videoplayer/src/main.rs

   1 extern crate sdl2;
   2 extern crate nihav_core;
   3 extern crate nihav_registry;
   4 extern crate nihav_allstuff;
   5
   6 use std::env;
   7 use std::fs::File;
   8 use std::io::Write;
   9 use std::path::Path;
  10 use std::time::{Duration, Instant};
  11 use std::thread;
  12
  13 use sdl2::event::{Event, WindowEvent};
  14 use sdl2::keyboard::Keycode;
  15 use sdl2::mouse::MouseButton;
  16 use sdl2::render::{Canvas, Texture, TextureCreator};
  17 use sdl2::pixels::PixelFormatEnum;
  18 use sdl2::video::{Window, WindowContext};
  19
  20 use nihav_registry::detect;
  21 use nihav_core::frame::*;
  22 use nihav_core::io::byteio::{FileReader, ByteReader};
  23 use nihav_core::reorder::*;
  24 use nihav_core::codecs::*;
  25 use nihav_core::demuxers::*;
  26 use nihav_registry::register::*;
  27 use nihav_allstuff::*;
  28
  29 mod audiodec;
  30 use audiodec::*;
  31 mod videodec;
  32 use videodec::*;
  33 mod osd;
  34 use osd::*;
  35
  36 #[cfg(feature="debug")]
  37 macro_rules! debug_log {
  38     ($log: expr; $blk: block) => {
  39         $log.logfile.write($blk.as_bytes()).unwrap();
  40         $log.logfile.write(b"\n").unwrap();
  41     };
  42 }
  43 #[cfg(not(feature="debug"))]
  44 macro_rules! debug_log {
  45     ($log: expr; $blk: block) => {};
  46 }
  47
  48 pub enum PktSendEvent {
  49     Packet(NAPacket),
  50     GetFrames,
  51     Flush,
  52     End,
  53     ImmediateEnd,
  54     HurryUp,
  55 }
  56
  57 pub enum DecoderType {
  58     Audio(Box<dyn NADecoder + Send>),
  59     Video(Box<dyn NADecoder + Send>, Box<dyn FrameReorderer + Send>),
  60     VideoMT(Box<dyn NADecoderMT + Send>, MTFrameReorderer),
  61 }
  62
  63 pub struct DecoderStuff {
  64     pub dsupp:  Box<NADecoderSupport>,
  65     pub dec:    DecoderType,
  66 }
  67
  68 fn format_time(ms: u64) -> String {
  69     let s = ms / 1000;
  70     let ds = (ms % 1000) / 100;
  71     let (min, s) = (s / 60, s % 60);
  72     let (h, min) = (min / 60, min % 60);
  73     if h == 0 {
  74         if min == 0 {
  75             format!("{}.{}", s, ds)
  76         } else {
  77             format!("{}:{:02}.{}", min, s, ds)
  78         }
  79     } else {
  80         format!("{}:{:02}:{:02}.{}", h, min, s, ds)
  81     }
  82 }
  83
  84 const FRAME_QUEUE_LEN: usize = 25;
  85 const MAX_VOLUME: usize = 200;
  86
  87 pub type FrameRecord = (NABufferType, u64);
  88
  89 pub struct TimeKeep {
  90     ref_time:       Instant,
  91     ref_ts:         u64,
  92 }
  93
  94 impl TimeKeep {
  95     fn new() -> Self {
  96         Self {
  97             ref_time:   Instant::now(),
  98             ref_ts:     0,
  99         }
 100     }
 101     pub fn get_cur_time(&self) -> u64 {
 102         let add = self.ref_time.elapsed().as_millis() as u64;
 103         self.ref_ts + add
 104     }
 105     fn reset_ts(&mut self) {
 106         self.ref_ts = 0;
 107     }
 108     fn reset_all(&mut self, ts: u64) {
 109         self.ref_time = Instant::now();
 110         self.ref_ts   = ts;
 111     }
 112     fn set_ts(&mut self) {
 113         self.ref_ts = self.get_cur_time();
 114     }
 115     fn set_time(&mut self) {
 116         self.ref_time = Instant::now();
 117     }
 118 }
 119
 120 pub struct DispFrame<'a> {
 121     pub ts:         u64,
 122     pub is_yuv:     bool,
 123     pub valid:      bool,
 124     pub rgb_tex:    Texture<'a>,
 125     pub yuv_tex:    Texture<'a>,
 126 }
 127
 128 pub struct DispQueue<'a> {
 129     pub pool:       Vec<DispFrame<'a>>,
 130     pub first_ts:   u64,
 131     pub last_ts:    u64,
 132     pub start:      usize,
 133     pub end:        usize,
 134     pub len:        usize,
 135     pub width:      usize,
 136     pub height:     usize,
 137 }
 138
 139 impl<'a> DispQueue<'a> {
 140     fn new(texture_creator: &'a TextureCreator<WindowContext>, width: usize, height: usize, len: usize) -> Self {
 141         let mut pool = Vec::with_capacity(len);
 142         for _ in 0..len + 1 {
 143             let rgb_tex = texture_creator.create_texture_streaming(PixelFormatEnum::RGB24, width as u32, height as u32).unwrap();
 144             let yuv_tex = texture_creator.create_texture_streaming(PixelFormatEnum::IYUV, ((width + 1) & !1) as u32, ((height + 1) & !1) as u32).unwrap();
 145             pool.push(DispFrame{ ts: 0, is_yuv: false, valid: false, rgb_tex, yuv_tex });
 146         }
 147         pool[len].is_yuv = false;
 148         pool[len].rgb_tex.with_lock(None, |buffer: &mut [u8], _pitch: usize| {
 149                 for el in buffer.iter_mut() { *el = 0; }
 150             }).unwrap();
 151
 152         Self { pool, first_ts: 0, last_ts: 0, start: 0, end: 0, len, width, height }
 153     }
 154
 155     fn flush(&mut self) {
 156         self.start = 0;
 157         self.end = 0;
 158         self.first_ts = 0;
 159         self.last_ts = 0;
 160         for frm in self.pool.iter_mut() {
 161             frm.valid = false;
 162         }
 163     }
 164
 165     fn get_last_texture(&mut self, osd: &OSD) -> &Texture<'a> {
 166         if self.pool[self.len].is_yuv {
 167             if osd.is_active() {
 168                 self.pool[self.len].yuv_tex.with_lock(None, |buffer: &mut [u8], pitch: usize| {
 169                         osd.draw_yuv(buffer, pitch);
 170                     }).unwrap();
 171             }
 172             &self.pool[self.len].yuv_tex
 173         } else {
 174             if osd.is_active() {
 175                 self.pool[self.len].rgb_tex.with_lock(None, |buffer: &mut [u8], pitch: usize| {
 176                         osd.draw_rgb(buffer, pitch);
 177                     }).unwrap();
 178             }
 179             &self.pool[self.len].rgb_tex
 180         }
 181     }
 182     pub fn is_empty(&self) -> bool { self.start == self.end }
 183     pub fn is_full(&self) -> bool { self.len == 0 || self.start == (self.end + 1) % self.len }
 184     pub fn move_end(&mut self) {
 185         self.end += 1;
 186         if self.end >= self.len {
 187             self.end -= self.len;
 188         }
 189     }
 190     pub fn move_start(&mut self) {
 191         self.pool.swap(self.start, self.len);
 192         self.start += 1;
 193         if self.start >= self.len {
 194             self.start -= self.len;
 195         }
 196         if !self.is_empty() {
 197             self.first_ts = self.pool[self.start].ts;
 198         }
 199     }
 200 }
 201
 202 fn try_display(disp_queue: &mut DispQueue, canvas: &mut Canvas<Window>, osd: &mut OSD, ctime: &TimeKeep) -> Option<u64> {
 203     while !disp_queue.is_empty() {
 204         let disp_time = disp_queue.first_ts;
 205         let ctime = ctime.get_cur_time();
 206         if disp_time > ctime + 10 {
 207             return Some(disp_time - ctime);
 208         } else if disp_time + 10 < ctime {
 209             disp_queue.move_start();
 210         } else {
 211             if osd.is_active() {
 212                 osd.prepare(ctime);
 213             }
 214             let frm = &mut disp_queue.pool[disp_queue.start];
 215             let texture = if frm.is_yuv {
 216                     if osd.is_active() {
 217                         frm.yuv_tex.with_lock(None, |buffer: &mut [u8], pitch: usize| {
 218                                 osd.draw_yuv(buffer, pitch);
 219                             }).unwrap();
 220                     }
 221                     &frm.yuv_tex
 222                 } else {
 223                     if osd.is_active() {
 224                         frm.rgb_tex.with_lock(None, |buffer: &mut [u8], pitch: usize| {
 225                                 osd.draw_rgb(buffer, pitch);
 226                             }).unwrap();
 227                     }
 228                     &frm.rgb_tex
 229                 };
 230             canvas.clear();
 231             canvas.copy(texture, None, None).unwrap();
 232             canvas.present();
 233
 234             disp_queue.move_start();
 235             if !disp_queue.is_empty() {
 236                 return Some((disp_queue.first_ts - ctime).saturating_sub(2));
 237             } else {
 238                 return None;
 239             }
 240         }
 241     }
 242     None
 243 }
 244
 245 struct Player {
 246     sdl_context:    sdl2::Sdl,
 247     vsystem:        sdl2::VideoSubsystem,
 248     asystem:        sdl2::AudioSubsystem,
 249     xpos:           Option<i32>,
 250     ypos:           Option<i32>,
 251
 252     acontrol:       AudioControl,
 253     vcontrol:       VideoControl,
 254
 255     play_video:     bool,
 256     play_audio:     bool,
 257     has_video:      bool,
 258     has_audio:      bool,
 259     video_str:      u32,
 260     audio_str:      u32,
 261
 262     vthreads:       usize,
 263     use_mt:         bool,
 264
 265     paused:         bool,
 266     mute:           bool,
 267     volume:         usize,
 268     end:            bool,
 269
 270     tkeep:          TimeKeep,
 271
 272     debug:          bool,
 273     osd:            OSD,
 274
 275     #[cfg(feature="debug")]
 276     logfile:        File,
 277 }
 278
 279 impl Player {
 280     fn new() -> Self {
 281         let sdl_context = sdl2::init().unwrap();
 282         let vsystem = sdl_context.video().unwrap();
 283         let asystem = sdl_context.audio().unwrap();
 284         vsystem.disable_screen_saver();
 285         let acontrol = AudioControl::new(None, None, &asystem);
 286         let vcontrol = VideoControl::new(None, 0, 0, 0, 0);
 287         Self {
 288             sdl_context, asystem, vsystem,
 289             xpos:           None,
 290             ypos:           None,
 291
 292             acontrol, vcontrol,
 293
 294             play_video:     true,
 295             play_audio:     true,
 296             has_video:      false,
 297             has_audio:      false,
 298             video_str:      0,
 299             audio_str:      0,
 300
 301             vthreads:       3,
 302             use_mt:         true,
 303
 304             paused:         false,
 305             mute:           false,
 306             volume:         100,
 307             end:            false,
 308
 309             tkeep:          TimeKeep::new(),
 310
 311             debug:          false,
 312             osd:            OSD::new(),
 313
 314             #[cfg(feature="debug")]
 315             logfile:        File::create("debug.log").unwrap(),
 316         }
 317     }
 318     fn seek(&mut self, off: u64, fwd: bool, dmx: &mut Demuxer, disp_queue: &mut DispQueue) {
 319         let cur_time = self.tkeep.get_cur_time();
 320         let seektime = if fwd { cur_time + off * 1000 } else {
 321                 cur_time.saturating_sub(off * 1000) };
 322         debug_log!(self; {format!(" seek to {}", seektime)});
 323
 324         let ret = dmx.seek(NATimePoint::Milliseconds(seektime));
 325         if ret.is_err() {
 326             println!(" seek error");
 327             return;
 328         }
 329
 330         self.acontrol.flush();
 331         self.vcontrol.flush();
 332         disp_queue.flush();
 333
 334         self.tkeep.reset_ts();
 335         self.prefill(dmx, disp_queue);
 336         if !disp_queue.is_empty() {
 337             self.tkeep.reset_all(disp_queue.first_ts);
 338         } else {
 339             let mut iterations = 0;
 340             let mut time = self.acontrol.get_time();
 341             while time.is_none() {
 342                 iterations += 1;
 343                 std::thread::yield_now();
 344                 if iterations > 1000000 { println!(" still no time set?!"); break; }
 345                 time = self.acontrol.get_time();
 346             }
 347             if let Some(time) = time {
 348                 self.tkeep.reset_all(time);
 349             }
 350         }
 351         if !self.paused {
 352             self.acontrol.resume();
 353         }
 354     }
 355     fn prefill(&mut self, dmx: &mut Demuxer, disp_queue: &mut DispQueue) {
 356         debug_log!(self; {" prefilling"});
 357         while self.vcontrol.get_queue_size() < FRAME_QUEUE_LEN {
 358             let mut try_send = self.acontrol.get_queue_size() < FRAME_QUEUE_LEN && (!self.has_video || (!self.vcontrol.is_filled(FRAME_QUEUE_LEN) && !disp_queue.is_full()));
 359
 360             if !self.vcontrol.try_send_queued() && self.vcontrol.get_queue_size() > FRAME_QUEUE_LEN / 2 {
 361                 try_send = false;
 362             }
 363             if !self.acontrol.try_send_queued() && self.acontrol.get_queue_size() > FRAME_QUEUE_LEN / 2 {
 364                 try_send = false;
 365             }
 366             if try_send {
 367                 match dmx.get_frame() {
 368                     Err(DemuxerError::EOF) => break,
 369                     Err(_) => break,
 370                     Ok(pkt) => {
 371                         let streamno = pkt.get_stream().get_id();
 372                         if self.has_video && streamno == self.video_str {
 373                             self.vcontrol.try_send_video(PktSendEvent::Packet(pkt));
 374                         } else if self.has_audio && streamno == self.audio_str {
 375                             self.acontrol.try_send_audio(PktSendEvent::Packet(pkt));
 376                         }
 377                     }
 378                 };
 379             }
 380             self.vcontrol.fill(disp_queue);
 381
 382             if !try_send {
 383                 break;
 384             }
 385         }
 386         if self.has_video {
 387             while self.vcontrol.get_queue_size() > 0 && !disp_queue.is_full() {
 388                 self.vcontrol.try_send_queued();
 389                 self.vcontrol.fill(disp_queue);
 390                 std::thread::sleep(Duration::from_millis(10));
 391             }
 392             self.vcontrol.wait_for_frames();
 393             self.vcontrol.fill(disp_queue);
 394         }
 395         debug_log!(self; {format!(" prefilling done, frames {}-{} audio {}", disp_queue.start, disp_queue.end, self.acontrol.get_fill())});
 396     }
 397     fn toggle_pause(&mut self) {
 398         self.paused = !self.paused;
 399         if self.paused {
 400             self.vsystem.enable_screen_saver();
 401             self.tkeep.set_ts();
 402         } else {
 403             self.vsystem.disable_screen_saver();
 404             self.tkeep.set_time();
 405         }
 406         if self.paused {
 407             self.acontrol.pause();
 408         } else {
 409             self.acontrol.resume();
 410         }
 411     }
 412     fn handle_events(&mut self, event_pump: &mut sdl2::EventPump, canvas: &mut Canvas<Window>, dmx: &mut Demuxer, disp_queue: &mut DispQueue) -> bool {
 413         for event in event_pump.poll_iter() {
 414             if let Event::Quit {..} = event {
 415                 self.end = true;
 416                 println!();
 417                 return true;
 418             }
 419             if let Event::Window {win_event: WindowEvent::Exposed, ..} = event {
 420                 canvas.clear();
 421                 canvas.copy(disp_queue.get_last_texture(&self.osd), None, None).unwrap();
 422                 canvas.present();
 423             }
 424             if let Event::MouseButtonDown {mouse_btn: MouseButton::Right, ..} = event {
 425                 self.toggle_pause();
 426             }
 427             if let Event::KeyDown {keycode: Some(keycode), ..} = event {
 428                 match keycode {
 429                     Keycode::Escape | Keycode::Q => {
 430                         self.end = true;
 431                         println!();
 432                         return true;
 433                     },
 434                     Keycode::Return => return true,
 435                     Keycode::Right      => { self.seek(10, true,  dmx, disp_queue); },
 436                     Keycode::Left       => { self.seek(10, false, dmx, disp_queue); },
 437                     Keycode::Up         => { self.seek(60, true,  dmx, disp_queue); },
 438                     Keycode::Down       => { self.seek(60, false, dmx, disp_queue); },
 439                     Keycode::PageUp     => { self.seek(600, true,  dmx, disp_queue); },
 440                     Keycode::PageDown   => { self.seek(600, false, dmx, disp_queue); },
 441                     Keycode::Space => { self.toggle_pause(); },
 442                     Keycode::Plus | Keycode::KpPlus => {
 443                         self.volume = (self.volume + 10).min(MAX_VOLUME);
 444                         if !self.mute {
 445                             self.acontrol.set_volume(self.volume);
 446                         }
 447                     },
 448                     Keycode::Minus | Keycode::KpMinus => {
 449                         self.volume = self.volume.saturating_sub(10);
 450                         if !self.mute {
 451                             self.acontrol.set_volume(self.volume);
 452                         }
 453                     },
 454                     Keycode::D => {
 455                         self.debug = !self.debug;
 456                     },
 457                     Keycode::M => {
 458                         self.mute = !self.mute;
 459                         if self.mute {
 460                             self.acontrol.set_volume(0);
 461                         } else {
 462                             self.acontrol.set_volume(self.volume);
 463                         }
 464                     },
 465                     Keycode::H => {
 466                         self.vcontrol.try_send_video(PktSendEvent::HurryUp);
 467                     },
 468                     Keycode::O => {
 469                         self.osd.toggle();
 470                     },
 471                     _ => {},
 472                 };
 473                 if !self.paused {
 474                     print!("{:60}\r", ' ');
 475                     std::io::stdout().flush().unwrap();
 476                 }
 477             }
 478         }
 479         false
 480     }
 481     fn play(&mut self, name: &str, start_time: NATimePoint) {
 482         debug_log!(self; {format!("Playing {}", name)});
 483
 484         // prepare data source
 485         let path = Path::new(name);
 486         let mut file = File::open(path).unwrap();
 487         let dmx_fact;
 488         let mut fr = FileReader::new_read(&mut file);
 489         let mut br = ByteReader::new(&mut fr);
 490         let res = detect::detect_format(name, &mut br);
 491         if res.is_none() {
 492             println!("cannot detect format for {}", name);
 493             return;
 494         }
 495         let (dmx_name, _score) = res.unwrap();
 496         debug_log!(self; {format!(" found demuxer {} with score {:?}", dmx_name, _score)});
 497         println!("trying demuxer {} on {}", dmx_name, name);
 498
 499         let mut dmx_reg = RegisteredDemuxers::new();
 500         nihav_register_all_demuxers(&mut dmx_reg);
 501         let mut dec_reg = RegisteredDecoders::new();
 502         nihav_register_all_decoders(&mut dec_reg);
 503         let mut mtdec_reg = RegisteredMTDecoders::new();
 504         if self.use_mt {
 505             nihav_register_all_mt_decoders(&mut mtdec_reg);
 506         }
 507
 508         let ret = dmx_reg.find_demuxer(dmx_name);
 509         if ret.is_none() {
 510             println!("error finding {} demuxer", dmx_name);
 511             return;
 512         }
 513         dmx_fact = ret.unwrap();
 514         br.seek(SeekFrom::Start(0)).unwrap();
 515         let ret = create_demuxer(dmx_fact, &mut br);
 516         if ret.is_err() {
 517             println!("error creating demuxer");
 518             return;
 519         }
 520         let mut dmx = ret.unwrap();
 521         if start_time != NATimePoint::None {
 522             debug_log!(self; {format!(" start seek to {}", start_time)});
 523             if dmx.seek(start_time).is_err() {
 524                 println!("initial seek failed");
 525             }
 526         }
 527
 528         let mut width = 640;
 529         let mut height = 480;
 530         let mut tb_num = 0;
 531         let mut tb_den = 0;
 532         let mut ainfo: Option<NAAudioInfo> = None;
 533
 534         let mut video_dec: Option<DecoderStuff> = None;
 535         let mut audio_dec: Option<DecoderStuff> = None;
 536
 537         let duration = dmx.get_duration();
 538         if duration != 0 {
 539             println!(" total duration {}", format_time(duration));
 540         }
 541         self.has_video = false;
 542         self.has_audio = false;
 543         for i in 0..dmx.get_num_streams() {
 544             let s = dmx.get_stream(i).unwrap();
 545             let info = s.get_info();
 546             let decfunc = dec_reg.find_decoder(info.get_name());
 547             let decfunc_mt = mtdec_reg.find_decoder(info.get_name());
 548             println!("stream {} - {} {}", i, s, info.get_name());
 549             debug_log!(self; {format!(" stream {} - {} {}", i, s, info.get_name())});
 550             let str_id = s.get_id();
 551             if info.is_video() {
 552                 if video_dec.is_none() && self.play_video {
 553                     if let Some(decfunc) = decfunc_mt {
 554                         let mut dec = (decfunc)();
 555                         let mut dsupp = Box::new(NADecoderSupport::new());
 556                         let props = info.get_properties().get_video_info().unwrap();
 557                         if props.get_width() != 0 {
 558                             width  = props.get_width();
 559                             height = props.get_height();
 560                         }
 561                         if dec.init(&mut dsupp, info.clone(), self.vthreads).is_ok() {
 562                             video_dec = Some(DecoderStuff{ dsupp, dec: DecoderType::VideoMT(dec, MTFrameReorderer::new()) });
 563                             self.video_str = str_id;
 564                             let (tbn, tbd) = s.get_timebase();
 565                             tb_num = tbn;
 566                             tb_den = tbd;
 567                             self.has_video = true;
 568                             continue;
 569                         } else {
 570                             println!("failed to create multi-threaded decoder, falling back");
 571                         }
 572                     }
 573                     if let Some(decfunc) = decfunc {
 574                         let mut dec = (decfunc)();
 575                         let mut dsupp = Box::new(NADecoderSupport::new());
 576                         let props = info.get_properties().get_video_info().unwrap();
 577                         if props.get_width() != 0 {
 578                             width  = props.get_width();
 579                             height = props.get_height();
 580                         }
 581                         let desc = get_codec_description(info.get_name());
 582                         let (reorder_depth, reord) = if desc.is_none() || (desc.unwrap().caps & CODEC_CAP_COMPLEX_REORDER) == 0 {
 583                                 let reord: Box<dyn FrameReorderer + Send> = Box::new(IPBReorderer::new());
 584                                 (3, reord)
 585                             } else {
 586                                 let reord: Box<dyn FrameReorderer + Send> = Box::new(ComplexReorderer::new());
 587                                 (16, reord)
 588                             };
 589                         dsupp.pool_u8 = NAVideoBufferPool::new(reorder_depth);
 590                         dsupp.pool_u16 = NAVideoBufferPool::new(reorder_depth);
 591                         dsupp.pool_u32 = NAVideoBufferPool::new(reorder_depth);
 592                         dec.init(&mut dsupp, info).unwrap();
 593                         video_dec = Some(DecoderStuff{ dsupp, dec: DecoderType::Video(dec, reord) });
 594                         self.video_str = str_id;
 595                         let (tbn, tbd) = s.get_timebase();
 596                         tb_num = tbn;
 597                         tb_den = tbd;
 598                         self.has_video = true;
 599                     } else {
 600                         println!("no video decoder for {} found!", info.get_name());
 601                     }
 602                 }
 603             } else if info.is_audio() {
 604                 if audio_dec.is_none() && self.play_audio {
 605                     if let Some(decfunc) = decfunc {
 606                         let mut dec = (decfunc)();
 607                         let mut dsupp = Box::new(NADecoderSupport::new());
 608                         ainfo = info.get_properties().get_audio_info();
 609                         dec.init(&mut dsupp, info).unwrap();
 610                         audio_dec = Some(DecoderStuff{ dsupp, dec: DecoderType::Audio(dec) });
 611                         self.audio_str = str_id;
 612                         self.has_audio = true;
 613                     } else {
 614                         println!("no audio decoder for {} found!", info.get_name());
 615                     }
 616                 }
 617             } else {
 618                 println!("decoder {} not found", info.get_name());
 619             }
 620         }
 621         if !self.has_video && !self.has_audio {
 622             println!("No playable streams found.");
 623             return;
 624         }
 625
 626         while (width <= 384) && (height <= 288) {
 627             width <<= 1;
 628             height <<= 1;
 629         }
 630
 631         // prepare playback structure
 632         let mut new_vcontrol = VideoControl::new(video_dec, width, height, tb_num, tb_den);
 633         std::mem::swap(&mut self.vcontrol, &mut new_vcontrol);
 634
 635         let mut new_acontrol = AudioControl::new(audio_dec, ainfo, &self.asystem);
 636         std::mem::swap(&mut self.acontrol, &mut new_acontrol);
 637
 638         if self.mute {
 639             self.acontrol.set_volume(0);
 640         } else {
 641             self.acontrol.set_volume(self.volume);
 642         }
 643
 644         let fname = path.file_name();
 645         let wname = if let Some(fname) = fname {
 646                 "NihAV player - ".to_owned() + fname.to_str().unwrap()
 647             } else {
 648                 "NihAV player".to_owned()
 649             };
 650         let mut builder = self.vsystem.window(&wname, width as u32, height as u32);
 651         let window = if let (Some(xpos), Some(ypos)) = (self.xpos, self.ypos) {
 652                 builder.position(xpos, ypos).build().unwrap()
 653             } else {
 654                 builder.position_centered().build().unwrap()
 655             };
 656         let mut canvas = window.into_canvas().build().unwrap();
 657         let texture_creator = canvas.texture_creator();
 658         let mut disp_q = DispQueue::new(&texture_creator, width, height, if self.has_video { FRAME_QUEUE_LEN } else { 0 });
 659         if !self.has_video {
 660             canvas.clear();
 661             canvas.copy(disp_q.get_last_texture(&self.osd), None, None).unwrap();
 662             canvas.present();
 663         }
 664
 665         self.has_audio = self.acontrol.has_audio();
 666         if !self.has_video && !self.has_audio {
 667             println!("No playable streams.");
 668             return;
 669         }
 670
 671         // play
 672         self.prefill(&mut dmx, &mut disp_q);
 673         self.tkeep.reset_all(0);
 674         if !self.paused {
 675             self.acontrol.resume();
 676         }
 677         let mut event_pump = self.sdl_context.event_pump().unwrap();
 678         let mut last_disp = Instant::now();
 679         let mut has_data = true;
 680         'main: loop {
 681             if self.handle_events(&mut event_pump, &mut canvas, &mut dmx, &mut disp_q) {
 682                 println!();
 683                 break 'main;
 684             }
 685             if !self.paused {
 686                 let mut try_send = self.acontrol.get_queue_size() < FRAME_QUEUE_LEN && self.vcontrol.get_queue_size() < FRAME_QUEUE_LEN;
 687                 if !self.vcontrol.try_send_queued() && self.vcontrol.is_filled(FRAME_QUEUE_LEN) {
 688                     try_send = false;
 689                 }
 690                 if !self.acontrol.try_send_queued() {
 691                     try_send = false;
 692                 }
 693                 while has_data && try_send {
 694                     match dmx.get_frame() {
 695                         Err(DemuxerError::EOF) => {
 696                             self.vcontrol.try_send_video(PktSendEvent::End);
 697                             self.acontrol.try_send_audio(PktSendEvent::End);
 698                             has_data = false;
 699                         },
 700                         Err(err) => {
 701                             println!("demuxer error {:?}", err);
 702                             if err == DemuxerError::IOError {
 703                                 self.vcontrol.try_send_video(PktSendEvent::End);
 704                                 self.acontrol.try_send_audio(PktSendEvent::End);
 705                                 has_data = false;
 706                             }
 707                         },
 708                         Ok(pkt) => {
 709                             let streamno = pkt.get_stream().get_id();
 710                             if self.has_video && streamno == self.video_str {
 711                                 debug_log!(self; {"  sending video packet"});
 712                                 self.vcontrol.try_send_video(PktSendEvent::Packet(pkt));
 713                                 if self.vcontrol.is_filled(FRAME_QUEUE_LEN) {
 714                                     try_send = false;
 715                                 }
 716                             } else if self.has_audio && streamno == self.audio_str {
 717                                 debug_log!(self; {"  sending audio packet"});
 718                                 self.acontrol.try_send_audio(PktSendEvent::Packet(pkt));
 719                                 if self.acontrol.get_queue_size() >= FRAME_QUEUE_LEN {
 720                                     try_send = false;
 721                                 }
 722                             }
 723                         }
 724                     };
 725                 }
 726                 self.vcontrol.fill(&mut disp_q);
 727                 let mut sleep_time = 25;
 728                 debug_log!(self; {format!(" time {}", self.tkeep.get_cur_time())});
 729                 if self.has_video {
 730                     debug_log!(self; {format!("  disp queue {}-{}, {}-{} vqueue fill {}", disp_q.first_ts, disp_q.last_ts, disp_q.start, disp_q.end, self.vcontrol.get_queue_size())});
 731                     let ret = try_display(&mut disp_q, &mut canvas, &mut self.osd, &self.tkeep);
 732                     if let Some(next_time) = ret {
 733                         sleep_time = sleep_time.min(next_time);
 734                     }
 735                 }
 736                 if self.has_audio {
 737                     let time_left = self.acontrol.get_time_left();
 738                     debug_log!(self; {format!("  audio left {}", time_left)});
 739                     sleep_time = sleep_time.min(time_left);
 740                 }
 741                 debug_log!(self; {format!("  sleep {}ms", sleep_time)});
 742                 if last_disp.elapsed().as_millis() >= 10 {
 743                     let c_time = self.tkeep.get_cur_time();
 744
 745                     if !self.debug {
 746                         print!(" {}  {}% \r", format_time(c_time), self.acontrol.get_volume());
 747                     } else {
 748                         print!(" {}  {}  {}% {:3} {:6}\r", format_time(c_time), if self.vcontrol.is_yuv() { 'Y' } else { 'R' }, self.acontrol.get_volume(), (disp_q.end + disp_q.len - disp_q.start) % disp_q.len, self.acontrol.get_fill());
 749                     }
 750                     std::io::stdout().flush().unwrap();
 751                     last_disp = Instant::now();
 752                 }
 753                 let mut end = true;
 754                 if self.has_video && !self.vcontrol.is_video_end() {
 755                     end = false;
 756                 }
 757                 if self.has_audio && !self.acontrol.is_audio_end() {
 758                     end = false;
 759                 }
 760                 if end {
 761                     break;
 762                 }
 763                 thread::sleep(Duration::from_millis(sleep_time));
 764             } else {
 765                 thread::sleep(Duration::from_millis(20));
 766             }
 767         }
 768         let (xpos, ypos) = canvas.into_window().position();
 769         self.xpos = Some(xpos);
 770         self.ypos = Some(ypos);
 771         println!();
 772         std::mem::swap(&mut self.vcontrol, &mut new_vcontrol);
 773         new_vcontrol.finish();
 774         std::mem::swap(&mut self.acontrol, &mut new_acontrol);
 775         new_acontrol.finish();
 776     }
 777 }
 778
 779 fn main() {
 780     let args: Vec<String> = env::args().collect();
 781
 782     if args.len() == 1 {
 783         println!("usage: nihav-player file1 file2 ...");
 784         return;
 785     }
 786
 787     let mut player = Player::new();
 788
 789     let mut aiter = args.iter().skip(1);
 790     let mut seek_time = NATimePoint::None;
 791     while let Some(arg) = aiter.next() {
 792         match arg.as_str() {
 793             "-an" => { player.play_audio = false; },
 794             "-ae" => { player.play_audio = true; },
 795             "-vn" => { player.play_video = false; },
 796             "-ve" => { player.play_video = true; },
 797             "-seek" => {
 798                 if let Some(arg) = aiter.next() {
 799                     if let Ok(time) = arg.parse::<NATimePoint>() {
 800                         seek_time = time;
 801                     } else {
 802                         println!("wrong seek time");
 803                         seek_time = NATimePoint::None;
 804                     }
 805                 }
 806             },
 807             "-vol" => {
 808                 if let Some(arg) = aiter.next() {
 809                     if let Ok(vol) = arg.parse::<usize>() {
 810                         player.volume = vol.min(MAX_VOLUME);
 811                     } else {
 812                         println!("wrong volume");
 813                     }
 814                 }
 815             },
 816             "-debug" => {
 817                 player.debug = true;
 818             },
 819             "-nodebug" => {
 820                 player.debug = false;
 821             },
 822             "-mt" => {
 823                 player.use_mt = true;
 824             },
 825             "-nomt" => {
 826                 player.use_mt = false;
 827             },
 828             "-threads" => {
 829                 if let Some(arg) = aiter.next() {
 830                     if let Ok(val) = arg.parse::<usize>() {
 831                         player.vthreads = val.max(1);
 832                     } else {
 833                         println!("wrong number of threads");
 834                     }
 835                 }
 836             },
 837             _ => {
 838                 player.play(arg, seek_time);
 839                 if player.end { break; }
 840                 seek_time = NATimePoint::None;
 841             },
 842         };
 843     }
 844 }