Commit | Line | Data |
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019f9f9c KS |
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 | } |