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base: reactor:84dc1a983fd7f25f3c0a6eaeca329e314f9b1e5a
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compare: reactor:086b2942fae293c243f04664c0f610bf5a9439cf
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reactor:main

No commits in common. "84dc1a983fd7f25f3c0a6eaeca329e314f9b1e5a" and "086b2942fae293c243f04664c0f610bf5a9439cf" have entirely different histories.
84dc1a983f ... 086b2942fa

2 changed files with 126 additions and 154 deletions
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102
src/decoder.rs
View File

@ -90,18 +90,25 @@ impl PcmBuffers {
} }
} }
pub struct Decoder <T> { pub struct Decoder {
demuxer: T, input_ctx: DemuxContext,
decoder: DecodeContext, decoder: DecodeContext,
resampler: ResamplingContext, resampler: ResamplingContext,
best_stream_idx: usize,
dummy_frame: Option <FfAudioFrame>, dummy_frame: Option <FfAudioFrame>,
} }
impl <T: Demuxer> Decoder <T> { impl Decoder {
pub fn new (demuxer: T, codec: ffmpeg_next::codec::Context) -> Result <Self> { pub fn new (filename: &str) -> Result <Self> {
let decoder = codec.decoder ().audio ()?; let input_ctx = ffmpeg_next::format::input (&filename)?;
let stream = input_ctx
.streams ()
.best (ffmpeg_next::media::Type::Audio)
.ok_or_else (|| anyhow! ("can't find good audio stream"))?;
let best_stream_idx = stream.index ();
let decoder = stream.codec ().decoder ().audio ()?;
let resampler = decoder.resampler ( let resampler = decoder.resampler (
Sample::F32 (sample::Type::Packed), Sample::F32 (sample::Type::Packed),
ChannelLayout::STEREO, ChannelLayout::STEREO,
@ -109,10 +116,11 @@ impl <T: Demuxer> Decoder <T> {
)?; )?;
Ok (Self { Ok (Self {
demuxer, input_ctx,
decoder, decoder,
resampler, resampler,
best_stream_idx,
dummy_frame: None, dummy_frame: None,
}) })
} }
@ -215,28 +223,30 @@ impl <T: Demuxer> Decoder <T> {
} }
pub fn pump_demuxer (&mut self) -> Result <bool> { pub fn pump_demuxer (&mut self) -> Result <bool> {
let packet = self.demuxer.pump ()?; while let Some ((stream, packet)) = self.input_ctx.packets ().next () {
let packet = match packet { if stream.index () == self.best_stream_idx {
Some (x) => x, // tracing::trace! ("demuxed packet");
None => return Ok (false), self.decoder.send_packet (&packet)?;
}; return Ok (true);
}
}
self.decoder.send_packet (&packet)?; Ok (false)
Ok (true)
} }
} }
pub trait Demuxer { trait Demuxer {
fn pump (&mut self) -> Result <Option <ffmpeg_next::Packet>>;
} }
pub struct FfmpegDemuxer { struct FfmpegDemuxer {
input_ctx: DemuxContext, input_ctx: DemuxContext,
best_stream_idx: usize, best_stream_idx: usize,
decoder: DecodeContext,
} }
impl FfmpegDemuxer { impl FfmpegDemuxer {
pub fn new (filename: &str) -> Result <(Self, ffmpeg_next::codec::Context)> { pub fn new (filename: &str) -> Result <Self> {
let input_ctx = ffmpeg_next::format::input (&filename)?; let input_ctx = ffmpeg_next::format::input (&filename)?;
let stream = input_ctx let stream = input_ctx
.streams () .streams ()
@ -244,71 +254,35 @@ impl FfmpegDemuxer {
.ok_or_else (|| anyhow! ("can't find good audio stream"))?; .ok_or_else (|| anyhow! ("can't find good audio stream"))?;
let best_stream_idx = stream.index (); let best_stream_idx = stream.index ();
let codec = stream.codec (); let decoder = stream.codec ().decoder ().audio ()?;
Ok ((Self { Ok (Self {
input_ctx, input_ctx,
best_stream_idx, best_stream_idx,
}, codec)) decoder,
})
} }
} }
impl Demuxer for FfmpegDemuxer { impl FfmpegDemuxer {
fn pump (&mut self) -> Result <Option <ffmpeg_next::Packet>> { fn pump (&mut self) -> Result <
while let Some ((stream, packet)) = self.input_ctx.packets ().next () {
if stream.index () == self.best_stream_idx {
return Ok (Some (packet));
}
}
Ok (None)
}
} }
use crate::net_reader::NetReader; use crate::net_reader::NetReader;
pub struct HttpOggDemuxer { struct HttpOggDemuxer {
ogg_rdr: ogg::reading::PacketReader <std::io::BufReader <NetReader>>, ogg_rdr: ogg::reading::PacketReader <std::io::BufReader <NetReader>>,
} }
impl HttpOggDemuxer { impl HttpOggDemuxer {
pub fn new (url: String) -> Result <(Self, ffmpeg_next::codec::Context)> { pub fn new (url: String) -> Result <Self> {
let net_rdr = NetReader::new (url)?; let net_rdr = NetReader::new (url)?;
let buf_rdr = std::io::BufReader::new (net_rdr); let buf_rdr = std::io::BufReader::new (net_rdr);
let mut ogg_rdr = ogg::reading::PacketReader::new (buf_rdr); let mut ogg_rdr = ogg::reading::PacketReader::new (buf_rdr);
let codec = { Ok (Self {
// Open a local file as a placeholder for figuring out the remote file's codec
let input_ctx = ffmpeg_next::format::input (&"test.ogg")?;
let stream = input_ctx
.streams ()
.best (ffmpeg_next::media::Type::Audio)
.ok_or_else (|| anyhow! ("can't find good audio stream"))?;
stream.codec ()
};
Ok ((Self {
ogg_rdr, ogg_rdr,
}, codec)) })
}
}
impl Demuxer for HttpOggDemuxer {
fn pump (&mut self) -> Result <Option <ffmpeg_next::Packet>> {
let packet = match self.ogg_rdr.read_packet () {
Err (e) => {
tracing::error! ("Ogg read error: {:?}", e);
return Ok (None);
},
Ok (x) => x,
};
let packet = match packet {
None => return Ok (None),
Some (x) => x,
};
Ok (Some (ffmpeg_next::Packet::copy (&packet.data)))
} }
} }

178
src/main.rs
View File

@ -1,5 +1,6 @@
use std::{ use std::{
fs::File, fs::File,
io::Write,
sync::{ sync::{
Arc, Arc,
Condvar, Condvar,
@ -44,7 +45,9 @@ fn main () -> Result <()> {
match args.get (1).map (|s| &s[..]) { match args.get (1).map (|s| &s[..]) {
None => bail! ("First argument must be a subcommand like `play`"), None => bail! ("First argument must be a subcommand like `play`"),
Some ("debug-dump") => cmd_debug_dump (&args [1..]),
Some ("debug-net") => cmd_debug_net (&args [1..]), Some ("debug-net") => cmd_debug_net (&args [1..]),
Some ("debug-pipe") => cmd_debug_pipe (&args [1..]),
Some ("gui") => cmd_gui (&args [1..]), Some ("gui") => cmd_gui (&args [1..]),
Some ("play") => cmd_play (&args [1..]), Some ("play") => cmd_play (&args [1..]),
Some (_) => bail! ("Unrecognized subcommand"), Some (_) => bail! ("Unrecognized subcommand"),
@ -52,67 +55,71 @@ fn main () -> Result <()> {
} }
fn cmd_debug_net (args: &[String]) -> Result <()> { fn cmd_debug_net (args: &[String]) -> Result <()> {
use std::{
io::{
self,
Read,
Seek,
SeekFrom,
},
};
tracing_subscriber::fmt::init (); tracing_subscriber::fmt::init ();
let mut urls: Vec <_> = args.iter ().skip (1).map (|s| s.to_string ()).collect (); let url = args.get (1).ok_or_else (|| anyhow! ("Need a URL"))?
urls.reverse (); .to_string ();
let (fltk_tx, fltk_rx) = app::channel::<Message> (); let net_rdr = net_reader::NetReader::new (url)?;
let app = app::App::default (); let buf_rdr = std::io::BufReader::new (net_rdr);
let window_title = "Music Player".to_string (); let mut ogg_rdr = ogg::reading::PacketReader::new (buf_rdr);
let mut wind = Window::new (100, 100, 300, 300, None)
.with_label (&window_title);
wind.make_resizable (true);
wind.end ();
wind.show ();
let mut shared_state = SharedState::default (); let mut packet_count = 0;
let silence = vec! [0; 12_000 * 4 * 2];
shared_state.pcm_buffers.produce_bytes (silence);
let shared_state = Arc::new ((Mutex::new (shared_state), Condvar::new ()));
let thread_decoder = DecoderThread::new ( while let Ok (Some (packet)) = ogg_rdr.read_packet () {
Arc::clone (&shared_state), packet_count += 1;
Some (fltk_tx.clone ()),
);
let mut audio_output = AudioOutput::new (
Arc::clone (&shared_state),
thread_decoder.tx.clone (),
)?;
if let Some (url) = urls.pop () {
thread_decoder.tx.send (MessageToDecoder::SetUrl (url))?;
}
else {
bail! ("No URLs to play");
} }
while app.wait () { tracing::info! ("Read {} packets", packet_count);
tracing::trace! ("Main thread is waiting on messages...");
let msg = match fltk_rx.recv () { Ok (())
None => continue, }
Some (x) => x,
}; fn cmd_debug_dump (args: &[String]) -> Result <()> {
tracing_subscriber::fmt::init ();
match msg {
Message::DecoderStatus (x) => { let filename = args.get (1)
if ! x { .map (|s| s.to_string ())
tracing::debug! ("decoder ended"); .unwrap_or_else (|| "test-short.m4a".to_string ());
if let Some (url) = urls.pop () {
thread_decoder.tx.send (MessageToDecoder::SetUrl (url))?; let mut decoder = decoder::Decoder::new (&filename)?;
}
else { tracing::debug! ("Decoding...");
break;
} let mut f = File::create ("pcm-dump.data")?;
}
}, while let Some (frame) = decoder.next ()? {
_ => {}, f.write_all (frame.data ())?;
}
} }
audio_output.pause ()?; Ok (())
thread_decoder.tx.send (MessageToDecoder::Quit)?; }
thread_decoder.join ()?;
fn cmd_debug_pipe (args: &[String]) -> Result <()> {
tracing_subscriber::fmt::init ();
let filename = args.get (1)
.map (|s| s.to_string ())
.unwrap_or_else (|| "test-short.m4a".to_string ());
let mut decoder = decoder::Decoder::new (&filename)?;
let mut sample_count = 0;
while let Some (frame) = decoder.next ()? {
sample_count += frame.samples ();
// dbg! (frame, sample_count);
}
dbg! (sample_count);
Ok (()) Ok (())
} }
@ -157,6 +164,7 @@ impl Gui {
#[derive (Clone, Copy, Debug)] #[derive (Clone, Copy, Debug)]
enum Message { enum Message {
AudioStreamStatus (bool),
DecoderStatus (bool), DecoderStatus (bool),
RawPlay, RawPlay,
RawPause, RawPause,
@ -250,15 +258,17 @@ fn cmd_gui (args: &[String]) -> Result <()> {
let mut shared_state = SharedState::default (); let mut shared_state = SharedState::default ();
let silence = vec! [0; 12_000 * 4 * 2]; let silence = vec! [0; 12_000 * 4 * 2];
shared_state.pcm_buffers.produce_bytes (silence); shared_state.pcm_buffers.produce_bytes (silence);
let shared_state = Arc::new ((Mutex::new (shared_state), Condvar::new ())); let shared_state = Arc::new ((Mutex::new (shared_state), Condvar::new ()));
let thread_decoder = DecoderThread::new ( let thread_decoder = DecoderThread::new (
Arc::clone (&shared_state), Arc::clone (&shared_state),
Some (fltk_tx.clone ()), fltk_tx.clone (),
); );
let mut audio_output = AudioOutput::new ( let mut audio_output = AudioOutput::new (
Arc::clone (&shared_state), Arc::clone (&shared_state),
thread_decoder.tx.clone (), thread_decoder.tx.clone (),
fltk_tx.clone (),
)?; )?;
// Doesn't work. // Doesn't work.
@ -282,6 +292,9 @@ fn cmd_gui (args: &[String]) -> Result <()> {
}; };
match msg { match msg {
Message::AudioStreamStatus (x) => {
},
Message::DecoderStatus (x) => { Message::DecoderStatus (x) => {
if ! x { if ! x {
tracing::info! ("Decoder ran dry"); tracing::info! ("Decoder ran dry");
@ -299,11 +312,11 @@ fn cmd_gui (args: &[String]) -> Result <()> {
let idx = rand::thread_rng ().gen_range (0..playlist.len ()); let idx = rand::thread_rng ().gen_range (0..playlist.len ());
let filename = &playlist [idx]; let filename = &playlist [idx];
tracing::info! ("Set decoder to {}", filename); tracing::info! ("Set decoder to {}", filename);
thread_decoder.tx.send (MessageToDecoder::SetFile (format! ("/home/user/music/{}", filename)))?; thread_decoder.tx.send (MessageToDecoder::SetFile (Some (format! ("/home/user/music/{}", filename))))?;
current_file = Some (filename); current_file = Some (filename);
}, },
Message::RawSkip => { Message::RawSkip => {
thread_decoder.tx.send (MessageToDecoder::Clear)?; thread_decoder.tx.send (MessageToDecoder::SetFile (None))?;
}, },
} }
} }
@ -378,21 +391,14 @@ struct DecoderThread {
enum MessageToDecoder { enum MessageToDecoder {
NeedPcm, NeedPcm,
SetFile (String), SetFile (Option <String>),
SetUrl (String),
Clear,
Quit, Quit,
} }
enum Decoder {
File (decoder::Decoder <decoder::FfmpegDemuxer>),
Http (decoder::Decoder <decoder::HttpOggDemuxer>),
}
impl DecoderThread { impl DecoderThread {
pub fn new ( pub fn new (
shared_state: Arc <(Mutex <SharedState>, Condvar)>, shared_state: Arc <(Mutex <SharedState>, Condvar)>,
main_tx: Option <fltk::app::Sender <Message>>, main_tx: fltk::app::Sender <Message>,
) -> Self ) -> Self
{ {
let (tx, rx) = mpsc::sync_channel (4); let (tx, rx) = mpsc::sync_channel (4);
@ -400,17 +406,9 @@ impl DecoderThread {
let self_tx = tx.clone (); let self_tx = tx.clone ();
let join_handle = thread::spawn (move|| { let join_handle = thread::spawn (move|| {
let mut decoder: Option <Decoder> = None; let mut decoder: Option <decoder::Decoder> = None;
'thread: while let Ok (msg) = rx.recv () { match msg { 'thread: while let Ok (msg) = rx.recv () { match msg {
MessageToDecoder::Clear => {
decoder = None;
let new_buffers = decoder::PcmBuffers::default ();
self_tx.send (MessageToDecoder::NeedPcm)?;
let mut shared_state = shared_state.0.lock ().unwrap ();
shared_state.pcm_buffers = new_buffers;
},
MessageToDecoder::NeedPcm => { MessageToDecoder::NeedPcm => {
// tracing::trace! ("DecoderThread recv'd NeedPcm"); // tracing::trace! ("DecoderThread recv'd NeedPcm");
let mut bytes_produced = 0; let mut bytes_produced = 0;
@ -418,10 +416,11 @@ impl DecoderThread {
'pipeline: while bytes_produced < BUFFER_SIZE * 4 * 2 { 'pipeline: while bytes_produced < BUFFER_SIZE * 4 * 2 {
// tracing::trace! ("Pumping multi-file decode pipeline"); // tracing::trace! ("Pumping multi-file decode pipeline");
let frame = match &mut decoder { let frame = if let Some (decoder) = decoder.as_mut () {
None => None, decoder.next ()?
Some (Decoder::File (x)) => x.next ()?, }
Some (Decoder::Http (x)) => x.next ()?, else {
None
}; };
if let Some (frame) = frame { if let Some (frame) = frame {
@ -434,8 +433,7 @@ impl DecoderThread {
} }
else if decoder.is_some () { else if decoder.is_some () {
decoder = None; decoder = None;
tracing::trace! ("Decoder ended, telling main thread"); main_tx.send (Message::DecoderStatus (false));
main_tx.as_ref ().map (|x| x.send (Message::DecoderStatus (false)));
} }
{ {
@ -452,22 +450,20 @@ impl DecoderThread {
continue 'pipeline; continue 'pipeline;
} }
} }
// tracing::trace! ("Left NeedPcm handler");
// main_tx.send (Message::DecoderStatus (status));
}, },
MessageToDecoder::SetFile (x) => { MessageToDecoder::SetFile (x) => {
let (demuxer, codec) = decoder::FfmpegDemuxer::new (&x)?; if let Some (x) = x.as_ref () {
decoder = Some (Decoder::File (decoder::Decoder::new (demuxer, codec)?)); decoder = Some (decoder::Decoder::new (x)?);
}
else {
decoder = None;
}
// main_tx.send (Message::DecoderStatus (x.is_some ()));
let new_buffers = decoder::PcmBuffers::default (); let new_buffers = decoder::PcmBuffers::default ();
self_tx.send (MessageToDecoder::NeedPcm)?; self_tx.send (MessageToDecoder::NeedPcm)?;
let mut shared_state = shared_state.0.lock ().unwrap ();
shared_state.pcm_buffers = new_buffers;
},
MessageToDecoder::SetUrl (x) => {
let (demuxer, codec) = decoder::HttpOggDemuxer::new (x)?;
decoder = Some (Decoder::Http (decoder::Decoder::new (demuxer, codec)?));
let new_buffers = decoder::PcmBuffers::default ();
self_tx.send (MessageToDecoder::NeedPcm)?;
let mut shared_state = shared_state.0.lock ().unwrap (); let mut shared_state = shared_state.0.lock ().unwrap ();
shared_state.pcm_buffers = new_buffers; shared_state.pcm_buffers = new_buffers;
}, },
@ -503,6 +499,7 @@ impl AudioOutput {
pub fn new ( pub fn new (
shared_state: Arc <(Mutex <SharedState>, Condvar)>, shared_state: Arc <(Mutex <SharedState>, Condvar)>,
decoder_tx: mpsc::SyncSender <MessageToDecoder>, decoder_tx: mpsc::SyncSender <MessageToDecoder>,
main_tx: fltk::app::Sender <Message>,
) -> Result <Self> ) -> Result <Self>
{ {
let host = cpal::default_host (); let host = cpal::default_host ();
@ -556,6 +553,7 @@ impl AudioOutput {
decoder_tx.try_send (MessageToDecoder::NeedPcm).ok (); decoder_tx.try_send (MessageToDecoder::NeedPcm).ok ();
// tracing::trace! ("AudioOutput sent NeedPcm"); // tracing::trace! ("AudioOutput sent NeedPcm");
} }
// main_tx.send (Message::AudioStreamStatus (status));
}, },
move |err| { move |err| {
tracing::error! ("{:?}", err); tracing::error! ("{:?}", err);