mirrors/gst-plugins-rs
mirrors/gst-plugins-rs
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git synced 2025-01-31 21:22:22 +00:00
Code Issues Projects Releases Wiki Activity

Port sink C code to Rust

Browse source
This commit is contained in:
Sebastian Dröge 2017-04-10 18:42:58 +03:00
parent d72f1f716b
commit 7139551773
5 changed files with 248 additions and 461 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
gst-plugin-file/src/lib.rs
View file

@ -39,16 +39,16 @@ fn plugin_init(plugin: &Plugin) -> bool {
});
sink_register(plugin,
&SinkInfo {
name: "rsfilesink",
long_name: "File Sink",
description: "Writes to local files",
classification: "Sink/File",
author: "Luis de Bethencourt <luisbg@osg.samsung.com>",
rank: 256 + 100,
create_instance: FileSink::new_boxed,
protocols: "file",
});
SinkInfo {
name: "rsfilesink".into(),
long_name: "File Sink".into(),
description: "Writes to local files".into(),
classification: "Sink/File".into(),
author: "Luis de Bethencourt <luisbg@osg.samsung.com>".into(),
rank: 256 + 100,
create_instance: FileSink::new_boxed,
protocols: vec!["file".into()],
});
true
}

2
gst-plugin/build.rs
View file

@ -14,7 +14,7 @@ fn main() {
let gstbase = pkg_config::probe_library("gstreamer-base-1.0").unwrap();
let includes = [gstreamer.include_paths, gstbase.include_paths];
let files = ["src/sink.c", "src/demuxer.c"];
let files = ["src/demuxer.c"];
let mut config = gcc::Config::new();
config.include("src");

329
gst-plugin/src/sink.c
View file

@ -1,329 +0,0 @@
/* Copyright (C) 2016-2017 Sebastian Dröge <sebastian@centricular.com>
* 2016 Luis de Bethencourt <luisbg@osg.samsung.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.
*/
#include "sink.h"
#include <string.h>
#include <stdint.h>
typedef struct
{
gchar *name;
gchar *long_name;
gchar *description;
gchar *classification;
gchar *author;
void *create_instance;
gchar **protocols;
} ElementData;
static GHashTable *sinks;
/* Declarations for Rust code */
extern gboolean sinks_register (void *plugin);
extern void *sink_new (GstRsSink * sink, void *create_instance);
extern GstFlowReturn sink_render (void *rssink, GstBuffer * buffer);
extern gboolean sink_set_uri (void *rssink, const char *uri, GError ** err);
extern char *sink_get_uri (void *rssink);
extern gboolean sink_start (void *rssink);
extern gboolean sink_stop (void *rssink);
extern void sink_drop (void *rssink);
extern void cstring_drop (void *str);
GST_DEBUG_CATEGORY_STATIC (gst_rs_sink_debug);
#define GST_CAT_DEFAULT gst_rs_sink_debug
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
enum
{
PROP_0,
PROP_URI
};
static void gst_rs_sink_uri_handler_init (gpointer g_iface,
gpointer iface_data);
static void gst_rs_sink_finalize (GObject * object);
static void gst_rs_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rs_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_rs_sink_start (GstBaseSink * basesink);
static gboolean gst_rs_sink_stop (GstBaseSink * basesink);
static GstFlowReturn gst_rs_sink_render (GstBaseSink * sink,
GstBuffer * buffer);
static GObjectClass *parent_class;
static void
gst_rs_sink_class_init (GstRsSinkClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSinkClass *gstbasesink_class;
ElementData *data =
g_hash_table_lookup (sinks, GSIZE_TO_POINTER (G_TYPE_FROM_CLASS (klass)));
g_assert (data != NULL);
gobject_class = G_OBJECT_CLASS (klass);
gstelement_class = GST_ELEMENT_CLASS (klass);
gstbasesink_class = GST_BASE_SINK_CLASS (klass);
gobject_class->finalize = gst_rs_sink_finalize;
gobject_class->set_property = gst_rs_sink_set_property;
gobject_class->get_property = gst_rs_sink_get_property;
g_object_class_install_property (gobject_class, PROP_URI,
g_param_spec_string ("uri", "URI",
"URI to read from", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_READY));
gst_element_class_set_static_metadata (gstelement_class,
data->long_name, data->classification, data->description, data->author);
gst_element_class_add_static_pad_template (gstelement_class, &sink_template);
gstbasesink_class->start = GST_DEBUG_FUNCPTR (gst_rs_sink_start);
gstbasesink_class->stop = GST_DEBUG_FUNCPTR (gst_rs_sink_stop);
gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_rs_sink_render);
}
static void
gst_rs_sink_init (GstRsSink * sink, GstRsSinkClass * klass)
{
ElementData *data =
g_hash_table_lookup (sinks, GSIZE_TO_POINTER (G_TYPE_FROM_CLASS (klass)));
g_assert (data != NULL);
gst_base_sink_set_sync (GST_BASE_SINK (sink), FALSE);
GST_DEBUG_OBJECT (sink, "Instantiating");
sink->instance = sink_new (sink, data->create_instance);
}
static void
gst_rs_sink_finalize (GObject * object)
{
GstRsSink *sink = GST_RS_SINK (object);
GST_DEBUG_OBJECT (sink, "Finalizing");
sink_drop (sink->instance);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_rs_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRsSink *sink = GST_RS_SINK (object);
switch (prop_id) {
case PROP_URI:
sink_set_uri (sink->instance, g_value_get_string (value), NULL);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_rs_sink_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRsSink *sink = GST_RS_SINK (object);
switch (prop_id) {
case PROP_URI:{
gchar *str = sink_get_uri (sink->instance);
g_value_set_string (value, str);
if (str)
cstring_drop (str);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstFlowReturn
gst_rs_sink_render (GstBaseSink * basesink, GstBuffer * buffer)
{
GstRsSink *sink = GST_RS_SINK (basesink);
GstFlowReturn ret;
GST_TRACE_OBJECT (sink, "Rendering buffer %p", buffer);
ret = sink_render (sink->instance, buffer);
GST_TRACE_OBJECT (sink, "Rendered buffer: %s", gst_flow_get_name (ret));
return ret;
}
/* open the rs, necessary to go to READY state */
static gboolean
gst_rs_sink_start (GstBaseSink * basesink)
{
GstRsSink *sink = GST_RS_SINK (basesink);
GST_DEBUG_OBJECT (sink, "Starting");
return sink_start (sink->instance);
}
/* unmap and close the rs */
static gboolean
gst_rs_sink_stop (GstBaseSink * basesink)
{
GstRsSink *sink = GST_RS_SINK (basesink);
GST_DEBUG_OBJECT (sink, "Stopping");
/* Ignore stop failures */
sink_stop (sink->instance);
return TRUE;
}
static GstURIType
gst_rs_sink_uri_get_type (GType type)
{
return GST_URI_SINK;
}
static const gchar *const *
gst_rs_sink_uri_get_protocols (GType type)
{
ElementData *data = g_hash_table_lookup (sinks, GSIZE_TO_POINTER (type));
g_assert (data != NULL);
return (const gchar * const *) data->protocols;
}
static gchar *
gst_rs_sink_uri_get_uri (GstURIHandler * handler)
{
GstRsSink *sink = GST_RS_SINK (handler);
gchar *res;
res = sink_get_uri (sink->instance);
GST_DEBUG_OBJECT (sink, "Returning URI %s", res);
return res;
}
static gboolean
gst_rs_sink_uri_set_uri (GstURIHandler * handler, const gchar * uri,
GError ** err)
{
GstRsSink *sink = GST_RS_SINK (handler);
GST_DEBUG_OBJECT (sink, "Setting URI %s", uri);
if (!sink_set_uri (sink->instance, uri, err)) {
GST_ERROR_OBJECT (sink, "Failed to set URI: %s", (*err)->message);
return FALSE;
}
return TRUE;
}
static void
gst_rs_sink_uri_handler_init (gpointer g_iface, gpointer iface_data)
{
GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
iface->get_type = gst_rs_sink_uri_get_type;
iface->get_protocols = gst_rs_sink_uri_get_protocols;
iface->get_uri = gst_rs_sink_uri_get_uri;
iface->set_uri = gst_rs_sink_uri_set_uri;
}
static gpointer
gst_rs_sink_init_class (gpointer data)
{
sinks = g_hash_table_new (g_direct_hash, g_direct_equal);
GST_DEBUG_CATEGORY_INIT (gst_rs_sink_debug, "rssink", 0,
"Rust sink base class");
parent_class = g_type_class_ref (GST_TYPE_BASE_SINK);
}
gboolean
gst_rs_sink_register (GstPlugin * plugin, const gchar * name,
const gchar * long_name, const gchar * description,
const gchar * classification, const gchar * author, GstRank rank,
void *create_instance, const gchar * protocols)
{
static GOnce gonce = G_ONCE_INIT;
GTypeInfo type_info = {
sizeof (GstRsSinkClass),
NULL,
NULL,
(GClassInitFunc) gst_rs_sink_class_init,
NULL,
NULL,
sizeof (GstRsSink),
0,
(GInstanceInitFunc) gst_rs_sink_init
};
GInterfaceInfo iface_info = {
gst_rs_sink_uri_handler_init,
NULL,
NULL
};
GType type;
gchar *type_name;
ElementData *data;
g_once (&gonce, gst_rs_sink_init_class, NULL);
GST_DEBUG ("Registering for %" GST_PTR_FORMAT ": %s", plugin, name);
GST_DEBUG (" long name: %s", long_name);
GST_DEBUG (" description: %s", description);
GST_DEBUG (" classification: %s", classification);
GST_DEBUG (" author: %s", author);
GST_DEBUG (" rank: %d", rank);
GST_DEBUG (" protocols: %s", protocols);
data = g_new0 (ElementData, 1);
data->name = g_strdup (name);
data->long_name = g_strdup (long_name);
data->description = g_strdup (description);
data->classification = g_strdup (classification);
data->author = g_strdup (author);
data->create_instance = create_instance;
data->protocols = g_strsplit (protocols, ":", -1);
type_name = g_strconcat ("RsSink-", name, NULL);
type = g_type_register_static (GST_TYPE_BASE_SINK, type_name, &type_info, 0);
g_free (type_name);
g_type_add_interface_static (type, GST_TYPE_URI_HANDLER, &iface_info);
g_hash_table_insert (sinks, GSIZE_TO_POINTER (type), data);
if (!gst_element_register (plugin, name, rank, type))
return FALSE;
return TRUE;
}

50
gst-plugin/src/sink.h
View file

@ -1,50 +0,0 @@
/* Copyright (C) 2016 Sebastian Dröge <sebastian@centricular.com>
* 2016 Luis de Bethencourt <luisbg@osg.samsung.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_RS_SINK_H__
#define __GST_RS_SINK_H__
#include <gst/gst.h>
#include <gst/base/gstbasesink.h>
G_BEGIN_DECLS
#define GST_RS_SINK(obj) \
((GstRsSink *)obj)
#define GST_RS_SINK_CLASS(klass) \
((GstRsSinkKlass *)klass)
typedef struct _GstRsSink GstRsSink;
typedef struct _GstRsSinkClass GstRsSinkClass;
struct _GstRsSink {
GstBaseSink element;
gpointer instance;
};
struct _GstRsSinkClass {
GstBaseSinkClass parent_class;
};
G_GNUC_INTERNAL gboolean gst_rs_sink_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RS_SINK_H__ */

308
gst-plugin/src/sink.rs
View file

@ -3,14 +3,14 @@
//
// 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
// <LICENSE-MIT or http://opensink.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use libc::c_char;
use std::os::raw::c_void;
use std::ffi::{CStr, CString};
use std::ptr;
use std::mem;
use std::panic::{self, AssertUnwindSafe};
@ -27,9 +27,12 @@ use buffer::*;
use miniobject::*;
use log::*;
use plugin::Plugin;
use caps::*;
use glib;
use gobject;
use gst;
use gst_base;
#[derive(Debug)]
pub enum SinkError {
@ -203,25 +206,12 @@ impl SinkWrapper {
}
}
#[no_mangle]
pub unsafe extern "C" fn sink_new(sink: *mut gst::GstElement,
create_instance: fn(Element) -> Box<Sink>)
-> *mut SinkWrapper {
let instance = create_instance(Element::new(sink));
Box::into_raw(Box::new(SinkWrapper::new(sink, instance)))
}
#[no_mangle]
pub unsafe extern "C" fn sink_drop(ptr: *mut SinkWrapper) {
let _ = Box::from_raw(ptr);
}
#[no_mangle]
pub unsafe extern "C" fn sink_set_uri(ptr: *const SinkWrapper,
uri_ptr: *const c_char,
cerr: *mut *mut glib::GError)
-> glib::gboolean {
let wrap: &SinkWrapper = &*ptr;
unsafe fn sink_set_uri(ptr: *const RsSink,
uri_ptr: *const c_char,
cerr: *mut *mut glib::GError)
-> glib::gboolean {
let sink = &*(ptr as *const RsSink);
let wrap: &SinkWrapper = &*sink.wrap;
panic_to_error!(wrap, glib::GFALSE, {
let uri_str = if uri_ptr.is_null() {
@ -241,21 +231,21 @@ pub unsafe extern "C" fn sink_set_uri(ptr: *const SinkWrapper,
})
}
#[no_mangle]
pub unsafe extern "C" fn sink_get_uri(ptr: *const SinkWrapper) -> *mut c_char {
let wrap: &SinkWrapper = &*ptr;
unsafe fn sink_get_uri(ptr: *const RsSink) -> *mut c_char {
let sink = &*(ptr as *const RsSink);
let wrap: &SinkWrapper = &*sink.wrap;
panic_to_error!(wrap, ptr::null_mut(), {
match wrap.get_uri() {
Some(uri_str) => CString::new(uri_str).unwrap().into_raw(),
Some(uri_str) => glib::g_strdup(CString::new(uri_str).unwrap().as_ptr()),
None => ptr::null_mut(),
}
})
}
#[no_mangle]
pub unsafe extern "C" fn sink_start(ptr: *const SinkWrapper) -> glib::gboolean {
let wrap: &SinkWrapper = &*ptr;
unsafe extern "C" fn sink_start(ptr: *mut gst_base::GstBaseSink) -> glib::gboolean {
let sink = &*(ptr as *const RsSink);
let wrap: &SinkWrapper = &*sink.wrap;
panic_to_error!(wrap, glib::GFALSE, {
if wrap.start() {
@ -266,9 +256,10 @@ pub unsafe extern "C" fn sink_start(ptr: *const SinkWrapper) -> glib::gboolean {
})
}
#[no_mangle]
pub unsafe extern "C" fn sink_stop(ptr: *const SinkWrapper) -> glib::gboolean {
let wrap: &SinkWrapper = &*ptr;
unsafe extern "C" fn sink_stop(ptr: *mut gst_base::GstBaseSink) -> glib::gboolean {
let sink = &*(ptr as *const RsSink);
let wrap: &SinkWrapper = &*sink.wrap;
panic_to_error!(wrap, glib::GTRUE, {
if wrap.stop() {
glib::GTRUE
@ -278,58 +269,233 @@ pub unsafe extern "C" fn sink_stop(ptr: *const SinkWrapper) -> glib::gboolean {
})
}
#[no_mangle]
pub unsafe extern "C" fn sink_render(ptr: *const SinkWrapper,
buffer: GstRefPtr<Buffer>)
-> gst::GstFlowReturn {
let wrap: &SinkWrapper = &*ptr;
unsafe extern "C" fn sink_render(ptr: *mut gst_base::GstBaseSink,
buffer: *mut gst::GstBuffer)
-> gst::GstFlowReturn {
let sink = &*(ptr as *const RsSink);
let wrap: &SinkWrapper = &*sink.wrap;
let buffer = GstRefPtr(buffer);
panic_to_error!(wrap, gst::GST_FLOW_ERROR, {
let buffer: GstRef<Buffer> = GstRef::new(&buffer);
wrap.render(buffer.as_ref())
})
}
pub struct SinkInfo<'a> {
pub name: &'a str,
pub long_name: &'a str,
pub description: &'a str,
pub classification: &'a str,
pub author: &'a str,
pub rank: i32,
pub struct SinkInfo {
pub name: String,
pub long_name: String,
pub description: String,
pub classification: String,
pub author: String,
pub rank: u32,
pub create_instance: fn(Element) -> Box<Sink>,
pub protocols: &'a str,
pub protocols: Vec<String>,
}
pub fn sink_register(plugin: &Plugin, sink_info: &SinkInfo) {
extern "C" {
fn gst_rs_sink_register(plugin: *const gst::GstPlugin,
name: *const c_char,
long_name: *const c_char,
description: *const c_char,
classification: *const c_char,
author: *const c_char,
rank: i32,
create_instance: *const c_void,
protocols: *const c_char)
-> glib::gboolean;
#[repr(C)]
struct RsSink {
parent: gst_base::GstBaseSink,
wrap: *mut SinkWrapper,
sink_info: *const SinkInfo,
}
#[repr(C)]
struct RsSinkClass {
parent_class: gst_base::GstBaseSinkClass,
sink_info: *const SinkInfo,
protocols: *const Vec<*const c_char>,
parent_vtable: glib::gconstpointer,
}
unsafe extern "C" fn sink_finalize(obj: *mut gobject::GObject) {
let sink = &mut *(obj as *mut RsSink);
drop(Box::from_raw(sink.wrap));
let sink_klass = &**(obj as *const *const RsSinkClass);
let parent_klass = &*(sink_klass.parent_vtable as *const gobject::GObjectClass);
parent_klass.finalize.map(|f| f(obj));
}
unsafe extern "C" fn sink_set_property(obj: *mut gobject::GObject,
id: u32,
value: *mut gobject::GValue,
_pspec: *mut gobject::GParamSpec) {
let sink = &*(obj as *const RsSink);
match id {
1 => {
let uri_ptr = gobject::g_value_get_string(value);
sink_set_uri(sink, uri_ptr, ptr::null_mut());
}
_ => unreachable!(),
}
}
unsafe extern "C" fn sink_get_property(obj: *mut gobject::GObject,
id: u32,
value: *mut gobject::GValue,
_pspec: *mut gobject::GParamSpec) {
let sink = &*(obj as *const RsSink);
match id {
1 => {
let uri_ptr = sink_get_uri(sink);
gobject::g_value_take_string(value, uri_ptr);
}
_ => unreachable!(),
}
}
unsafe extern "C" fn sink_class_init(klass: glib::gpointer, klass_data: glib::gpointer) {
let sink_klass = &mut *(klass as *mut RsSinkClass);
let sink_info = &*(klass_data as *const SinkInfo);
{
let gobject_klass = &mut sink_klass.parent_class
.parent_class
.parent_class
.parent_class;
gobject_klass.set_property = Some(sink_set_property);
gobject_klass.get_property = Some(sink_get_property);
gobject_klass.finalize = Some(sink_finalize);
let name_cstr = CString::new("uri").unwrap();
let nick_cstr = CString::new("URI").unwrap();
let blurb_cstr = CString::new("URI to read from").unwrap();
gobject::g_object_class_install_property(klass as *mut gobject::GObjectClass, 1,
gobject::g_param_spec_string(name_cstr.as_ptr(),
nick_cstr.as_ptr(),
blurb_cstr.as_ptr(),
ptr::null_mut(),
gobject::G_PARAM_READWRITE));
}
let cname = CString::new(sink_info.name).unwrap();
let clong_name = CString::new(sink_info.long_name).unwrap();
let cdescription = CString::new(sink_info.description).unwrap();
let cclassification = CString::new(sink_info.classification).unwrap();
let cauthor = CString::new(sink_info.author).unwrap();
let cprotocols = CString::new(sink_info.protocols).unwrap();
{
let element_klass = &mut sink_klass.parent_class.parent_class;
let longname_cstr = CString::new(sink_info.long_name.clone()).unwrap();
let classification_cstr = CString::new(sink_info.description.clone()).unwrap();
let description_cstr = CString::new(sink_info.classification.clone()).unwrap();
let author_cstr = CString::new(sink_info.author.clone()).unwrap();
gst::gst_element_class_set_static_metadata(element_klass,
longname_cstr.into_raw(),
classification_cstr.into_raw(),
description_cstr.into_raw(),
author_cstr.into_raw());
let caps = Caps::new_any();
let templ_name = CString::new("sink").unwrap();
let pad_template = gst::gst_pad_template_new(templ_name.into_raw(),
gst::GST_PAD_SINK,
gst::GST_PAD_ALWAYS,
caps.as_ptr());
gst::gst_element_class_add_pad_template(element_klass, pad_template);
}
{
let basesink_klass = &mut sink_klass.parent_class;
basesink_klass.start = Some(sink_start);
basesink_klass.stop = Some(sink_stop);
basesink_klass.render = Some(sink_render);
}
sink_klass.sink_info = sink_info;
let mut protocols = Box::new(Vec::with_capacity(sink_info.protocols.len()));
for p in &sink_info.protocols {
let p_cstr = CString::new(p.clone().into_bytes()).unwrap();
protocols.push(p_cstr.into_raw() as *const c_char);
}
protocols.push(ptr::null());
sink_klass.protocols = Box::into_raw(protocols) as *const Vec<*const c_char>;
sink_klass.parent_vtable = gobject::g_type_class_peek_parent(klass);
}
unsafe extern "C" fn sink_init(instance: *mut gobject::GTypeInstance, klass: glib::gpointer) {
let sink = &mut *(instance as *mut RsSink);
let sink_klass = &*(klass as *const RsSinkClass);
let sink_info = &*sink_klass.sink_info;
sink.sink_info = sink_info;
let wrap = Box::new(SinkWrapper::new(&mut sink.parent.element,
(sink_info.create_instance)(Element::new(&mut sink.parent.element))));
sink.wrap = Box::into_raw(wrap);
gst_base::gst_base_sink_set_sync(&mut sink.parent, glib::GFALSE);
}
unsafe extern "C" fn sink_uri_handler_get_type(_type: glib::GType) -> gst::GstURIType {
gst::GST_URI_SINK
}
unsafe extern "C" fn sink_uri_handler_get_protocols(type_: glib::GType) -> *const *const c_char {
let klass = gobject::g_type_class_peek(type_);
let sink_klass = &*(klass as *const RsSinkClass);
(*sink_klass.protocols).as_ptr()
}
unsafe extern "C" fn sink_uri_handler_get_uri(uri_handler: *mut gst::GstURIHandler) -> *mut c_char {
sink_get_uri(uri_handler as *const RsSink)
}
unsafe extern "C" fn sink_uri_handler_set_uri(uri_handler: *mut gst::GstURIHandler,
uri: *const c_char,
err: *mut *mut glib::GError)
-> glib::gboolean {
sink_set_uri(uri_handler as *const RsSink, uri, err)
}
unsafe extern "C" fn sink_uri_handler_init(iface: glib::gpointer, _iface_data: glib::gpointer) {
let uri_handler_iface = &mut *(iface as *mut gst::GstURIHandlerInterface);
uri_handler_iface.get_type = Some(sink_uri_handler_get_type);
uri_handler_iface.get_protocols = Some(sink_uri_handler_get_protocols);
uri_handler_iface.get_uri = Some(sink_uri_handler_get_uri);
uri_handler_iface.set_uri = Some(sink_uri_handler_set_uri);
}
pub fn sink_register(plugin: &Plugin, sink_info: SinkInfo) {
unsafe {
gst_rs_sink_register(plugin.as_ptr(),
cname.as_ptr(),
clong_name.as_ptr(),
cdescription.as_ptr(),
cclassification.as_ptr(),
cauthor.as_ptr(),
sink_info.rank,
sink_info.create_instance as *const c_void,
cprotocols.as_ptr());
let parent_type = gst_base::gst_base_sink_get_type();
let mut type_name = String::from("RsSink-");
type_name.push_str(&sink_info.name);
let type_name_cstr = CString::new(type_name.into_bytes()).unwrap();
let name_cstr = CString::new(sink_info.name.clone().into_bytes()).unwrap();
let rank = sink_info.rank;
let sink_info = Box::new(sink_info);
let sink_info_ptr = Box::into_raw(sink_info) as glib::gpointer;
let type_info = gobject::GTypeInfo {
class_size: mem::size_of::<RsSinkClass>() as u16,
base_init: None,
base_finalize: None,
class_init: Some(sink_class_init),
class_finalize: None,
class_data: sink_info_ptr,
instance_size: mem::size_of::<RsSink>() as u16,
n_preallocs: 0,
instance_init: Some(sink_init),
value_table: ptr::null(),
};
let type_ = gobject::g_type_register_static(parent_type,
type_name_cstr.as_ptr(),
&type_info,
gobject::GTypeFlags::empty());
let iface_info = gobject::GInterfaceInfo {
interface_init: Some(sink_uri_handler_init),
interface_finalize: None,
interface_data: ptr::null_mut(),
};
gobject::g_type_add_interface_static(type_, gst::gst_uri_handler_get_type(), &iface_info);
gst::gst_element_register(plugin.as_ptr(), name_cstr.as_ptr(), rank, type_);
}
}