[nihav-player.git] / sndplay / src / main.rs

extern crate libc;
extern crate sdl2_sys;
extern crate nihav_core;
extern crate nihav_registry;

use std::fs::File;
use std::io::prelude::*;
use std::io::{BufReader, SeekFrom};
use std::sync::mpsc;
use std::time::Duration;
use std::thread;
use sdl2_sys::{SDL_AudioSpec, Uint32};
use nihav_core::io::byteio::{FileReader, ByteReader};
use nihav_core::frame::*;
use nihav_core::codecs::*;
use nihav_core::demuxers::*;
use nihav_core::soundcvt::*;
use nihav_registry::detect;

mod allreg;
mod command;
use command::*;

struct Player {
    ended:      bool,
    dmx_reg:    RegisteredDemuxers,
    dec_reg:    RegisteredDecoders,
    paused:     bool,
    mute:       bool,
    volume:     u8,
    debug:      bool,
    buf:        Vec<i16>,
}

struct AudioDevice {
    device_id:  sdl2_sys::SDL_AudioDeviceID
}

impl AudioDevice {
    fn open(arate: u32, channels: u8) -> Option<(Self, SDL_AudioSpec)> {
        let desired_spec = SDL_AudioSpec {
            freq:       arate as i32,
            format:     sdl2_sys::AUDIO_S16 as u16,
            channels,
            silence:    0,
            samples:    0,
            padding:    0,
            size:       0,
            callback:   None,
            userdata:   std::ptr::null_mut(),
        };
        let mut dspec = desired_spec;
        let device_id = unsafe { sdl2_sys::SDL_OpenAudioDevice(std::ptr::null(), 0, &desired_spec, &mut dspec, 0) };
        if device_id != 0 {
            Some((AudioDevice { device_id }, dspec))
        } else {
            None
        }
    }
    fn pause(&self) {
        unsafe { sdl2_sys::SDL_PauseAudioDevice(self.device_id, 1); }
    }
    fn resume(&self) {
        unsafe { sdl2_sys::SDL_PauseAudioDevice(self.device_id, 0); }
    }
    fn clear(&self) {
        unsafe { sdl2_sys::SDL_ClearQueuedAudio(self.device_id); }
    }
    fn queue(&self, buf: &[i16]) {
        unsafe {
            let len = buf.len() * 2;
            let buf_ptr = buf.as_ptr();
            sdl2_sys::SDL_QueueAudio(self.device_id, buf_ptr as *const core::ffi::c_void, len as Uint32);
        }
    }
    fn queue_bytes(&self, buf: &[u8]) {
        unsafe {
            let len = buf.len();
            let buf_ptr = buf.as_ptr();
            sdl2_sys::SDL_QueueAudio(self.device_id, buf_ptr as *const core::ffi::c_void, len as Uint32);
        }
    }
    fn size(&self) -> u32 {
        unsafe { sdl2_sys::SDL_GetQueuedAudioSize(self.device_id) }
    }
}

impl Drop for AudioDevice {
    fn drop(&mut self) {
        unsafe { sdl2_sys::SDL_CloseAudioDevice(self.device_id); }
    }
}

struct Decoder<'a> {
    demuxer:    Demuxer<'a>,
    decoder:    Box<dyn NADecoder>,
    dsupp:      Box<NADecoderSupport>,
    buf:        &'a mut Vec<i16>,
    stream_no:  usize,
    dst_info:   NAAudioInfo,
    dst_chmap:  NAChannelMap,
    samplepos:  u64,
    arate:      u32,
    volume:     u8,
    mute:       bool,
}

fn output_vol_i16(device: &AudioDevice, tmp: &mut Vec<i16>, src: &[i16], mute: bool, volume: u8) {
    if !mute {
        tmp.clear();
        tmp.reserve(src.len());
        let vol = i32::from(volume);
        for &sample in src.iter() {
            let nsamp = vol * i32::from(sample) / 100;
            tmp.push(nsamp.min(32767).max(-32768) as i16);
        }
    } else {
        tmp.clear();
        tmp.resize(src.len(), 0);
    }
    device.queue(&tmp);
}

fn output_vol_u8(device: &AudioDevice, tmp: &mut Vec<i16>, src: &[u8], mute: bool, volume: u8) {
    if !mute {
        tmp.clear();
        tmp.reserve(src.len());
        let vol = i32::from(volume);
        for sample in src.chunks_exact(2) {
            let sample = (u16::from(sample[0]) + u16::from(sample[1]) * 256) as i16;
            let nsamp = vol * i32::from(sample) / 100;
            tmp.push(nsamp.min(32767).max(-32768) as i16);
        }
    } else {
        tmp.clear();
        tmp.resize(src.len() / 2, 0);
    }
    device.queue(&tmp);
}

impl<'a> Decoder<'a> {
    fn refill(&mut self, device: &AudioDevice) -> bool {
        loop {
            match self.demuxer.get_frame() {
                Ok(pkt) => {
                    if pkt.get_stream().get_num() == self.stream_no {
                        match self.decoder.decode(&mut self.dsupp, &pkt) {
                            Ok(frm) => {
                                let buf = frm.get_buffer();
                                if let NABufferType::None = buf {
                                    return false;
                                }
                                if let Some(pts) = frm.ts.get_pts() {
                                    self.samplepos = NATimeInfo::ts_to_time(pts, u64::from(self.arate), frm.ts.tb_num, frm.ts.tb_den);
                                }
                                let out_buf = convert_audio_frame(&buf, &self.dst_info, &self.dst_chmap).unwrap();
                                match out_buf {
                                    NABufferType::AudioI16(abuf) => {
                                        if !self.mute && self.volume == 100 {
                                            device.queue(&abuf.get_data());
                                        } else {
                                            output_vol_i16(device, self.buf, &abuf.get_data(), self.mute, self.volume);
                                        }
                                        self.samplepos += abuf.get_length() as u64;
                                    },
                                    NABufferType::AudioPacked(abuf) => {
                                        if !self.mute && self.volume == 100 {
                                            device.queue_bytes(&abuf.get_data());
                                        } else {
                                            output_vol_u8(device, self.buf, &abuf.get_data(), self.mute, self.volume);
                                        }
                                        self.samplepos += abuf.get_length() as u64;
                                    },
                                    _ => println!("unknown buffer type"),
                                };
                                return false;
                            },
                            Err(err) => {
                                println!(" error decoding {:?}", err);
                                return true;
                            },
                        };
                    }
                },
                Err(DemuxerError::EOF) => return true,
                Err(err) => {
                    println!("demuxing error {:?}", err);
                    return true;
                },
            };
        }
    }
    fn seek(&mut self, time: u64) -> bool {
        let ret = self.demuxer.seek(NATimePoint::Milliseconds(time));
if ret.is_err() { println!(" seek error\n"); }
        ret.is_ok()
    }
}

fn format_time(ms: u64) -> String {
    let s = ms / 1000;
    let ds = (ms % 1000) / 100;
    let (min, s) = (s / 60, s % 60);
    let (h, min) = (min / 60, min % 60);
    if h == 0 {
        if min == 0 {
            format!("{}.{}", s, ds)
        } else {
            format!("{}:{:02}.{}", min, s, ds)
        }
    } else {
        format!("{}:{:02}:{:02}.{}", h, min, s, ds)
    }
}

impl Player {
    fn new() -> Self {
        let mut dmx_reg = RegisteredDemuxers::new();
        allreg::register_all_demuxers(&mut dmx_reg);
        let mut dec_reg = RegisteredDecoders::new();
        allreg::register_all_decoders(&mut dec_reg);

        unsafe {
            if sdl2_sys::SDL_Init(sdl2_sys::SDL_INIT_AUDIO) != 0 {
                panic!("cannot init SDL");
            }
        }

        Self {
            ended:  false,
            paused: false,
            dmx_reg, dec_reg,
            volume: 100,
            mute:   false,
            debug:  false,
            buf:    Vec::new(),
        }
    }
    fn play_file(&mut self, name: &str, cmd_receiver: &mpsc::Receiver<Command>, start_time: NATimePoint) {
        let ret = File::open(name);
        if ret.is_err() {
            println!("error opening {}", name);
            return;
        }
        let mut file = ret.unwrap();

        let mut fr = FileReader::new_read(&mut file);
        let mut br = ByteReader::new(&mut fr);
        let res = detect::detect_format(name, &mut br);
        if res.is_none() {
            println!("cannot detect format for {}", name);
            return;
        }
        let (dmx_name, _) = res.unwrap();
        drop(br);
        drop(fr);
        let dmx_fact = self.dmx_reg.find_demuxer(dmx_name);
        if dmx_fact.is_none() {
            println!("no demuxer for format {}", dmx_name);
            return;
        }
        let dmx_fact = dmx_fact.unwrap();

        file.seek(SeekFrom::Start(0)).unwrap();
        let mut file = BufReader::new(file);
        let mut fr = FileReader::new_read(&mut file);
        let mut br = ByteReader::new(&mut fr);
        let res = create_demuxer(dmx_fact, &mut br);
        if res.is_err() {
            println!("cannot create demuxer");
            return;
        }
        let dmx = res.unwrap();

        let mut ainfo = None;
        let mut dec: Option<(Box<NADecoderSupport>, Box<dyn NADecoder>)> = None;
        let mut stream_no = 0;
        let mut duration = dmx.get_duration();
        for i in 0..dmx.get_num_streams() {
            let s = dmx.get_stream(i).unwrap();
            let info = s.get_info();
            if info.is_audio() {
                let decfunc = self.dec_reg.find_decoder(info.get_name());
                if decfunc.is_none() {
                    println!("no decoder for {}", info.get_name());
                    continue;
                }
                let mut decoder = (decfunc.unwrap())();
                let mut dsupp = Box::new(NADecoderSupport::new());
                if decoder.init(&mut dsupp, info.clone()).is_err() {
                    println!("cannot init decoder for stream {}", i);
                    continue;
                }
                dec = Some((dsupp, decoder));
                ainfo = Some(info);
                stream_no = i;
                if s.duration > 0 {
                    duration = NATimeInfo::ts_to_time(s.duration, 1000, s.tb_num, s.tb_den);
                }
                break;
            }
        }
        if dec.is_none() {
            println!("no audio decoder found");
            return;
        }
        let (dsupp, decoder) = dec.unwrap();

        let ainfo = ainfo.unwrap().get_properties().get_audio_info().unwrap();
        let arate = if ainfo.sample_rate > 0 { ainfo.sample_rate } else { 44100 };
        let ch    = ainfo.channels;

        println!("Playing {} [{}Hz {}ch]", name, arate, ch);
        let ret = AudioDevice::open(arate, ch.min(2));
        if ret.is_none() {
            println!("cannot open output");
            return;
        }
        let (device, dspec) = ret.unwrap();
        let block_limit = dmx.get_stream(stream_no).unwrap().tb_num * arate / dmx.get_stream(stream_no).unwrap().tb_den * u32::from(dspec.channels);

        let dst_info = NAAudioInfo { sample_rate: dspec.freq as u32, channels: dspec.channels, format: SND_S16_FORMAT, block_len: 1 };
        let dst_chmap = if dst_info.channels == 2 {
                NAChannelMap::from_str("L,R").unwrap()
            } else {
                NAChannelMap::from_str("C").unwrap()
            };
        let mut decoder = Decoder {
                demuxer:    dmx,
                decoder, dsupp,
                stream_no,
                dst_info, dst_chmap,
                samplepos: 0,
                arate,
                volume: self.volume,
                mute:   self.mute,
                buf:    &mut self.buf,
            };
        let mut refill_limit = arate * u32::from(dspec.channels);
        let underfill_limit = (arate * u32::from(dspec.channels) / 4).max(block_limit);

        if start_time != NATimePoint::None {
            let _ret = decoder.demuxer.seek(start_time);
        }

        let mut eof = decoder.refill(&device);
        while !eof && device.size() < refill_limit {
            eof = decoder.refill(&device);
        }

        let duration_str = if duration != 0 { format_time(duration) } else { "???".to_owned() };
        if !self.paused {
            device.resume();
        }
        let mut no_display = false;
        'main: loop {
            let cur_time = decoder.samplepos.saturating_sub(u64::from(device.size() / 2 / u32::from(dst_info.channels)));
            let full_ms = cur_time * 1000 / u64::from(arate);
            let timestr = format_time(full_ms);
            let disp_vol = if self.mute { 0 } else { self.volume };
            if !no_display {
                if !self.debug {
                    print!("> {} / {}   {}%       \r", timestr, duration_str, disp_vol);
                } else {
                    print!("> {} / {}   |{}| {}%       \r", timestr, duration_str, device.size(), disp_vol);
                }
            }
            std::io::stdout().flush().unwrap();
            if device.size() < underfill_limit && !self.paused && refill_limit < (1 << 20) {
                if full_ms > 5000 {
                    println!("underrun!");
                }
                refill_limit += refill_limit >> 1;
            }
            if device.size() < refill_limit / 2 {
                while !eof && device.size() < refill_limit {
                    eof = decoder.refill(&device);
                }
            }
            if eof && device.size() == 0 {
                break 'main;
            }
            while let Ok(cmd) = cmd_receiver.try_recv() {
                let cur_time = decoder.samplepos.saturating_sub(u64::from(device.size() / 2 / u32::from(dst_info.channels)));
                match cmd {
                    Command::Forward(val) => {
                        device.pause();
                        device.clear();
                        let seekoff = match val {
                                1 => 10,
                                2 => 60,
                                _ => 10 * 60,
                            };
                        let seek_time = cur_time * 1000 / u64::from(arate) + seekoff * 1000;
                        let _ret = decoder.seek(seek_time);
                        while !eof && device.size() < refill_limit {
                            eof = decoder.refill(&device);
                        }
                        if eof {
                            break 'main;
                        }
                        if !self.paused {
                            device.resume();
                        }
                    },
                    Command::Back(val) => {
                        device.pause();
                        device.clear();
                        let seekoff = match val {
                                1 => 10,
                                2 => 60,
                                _ => 10 * 60,
                            };
                        let seek_time = (cur_time * 1000 / u64::from(arate)).saturating_sub(seekoff * 1000);
                        let _ret = decoder.seek(seek_time);
                        while !eof && device.size() < refill_limit {
                            eof = decoder.refill(&device);
                        }
                        if eof {
                            break 'main;
                        }
                        if !self.paused {
                            device.resume();
                        }
                    },
                    Command::Seek(seek_time) => {
                        device.pause();
                        device.clear();
                        let _ret = decoder.seek(seek_time);
                        while !eof && device.size() < refill_limit {
                            eof = decoder.refill(&device);
                        }
                        if eof {
                            break 'main;
                        }
                        if !self.paused {
                            device.resume();
                        }
                    },
                    Command::Quit => {
                        device.pause();
                        self.ended = true;
                        break 'main;
                    },
                    Command::Next => {
                        device.pause();
                        break 'main;
                    },
                    Command::Repeat => {
                        device.pause();
                        device.clear();
                        let _ret = decoder.seek(0);
                        while !eof && device.size() < refill_limit {
                            eof = decoder.refill(&device);
                        }
                        if eof {
                            break 'main;
                        }
                        if !self.paused {
                            device.resume();
                        }
                    },
                    Command::Pause => {
                        self.paused = !self.paused;
                        if self.paused {
                            device.pause();
                        } else {
                            device.resume();
                        }
                    },
                    Command::VolumeUp => {
                        self.volume = (self.volume + 10).min(200);
                        decoder.volume = self.volume;
                    },
                    Command::VolumeDown => {
                        self.volume = self.volume.saturating_sub(10);
                        decoder.volume = self.volume;
                    },
                    Command::Mute => {
                        self.mute = !self.mute;
                        decoder.mute = self.mute;
                    },
                    Command::Debug => {
                        self.debug = !self.debug;
                    },
                    Command::PauseDisplay  => {
                        no_display = true;
                        if !self.paused {
                            device.pause();
                        }
                    },
                    Command::ResumeDisplay => {
                        no_display = false;
                        if !self.paused {
                            device.resume();
                        }
                    },
                };
                if !no_display {
                    print!("\r{:60}\r", ' ');
                }
            }
            thread::sleep(Duration::from_millis(200));
        }

        println!();
    }
}

fn main() {
    let args: Vec<String> = std::env::args().collect();

    let cmd_state = CmdLineState::new();

    let (cmd_reader_thread, cmd_receiver) = start_reader();
    let mut player = Player::new();

    if args.len() == 1 {
        println!("usage: nihav-sndplay file1 file2 ...");
        return;
    }

    if args[1] == "--help" {
        println!("usage: nihav-sndplay file1 file2 ...");
        println!("commands:");
        println!("  escape / q      - quit");
        println!("  space           - pause / resume playback");
        println!("  enter / end     - play next file");
        println!("  home            - play current track from the beginning");
        println!("  left / right    - seek 10 seconds forward / back");
        println!("  up / down       - seek 1 minute forward / back");
        println!("  pgup / pgdn     - seek 10 minutes forward / back");
        println!("  + / -           - increase / decrease volume");
        println!("  m               - mute output");
        return;
    }

    let mut aiter = args[1..].iter();
    let mut start_time = NATimePoint::None;
    while let Some(arg) = aiter.next() {
        match arg.as_str() {
            "-start" => {
                if let Some(arg) = aiter.next() {
                    if let Ok(val) = arg.parse() {
                        start_time = val;
                    } else {
                        println!("invalid time");
                    }
                } else {
                    println!("argument is required");
                }
            },
            _ => {
                player.play_file(arg, &cmd_receiver, start_time);
                if player.ended {
                    break;
                }
                start_time = NATimePoint::None;
            },
        };
    }
    cmd_state.restore();

    drop(cmd_reader_thread);
    unsafe { sdl2_sys::SDL_Quit(); }
}
Commit	Line	Data
b043bd0a KS	1	extern crate libc;
	2	extern crate sdl2_sys;
	3	extern crate nihav_core;
	4	extern crate nihav_registry;
b043bd0a KS	5
	6	use std::fs::File;
	7	use std::io::prelude::*;
	8	use std::io::{BufReader, SeekFrom};
	9	use std::sync::mpsc;
	10	use std::time::Duration;
	11	use std::thread;
	12	use sdl2_sys::{SDL_AudioSpec, Uint32};
	13	use nihav_core::io::byteio::{FileReader, ByteReader};
	14	use nihav_core::frame::*;
	15	use nihav_core::codecs::*;
	16	use nihav_core::demuxers::*;
	17	use nihav_core::soundcvt::*;
	18	use nihav_registry::detect;
b043bd0a	19
41e41352	20	mod allreg;
b043bd0a KS	21	mod command;
	22	use command::*;
	23
	24	struct Player {
	25	ended: bool,
	26	dmx_reg: RegisteredDemuxers,
	27	dec_reg: RegisteredDecoders,
	28	paused: bool,
	29	mute: bool,
	30	volume: u8,
	31	debug: bool,
	32	buf: Vec<i16>,
	33	}
	34
	35	struct AudioDevice {
	36	device_id: sdl2_sys::SDL_AudioDeviceID
	37	}
	38
	39	impl AudioDevice {
	40	fn open(arate: u32, channels: u8) -> Option<(Self, SDL_AudioSpec)> {
	41	let desired_spec = SDL_AudioSpec {
	42	freq: arate as i32,
	43	format: sdl2_sys::AUDIO_S16 as u16,
	44	channels,
	45	silence: 0,
	46	samples: 0,
	47	padding: 0,
	48	size: 0,
	49	callback: None,
	50	userdata: std::ptr::null_mut(),
	51	};
	52	let mut dspec = desired_spec;
	53	let device_id = unsafe { sdl2_sys::SDL_OpenAudioDevice(std::ptr::null(), 0, &desired_spec, &mut dspec, 0) };
	54	if device_id != 0 {
	55	Some((AudioDevice { device_id }, dspec))
	56	} else {
	57	None
	58	}
	59	}
	60	fn pause(&self) {
	61	unsafe { sdl2_sys::SDL_PauseAudioDevice(self.device_id, 1); }
	62	}
	63	fn resume(&self) {
	64	unsafe { sdl2_sys::SDL_PauseAudioDevice(self.device_id, 0); }
	65	}
	66	fn clear(&self) {
	67	unsafe { sdl2_sys::SDL_ClearQueuedAudio(self.device_id); }
	68	}
	69	fn queue(&self, buf: &[i16]) {
	70	unsafe {
	71	let len = buf.len() * 2;
	72	let buf_ptr = buf.as_ptr();
	73	sdl2_sys::SDL_QueueAudio(self.device_id, buf_ptr as *const core::ffi::c_void, len as Uint32);
	74	}
	75	}
	76	fn queue_bytes(&self, buf: &[u8]) {
	77	unsafe {
	78	let len = buf.len();
	79	let buf_ptr = buf.as_ptr();
	80	sdl2_sys::SDL_QueueAudio(self.device_id, buf_ptr as *const core::ffi::c_void, len as Uint32);
	81	}
	82	}
	83	fn size(&self) -> u32 {
	84	unsafe { sdl2_sys::SDL_GetQueuedAudioSize(self.device_id) }
85	}
86	}
87
65606213 KS	88	impl Drop for AudioDevice {
	89	fn drop(&mut self) {
	90	unsafe { sdl2_sys::SDL_CloseAudioDevice(self.device_id); }
	91	}
	92	}
	93
b043bd0a KS	94	struct Decoder<'a> {
	95	demuxer: Demuxer<'a>,
	96	decoder: Box<dyn NADecoder>,
	97	dsupp: Box<NADecoderSupport>,
	98	buf: &'a mut Vec<i16>,
	99	stream_no: usize,
	100	dst_info: NAAudioInfo,
	101	dst_chmap: NAChannelMap,
	102	samplepos: u64,
	103	arate: u32,
	104	volume: u8,
	105	mute: bool,
	106	}
	107
	108	fn output_vol_i16(device: &AudioDevice, tmp: &mut Vec<i16>, src: &[i16], mute: bool, volume: u8) {
	109	if !mute {
b5053bfc	110	tmp.clear();
b043bd0a KS	111	tmp.reserve(src.len());
	112	let vol = i32::from(volume);
	113	for &sample in src.iter() {
	114	let nsamp = vol * i32::from(sample) / 100;
	115	tmp.push(nsamp.min(32767).max(-32768) as i16);
	116	}
	117	} else {
b5053bfc	118	tmp.clear();
b043bd0a KS	119	tmp.resize(src.len(), 0);
	120	}
	121	device.queue(&tmp);
	122	}
	123
	124	fn output_vol_u8(device: &AudioDevice, tmp: &mut Vec<i16>, src: &[u8], mute: bool, volume: u8) {
	125	if !mute {
b5053bfc	126	tmp.clear();
b043bd0a KS	127	tmp.reserve(src.len());
	128	let vol = i32::from(volume);
	129	for sample in src.chunks_exact(2) {
	130	let sample = (u16::from(sample[0]) + u16::from(sample[1]) * 256) as i16;
	131	let nsamp = vol * i32::from(sample) / 100;
	132	tmp.push(nsamp.min(32767).max(-32768) as i16);
	133	}
	134	} else {
b5053bfc	135	tmp.clear();
b043bd0a KS	136	tmp.resize(src.len() / 2, 0);
	137	}
	138	device.queue(&tmp);
	139	}
	140
	141	impl<'a> Decoder<'a> {
	142	fn refill(&mut self, device: &AudioDevice) -> bool {
	143	loop {
	144	match self.demuxer.get_frame() {
	145	Ok(pkt) => {
	146	if pkt.get_stream().get_num() == self.stream_no {
	147	match self.decoder.decode(&mut self.dsupp, &pkt) {
	148	Ok(frm) => {
	149	let buf = frm.get_buffer();
89f53245 KS	150	if let NABufferType::None = buf {
	151	return false;
	152	}
b043bd0a KS	153	if let Some(pts) = frm.ts.get_pts() {
	154	self.samplepos = NATimeInfo::ts_to_time(pts, u64::from(self.arate), frm.ts.tb_num, frm.ts.tb_den);
	155	}
	156	let out_buf = convert_audio_frame(&buf, &self.dst_info, &self.dst_chmap).unwrap();
	157	match out_buf {
	158	NABufferType::AudioI16(abuf) => {
	159	if !self.mute && self.volume == 100 {
	160	device.queue(&abuf.get_data());
	161	} else {
	162	output_vol_i16(device, self.buf, &abuf.get_data(), self.mute, self.volume);
	163	}
	164	self.samplepos += abuf.get_length() as u64;
	165	},
	166	NABufferType::AudioPacked(abuf) => {
	167	if !self.mute && self.volume == 100 {
	168	device.queue_bytes(&abuf.get_data());
	169	} else {
	170	output_vol_u8(device, self.buf, &abuf.get_data(), self.mute, self.volume);
	171	}
	172	self.samplepos += abuf.get_length() as u64;
	173	},
	174	_ => println!("unknown buffer type"),
	175	};
	176	return false;
	177	},
	178	Err(err) => {
	179	println!(" error decoding {:?}", err);
	180	return true;
	181	},
	182	};
	183	}
	184	},
	185	Err(DemuxerError::EOF) => return true,
	186	Err(err) => {
	187	println!("demuxing error {:?}", err);
	188	return true;
	189	},
	190	};
	191	}
	192	}
	193	fn seek(&mut self, time: u64) -> bool {
	194	let ret = self.demuxer.seek(NATimePoint::Milliseconds(time));
	195	if ret.is_err() { println!(" seek error\n"); }
	196	ret.is_ok()
	197	}
	198	}
	199
	200	fn format_time(ms: u64) -> String {
	201	let s = ms / 1000;
	202	let ds = (ms % 1000) / 100;
	203	let (min, s) = (s / 60, s % 60);
be48734e KS	204	let (h, min) = (min / 60, min % 60);
	205	if h == 0 {
	206	if min == 0 {
	207	format!("{}.{}", s, ds)
	208	} else {
	209	format!("{}:{:02}.{}", min, s, ds)
	210	}
b043bd0a	211	} else {
be48734e	212	format!("{}:{:02}:{:02}.{}", h, min, s, ds)
b043bd0a KS	213	}
	214	}
	215
	216	impl Player {
	217	fn new() -> Self {
	218	let mut dmx_reg = RegisteredDemuxers::new();
41e41352	219	allreg::register_all_demuxers(&mut dmx_reg);
b043bd0a	220	let mut dec_reg = RegisteredDecoders::new();
41e41352	221	allreg::register_all_decoders(&mut dec_reg);
b043bd0a KS	222
	223	unsafe {
	224	if sdl2_sys::SDL_Init(sdl2_sys::SDL_INIT_AUDIO) != 0 {
	225	panic!("cannot init SDL");
	226	}
	227	}
	228
	229	Self {
	230	ended: false,
	231	paused: false,
	232	dmx_reg, dec_reg,
	233	volume: 100,
	234	mute: false,
	235	debug: false,
	236	buf: Vec::new(),
	237	}
	238	}
36ac48e5	239	fn play_file(&mut self, name: &str, cmd_receiver: &mpsc::Receiver<Command>, start_time: NATimePoint) {
b043bd0a KS	240	let ret = File::open(name);
	241	if ret.is_err() {
	242	println!("error opening {}", name);
	243	return;
	244	}
	245	let mut file = ret.unwrap();
	246
	247	let mut fr = FileReader::new_read(&mut file);
	248	let mut br = ByteReader::new(&mut fr);
	249	let res = detect::detect_format(name, &mut br);
	250	if res.is_none() {
	251	println!("cannot detect format for {}", name);
	252	return;
	253	}
	254	let (dmx_name, _) = res.unwrap();
	255	drop(br);
	256	drop(fr);
	257	let dmx_fact = self.dmx_reg.find_demuxer(dmx_name);
	258	if dmx_fact.is_none() {
	259	println!("no demuxer for format {}", dmx_name);
	260	return;
	261	}
	262	let dmx_fact = dmx_fact.unwrap();
	263
	264	file.seek(SeekFrom::Start(0)).unwrap();
	265	let mut file = BufReader::new(file);
	266	let mut fr = FileReader::new_read(&mut file);
	267	let mut br = ByteReader::new(&mut fr);
	268	let res = create_demuxer(dmx_fact, &mut br);
	269	if res.is_err() {
	270	println!("cannot create demuxer");
	271	return;
	272	}
	273	let dmx = res.unwrap();
	274
	275	let mut ainfo = None;
	276	let mut dec: Option<(Box<NADecoderSupport>, Box<dyn NADecoder>)> = None;
	277	let mut stream_no = 0;
	278	let mut duration = dmx.get_duration();
	279	for i in 0..dmx.get_num_streams() {
	280	let s = dmx.get_stream(i).unwrap();
	281	let info = s.get_info();
	282	if info.is_audio() {
	283	let decfunc = self.dec_reg.find_decoder(info.get_name());
	284	if decfunc.is_none() {
	285	println!("no decoder for {}", info.get_name());
	286	continue;
	287	}
	288	let mut decoder = (decfunc.unwrap())();
	289	let mut dsupp = Box::new(NADecoderSupport::new());
	290	if decoder.init(&mut dsupp, info.clone()).is_err() {
	291	println!("cannot init decoder for stream {}", i);
	292	continue;
	293	}
	294	dec = Some((dsupp, decoder));
	295	ainfo = Some(info);
	296	stream_no = i;
	297	if s.duration > 0 {
	298	duration = NATimeInfo::ts_to_time(s.duration, 1000, s.tb_num, s.tb_den);
	299	}
	300	break;
	301	}
	302	}
	303	if dec.is_none() {
304	println!("no audio decoder found");
305	return;
306	}
307	let (dsupp, decoder) = dec.unwrap();
308
309	let ainfo = ainfo.unwrap().get_properties().get_audio_info().unwrap();
310	let arate = if ainfo.sample_rate > 0 { ainfo.sample_rate } else { 44100 };
311	let ch = ainfo.channels;
312
313	println!("Playing {} [{}Hz {}ch]", name, arate, ch);
5a92ee55	314	let ret = AudioDevice::open(arate, ch.min(2));
b043bd0a KS	315	if ret.is_none() {
	316	println!("cannot open output");
	317	return;
	318	}
	319	let (device, dspec) = ret.unwrap();
	320	let block_limit = dmx.get_stream(stream_no).unwrap().tb_num * arate / dmx.get_stream(stream_no).unwrap().tb_den * u32::from(dspec.channels);
	321
	322	let dst_info = NAAudioInfo { sample_rate: dspec.freq as u32, channels: dspec.channels, format: SND_S16_FORMAT, block_len: 1 };
	323	let dst_chmap = if dst_info.channels == 2 {
	324	NAChannelMap::from_str("L,R").unwrap()
	325	} else {
	326	NAChannelMap::from_str("C").unwrap()
	327	};
	328	let mut decoder = Decoder {
	329	demuxer: dmx,
	330	decoder, dsupp,
	331	stream_no,
	332	dst_info, dst_chmap,
	333	samplepos: 0,
	334	arate,
	335	volume: self.volume,
	336	mute: self.mute,
	337	buf: &mut self.buf,
	338	};
	339	let mut refill_limit = arate * u32::from(dspec.channels);
	340	let underfill_limit = (arate * u32::from(dspec.channels) / 4).max(block_limit);
	341
36ac48e5 KS	342	if start_time != NATimePoint::None {
	343	let _ret = decoder.demuxer.seek(start_time);
	344	}
	345
b043bd0a KS	346	let mut eof = decoder.refill(&device);
	347	while !eof && device.size() < refill_limit {
	348	eof = decoder.refill(&device);
	349	}
	350
	351	let duration_str = if duration != 0 { format_time(duration) } else { "???".to_owned() };
	352	if !self.paused {
	353	device.resume();
	354	}
0a727e05	355	let mut no_display = false;
b043bd0a KS	356	'main: loop {
	357	let cur_time = decoder.samplepos.saturating_sub(u64::from(device.size() / 2 / u32::from(dst_info.channels)));
	358	let full_ms = cur_time * 1000 / u64::from(arate);
	359	let timestr = format_time(full_ms);
	360	let disp_vol = if self.mute { 0 } else { self.volume };
0a727e05 KS	361	if !no_display {
	362	if !self.debug {
	363	print!("> {} / {} {}% \r", timestr, duration_str, disp_vol);
	364	} else {
	365	print!("> {} / {} \|{}\| {}% \r", timestr, duration_str, device.size(), disp_vol);
	366	}
b043bd0a KS	367	}
	368	std::io::stdout().flush().unwrap();
	369	if device.size() < underfill_limit && !self.paused && refill_limit < (1 << 20) {
	370	if full_ms > 5000 {
	371	println!("underrun!");
	372	}
	373	refill_limit += refill_limit >> 1;
	374	}
	375	if device.size() < refill_limit / 2 {
	376	while !eof && device.size() < refill_limit {
	377	eof = decoder.refill(&device);
	378	}
	379	}
	380	if eof && device.size() == 0 {
	381	break 'main;
	382	}
	383	while let Ok(cmd) = cmd_receiver.try_recv() {
	384	let cur_time = decoder.samplepos.saturating_sub(u64::from(device.size() / 2 / u32::from(dst_info.channels)));
	385	match cmd {
	386	Command::Forward(val) => {
	387	device.pause();
	388	device.clear();
	389	let seekoff = match val {
	390	1 => 10,
	391	2 => 60,
	392	_ => 10 * 60,
	393	};
	394	let seek_time = cur_time * 1000 / u64::from(arate) + seekoff * 1000;
	395	let _ret = decoder.seek(seek_time);
	396	while !eof && device.size() < refill_limit {
	397	eof = decoder.refill(&device);
	398	}
	399	if eof {
	400	break 'main;
	401	}
	402	if !self.paused {
	403	device.resume();
	404	}
	405	},
	406	Command::Back(val) => {
	407	device.pause();
	408	device.clear();
	409	let seekoff = match val {
	410	1 => 10,
	411	2 => 60,
	412	_ => 10 * 60,
	413	};
	414	let seek_time = (cur_time * 1000 / u64::from(arate)).saturating_sub(seekoff * 1000);
	415	let _ret = decoder.seek(seek_time);
	416	while !eof && device.size() < refill_limit {
	417	eof = decoder.refill(&device);
	418	}
	419	if eof {
	420	break 'main;
	421	}
	422	if !self.paused {
	423	device.resume();
	424	}
	425	},
0a727e05 KS	426	Command::Seek(seek_time) => {
	427	device.pause();
	428	device.clear();
	429	let _ret = decoder.seek(seek_time);
	430	while !eof && device.size() < refill_limit {
	431	eof = decoder.refill(&device);
	432	}
	433	if eof {
	434	break 'main;
	435	}
	436	if !self.paused {
	437	device.resume();
	438	}
	439	},
b043bd0a KS	440	Command::Quit => {
	441	device.pause();
	442	self.ended = true;
	443	break 'main;
	444	},
	445	Command::Next => {
	446	device.pause();
	447	break 'main;
	448	},
	449	Command::Repeat => {
	450	device.pause();
	451	device.clear();
	452	let _ret = decoder.seek(0);
	453	while !eof && device.size() < refill_limit {
	454	eof = decoder.refill(&device);
	455	}
	456	if eof {
	457	break 'main;
	458	}
	459	if !self.paused {
	460	device.resume();
	461	}
	462	},
	463	Command::Pause => {
	464	self.paused = !self.paused;
	465	if self.paused {
	466	device.pause();
	467	} else {
	468	device.resume();
	469	}
	470	},
	471	Command::VolumeUp => {
	472	self.volume = (self.volume + 10).min(200);
	473	decoder.volume = self.volume;
	474	},
	475	Command::VolumeDown => {
	476	self.volume = self.volume.saturating_sub(10);
	477	decoder.volume = self.volume;
	478	},
	479	Command::Mute => {
	480	self.mute = !self.mute;
	481	decoder.mute = self.mute;
	482	},
	483	Command::Debug => {
	484	self.debug = !self.debug;
	485	},
98431ed5 KS	486	Command::PauseDisplay => {
	487	no_display = true;
	488	if !self.paused {
	489	device.pause();
	490	}
	491	},
	492	Command::ResumeDisplay => {
	493	no_display = false;
	494	if !self.paused {
	495	device.resume();
	496	}
	497	},
b043bd0a	498	};
0a727e05 KS	499	if !no_display {
	500	print!("\r{:60}\r", ' ');
	501	}
b043bd0a KS	502	}
	503	thread::sleep(Duration::from_millis(200));
	504	}
	505
	506	println!();
	507	}
	508	}
	509
	510	fn main() {
	511	let args: Vec<String> = std::env::args().collect();
	512
	513	let cmd_state = CmdLineState::new();
	514
	515	let (cmd_reader_thread, cmd_receiver) = start_reader();
	516	let mut player = Player::new();
	517
	518	if args.len() == 1 {
	519	println!("usage: nihav-sndplay file1 file2 ...");
	520	return;
	521	}
	522
	523	if args[1] == "--help" {
	524	println!("usage: nihav-sndplay file1 file2 ...");
	525	println!("commands:");
	526	println!(" escape / q - quit");
	527	println!(" space - pause / resume playback");
	528	println!(" enter / end - play next file");
	529	println!(" home - play current track from the beginning");
	530	println!(" left / right - seek 10 seconds forward / back");
	531	println!(" up / down - seek 1 minute forward / back");
	532	println!(" pgup / pgdn - seek 10 minutes forward / back");
	533	println!(" + / - - increase / decrease volume");
	534	println!(" m - mute output");
	535	return;
	536	}
	537
36ac48e5 KS	538	let mut aiter = args[1..].iter();
	539	let mut start_time = NATimePoint::None;
	540	while let Some(arg) = aiter.next() {
	541	match arg.as_str() {
	542	"-start" => {
	543	if let Some(arg) = aiter.next() {
	544	if let Ok(val) = arg.parse() {
	545	start_time = val;
	546	} else {
	547	println!("invalid time");
	548	}
	549	} else {
	550	println!("argument is required");
	551	}
	552	},
	553	_ => {
	554	player.play_file(arg, &cmd_receiver, start_time);
	555	if player.ended {
	556	break;
	557	}
	558	start_time = NATimePoint::None;
	559	},
	560	};
b043bd0a KS	561	}
	562	cmd_state.restore();
	563
	564	drop(cmd_reader_thread);
	565	unsafe { sdl2_sys::SDL_Quit(); }
	566	}