), glib::BoolError> {
assert_initialized_main_thread!();
if from.len() != to.len() || from.len() > 64 {
return Err(glib::bool_error!("Invalid number of channels"));
}
let from_len = from.len();
let to_len = to.len();
let from_raw: [ffi::GstAudioChannelPosition; 64] = array_init::array_init(|i| {
if i >= from_len as usize {
ffi::GST_AUDIO_CHANNEL_POSITION_INVALID
} else {
from[i].into_glib()
}
});
let to_raw: [ffi::GstAudioChannelPosition; 64] = array_init::array_init(|i| {
if i >= to_len as usize {
ffi::GST_AUDIO_CHANNEL_POSITION_INVALID
} else {
to[i].into_glib()
}
});
let valid: bool = unsafe {
from_glib(ffi::gst_audio_buffer_reorder_channels(
buffer.as_mut_ptr(),
format.into_glib(),
channels as i32,
from_raw.as_ptr() as *mut _,
to_raw.as_ptr() as *mut _,
))
};
if valid {
Ok(())
} else {
Err(glib::bool_error!("Failed to reorder channels"))
}
}
pub fn reorder_channels(
data: &mut [u8],
format: crate::AudioFormat,
channels: u32,
from: &[AudioChannelPosition],
to: &[AudioChannelPosition],
) -> Result<(), glib::BoolError> {
assert_initialized_main_thread!();
if from.len() != to.len() || from.len() > 64 {
return Err(glib::bool_error!("Invalid number of channels"));
}
let from_len = from.len();
let to_len = to.len();
let from_raw: [ffi::GstAudioChannelPosition; 64] = array_init::array_init(|i| {
if i >= from_len as usize {
ffi::GST_AUDIO_CHANNEL_POSITION_INVALID
} else {
from[i].into_glib()
}
});
let to_raw: [ffi::GstAudioChannelPosition; 64] = array_init::array_init(|i| {
if i >= to_len as usize {
ffi::GST_AUDIO_CHANNEL_POSITION_INVALID
} else {
to[i].into_glib()
}
});
let valid: bool = unsafe {
from_glib(ffi::gst_audio_reorder_channels(
data.as_mut_ptr() as *mut _,
data.len(),
format.into_glib(),
channels as i32,
from_raw.as_ptr() as *mut _,
to_raw.as_ptr() as *mut _,
))
};
if valid {
Ok(())
} else {
Err(glib::bool_error!("Failed to reorder channels"))
}
}
#[doc(alias = "get_channel_reorder_map")]
pub fn channel_reorder_map(
from: &[AudioChannelPosition],
to: &[AudioChannelPosition],
reorder_map: &mut [usize],
) -> Result<(), glib::BoolError> {
assert_initialized_main_thread!();
if from.len() != to.len() || from.len() != reorder_map.len() || from.len() > 64 {
return Err(glib::bool_error!("Invalid number of channels"));
}
let from_len = from.len();
let to_len = to.len();
let from_raw: [ffi::GstAudioChannelPosition; 64] = array_init::array_init(|i| {
if i >= from_len as usize {
ffi::GST_AUDIO_CHANNEL_POSITION_INVALID
} else {
from[i].into_glib()
}
});
let to_raw: [ffi::GstAudioChannelPosition; 64] = array_init::array_init(|i| {
if i >= to_len as usize {
ffi::GST_AUDIO_CHANNEL_POSITION_INVALID
} else {
to[i].into_glib()
}
});
let mut reorder_map_raw = [0i32, 64];
let valid: bool = unsafe {
from_glib(ffi::gst_audio_get_channel_reorder_map(
from_len as i32,
from_raw.as_ptr() as *mut _,
to_raw.as_ptr() as *mut _,
reorder_map_raw.as_mut_ptr(),
))
};
if valid {
for (d, s) in reorder_map.iter_mut().zip(reorder_map_raw.iter()) {
*d = *s as usize;
}
Ok(())
} else {
Err(glib::bool_error!("Failed to reorder channels"))
}
}