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5869fd63 KS |
1 | use super::*; |
2 | use io::byteio::*; | |
3 | use frame::*; | |
20ef4353 | 4 | use formats::*; |
5869fd63 KS |
5 | //use std::collections::HashMap; |
6 | ||
7 | enum GDVState { | |
8 | NewFrame, | |
9 | AudioRead, | |
10 | } | |
11 | ||
12 | #[allow(dead_code)] | |
eb71d98f | 13 | struct GremlinVideoDemuxer<'a> { |
20ef4353 KS |
14 | opened: bool, |
15 | src: &'a mut ByteReader<'a>, | |
16 | frames: u16, | |
17 | cur_frame: u16, | |
18 | asize: usize, | |
19 | apacked: bool, | |
20 | state: GDVState, | |
21 | pktdta: Vec<u8>, | |
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22 | a_id: Option<usize>, |
23 | v_id: Option<usize>, | |
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24 | } |
25 | ||
56af6a92 KS |
26 | struct GDVFixedSizes { |
27 | id: u16, | |
28 | width: u16, | |
29 | height: u16, | |
30 | } | |
31 | const GDV_SIZE_TABLE: &[GDVFixedSizes] = &[ | |
32 | GDVFixedSizes { id: 0, width: 320, height: 200 }, | |
33 | GDVFixedSizes { id: 1, width: 640, height: 200 }, | |
34 | GDVFixedSizes { id: 2, width: 320, height: 167 }, | |
35 | GDVFixedSizes { id: 3, width: 320, height: 180 }, | |
36 | GDVFixedSizes { id: 4, width: 320, height: 400 }, | |
37 | GDVFixedSizes { id: 5, width: 320, height: 170 }, | |
38 | GDVFixedSizes { id: 6, width: 160, height: 85 }, | |
39 | GDVFixedSizes { id: 7, width: 160, height: 83 }, | |
40 | GDVFixedSizes { id: 8, width: 160, height: 90 }, | |
41 | GDVFixedSizes { id: 9, width: 280, height: 128 }, | |
42 | GDVFixedSizes { id: 10, width: 320, height: 240 }, | |
43 | GDVFixedSizes { id: 11, width: 320, height: 201 }, | |
44 | GDVFixedSizes { id: 16, width: 640, height: 400 }, | |
45 | GDVFixedSizes { id: 17, width: 640, height: 200 }, | |
46 | GDVFixedSizes { id: 18, width: 640, height: 180 }, | |
47 | GDVFixedSizes { id: 19, width: 640, height: 167 }, | |
48 | GDVFixedSizes { id: 20, width: 640, height: 170 }, | |
49 | GDVFixedSizes { id: 21, width: 320, height: 240 }, | |
50 | ]; | |
51 | ||
bcfeae48 | 52 | impl<'a> DemuxCore<'a> for GremlinVideoDemuxer<'a> { |
5869fd63 | 53 | #[allow(unused_variables)] |
bcfeae48 | 54 | fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { |
5869fd63 KS |
55 | let src = &mut self.src; |
56 | let magic = src.read_u32le()?; | |
57 | if magic != 0x29111994 { return Err(DemuxerError::InvalidData); } | |
58 | let id = src.read_u16le()?; | |
59 | let frames = src.read_u16le()?; | |
60 | let fps = src.read_u16le()?; | |
61 | let aflags = src.read_u16le()?; | |
62 | let rate = src.read_u16le()?; | |
63 | let depth = src.read_u16le()?; | |
64 | let max_fs = src.read_u16le()?; | |
65 | src.read_skip(2)?; | |
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66 | let mut width = src.read_u16le()?; |
67 | let mut height = src.read_u16le()?; | |
68 | if (width == 0) && (height == 0) { | |
69 | for el in GDV_SIZE_TABLE { | |
70 | if el.id == id { | |
71 | width = el.width; | |
72 | height = el.height; | |
73 | break; | |
74 | } | |
75 | } | |
76 | if (width == 0) && (height == 0) { return Err(DemuxerError::InvalidData); } | |
77 | } | |
5869fd63 | 78 | if max_fs > 0 { |
81b3165f KS |
79 | let mut edata: Vec<u8> = Vec::with_capacity(768); |
80 | if depth == 1 { | |
81 | edata.resize(768, 0); | |
82 | src.read_buf(edata.as_mut_slice())?; | |
83 | } | |
66116504 | 84 | let vhdr = NAVideoInfo::new(width as usize, height as usize, false, PAL8_FORMAT); |
5869fd63 | 85 | let vci = NACodecTypeInfo::Video(vhdr); |
81b3165f | 86 | let vinfo = NACodecInfo::new("gdv-video", vci, if edata.len() == 0 { None } else { Some(edata) }); |
bcfeae48 | 87 | self.v_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 1, fps as u32)); |
5869fd63 KS |
88 | } |
89 | if (aflags & 1) != 0 { | |
90 | let channels = if (aflags & 2) != 0 { 2 } else { 1 }; | |
81b3165f KS |
91 | let packed = if (aflags & 8) != 0 { 1 } else { 0 }; |
92 | let depth = if (aflags & 4) != 0 { 16 } else { 8 }; | |
93 | ||
94 | let ahdr = NAAudioInfo::new(rate as u32, channels as u8, if depth == 16 { SND_S16_FORMAT } else { SND_U8_FORMAT }, 2); | |
95 | let ainfo = NACodecInfo::new(if packed != 0 { "gdv-audio" } else { "pcm" }, | |
96 | NACodecTypeInfo::Audio(ahdr), None); | |
bcfeae48 | 97 | self.a_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, rate as u32)); |
5869fd63 | 98 | |
81b3165f | 99 | self.asize = (((rate / fps) * channels * (depth / 8)) >> packed) as usize; |
5869fd63 | 100 | self.apacked = (aflags & 8) != 0; |
5869fd63 | 101 | } |
5869fd63 KS |
102 | self.frames = frames; |
103 | self.opened = true; | |
104 | self.state = GDVState::NewFrame; | |
105 | Ok(()) | |
106 | } | |
107 | ||
108 | #[allow(unused_variables)] | |
bcfeae48 | 109 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
5869fd63 KS |
110 | if !self.opened { return Err(DemuxerError::NoSuchInput); } |
111 | if self.cur_frame >= self.frames { return Err(DemuxerError::EOF); } | |
112 | match self.state { | |
bcfeae48 KS |
113 | GDVState::NewFrame if self.asize > 0 => { self.read_achunk(strmgr) } |
114 | _ => { self.read_vchunk(strmgr) } | |
5869fd63 KS |
115 | } |
116 | } | |
117 | ||
118 | #[allow(unused_variables)] | |
119 | fn seek(&mut self, time: u64) -> DemuxerResult<()> { | |
120 | if !self.opened { return Err(DemuxerError::NoSuchInput); } | |
121 | Err(DemuxerError::NotImplemented) | |
122 | } | |
123 | } | |
124 | /*impl<'a> Drop for GremlinVideoDemuxer<'a> { | |
125 | #[allow(unused_variables)] | |
126 | fn drop(&mut self) { | |
127 | } | |
128 | }*/ | |
129 | impl<'a> GremlinVideoDemuxer<'a> { | |
eb71d98f | 130 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
5869fd63 KS |
131 | GremlinVideoDemuxer { |
132 | cur_frame: 0, | |
133 | frames: 0, | |
134 | opened: false, | |
135 | asize: 0, | |
136 | apacked: false, | |
137 | state: GDVState::NewFrame, | |
138 | pktdta: Vec::new(), | |
139 | src: io, | |
20ef4353 KS |
140 | a_id: None, |
141 | v_id: None, | |
5869fd63 KS |
142 | } |
143 | } | |
144 | ||
bcfeae48 | 145 | fn read_achunk(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
5869fd63 | 146 | self.state = GDVState::AudioRead; |
bcfeae48 | 147 | let str = strmgr.get_stream(self.a_id.unwrap()).unwrap(); |
e189501e KS |
148 | let (tb_num, tb_den) = str.get_timebase(); |
149 | let ts = NATimeInfo::new(Some(self.cur_frame as u64), None, None, tb_num, tb_den); | |
150 | self.src.read_packet(str, ts, true, self.asize) | |
5869fd63 KS |
151 | } |
152 | ||
bcfeae48 KS |
153 | fn read_vchunk(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
154 | let str = strmgr.get_stream(self.v_id.unwrap()).unwrap(); | |
5869fd63 KS |
155 | let mut src = &mut self.src; |
156 | let magic = src.read_u16be()?; | |
157 | if magic != 0x0513 { return Err(DemuxerError::InvalidData); } | |
158 | let size = (src.read_u16le()? as usize) + 4; | |
e24794ee | 159 | let tmp = src.peek_u32le()?; |
5869fd63 | 160 | let flags = (tmp & 0xFF) as usize; |
5869fd63 KS |
161 | self.state = GDVState::NewFrame; |
162 | self.cur_frame = self.cur_frame + 1; | |
e189501e KS |
163 | let (tb_num, tb_den) = str.get_timebase(); |
164 | let ts = NATimeInfo::new(Some((self.cur_frame - 1) as u64), None, None, tb_num, tb_den); | |
165 | src.read_packet(str, ts, if (flags & 64) != 0 { true } else { false }, size) | |
5869fd63 KS |
166 | } |
167 | } | |
168 | ||
eb71d98f KS |
169 | pub struct GDVDemuxerCreator { } |
170 | ||
171 | impl DemuxerCreator for GDVDemuxerCreator { | |
bcfeae48 | 172 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<DemuxCore<'a> + 'a> { |
eb71d98f KS |
173 | Box::new(GremlinVideoDemuxer::new(br)) |
174 | } | |
175 | fn get_name(&self) -> &'static str { "gdv" } | |
176 | } | |
177 | ||
5869fd63 KS |
178 | #[cfg(test)] |
179 | mod test { | |
180 | use super::*; | |
181 | use std::fs::File; | |
182 | ||
183 | #[test] | |
184 | fn test_gdv_demux() { | |
185 | let mut file = File::open("assets/intro1.gdv").unwrap(); | |
186 | let mut fr = FileReader::new_read(&mut file); | |
187 | let mut br = ByteReader::new(&mut fr); | |
188 | let mut dmx = GremlinVideoDemuxer::new(&mut br); | |
bcfeae48 KS |
189 | let mut sm = StreamManager::new(); |
190 | dmx.open(&mut sm).unwrap(); | |
5869fd63 | 191 | loop { |
bcfeae48 | 192 | let pktres = dmx.get_frame(&mut sm); |
5869fd63 KS |
193 | if let Err(e) = pktres { |
194 | if (e as i32) == (DemuxerError::EOF as i32) { break; } | |
195 | panic!("error"); | |
196 | } | |
197 | let pkt = pktres.unwrap(); | |
198 | println!("Got {}", pkt); | |
199 | } | |
200 | } | |
201 | } |