Initial commit

Signed-off-by: Richard Weinberger <richard@nod.at>

14 files changed, 1268 insertions, 0 deletions

diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..d159169
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
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+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..de730db
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,17 @@
+[package]
+name = "geschichte"
+version = "0.1.0"
+edition = "2018"
+include = [
+	"**/*.rs",
+	"Cargo.toml",
+]
+
+[dependencies]
+libc = "0.2"
+toml = "0.5"
+serde = { version = "1.0", features = ["derive"] }
+rand = "0.8.4"
+
+[build-dependencies]
+bindgen = "*"
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..68a3f3c
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,19 @@
+extern crate bindgen;
+
+use std::env;
+use std::path::PathBuf;
+
+fn main() {
+	let bindings = bindgen::Builder::default()
+		.header("linux_input_wrapper.h")
+		.allowlist_type("input_event")
+		.allowlist_var("KEY_.*")
+		.allowlist_var("EV_.*")
+		.generate()
+		.expect("Unable to generate bindings");
+
+	let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
+
+	bindings.write_to_file(out_path.join("bindings.rs"))
+		.expect("Couldn't write bindings!");
+}
diff --git a/geschichte.toml b/geschichte.toml
new file mode 100644
index 0000000..3edf8a3
--- /dev/null
+++ b/geschichte.toml
@@ -0,0 +1,48 @@
+[base]
+backend = "vlc_rc"
+inputdev = "/dev/input/by-path/pci-0000:00:14.0-usb-0:1:1.0-event-kbd"
+
+[backendconfig]
+addr = "localhost:8888"
+
+# see /usr/include/linux/input-event-codes.h
+[keymap]
+play = 207
+stop = 128
+pause = 119
+volup = 115
+voldown = 114
+next = 407
+prev = 412
+
+[[playlist]]
+name = "red"
+source = "/mnt/geschichten/red"
+program = "linear"
+# KEY_RED
+keycode = 398
+extra = { num_play = "1" }
+
+[[playlist]]
+name = "green"
+source = "/mnt/geschichten/green"
+program = "linear"
+# KEY_GREEN
+keycode = 399
+extra = { num_play = "3" }
+
+[[playlist]]
+name = "yellow"
+source = "/mnt/geschichten/yellow"
+program = "shuffle"
+# KEY_YELLOW
+keycode = 400
+extra = { num_play = "3" }
+
+[[playlist]]
+name = "blue"
+source = "/mnt/geschichten/blue"
+program = "random"
+# KEY_BLUE
+keycode = 401
+extra = { num_play = "2" }
diff --git a/linux_input_wrapper.h b/linux_input_wrapper.h
new file mode 100644
index 0000000..8eb6c02
--- /dev/null
+++ b/linux_input_wrapper.h
@@ -0,0 +1 @@
+#include <linux/input.h>
diff --git a/rustfmt.toml b/rustfmt.toml
new file mode 100644
index 0000000..218e203
--- /dev/null
+++ b/rustfmt.toml
@@ -0,0 +1 @@
+hard_tabs = true
diff --git a/src/config.rs b/src/config.rs
new file mode 100644
index 0000000..14424ac
--- /dev/null
+++ b/src/config.rs
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Copyright (C) 2021, Richard Weinberger <richard@nod.at>
+ */
+
+use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
+use std::fs;
+
+#[derive(Serialize, Deserialize)]
+pub struct PlayListConfig {
+	pub name: String,
+	pub source: String,
+	pub program: String,
+	pub keycode: u32,
+	#[serde(default)]
+	pub extra: HashMap<String, String>,
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct PlayerConfig {
+	pub base: HashMap<String, String>,
+	pub keymap: HashMap<String, u32>,
+	pub backendconfig: HashMap<String, String>,
+	pub playlist: Vec<PlayListConfig>,
+}
+
+pub fn init_cfg() -> Option<PlayerConfig> {
+	let cfg_text = match fs::read_to_string("geschichte.toml") {
+		Err(e) => {
+			eprintln!("Unable to read geschichte.toml: {}", e);
+			return None;
+		}
+		Ok(v) => v,
+	};
+
+	match toml::from_str(&cfg_text) {
+		Err(e) => {
+			eprintln!("Unable to parse config file: {}", e);
+			None
+		}
+		Ok(cfg) => Some(cfg),
+	}
+}
diff --git a/src/linux_inputdev.rs b/src/linux_inputdev.rs
new file mode 100644
index 0000000..f38ede3
--- /dev/null
+++ b/src/linux_inputdev.rs
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Copyright (C) 2021, Richard Weinberger <richard@nod.at>
+ */
+
+#![allow(dead_code)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+#![allow(non_upper_case_globals)]
+include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
+
+use std::fs::OpenOptions;
+use std::io;
+use std::io::Read;
+use std::os::unix::fs::OpenOptionsExt;
+use std::os::unix::io::AsRawFd;
+
+use crate::poll;
+
+pub trait InputEventRecv {
+	fn consume_input(&mut self, code: u32, value: i32) -> io::Result<bool>;
+}
+
+pub fn do_events(inputdev: &str, ier: &mut dyn InputEventRecv) -> io::Result<()> {
+	let mut input = OpenOptions::new()
+		.read(true)
+		.custom_flags(libc::O_NONBLOCK)
+		.open(&inputdev)?;
+
+	let struct_size = std::mem::size_of::<input_event>();
+	let mut buffer = vec![0; struct_size];
+
+	loop {
+		let revents = poll::single_poll(input.as_raw_fd(), libc::POLLIN | libc::POLLPRI)?;
+		if revents == 0 {
+			continue;
+		}
+
+		input.read_exact(&mut buffer)?;
+
+		let s: input_event = unsafe { std::ptr::read(buffer.as_ptr() as *const _) };
+
+		let ev_type: u32 = s.type_ as u32;
+		if ev_type == EV_KEY {
+			match ier.consume_input(s.code as u32, s.value as i32) {
+				Ok(v) => {
+					if v == false {
+						return Ok(());
+					}
+				}
+				Err(e) => {
+					return Err(e);
+				}
+			}
+		}
+	}
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..e47a3af
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Copyright (C) 2021, Richard Weinberger <richard@nod.at>
+ */
+
+mod config;
+mod linux_inputdev;
+mod player;
+mod playerbackend;
+mod playprogram;
+mod poll;
+mod vlc;
+
+use crate::player::Player;
+
+fn main() {
+	let mut player = Player::new().unwrap_or_else(|| {
+		eprintln!("Unable to initialize player");
+		std::process::exit(1);
+	});
+
+	let input_file = player
+		.cfg
+		.base
+		.get("inputdev")
+		.unwrap_or_else(|| {
+			eprintln!("No inputdev in base section configured!");
+			std::process::exit(1);
+		})
+		.clone();
+
+	match linux_inputdev::do_events(&input_file, &mut player) {
+		Err(e) => {
+			eprintln!("Error while processing input events: {}", e);
+			std::process::exit(1);
+		}
+		Ok(_) => {
+			std::process::exit(0);
+		}
+	}
+}
diff --git a/src/player.rs b/src/player.rs
new file mode 100644
index 0000000..e4fccb0
--- /dev/null
+++ b/src/player.rs
@@ -0,0 +1,244 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Copyright (C) 2021, Richard Weinberger <richard@nod.at>
+ */
+
+use std::cell::RefCell;
+use std::collections::HashMap;
+use std::io;
+use std::rc::Rc;
+use std::rc::Weak;
+
+use crate::config;
+use crate::linux_inputdev;
+use crate::playerbackend::PlayerBackend;
+use crate::playprogram::{Linear, PlayProgram, Random, Shuffle};
+use crate::vlc;
+
+#[derive(Clone)]
+enum PlayerAction {
+	Play,
+	Stop,
+	Pause,
+	Next,
+	Prev,
+	VolUp,
+	VolDown,
+	SwitchProgram(Box<String>),
+}
+
+pub struct Player {
+	programs: HashMap<String, Rc<RefCell<dyn PlayProgram>>>,
+	cur: Option<Weak<RefCell<dyn PlayProgram>>>,
+	actions: HashMap<u32, PlayerAction>,
+	backend: Box<dyn PlayerBackend>,
+	pub cfg: config::PlayerConfig,
+}
+
+fn new_player() -> Option<Player> {
+	let cfg = match config::init_cfg() {
+		None => {
+			eprintln!("Unable to continue, config file is missing");
+			return None;
+		}
+		Some(cfg) => cfg,
+	};
+
+	let backend_name = match cfg.base.get("backend") {
+		None => {
+			eprintln!("Unable to continue, no backend configured");
+			return None;
+		}
+		Some(name) => name,
+	};
+
+	let backend = match backend_name.as_str() {
+		"vlc_rc" => {
+			let vlc = vlc::BackendVlc::new(&cfg);
+
+			if vlc.is_none() {
+				eprintln!("Unable to continue, backend init failed");
+				return None;
+			}
+
+			vlc.unwrap()
+		}
+		_ => {
+			eprintln!("Unable to continue, Unknown backend: {}", backend_name);
+			return None;
+		}
+	};
+
+	let mut programs: HashMap<String, Rc<RefCell<dyn PlayProgram>>> = HashMap::new();
+	let mut actions: HashMap<u32, PlayerAction> = HashMap::new();
+
+	for (keyaction, keycode) in &cfg.keymap {
+		match keyaction.as_ref() {
+			"play" => {
+				actions.insert(*keycode, PlayerAction::Play);
+			}
+			"stop" => {
+				actions.insert(*keycode, PlayerAction::Stop);
+			}
+			"pause" => {
+				actions.insert(*keycode, PlayerAction::Pause);
+			}
+			"volup" => {
+				actions.insert(*keycode, PlayerAction::VolUp);
+			}
+			"voldown" => {
+				actions.insert(*keycode, PlayerAction::VolDown);
+			}
+			"next" => {
+				actions.insert(*keycode, PlayerAction::Next);
+			}
+			"prev" => {
+				actions.insert(*keycode, PlayerAction::Prev);
+			}
+			_ => {
+				eprintln!("Unknown action: {}", keyaction);
+				return None;
+			}
+		}
+	}
+
+	for p in &cfg.playlist {
+		match p.program.as_ref() {
+			"linear" => {
+				let pl = match Linear::new(p) {
+					Err(e) => {
+						eprintln!("Unable to init linear playlist program {}: {}", p.name, e);
+						return None;
+					}
+					Ok(v) => v,
+				};
+
+				let prg = Rc::new(RefCell::new(pl));
+				programs.insert(p.name.clone(), prg);
+			}
+			"shuffle" => {
+				let pl = match Shuffle::new(p) {
+					Err(e) => {
+						eprintln!("Unable to init shuffle playlist program {}: {}", p.name, e);
+						return None;
+					}
+					Ok(v) => v,
+				};
+
+				let prg = Rc::new(RefCell::new(pl));
+				programs.insert(p.name.clone(), prg);
+			}
+			"random" => {
+				let pl = match Random::new(p) {
+					Err(e) => {
+						eprintln!("Unable to init random playlist program {}: {}", p.name, e);
+						return None;
+					}
+					Ok(v) => v,
+				};
+
+				let prg = Rc::new(RefCell::new(pl));
+				programs.insert(p.name.clone(), prg);
+			}
+			_ => {
+				eprintln!("Unknown playlist program program: {}", p.name);
+				return None;
+			}
+		};
+
+		actions.insert(
+			p.keycode,
+			PlayerAction::SwitchProgram(Box::new(String::from(&p.name))),
+		);
+	}
+
+	Some(Player {
+		programs: programs,
+		cur: None,
+		actions: actions,
+		backend: Box::new(backend),
+		cfg: cfg,
+	})
+}
+
+impl Player {
+	pub fn new() -> Option<Player> {
+		new_player()
+	}
+
+	fn next(&mut self) -> io::Result<()> {
+		if let Some(cur_weak) = &self.cur {
+			let cur_rc = Weak::upgrade(cur_weak).unwrap();
+			let mut cur = cur_rc.borrow_mut();
+			cur.next(&mut (*self.backend))?;
+		}
+
+		Ok(())
+	}
+
+	fn prev(&mut self) -> io::Result<()> {
+		if let Some(cur_weak) = &self.cur {
+			let cur_rc = Weak::upgrade(cur_weak).unwrap();
+			let mut cur = cur_rc.borrow_mut();
+			cur.prev(&mut (*self.backend))?;
+		}
+
+		Ok(())
+	}
+
+	fn set_program(&mut self, name: &str) -> io::Result<()> {
+		if let Some(prog_rc) = self.programs.get(name) {
+			self.cur = Some(Rc::<RefCell<dyn PlayProgram>>::downgrade(prog_rc));
+		}
+
+		if let Some(cur_weak) = &self.cur {
+			let cur_rc = Weak::upgrade(cur_weak).unwrap();
+			let mut cur = cur_rc.borrow_mut();
+			cur.start(&mut (*self.backend))?;
+		}
+
+		Ok(())
+	}
+}
+
+impl linux_inputdev::InputEventRecv for Player {
+	fn consume_input(&mut self, code: u32, value: i32) -> io::Result<bool> {
+		if value != 1 {
+			return Ok(true);
+		}
+
+		if let Some(action) = self.actions.get(&code) {
+			let action2 = action.clone();
+			match action2 {
+				PlayerAction::Play => {
+					self.backend.play()?;
+				}
+				PlayerAction::Stop => {
+					self.backend.stop()?;
+				}
+				PlayerAction::Next => {
+					self.next()?;
+				}
+				PlayerAction::Prev => {
+					self.prev()?;
+				}
+				PlayerAction::VolUp => {
+					self.backend.volume_up()?;
+				}
+				PlayerAction::VolDown => {
+					self.backend.volume_down()?;
+				}
+				PlayerAction::Pause => {
+					self.backend.pause()?;
+				}
+				PlayerAction::SwitchProgram(name) => {
+					self.set_program(&name.clone())?;
+				}
+			}
+		} else {
+			println!("No action found for key code {}", code);
+		}
+
+		Ok(true)
+	}
+}
diff --git a/src/playerbackend.rs b/src/playerbackend.rs
new file mode 100644
index 0000000..e1adda7
--- /dev/null
+++ b/src/playerbackend.rs
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Copyright (C) 2021, Richard Weinberger <richard@nod.at>
+ */
+
+use std::io;
+use std::path::PathBuf;
+
+pub trait PlayerBackend {
+	fn set_volume(&mut self, vol: u32) -> io::Result<()>;
+	fn volume_up(&mut self) -> io::Result<()>;
+	fn volume_down(&mut self) -> io::Result<()>;
+	fn pause(&mut self) -> io::Result<()>;
+	fn stop(&mut self) -> io::Result<()>;
+	fn play(&mut self) -> io::Result<()>;
+	fn play_single_file(&mut self, file: &PathBuf) -> io::Result<()>;
+	fn play_multiple_files(&mut self, files: Vec<&PathBuf>) -> io::Result<()>;
+}
diff --git a/src/playprogram.rs b/src/playprogram.rs
new file mode 100644
index 0000000..0e13161
--- /dev/null
+++ b/src/playprogram.rs
@@ -0,0 +1,265 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Copyright (C) 2021, Richard Weinberger <richard@nod.at>
+ */
+
+use std::ffi::OsStr;
+use std::fs;
+use std::io;
+use std::path::PathBuf;
+
+extern crate rand;
+use rand::seq::SliceRandom;
+use rand::thread_rng;
+
+use crate::config;
+use crate::playerbackend::PlayerBackend;
+
+pub trait PlayProgram {
+	fn start(&mut self, backend: &mut dyn PlayerBackend) -> io::Result<()>;
+	fn next(&mut self, backend: &mut dyn PlayerBackend) -> io::Result<()>;
+	fn prev(&mut self, backend: &mut dyn PlayerBackend) -> io::Result<()>;
+}
+
+pub struct Linear {
+	base_dir: String,
+	items: Vec<PathBuf>,
+	pos: usize,
+	num_play: usize,
+}
+
+pub struct Shuffle {
+	base_dir: String,
+	items: Vec<PathBuf>,
+	pos: usize,
+	num_play: usize,
+}
+
+pub struct Random {
+	base_dir: String,
+	items: Vec<PathBuf>,
+	num_play: usize,
+}
+
+fn generic_start_play(
+	backend: &mut dyn PlayerBackend,
+	items: &Vec<PathBuf>,
+	cur_pos: usize,
+	num_play: usize,
+) -> io::Result<usize> {
+	let mut it = items.iter().cycle();
+	let num_want_play = std::cmp::min(num_play, items.len());
+	let mut list = Vec::new();
+
+	//TODO: Use advance_by() as soon available
+	for _ in 0..cur_pos {
+		it.next();
+	}
+
+	for _ in 0..num_want_play {
+		list.push(it.next().unwrap());
+	}
+
+	backend.play_multiple_files(list)?;
+
+	Ok((cur_pos + num_want_play) % items.len())
+}
+
+fn generic_next(
+	backend: &mut dyn PlayerBackend,
+	items: &Vec<PathBuf>,
+	cur_pos: usize,
+	num_play: usize,
+) -> io::Result<usize> {
+	let mut it = items.iter().cycle();
+	let num_want_play = std::cmp::min(num_play, items.len());
+	let mut list = Vec::new();
+	let new_pos = (cur_pos + num_want_play) % items.len();
+
+	//TODO: Use advance_by() as soon available
+	for _ in 0..new_pos {
+		it.next();
+	}
+
+	for _ in 0..num_want_play {
+		list.push(it.next().unwrap());
+	}
+
+	backend.play_multiple_files(list)?;
+
+	Ok(new_pos)
+}
+
+fn generic_prev(
+	backend: &mut dyn PlayerBackend,
+	items: &Vec<PathBuf>,
+	cur_pos: usize,
+	num_play: usize,
+) -> io::Result<usize> {
+	let mut it = items.iter().cycle();
+	let num_want_play = std::cmp::min(num_play, items.len());
+	let mut list = Vec::new();
+	let new_pos;
+
+	if cur_pos < num_want_play {
+		new_pos = 0;
+	} else {
+		new_pos = cur_pos - num_want_play;
+	}
+
+	//TODO: Use advance_by() as soon available
+	for _ in 0..new_pos {
+		it.next();
+	}
+
+	for _ in 0..num_want_play {
+		list.push(it.next().unwrap());
+	}
+
+	backend.play_multiple_files(list)?;
+
+	Ok(new_pos)
+}
+
+fn load_files_nonrec(from: &String, items: &mut Vec<PathBuf>) -> io::Result<()> {
+	for entry in fs::read_dir(from)? {
+		let entry = entry.unwrap().path();
+
+		if entry.is_file() {
+			let extension = entry.extension().unwrap_or(OsStr::new(""));
+
+			if extension != OsStr::new("") {
+				items.push(entry);
+			}
+		}
+	}
+
+	Ok(())
+}
+
+impl Linear {
+	pub fn new(cfg: &config::PlayListConfig) -> io::Result<Linear> {
+		let num_play = match cfg.extra.get("num_play") {
+			None => 1,
+			Some(v) => v.parse::<usize>().unwrap_or(1),
+		};
+
+		let mut pl = Linear {
+			base_dir: String::from(&cfg.source),
+			num_play: num_play,
+			items: Vec::new(),
+			pos: 0,
+		};
+
+		load_files_nonrec(&pl.base_dir, &mut pl.items)?;
+
+		pl.items.sort();
+
+		Ok(pl)
+	}
+}
+
+impl PlayProgram for Linear {
+	fn start(&mut self, backend: &mut dyn PlayerBackend) -> io::Result<()> {
+		generic_start_play(backend, &self.items, self.pos, self.num_play)?;
+
+		Ok(())
+	}
+
+	fn next(&mut self, backend: &mut dyn PlayerBackend) -> io::Result<()> {
+		self.pos = generic_next(backend, &self.items, self.pos, self.num_play)?;
+
+		Ok(())
+	}
+
+	fn prev(&mut self, backend: &mut dyn PlayerBackend) -> io::Result<()> {
+		self.pos = generic_prev(backend, &self.items, self.pos, self.num_play)?;
+
+		Ok(())
+	}
+}
+
+impl Shuffle {
+	pub fn new(cfg: &config::PlayListConfig) -> io::Result<Shuffle> {
+		let num_play = match cfg.extra.get("num_play") {
+			None => 1,
+			Some(v) => v.parse::<usize>().unwrap_or(1),
+		};
+
+		let mut pl = Shuffle {
+			base_dir: String::from(&cfg.source),
+			num_play: num_play,
+			items: Vec::new(),
+			pos: 0,
+		};
+
+		load_files_nonrec(&pl.base_dir, &mut pl.items)?;
+
+		pl.items.shuffle(&mut thread_rng());
+
+		Ok(pl)
+	}
+}
+
+impl PlayProgram for Shuffle {
+	fn start(&mut self, backend: &mut dyn PlayerBackend) -> io::Result<()> {
+		self.pos = generic_start_play(backend, &self.items, self.pos, self.num_play)?;
+
+		Ok(())
+	}
+
+	fn next(&mut self, backend: &mut dyn PlayerBackend) -> io::Result<()> {
+		let new_pos = generic_next(backend, &self.items, self.pos, self.num_play)?;
+
+		if new_pos < self.pos {
+			self.items.shuffle(&mut thread_rng());
+			self.pos = 0;
+		} else {
+			self.pos = new_pos;
+		}
+
+		Ok(())
+	}
+
+	fn prev(&mut self, backend: &mut dyn PlayerBackend) -> io::Result<()> {
+		self.pos = generic_prev(backend, &self.items, self.pos, self.num_play)?;
+
+		Ok(())
+	}
+}
+
+impl Random {
+	pub fn new(cfg: &config::PlayListConfig) -> io::Result<Random> {
+		let num_play = match cfg.extra.get("num_play") {
+			None => 1,
+			Some(v) => v.parse::<usize>().unwrap_or(1),
+		};
+
+		let mut pl = Random {
+			base_dir: String::from(&cfg.source),
+			num_play: num_play,
+			items: Vec::new(),
+		};
+
+		load_files_nonrec(&pl.base_dir, &mut pl.items)?;
+
+		Ok(pl)
+	}
+}
+
+impl PlayProgram for Random {
+	fn start(&mut self, backend: &mut dyn PlayerBackend) -> io::Result<()> {
+		self.items.shuffle(&mut thread_rng());
+		generic_start_play(backend, &self.items, 0, self.num_play)?;
+
+		Ok(())
+	}
+
+	fn next(&mut self, backend: &mut dyn PlayerBackend) -> io::Result<()> {
+		self.start(backend)
+	}
+
+	fn prev(&mut self, backend: &mut dyn PlayerBackend) -> io::Result<()> {
+		self.start(backend)
+	}
+}
diff --git a/src/poll.rs b/src/poll.rs
new file mode 100644
index 0000000..301b1ed
--- /dev/null
+++ b/src/poll.rs
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Copyright (C) 2021, Richard Weinberger <richard@nod.at>
+ */
+
+use std::io;
+use std::os::unix::io::RawFd;
+
+pub fn single_poll(fd: RawFd, events: i16) -> io::Result<i16> {
+	let mut pfd = libc::pollfd {
+		fd: fd,
+		events: events,
+		revents: 0,
+	};
+
+	let pret;
+	unsafe {
+		pret = libc::poll(&mut pfd, 1 as u64, -1);
+	};
+
+	if pret < 0 {
+		Err(io::Error::from_raw_os_error(-pret))
+	} else if pret == 0 {
+		Ok(0)
+	} else {
+		Ok(pfd.revents)
+	}
+}
diff --git a/src/vlc.rs b/src/vlc.rs
new file mode 100644
index 0000000..7d007a4
--- /dev/null
+++ b/src/vlc.rs
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Copyright (C) 2021, Richard Weinberger <richard@nod.at>
+ */
+
+use std::io;
+use std::io::Read;
+use std::io::Write;
+use std::net::TcpStream;
+use std::os::unix::io::AsRawFd;
+use std::path::PathBuf;
+
+use crate::config::PlayerConfig;
+use crate::playerbackend::PlayerBackend;
+use crate::poll;
+
+pub struct BackendVlc {
+	conn: std::net::TcpStream,
+	volume: u32,
+	volume_step: u32,
+}
+
+impl BackendVlc {
+	pub fn new(cfg: &PlayerConfig) -> Option<BackendVlc> {
+		let vlcaddr = match cfg.backendconfig.get("addr") {
+			None => {
+				eprintln!("addr not set in backendconfig section!");
+				return None;
+			}
+			Some(v) => v,
+		};
+
+		match BackendVlc::init(vlcaddr) {
+			Ok(vlc) => Some(vlc),
+			Err(e) => {
+				eprintln!("Unable to connect to VLC: {}", e);
+				None
+			}
+		}
+	}
+
+	fn init(dst: &str) -> io::Result<BackendVlc> {
+		let conn = TcpStream::connect(dst)?;
+
+		conn.set_nonblocking(true)?;
+
+		let mut vlc = BackendVlc {
+			conn: conn,
+			volume: 256,
+			volume_step: 5,
+		};
+
+		vlc.wait_till_ready()?;
+		vlc.do_vlc_cmds(vec![String::from("stop"), String::from("clear")])?;
+		vlc.set_volume(vlc.volume)?;
+
+		Ok(vlc)
+	}
+
+	fn wait_till_ready(&mut self) -> io::Result<()> {
+		let mut rbuf = vec![0; 128];
+		let mut total = Vec::new();
+
+		loop {
+			let revents = poll::single_poll(self.conn.as_raw_fd(), libc::POLLIN | libc::POLLPRI)?;
+			if revents == 0 {
+				continue;
+			} else if revents as u32 & (libc::POLLERR as u32 | libc::POLLHUP as u32) != 0 {
+				return Err(io::Error::new(
+					io::ErrorKind::Other,
+					"Connection to VLC gone",
+				));
+			}
+
+			let got = self.conn.read(&mut rbuf)?;
+
+			total = [&total, &rbuf[0..got]].concat();
+
+			let resp = String::from_utf8_lossy(&total);
+
+			if resp.ends_with("> ") {
+				break;
+			}
+		}
+
+		Ok(())
+	}
+
+	fn do_vlc_cmds(&mut self, cmds: Vec<String>) -> io::Result<()> {
+		for cmd in cmds {
+			println!("to vlc: {}", cmd);
+			self.conn.write(format!("{}\n", cmd).as_bytes())?;
+			self.wait_till_ready()?;
+		}
+
+		Ok(())
+	}
+}
+
+impl PlayerBackend for BackendVlc {
+	fn set_volume(&mut self, vol: u32) -> io::Result<()> {
+		self.do_vlc_cmds(vec![format!("volume {}", vol)])
+	}
+
+	fn volume_up(&mut self) -> io::Result<()> {
+		self.do_vlc_cmds(vec![format!("volup {}", self.volume_step)])
+	}
+
+	fn volume_down(&mut self) -> io::Result<()> {
+		self.do_vlc_cmds(vec![format!("voldown {}", self.volume_step)])
+	}
+
+	fn pause(&mut self) -> io::Result<()> {
+		self.do_vlc_cmds(vec![String::from("pause")])
+	}
+
+	fn stop(&mut self) -> io::Result<()> {
+		self.do_vlc_cmds(vec![String::from("stop")])
+	}
+
+	fn play(&mut self) -> io::Result<()> {
+		self.do_vlc_cmds(vec![String::from("play")])
+	}
+
+	fn play_single_file(&mut self, file: &PathBuf) -> io::Result<()> {
+		self.play_multiple_files(vec![file])
+	}
+
+	fn play_multiple_files(&mut self, files: Vec<&PathBuf>) -> io::Result<()> {
+		let mut cmds = Vec::new();
+
+		cmds.push(String::from("stop"));
+		cmds.push(String::from("clear"));
+
+		for file in files {
+			let f = file.to_str().unwrap();
+
+			cmds.push(format!("enqueue {}", f));
+		}
+
+		cmds.push(String::from("goto 0"));
+		cmds.push(String::from("play"));
+
+		self.do_vlc_cmds(cmds)
+	}
+}