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|
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<dyn NAPacketiser + Send>,
br: &'a mut ByteReader<'a>,
pts: u64,
}
impl<'a> RawStreamCtx<'a> {
fn new(stream: NAStreamRef, packetiser: Box<dyn NAPacketiser + Send>, br: &'a mut ByteReader<'a>) -> Self {
let mut sm = StreamManager::new();
sm.add_stream_ref(stream.clone());
Self { stream, sm, packetiser, br, pts: 0 }
}
}
pub enum DemuxerObject<'a> {
None,
Normal(Demuxer<'a>),
Raw(RawDemuxer<'a>, Vec<Option<Box<dyn NAPacketiser + Send>>>, bool),
RawStream(RawStreamCtx<'a>),
}
impl<'a> DemuxerObject<'a> {
pub fn create(br: &'a mut ByteReader<'a>, reg: &FullRegister, name: &str, ifmt: &Option<String>, 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(),
DemuxerObject::RawStream(ref ctx) => {
NATimeInfo::ts_to_time(ctx.stream.duration, 1000, ctx.stream.tb_num, ctx.stream.tb_den)
},
_ => 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 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<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 ctx) => {
let mut buf = [0; 65536];
loop {
match ctx.packetiser.get_packet(ctx.stream.clone()) {
Ok(Some(mut packet)) => {
if packet.get_pts().is_none() && packet.get_duration().is_some() {
packet.ts.pts = Some(ctx.pts);
}
ctx.pts += packet.get_duration().unwrap_or(0);
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(mut packet)) => {
if packet.get_pts().is_none() && packet.get_duration().is_some() {
packet.ts.pts = Some(ctx.pts);
}
ctx.pts += packet.get_duration().unwrap_or(0);
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<NAValue> {
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<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)
}
|