src/main.rs

   1 extern crate sdl;
   2 extern crate nihav_core;
   3 extern crate nihav_allstuff;
   4
   5 use sdl::video::*;
   6 use sdl::audio::{DesiredAudioSpec, Channels, AudioFormat, AudioCallback};
   7 use sdl::event::{Event, Key};
   8
   9 use std::env;
  10 use std::fs::File;
  11 use std::path::Path;
  12 use std::time::{Duration, SystemTime};
  13 use std::thread;
  14 use std::sync::mpsc;
  15 use std::sync::{Arc, Mutex};
  16 use std::sync::atomic::{AtomicBool, Ordering};
  17 use std::str::FromStr;
  18
  19 use nihav_core::detect;
  20 use nihav_core::formats::*;
  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_core::scale::*;
  27 use nihav_core::soundcvt::*;
  28 use nihav_allstuff::*;
  29
  30 const AUDIO_BUF_SIZE: usize = 1024;
  31
  32 struct AudioFIFO {
  33     data:       Vec<u8>,
  34     max_len:    usize,
  35     pos:        usize,
  36     end:        usize,
  37     done:       bool,
  38     full:       bool,
  39 }
  40
  41 impl AudioFIFO {
  42     fn new(len: usize, max_len: usize) -> Self {
  43         Self { data: vec![0; len], max_len, pos: 0, end: 0, done: false, full: false }
  44     }
  45     fn add(&mut self, src: &[u8]) -> bool {
  46         if self.done || self.full { return true; }
  47         if self.pos > 0 {
  48             for i in 0..(self.end - self.pos) {
  49                 self.data[i] = self.data[i + self.pos];
  50             }
  51             self.end -= self.pos;
  52             self.pos = 0;
  53         }
  54         if self.end + src.len() > self.max_len {
  55             self.full = true;
  56             return false;
  57         }
  58         if self.end + src.len() > self.data.len() { self.data.resize(self.end + src.len(), 0); }
  59         (&mut self.data[self.end..][..src.len()]).copy_from_slice(src);
  60         self.end += src.len();
  61         true
  62     }
  63     fn consume(&mut self, dst: &mut [u8]) -> bool {
  64         if self.done { for el in dst.iter_mut() { *el = 0; } return true; }
  65         let size = dst.len();
  66         if self.end - self.pos < size { return false; }
  67         dst.copy_from_slice(&self.data[self.pos..][..size]);
  68         self.pos += size;
  69         if self.pos >= self.max_len / 2 { self.full = false; }
  70         true
  71     }
  72     fn finish(&mut self) {
  73         self.done = true;
  74     }
  75 }
  76
  77 struct AudioConsumer {
  78     afifo: Arc<Mutex<AudioFIFO>>,
  79 }
  80
  81 impl AudioConsumer {
  82     fn new(afifo: Arc<Mutex<AudioFIFO>>) -> Self { Self { afifo } }
  83 }
  84
  85 impl AudioCallback for AudioConsumer {
  86     fn callback(&mut self, out: &mut [u8]) {
  87         let mut done = false;
  88         while !done {
  89             let ret = self.afifo.lock();
  90             if let Ok(mut afifo) = ret {
  91                 done = afifo.consume(out);
  92             }
  93             if !done { thread::sleep(Duration::from_millis(400)); }
  94         }
  95     }
  96 }
  97
  98 impl Drop for AudioConsumer {
  99     fn drop(&mut self) {
 100         let ret = self.afifo.lock();
 101         if let Ok(mut afifo) = ret {
 102             afifo.finish();
 103         }
 104     }
 105 }
 106
 107 struct DecoderStuff {
 108     dsupp:  Box<NADecoderSupport>,
 109     dec:    Box<dyn NADecoder + Send>,
 110     reord:  Box<dyn FrameReorderer + Send>,
 111 }
 112
 113 enum SendEvent {
 114     Packet(NAPacket),
 115     EOF,
 116 }
 117
 118 enum DisplayEvent {
 119     RGB(u64, NABufferRef<Surface>),
 120     YUV(u64, NABufferRef<Overlay>),
 121     Audio(NABufferType),
 122 }
 123
 124 impl DisplayEvent {
 125     fn get_time(&self) -> u64 {
 126         match *self {
 127             DisplayEvent::RGB(time, _) => time,
 128             DisplayEvent::YUV(time, _) => time,
 129             _ => 0,
 130         }
 131     }
 132 }
 133
 134 struct CommonMessages {
 135     receiver:   mpsc::Receiver<SendEvent>,
 136     esend:      mpsc::SyncSender<DisplayEvent>,
 137     ev_mtx:     Arc<Mutex<isize>>,
 138     finished:   Arc<AtomicBool>,
 139 }
 140
 141 fn add_audio<T:Copy>(amtx: &mut Arc<Mutex<AudioFIFO>>, data: &[T]) {
 142     let len = std::mem::size_of::<T>() * data.len();
 143     let mut done = false;
 144     while !done {
 145         let ret = amtx.try_lock();
 146         if let Ok(mut afifo) = ret {
 147             unsafe {
 148                 let u8_ptr = data.as_ptr();
 149                 let u8_data = std::mem::transmute((u8_ptr, len));
 150                 done = afifo.add(u8_data);
 151             }
 152         }
 153         if !done { std::thread::sleep(Duration::from_millis(100)); }
 154     }
 155 }
 156
 157 fn open_audio(arate: u32, amtx: Arc<Mutex<AudioFIFO>>) -> NAAudioInfo {
 158     let dspec = DesiredAudioSpec {
 159             freq: arate as i32, format: AudioFormat::S16Lsb, channels: Channels::Stereo, samples: AUDIO_BUF_SIZE as u16,
 160             callback: Box::new(AudioConsumer::new(amtx))
 161         };
 162     let tspec = sdl::audio::open(dspec).unwrap();
 163 //println!("target spec: {} Hz fmt {:X} {} ch {} samp {} size", tspec.freq, tspec.format as u32, if tspec.channels == Channels::Stereo { 2 } else { 1 }, tspec.samples, tspec.size);
 164     sdl::audio::pause(true);
 165     let dst_ch = if tspec.channels == Channels::Stereo { 2 } else { 1 };
 166     let snd_fmt = match tspec.format {
 167             AudioFormat::U8     => SND_U8_FORMAT,
 168             AudioFormat::S8     => unimplemented!(),
 169             AudioFormat::U16Lsb => unimplemented!(),
 170             AudioFormat::S16Lsb => SND_S16_FORMAT,
 171             AudioFormat::U16Msb => unimplemented!(),
 172             AudioFormat::S16Msb => NASoniton { bits: 16, be: true, packed: false, planar: false, float: false, signed: true },
 173         };
 174     NAAudioInfo { sample_rate: tspec.freq as u32, channels: dst_ch, format: snd_fmt, block_len: 1024 }
 175 }
 176
 177 fn start_audio_dec(audio_dec: Option<DecoderStuff>, dst_info: NAAudioInfo, cmsg: CommonMessages) -> thread::JoinHandle<()> {
 178     thread::spawn(move || {
 179             let mut audio_dec = audio_dec.unwrap();
 180             let dst_chmap = if dst_info.channels == 2 {
 181                     NAChannelMap::from_str("L,R").unwrap()
 182                 } else {
 183                     NAChannelMap::from_str("C").unwrap()
 184                 };
 185             loop {
 186                 let ret = cmsg.receiver.recv();
 187                 if ret.is_err() { break; }
 188                 if let Ok(SendEvent::EOF) = ret { break; }
 189                 let pkt = if let Ok(SendEvent::Packet(pkt)) = ret { pkt } else { unreachable!(); };
 190                 let ret = audio_dec.dec.decode(&mut audio_dec.dsupp, &pkt);
 191                 if let Ok(frm) = ret {
 192                     let buf = frm.get_buffer();
 193                     let out_buf = convert_audio_frame(&buf, &dst_info, &dst_chmap).unwrap();
 194                     cmsg.esend.send(DisplayEvent::Audio(out_buf)).unwrap();
 195                     let mut count = cmsg.ev_mtx.lock().unwrap();
 196                     *count += 1;
 197                     drop(count);
 198                     thread::yield_now();
 199                 } else {
 200                     println!("error decoding audio");
 201                 }
 202             }
 203             cmsg.finished.store(true, Ordering::Relaxed);
 204         })
 205 }
 206
 207 fn start_video_dec(video_dec: Option<DecoderStuff>, ifmt: Option<NAVideoInfo>, width: usize, height: usize, tb_num: u32, tb_den: u32, cmsg: CommonMessages, scr_mtx: Arc<Mutex<NABufferRef<Surface>>>) -> thread::JoinHandle<()> {
 208     thread::spawn(move || {
 209             let mut ifmt = ifmt.unwrap();
 210             let mut video_dec = video_dec.unwrap();
 211             let rgb32_fmt = NAPixelFormaton { model: ColorModel::RGB(RGBSubmodel::RGB), components: 3,
 212                                             comp_info: [
 213                                                 Some(NAPixelChromaton { h_ss: 0, v_ss: 0, packed: true, depth: 8, shift: 0, comp_offs: 0, next_elem: 4 }),
 214                                                 Some(NAPixelChromaton { h_ss: 0, v_ss: 0, packed: true, depth: 8, shift: 0, comp_offs: 1, next_elem: 4 }),
 215                                                 Some(NAPixelChromaton { h_ss: 0, v_ss: 0, packed: true, depth: 8, shift: 0, comp_offs: 2, next_elem: 4 }),
 216                                                 None, None
 217                                             ], elem_size: 4, be: false, alpha: false, palette: false };
 218             let ofmt_rgb = ScaleInfo { width, height, fmt: rgb32_fmt };
 219             let ofmt_yuv = ScaleInfo { width, height, fmt: YUV420_FORMAT };
 220
 221             let sc_ifmt = ScaleInfo { width: ifmt.get_width(), height: ifmt.get_height(), fmt: ifmt.get_format() };
 222             let mut do_yuv = if let ColorModel::YUV(_) = ifmt.get_format().get_model() { true } else { false };
 223             let ofmt = if do_yuv { ofmt_yuv } else { ofmt_rgb };
 224             let mut opic = alloc_video_buffer(NAVideoInfo::new(width, height, false, ofmt.fmt), 4).unwrap();
 225             let mut scaler = NAScale::new(sc_ifmt, ofmt).unwrap();
 226             loop {
 227                 let ret = cmsg.receiver.recv();
 228                 if ret.is_err() { break; }
 229                 if let Ok(SendEvent::EOF) = ret { break; }
 230                 let pkt = if let Ok(SendEvent::Packet(pkt)) = ret { pkt } else { unreachable!() };
 231                 let ret = video_dec.dec.decode(&mut video_dec.dsupp, &pkt);
 232                 if let Ok(frm) = ret {
 233                     video_dec.reord.add_frame(frm);
 234                     while let Some(frm) = video_dec.reord.get_frame() {
 235                         let bt = frm.get_buffer();
 236                         if let NABufferType::None = bt { continue; }
 237                         let vinfo = bt.get_video_info().unwrap();
 238                         if ifmt.get_width() != vinfo.get_width() ||
 239                             ifmt.get_height() != vinfo.get_height() ||
 240                             ifmt.get_format() != vinfo.get_format() {
 241 println!("reinit scaler!");
 242                             ifmt = vinfo.clone();
 243                             let sc_ifmt = ScaleInfo { width: ifmt.get_width(), height: ifmt.get_height(), fmt: ifmt.get_format() };
 244                             do_yuv = if let ColorModel::YUV(_) = ifmt.get_format().get_model() { true } else { false };
 245                             let ofmt = if do_yuv { ofmt_yuv } else { ofmt_rgb };
 246                             opic = alloc_video_buffer(NAVideoInfo::new(width, height, false, ofmt.fmt), 4).unwrap();
 247                             scaler = NAScale::new(sc_ifmt, ofmt).unwrap();
 248                         }
 249                         let ret = scaler.convert(&bt, &mut opic);
 250                         if ret.is_err() { println!(" scaler error {:?}", ret.err());  continue; }
 251                         ret.unwrap();
 252                         let ts = frm.get_dts().unwrap_or(frm.get_pts().unwrap_or(0));
 253                         let time = NATimeInfo::ts_to_time(ts, 1000, tb_num, tb_den);
 254
 255                         let buf = opic.get_vbuf().unwrap();
 256                         if !do_yuv {
 257                             let sstride = buf.get_stride(0);
 258                             let src = buf.get_data();
 259                             let surface = Surface::new(&[SurfaceFlag::SWSurface], width as isize, height as isize, 32, 0x000000FF, 0x0000FF00, 0x00FF0000, 0x00000000).unwrap();
 260                             let pitch = unsafe { (*surface.raw).pitch } as usize;
 261                             surface.with_lock(|x: &mut [u8]| -> bool {
 262                                         let csize = sstride.min(pitch);
 263                                         for (dst, src) in x.chunks_mut(pitch).zip(src.chunks(sstride)) {
 264                                             (&mut dst[..csize]).copy_from_slice(&src[..csize]);
 265                                         }
 266                                         true
 267                                     });
 268                             let mut count = cmsg.ev_mtx.lock().unwrap();
 269                             cmsg.esend.send(DisplayEvent::RGB(time, NABufferRef::new(surface))).unwrap();
 270                             *count += 1;
 271                         } else {
 272                             let screen = scr_mtx.lock().unwrap();
 273                             let overlay = screen.create_overlay(width as isize, height as isize, OverlayFormat::YV12).unwrap();
 274                             drop(screen);
 275                             while !overlay.lock() {}
 276                             let src = buf.get_data();
 277                             let ysstride = buf.get_stride(0);
 278                             let ysrc = &src[buf.get_offset(0)..];
 279                             let usstride = buf.get_stride(2);
 280                             let usrc = &src[buf.get_offset(2)..];
 281                             let vsstride = buf.get_stride(1);
 282                             let vsrc = &src[buf.get_offset(1)..];
 283                             unsafe {
 284                                 let ydst = overlay.get_pixel_ptr(0);
 285                                 let ydstride = overlay.get_pitch(0);
 286                                 let udst = overlay.get_pixel_ptr(1);
 287                                 let udstride = overlay.get_pitch(1);
 288                                 let vdst = overlay.get_pixel_ptr(2);
 289                                 let vdstride = overlay.get_pitch(2);
 290                                 for (ydst, ysrc) in ydst.chunks_mut(ydstride).take(height).zip(ysrc.chunks(ysstride)) {
 291                                     (&mut ydst[..width]).copy_from_slice(&ysrc[..width]);
 292                                 }
 293                                 for (udst, usrc) in udst.chunks_mut(udstride).take(height).zip(usrc.chunks(usstride)) {
 294                                     (&mut udst[..width / 2]).copy_from_slice(&usrc[..width / 2]);
 295                                 }
 296                                 for (vdst, vsrc) in vdst.chunks_mut(vdstride).take(height).zip(vsrc.chunks(vsstride)) {
 297                                     (&mut vdst[..width / 2]).copy_from_slice(&vsrc[..width / 2]);
 298                                 }
 299                             }
 300                             overlay.unlock();
 301                             let mut count = cmsg.ev_mtx.lock().unwrap();
 302                             cmsg.esend.send(DisplayEvent::YUV(time, NABufferRef::new(overlay))).unwrap();
 303                             *count += 1;
 304                         }
 305                     }
 306                 } else {
 307                     println!("error decoding video");
 308                 }
 309             }
 310             cmsg.finished.store(true, Ordering::Relaxed);
 311         })
 312 }
 313
 314 fn play_file(args: Vec<String>) {
 315
 316     let mut cur_arg: usize = 1;
 317     let mut decode_audio = true;
 318     while (cur_arg < args.len()) && args[cur_arg].starts_with('-') {
 319         match args[cur_arg].as_str() {
 320             "--"        => { break; },
 321             "-an"       => { decode_audio = false; },
 322             _           => { println!("unknown option {}", args[cur_arg]); return; },
 323         }
 324         cur_arg += 1;
 325     }
 326     let name = args[cur_arg].as_str();
 327
 328     let path = Path::new(name);
 329     let mut file = File::open(path).unwrap();
 330     let dmx_fact;
 331     let mut fr = FileReader::new_read(&mut file);
 332     let mut br = ByteReader::new(&mut fr);
 333     let res = detect::detect_format(name, &mut br);
 334     if res.is_none() {
 335         println!("cannot detect format for {}", name);
 336         return;
 337     }
 338     let (dmx_name, _) = res.unwrap();
 339     println!("trying demuxer {} on {}", dmx_name, name);
 340
 341     let mut dmx_reg = RegisteredDemuxers::new();
 342     nihav_register_all_demuxers(&mut dmx_reg);
 343     let mut dec_reg = RegisteredDecoders::new();
 344     nihav_register_all_codecs(&mut dec_reg);
 345
 346     dmx_fact = dmx_reg.find_demuxer(dmx_name).unwrap();
 347     br.seek(SeekFrom::Start(0)).unwrap();
 348     let mut dmx = create_demuxer(dmx_fact, &mut br).unwrap();
 349
 350     let mut width = 640;
 351     let mut height = 480;
 352     let mut ifmt = None;
 353     let mut tb_num = 0;
 354     let mut tb_den = 0;
 355     let mut arate = 0;
 356     let mut video_str = 0;
 357     let mut audio_str = 0;
 358
 359     let mut video_dec: Option<DecoderStuff> = None;
 360     let mut audio_dec: Option<DecoderStuff> = None;
 361
 362     for i in 0..dmx.get_num_streams() {
 363         let s = dmx.get_stream(i).unwrap();
 364         let info = s.get_info();
 365         let decfunc = dec_reg.find_decoder(info.get_name());
 366         println!("stream {} - {} {}", i, s, info.get_name());
 367         let str_id = s.get_id();
 368         if info.is_video() {
 369             if video_dec.is_none() {
 370                 if decfunc.is_none() {
 371                     println!("no video decoder for {} found!", info.get_name());
 372                     return;
 373                 }
 374                 let mut dec = (decfunc.unwrap())();
 375                 let mut dsupp = Box::new(NADecoderSupport::new());
 376                 let props = info.get_properties().get_video_info().unwrap();
 377                 if props.get_width() != 0 {
 378                     width  = props.get_width();
 379                     height = props.get_height();
 380                     ifmt = Some(props.clone());
 381                 }
 382                 let reorder_depth = 3;
 383                 dsupp.pool_u8 = NAVideoBufferPool::new(reorder_depth);
 384                 dsupp.pool_u16 = NAVideoBufferPool::new(reorder_depth);
 385                 dsupp.pool_u32 = NAVideoBufferPool::new(reorder_depth);
 386                 dec.init(&mut dsupp, info).unwrap();
 387                 let reord = Box::new(IPBReorderer::new());
 388                 video_dec = Some(DecoderStuff{ dsupp, dec, reord });
 389                 video_str = str_id;
 390                 let (tbn, tbd) = s.get_timebase();
 391                 tb_num = tbn;
 392                 tb_den = tbd;
 393             }
 394         } else if info.is_audio() {
 395             if audio_dec.is_none() && decode_audio {
 396                 if decfunc.is_none() {
 397                     println!("no audio decoder for {} found!", info.get_name());
 398                 } else {
 399                     let mut dec = (decfunc.unwrap())();
 400                     let mut dsupp = Box::new(NADecoderSupport::new());
 401                     let props = info.get_properties().get_audio_info().unwrap();
 402                     arate = props.get_sample_rate();
 403                     dec.init(&mut dsupp, info).unwrap();
 404                     let reord = Box::new(NoReorderer::new());
 405                     audio_dec = Some(DecoderStuff{ dsupp, dec, reord });
 406                     audio_str = str_id;
 407                 }
 408             }
 409         } else {
 410             println!("decoder {} not found", info.get_name());
 411         }
 412     }
 413
 414     while (width <= 384) && (height <= 288) {
 415         width <<= 1;
 416         height <<= 1;
 417     }
 418
 419     sdl::init(&[sdl::InitFlag::Video, sdl::InitFlag::Audio]);
 420     sdl::wm::set_caption("NihAV Player", "nihav-player");
 421     let screen = match sdl::video::set_video_mode(width as isize, height as isize, 32,
 422                                                   &[SurfaceFlag::HWSurface, SurfaceFlag::AsyncBlit, SurfaceFlag::HWAccel],
 423                                                   &[VideoFlag::DoubleBuf]) {
 424              Ok(screen) => screen,
 425              Err(err) => panic!("failed to set video mode: {}", err)
 426         };
 427
 428     let (vsend, vrecv) = mpsc::sync_channel::<SendEvent>(0);
 429     let (asend, arecv) = mpsc::sync_channel::<SendEvent>(0);
 430     let (esend, erecv) = mpsc::sync_channel::<DisplayEvent>(50);
 431     let events_mtx = Arc::new(Mutex::new(0isize));
 432
 433     let has_audio = audio_dec.is_some();
 434     let mut amtx = Arc::new(Mutex::new(AudioFIFO::new((arate * 8) as usize, (arate * 80) as usize)));
 435     let aud_finished = Arc::new(AtomicBool::new(!has_audio));
 436     let audio_thread = if has_audio {
 437             let ainfo = open_audio(arate, amtx.clone());
 438             let cmsg = CommonMessages {
 439                     receiver:   arecv,
 440                     esend:      esend.clone(),
 441                     ev_mtx:     events_mtx.clone(),
 442                     finished:   aud_finished.clone(),
 443                 };
 444             Some(start_audio_dec(audio_dec, ainfo, cmsg))
 445         } else { None };
 446
 447     let has_video = video_dec.is_some();
 448     let video_thread: Option<thread::JoinHandle<()>>;
 449     let scr_mtx = Arc::new(Mutex::new(NABufferRef::new(screen)));
 450     let vid_finished = Arc::new(AtomicBool::new(!has_video));
 451     if has_video {
 452         let cmsg = CommonMessages {
 453                 receiver:   vrecv,
 454                 esend:      esend,
 455                 ev_mtx:     events_mtx.clone(),
 456                 finished:   vid_finished.clone(),
 457             };
 458         video_thread = Some(start_video_dec(video_dec, ifmt, width, height, tb_num, tb_den, cmsg, scr_mtx.clone()));
 459     } else {
 460         video_thread = None;
 461     };
 462
 463     let mut frame_queue: Vec<DisplayEvent> = Vec::new();
 464
 465     let systime = SystemTime::now();
 466     let mut has_data = true;
 467
 468     'main : loop {
 469         'event : loop {
 470             match sdl::event::poll_event() {
 471                 Event::Quit => break 'main,
 472                 Event::None => break 'event,
 473                 Event::Key(k, _, _, _)
 474                     if k == Key::Escape || k == Key::Q
 475                         => break 'main,
 476                 Event::Key(k, _, _, _)
 477                     if k == Key::Space
 478                         => continue 'event,
 479                 _ => {}
 480             }
 481         }
 482         if has_data {
 483             let pktres = dmx.get_frame();
 484             if let Err(DemuxerError::EOF) = pktres {
 485                 has_data = false;
 486                 if has_video {
 487                     vsend.send(SendEvent::EOF).unwrap();
 488                 }
 489                 if has_audio {
 490                     asend.send(SendEvent::EOF).unwrap();
 491                 }
 492             } else if let Err(_) = pktres {
 493                 break;
 494             } else if let Ok(pkt) = pktres {
 495                 let streamno = pkt.get_stream().get_id();
 496
 497                 if has_video && streamno == video_str {
 498                     vsend.send(SendEvent::Packet(pkt)).unwrap();
 499                 } else if has_audio && streamno == audio_str {
 500                     asend.send(SendEvent::Packet(pkt)).unwrap();
 501                 }
 502             }
 503         }
 504
 505         let mut nevents = events_mtx.lock().unwrap();
 506         while *nevents > 0 {
 507             *nevents -= 1;
 508             let ret = erecv.recv();
 509             if ret.is_err() { break 'main; }
 510             let mut disp_evt = ret.unwrap();
 511             match disp_evt {
 512                 DisplayEvent::Audio(ref mut out_buf) => {
 513                     unsafe { sdl::audio::ll::SDL_LockAudio(); }
 514                     match out_buf {
 515                         NABufferType::AudioPacked(buf)  => add_audio(&mut amtx, buf.get_data()),
 516                         NABufferType::AudioU8(buf)      => add_audio(&mut amtx, buf.get_data()),
 517                         NABufferType::AudioI16(buf)     => add_audio(&mut amtx, buf.get_data()),
 518                         NABufferType::AudioI32(buf)     => add_audio(&mut amtx, buf.get_data()),
 519                         NABufferType::AudioF32(buf)     => add_audio(&mut amtx, buf.get_data()),
 520                         _ => unreachable!(),
 521                     };
 522                     unsafe { sdl::audio::ll::SDL_UnlockAudio(); }
 523                     sdl::audio::pause(false);
 524                 },
 525                 _ => { frame_queue.push(disp_evt); },
 526             };
 527         }
 528         drop(nevents);
 529         if vid_finished.load(Ordering::Relaxed) &&
 530                 aud_finished.load(Ordering::Relaxed) && frame_queue.len() == 0 {
 531             break;
 532         }
 533
 534         if frame_queue.len() > 0 {
 535             let cur_time = systime.elapsed().unwrap();
 536             let disp_time = Duration::from_millis(frame_queue[0].get_time());
 537
 538 //println!("cur time {:?} disp time {:?}", cur_time, disp_time);
 539             if (disp_time <= cur_time + Duration::from_millis(10)) && disp_time + Duration::from_millis(10) >= cur_time {
 540                 let screen = scr_mtx.lock().unwrap();
 541                 let disp_evt = frame_queue.remove(0);
 542                 match disp_evt {
 543                     DisplayEvent::RGB(_, ref surf) => {
 544                         screen.blit(surf);
 545                         screen.flip();
 546                     },
 547                     DisplayEvent::YUV(_, ref ovl)  => {
 548                         ovl.display(Some(screen.get_rect()));
 549                     },
 550                     _ => {},
 551                 };
 552             } else if disp_time > cur_time {
 553                 let diff = disp_time - cur_time;
 554                 if diff > Duration::from_millis(20) {
 555                     thread::sleep(Duration::from_millis(20));
 556                 } else {
 557                     thread::sleep(diff);
 558                 }
 559             } else {
 560                 frame_queue.remove(0);
 561             }
 562         }
 563     }
 564
 565     if has_audio {
 566         unsafe { sdl::audio::ll::SDL_LockAudio(); }
 567         let mut afifo = amtx.lock().unwrap();
 568         afifo.finish();
 569         drop(afifo);
 570         unsafe { sdl::audio::ll::SDL_UnlockAudio(); }
 571         sdl::audio::pause(true);
 572     }
 573     drop(vsend);
 574     drop(asend);
 575     if let Some(vthread) = video_thread {
 576         vthread.join().unwrap();
 577     }
 578     if let Some(athread) = audio_thread {
 579         athread.join().unwrap();
 580     }
 581
 582     if has_audio {
 583         sdl::audio::close();
 584     }
 585 }
 586
 587 fn main() {
 588     let args: Vec<String> = env::args().collect();
 589
 590     if args.len() == 1 {
 591         println!("usage: nihav-player input");
 592         return;
 593     }
 594
 595     play_file(args);
 596
 597     sdl::quit();
 598 }