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 use std::sync::atomic::{AtomicU8, Ordering};
  13
  14 use sdl2::event::{Event, WindowEvent};
  15 use sdl2::keyboard::{Keycode, Mod};
  16 use sdl2::mouse::{MouseButton, MouseWheelDirection};
  17 use sdl2::render::{Canvas, Texture, TextureCreator};
  18 use sdl2::pixels::PixelFormatEnum;
  19 use sdl2::video::{Window, WindowContext};
  20
  21 use nihav_registry::detect;
  22 use nihav_core::frame::*;
  23 use nihav_core::io::byteio::{FileReader, ByteReader};
  24 use nihav_core::reorder::*;
  25 use nihav_core::codecs::*;
  26 use nihav_core::demuxers::*;
  27 use nihav_registry::register::*;
  28 use nihav_allstuff::*;
  29
  30 mod audiodec;
  31 use audiodec::*;
  32 mod videodec;
  33 use videodec::*;
  34 mod osd;
  35 use osd::*;
  36
  37 #[repr(u8)]
  38 #[derive(Clone,Copy,Debug,PartialEq,Default)]
  39 enum DecodingState {
  40     #[default]
  41     Normal,
  42     Waiting,
  43     Flush,
  44     Prefetch,
  45     Error,
  46     End,
  47 }
  48
  49 impl From<u8> for DecodingState {
  50     fn from(val: u8) -> Self {
  51         match val {
  52             0 => DecodingState::Normal,
  53             1 => DecodingState::Waiting,
  54             2 => DecodingState::Flush,
  55             3 => DecodingState::Prefetch,
  56             4 => DecodingState::End,
  57             _ => DecodingState::Error,
  58         }
  59     }
  60 }
  61
  62 struct DecoderState {
  63     state:  AtomicU8
  64 }
  65
  66 impl DecoderState {
  67     const fn new() -> Self {
  68         Self {
  69             state:  AtomicU8::new(DecodingState::Normal as u8)
  70         }
  71     }
  72     fn set_state(&self, state: DecodingState) {
  73         self.state.store(state as u8, Ordering::Release);
  74     }
  75     fn get_state(&self) -> DecodingState {
  76         self.state.load(Ordering::Acquire).into()
  77     }
  78     fn is_flushing(&self) -> bool {
  79         matches!(self.get_state(), DecodingState::Flush | DecodingState::Error)
  80     }
  81 }
  82
  83 #[cfg(feature="debug")]
  84 macro_rules! debug_log {
  85     ($log: expr; $blk: block) => {
  86         $log.logfile.write($blk.as_bytes()).unwrap();
  87         $log.logfile.write(b"\n").unwrap();
  88     };
  89 }
  90 #[cfg(not(feature="debug"))]
  91 macro_rules! debug_log {
  92     ($log: expr; $blk: block) => {};
  93 }
  94
  95 pub enum PktSendEvent {
  96     Packet(NAPacket),
  97     GetFrames,
  98     Flush,
  99     End,
 100     ImmediateEnd,
 101     HurryUp,
 102 }
 103
 104 pub enum DecoderType {
 105     Audio(Box<dyn NADecoder + Send>),
 106     Video(Box<dyn NADecoder + Send>, Box<dyn FrameReorderer + Send>),
 107     VideoMT(Box<dyn NADecoderMT + Send>, MTFrameReorderer),
 108 }
 109
 110 pub struct DecoderStuff {
 111     pub dsupp:  Box<NADecoderSupport>,
 112     pub dec:    DecoderType,
 113 }
 114
 115 fn format_time(ms: u64) -> String {
 116     let s = ms / 1000;
 117     let ds = (ms % 1000) / 100;
 118     let (min, s) = (s / 60, s % 60);
 119     let (h, min) = (min / 60, min % 60);
 120     if h == 0 {
 121         if min == 0 {
 122             format!("{}.{}", s, ds)
 123         } else {
 124             format!("{}:{:02}.{}", min, s, ds)
 125         }
 126     } else {
 127         format!("{}:{:02}:{:02}.{}", h, min, s, ds)
 128     }
 129 }
 130
 131 const FRAME_QUEUE_LEN: usize = 25;
 132 const MAX_VOLUME: usize = 200;
 133
 134 pub type FrameRecord = (NABufferType, u64);
 135
 136 pub struct TimeKeep {
 137     ref_time:       Instant,
 138     ref_ts:         u64,
 139 }
 140
 141 impl TimeKeep {
 142     fn new() -> Self {
 143         Self {
 144             ref_time:   Instant::now(),
 145             ref_ts:     0,
 146         }
 147     }
 148     pub fn get_cur_time(&self) -> u64 {
 149         let add = self.ref_time.elapsed().as_millis() as u64;
 150         self.ref_ts + add
 151     }
 152     fn reset_ts(&mut self) {
 153         self.ref_ts = 0;
 154     }
 155     fn reset_all(&mut self, ts: u64) {
 156         self.ref_time = Instant::now();
 157         self.ref_ts   = ts;
 158     }
 159     fn set_ts(&mut self) {
 160         self.ref_ts = self.get_cur_time();
 161     }
 162     fn set_time(&mut self) {
 163         self.ref_time = Instant::now();
 164     }
 165 }
 166
 167 pub struct DispFrame<'a> {
 168     pub ts:         u64,
 169     pub is_yuv:     bool,
 170     pub valid:      bool,
 171     pub rgb_tex:    Texture<'a>,
 172     pub yuv_tex:    Texture<'a>,
 173 }
 174
 175 pub struct DispQueue<'a> {
 176     pub pool:       Vec<DispFrame<'a>>,
 177     pub first_ts:   u64,
 178     pub last_ts:    u64,
 179     pub start:      usize,
 180     pub end:        usize,
 181     pub len:        usize,
 182     pub width:      usize,
 183     pub height:     usize,
 184 }
 185
 186 impl<'a> DispQueue<'a> {
 187     fn new(texture_creator: &'a TextureCreator<WindowContext>, width: usize, height: usize, len: usize) -> Self {
 188         let mut pool = Vec::with_capacity(len);
 189         for _ in 0..len + 1 {
 190             let rgb_tex = texture_creator.create_texture_streaming(PixelFormatEnum::RGB24, width as u32, height as u32).expect("failed to create RGB texture");
 191             let yuv_tex = texture_creator.create_texture_streaming(PixelFormatEnum::IYUV, ((width + 1) & !1) as u32, ((height + 1) & !1) as u32).expect("failed to create YUV texture");
 192             pool.push(DispFrame{ ts: 0, is_yuv: false, valid: false, rgb_tex, yuv_tex });
 193         }
 194         pool[len].is_yuv = false;
 195         pool[len].rgb_tex.with_lock(None, |buffer: &mut [u8], _pitch: usize| {
 196                 for el in buffer.iter_mut() { *el = 0; }
 197             }).expect("RGB texture could not be locked");
 198
 199         Self { pool, first_ts: 0, last_ts: 0, start: 0, end: 0, len, width, height }
 200     }
 201
 202     fn flush(&mut self) {
 203         self.start = 0;
 204         self.end = 0;
 205         self.first_ts = 0;
 206         self.last_ts = 0;
 207         for frm in self.pool.iter_mut() {
 208             frm.valid = false;
 209         }
 210     }
 211
 212     fn get_last_texture(&mut self, osd: &OSD) -> &Texture<'a> {
 213         if self.pool[self.len].is_yuv {
 214             if osd.is_active() {
 215                 self.pool[self.len].yuv_tex.with_lock(None, |buffer: &mut [u8], pitch: usize| {
 216                         osd.draw_yuv(buffer, pitch);
 217                     }).expect("YUV texture locking failure");
 218             }
 219             &self.pool[self.len].yuv_tex
 220         } else {
 221             if osd.is_active() {
 222                 self.pool[self.len].rgb_tex.with_lock(None, |buffer: &mut [u8], pitch: usize| {
 223                         osd.draw_rgb(buffer, pitch);
 224                     }).expect("RGB texture locking failure");
 225             }
 226             &self.pool[self.len].rgb_tex
 227         }
 228     }
 229     pub fn is_empty(&self) -> bool { self.start == self.end }
 230     pub fn is_full(&self) -> bool { self.len == 0 || self.start == (self.end + 1) % self.len }
 231     pub fn move_end(&mut self) {
 232         self.end += 1;
 233         if self.end >= self.len {
 234             self.end -= self.len;
 235         }
 236     }
 237     pub fn move_start(&mut self) {
 238         self.pool.swap(self.start, self.len);
 239         self.start += 1;
 240         if self.start >= self.len {
 241             self.start -= self.len;
 242         }
 243         if !self.is_empty() {
 244             self.first_ts = self.pool[self.start].ts;
 245         }
 246     }
 247 }
 248
 249 fn try_display(disp_queue: &mut DispQueue, canvas: &mut Canvas<Window>, osd: &mut OSD, ctime: &TimeKeep) -> Option<u64> {
 250     while !disp_queue.is_empty() {
 251         let disp_time = disp_queue.first_ts;
 252         let ctime = ctime.get_cur_time();
 253         if disp_time > ctime + 10 {
 254             return Some(disp_time - ctime);
 255         } else if disp_time + 10 < ctime {
 256             disp_queue.move_start();
 257         } else {
 258             if osd.is_active() {
 259                 osd.prepare(ctime);
 260             }
 261             let frm = &mut disp_queue.pool[disp_queue.start];
 262             let texture = if frm.is_yuv {
 263                     if osd.is_active() {
 264                         frm.yuv_tex.with_lock(None, |buffer: &mut [u8], pitch: usize| {
 265                                 osd.draw_yuv(buffer, pitch);
 266                             }).expect("YUV texture locking failure");
 267                     }
 268                     &frm.yuv_tex
 269                 } else {
 270                     if osd.is_active() {
 271                         frm.rgb_tex.with_lock(None, |buffer: &mut [u8], pitch: usize| {
 272                                 osd.draw_rgb(buffer, pitch);
 273                             }).expect("RGB texture locking failure");
 274                     }
 275                     &frm.rgb_tex
 276                 };
 277             canvas.clear();
 278             canvas.copy(texture, None, None).expect("canvas blit failure");
 279             canvas.present();
 280
 281             disp_queue.move_start();
 282             if !disp_queue.is_empty() {
 283                 return Some((disp_queue.first_ts - ctime).saturating_sub(2));
 284             } else {
 285                 return None;
 286             }
 287         }
 288     }
 289     None
 290 }
 291
 292 struct Player {
 293     sdl_context:    sdl2::Sdl,
 294     vsystem:        sdl2::VideoSubsystem,
 295     asystem:        sdl2::AudioSubsystem,
 296     xpos:           Option<i32>,
 297     ypos:           Option<i32>,
 298
 299     acontrol:       AudioControl,
 300     vcontrol:       VideoControl,
 301
 302     play_video:     bool,
 303     play_audio:     bool,
 304     has_video:      bool,
 305     has_audio:      bool,
 306     video_str:      u32,
 307     audio_str:      u32,
 308
 309     vthreads:       usize,
 310     use_mt:         bool,
 311
 312     paused:         bool,
 313     mute:           bool,
 314     volume:         usize,
 315     end:            bool,
 316
 317     tkeep:          TimeKeep,
 318
 319     debug:          bool,
 320     osd:            OSD,
 321
 322     #[cfg(feature="debug")]
 323     logfile:        File,
 324 }
 325
 326 impl Player {
 327     fn new() -> Self {
 328         let sdl_context = sdl2::init().expect("SDL2 init failure");
 329         let vsystem = sdl_context.video().expect("video subsystem init failure");
 330         let asystem = sdl_context.audio().expect("audio subsystem init failure");
 331         vsystem.disable_screen_saver();
 332         let acontrol = AudioControl::new(None, None, false, &asystem);
 333         let vcontrol = VideoControl::new(None, 0, 0, 0, 0);
 334         Self {
 335             sdl_context, asystem, vsystem,
 336             xpos:           None,
 337             ypos:           None,
 338
 339             acontrol, vcontrol,
 340
 341             play_video:     true,
 342             play_audio:     true,
 343             has_video:      false,
 344             has_audio:      false,
 345             video_str:      0,
 346             audio_str:      0,
 347
 348             vthreads:       3,
 349             use_mt:         true,
 350
 351             paused:         false,
 352             mute:           false,
 353             volume:         100,
 354             end:            false,
 355
 356             tkeep:          TimeKeep::new(),
 357
 358             debug:          false,
 359             osd:            OSD::new(),
 360
 361             #[cfg(feature="debug")]
 362             logfile:        File::create("debug.log").expect("'debug.log' should be available for writing"),
 363         }
 364     }
 365     fn seek(&mut self, off: u64, fwd: bool, dmx: &mut Demuxer, disp_queue: &mut DispQueue) -> Result<(), ()> {
 366         let cur_time = self.tkeep.get_cur_time();
 367         let seektime = if fwd { cur_time + off * 1000 } else {
 368                 cur_time.saturating_sub(off * 1000) };
 369         debug_log!(self; {format!(" seek to {}", seektime)});
 370
 371         let ret = dmx.seek(NATimePoint::Milliseconds(seektime));
 372         if ret.is_err() {
 373             println!(" seek error");
 374             return Ok(()); //TODO: not ignore some of seek errors?
 375         }
 376
 377         self.acontrol.flush();
 378         self.vcontrol.flush();
 379         disp_queue.flush();
 380
 381         self.tkeep.reset_ts();
 382         self.prefill(dmx, disp_queue)?;
 383         if !disp_queue.is_empty() {
 384             self.tkeep.reset_all(disp_queue.first_ts);
 385         } else {
 386             let mut iterations = 0;
 387             let mut time = self.acontrol.get_time();
 388             while time.is_none() {
 389                 iterations += 1;
 390                 std::thread::yield_now();
 391                 if iterations > 1000000 { println!(" still no time set?!"); break; }
 392                 time = self.acontrol.get_time();
 393             }
 394             if let Some(time) = time {
 395                 self.tkeep.reset_all(time);
 396             }
 397         }
 398         if !self.paused {
 399             self.acontrol.resume();
 400         }
 401         Ok(())
 402     }
 403     fn prefill(&mut self, dmx: &mut Demuxer, disp_queue: &mut DispQueue) -> Result<(), ()> {
 404         debug_log!(self; {" prefilling"});
 405         while self.vcontrol.get_queue_size() < FRAME_QUEUE_LEN {
 406             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()));
 407
 408             if !self.vcontrol.try_send_queued() && self.vcontrol.get_queue_size() > FRAME_QUEUE_LEN / 2 {
 409                 try_send = false;
 410             }
 411             if !self.acontrol.try_send_queued() && self.acontrol.get_queue_size() > FRAME_QUEUE_LEN / 2 {
 412                 try_send = false;
 413             }
 414             if try_send {
 415                 match dmx.get_frame() {
 416                     Err(DemuxerError::EOF) => break,
 417                     Err(_) => break,
 418                     Ok(pkt) => {
 419                         let streamno = pkt.get_stream().get_id();
 420                         if self.has_video && streamno == self.video_str {
 421                             self.vcontrol.try_send_video(PktSendEvent::Packet(pkt));
 422                         } else if self.has_audio && streamno == self.audio_str {
 423                             self.acontrol.try_send_audio(PktSendEvent::Packet(pkt));
 424                         }
 425                     }
 426                 };
 427             }
 428             self.vcontrol.fill(disp_queue);
 429
 430             if !try_send {
 431                 break;
 432             }
 433         }
 434         if self.has_video {
 435             while self.vcontrol.get_queue_size() > 0 && !disp_queue.is_full() {
 436                 self.vcontrol.try_send_queued();
 437                 self.vcontrol.fill(disp_queue);
 438                 std::thread::sleep(Duration::from_millis(10));
 439             }
 440             self.vcontrol.wait_for_frames()?;
 441             self.vcontrol.fill(disp_queue);
 442         }
 443         debug_log!(self; {format!(" prefilling done, frames {}-{} audio {}", disp_queue.start, disp_queue.end, self.acontrol.get_fill())});
 444         Ok(())
 445     }
 446     fn toggle_pause(&mut self) {
 447         self.paused = !self.paused;
 448         if self.paused {
 449             self.vsystem.enable_screen_saver();
 450             self.tkeep.set_ts();
 451         } else {
 452             self.vsystem.disable_screen_saver();
 453             self.tkeep.set_time();
 454         }
 455         if self.paused {
 456             self.acontrol.pause();
 457         } else {
 458             self.acontrol.resume();
 459         }
 460     }
 461     fn handle_events(&mut self, event_pump: &mut sdl2::EventPump, canvas: &mut Canvas<Window>, dmx: &mut Demuxer, disp_queue: &mut DispQueue) -> Result<bool, ()> {
 462         for event in event_pump.poll_iter() {
 463             if let Event::Quit {..} = event {
 464                 self.end = true;
 465                 println!();
 466                 return Ok(true);
 467             }
 468             if let Event::Window {win_event: WindowEvent::Exposed, ..} = event {
 469                 canvas.clear();
 470                 canvas.copy(disp_queue.get_last_texture(&self.osd), None, None).expect("blitting failure");
 471                 canvas.present();
 472             }
 473             if let Event::MouseButtonDown {mouse_btn, ..} = event {
 474                 match mouse_btn {
 475                     MouseButton::Right => self.toggle_pause(),
 476                     MouseButton::Middle => self.osd.toggle(),
 477                     _ => {},
 478                 };
 479             }
 480             if let Event::MouseWheel {direction: MouseWheelDirection::Normal, x: 0, y, ..} = event {
 481                 self.seek(10, y > 0, dmx, disp_queue)?;
 482             }
 483             if let Event::KeyDown {keycode: Some(keycode), keymod, ..} = event {
 484                 match keycode {
 485                     Keycode::Escape => {
 486                         self.end = true;
 487                         println!();
 488                         return Ok(true);
 489                     },
 490                     Keycode::Q if keymod.contains(Mod::RSHIFTMOD) || keymod.contains(Mod::LSHIFTMOD) => {
 491                         self.end = true;
 492                         println!();
 493                         return Ok(true);
 494                     },
 495                     Keycode::Return => return Ok(true),
 496                     Keycode::Right      => { self.seek(10, true,  dmx, disp_queue)?; },
 497                     Keycode::Left       => { self.seek(10, false, dmx, disp_queue)?; },
 498                     Keycode::Up         => { self.seek(60, true,  dmx, disp_queue)?; },
 499                     Keycode::Down       => { self.seek(60, false, dmx, disp_queue)?; },
 500                     Keycode::PageUp     => { self.seek(600, true,  dmx, disp_queue)?; },
 501                     Keycode::PageDown   => { self.seek(600, false, dmx, disp_queue)?; },
 502                     Keycode::Space => { self.toggle_pause(); },
 503                     Keycode::Plus | Keycode::KpPlus => {
 504                         self.volume = (self.volume + 10).min(MAX_VOLUME);
 505                         if !self.mute {
 506                             self.acontrol.set_volume(self.volume);
 507                         }
 508                     },
 509                     Keycode::Minus | Keycode::KpMinus => {
 510                         self.volume = self.volume.saturating_sub(10);
 511                         if !self.mute {
 512                             self.acontrol.set_volume(self.volume);
 513                         }
 514                     },
 515                     Keycode::D => {
 516                         self.debug = !self.debug;
 517                     },
 518                     Keycode::M => {
 519                         self.mute = !self.mute;
 520                         if self.mute {
 521                             self.acontrol.set_volume(0);
 522                         } else {
 523                             self.acontrol.set_volume(self.volume);
 524                         }
 525                     },
 526                     Keycode::H => {
 527                         self.vcontrol.try_send_video(PktSendEvent::HurryUp);
 528                     },
 529                     Keycode::O => {
 530                         self.osd.toggle();
 531                     },
 532                     _ => {},
 533                 };
 534                 if !self.paused {
 535                     print!("{:60}\r", ' ');
 536                     std::io::stdout().flush().unwrap();
 537                 }
 538             }
 539         }
 540         Ok(false)
 541     }
 542     fn play(&mut self, name: &str, start_time: NATimePoint) {
 543         debug_log!(self; {format!("Playing {}", name)});
 544
 545         // prepare data source
 546         let path = Path::new(name);
 547         let mut file = if let Ok(handle) = File::open(path) {
 548                 handle
 549             } else {
 550                 println!("failed to open {}", name);
 551                 return;
 552             };
 553         let mut fr = FileReader::new_read(&mut file);
 554         let mut br = ByteReader::new(&mut fr);
 555         let res = detect::detect_format(name, &mut br);
 556         if res.is_none() {
 557             println!("cannot detect format for {}", name);
 558             return;
 559         }
 560         let (dmx_name, _score) = res.unwrap();
 561         debug_log!(self; {format!(" found demuxer {} with score {:?}", dmx_name, _score)});
 562         println!("trying demuxer {} on {}", dmx_name, name);
 563
 564         let mut dmx_reg = RegisteredDemuxers::new();
 565         nihav_register_all_demuxers(&mut dmx_reg);
 566         let mut dec_reg = RegisteredDecoders::new();
 567         nihav_register_all_decoders(&mut dec_reg);
 568         let mut mtdec_reg = RegisteredMTDecoders::new();
 569         if self.use_mt {
 570             nihav_register_all_mt_decoders(&mut mtdec_reg);
 571         }
 572
 573         let ret = dmx_reg.find_demuxer(dmx_name);
 574         if ret.is_none() {
 575             println!("error finding {} demuxer", dmx_name);
 576             return;
 577         }
 578         let dmx_fact = ret.unwrap();
 579         br.seek(SeekFrom::Start(0)).expect("should be able to seek to the start");
 580         let ret = create_demuxer(dmx_fact, &mut br);
 581         if ret.is_err() {
 582             println!("error creating demuxer");
 583             return;
 584         }
 585         let mut dmx = ret.unwrap();
 586         if start_time != NATimePoint::None {
 587             debug_log!(self; {format!(" start seek to {}", start_time)});
 588             if dmx.seek(start_time).is_err() {
 589                 println!("initial seek failed");
 590             }
 591         }
 592
 593         let mut width = 640;
 594         let mut height = 480;
 595         let mut tb_num = 0;
 596         let mut tb_den = 0;
 597         let mut ainfo: Option<NAAudioInfo> = None;
 598         let mut sbr_hack = false;
 599
 600         let mut video_dec: Option<DecoderStuff> = None;
 601         let mut audio_dec: Option<DecoderStuff> = None;
 602
 603         let duration = dmx.get_duration();
 604         if duration != 0 {
 605             println!(" total duration {}", format_time(duration));
 606         }
 607         self.has_video = false;
 608         self.has_audio = false;
 609         self.osd.reset();
 610         self.osd.set_duration(duration);
 611         for i in 0..dmx.get_num_streams() {
 612             let s = dmx.get_stream(i).unwrap();
 613             let info = s.get_info();
 614             let decfunc = dec_reg.find_decoder(info.get_name());
 615             let decfunc_mt = mtdec_reg.find_decoder(info.get_name());
 616             println!("stream {} - {} {}", i, s, info.get_name());
 617             debug_log!(self; {format!(" stream {} - {} {}", i, s, info.get_name())});
 618             let str_id = s.get_id();
 619             if info.is_video() {
 620                 if video_dec.is_none() && self.play_video {
 621                     if let Some(decfunc) = decfunc_mt {
 622                         let mut dec = (decfunc)();
 623                         let mut dsupp = Box::new(NADecoderSupport::new());
 624                         let props = info.get_properties().get_video_info().unwrap();
 625                         if props.get_width() != 0 {
 626                             width  = props.get_width();
 627                             height = props.get_height();
 628                         }
 629                         if dec.init(&mut dsupp, info.clone(), self.vthreads).is_ok() {
 630                             video_dec = Some(DecoderStuff{ dsupp, dec: DecoderType::VideoMT(dec, MTFrameReorderer::new()) });
 631                             self.video_str = str_id;
 632                             let (tbn, tbd) = s.get_timebase();
 633                             tb_num = tbn;
 634                             tb_den = tbd;
 635                             self.has_video = true;
 636                             continue;
 637                         } else {
 638                             println!("failed to create multi-threaded decoder, falling back");
 639                         }
 640                     }
 641                     if let Some(decfunc) = decfunc {
 642                         let mut dec = (decfunc)();
 643                         let mut dsupp = Box::new(NADecoderSupport::new());
 644                         let props = info.get_properties().get_video_info().unwrap();
 645                         if props.get_width() != 0 {
 646                             width  = props.get_width();
 647                             height = props.get_height();
 648                         }
 649                         let desc = get_codec_description(info.get_name());
 650                         let (reorder_depth, reord) = if desc.is_none() || (desc.unwrap().caps & CODEC_CAP_COMPLEX_REORDER) == 0 {
 651                                 let reord: Box<dyn FrameReorderer + Send> = Box::new(IPBReorderer::new());
 652                                 (3, reord)
 653                             } else {
 654                                 let reord: Box<dyn FrameReorderer + Send> = Box::new(ComplexReorderer::new());
 655                                 (16, reord)
 656                             };
 657                         dsupp.pool_u8 = NAVideoBufferPool::new(reorder_depth);
 658                         dsupp.pool_u16 = NAVideoBufferPool::new(reorder_depth);
 659                         dsupp.pool_u32 = NAVideoBufferPool::new(reorder_depth);
 660                         if dec.init(&mut dsupp, info).is_err() {
 661                             println!("failed to initialise video decoder");
 662                             return;
 663                         }
 664                         video_dec = Some(DecoderStuff{ dsupp, dec: DecoderType::Video(dec, reord) });
 665                         self.video_str = str_id;
 666                         let (tbn, tbd) = s.get_timebase();
 667                         tb_num = tbn;
 668                         tb_den = tbd;
 669                         self.has_video = true;
 670                     } else {
 671                         println!("no video decoder for {} found!", info.get_name());
 672                     }
 673                 }
 674             } else if info.is_audio() {
 675                 if audio_dec.is_none() && self.play_audio {
 676                     if let Some(decfunc) = decfunc {
 677                         let mut dec = (decfunc)();
 678                         let mut dsupp = Box::new(NADecoderSupport::new());
 679                         ainfo = info.get_properties().get_audio_info();
 680                         if let (true, Some(ref ai)) = (info.get_name() == "aac", ainfo) {
 681                             if ai.sample_rate < 32000 {
 682                                 sbr_hack = true;
 683                             }
 684                         }
 685                         if dec.init(&mut dsupp, info).is_err() {
 686                             println!("failed to initialise audio decoder");
 687                             return;
 688                         }
 689                         audio_dec = Some(DecoderStuff{ dsupp, dec: DecoderType::Audio(dec) });
 690                         self.audio_str = str_id;
 691                         self.has_audio = true;
 692                     } else {
 693                         println!("no audio decoder for {} found!", info.get_name());
 694                     }
 695                 }
 696             } else {
 697                 println!("decoder {} not found", info.get_name());
 698             }
 699         }
 700         if !self.has_video && !self.has_audio {
 701             println!("No playable streams found.");
 702             return;
 703         }
 704
 705         while (width <= 384) && (height <= 288) {
 706             width <<= 1;
 707             height <<= 1;
 708         }
 709
 710         // prepare playback structure
 711         let mut new_vcontrol = VideoControl::new(video_dec, width, height, tb_num, tb_den);
 712         std::mem::swap(&mut self.vcontrol, &mut new_vcontrol);
 713
 714         let mut new_acontrol = AudioControl::new(audio_dec, ainfo, sbr_hack, &self.asystem);
 715         std::mem::swap(&mut self.acontrol, &mut new_acontrol);
 716
 717         if self.mute {
 718             self.acontrol.set_volume(0);
 719         } else {
 720             self.acontrol.set_volume(self.volume);
 721         }
 722
 723         let fname = path.file_name();
 724         let wname = if let Some(fname) = fname {
 725                 "NihAV player - ".to_owned() + fname.to_str().expect("should be able to set window title")
 726             } else {
 727                 "NihAV player".to_owned()
 728             };
 729         let mut builder = self.vsystem.window(&wname, width as u32, height as u32);
 730         let window = if let (Some(xpos), Some(ypos)) = (self.xpos, self.ypos) {
 731                 builder.position(xpos, ypos).build().expect("should be able to set window position")
 732             } else {
 733                 builder.position_centered().build().expect("should be able to centre window")
 734             };
 735         let mut canvas = window.into_canvas().build().expect("should be able to build canvas");
 736         let texture_creator = canvas.texture_creator();
 737         let mut disp_q = DispQueue::new(&texture_creator, width, height, if self.has_video { FRAME_QUEUE_LEN } else { 0 });
 738         if !self.has_video {
 739             canvas.clear();
 740             canvas.copy(disp_q.get_last_texture(&self.osd), None, None).expect("blit failure");
 741             canvas.present();
 742         }
 743
 744         self.has_audio = self.acontrol.has_audio();
 745         if !self.has_video && !self.has_audio {
 746             println!("No playable streams.");
 747             return;
 748         }
 749
 750         // play
 751         if self.prefill(&mut dmx, &mut disp_q).is_err() {
 752             std::mem::swap(&mut self.vcontrol, &mut new_vcontrol);
 753             new_vcontrol.finish();
 754             std::mem::swap(&mut self.acontrol, &mut new_acontrol);
 755             new_acontrol.finish();
 756             return;
 757         }
 758         self.tkeep.reset_all(if !disp_q.is_empty() { disp_q.first_ts } else { 0 });
 759         if !self.paused {
 760             self.acontrol.resume();
 761         }
 762         let mut event_pump = self.sdl_context.event_pump().expect("should be able to create event pump");
 763         let mut last_disp = Instant::now();
 764         let mut has_data = true;
 765         'main: loop {
 766             let ret = self.handle_events(&mut event_pump, &mut canvas, &mut dmx, &mut disp_q);
 767             if matches!(ret, Ok(true) | Err(_)) {
 768                 println!();
 769                 break 'main;
 770             }
 771             if !self.paused {
 772                 let mut try_send = self.acontrol.get_queue_size() < FRAME_QUEUE_LEN && self.vcontrol.get_queue_size() < FRAME_QUEUE_LEN;
 773                 if !self.vcontrol.try_send_queued() && self.vcontrol.is_filled(FRAME_QUEUE_LEN) {
 774                     try_send = false;
 775                 }
 776                 if !self.acontrol.try_send_queued() {
 777                     try_send = false;
 778                 }
 779                 while has_data && try_send {
 780                     match dmx.get_frame() {
 781                         Err(DemuxerError::EOF) => {
 782                             self.vcontrol.try_send_video(PktSendEvent::End);
 783                             self.acontrol.try_send_audio(PktSendEvent::End);
 784                             has_data = false;
 785                         },
 786                         Err(err) => {
 787                             println!("demuxer error {:?}", err);
 788                             if err == DemuxerError::IOError {
 789                                 self.vcontrol.try_send_video(PktSendEvent::End);
 790                                 self.acontrol.try_send_audio(PktSendEvent::End);
 791                                 has_data = false;
 792                             }
 793                         },
 794                         Ok(pkt) => {
 795                             let streamno = pkt.get_stream().get_id();
 796                             if self.has_video && streamno == self.video_str {
 797                                 debug_log!(self; {"  sending video packet"});
 798                                 self.vcontrol.try_send_video(PktSendEvent::Packet(pkt));
 799                                 if self.vcontrol.is_filled(FRAME_QUEUE_LEN) {
 800                                     try_send = false;
 801                                 }
 802                             } else if self.has_audio && streamno == self.audio_str {
 803                                 debug_log!(self; {"  sending audio packet"});
 804                                 self.acontrol.try_send_audio(PktSendEvent::Packet(pkt));
 805                                 if self.acontrol.get_queue_size() >= FRAME_QUEUE_LEN {
 806                                     try_send = false;
 807                                 }
 808                             }
 809                         }
 810                     };
 811                 }
 812                 self.vcontrol.fill(&mut disp_q);
 813                 let mut sleep_time = 25;
 814                 debug_log!(self; {format!(" time {}", self.tkeep.get_cur_time())});
 815                 if self.has_video {
 816                     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())});
 817                     let ret = try_display(&mut disp_q, &mut canvas, &mut self.osd, &self.tkeep);
 818                     if let Some(next_time) = ret {
 819                         sleep_time = sleep_time.min(next_time);
 820                     }
 821                 }
 822                 if self.has_audio {
 823                     let time_left = self.acontrol.get_time_left();
 824                     debug_log!(self; {format!("  audio left {}", time_left)});
 825                     sleep_time = sleep_time.min(time_left);
 826                 }
 827                 debug_log!(self; {format!("  sleep {}ms", sleep_time)});
 828                 if last_disp.elapsed().as_millis() >= 10 {
 829                     let c_time = self.tkeep.get_cur_time();
 830
 831                     if !self.debug {
 832                         print!(" {}  {}% \r", format_time(c_time), self.acontrol.get_volume());
 833                     } else {
 834                         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());
 835                     }
 836                     std::io::stdout().flush().unwrap();
 837                     last_disp = Instant::now();
 838                 }
 839                 let mut end = true;
 840                 if self.has_video && !self.vcontrol.is_video_end() {
 841                     end = false;
 842                 }
 843                 if self.has_audio && !self.acontrol.is_audio_end() {
 844                     end = false;
 845                 }
 846                 if end {
 847                     break;
 848                 }
 849                 thread::sleep(Duration::from_millis(sleep_time));
 850             } else {
 851                 thread::sleep(Duration::from_millis(20));
 852             }
 853         }
 854         let (xpos, ypos) = canvas.into_window().position();
 855         self.xpos = Some(xpos);
 856         self.ypos = Some(ypos);
 857         println!();
 858         std::mem::swap(&mut self.vcontrol, &mut new_vcontrol);
 859         new_vcontrol.finish();
 860         std::mem::swap(&mut self.acontrol, &mut new_acontrol);
 861         new_acontrol.finish();
 862     }
 863 }
 864
 865 fn main() {
 866     let args: Vec<String> = env::args().collect();
 867
 868     if args.len() == 1 {
 869         println!("usage: nihav-player file1 file2 ...");
 870         return;
 871     }
 872
 873     let mut player = Player::new();
 874
 875     let mut aiter = args.iter().skip(1);
 876     let mut seek_time = NATimePoint::None;
 877     while let Some(arg) = aiter.next() {
 878         match arg.as_str() {
 879             "-an" => { player.play_audio = false; },
 880             "-ae" => { player.play_audio = true; },
 881             "-vn" => { player.play_video = false; },
 882             "-ve" => { player.play_video = true; },
 883             "-seek" | "-start" => {
 884                 if let Some(arg) = aiter.next() {
 885                     if let Ok(time) = arg.parse::<NATimePoint>() {
 886                         seek_time = time;
 887                     } else {
 888                         println!("wrong seek time");
 889                         seek_time = NATimePoint::None;
 890                     }
 891                 }
 892             },
 893             "-vol" => {
 894                 if let Some(arg) = aiter.next() {
 895                     if let Ok(vol) = arg.parse::<usize>() {
 896                         player.volume = vol.min(MAX_VOLUME);
 897                     } else {
 898                         println!("wrong volume");
 899                     }
 900                 }
 901             },
 902             "-debug" => {
 903                 player.debug = true;
 904             },
 905             "-nodebug" => {
 906                 player.debug = false;
 907             },
 908             "-mt" => {
 909                 player.use_mt = true;
 910             },
 911             "-nomt" => {
 912                 player.use_mt = false;
 913             },
 914             "-threads" => {
 915                 if let Some(arg) = aiter.next() {
 916                     if let Ok(val) = arg.parse::<usize>() {
 917                         player.vthreads = val.max(1);
 918                     } else {
 919                         println!("wrong number of threads");
 920                     }
 921                 }
 922             },
 923             _ => {
 924                 player.play(arg, seek_time);
 925                 if player.end { break; }
 926                 seek_time = NATimePoint::None;
 927             },
 928         };
 929     }
 930 }