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extern crate nihav_core;
extern crate nihav_codec_support;
extern crate nihav_registry;
extern crate nihav_allstuff;
use std::io::{Write, BufReader};
use std::fs::File;
use std::path::Path;
use nihav_core::frame::*;
use nihav_core::codecs::*;
use nihav_core::demuxers::*;
use nihav_codec_support::imgwrite::*;
use std::env;
mod demux;
use demux::*;
mod wavwriter;
use crate::wavwriter::WavWriter;
#[derive(Clone,Copy,PartialEq)]
enum NumberMode {
Counter,
PktPTS,
FrmPTS,
}
struct FrameOutput {
prefix: String,
streamno: usize,
frameno: u64,
nmode: NumberMode,
}
impl FrameOutput {
fn output_frame(&mut self, pkt: &NAPacket, frm: NAFrameRef) {
if frm.get_frame_type() != FrameType::Skip {
let pts = match self.nmode {
NumberMode::Counter => { self.frameno },
NumberMode::PktPTS => { pkt.get_pts().unwrap() },
NumberMode::FrmPTS => { if let Some(pt) = frm.get_pts() { pt } else { pkt.get_pts().unwrap() } },
};
if write_pnm(&self.prefix, self.streamno, pts, frm).is_err() {
println!("error writing output picture");
}
}
self.frameno += 1;
}
}
struct AudioOutput {
wwr: WavWriter<'static>,
wrote_header: bool,
}
impl AudioOutput {
fn new(name: &str) -> Self { Self { wwr: WavWriter::new(name), wrote_header: false } }
fn output_frame(&mut self, _pkt: &NAPacket, frm: NAFrameRef) {
if !self.wrote_header {
self.wwr.write_header(frm.get_info().as_ref().get_properties().get_audio_info().unwrap()).unwrap();
self.wrote_header = true;
}
self.wwr.write_frame(frm.get_buffer()).unwrap();
}
}
enum Outputter {
Video(FrameOutput),
Audio(AudioOutput),
None,
}
fn main() {
let args: Vec<_> = env::args().collect();
if args.len() == 1 {
println!("usage: nihav-tool [-noout] [-vn] [-an] input [endtime]");
println!(" or invoke nihav-tool --help for more detailed information");
return;
}
if args.len() == 2 && args[1] == "--help" {
println!("usage: nihav-tool [options] input [endtime]");
println!("available options:");
println!(" -noout - decode but do not write output");
println!(" -an - do not decode audio streams");
println!(" -vn - do not decode video streams");
println!(" -nm={{count,pktpts,frmpts}} - use counter/frame PTS/decoded PTS as output image number");
println!(" -skip={{key,intra}} - decode only reference frames (I-/P-) or intra frames only");
println!(" -seek time - try seeking to the given time before starting decoding");
println!(" -apfx/-vpfx prefix - use given prefix when creating output audio/video files instead of default 'out'");
println!(" -ignerr - keep decoding even if decoding error is encountered");
println!(" -dumpfrm - dump raw frame data for all streams");
println!(" endtime - decoding end time, can be given either as time (hh:mm:ss.ms) or as a timestamp (e.g. 42pts)");
return;
}
let mut lastpts = NATimePoint::None;
let mut cur_arg: usize = 1;
let mut noout = false;
let mut decode_video = true;
let mut decode_audio = true;
let mut nmode = NumberMode::FrmPTS;
let mut smode = FrameSkipMode::None;
let mut seek_time = NATimePoint::None;
let mut vpfx: Option<String> = None;
let mut apfx: Option<&str> = None;
let mut ignore_errors = false;
let mut dump_frames = false;
let mut force_dmx: Option<&str> = None;
let mut demux_opts: Vec<NAOption> = Vec::new();
while (cur_arg < args.len()) && args[cur_arg].starts_with('-') {
match args[cur_arg].as_str() {
"--" => { break; },
"-noout" => { noout = true; },
"-an" => { decode_audio = false; },
"-vn" => { decode_video = false; },
"-nm=count" => { nmode = NumberMode::Counter; },
"-nm=pktpts" => { nmode = NumberMode::PktPTS; },
"-nm=frmpts" => { nmode = NumberMode::FrmPTS; },
"-skip=key" => { smode = FrameSkipMode::KeyframesOnly; },
"-skip=intra" => { smode = FrameSkipMode::IntraOnly; },
"-seek" => {
cur_arg += 1;
if cur_arg == args.len() {
println!("seek time missing");
return;
}
let ret = args[cur_arg].parse::<NATimePoint>();
if ret.is_err() {
println!("wrong seek time");
return;
}
seek_time = ret.unwrap();
},
"-apfx" => {
cur_arg += 1;
if cur_arg == args.len() {
println!("name missing");
return;
}
apfx = Some(&args[cur_arg]);
},
"-vpfx" => {
cur_arg += 1;
if cur_arg == args.len() {
println!("name missing");
return;
}
vpfx = Some(args[cur_arg].clone());
},
"-demuxer" => {
cur_arg += 1;
if cur_arg == args.len() {
println!("name missing");
return;
}
force_dmx = Some(&args[cur_arg]);
},
"-print_mov_chunks" => {
demux_opts.push(NAOption{name: "print_chunks", value: NAValue::Bool(true) });
},
"-ignerr" => { ignore_errors = true; },
"-dumpfrm" => { dump_frames = true; },
_ => { println!("unknown option {}", args[cur_arg]); return; },
}
cur_arg += 1;
}
let name = args[cur_arg].as_str();
cur_arg += 1;
if cur_arg < args.len() {
let ret = args[cur_arg].parse::<NATimePoint>();
if ret.is_err() {
println!("cannot parse end time");
return;
}
lastpts = ret.unwrap();
}
let path = Path::new(name);
let file = File::open(path).unwrap();
let file = BufReader::new(file);
let mut fr = FileReader::new_read(file);
let mut br = ByteReader::new(&mut fr);
let (is_raw, start, end) = detect_tags(&mut br);
let mut nfr: Box<dyn ByteIO>;
if start != 0 || end.is_some() {
println!(" limiting range to {:X}-{:X}", start, end.unwrap_or(0));
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 full_reg = FullRegister::new();
let mut demuxer = DemuxerObject::create(&mut br, &full_reg, name, force_dmx, is_raw, &demux_opts);
if demuxer.is_none() {
println!("No demuxer found!");
return;
}
if seek_time != NATimePoint::None {
let ret = demuxer.seek(seek_time);
if ret.is_err() {
println!(" seek error {:?}", ret.err().unwrap());
}
}
let mut decs: Vec<Option<(Box<NADecoderSupport>, Box<dyn NADecoder>)>> = Vec::new();
let mut sids: Vec<u32> = Vec::new();
let mut writers: Vec<Outputter> = Vec::new();
let dec_opts = [NAOption{name: FRAME_SKIP_OPTION, value: NAValue::String(smode.to_string())}];
let duration = demuxer.get_duration();
if duration != 0 {
let s = duration / 1000;
let m = s / 60;
let h = m / 60;
println!(" total duration {}:{:02}:{:02}.{}", h, m % 60, s % 60, (duration / 100) % 10);
}
for i in 0..demuxer.get_num_streams() {
let s = demuxer.get_stream(i).unwrap();
let info = s.get_info();
let decfunc = full_reg.dec_reg.find_decoder(info.get_name());
println!("stream {} - {} {}", i, s, info.get_name());
let str_id = s.get_id();
let mut has_out = false;
sids.push(str_id);
if info.is_video() {
if decode_video {
if decfunc.is_none() {
println!("no video decoder found!");
return;
}
let mut dec = (decfunc.unwrap())();
let mut dsupp = Box::new(NADecoderSupport::new());
dec.init(&mut dsupp, info).unwrap();
dec.set_options(&dec_opts);
decs.push(Some((dsupp, dec)));
if !noout {
writers.push(Outputter::Video(FrameOutput{prefix: if let Some(ref str) = vpfx { str.clone() } else { "out".to_string() }, streamno: i, frameno: 1, nmode}));
has_out = true;
}
} else {
decs.push(None);
}
} else if info.is_audio() {
if decode_audio {
if decfunc.is_none() {
println!("no audio decoder found!");
return;
}
let mut dec = (decfunc.unwrap())();
let mut dsupp = Box::new(NADecoderSupport::new());
dec.init(&mut dsupp, info).unwrap();
decs.push(Some((dsupp, dec)));
if !noout {
let name = if let Some(apfx) = apfx {
format!("{}{:02}.wav", apfx, i)
} else {
format!("out{:02}.wav", i)
};
writers.push(Outputter::Audio(AudioOutput::new(&name)));
has_out = true;
}
} else {
decs.push(None);
}
} else {
decs.push(None);
}
if !has_out {
writers.push(Outputter::None);
}
}
let mut frmnum = 0;
loop {
let pktres = demuxer.get_frame();
if let Err(e) = pktres {
if e == DemuxerError::EOF { break; }
}
let pkt = pktres.unwrap();
let streamno = pkt.get_stream().get_id();
let sr = sids.iter().position(|x| *x == streamno);
let idx = sr.unwrap();
if dump_frames {
let name = format!("out{:02}_{:08}.frm", streamno, pkt.get_pts().unwrap_or(frmnum));
let mut ofile = File::create(name).unwrap();
ofile.write_all(pkt.get_buffer().as_slice()).unwrap();
frmnum += 1;
}
if let Some((ref mut dsupp, ref mut dec)) = decs[idx] {
match dec.decode(dsupp, &pkt) {
Ok(frm) => {
if !noout {
match writers[idx] {
Outputter::Video(ref mut wr) => { wr.output_frame(&pkt, frm); },
Outputter::Audio(ref mut wr) => { wr.output_frame(&pkt, frm); },
_ => {},
};
}
},
Err(DecoderError::MissingReference) if seek_time != NATimePoint::None => {
println!("ignoring missing ref");
},
Err(reason) => {
println!("error decoding frame {:?}", reason);
if !ignore_errors {
break;
}
},
};
if pkt.get_pts() != None && lastpts != NATimePoint::None && !pkt.ts.less_than(lastpts) { break; }
}
}
//panic!("end");
}
|