gstreamer-rs/gstreamer-video/src/video_converter.rs
Sebastian Dröge f0e12bbf24 video/videoconverter: Add TryFrom<Structure> and inverse From impl for VideoConverterConfig
Allows converting between both types interchangebly.
2020-05-26 19:26:35 +03:00

430 lines
12 KiB
Rust

// Copyright (C) 2020 Sebastian Dröge <sebastian@centricular.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use gst_video_sys;
use glib;
use glib::translate::ToGlibPtr;
use gst;
use std::convert;
use std::ops;
use std::ptr;
#[derive(Debug)]
pub struct VideoConverter(ptr::NonNull<gst_video_sys::GstVideoConverter>);
impl Drop for VideoConverter {
fn drop(&mut self) {
unsafe {
gst_video_sys::gst_video_converter_free(self.0.as_ptr());
}
}
}
unsafe impl Send for VideoConverter {}
unsafe impl Sync for VideoConverter {}
impl VideoConverter {
pub fn new(
in_info: &::VideoInfo,
out_info: &::VideoInfo,
config: Option<VideoConverterConfig>,
) -> Result<Self, glib::BoolError> {
assert_initialized_main_thread!();
if in_info.fps() != out_info.fps() {
return Err(glib_bool_error!("Can't do framerate conversion"));
}
if in_info.interlace_mode() != out_info.interlace_mode() {
return Err(glib_bool_error!("Can't do interlacing conversion"));
}
unsafe {
let ptr = gst_video_sys::gst_video_converter_new(
in_info.to_glib_none().0 as *mut _,
out_info.to_glib_none().0 as *mut _,
config.map(|s| s.0.into_ptr()).unwrap_or(ptr::null_mut()),
);
if ptr.is_null() {
Err(glib_bool_error!("Failed to create video converter"))
} else {
Ok(VideoConverter(ptr::NonNull::new_unchecked(ptr)))
}
}
}
pub fn get_config(&self) -> VideoConverterConfig {
unsafe {
VideoConverterConfig(
gst::StructureRef::from_glib_borrow(gst_video_sys::gst_video_converter_get_config(
self.0.as_ptr(),
))
.to_owned(),
)
}
}
pub fn set_config(&mut self, config: VideoConverterConfig) {
unsafe {
gst_video_sys::gst_video_converter_set_config(self.0.as_ptr(), config.0.into_ptr());
}
}
pub fn frame<T>(
&self,
src: &::VideoFrame<T>,
dest: &mut ::VideoFrame<::video_frame::Writable>,
) {
unsafe {
gst_video_sys::gst_video_converter_frame(
self.0.as_ptr(),
src.as_ptr(),
dest.as_mut_ptr(),
);
}
}
pub fn frame_ref<T>(
&self,
src: &::VideoFrameRef<T>,
dest: &mut ::VideoFrameRef<&mut gst::BufferRef>,
) {
unsafe {
gst_video_sys::gst_video_converter_frame(
self.0.as_ptr(),
src.as_ptr(),
dest.as_mut_ptr(),
);
}
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct VideoConverterConfig(gst::Structure);
impl ops::Deref for VideoConverterConfig {
type Target = gst::StructureRef;
fn deref(&self) -> &gst::StructureRef {
self.0.deref()
}
}
impl ops::DerefMut for VideoConverterConfig {
fn deref_mut(&mut self) -> &mut gst::StructureRef {
self.0.deref_mut()
}
}
impl AsRef<gst::StructureRef> for VideoConverterConfig {
fn as_ref(&self) -> &gst::StructureRef {
self.0.as_ref()
}
}
impl AsMut<gst::StructureRef> for VideoConverterConfig {
fn as_mut(&mut self) -> &mut gst::StructureRef {
self.0.as_mut()
}
}
impl Default for VideoConverterConfig {
fn default() -> Self {
VideoConverterConfig::new()
}
}
impl convert::TryFrom<gst::Structure> for VideoConverterConfig {
type Error = glib::BoolError;
fn try_from(v: gst::Structure) -> Result<VideoConverterConfig, Self::Error> {
skip_assert_initialized!();
if v.get_name() == "GstVideoConverter" {
Ok(VideoConverterConfig(v))
} else {
Err(glib_bool_error!("Structure is no VideoConverterConfig"))
}
}
}
impl<'a> convert::TryFrom<&'a gst::StructureRef> for VideoConverterConfig {
type Error = glib::BoolError;
fn try_from(v: &'a gst::StructureRef) -> Result<VideoConverterConfig, Self::Error> {
skip_assert_initialized!();
VideoConverterConfig::try_from(v.to_owned())
}
}
impl From<VideoConverterConfig> for gst::Structure {
fn from(v: VideoConverterConfig) -> gst::Structure {
skip_assert_initialized!();
v.0
}
}
impl VideoConverterConfig {
pub fn new() -> Self {
VideoConverterConfig(gst::Structure::new_empty("GstVideoConverter"))
}
pub fn set_resampler_method(&mut self, v: ::VideoResamplerMethod) {
self.0.set("GstVideoConverter.resampler-method", &v);
}
pub fn get_resampler_method(&self) -> ::VideoResamplerMethod {
self.0
.get_optional("GstVideoConverter.resampler-method")
.expect("Wrong type")
.unwrap_or(::VideoResamplerMethod::Cubic)
}
pub fn set_chroma_resampler_method(&mut self, v: ::VideoResamplerMethod) {
self.0.set("GstVideoConverter.chroma-resampler-method", &v);
}
pub fn get_chroma_resampler_method(&self) -> ::VideoResamplerMethod {
self.0
.get_optional("GstVideoConverter.chroma-resampler-method")
.expect("Wrong type")
.unwrap_or(::VideoResamplerMethod::Linear)
}
pub fn set_resampler_taps(&mut self, v: u32) {
self.0.set("GstVideoConverter.resampler-taps", &v);
}
pub fn get_resampler_taps(&self) -> u32 {
self.0
.get_optional("GstVideoConverter.resampler-taps")
.expect("Wrong type")
.unwrap_or(0)
}
pub fn set_dither_method(&mut self, v: ::VideoDitherMethod) {
self.0.set("GstVideoConverter.dither-method", &v);
}
pub fn get_dither_method(&self) -> ::VideoDitherMethod {
self.0
.get_optional("GstVideoConverter.dither-method")
.expect("Wrong type")
.unwrap_or(::VideoDitherMethod::Bayer)
}
pub fn set_dither_quantization(&mut self, v: u32) {
self.0.set("GstVideoConverter.dither-quantization", &v);
}
pub fn get_dither_quantization(&self) -> u32 {
self.0
.get_optional("GstVideoConverter.dither-quantization")
.expect("Wrong type")
.unwrap_or(1)
}
pub fn set_src_x(&mut self, v: i32) {
self.0.set("GstVideoConverter.src-x", &v);
}
pub fn get_src_x(&self) -> i32 {
self.0
.get_optional("GstVideoConverter.src-x")
.expect("Wrong type")
.unwrap_or(0)
}
pub fn set_src_y(&mut self, v: i32) {
self.0.set("GstVideoConverter.src-y", &v);
}
pub fn get_src_y(&self) -> i32 {
self.0
.get_optional("GstVideoConverter.src-y")
.expect("Wrong type")
.unwrap_or(0)
}
pub fn set_src_width(&mut self, v: Option<i32>) {
if let Some(v) = v {
self.0.set("GstVideoConverter.src-width", &v);
} else {
self.0.remove_field("GstVideoConverter.src-width");
}
}
pub fn get_src_width(&self) -> Option<i32> {
self.0
.get_optional("GstVideoConverter.src-width")
.expect("Wrong type")
}
pub fn set_src_height(&mut self, v: Option<i32>) {
if let Some(v) = v {
self.0.set("GstVideoConverter.src-height", &v);
} else {
self.0.remove_field("GstVideoConverter.src-height");
}
}
pub fn get_src_height(&self) -> Option<i32> {
self.0
.get_optional("GstVideoConverter.src-height")
.expect("Wrong type")
}
pub fn set_dest_x(&mut self, v: i32) {
self.0.set("GstVideoConverter.dest-x", &v);
}
pub fn get_dest_x(&self) -> i32 {
self.0
.get_optional("GstVideoConverter.dest-x")
.expect("Wrong type")
.unwrap_or(0)
}
pub fn set_dest_y(&mut self, v: i32) {
self.0.set("GstVideoConverter.dest-y", &v);
}
pub fn get_dest_y(&self) -> i32 {
self.0
.get_optional("GstVideoConverter.dest-y")
.expect("Wrong type")
.unwrap_or(0)
}
pub fn set_dest_width(&mut self, v: Option<i32>) {
if let Some(v) = v {
self.0.set("GstVideoConverter.dest-width", &v);
} else {
self.0.remove_field("GstVideoConverter.dest-width");
}
}
pub fn get_dest_width(&self) -> Option<i32> {
self.0
.get_optional("GstVideoConverter.dest-width")
.expect("Wrong type")
}
pub fn set_dest_height(&mut self, v: Option<i32>) {
if let Some(v) = v {
self.0.set("GstVideoConverter.dest-height", &v);
} else {
self.0.remove_field("GstVideoConverter.dest-height");
}
}
pub fn get_dest_height(&self) -> Option<i32> {
self.0
.get_optional("GstVideoConverter.dest-height")
.expect("Wrong type")
}
pub fn set_fill_border(&mut self, v: bool) {
self.0.set("GstVideoConverter.fill-border", &v);
}
pub fn get_fill_border(&self) -> bool {
self.0
.get_optional("GstVideoConverter.fill-border")
.expect("Wrong type")
.unwrap_or(true)
}
pub fn set_alpha_value(&mut self, v: f64) {
self.0.set("GstVideoConverter.alpha-value", &v);
}
pub fn get_alpha_value(&self) -> f64 {
self.0
.get_optional("GstVideoConverter.alpha-value")
.expect("Wrong type")
.unwrap_or(1.0)
}
pub fn set_alpha_mode(&mut self, v: ::VideoAlphaMode) {
self.0.set("GstVideoConverter.alpha-mode", &v);
}
pub fn get_alpha_mode(&self) -> ::VideoAlphaMode {
self.0
.get_optional("GstVideoConverter.alpha-mode")
.expect("Wrong type")
.unwrap_or(::VideoAlphaMode::Copy)
}
pub fn set_border_argb(&mut self, v: u32) {
self.0.set("GstVideoConverter.border-argb", &v);
}
pub fn get_border_argb(&self) -> u32 {
self.0
.get_optional("GstVideoConverter.border-argb")
.expect("Wrong type")
.unwrap_or(0xff_00_00_00)
}
pub fn set_chroma_mode(&mut self, v: ::VideoChromaMode) {
self.0.set("GstVideoConverter.chroma-mode", &v);
}
pub fn get_chroma_mode(&self) -> ::VideoChromaMode {
self.0
.get_optional("GstVideoConverter.chroma-mode")
.expect("Wrong type")
.unwrap_or(::VideoChromaMode::Full)
}
pub fn set_matrix_mode(&mut self, v: ::VideoMatrixMode) {
self.0.set("GstVideoConverter.matrix-mode", &v);
}
pub fn get_matrix_mode(&self) -> ::VideoMatrixMode {
self.0
.get_optional("GstVideoConverter.matrix-mode")
.expect("Wrong type")
.unwrap_or(::VideoMatrixMode::Full)
}
pub fn set_gamma_mode(&mut self, v: ::VideoGammaMode) {
self.0.set("GstVideoConverter.gamma-mode", &v);
}
pub fn get_gamma_mode(&self) -> ::VideoGammaMode {
self.0
.get_optional("GstVideoConverter.gamma-mode")
.expect("Wrong type")
.unwrap_or(::VideoGammaMode::None)
}
pub fn set_primaries_mode(&mut self, v: ::VideoPrimariesMode) {
self.0.set("GstVideoConverter.primaries-mode", &v);
}
pub fn get_primaries_mode(&self) -> ::VideoPrimariesMode {
self.0
.get_optional("GstVideoConverter.primaries-mode")
.expect("Wrong type")
.unwrap_or(::VideoPrimariesMode::None)
}
pub fn set_threads(&mut self, v: u32) {
self.0.set("GstVideoConverter.threads", &v);
}
pub fn get_threads(&self) -> u32 {
self.0
.get_optional("GstVideoConverter.threads")
.expect("Wrong type")
.unwrap_or(1)
}
}