From 91a15e39ebb3b9fef4e8806b191a3c10ddb8a27c Mon Sep 17 00:00:00 2001 From: Kostya Shishkov Date: Wed, 17 Nov 2021 17:31:28 +0100 Subject: [PATCH] support various input stream types --- src/demux.rs | 339 +++++++++++++++++++++++++++++++++++++++++++++++++++ src/main.rs | 84 ++++++------- 2 files changed, 378 insertions(+), 45 deletions(-) create mode 100644 src/demux.rs diff --git a/src/demux.rs b/src/demux.rs new file mode 100644 index 0000000..dbc1447 --- /dev/null +++ b/src/demux.rs @@ -0,0 +1,339 @@ +use std::io::SeekFrom; +use nihav_core::codecs::*; +use nihav_core::demuxers::*; +use nihav_core::muxers::*; +use nihav_registry::detect; +use nihav_core::io::byteio::ByteReader; +use nihav_allstuff::*; +use crate::null::*; + +pub struct FullRegister { + pub dmx_reg: RegisteredDemuxers, + pub rdmx_reg: RegisteredRawDemuxers, + pub pkt_reg: RegisteredPacketisers, + pub dec_reg: RegisteredDecoders, + pub enc_reg: RegisteredEncoders, + pub mux_reg: RegisteredMuxers, +} + +impl FullRegister { + pub fn new() -> Self { + let mut dmx_reg = RegisteredDemuxers::new(); + nihav_register_all_demuxers(&mut dmx_reg); + let mut rdmx_reg = RegisteredRawDemuxers::new(); + nihav_register_all_raw_demuxers(&mut rdmx_reg); + let mut dec_reg = RegisteredDecoders::new(); + nihav_register_all_decoders(&mut dec_reg); + let mut pkt_reg = RegisteredPacketisers::new(); + nihav_register_all_packetisers(&mut pkt_reg); + let mut enc_reg = RegisteredEncoders::new(); + nihav_register_all_encoders(&mut enc_reg); + enc_reg.add_encoder(NULL_ENCODER); + let mut mux_reg = RegisteredMuxers::new(); + nihav_register_all_muxers(&mut mux_reg); + mux_reg.add_muxer(NULL_MUXER); + Self { dmx_reg, rdmx_reg, pkt_reg, dec_reg, enc_reg, mux_reg } + } +} + +pub struct RawStreamCtx<'a> { + stream: NAStreamRef, + sm: StreamManager, + packetiser: Box, + br: &'a mut ByteReader<'a>, +} + +impl<'a> RawStreamCtx<'a> { + fn new(stream: NAStreamRef, packetiser: Box, br: &'a mut ByteReader<'a>) -> Self { + let mut sm = StreamManager::new(); + sm.add_stream_ref(stream.clone()); + Self { stream, sm, packetiser, br } + } +} + +pub enum DemuxerObject<'a> { + None, + Normal(Demuxer<'a>), + Raw(RawDemuxer<'a>, Vec>>, bool), + RawStream(RawStreamCtx<'a>), +} + +impl<'a> DemuxerObject<'a> { + pub fn create(br: &'a mut ByteReader<'a>, reg: &FullRegister, name: &str, ifmt: &Option, is_raw: bool) -> DemuxerObject<'a> { + if !is_raw { + let dmx_name = if let Some(ref dname) = ifmt { + dname.as_str() + } else if let Some((dname, score)) = detect::detect_format(name, br) { + println!("detected {} with score {:?}", dname, score); + dname + } else { + "" + }; + if dmx_name != "" { + println!("trying demuxer {} on {}", dmx_name, name); + if let Some(dmx_fact) = reg.dmx_reg.find_demuxer(dmx_name) { + br.seek(SeekFrom::Start(0)).unwrap(); + let dmx = create_demuxer(dmx_fact, br).unwrap(); + return DemuxerObject::Normal(dmx); + } + } + if ifmt.is_some() { + return DemuxerObject::None; + } + if dmx_name != "" { + println!("trying raw demuxer {} on {}", dmx_name, name); + if let Some(rdmx_fact) = reg.rdmx_reg.find_demuxer(dmx_name) { + br.seek(SeekFrom::Start(0)).unwrap(); + let dmx = create_raw_demuxer(rdmx_fact, br).unwrap(); + let mut pkts = Vec::new(); + for stream in dmx.get_streams() { + if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) { + let packetiser = (pcreate)(); + pkts.push(Some(packetiser)); + } else { + pkts.push(None); + } + } + return DemuxerObject::Raw(dmx, pkts, false); + } + } + for rdmx in reg.rdmx_reg.iter() { + if rdmx.check_format(br) { + println!("detected {} as {}", name, rdmx.get_name()); + br.seek(SeekFrom::Start(0)).unwrap(); + let dmx = create_raw_demuxer(*rdmx, br).unwrap(); + let mut pkts = Vec::new(); + for stream in dmx.get_streams() { + if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) { + let packetiser = (pcreate)(); + pkts.push(Some(packetiser)); + } else { + pkts.push(None); + } + } + return DemuxerObject::Raw(dmx, pkts, false); + } + } + } + br.seek(SeekFrom::Start(0)).unwrap(); + let mut buf = vec![0; 1048576]; + let size = br.peek_buf(&mut buf).unwrap(); + let mut pname = ""; + + for pinfo in reg.pkt_reg.iter() { + let mut packetiser = (pinfo.get_packetiser)(); + packetiser.add_data(&buf[..size]); + if packetiser.parse_stream(0).is_ok() { + pname = pinfo.name; + break; + } + } + if pname != "" { + println!("found raw stream of type {} for {}", pname, name); + let pcreate = reg.pkt_reg.find_packetiser(pname).unwrap(); + let mut packetiser = (pcreate)(); + packetiser.add_data(&buf[..size]); + let stream = packetiser.parse_stream(0).unwrap(); + packetiser.reset(); + DemuxerObject::RawStream(RawStreamCtx::new(stream, packetiser, br)) + } else { + DemuxerObject::None + } + } + pub fn is_none(&self) -> bool { + match *self { + DemuxerObject::None => true, + _ => false, + } + } + /*pub fn get_duration(&self) -> u64 { + match *self { + DemuxerObject::Normal(ref dmx) => dmx.get_duration(), + DemuxerObject::Raw(ref dmx, _, _) => dmx.get_duration(), + _ => 0, + } + }*/ + pub fn get_num_streams(&self) -> usize { + match *self { + DemuxerObject::None => 0, + DemuxerObject::Normal(ref dmx) => dmx.get_num_streams(), + DemuxerObject::Raw(ref dmx, _, _) => dmx.get_num_streams(), + DemuxerObject::RawStream(_) => 1, + } + } + pub fn get_stream(&self, idx: usize) -> Option { + match *self { + DemuxerObject::Normal(ref dmx) => dmx.get_stream(idx), + DemuxerObject::Raw(ref dmx, _, _) => dmx.get_stream(idx), + DemuxerObject::RawStream(ref ctx) if idx == 0 => Some(ctx.stream.clone()), + _ => None, + } + } + pub fn get_streams(&self) -> StreamIter { + match *self { + DemuxerObject::Normal(ref dmx) => dmx.get_streams(), + DemuxerObject::Raw(ref dmx, _, _) => dmx.get_streams(), + DemuxerObject::RawStream(ref ctx) => ctx.sm.iter(), + _ => unreachable!(), + } + } + pub fn get_stream_manager(&self) -> &StreamManager { + match *self { + DemuxerObject::Normal(ref dmx) => dmx.get_stream_manager(), + DemuxerObject::Raw(ref dmx, _, _) => dmx.get_stream_manager(), + DemuxerObject::RawStream(ref ctx) => &ctx.sm, + _ => unreachable!(), + } + } + pub fn get_frame(&mut self) -> DemuxerResult { + match *self { + DemuxerObject::Normal(ref mut dmx) => dmx.get_frame(), + DemuxerObject::Raw(ref mut dmx, ref mut packetisers, ref mut eof) => { + loop { + let mut has_some = false; + for (stream, p) in dmx.get_streams().zip(packetisers.iter_mut()) { + if let Some(ref mut pkts) = p { + match pkts.get_packet(stream.clone()) { + Ok(Some(pkt)) => return Ok(pkt), + Ok(None) | Err(DecoderError::ShortData) => { + if *eof { + *p = None; + } + }, + Err(err) => { + println!("packetisation error {:?}", err); + return Err(DemuxerError::InvalidData); + } + }; + has_some |= p.is_some(); + } + } + if !has_some { + return Err(DemuxerError::EOF); + } + if let Ok(data) = dmx.get_data() { + let id = data.get_stream().get_id(); + for (i, stream) in dmx.get_streams().enumerate() { + if stream.get_id() == id { + if let Some(ref mut pkts) = packetisers[i] { + pkts.add_data(&data.get_buffer()); + } + break; + } + } + } else { + *eof = true; + } + } + }, + DemuxerObject::RawStream(ref mut ctx) => { + let mut buf = [0; 65536]; + loop { + match ctx.packetiser.get_packet(ctx.stream.clone()) { + Ok(Some(packet)) => return Ok(packet), + Ok(None) => {}, + Err(DecoderError::ShortData) => {}, + _ => return Err(DemuxerError::InvalidData), + }; + match ctx.br.read_buf_some(&mut buf) { + Ok(size) => { + ctx.packetiser.add_data(&buf[..size]); + }, + Err(_) => { + match ctx.packetiser.get_packet(ctx.stream.clone()) { + Ok(Some(packet)) => return Ok(packet), + Ok(None) | Err(DecoderError::ShortData) => return Err(DemuxerError::EOF), + _ => return Err(DemuxerError::InvalidData), + }; + }, + }; + } + }, + _ => unreachable!(), + } + } + pub fn seek(&mut self, seek_time: NATimePoint) -> DemuxerResult<()> { + match *self { + DemuxerObject::Normal(ref mut dmx) => dmx.seek(seek_time), + DemuxerObject::Raw(ref mut dmx, _, _) => dmx.seek(seek_time), + _ => Err(DemuxerError::NotImplemented), + } + } +} + +impl<'a> NAOptionHandler for DemuxerObject<'a> { + fn get_supported_options(&self) -> &[NAOptionDefinition] { + match *self { + DemuxerObject::Normal(ref dmx) => dmx.get_supported_options(), + DemuxerObject::Raw(ref dmx, _, _) => dmx.get_supported_options(), + _ => &[], + } + } + fn set_options(&mut self, options: &[NAOption]) { + match *self { + DemuxerObject::Normal(ref mut dmx) => dmx.set_options(options), + DemuxerObject::Raw(ref mut dmx, _, _) => dmx.set_options(options), + _ => {}, + } + } + fn query_option_value(&self, name: &str) -> Option { + match *self { + DemuxerObject::Normal(ref dmx) => dmx.query_option_value(name), + DemuxerObject::Raw(ref dmx, _, _) => dmx.query_option_value(name), + _ => None, + } + } +} + +pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option) { + let mut is_raw = false; + let mut start = 0; + let mut end = None; + + // check for ID3v{2-4} + let mut buf = [0; 5]; + br.peek_buf(&mut buf).unwrap(); + if &buf[0..3] == b"ID3" && buf[3] > 0 && buf[3] < 5 && buf[4] == 0 { //ID3 tag found, must be a raw stream + br.read_skip(6).unwrap(); + let mut size = 0; + for _ in 0..4 { + let b = br.read_byte().unwrap(); + if (b & 0x80) != 0 { + println!("Invalid ID3 size"); + break; + } + size = (size << 7) | u64::from(b); + } + start = size + 10; + is_raw = true; + } + // check for ID3v1 + br.seek(SeekFrom::End(-128)).unwrap(); + let off = br.tell(); + br.peek_buf(&mut buf[..3]).unwrap(); + if &buf[0..3] == b"TAG" { + end = Some(off); + } + // check for APETAG + let mut buf = [0; 8]; + if let Some(off) = end { + br.seek(SeekFrom::Start(off - 32)).unwrap(); + } else { + br.seek(SeekFrom::End(-32)).unwrap(); + } + let off = br.tell(); + br.read_buf(&mut buf).unwrap(); + if &buf == b"APETAGEX" { + let ver = br.read_u32le().unwrap(); + let size = u64::from(br.read_u32le().unwrap()); + let _items = br.read_u32le().unwrap(); + let flags = br.read_u32le().unwrap(); + if ver == 1000 || (flags & 0x80000000) == 0 { + end = Some(off - size + 32); + } else { + end = Some(off - size); + } + } + + (is_raw, start, end) +} diff --git a/src/main.rs b/src/main.rs index 0a36cc8..fd1fdae 100644 --- a/src/main.rs +++ b/src/main.rs @@ -4,6 +4,7 @@ extern crate nihav_registry; extern crate nihav_allstuff; use std::fs::File; +use std::io::BufReader; use nihav_core::io::byteio::{FileReader, ByteReader}; use nihav_core::frame::*; use nihav_core::options::*; @@ -15,11 +16,11 @@ use nihav_core::scale::*; use nihav_core::soundcvt::*; use nihav_registry::detect; use nihav_registry::register; -use nihav_allstuff::*; use std::env; +mod demux; +use crate::demux::*; mod null; -use crate::null::*; fn print_options(name: &str, options: &[NAOptionDefinition]) { if options.is_empty() { @@ -701,17 +702,7 @@ fn main() { return; } - let mut dmx_reg = RegisteredDemuxers::new(); - nihav_register_all_demuxers(&mut dmx_reg); - let mut dec_reg = RegisteredDecoders::new(); - nihav_register_all_decoders(&mut dec_reg); - - let mut mux_reg = RegisteredMuxers::new(); - nihav_register_all_muxers(&mut mux_reg); - mux_reg.add_muxer(NULL_MUXER); - let mut enc_reg = RegisteredEncoders::new(); - nihav_register_all_encoders(&mut enc_reg); - enc_reg.add_encoder(NULL_ENCODER); + let full_reg = FullRegister::new(); let mut transcoder = Transcoder::new(); @@ -720,9 +711,9 @@ fn main() { while arg_idx < args.len() { match args[arg_idx].as_str() { "--list-decoders" => { - if dec_reg.iter().len() > 0 { + if full_reg.dec_reg.iter().len() > 0 { println!("Registered decoders:"); - for dec in dec_reg.iter() { + for dec in full_reg.dec_reg.iter() { let cdesc = register::get_codec_description(dec.name); let full_name = if let Some(cd) = cdesc { cd.get_full_name() } else { "???" }; println!(" {} ({})", dec.name, full_name); @@ -733,9 +724,9 @@ fn main() { printed_info = true; }, "--list-encoders" => { - if enc_reg.iter().len() > 0 { + if full_reg.enc_reg.iter().len() > 0 { println!("Registered encoders:"); - for enc in enc_reg.iter() { + for enc in full_reg.enc_reg.iter() { let cdesc = register::get_codec_description(enc.name); let full_name = if let Some(cd) = cdesc { cd.get_full_name() } else { "???" }; println!(" {} ({})", enc.name, full_name); @@ -747,7 +738,7 @@ fn main() { }, "--list-demuxers" => { print!("Registered demuxers:"); - for dmx in dmx_reg.iter() { + for dmx in full_reg.dmx_reg.iter() { print!(" {}", dmx.get_name()); } println!(); @@ -755,7 +746,7 @@ fn main() { }, "--list-muxers" => { print!("Registered muxers:"); - for mux in mux_reg.iter() { + for mux in full_reg.mux_reg.iter() { print!(" {}", mux.get_name()); } println!(); @@ -764,7 +755,7 @@ fn main() { "--query-decoder-options" => { next_arg!(args, arg_idx); let cname = args[arg_idx].as_str(); - if let Some(decfunc) = dec_reg.find_decoder(cname) { + if let Some(decfunc) = full_reg.dec_reg.find_decoder(cname) { let dec = (decfunc)(); let opts = dec.get_supported_options(); print_options(cname, opts); @@ -778,7 +769,7 @@ fn main() { let dname = args[arg_idx].as_str(); let mut mr = MemoryReader::new_read(&[]); let mut br = ByteReader::new(&mut mr); - if let Some(dmx_creator) = dmx_reg.find_demuxer(dname) { + if let Some(dmx_creator) = full_reg.dmx_reg.find_demuxer(dname) { let dmx = dmx_creator.new_demuxer(&mut br); let opts = dmx.get_supported_options(); print_options(dname, opts); @@ -790,7 +781,7 @@ fn main() { "--query-encoder-options" => { next_arg!(args, arg_idx); let cname = args[arg_idx].as_str(); - if let Some(encfunc) = enc_reg.find_encoder(cname) { + if let Some(encfunc) = full_reg.enc_reg.find_encoder(cname) { let enc = (encfunc)(); let opts = enc.get_supported_options(); print_options(cname, opts); @@ -805,7 +796,7 @@ fn main() { let mut data = []; let mut mw = MemoryWriter::new_write(&mut data); let mut bw = ByteWriter::new(&mut mw); - if let Some(mux_creator) = mux_reg.find_muxer(name) { + if let Some(mux_creator) = full_reg.mux_reg.find_muxer(name) { let mux = mux_creator.new_muxer(&mut bw); let opts = mux.get_supported_options(); print_options(name, opts); @@ -832,7 +823,7 @@ fn main() { }, "--demuxer-options" => { next_arg!(args, arg_idx); - if !transcoder.parse_demuxer_options(&args[arg_idx], &dmx_reg) { + if !transcoder.parse_demuxer_options(&args[arg_idx], &full_reg.dmx_reg) { println!("invalid demuxer option syntax"); return; } @@ -872,7 +863,7 @@ fn main() { }, "--muxer-options" => { next_arg!(args, arg_idx); - if !transcoder.parse_muxer_options(&args[arg_idx], &mux_reg) { + if !transcoder.parse_muxer_options(&args[arg_idx], &full_reg.mux_reg) { println!("invalid muxer option syntax"); return; } @@ -888,7 +879,7 @@ fn main() { } else if args[arg_idx].starts_with("--ostream") { let opt0 = &args[arg_idx]; next_arg!(args, arg_idx); - if !transcoder.parse_ostream_options(opt0, &args[arg_idx], &enc_reg) { + if !transcoder.parse_ostream_options(opt0, &args[arg_idx], &full_reg.enc_reg) { println!("invalid output stream option syntax"); return; } @@ -920,32 +911,35 @@ fn main() { println!("error opening input"); return; } - let mut file = res.unwrap(); - let mut fr = FileReader::new_read(&mut file); + let file = res.unwrap(); + let file = BufReader::new(file); + let mut fr = FileReader::new_read(file); let mut br = ByteReader::new(&mut fr); - - let dmx_name = if let Some(ref str) = transcoder.input_fmt { - str.as_str() - } else if let Some((dmx_name, score)) = detect::detect_format(transcoder.input_name.as_str(), &mut br) { - println!("detected {} with score {:?}", dmx_name, score); - dmx_name + let (is_raw, start, end) = if transcoder.input_fmt.is_none() { + detect_tags(&mut br) } else { - println!("cannot detect input format"); - return; + (false, 0, None) }; - let ret = dmx_reg.find_demuxer(dmx_name); - if ret.is_none() { - println!("cannot find demuxer for '{}'", dmx_name); + + let mut nfr: Box; + if start != 0 || end.is_some() { + let file = fr.finish(); + nfr = Box::new(BoundedFileReader::new_read(file, start, end).unwrap()); + } else { + nfr = Box::new(fr); + } + let mut br = ByteReader::new(nfr.as_mut()); + + let mut dmx = DemuxerObject::create(&mut br, &full_reg, transcoder.input_name.as_str(), &transcoder.input_fmt, is_raw); + if dmx.is_none() { + println!("cannot find demuxer for '{}'", transcoder.input_name.as_str()); return; } - let dmx_fact = ret.unwrap(); - br.seek(SeekFrom::Start(0)).unwrap(); - let mut dmx = create_demuxer(dmx_fact, &mut br).unwrap(); parse_and_apply_options!(dmx, &transcoder.demux_opts, "input"); for i in 0..dmx.get_num_streams() { let s = dmx.get_stream(i).unwrap(); let info = s.get_info(); - let decfunc = dec_reg.find_decoder(info.get_name()); + let decfunc = full_reg.dec_reg.find_decoder(info.get_name()); println!("stream {} - {} {}", i, s, info.get_name()); let str_id = s.get_num() as u32; if let Some(create_dec) = decfunc { @@ -986,7 +980,7 @@ println!("stream {} - {} {}", i, s, info.get_name()); println!("Cannot guess muxer for output"); return; }; - let ret = mux_reg.find_muxer(output_fmt); + let ret = full_reg.mux_reg.find_muxer(output_fmt); let ofmt = output_fmt.to_string(); if ret.is_none() { @@ -996,7 +990,7 @@ println!("stream {} - {} {}", i, s, info.get_name()); let mux_caps = mux_creator.get_capabilities(); let mut out_sm = StreamManager::new(); - if !transcoder.negotiate_stream_map(dmx.get_stream_manager(), mux_caps, &mut out_sm, &enc_reg) { + if !transcoder.negotiate_stream_map(dmx.get_stream_manager(), mux_caps, &mut out_sm, &full_reg.enc_reg) { println!("cannot determine stream map"); return; } -- 2.30.2