mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer-rs.git
synced 2024-11-23 10:01:02 +00:00
489 lines
16 KiB
Rust
489 lines
16 KiB
Rust
// Copyright (C) 2016-2017 Sebastian Dröge <sebastian@centricular.com>
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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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use DebugLevel;
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use libc::c_char;
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use std::borrow::Cow;
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use std::ffi::CStr;
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use std::fmt;
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use std::ptr;
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use once_cell::sync::Lazy;
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use gobject_sys;
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use gst_sys;
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use glib::translate::*;
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use glib::IsA;
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use glib_sys::gpointer;
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#[derive(PartialEq, Eq)]
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pub struct DebugMessage(ptr::NonNull<gst_sys::GstDebugMessage>);
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impl fmt::Debug for DebugMessage {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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f.debug_tuple("DebugMessage").field(&self.get()).finish()
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}
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}
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impl DebugMessage {
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pub fn get(&self) -> Option<Cow<str>> {
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unsafe {
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let message = gst_sys::gst_debug_message_get(self.0.as_ptr());
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if message.is_null() {
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None
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} else {
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Some(CStr::from_ptr(message).to_string_lossy())
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}
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}
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}
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}
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#[derive(PartialEq, Eq, Clone, Copy)]
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pub struct DebugCategory(ptr::NonNull<gst_sys::GstDebugCategory>);
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impl DebugCategory {
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pub fn new(name: &str, color: ::DebugColorFlags, description: Option<&str>) -> DebugCategory {
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assert_initialized_main_thread!();
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extern "C" {
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fn _gst_debug_category_new(
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name: *const c_char,
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color: gst_sys::GstDebugColorFlags,
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description: *const c_char,
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) -> *mut gst_sys::GstDebugCategory;
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}
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// Gets the category if it exists already
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unsafe {
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let ptr = _gst_debug_category_new(
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name.to_glib_none().0,
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color.to_glib(),
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description.to_glib_none().0,
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);
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assert!(!ptr.is_null());
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DebugCategory(ptr::NonNull::new_unchecked(ptr))
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}
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}
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pub fn get(name: &str) -> Option<DebugCategory> {
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skip_assert_initialized!();
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unsafe {
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extern "C" {
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fn _gst_debug_get_category(name: *const c_char) -> *mut gst_sys::GstDebugCategory;
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}
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let cat = _gst_debug_get_category(name.to_glib_none().0);
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if cat.is_null() {
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None
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} else {
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Some(DebugCategory(ptr::NonNull::new_unchecked(cat)))
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}
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}
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}
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pub fn get_threshold(self) -> ::DebugLevel {
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from_glib(unsafe { gst_sys::gst_debug_category_get_threshold(self.0.as_ptr()) })
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}
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pub fn set_threshold(self, threshold: ::DebugLevel) {
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unsafe { gst_sys::gst_debug_category_set_threshold(self.0.as_ptr(), threshold.to_glib()) }
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}
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pub fn reset_threshold(self) {
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unsafe { gst_sys::gst_debug_category_reset_threshold(self.0.as_ptr()) }
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}
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pub fn get_color(self) -> ::DebugColorFlags {
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unsafe { from_glib(gst_sys::gst_debug_category_get_color(self.0.as_ptr())) }
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}
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pub fn get_name<'a>(self) -> &'a str {
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unsafe {
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CStr::from_ptr(gst_sys::gst_debug_category_get_name(self.0.as_ptr()))
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.to_str()
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.unwrap()
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}
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}
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pub fn get_description<'a>(self) -> Option<&'a str> {
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unsafe {
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let ptr = gst_sys::gst_debug_category_get_description(self.0.as_ptr());
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if ptr.is_null() {
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None
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} else {
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Some(CStr::from_ptr(ptr).to_str().unwrap())
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}
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}
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}
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#[inline]
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pub fn log<O: IsA<glib::Object>>(
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self,
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obj: Option<&O>,
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level: ::DebugLevel,
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file: &str,
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module: &str,
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line: u32,
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args: fmt::Arguments,
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) {
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unsafe {
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if level.to_glib() as i32 > self.0.as_ref().threshold {
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return;
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}
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}
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let obj_ptr = match obj {
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Some(obj) => obj.to_glib_none().0 as *mut gobject_sys::GObject,
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None => ptr::null_mut(),
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};
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unsafe {
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gst_sys::gst_debug_log(
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self.0.as_ptr(),
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level.to_glib(),
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file.to_glib_none().0,
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module.to_glib_none().0,
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line as i32,
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obj_ptr,
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fmt::format(args).replace("%", "%%").to_glib_none().0,
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);
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}
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}
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}
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unsafe impl Sync for DebugCategory {}
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unsafe impl Send for DebugCategory {}
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impl fmt::Debug for DebugCategory {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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f.debug_tuple("DebugCategory")
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.field(&self.get_name())
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.finish()
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}
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}
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pub static CAT_RUST: Lazy<DebugCategory> = Lazy::new(|| {
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DebugCategory::new(
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"GST_RUST",
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::DebugColorFlags::UNDERLINE,
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Some("GStreamer's Rust binding core"),
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)
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});
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macro_rules! declare_debug_category_from_name(
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($cat:ident, $cat_name:expr) => (
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pub static $cat: Lazy<DebugCategory> = Lazy::new(|| DebugCategory::get($cat_name)
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.expect(&format!("Unable to find `DebugCategory` with name {}", $cat_name)));
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);
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);
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declare_debug_category_from_name!(CAT_DEFAULT, "default");
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declare_debug_category_from_name!(CAT_GST_INIT, "GST_INIT");
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declare_debug_category_from_name!(CAT_MEMORY, "GST_MEMORY");
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declare_debug_category_from_name!(CAT_PARENTAGE, "GST_PARENTAGE");
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declare_debug_category_from_name!(CAT_STATES, "GST_STATES");
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declare_debug_category_from_name!(CAT_SCHEDULING, "GST_SCHEDULING");
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declare_debug_category_from_name!(CAT_BUFFER, "GST_BUFFER");
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declare_debug_category_from_name!(CAT_BUFFER_LIST, "GST_BUFFER_LIST");
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declare_debug_category_from_name!(CAT_BUS, "GST_BUS");
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declare_debug_category_from_name!(CAT_CAPS, "GST_CAPS");
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declare_debug_category_from_name!(CAT_CLOCK, "GST_CLOCK");
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declare_debug_category_from_name!(CAT_ELEMENT_PADS, "GST_ELEMENT_PADS");
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declare_debug_category_from_name!(CAT_PADS, "GST_PADS");
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declare_debug_category_from_name!(CAT_PERFORMANCE, "GST_PERFORMANCE");
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declare_debug_category_from_name!(CAT_PIPELINE, "GST_PIPELINE");
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declare_debug_category_from_name!(CAT_PLUGIN_LOADING, "GST_PLUGIN_LOADING");
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declare_debug_category_from_name!(CAT_PLUGIN_INFO, "GST_PLUGIN_INFO");
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declare_debug_category_from_name!(CAT_PROPERTIES, "GST_PROPERTIES");
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declare_debug_category_from_name!(CAT_NEGOTIATION, "GST_NEGOTIATION");
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declare_debug_category_from_name!(CAT_REFCOUNTING, "GST_REFCOUNTING");
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declare_debug_category_from_name!(CAT_ERROR_SYSTEM, "GST_ERROR_SYSTEM");
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declare_debug_category_from_name!(CAT_EVENT, "GST_EVENT");
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declare_debug_category_from_name!(CAT_MESSAGE, "GST_MESSAGE");
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declare_debug_category_from_name!(CAT_PARAMS, "GST_PARAMS");
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declare_debug_category_from_name!(CAT_CALL_TRACE, "GST_CALL_TRACE");
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declare_debug_category_from_name!(CAT_SIGNAL, "GST_SIGNAL");
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declare_debug_category_from_name!(CAT_PROBE, "GST_PROBE");
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declare_debug_category_from_name!(CAT_REGISTRY, "GST_REGISTRY");
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declare_debug_category_from_name!(CAT_QOS, "GST_QOS");
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declare_debug_category_from_name!(CAT_META, "GST_META");
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declare_debug_category_from_name!(CAT_LOCKING, "GST_LOCKING");
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declare_debug_category_from_name!(CAT_CONTEXT, "GST_CONTEXT");
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#[macro_export]
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macro_rules! gst_error(
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($cat:expr, obj: $obj:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Error, obj: $obj, $($args)*)
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}};
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($cat:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Error, $($args)*)
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}};
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);
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#[macro_export]
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macro_rules! gst_warning(
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($cat:expr, obj: $obj:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Warning, obj: $obj, $($args)*)
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}};
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($cat:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Warning, $($args)*)
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}};
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);
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#[macro_export]
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macro_rules! gst_fixme(
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($cat:expr, obj: $obj:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Fixme, obj: $obj, $($args)*)
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}};
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($cat:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Fixme, $($args)*)
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}};
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);
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#[macro_export]
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macro_rules! gst_info(
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($cat:expr, obj: $obj:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Info, obj: $obj, $($args)*)
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}};
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($cat:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Info, $($args)*)
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}};
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);
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#[macro_export]
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macro_rules! gst_debug(
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($cat:expr, obj: $obj:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Debug, obj: $obj, $($args)*)
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}};
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($cat:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Debug, $($args)*)
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}};
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);
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#[macro_export]
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macro_rules! gst_log(
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($cat:expr, obj: $obj:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Log, obj: $obj, $($args)*)
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}};
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($cat:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Log, $($args)*)
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}};
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);
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#[macro_export]
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macro_rules! gst_trace(
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($cat:expr, obj: $obj:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Trace, obj: $obj, $($args)*)
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}};
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($cat:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Trace, $($args)*)
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}};
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);
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#[macro_export]
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macro_rules! gst_memdump(
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($cat:expr, obj: $obj:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Memdump, obj: $obj, $($args)*)
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}};
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($cat:expr, $($args:tt)*) => { {
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$crate::gst_log_with_level!($cat.clone(), level: $crate::DebugLevel::Memdump, $($args)*)
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}};
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);
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#[macro_export]
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macro_rules! gst_log_with_level(
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($cat:expr, level: $level:expr, obj: $obj:expr, $($args:tt)*) => { {
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$crate::DebugCategory::log($cat.clone(), Some($obj), $level, file!(),
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module_path!(), line!(), format_args!($($args)*))
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}};
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($cat:expr, level: $level:expr, $($args:tt)*) => { {
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$crate::DebugCategory::log($cat.clone(), None as Option<&$crate::glib::Object>, $level, file!(),
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module_path!(), line!(), format_args!($($args)*))
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}};
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);
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unsafe extern "C" fn log_handler<T>(
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category: *mut gst_sys::GstDebugCategory,
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level: gst_sys::GstDebugLevel,
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file: *const c_char,
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function: *const c_char,
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line: i32,
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object: *mut gobject_sys::GObject,
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message: *mut gst_sys::GstDebugMessage,
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user_data: gpointer,
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) where
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T: Fn(DebugCategory, DebugLevel, &str, &str, u32, Option<&glib::Object>, &DebugMessage)
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+ Send
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+ Sync
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+ 'static,
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{
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let category = DebugCategory(ptr::NonNull::new_unchecked(category));
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let level = from_glib(level);
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let file = CStr::from_ptr(file).to_string_lossy();
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let function = CStr::from_ptr(function).to_string_lossy();
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let line = line as u32;
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let object: Borrowed<Option<glib::Object>> = from_glib_borrow(object);
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let message = DebugMessage(ptr::NonNull::new_unchecked(message));
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let handler = &*(user_data as *mut T);
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(handler)(
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category,
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level,
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&file,
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&function,
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line,
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object.as_ref().as_ref(),
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&message,
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);
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}
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unsafe extern "C" fn log_handler_data_free<T>(data: gpointer) {
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let data = Box::from_raw(data as *mut T);
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drop(data);
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}
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#[derive(Debug)]
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pub struct DebugLogFunction(ptr::NonNull<std::os::raw::c_void>);
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// The contained pointer is never dereferenced and has no thread affinity.
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// It may be convenient to send it or share it between threads to allow cleaning
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// up log functions from other threads than the one that created it.
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unsafe impl Send for DebugLogFunction {}
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unsafe impl Sync for DebugLogFunction {}
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pub fn debug_add_log_function<T>(function: T) -> DebugLogFunction
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where
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T: Fn(DebugCategory, DebugLevel, &str, &str, u32, Option<&glib::Object>, &DebugMessage)
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+ Send
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+ Sync
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+ 'static,
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{
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skip_assert_initialized!();
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unsafe {
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let user_data = Box::new(function);
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let user_data_ptr = Box::into_raw(user_data) as gpointer;
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gst_sys::gst_debug_add_log_function(
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Some(log_handler::<T>),
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user_data_ptr,
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Some(log_handler_data_free::<T>),
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);
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DebugLogFunction(ptr::NonNull::new_unchecked(user_data_ptr))
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}
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}
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pub fn debug_remove_default_log_function() {
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skip_assert_initialized!();
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unsafe {
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gst_sys::gst_debug_remove_log_function(Some(gst_sys::gst_debug_log_default));
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}
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}
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pub fn debug_remove_log_function(log_fn: DebugLogFunction) {
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skip_assert_initialized!();
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unsafe {
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let removed = gst_sys::gst_debug_remove_log_function_by_data(log_fn.0.as_ptr());
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assert_eq!(removed, 1);
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use std::sync::mpsc;
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use std::sync::{Arc, Mutex};
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#[test]
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fn get_existing() {
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::init().unwrap();
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let perf_cat = DebugCategory::get("GST_PERFORMANCE")
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.expect("Unable to find `DebugCategory` with name \"GST_PERFORMANCE\"");
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assert_eq!(perf_cat.get_name(), CAT_PERFORMANCE.get_name());
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}
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#[test]
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fn new_and_log() {
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::init().unwrap();
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let cat = DebugCategory::new(
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"test-cat",
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::DebugColorFlags::empty(),
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Some("some debug category"),
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);
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gst_error!(cat, "meh");
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gst_warning!(cat, "meh");
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gst_fixme!(cat, "meh");
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gst_info!(cat, "meh");
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gst_debug!(cat, "meh");
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gst_log!(cat, "meh");
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gst_trace!(cat, "meh");
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gst_memdump!(cat, "meh");
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let obj = ::Bin::new(Some("meh"));
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gst_error!(cat, obj: &obj, "meh");
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gst_warning!(cat, obj: &obj, "meh");
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gst_fixme!(cat, obj: &obj, "meh");
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gst_info!(cat, obj: &obj, "meh");
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gst_debug!(cat, obj: &obj, "meh");
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gst_log!(cat, obj: &obj, "meh");
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gst_trace!(cat, obj: &obj, "meh");
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gst_memdump!(cat, obj: &obj, "meh");
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}
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#[test]
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fn log_handler() {
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::init().unwrap();
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let cat = DebugCategory::new(
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"test-cat-log",
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::DebugColorFlags::empty(),
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Some("some debug category"),
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);
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cat.set_threshold(DebugLevel::Info);
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let obj = ::Bin::new(Some("meh"));
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let (sender, receiver) = mpsc::channel();
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let sender = Arc::new(Mutex::new(sender));
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|
|
|
let handler = move |category: DebugCategory,
|
|
level: DebugLevel,
|
|
_file: &str,
|
|
_function: &str,
|
|
_line: u32,
|
|
_object: Option<&glib::Object>,
|
|
message: &DebugMessage| {
|
|
let cat = DebugCategory::get("test-cat-log").unwrap();
|
|
|
|
if category != cat {
|
|
// This test can run in parallel with other tests, including new_and_log above.
|
|
// We cannot be certain we only see our own messages.
|
|
return;
|
|
}
|
|
|
|
assert_eq!(level, DebugLevel::Info);
|
|
assert_eq!(&message.get().unwrap(), "meh");
|
|
let _ = sender.lock().unwrap().send(());
|
|
};
|
|
|
|
debug_remove_default_log_function();
|
|
let log_fn = debug_add_log_function(handler);
|
|
gst_info!(cat, obj: &obj, "meh");
|
|
|
|
receiver.recv().unwrap();
|
|
|
|
debug_remove_log_function(log_fn);
|
|
|
|
gst_info!(cat, obj: &obj, "meh2");
|
|
assert!(receiver.recv().is_err());
|
|
}
|
|
}
|