mirrors/gst-plugins-rs
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Port C code for the source to pure Rust

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This commit is contained in:
Sebastian Dröge 2017-04-10 13:30:07 +03:00
parent 50829bdec9
commit d72f1f716b
18 changed files with 381 additions and 658 deletions
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18
gst-plugin-file/src/filesink.rs
View file

@ -51,11 +51,10 @@ impl FileSink {
}
fn validate_uri(uri: &Url) -> Result<(), UriError> {
let _ = try!(uri.to_file_path()
.or_else(|_| {
Err(UriError::new(UriErrorKind::UnsupportedProtocol,
let _ = try!(uri.to_file_path().or_else(|_| {
Err(UriError::new(UriErrorKind::UnsupportedProtocol,
Some(format!("Unsupported file URI '{}'", uri.as_str()))))
}));
}));
Ok(())
}
@ -69,12 +68,11 @@ impl Sink for FileSink {
return Err(error_msg!(SinkError::Failure, ["Sink already started"]));
}
let location = try!(uri.to_file_path()
.or_else(|_| {
error!(self.logger, "Unsupported file URI '{}'", uri.as_str());
Err(error_msg!(SinkError::Failure,
["Unsupported file URI '{}'", uri.as_str()]))
}));
let location = try!(uri.to_file_path().or_else(|_| {
error!(self.logger, "Unsupported file URI '{}'", uri.as_str());
Err(error_msg!(SinkError::Failure,
["Unsupported file URI '{}'", uri.as_str()]))
}));
let file = try!(File::create(location.as_path()).or_else(|err| {

22
gst-plugin-file/src/filesrc.rs
View file

@ -49,11 +49,10 @@ impl FileSrc {
}
fn validate_uri(uri: &Url) -> Result<(), UriError> {
let _ = try!(uri.to_file_path()
.or_else(|_| {
Err(UriError::new(UriErrorKind::UnsupportedProtocol,
let _ = try!(uri.to_file_path().or_else(|_| {
Err(UriError::new(UriErrorKind::UnsupportedProtocol,
Some(format!("Unsupported file URI '{}'", uri.as_str()))))
}));
}));
Ok(())
}
@ -68,9 +67,7 @@ impl Source for FileSrc {
fn get_size(&self) -> Option<u64> {
if let StreamingState::Started { ref file, .. } = self.streaming_state {
file.metadata()
.ok()
.map(|m| m.len())
file.metadata().ok().map(|m| m.len())
} else {
None
}
@ -81,12 +78,11 @@ impl Source for FileSrc {
return Err(error_msg!(SourceError::Failure, ["Source already started"]));
}
let location = try!(uri.to_file_path()
.or_else(|_| {
error!(self.logger, "Unsupported file URI '{}'", uri.as_str());
Err(error_msg!(SourceError::Failure,
["Unsupported file URI '{}'", uri.as_str()]))
}));
let location = try!(uri.to_file_path().or_else(|_| {
error!(self.logger, "Unsupported file URI '{}'", uri.as_str());
Err(error_msg!(SourceError::Failure,
["Unsupported file URI '{}'", uri.as_str()]))
}));
let file = try!(File::open(location.as_path()).or_else(|err| {
error!(self.logger,

32
gst-plugin-file/src/lib.rs
View file

@ -26,29 +26,29 @@ use filesink::FileSink;
fn plugin_init(plugin: &Plugin) -> bool {
source_register(plugin,
&SourceInfo {
name: "rsfilesrc",
long_name: "File Source",
description: "Reads local files",
classification: "Source/File",
author: "Sebastian Dröge <sebastian@centricular.com>",
SourceInfo {
name: "rsfilesrc".into(),
long_name: "File Source".into(),
description: "Reads local files".into(),
classification: "Source/File".into(),
author: "Sebastian Dröge <sebastian@centricular.com>".into(),
rank: 256 + 100,
create_instance: FileSrc::new_boxed,
protocols: "file",
protocols: vec!["file".into()],
push_only: false,
});
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",
});
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",
});
true
}

61
gst-plugin-flv/src/flvdemux.rs
View file

@ -160,10 +160,10 @@ impl AudioFormat {
&[("layout", &"interleaved".into()),
("format",
&if self.width == 8 {
"U8".into()
} else {
"S16LE".into()
})]))
"U8".into()
} else {
"S16LE".into()
})]))
} else {
None
}
@ -236,14 +236,17 @@ impl AudioFormat {
};
if self.rate != 0 {
caps.as_mut()
.map(|c| c.get_mut().unwrap().set_simple(&[("rate", &(self.rate as i32).into())]));
caps.as_mut().map(|c| {
c.get_mut().unwrap().set_simple(&[("rate",
&(self.rate as i32).into())])
});
}
if self.channels != 0 {
caps.as_mut()
.map(|c| {
c.get_mut().unwrap().set_simple(&[("channels", &(self.channels as i32).into())])
});
caps.as_mut().map(|c| {
c.get_mut().unwrap().set_simple(&[("channels",
&(self.channels as i32)
.into())])
});
}
caps
@ -342,23 +345,27 @@ impl VideoFormat {
if let (Some(width), Some(height)) = (self.width, self.height) {
caps.as_mut().map(|c| {
c.get_mut().unwrap().set_simple(&[("width", &(width as i32).into()),
("height", &(height as i32).into())])
});
c.get_mut().unwrap().set_simple(&[("width",
&(width as i32).into()),
("height",
&(height as i32).into())])
});
}
if let Some(par) = self.pixel_aspect_ratio {
if *par.numer() != 0 && par.numer() != par.denom() {
caps.as_mut().map(|c| {
c.get_mut().unwrap().set_simple(&[("pixel-aspect-ratio", &par.into())])
});
c.get_mut().unwrap().set_simple(&[("pixel-aspect-ratio",
&par.into())])
});
}
}
if let Some(fps) = self.framerate {
if *fps.numer() != 0 {
caps.as_mut()
.map(|c| c.get_mut().unwrap().set_simple(&[("framerate", &fps.into())]));
caps.as_mut().map(|c| {
c.get_mut().unwrap().set_simple(&[("framerate", &fps.into())])
});
}
}
@ -538,16 +545,14 @@ impl FlvDemux {
let mut streams = Vec::new();
if audio_changed {
if let Some(caps) = streaming_state.audio
.as_ref()
.and_then(|a| a.to_caps()) {
if let Some(caps) =
streaming_state.audio.as_ref().and_then(|a| a.to_caps()) {
streams.push(Stream::new(AUDIO_STREAM_ID, caps, String::from("audio")));
}
}
if video_changed {
if let Some(caps) = streaming_state.video
.as_ref()
.and_then(|v| v.to_caps()) {
if let Some(caps) =
streaming_state.video.as_ref().and_then(|v| v.to_caps()) {
streams.push(Stream::new(VIDEO_STREAM_ID, caps, String::from("video")));
}
}
@ -692,9 +697,8 @@ impl FlvDemux {
self.adapter.flush(offset as usize).unwrap();
}
let mut buffer = self.adapter
.get_buffer((tag_header.data_size - 1 - offset) as usize)
.unwrap();
let mut buffer =
self.adapter.get_buffer((tag_header.data_size - 1 - offset) as usize).unwrap();
{
let buffer = buffer.get_mut().unwrap();
@ -847,9 +851,8 @@ impl FlvDemux {
self.adapter.flush(offset as usize).unwrap();
}
let mut buffer = self.adapter
.get_buffer((tag_header.data_size - 1 - offset) as usize)
.unwrap();
let mut buffer =
self.adapter.get_buffer((tag_header.data_size - 1 - offset) as usize).unwrap();
{
let buffer = buffer.get_mut().unwrap();

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

@ -28,16 +28,16 @@ use flvdemux::FlvDemux;
fn plugin_init(plugin: &Plugin) -> bool {
demuxer_register(plugin,
&DemuxerInfo {
name: "rsflvdemux",
long_name: "FLV Demuxer",
description: "Demuxes FLV Streams",
classification: "Codec/Demuxer",
author: "Sebastian Dröge <sebastian@centricular.com>",
rank: 256 + 100,
create_instance: FlvDemux::new_boxed,
input_caps: &Caps::new_simple("video/x-flv", &[]),
output_caps: &Caps::new_any(),
});
name: "rsflvdemux",
long_name: "FLV Demuxer",
description: "Demuxes FLV Streams",
classification: "Codec/Demuxer",
author: "Sebastian Dröge <sebastian@centricular.com>",
rank: 256 + 100,
create_instance: FlvDemux::new_boxed,
input_caps: &Caps::new_simple("video/x-flv", &[]),
output_caps: &Caps::new_any(),
});
true
}

19
gst-plugin-http/src/httpsrc.rs
View file

@ -91,8 +91,7 @@ impl HttpSrc {
let size = response.headers().get().map(|&ContentLength(cl)| cl + start);
let accept_byte_ranges = if let Some(&AcceptRanges(ref ranges)) =
response.headers()
.get() {
response.headers().get() {
ranges.iter().any(|u| *u == RangeUnit::Bytes)
} else {
false
@ -117,14 +116,14 @@ impl HttpSrc {
debug!(self.logger, "Request successful: {:?}", response);
Ok(StreamingState::Started {
uri: uri,
response: response,
seekable: seekable,
position: 0,
size: size,
start: start,
stop: stop,
})
uri: uri,
response: response,
seekable: seekable,
position: 0,
size: size,
start: start,
stop: stop,
})
}
}

14
gst-plugin-http/src/lib.rs
View file

@ -24,15 +24,15 @@ use httpsrc::HttpSrc;
fn plugin_init(plugin: &Plugin) -> bool {
source_register(plugin,
&SourceInfo {
name: "rshttpsrc",
long_name: "HTTP/HTTPS Source",
description: "Reads HTTP/HTTPS streams",
classification: "Source/File",
author: "Sebastian Dröge <sebastian@centricular.com>",
SourceInfo {
name: "rshttpsrc".into(),
long_name: "HTTP/HTTPS Source".into(),
description: "Reads HTTP/HTTPS streams".into(),
classification: "Source/File".into(),
author: "Sebastian Dröge <sebastian@centricular.com>".into(),
rank: 256 + 100,
create_instance: HttpSrc::new_boxed,
protocols: "http:https",
protocols: vec!["http".into(), "https".into()],
push_only: true,
});

1
gst-plugin/Cargo.toml
View file

@ -17,6 +17,7 @@ num-rational = { version = "0.1", default-features = false, features = [] }
glib-sys = { git = "https://github.com/gtk-rs/sys.git" }
gobject-sys = { git = "https://github.com/gtk-rs/sys.git" }
gstreamer-sys = { git = "https://github.com/sdroege/gstreamer-sys.git", features = ["v1_10"] }
gstreamer-base-sys = { git = "https://github.com/sdroege/gstreamer-sys.git", features = ["v1_10"] }
derivative = "1.0"
[build-dependencies]

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/source.c", "src/sink.c", "src/demuxer.c"];
let files = ["src/sink.c", "src/demuxer.c"];
let mut config = gcc::Config::new();
config.include("src");

14
gst-plugin/src/demuxer.rs
View file

@ -247,7 +247,7 @@ impl DemuxerWrapper {
}
}
fn handle_buffer(&self, buffer: GstRc<Buffer>) -> GstFlowReturn {
fn handle_buffer(&self, buffer: GstRc<Buffer>) -> gst::GstFlowReturn {
extern "C" {
fn gst_rs_demuxer_stream_eos(raw: *mut gst::GstElement, index: u32);
fn gst_rs_demuxer_add_stream(raw: *mut gst::GstElement,
@ -262,7 +262,7 @@ impl DemuxerWrapper {
fn gst_rs_demuxer_stream_push_buffer(raw: *mut gst::GstElement,
index: u32,
buffer: *mut gst::GstBuffer)
-> GstFlowReturn;
-> gst::GstFlowReturn;
};
let mut res = {
@ -290,7 +290,7 @@ impl DemuxerWrapper {
match res {
HandleBufferResult::NeedMoreData => {
return GstFlowReturn::Ok;
return gst::GST_FLOW_OK;
}
HandleBufferResult::StreamAdded(stream) => {
let stream_id_cstr = CString::new(stream.stream_id.as_bytes()).unwrap();
@ -323,7 +323,7 @@ impl DemuxerWrapper {
let flow_ret = unsafe {
gst_rs_demuxer_stream_push_buffer(self.raw, index, buffer.into_ptr())
};
if flow_ret != GstFlowReturn::Ok {
if flow_ret != gst::GST_FLOW_OK {
return flow_ret;
}
}
@ -334,7 +334,7 @@ impl DemuxerWrapper {
gst_rs_demuxer_stream_eos(self.raw, index);
}
return GstFlowReturn::Eos;
return gst::GST_FLOW_EOS;
}
HandleBufferResult::Again => {
// nothing, just call again
@ -483,10 +483,10 @@ pub unsafe extern "C" fn demuxer_seek(ptr: *mut DemuxerWrapper,
#[no_mangle]
pub unsafe extern "C" fn demuxer_handle_buffer(ptr: *mut DemuxerWrapper,
buffer: *mut gst::GstBuffer)
-> GstFlowReturn {
-> gst::GstFlowReturn {
let wrap: &mut DemuxerWrapper = &mut *ptr;
panic_to_error!(wrap, GstFlowReturn::Error, {
panic_to_error!(wrap, gst::GST_FLOW_ERROR, {
let buffer = GstRc::new_from_owned_ptr(buffer);
wrap.handle_buffer(buffer)
})

12
gst-plugin/src/error.rs
View file

@ -15,8 +15,6 @@ use std::borrow::Cow;
use url::Url;
use utils::*;
use glib;
use gst;
@ -145,12 +143,12 @@ pub enum FlowError {
}
impl FlowError {
pub fn to_native(&self) -> GstFlowReturn {
pub fn to_native(&self) -> gst::GstFlowReturn {
match *self {
FlowError::Flushing => GstFlowReturn::Flushing,
FlowError::Eos => GstFlowReturn::Eos,
FlowError::NotNegotiated(..) => GstFlowReturn::NotNegotiated,
FlowError::Error(..) => GstFlowReturn::Error,
FlowError::Flushing => gst::GST_FLOW_FLUSHING,
FlowError::Eos => gst::GST_FLOW_EOS,
FlowError::NotNegotiated(..) => gst::GST_FLOW_NOT_NEGOTIATED,
FlowError::Error(..) => gst::GST_FLOW_ERROR,
}
}
}

1
gst-plugin/src/lib.rs
View file

@ -22,6 +22,7 @@ extern crate derivative;
pub extern crate gobject_sys as gobject;
pub extern crate glib_sys as glib;
pub extern crate gstreamer_sys as gst;
pub extern crate gstreamer_base_sys as gst_base;
#[macro_use]
pub mod utils;

2
gst-plugin/src/miniobject.rs
View file

@ -153,7 +153,7 @@ impl<'a, T: MiniObject> From<&'a mut T> for GstRc<T> {
}
#[repr(C)]
pub struct GstRefPtr<T: MiniObject>(*mut T::PtrType);
pub struct GstRefPtr<T: MiniObject>(pub *mut T::PtrType);
#[derive(Hash, Debug, PartialEq, Eq, PartialOrd, Ord)]
pub struct GstRef<'a, T: 'a + MiniObject> {

8
gst-plugin/src/sink.rs
View file

@ -177,13 +177,13 @@ impl SinkWrapper {
}
}
fn render(&self, buffer: &Buffer) -> GstFlowReturn {
fn render(&self, buffer: &Buffer) -> gst::GstFlowReturn {
let sink = &mut self.sink.lock().unwrap();
trace!(self.logger, "Rendering buffer {:?}", buffer);
match sink.render(buffer) {
Ok(..) => GstFlowReturn::Ok,
Ok(..) => gst::GST_FLOW_OK,
Err(flow_error) => {
error!(self.logger, "Failed to render: {:?}", flow_error);
match flow_error {
@ -281,9 +281,9 @@ 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>)
-> GstFlowReturn {
-> gst::GstFlowReturn {
let wrap: &SinkWrapper = &*ptr;
panic_to_error!(wrap, GstFlowReturn::Error, {
panic_to_error!(wrap, gst::GST_FLOW_ERROR, {
let buffer: GstRef<Buffer> = GstRef::new(&buffer);
wrap.render(buffer.as_ref())
})

385
gst-plugin/src/source.c
View file

@ -1,385 +0,0 @@
/* Copyright (C) 2016-2017 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.
*/
#include "source.h"
#include <string.h>
#include <stdint.h>
typedef struct
{
gchar *long_name;
gchar *description;
gchar *classification;
gchar *author;
void *create_instance;
gchar **protocols;
} ElementData;
static GHashTable *sources;
/* Declarations for Rust code */
extern gboolean sources_register (void *plugin);
extern void *source_new (GstRsSrc * source, void *create_instance);
extern void source_drop (void *rssource);
extern GstFlowReturn source_fill (void *rssource, guint64 offset, guint size,
GstBuffer * buffer);
extern gboolean source_seek (void *rssource, uint64_t start, uint64_t stop);
extern gboolean source_set_uri (void *rssource, const char *uri, GError ** err);
extern char *source_get_uri (void *rssource);
extern uint64_t source_get_size (void *rssource);
extern gboolean source_is_seekable (void *rssource);
extern gboolean source_start (void *rssource);
extern gboolean source_stop (void *rssource);
extern void cstring_drop (void *str);
GST_DEBUG_CATEGORY_STATIC (gst_rs_src_debug);
#define GST_CAT_DEFAULT gst_rs_src_debug
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
enum
{
PROP_0,
PROP_URI
};
static void gst_rs_src_uri_handler_init (gpointer g_iface, gpointer iface_data);
static void gst_rs_src_finalize (GObject * object);
static void gst_rs_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rs_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_rs_src_start (GstBaseSrc * basesrc);
static gboolean gst_rs_src_stop (GstBaseSrc * basesrc);
static gboolean gst_rs_src_is_seekable (GstBaseSrc * src);
static gboolean gst_rs_src_get_size (GstBaseSrc * src, guint64 * size);
static GstFlowReturn gst_rs_src_fill (GstBaseSrc * src, guint64 offset,
guint length, GstBuffer * buf);
static gboolean gst_rs_src_do_seek (GstBaseSrc * src, GstSegment * segment);
static GObjectClass *parent_class;
static void
gst_rs_src_class_init (GstRsSrcClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSrcClass *gstbasesrc_class;
ElementData *data = g_hash_table_lookup (sources,
GSIZE_TO_POINTER (G_TYPE_FROM_CLASS (klass)));
g_assert (data != NULL);
gobject_class = G_OBJECT_CLASS (klass);
gstelement_class = GST_ELEMENT_CLASS (klass);
gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
gobject_class->set_property = gst_rs_src_set_property;
gobject_class->get_property = gst_rs_src_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));
gobject_class->finalize = gst_rs_src_finalize;
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, &src_template);
gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_rs_src_start);
gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_rs_src_stop);
gstbasesrc_class->is_seekable = GST_DEBUG_FUNCPTR (gst_rs_src_is_seekable);
gstbasesrc_class->get_size = GST_DEBUG_FUNCPTR (gst_rs_src_get_size);
gstbasesrc_class->fill = GST_DEBUG_FUNCPTR (gst_rs_src_fill);
gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_rs_src_do_seek);
}
static void
gst_rs_src_init (GstRsSrc * src, GstRsSrcClass * klass)
{
ElementData *data = g_hash_table_lookup (sources,
GSIZE_TO_POINTER (G_TYPE_FROM_CLASS (klass)));
g_assert (data != NULL);
gst_base_src_set_blocksize (GST_BASE_SRC (src), 4096);
GST_DEBUG_OBJECT (src, "Instantiating");
src->instance = source_new (src, data->create_instance);
}
static void
gst_rs_src_finalize (GObject * object)
{
GstRsSrc *src = GST_RS_SRC (object);
GST_DEBUG_OBJECT (src, "Finalizing");
source_drop (src->instance);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_rs_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRsSrc *src = GST_RS_SRC (object);
switch (prop_id) {
case PROP_URI:
source_set_uri (src->instance, g_value_get_string (value), NULL);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_rs_src_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRsSrc *src = GST_RS_SRC (object);
switch (prop_id) {
case PROP_URI:{
gchar *str = source_get_uri (src->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_src_fill (GstBaseSrc * basesrc, guint64 offset, guint length,
GstBuffer * buf)
{
GstRsSrc *src = GST_RS_SRC (basesrc);
GstFlowReturn ret;
GST_TRACE_OBJECT (src,
"Filling buffer %p, offset %" G_GUINT64_FORMAT " and length %"
G_GUINT64_FORMAT, *buf, offset, length);
ret = source_fill (src->instance, offset, length, buf);
GST_TRACE_OBJECT (src, "Filled buffer: %s", gst_flow_get_name (ret));
return ret;
}
static gboolean
gst_rs_src_is_seekable (GstBaseSrc * basesrc)
{
GstRsSrc *src = GST_RS_SRC (basesrc);
gboolean res;
res = source_is_seekable (src->instance);
GST_DEBUG_OBJECT (src, "Returning seekable %d", res);
}
static gboolean
gst_rs_src_get_size (GstBaseSrc * basesrc, guint64 * size)
{
GstRsSrc *src = GST_RS_SRC (basesrc);
*size = source_get_size (src->instance);
GST_DEBUG_OBJECT (src, "Returning size %" G_GUINT64_FORMAT, *size);
return TRUE;
}
/* open the rs, necessary to go to READY state */
static gboolean
gst_rs_src_start (GstBaseSrc * basesrc)
{
GstRsSrc *src = GST_RS_SRC (basesrc);
GST_DEBUG_OBJECT (src, "Starting");
return source_start (src->instance);
}
static gboolean
gst_rs_src_stop (GstBaseSrc * basesrc)
{
GstRsSrc *src = GST_RS_SRC (basesrc);
GST_DEBUG_OBJECT (src, "Stopping");
/* Ignore stop failures */
source_stop (src->instance);
return TRUE;
}
static gboolean
gst_rs_src_do_seek (GstBaseSrc * basesrc, GstSegment * segment)
{
GstRsSrc *src = GST_RS_SRC (basesrc);
gboolean ret;
GST_DEBUG_OBJECT (src, "Seeking to %" GST_TIME_FORMAT "-%" GST_TIME_FORMAT,
GST_TIME_ARGS (segment->start), GST_TIME_ARGS (segment->stop));
ret = source_seek (src->instance, segment->start, segment->stop);
if (!ret) {
GST_DEBUG_OBJECT (src, "Failed to seek");
return FALSE;
}
return GST_BASE_SRC_CLASS (parent_class)->do_seek (basesrc, segment);
}
static GstURIType
gst_rs_src_uri_get_type (GType type)
{
return GST_URI_SRC;
}
static const gchar *const *
gst_rs_src_uri_get_protocols (GType type)
{
ElementData *data = g_hash_table_lookup (sources, GSIZE_TO_POINTER (type));
g_assert (data != NULL);
return (const gchar * const *) data->protocols;
}
static gchar *
gst_rs_src_uri_get_uri (GstURIHandler * handler)
{
GstRsSrc *src = GST_RS_SRC (handler);
gchar *res;
res = source_get_uri (src->instance);
GST_DEBUG_OBJECT (src, "Returning URI %s", res);
return res;
}
static gboolean
gst_rs_src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
GError ** err)
{
GstRsSrc *src = GST_RS_SRC (handler);
GST_DEBUG_OBJECT (src, "Setting URI %s", uri);
if (!source_set_uri (src->instance, uri, err)) {
GST_ERROR_OBJECT (src, "Failed to set URI: %s", (*err)->message);
return FALSE;
}
return TRUE;
}
static void
gst_rs_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
{
GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
iface->get_type = gst_rs_src_uri_get_type;
iface->get_protocols = gst_rs_src_uri_get_protocols;
iface->get_uri = gst_rs_src_uri_get_uri;
iface->set_uri = gst_rs_src_uri_set_uri;
}
static gpointer
gst_rs_source_init_class (gpointer data)
{
sources = g_hash_table_new (g_direct_hash, g_direct_equal);
GST_DEBUG_CATEGORY_INIT (gst_rs_src_debug, "rssrc", 0,
"Rust source base class");
parent_class = g_type_class_ref (GST_TYPE_BASE_SRC);
return NULL;
}
gboolean
gst_rs_source_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, gboolean push_only)
{
static GOnce gonce = G_ONCE_INIT;
GTypeInfo type_info = {
sizeof (GstRsSrcClass),
NULL,
NULL,
(GClassInitFunc) gst_rs_src_class_init,
NULL,
NULL,
sizeof (GstRsSrc),
0,
(GInstanceInitFunc) gst_rs_src_init
};
GInterfaceInfo iface_info = {
gst_rs_src_uri_handler_init,
NULL,
NULL
};
GType type;
gchar *type_name;
ElementData *data;
g_once (&gonce, gst_rs_source_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);
GST_DEBUG (" push only: %d", push_only);
data = g_new0 (ElementData, 1);
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 ("RsSrc-", name, NULL);
type =
g_type_register_static (push_only ? GST_TYPE_PUSH_SRC : GST_TYPE_BASE_SRC,
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 (sources, GSIZE_TO_POINTER (type), data);
if (!gst_element_register (plugin, name, rank, type))
return FALSE;
return TRUE;
}

49
gst-plugin/src/source.h
View file

@ -1,49 +0,0 @@
/* Copyright (C) 2016 Sebastian Dröge <sebastian@centricular.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_SRC_H__
#define __GST_RS_SRC_H__
#include <gst/gst.h>
#include <gst/base/base.h>
G_BEGIN_DECLS
#define GST_RS_SRC(obj) \
((GstRsSrc *)obj)
#define GST_RS_SRC_CLASS(klass) \
((GstRsSrcKlass *)klass)
typedef struct _GstRsSrc GstRsSrc;
typedef struct _GstRsSrcClass GstRsSrcClass;
struct _GstRsSrc {
GstPushSrc element;
gpointer instance;
};
struct _GstRsSrcClass {
GstPushSrcClass parent_class;
};
G_GNUC_INTERNAL gboolean gst_rs_source_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RS_SRC_H__ */

368
gst-plugin/src/source.rs
View file

@ -7,9 +7,9 @@
// 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::u64;
use std::panic::{self, AssertUnwindSafe};
@ -27,9 +27,12 @@ use error::*;
use buffer::*;
use miniobject::*;
use log::*;
use caps::*;
use glib;
use gobject;
use gst;
use gst_base;
#[derive(Debug)]
pub enum SourceError {
@ -190,7 +193,7 @@ impl SourceWrapper {
}
}
fn fill(&self, offset: u64, length: u32, buffer: &mut Buffer) -> GstFlowReturn {
fn fill(&self, offset: u64, length: u32, buffer: &mut Buffer) -> gst::GstFlowReturn {
let source = &mut self.source.lock().unwrap();
trace!(self.logger,
@ -200,7 +203,7 @@ impl SourceWrapper {
length);
match source.fill(offset, length, buffer) {
Ok(()) => GstFlowReturn::Ok,
Ok(()) => gst::GST_FLOW_OK,
Err(flow_error) => {
error!(self.logger, "Failed to fill: {:?}", flow_error);
match flow_error {
@ -235,26 +238,12 @@ impl SourceWrapper {
}
}
#[no_mangle]
pub unsafe extern "C" fn source_new(source: *mut gst::GstElement,
create_instance: fn(Element) -> Box<Source>)
-> *mut SourceWrapper {
let instance = create_instance(Element::new(source));
Box::into_raw(Box::new(SourceWrapper::new(source, instance)))
}
#[no_mangle]
pub unsafe extern "C" fn source_drop(ptr: *mut SourceWrapper) {
let _ = Box::from_raw(ptr);
}
#[no_mangle]
pub unsafe extern "C" fn source_set_uri(ptr: *const SourceWrapper,
uri_ptr: *const c_char,
cerr: *mut *mut glib::GError)
-> glib::gboolean {
let wrap: &SourceWrapper = &*ptr;
unsafe fn source_set_uri(ptr: *const RsSrc,
uri_ptr: *const c_char,
cerr: *mut *mut glib::GError)
-> glib::gboolean {
let src = &*(ptr as *const RsSrc);
let wrap: &SourceWrapper = &*src.wrap;
panic_to_error!(wrap, glib::GFALSE, {
let uri_str = if uri_ptr.is_null() {
@ -274,20 +263,21 @@ pub unsafe extern "C" fn source_set_uri(ptr: *const SourceWrapper,
})
}
#[no_mangle]
pub unsafe extern "C" fn source_get_uri(ptr: *const SourceWrapper) -> *mut c_char {
let wrap: &SourceWrapper = &*ptr;
unsafe fn source_get_uri(ptr: *const RsSrc) -> *mut c_char {
let src = &*(ptr as *const RsSrc);
let wrap: &SourceWrapper = &*src.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 source_is_seekable(ptr: *const SourceWrapper) -> glib::gboolean {
let wrap: &SourceWrapper = &*ptr;
unsafe extern "C" fn source_is_seekable(ptr: *mut gst_base::GstBaseSrc) -> glib::gboolean {
let src = &*(ptr as *const RsSrc);
let wrap: &SourceWrapper = &*src.wrap;
panic_to_error!(wrap, glib::GFALSE, {
if wrap.is_seekable() {
@ -298,17 +288,21 @@ pub unsafe extern "C" fn source_is_seekable(ptr: *const SourceWrapper) -> glib::
})
}
#[no_mangle]
pub unsafe extern "C" fn source_get_size(ptr: *const SourceWrapper) -> u64 {
let wrap: &SourceWrapper = &*ptr;
panic_to_error!(wrap, u64::MAX, {
wrap.get_size()
unsafe extern "C" fn source_get_size(ptr: *mut gst_base::GstBaseSrc,
size: *mut u64)
-> glib::gboolean {
let src = &*(ptr as *const RsSrc);
let wrap: &SourceWrapper = &*src.wrap;
panic_to_error!(wrap, glib::GFALSE, {
*size = wrap.get_size();
glib::GTRUE
})
}
#[no_mangle]
pub unsafe extern "C" fn source_start(ptr: *const SourceWrapper) -> glib::gboolean {
let wrap: &SourceWrapper = &*ptr;
unsafe extern "C" fn source_start(ptr: *mut gst_base::GstBaseSrc) -> glib::gboolean {
let src = &*(ptr as *const RsSrc);
let wrap: &SourceWrapper = &*src.wrap;
panic_to_error!(wrap, glib::GFALSE, {
if wrap.start() {
@ -319,9 +313,9 @@ pub unsafe extern "C" fn source_start(ptr: *const SourceWrapper) -> glib::gboole
})
}
#[no_mangle]
pub unsafe extern "C" fn source_stop(ptr: *const SourceWrapper) -> glib::gboolean {
let wrap: &SourceWrapper = &*ptr;
unsafe extern "C" fn source_stop(ptr: *mut gst_base::GstBaseSrc) -> glib::gboolean {
let src = &*(ptr as *const RsSrc);
let wrap: &SourceWrapper = &*src.wrap;
panic_to_error!(wrap, glib::GTRUE, {
if wrap.stop() {
@ -332,26 +326,29 @@ pub unsafe extern "C" fn source_stop(ptr: *const SourceWrapper) -> glib::gboolea
})
}
#[no_mangle]
pub unsafe extern "C" fn source_fill(ptr: *const SourceWrapper,
offset: u64,
length: u32,
buffer: GstRefPtr<Buffer>)
-> GstFlowReturn {
let wrap: &SourceWrapper = &*ptr;
unsafe extern "C" fn source_fill(ptr: *mut gst_base::GstBaseSrc,
offset: u64,
length: u32,
buffer: *mut gst::GstBuffer)
-> gst::GstFlowReturn {
let src = &*(ptr as *const RsSrc);
let wrap: &SourceWrapper = &*src.wrap;
let buffer = GstRefPtr(buffer);
panic_to_error!(wrap, GstFlowReturn::Error, {
panic_to_error!(wrap, gst::GST_FLOW_ERROR, {
let mut buffer: GstRef<Buffer> = GstRef::new(&buffer);
wrap.fill(offset, length, buffer.get_mut().unwrap())
})
}
#[no_mangle]
pub unsafe extern "C" fn source_seek(ptr: *const SourceWrapper,
start: u64,
stop: u64)
-> glib::gboolean {
let wrap: &SourceWrapper = &*ptr;
unsafe extern "C" fn source_seek(ptr: *mut gst_base::GstBaseSrc,
segment: *mut gst::GstSegment)
-> glib::gboolean {
let src = &*(ptr as *const RsSrc);
let wrap: &SourceWrapper = &*src.wrap;
let start = (*segment).start;
let stop = (*segment).stop;
panic_to_error!(wrap, glib::GFALSE, {
if wrap.seek(start, if stop == u64::MAX { None } else { Some(stop) }) {
@ -362,55 +359,230 @@ pub unsafe extern "C" fn source_seek(ptr: *const SourceWrapper,
})
}
pub struct SourceInfo<'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 SourceInfo {
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<Source>,
pub protocols: &'a str,
pub protocols: Vec<String>,
pub push_only: bool,
}
pub fn source_register(plugin: &Plugin, source_info: &SourceInfo) {
#[repr(C)]
struct RsSrc {
parent: gst_base::GstPushSrc,
wrap: *mut SourceWrapper,
source_info: *const SourceInfo,
}
extern "C" {
fn gst_rs_source_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,
push_only: glib::gboolean)
-> glib::gboolean;
}
#[repr(C)]
struct RsSrcClass {
parent_class: gst_base::GstPushSrcClass,
source_info: *const SourceInfo,
protocols: *const Vec<*const c_char>,
parent_vtable: glib::gconstpointer,
}
let cname = CString::new(source_info.name).unwrap();
let clong_name = CString::new(source_info.long_name).unwrap();
let cdescription = CString::new(source_info.description).unwrap();
let cclassification = CString::new(source_info.classification).unwrap();
let cauthor = CString::new(source_info.author).unwrap();
let cprotocols = CString::new(source_info.protocols).unwrap();
unsafe extern "C" fn source_finalize(obj: *mut gobject::GObject) {
let src = &mut *(obj as *mut RsSrc);
unsafe {
gst_rs_source_register(plugin.as_ptr(),
cname.as_ptr(),
clong_name.as_ptr(),
cdescription.as_ptr(),
cclassification.as_ptr(),
cauthor.as_ptr(),
source_info.rank,
source_info.create_instance as *const c_void,
cprotocols.as_ptr(),
if source_info.push_only {
glib::GTRUE
} else {
glib::GFALSE
});
drop(Box::from_raw(src.wrap));
let src_klass = &**(obj as *const *const RsSrcClass);
let parent_klass = &*(src_klass.parent_vtable as *const gobject::GObjectClass);
parent_klass.finalize.map(|f| f(obj));
}
unsafe extern "C" fn source_set_property(obj: *mut gobject::GObject,
id: u32,
value: *mut gobject::GValue,
_pspec: *mut gobject::GParamSpec) {
let src = &*(obj as *const RsSrc);
match id {
1 => {
let uri_ptr = gobject::g_value_get_string(value);
source_set_uri(src, uri_ptr, ptr::null_mut());
}
_ => unreachable!(),
}
}
unsafe extern "C" fn source_get_property(obj: *mut gobject::GObject,
id: u32,
value: *mut gobject::GValue,
_pspec: *mut gobject::GParamSpec) {
let src = &*(obj as *const RsSrc);
match id {
1 => {
let uri_ptr = source_get_uri(src);
gobject::g_value_take_string(value, uri_ptr);
}
_ => unreachable!(),
}
}
unsafe extern "C" fn source_class_init(klass: glib::gpointer, klass_data: glib::gpointer) {
let src_klass = &mut *(klass as *mut RsSrcClass);
let source_info = &*(klass_data as *const SourceInfo);
{
let gobject_klass = &mut src_klass.parent_class
.parent_class
.parent_class
.parent_class
.parent_class;
gobject_klass.set_property = Some(source_set_property);
gobject_klass.get_property = Some(source_get_property);
gobject_klass.finalize = Some(source_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 element_klass = &mut src_klass.parent_class.parent_class.parent_class;
let longname_cstr = CString::new(source_info.long_name.clone()).unwrap();
let classification_cstr = CString::new(source_info.description.clone()).unwrap();
let description_cstr = CString::new(source_info.classification.clone()).unwrap();
let author_cstr = CString::new(source_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("src").unwrap();
let pad_template = gst::gst_pad_template_new(templ_name.into_raw(),
gst::GST_PAD_SRC,
gst::GST_PAD_ALWAYS,
caps.as_ptr());
gst::gst_element_class_add_pad_template(element_klass, pad_template);
}
{
let basesrc_klass = &mut src_klass.parent_class.parent_class;
basesrc_klass.start = Some(source_start);
basesrc_klass.stop = Some(source_stop);
basesrc_klass.is_seekable = Some(source_is_seekable);
basesrc_klass.get_size = Some(source_get_size);
basesrc_klass.fill = Some(source_fill);
basesrc_klass.do_seek = Some(source_seek);
}
src_klass.source_info = source_info;
let mut protocols = Box::new(Vec::with_capacity(source_info.protocols.len()));
for p in &source_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());
src_klass.protocols = Box::into_raw(protocols) as *const Vec<*const c_char>;
src_klass.parent_vtable = gobject::g_type_class_peek_parent(klass);
}
unsafe extern "C" fn source_init(instance: *mut gobject::GTypeInstance, klass: glib::gpointer) {
let src = &mut *(instance as *mut RsSrc);
let src_klass = &*(klass as *const RsSrcClass);
let source_info = &*src_klass.source_info;
src.source_info = source_info;
let wrap = Box::new(SourceWrapper::new(&mut src.parent.parent.element,
(source_info.create_instance)(Element::new(&mut src.parent.parent.element))));
src.wrap = Box::into_raw(wrap);
gst_base::gst_base_src_set_blocksize(&mut src.parent.parent, 4096);
}
unsafe extern "C" fn source_uri_handler_get_type(_type: glib::GType) -> gst::GstURIType {
gst::GST_URI_SRC
}
unsafe extern "C" fn source_uri_handler_get_protocols(type_: glib::GType) -> *const *const c_char {
let klass = gobject::g_type_class_peek(type_);
let src_klass = &*(klass as *const RsSrcClass);
(*src_klass.protocols).as_ptr()
}
unsafe extern "C" fn source_uri_handler_get_uri(uri_handler: *mut gst::GstURIHandler)
-> *mut c_char {
source_get_uri(uri_handler as *const RsSrc)
}
unsafe extern "C" fn source_uri_handler_set_uri(uri_handler: *mut gst::GstURIHandler,
uri: *const c_char,
err: *mut *mut glib::GError)
-> glib::gboolean {
source_set_uri(uri_handler as *const RsSrc, uri, err)
}
unsafe extern "C" fn source_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(source_uri_handler_get_type);
uri_handler_iface.get_protocols = Some(source_uri_handler_get_protocols);
uri_handler_iface.get_uri = Some(source_uri_handler_get_uri);
uri_handler_iface.set_uri = Some(source_uri_handler_set_uri);
}
pub fn source_register(plugin: &Plugin, source_info: SourceInfo) {
unsafe {
let parent_type = if source_info.push_only {
gst_base::gst_push_src_get_type()
} else {
gst_base::gst_base_src_get_type()
};
let mut type_name = String::from("RsSrc-");
type_name.push_str(&source_info.name);
let type_name_cstr = CString::new(type_name.into_bytes()).unwrap();
let name_cstr = CString::new(source_info.name.clone().into_bytes()).unwrap();
let rank = source_info.rank;
let source_info = Box::new(source_info);
let source_info_ptr = Box::into_raw(source_info) as glib::gpointer;
let type_info = gobject::GTypeInfo {
class_size: mem::size_of::<RsSrcClass>() as u16,
base_init: None,
base_finalize: None,
class_init: Some(source_class_init),
class_finalize: None,
class_data: source_info_ptr,
instance_size: mem::size_of::<RsSrc>() as u16,
n_preallocs: 0,
instance_init: Some(source_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(source_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_);
}
}

11
gst-plugin/src/utils.rs
View file

@ -13,17 +13,6 @@ use num_rational::Rational32;
use gst;
#[repr(C)]
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum GstFlowReturn {
Ok = 0,
NotLinked = -1,
Flushing = -2,
Eos = -3,
NotNegotiated = -4,
Error = -5,
}
pub struct Element(*mut gst::GstElement);
impl Element {