[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;
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::*;

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

struct Player {
    ended:      bool,
    full_reg:   allreg::FullRegister,
    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:    DemuxerObject<'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);
                                }
                                if buf.get_audio_length() == 0 {
                                    return false;
                                }
                                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 full_reg = allreg::FullRegister::new();

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

        Self {
            ended:  false,
            paused: false,
            full_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 file = ret.unwrap();
        let file = BufReader::new(file);

        let mut fr = FileReader::new_read(file);
        let mut br = ByteReader::new(&mut fr);
        if br.peek_byte().is_err() {
            println!("Cannot read {}", name);
            return;
        }
        let (is_raw, start, end) = detect_tags(&mut br);

        let mut nfr: Box<dyn ByteIO>;
        if start != 0 || end.is_some() {
            //println!(" limiting range to {:X}-{:X}", start, end.unwrap_or(0));
            let file = fr.finish();
            nfr = Box::new(BoundedFileReader::new_read(file, start, end).unwrap());
        } else {
            nfr = Box::new(fr);
        }
        let mut br = ByteReader::new(nfr.as_mut());
        let dmx = DemuxerObject::create(&mut br, &self.full_reg, name, is_raw);
        if dmx.is_none() {
            println!("No demuxer found!");
            return;
        }

        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.full_reg.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::*;
e08bbe03	8	use std::io::BufReader;
b043bd0a KS	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::*;
b043bd0a	18
41e41352	19	mod allreg;
b043bd0a KS	20	mod command;
b043bd0a KS	21	use command::*;
e08bbe03 KS	22	mod demux;
e08bbe03 KS	23	use demux::*;
b043bd0a KS	24
	25	struct Player {
	26	ended: bool,
e08bbe03	27	full_reg: allreg::FullRegister,
b043bd0a KS	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	94	struct Decoder<'a> {
e08bbe03	95	demuxer: DemuxerObject<'a>,
b043bd0a KS	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	}
0a70659f KS	156	if buf.get_audio_length() == 0 {
	157	return false;
	158	}
b043bd0a KS	159	let out_buf = convert_audio_frame(&buf, &self.dst_info, &self.dst_chmap).unwrap();
	160	match out_buf {
	161	NABufferType::AudioI16(abuf) => {
	162	if !self.mute && self.volume == 100 {
	163	device.queue(&abuf.get_data());
	164	} else {
	165	output_vol_i16(device, self.buf, &abuf.get_data(), self.mute, self.volume);
	166	}
	167	self.samplepos += abuf.get_length() as u64;
	168	},
	169	NABufferType::AudioPacked(abuf) => {
	170	if !self.mute && self.volume == 100 {
	171	device.queue_bytes(&abuf.get_data());
	172	} else {
	173	output_vol_u8(device, self.buf, &abuf.get_data(), self.mute, self.volume);
	174	}
	175	self.samplepos += abuf.get_length() as u64;
	176	},
	177	_ => println!("unknown buffer type"),
	178	};
	179	return false;
	180	},
	181	Err(err) => {
	182	println!(" error decoding {:?}", err);
	183	return true;
	184	},
	185	};
	186	}
	187	},
	188	Err(DemuxerError::EOF) => return true,
	189	Err(err) => {
	190	println!("demuxing error {:?}", err);
	191	return true;
	192	},
	193	};
	194	}
	195	}
	196	fn seek(&mut self, time: u64) -> bool {
	197	let ret = self.demuxer.seek(NATimePoint::Milliseconds(time));
	198	if ret.is_err() { println!(" seek error\n"); }
	199	ret.is_ok()
	200	}
	201	}
	202
	203	fn format_time(ms: u64) -> String {
	204	let s = ms / 1000;
	205	let ds = (ms % 1000) / 100;
	206	let (min, s) = (s / 60, s % 60);
be48734e KS	207	let (h, min) = (min / 60, min % 60);
	208	if h == 0 {
	209	if min == 0 {
	210	format!("{}.{}", s, ds)
	211	} else {
	212	format!("{}:{:02}.{}", min, s, ds)
	213	}
b043bd0a	214	} else {
be48734e	215	format!("{}:{:02}:{:02}.{}", h, min, s, ds)
b043bd0a KS	216	}
	217	}
	218
	219	impl Player {
	220	fn new() -> Self {
e08bbe03	221	let full_reg = allreg::FullRegister::new();
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,
e08bbe03	232	full_reg,
b043bd0a KS	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	}
e08bbe03 KS	245	let file = ret.unwrap();
e08bbe03 KS	246	let file = BufReader::new(file);
b043bd0a	247
e08bbe03	248	let mut fr = FileReader::new_read(file);
b043bd0a	249	let mut br = ByteReader::new(&mut fr);
b2d3e848 KS	250	if br.peek_byte().is_err() {
	251	println!("Cannot read {}", name);
	252	return;
	253	}
e08bbe03	254	let (is_raw, start, end) = detect_tags(&mut br);
b043bd0a	255
e08bbe03 KS	256	let mut nfr: Box<dyn ByteIO>;
	257	if start != 0 \|\| end.is_some() {
	258	//println!(" limiting range to {:X}-{:X}", start, end.unwrap_or(0));
	259	let file = fr.finish();
	260	nfr = Box::new(BoundedFileReader::new_read(file, start, end).unwrap());
	261	} else {
	262	nfr = Box::new(fr);
	263	}
	264	let mut br = ByteReader::new(nfr.as_mut());
	265	let dmx = DemuxerObject::create(&mut br, &self.full_reg, name, is_raw);
	266	if dmx.is_none() {
	267	println!("No demuxer found!");
b043bd0a KS	268	return;
b043bd0a KS	269	}
b043bd0a KS	270
	271	let mut ainfo = None;
	272	let mut dec: Option<(Box<NADecoderSupport>, Box<dyn NADecoder>)> = None;
	273	let mut stream_no = 0;
	274	let mut duration = dmx.get_duration();
	275	for i in 0..dmx.get_num_streams() {
	276	let s = dmx.get_stream(i).unwrap();
	277	let info = s.get_info();
	278	if info.is_audio() {
e08bbe03	279	let decfunc = self.full_reg.dec_reg.find_decoder(info.get_name());
b043bd0a KS	280	if decfunc.is_none() {
	281	println!("no decoder for {}", info.get_name());
	282	continue;
	283	}
	284	let mut decoder = (decfunc.unwrap())();
	285	let mut dsupp = Box::new(NADecoderSupport::new());
	286	if decoder.init(&mut dsupp, info.clone()).is_err() {
	287	println!("cannot init decoder for stream {}", i);
	288	continue;
	289	}
	290	dec = Some((dsupp, decoder));
	291	ainfo = Some(info);
	292	stream_no = i;
	293	if s.duration > 0 {
	294	duration = NATimeInfo::ts_to_time(s.duration, 1000, s.tb_num, s.tb_den);
	295	}
	296	break;
	297	}
	298	}
	299	if dec.is_none() {
	300	println!("no audio decoder found");
	301	return;
	302	}
	303	let (dsupp, decoder) = dec.unwrap();
	304
	305	let ainfo = ainfo.unwrap().get_properties().get_audio_info().unwrap();
	306	let arate = if ainfo.sample_rate > 0 { ainfo.sample_rate } else { 44100 };
	307	let ch = ainfo.channels;
	308
	309	println!("Playing {} [{}Hz {}ch]", name, arate, ch);
5a92ee55	310	let ret = AudioDevice::open(arate, ch.min(2));
b043bd0a KS	311	if ret.is_none() {
	312	println!("cannot open output");
	313	return;
	314	}
	315	let (device, dspec) = ret.unwrap();
	316	let block_limit = dmx.get_stream(stream_no).unwrap().tb_num * arate / dmx.get_stream(stream_no).unwrap().tb_den * u32::from(dspec.channels);
	317
	318	let dst_info = NAAudioInfo { sample_rate: dspec.freq as u32, channels: dspec.channels, format: SND_S16_FORMAT, block_len: 1 };
	319	let dst_chmap = if dst_info.channels == 2 {
	320	NAChannelMap::from_str("L,R").unwrap()
	321	} else {
	322	NAChannelMap::from_str("C").unwrap()
	323	};
	324	let mut decoder = Decoder {
	325	demuxer: dmx,
	326	decoder, dsupp,
	327	stream_no,
	328	dst_info, dst_chmap,
	329	samplepos: 0,
	330	arate,
	331	volume: self.volume,
	332	mute: self.mute,
	333	buf: &mut self.buf,
	334	};
	335	let mut refill_limit = arate * u32::from(dspec.channels);
	336	let underfill_limit = (arate * u32::from(dspec.channels) / 4).max(block_limit);
	337
36ac48e5 KS	338	if start_time != NATimePoint::None {
	339	let _ret = decoder.demuxer.seek(start_time);
	340	}
	341
b043bd0a KS	342	let mut eof = decoder.refill(&device);
	343	while !eof && device.size() < refill_limit {
	344	eof = decoder.refill(&device);
	345	}
	346
	347	let duration_str = if duration != 0 { format_time(duration) } else { "???".to_owned() };
	348	if !self.paused {
	349	device.resume();
	350	}
0a727e05	351	let mut no_display = false;
b043bd0a KS	352	'main: loop {
	353	let cur_time = decoder.samplepos.saturating_sub(u64::from(device.size() / 2 / u32::from(dst_info.channels)));
	354	let full_ms = cur_time * 1000 / u64::from(arate);
	355	let timestr = format_time(full_ms);
	356	let disp_vol = if self.mute { 0 } else { self.volume };
0a727e05 KS	357	if !no_display {
	358	if !self.debug {
	359	print!("> {} / {} {}% \r", timestr, duration_str, disp_vol);
	360	} else {
	361	print!("> {} / {} \|{}\| {}% \r", timestr, duration_str, device.size(), disp_vol);
	362	}
b043bd0a KS	363	}
	364	std::io::stdout().flush().unwrap();
	365	if device.size() < underfill_limit && !self.paused && refill_limit < (1 << 20) {
	366	if full_ms > 5000 {
	367	println!("underrun!");
	368	}
	369	refill_limit += refill_limit >> 1;
	370	}
	371	if device.size() < refill_limit / 2 {
	372	while !eof && device.size() < refill_limit {
	373	eof = decoder.refill(&device);
	374	}
	375	}
	376	if eof && device.size() == 0 {
	377	break 'main;
	378	}
	379	while let Ok(cmd) = cmd_receiver.try_recv() {
	380	let cur_time = decoder.samplepos.saturating_sub(u64::from(device.size() / 2 / u32::from(dst_info.channels)));
	381	match cmd {
	382	Command::Forward(val) => {
	383	device.pause();
	384	device.clear();
	385	let seekoff = match val {
	386	1 => 10,
	387	2 => 60,
	388	_ => 10 * 60,
	389	};
	390	let seek_time = cur_time * 1000 / u64::from(arate) + seekoff * 1000;
	391	let _ret = decoder.seek(seek_time);
	392	while !eof && device.size() < refill_limit {
	393	eof = decoder.refill(&device);
	394	}
	395	if eof {
	396	break 'main;
	397	}
	398	if !self.paused {
	399	device.resume();
	400	}
	401	},
	402	Command::Back(val) => {
	403	device.pause();
	404	device.clear();
	405	let seekoff = match val {
	406	1 => 10,
	407	2 => 60,
	408	_ => 10 * 60,
	409	};
	410	let seek_time = (cur_time * 1000 / u64::from(arate)).saturating_sub(seekoff * 1000);
	411	let _ret = decoder.seek(seek_time);
	412	while !eof && device.size() < refill_limit {
	413	eof = decoder.refill(&device);
	414	}
	415	if eof {
	416	break 'main;
	417	}
	418	if !self.paused {
	419	device.resume();
	420	}
	421	},
0a727e05 KS	422	Command::Seek(seek_time) => {
	423	device.pause();
	424	device.clear();
	425	let _ret = decoder.seek(seek_time);
	426	while !eof && device.size() < refill_limit {
	427	eof = decoder.refill(&device);
	428	}
	429	if eof {
	430	break 'main;
	431	}
	432	if !self.paused {
	433	device.resume();
	434	}
	435	},
b043bd0a KS	436	Command::Quit => {
	437	device.pause();
	438	self.ended = true;
	439	break 'main;
	440	},
	441	Command::Next => {
	442	device.pause();
	443	break 'main;
	444	},
	445	Command::Repeat => {
	446	device.pause();
	447	device.clear();
	448	let _ret = decoder.seek(0);
	449	while !eof && device.size() < refill_limit {
	450	eof = decoder.refill(&device);
	451	}
	452	if eof {
	453	break 'main;
	454	}
	455	if !self.paused {
	456	device.resume();
	457	}
	458	},
	459	Command::Pause => {
	460	self.paused = !self.paused;
	461	if self.paused {
	462	device.pause();
	463	} else {
	464	device.resume();
	465	}
	466	},
	467	Command::VolumeUp => {
	468	self.volume = (self.volume + 10).min(200);
	469	decoder.volume = self.volume;
	470	},
	471	Command::VolumeDown => {
	472	self.volume = self.volume.saturating_sub(10);
	473	decoder.volume = self.volume;
	474	},
	475	Command::Mute => {
	476	self.mute = !self.mute;
	477	decoder.mute = self.mute;
	478	},
	479	Command::Debug => {
	480	self.debug = !self.debug;
	481	},
98431ed5 KS	482	Command::PauseDisplay => {
	483	no_display = true;
	484	if !self.paused {
	485	device.pause();
	486	}
	487	},
	488	Command::ResumeDisplay => {
	489	no_display = false;
	490	if !self.paused {
	491	device.resume();
	492	}
	493	},
b043bd0a	494	};
0a727e05 KS	495	if !no_display {
	496	print!("\r{:60}\r", ' ');
	497	}
b043bd0a KS	498	}
	499	thread::sleep(Duration::from_millis(200));
	500	}
	501
	502	println!();
	503	}
	504	}
	505
	506	fn main() {
	507	let args: Vec<String> = std::env::args().collect();
	508
	509	let cmd_state = CmdLineState::new();
	510
	511	let (cmd_reader_thread, cmd_receiver) = start_reader();
	512	let mut player = Player::new();
	513
	514	if args.len() == 1 {
	515	println!("usage: nihav-sndplay file1 file2 ...");
	516	return;
	517	}
	518
	519	if args[1] == "--help" {
	520	println!("usage: nihav-sndplay file1 file2 ...");
	521	println!("commands:");
	522	println!(" escape / q - quit");
	523	println!(" space - pause / resume playback");
	524	println!(" enter / end - play next file");
	525	println!(" home - play current track from the beginning");
	526	println!(" left / right - seek 10 seconds forward / back");
	527	println!(" up / down - seek 1 minute forward / back");
	528	println!(" pgup / pgdn - seek 10 minutes forward / back");
	529	println!(" + / - - increase / decrease volume");
	530	println!(" m - mute output");
	531	return;
	532	}
	533
36ac48e5 KS	534	let mut aiter = args[1..].iter();
	535	let mut start_time = NATimePoint::None;
	536	while let Some(arg) = aiter.next() {
	537	match arg.as_str() {
	538	"-start" => {
	539	if let Some(arg) = aiter.next() {
	540	if let Ok(val) = arg.parse() {
	541	start_time = val;
	542	} else {
	543	println!("invalid time");
	544	}
	545	} else {
	546	println!("argument is required");
	547	}
	548	},
	549	_ => {
	550	player.play_file(arg, &cmd_receiver, start_time);
	551	if player.ended {
	552	break;
	553	}
	554	start_time = NATimePoint::None;
	555	},
	556	};
b043bd0a KS	557	}
	558	cmd_state.restore();
	559
	560	drop(cmd_reader_thread);
	561	unsafe { sdl2_sys::SDL_Quit(); }
	562	}