+use std::io::SeekFrom;
+use nihav_core::codecs::*;
+use nihav_core::demuxers::*;
+use nihav_registry::detect;
+use nihav_core::io::byteio::ByteReader;
+use nihav_allstuff::*;
+
+pub struct FullRegister {
+ pub dmx_reg: RegisteredDemuxers,
+ pub rdmx_reg: RegisteredRawDemuxers,
+ pub pkt_reg: RegisteredPacketisers,
+ pub dec_reg: RegisteredDecoders,
+}
+
+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);
+ Self { dmx_reg, rdmx_reg, pkt_reg, dec_reg }
+ }
+}
+
+pub enum DemuxerObject<'a> {
+ None,
+ Normal(Demuxer<'a>),
+ Raw(RawDemuxer<'a>, Vec<Option<Box<dyn NAPacketiser + Send>>>, bool),
+ RawStream(Box<dyn NAPacketiser + Send>, NAStreamRef, &'a mut ByteReader<'a>),
+}
+
+impl<'a> DemuxerObject<'a> {
+ pub fn create(br: &'a mut ByteReader<'a>, reg: &FullRegister, name: &str, is_raw: bool) -> DemuxerObject<'a> {
+ if !is_raw {
+ let res = detect::detect_format(name, br);
+ let (dmx_name, _) = res.unwrap_or(("", detect::DetectionScore::No));
+ 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 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(packetiser, stream, 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<NAStreamRef> {
+ match *self {
+ DemuxerObject::Normal(ref dmx) => dmx.get_stream(idx),
+ DemuxerObject::Raw(ref dmx, _, _) => dmx.get_stream(idx),
+ DemuxerObject::RawStream(_, ref stream, _) if idx == 0 => Some(stream.clone()),
+ _ => None,
+ }
+ }
+ pub fn get_frame(&mut self) -> DemuxerResult<NAPacket> {
+ 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 pkt, ref stream, ref mut br) => {
+ let mut buf = [0; 1048576];
+ loop {
+ match pkt.get_packet(stream.clone()) {
+ Ok(Some(packet)) => return Ok(packet),
+ Ok(None) => {},
+ Err(DecoderError::ShortData) => {},
+ _ => return Err(DemuxerError::InvalidData),
+ };
+ match br.read_buf_some(&mut buf) {
+ Ok(size) => {
+ pkt.add_data(&buf[..size]);
+ },
+ Err(_) => {
+ match pkt.get_packet(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),
+ }
+ }
+}
+
+pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option<u64>) {
+ 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)
+}
projects / nihav-tool.git / blobdiff