| 1 | extern crate nihav; |
| 2 | |
| 3 | use std::io::prelude::*; |
| 4 | use std::io::SeekFrom; |
| 5 | use std::fs::File; |
| 6 | use std::path::Path; |
| 7 | use nihav::io::byteio::{FileReader, ByteReader}; |
| 8 | use nihav::frame::*; |
| 9 | use nihav::codecs::*; |
| 10 | use nihav::demuxers::*; |
| 11 | use nihav::detect; |
| 12 | use std::env; |
| 13 | |
| 14 | fn write_pgmyuv(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) { |
| 15 | let frm = frmref.borrow(); |
| 16 | if let NABufferType::None = frm.get_buffer() { return; } |
| 17 | let name = format!("{}out{:02}_{:04}.pgm", pfx, strno, num); |
| 18 | let mut ofile = File::create(name).unwrap(); |
| 19 | let buf = frm.get_buffer().get_vbuf().unwrap(); |
| 20 | let (w, h) = buf.get_dimensions(0); |
| 21 | let (w2, h2) = buf.get_dimensions(1); |
| 22 | let tot_h = h + h2; |
| 23 | let hdr = format!("P5\n{} {}\n255\n", w, tot_h); |
| 24 | ofile.write_all(hdr.as_bytes()).unwrap(); |
| 25 | let dta = buf.get_data(); |
| 26 | let ls = buf.get_stride(0); |
| 27 | let mut idx = 0; |
| 28 | let mut idx2 = w; |
| 29 | let mut pad: Vec<u8> = Vec::with_capacity((w - w2 * 2) / 2); |
| 30 | pad.resize((w - w2 * 2) / 2, 0xFF); |
| 31 | for _ in 0..h { |
| 32 | let line = &dta[idx..idx2]; |
| 33 | ofile.write_all(line).unwrap(); |
| 34 | idx += ls; |
| 35 | idx2 += ls; |
| 36 | } |
| 37 | let mut base1 = buf.get_offset(1); |
| 38 | let stride1 = buf.get_stride(1); |
| 39 | let mut base2 = buf.get_offset(2); |
| 40 | let stride2 = buf.get_stride(2); |
| 41 | for _ in 0..h2 { |
| 42 | let bend1 = base1 + w2; |
| 43 | let line = &dta[base1..bend1]; |
| 44 | ofile.write_all(line).unwrap(); |
| 45 | ofile.write_all(pad.as_slice()).unwrap(); |
| 46 | |
| 47 | let bend2 = base2 + w2; |
| 48 | let line = &dta[base2..bend2]; |
| 49 | ofile.write_all(line).unwrap(); |
| 50 | ofile.write_all(pad.as_slice()).unwrap(); |
| 51 | |
| 52 | base1 += stride1; |
| 53 | base2 += stride2; |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | fn write_palppm(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) { |
| 58 | let frm = frmref.borrow(); |
| 59 | let name = format!("{}out{:02}_{:04}.ppm", pfx, strno, num); |
| 60 | let mut ofile = File::create(name).unwrap(); |
| 61 | let buf = frm.get_buffer().get_vbuf().unwrap(); |
| 62 | let (w, h) = buf.get_dimensions(0); |
| 63 | let paloff = buf.get_offset(1); |
| 64 | let hdr = format!("P6\n{} {}\n255\n", w, h); |
| 65 | ofile.write_all(hdr.as_bytes()).unwrap(); |
| 66 | let dta = buf.get_data(); |
| 67 | let ls = buf.get_stride(0); |
| 68 | let mut idx = 0; |
| 69 | let mut line: Vec<u8> = Vec::with_capacity(w * 3); |
| 70 | line.resize(w * 3, 0); |
| 71 | for _ in 0..h { |
| 72 | let src = &dta[idx..(idx+w)]; |
| 73 | for x in 0..w { |
| 74 | let pix = src[x] as usize; |
| 75 | line[x * 3 + 0] = dta[paloff + pix * 3 + 2]; |
| 76 | line[x * 3 + 1] = dta[paloff + pix * 3 + 1]; |
| 77 | line[x * 3 + 2] = dta[paloff + pix * 3 + 0]; |
| 78 | } |
| 79 | ofile.write_all(line.as_slice()).unwrap(); |
| 80 | idx += ls; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | fn main() { |
| 85 | let args: Vec<_> = env::args().collect(); |
| 86 | |
| 87 | if args.len() == 1 { return; } |
| 88 | let lastpts = if args.len() > 2 { |
| 89 | Some(u64::from_str_radix(args[2].as_str(), 10).unwrap()) |
| 90 | } else { None }; |
| 91 | |
| 92 | let name = args[1].as_str(); |
| 93 | let path = Path::new(name); |
| 94 | let mut file = File::open(path).unwrap(); |
| 95 | let dmx_fact; |
| 96 | let mut fr = FileReader::new_read(&mut file); |
| 97 | let mut br = ByteReader::new(&mut fr); |
| 98 | let res = detect::detect_format(name, &mut br); |
| 99 | if res.is_none() { |
| 100 | println!("cannot detect format for {}", name); |
| 101 | return; |
| 102 | } |
| 103 | let (dmx_name, _) = res.unwrap(); |
| 104 | println!("trying demuxer {}", dmx_name); |
| 105 | dmx_fact = find_demuxer(dmx_name).unwrap(); |
| 106 | br.seek(SeekFrom::Start(0)).unwrap(); |
| 107 | let mut dmx = dmx_fact.new_demuxer(&mut br); |
| 108 | dmx.open().unwrap(); |
| 109 | |
| 110 | let mut decs: Vec<Option<Box<NADecoder>>> = Vec::new(); |
| 111 | for i in 0..dmx.get_num_streams() { |
| 112 | let s = dmx.get_stream(i).unwrap(); |
| 113 | let info = s.get_info(); |
| 114 | let decfunc = find_decoder(info.get_name()); |
| 115 | if !info.is_video() { |
| 116 | decs.push(None); |
| 117 | } else if let Some(df) = decfunc { |
| 118 | let mut dec = (df)(); |
| 119 | dec.init(info).unwrap(); |
| 120 | decs.push(Some(dec)); |
| 121 | } else { |
| 122 | panic!("decoder {} not found", info.get_name()); |
| 123 | } |
| 124 | } |
| 125 | |
| 126 | loop { |
| 127 | let pktres = dmx.get_frame(); |
| 128 | if let Err(e) = pktres { |
| 129 | if e == DemuxerError::EOF { break; } |
| 130 | } |
| 131 | let pkt = pktres.unwrap(); |
| 132 | let streamno = pkt.get_stream().get_id() as usize; |
| 133 | if let Some(ref mut dec) = decs[streamno] { |
| 134 | let frm = dec.decode(&pkt).unwrap(); |
| 135 | if pkt.get_stream().get_info().is_video() { |
| 136 | if frm.borrow().get_frame_type() != FrameType::Skip { |
| 137 | if frm.borrow().get_buffer().get_vbuf().unwrap().get_info().get_format().is_paletted() { |
| 138 | write_palppm("", streamno, pkt.get_pts().unwrap(), frm); |
| 139 | } else { |
| 140 | write_pgmyuv("", streamno, pkt.get_pts().unwrap(), frm); |
| 141 | } |
| 142 | } |
| 143 | } |
| 144 | } |
| 145 | if pkt.get_pts() != None && pkt.get_pts() == lastpts { break; } |
| 146 | } |
| 147 | //panic!("end"); |
| 148 | } |