3 extern crate nihav_core;
4 extern crate nihav_registry;
5 extern crate nihav_allstuff;
8 use std::io::prelude::*;
9 use std::io::{BufReader, SeekFrom};
11 use std::time::Duration;
13 use sdl2_sys::{SDL_AudioSpec, Uint32};
14 use nihav_core::io::byteio::{FileReader, ByteReader};
15 use nihav_core::frame::*;
16 use nihav_core::codecs::*;
17 use nihav_core::demuxers::*;
18 use nihav_core::soundcvt::*;
19 use nihav_registry::detect;
20 use nihav_allstuff::*;
27 dmx_reg: RegisteredDemuxers,
28 dec_reg: RegisteredDecoders,
37 device_id: sdl2_sys::SDL_AudioDeviceID
41 fn open(arate: u32, channels: u8) -> Option<(Self, SDL_AudioSpec)> {
42 let desired_spec = SDL_AudioSpec {
44 format: sdl2_sys::AUDIO_S16 as u16,
51 userdata: std::ptr::null_mut(),
53 let mut dspec = desired_spec;
54 let device_id = unsafe { sdl2_sys::SDL_OpenAudioDevice(std::ptr::null(), 0, &desired_spec, &mut dspec, 0) };
56 Some((AudioDevice { device_id }, dspec))
62 unsafe { sdl2_sys::SDL_PauseAudioDevice(self.device_id, 1); }
65 unsafe { sdl2_sys::SDL_PauseAudioDevice(self.device_id, 0); }
68 unsafe { sdl2_sys::SDL_ClearQueuedAudio(self.device_id); }
70 fn queue(&self, buf: &[i16]) {
72 let len = buf.len() * 2;
73 let buf_ptr = buf.as_ptr();
74 sdl2_sys::SDL_QueueAudio(self.device_id, buf_ptr as *const core::ffi::c_void, len as Uint32);
77 fn queue_bytes(&self, buf: &[u8]) {
80 let buf_ptr = buf.as_ptr();
81 sdl2_sys::SDL_QueueAudio(self.device_id, buf_ptr as *const core::ffi::c_void, len as Uint32);
84 fn size(&self) -> u32 {
85 unsafe { sdl2_sys::SDL_GetQueuedAudioSize(self.device_id) }
91 decoder: Box<dyn NADecoder>,
92 dsupp: Box<NADecoderSupport>,
93 buf: &'a mut Vec<i16>,
95 dst_info: NAAudioInfo,
96 dst_chmap: NAChannelMap,
103 fn output_vol_i16(device: &AudioDevice, tmp: &mut Vec<i16>, src: &[i16], mute: bool, volume: u8) {
106 tmp.reserve(src.len());
107 let vol = i32::from(volume);
108 for &sample in src.iter() {
109 let nsamp = vol * i32::from(sample) / 100;
110 tmp.push(nsamp.min(32767).max(-32768) as i16);
114 tmp.resize(src.len(), 0);
119 fn output_vol_u8(device: &AudioDevice, tmp: &mut Vec<i16>, src: &[u8], mute: bool, volume: u8) {
122 tmp.reserve(src.len());
123 let vol = i32::from(volume);
124 for sample in src.chunks_exact(2) {
125 let sample = (u16::from(sample[0]) + u16::from(sample[1]) * 256) as i16;
126 let nsamp = vol * i32::from(sample) / 100;
127 tmp.push(nsamp.min(32767).max(-32768) as i16);
131 tmp.resize(src.len() / 2, 0);
136 impl<'a> Decoder<'a> {
137 fn refill(&mut self, device: &AudioDevice) -> bool {
139 match self.demuxer.get_frame() {
141 if pkt.get_stream().get_num() == self.stream_no {
142 match self.decoder.decode(&mut self.dsupp, &pkt) {
144 let buf = frm.get_buffer();
145 if let Some(pts) = frm.ts.get_pts() {
146 self.samplepos = NATimeInfo::ts_to_time(pts, u64::from(self.arate), frm.ts.tb_num, frm.ts.tb_den);
148 let out_buf = convert_audio_frame(&buf, &self.dst_info, &self.dst_chmap).unwrap();
150 NABufferType::AudioI16(abuf) => {
151 if !self.mute && self.volume == 100 {
152 device.queue(&abuf.get_data());
154 output_vol_i16(device, self.buf, &abuf.get_data(), self.mute, self.volume);
156 self.samplepos += abuf.get_length() as u64;
158 NABufferType::AudioPacked(abuf) => {
159 if !self.mute && self.volume == 100 {
160 device.queue_bytes(&abuf.get_data());
162 output_vol_u8(device, self.buf, &abuf.get_data(), self.mute, self.volume);
164 self.samplepos += abuf.get_length() as u64;
166 _ => println!("unknown buffer type"),
171 println!(" error decoding {:?}", err);
177 Err(DemuxerError::EOF) => return true,
179 println!("demuxing error {:?}", err);
185 fn seek(&mut self, time: u64) -> bool {
186 let ret = self.demuxer.seek(NATimePoint::Milliseconds(time));
187 if ret.is_err() { println!(" seek error\n"); }
192 fn format_time(ms: u64) -> String {
194 let ds = (ms % 1000) / 100;
195 let (min, s) = (s / 60, s % 60);
197 format!("{}.{}", s, ds)
199 format!("{}:{:02}.{}", min, s, ds)
205 let mut dmx_reg = RegisteredDemuxers::new();
206 nihav_register_all_demuxers(&mut dmx_reg);
207 let mut dec_reg = RegisteredDecoders::new();
208 nihav_register_all_decoders(&mut dec_reg);
211 if sdl2_sys::SDL_Init(sdl2_sys::SDL_INIT_AUDIO) != 0 {
212 panic!("cannot init SDL");
226 fn play_file(&mut self, name: &str, cmd_receiver: &mpsc::Receiver<Command>) {
227 let ret = File::open(name);
229 println!("error opening {}", name);
232 let mut file = ret.unwrap();
234 let mut fr = FileReader::new_read(&mut file);
235 let mut br = ByteReader::new(&mut fr);
236 let res = detect::detect_format(name, &mut br);
238 println!("cannot detect format for {}", name);
241 let (dmx_name, _) = res.unwrap();
244 let dmx_fact = self.dmx_reg.find_demuxer(dmx_name);
245 if dmx_fact.is_none() {
246 println!("no demuxer for format {}", dmx_name);
249 let dmx_fact = dmx_fact.unwrap();
251 file.seek(SeekFrom::Start(0)).unwrap();
252 let mut file = BufReader::new(file);
253 let mut fr = FileReader::new_read(&mut file);
254 let mut br = ByteReader::new(&mut fr);
255 let res = create_demuxer(dmx_fact, &mut br);
257 println!("cannot create demuxer");
260 let dmx = res.unwrap();
262 let mut ainfo = None;
263 let mut dec: Option<(Box<NADecoderSupport>, Box<dyn NADecoder>)> = None;
264 let mut stream_no = 0;
265 let mut duration = dmx.get_duration();
266 for i in 0..dmx.get_num_streams() {
267 let s = dmx.get_stream(i).unwrap();
268 let info = s.get_info();
270 let decfunc = self.dec_reg.find_decoder(info.get_name());
271 if decfunc.is_none() {
272 println!("no decoder for {}", info.get_name());
275 let mut decoder = (decfunc.unwrap())();
276 let mut dsupp = Box::new(NADecoderSupport::new());
277 if decoder.init(&mut dsupp, info.clone()).is_err() {
278 println!("cannot init decoder for stream {}", i);
281 dec = Some((dsupp, decoder));
285 duration = NATimeInfo::ts_to_time(s.duration, 1000, s.tb_num, s.tb_den);
291 println!("no audio decoder found");
294 let (dsupp, decoder) = dec.unwrap();
296 let ainfo = ainfo.unwrap().get_properties().get_audio_info().unwrap();
297 let arate = if ainfo.sample_rate > 0 { ainfo.sample_rate } else { 44100 };
298 let ch = ainfo.channels;
300 println!("Playing {} [{}Hz {}ch]", name, arate, ch);
301 let ret = AudioDevice::open(arate, ch.max(2));
303 println!("cannot open output");
306 let (device, dspec) = ret.unwrap();
307 let block_limit = dmx.get_stream(stream_no).unwrap().tb_num * arate / dmx.get_stream(stream_no).unwrap().tb_den * u32::from(dspec.channels);
309 let dst_info = NAAudioInfo { sample_rate: dspec.freq as u32, channels: dspec.channels, format: SND_S16_FORMAT, block_len: 1 };
310 let dst_chmap = if dst_info.channels == 2 {
311 NAChannelMap::from_str("L,R").unwrap()
313 NAChannelMap::from_str("C").unwrap()
315 let mut decoder = Decoder {
326 let mut refill_limit = arate * u32::from(dspec.channels);
327 let underfill_limit = (arate * u32::from(dspec.channels) / 4).max(block_limit);
329 let mut eof = decoder.refill(&device);
330 while !eof && device.size() < refill_limit {
331 eof = decoder.refill(&device);
334 let duration_str = if duration != 0 { format_time(duration) } else { "???".to_owned() };
339 let cur_time = decoder.samplepos.saturating_sub(u64::from(device.size() / 2 / u32::from(dst_info.channels)));
340 let full_ms = cur_time * 1000 / u64::from(arate);
341 let timestr = format_time(full_ms);
342 let disp_vol = if self.mute { 0 } else { self.volume };
344 print!("> {} / {} {}% \r", timestr, duration_str, disp_vol);
346 print!("> {} / {} |{}| {}% \r", timestr, duration_str, device.size(), disp_vol);
348 std::io::stdout().flush().unwrap();
349 if device.size() < underfill_limit && !self.paused && refill_limit < (1 << 20) {
351 println!("underrun!");
353 refill_limit += refill_limit >> 1;
355 if device.size() < refill_limit / 2 {
356 while !eof && device.size() < refill_limit {
357 eof = decoder.refill(&device);
360 if eof && device.size() == 0 {
363 while let Ok(cmd) = cmd_receiver.try_recv() {
364 let cur_time = decoder.samplepos.saturating_sub(u64::from(device.size() / 2 / u32::from(dst_info.channels)));
366 Command::Forward(val) => {
369 let seekoff = match val {
374 let seek_time = cur_time * 1000 / u64::from(arate) + seekoff * 1000;
375 let _ret = decoder.seek(seek_time);
376 while !eof && device.size() < refill_limit {
377 eof = decoder.refill(&device);
386 Command::Back(val) => {
389 let seekoff = match val {
394 let seek_time = (cur_time * 1000 / u64::from(arate)).saturating_sub(seekoff * 1000);
395 let _ret = decoder.seek(seek_time);
396 while !eof && device.size() < refill_limit {
397 eof = decoder.refill(&device);
418 let _ret = decoder.seek(0);
419 while !eof && device.size() < refill_limit {
420 eof = decoder.refill(&device);
430 self.paused = !self.paused;
437 Command::VolumeUp => {
438 self.volume = (self.volume + 10).min(200);
439 decoder.volume = self.volume;
441 Command::VolumeDown => {
442 self.volume = self.volume.saturating_sub(10);
443 decoder.volume = self.volume;
446 self.mute = !self.mute;
447 decoder.mute = self.mute;
450 self.debug = !self.debug;
453 print!("\r{:60}\r", ' ');
455 thread::sleep(Duration::from_millis(200));
463 let args: Vec<String> = std::env::args().collect();
465 let cmd_state = CmdLineState::new();
467 let (cmd_reader_thread, cmd_receiver) = start_reader();
468 let mut player = Player::new();
471 println!("usage: nihav-sndplay file1 file2 ...");
475 if args[1] == "--help" {
476 println!("usage: nihav-sndplay file1 file2 ...");
477 println!("commands:");
478 println!(" escape / q - quit");
479 println!(" space - pause / resume playback");
480 println!(" enter / end - play next file");
481 println!(" home - play current track from the beginning");
482 println!(" left / right - seek 10 seconds forward / back");
483 println!(" up / down - seek 1 minute forward / back");
484 println!(" pgup / pgdn - seek 10 minutes forward / back");
485 println!(" + / - - increase / decrease volume");
486 println!(" m - mute output");
490 for arg in args[1..].iter() {
491 player.play_file(arg, &cmd_receiver);
498 drop(cmd_reader_thread);
499 unsafe { sdl2_sys::SDL_Quit(); }