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Commit | Line | Data |
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66116504 | 1 | #[cfg(feature="demuxer_gdv")] |
5869fd63 | 2 | pub mod gdv; |
66116504 | 3 | #[cfg(feature="demuxer_avi")] |
ca41f125 | 4 | pub mod avi; |
5869fd63 KS |
5 | |
6 | use std::fmt; | |
7 | use std::rc::Rc; | |
8 | use frame::*; | |
66116504 | 9 | use std::collections::HashMap; |
5869fd63 KS |
10 | use io::byteio::*; |
11 | ||
3f7c7cfd | 12 | /// Possible stream types. |
20ef4353 | 13 | #[derive(Debug,Clone,Copy)] |
5869fd63 KS |
14 | #[allow(dead_code)] |
15 | pub enum StreamType { | |
3f7c7cfd | 16 | /// video stream |
5869fd63 | 17 | Video, |
3f7c7cfd | 18 | /// audio stream |
5869fd63 | 19 | Audio, |
3f7c7cfd | 20 | /// subtitles |
5869fd63 | 21 | Subtitles, |
3f7c7cfd | 22 | /// any data stream (or might be an unrecognized audio/video stream) |
5869fd63 | 23 | Data, |
3f7c7cfd | 24 | /// nonexistent stream |
83e603fa | 25 | None, |
5869fd63 KS |
26 | } |
27 | ||
28 | impl fmt::Display for StreamType { | |
29 | fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { | |
30 | match *self { | |
31 | StreamType::Video => write!(f, "Video"), | |
32 | StreamType::Audio => write!(f, "Audio"), | |
33 | StreamType::Subtitles => write!(f, "Subtitles"), | |
34 | StreamType::Data => write!(f, "Data"), | |
83e603fa | 35 | StreamType::None => write!(f, "-"), |
5869fd63 KS |
36 | } |
37 | } | |
38 | } | |
39 | ||
40 | ||
41 | #[allow(dead_code)] | |
20ef4353 | 42 | #[derive(Clone)] |
8869d452 | 43 | pub struct NAStream { |
5869fd63 KS |
44 | media_type: StreamType, |
45 | id: u32, | |
20ef4353 | 46 | num: usize, |
8869d452 | 47 | info: Rc<NACodecInfo>, |
5869fd63 KS |
48 | } |
49 | ||
8869d452 KS |
50 | impl NAStream { |
51 | pub fn new(mt: StreamType, id: u32, info: NACodecInfo) -> Self { | |
20ef4353 | 52 | NAStream { media_type: mt, id: id, num: 0, info: Rc::new(info) } |
5869fd63 KS |
53 | } |
54 | pub fn get_id(&self) -> u32 { self.id } | |
20ef4353 KS |
55 | pub fn get_num(&self) -> usize { self.num } |
56 | pub fn set_num(&mut self, num: usize) { self.num = num; } | |
8869d452 | 57 | pub fn get_info(&self) -> Rc<NACodecInfo> { self.info.clone() } |
5869fd63 KS |
58 | } |
59 | ||
8869d452 | 60 | impl fmt::Display for NAStream { |
5869fd63 | 61 | fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { |
83e603fa | 62 | write!(f, "({}#{} - {})", self.media_type, self.id, self.info.get_properties()) |
5869fd63 KS |
63 | } |
64 | } | |
65 | ||
66 | #[allow(dead_code)] | |
8869d452 KS |
67 | pub struct NAPacket { |
68 | stream: Rc<NAStream>, | |
5869fd63 KS |
69 | pts: Option<u64>, |
70 | dts: Option<u64>, | |
71 | duration: Option<u64>, | |
72 | buffer: Rc<Vec<u8>>, | |
73 | keyframe: bool, | |
74 | // options: HashMap<String, NAValue<'a>>, | |
75 | } | |
76 | ||
8869d452 KS |
77 | impl NAPacket { |
78 | pub fn new(str: Rc<NAStream>, pts: Option<u64>, dts: Option<u64>, dur: Option<u64>, kf: bool, vec: Vec<u8>) -> Self { | |
5869fd63 KS |
79 | // let mut vec: Vec<u8> = Vec::new(); |
80 | // vec.resize(size, 0); | |
81 | NAPacket { stream: str, pts: pts, dts: dts, duration: dur, keyframe: kf, buffer: Rc::new(vec) } | |
82 | } | |
8869d452 | 83 | pub fn get_stream(&self) -> Rc<NAStream> { self.stream.clone() } |
5869fd63 | 84 | pub fn get_pts(&self) -> Option<u64> { self.pts } |
66116504 KS |
85 | pub fn get_dts(&self) -> Option<u64> { self.dts } |
86 | pub fn get_duration(&self) -> Option<u64> { self.duration } | |
87 | pub fn is_keyframe(&self) -> bool { self.keyframe } | |
5869fd63 KS |
88 | pub fn get_buffer(&self) -> Rc<Vec<u8>> { self.buffer.clone() } |
89 | } | |
90 | ||
66116504 KS |
91 | impl Drop for NAPacket { |
92 | fn drop(&mut self) {} | |
93 | } | |
94 | ||
8869d452 | 95 | impl fmt::Display for NAPacket { |
5869fd63 KS |
96 | fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { |
97 | let mut foo = format!("[pkt for {} size {}", self.stream, self.buffer.len()); | |
98 | if let Some(pts) = self.pts { foo = format!("{} pts {}", foo, pts); } | |
99 | if let Some(dts) = self.dts { foo = format!("{} dts {}", foo, dts); } | |
100 | if let Some(dur) = self.duration { foo = format!("{} duration {}", foo, dur); } | |
101 | if self.keyframe { foo = format!("{} kf", foo); } | |
102 | foo = foo + "]"; | |
103 | write!(f, "{}", foo) | |
104 | } | |
105 | } | |
106 | ||
107 | #[derive(Debug)] | |
108 | #[allow(dead_code)] | |
109 | pub enum DemuxerError { | |
110 | EOF, | |
111 | NoSuchInput, | |
112 | InvalidData, | |
113 | IOError, | |
114 | NotImplemented, | |
115 | MemoryError, | |
116 | } | |
117 | ||
118 | type DemuxerResult<T> = Result<T, DemuxerError>; | |
119 | ||
20ef4353 | 120 | pub trait Demux<'a> { |
5869fd63 | 121 | fn open(&mut self) -> DemuxerResult<()>; |
66116504 KS |
122 | fn get_num_streams(&self) -> usize; |
123 | fn get_stream(&self, idx: usize) -> Option<Rc<NAStream>>; | |
5869fd63 KS |
124 | fn get_frame(&mut self) -> DemuxerResult<NAPacket>; |
125 | fn seek(&mut self, time: u64) -> DemuxerResult<()>; | |
126 | } | |
127 | ||
8869d452 KS |
128 | pub trait NAPacketReader { |
129 | fn read_packet(&mut self, str: Rc<NAStream>, pts: Option<u64>, dts: Option<u64>, dur: Option<u64>, keyframe: bool, size: usize) -> DemuxerResult<NAPacket>; | |
5869fd63 KS |
130 | fn fill_packet(&mut self, pkt: &mut NAPacket) -> DemuxerResult<()>; |
131 | } | |
132 | ||
8869d452 KS |
133 | impl<'a> NAPacketReader for ByteReader<'a> { |
134 | fn read_packet(&mut self, str: Rc<NAStream>, pts: Option<u64>, dts: Option<u64>, dur: Option<u64>, kf: bool, size: usize) -> DemuxerResult<NAPacket> { | |
5869fd63 KS |
135 | let mut buf: Vec<u8> = Vec::with_capacity(size); |
136 | if buf.capacity() < size { return Err(DemuxerError::MemoryError); } | |
137 | buf.resize(size, 0); | |
138 | let res = self.read_buf(buf.as_mut_slice()); | |
139 | if let Err(_) = res { return Err(DemuxerError::IOError); } | |
5869fd63 KS |
140 | let pkt = NAPacket::new(str, pts, dts, dur, kf, buf); |
141 | Ok(pkt) | |
142 | } | |
143 | fn fill_packet(&mut self, pkt: &mut NAPacket) -> DemuxerResult<()> { | |
144 | let mut refbuf = pkt.get_buffer(); | |
145 | let mut buf = Rc::make_mut(&mut refbuf); | |
146 | let res = self.read_buf(buf.as_mut_slice()); | |
147 | if let Err(_) = res { return Err(DemuxerError::IOError); } | |
5869fd63 KS |
148 | Ok(()) |
149 | } | |
150 | } | |
151 | ||
999ca6c9 | 152 | struct Demuxer { |
20ef4353 KS |
153 | streams: Vec<Rc<NAStream>>, |
154 | } | |
155 | ||
156 | impl Demuxer { | |
157 | pub fn new() -> Self { Demuxer { streams: Vec::new() } } | |
158 | pub fn add_stream(&mut self, stream: NAStream) -> Option<usize> { | |
159 | let stream_num = self.streams.len(); | |
160 | let mut str = stream.clone(); | |
161 | str.set_num(stream_num); | |
162 | self.streams.push(Rc::new(str)); | |
163 | Some(stream_num) | |
164 | } | |
165 | pub fn get_stream(&self, idx: usize) -> Option<Rc<NAStream>> { | |
166 | if idx < self.streams.len() { | |
167 | Some(self.streams[idx].clone()) | |
168 | } else { | |
169 | None | |
170 | } | |
171 | } | |
999ca6c9 | 172 | #[allow(dead_code)] |
20ef4353 KS |
173 | pub fn get_stream_by_id(&self, id: u32) -> Option<Rc<NAStream>> { |
174 | for i in 0..self.streams.len() { | |
175 | if self.streams[i].get_id() == id { | |
176 | return Some(self.streams[i].clone()); | |
177 | } | |
178 | } | |
179 | None | |
180 | } | |
66116504 | 181 | pub fn get_num_streams(&self) -> usize { self.streams.len() } |
5869fd63 KS |
182 | } |
183 | ||
184 | impl From<ByteIOError> for DemuxerError { | |
185 | fn from(_: ByteIOError) -> Self { DemuxerError::IOError } | |
186 | } | |
187 | ||
66116504 KS |
188 | pub trait FrameFromPacket { |
189 | fn new_from_pkt(pkt: &NAPacket, info: Rc<NACodecInfo>) -> NAFrame; | |
190 | fn fill_timestamps(&mut self, pkt: &NAPacket); | |
191 | } | |
192 | ||
193 | impl FrameFromPacket for NAFrame { | |
194 | fn new_from_pkt(pkt: &NAPacket, info: Rc<NACodecInfo>) -> NAFrame { | |
195 | NAFrame::new(pkt.pts, pkt.dts, pkt.duration, info, HashMap::new()) | |
196 | } | |
197 | fn fill_timestamps(&mut self, pkt: &NAPacket) { | |
198 | self.set_pts(pkt.pts); | |
199 | self.set_dts(pkt.dts); | |
200 | self.set_duration(pkt.duration); | |
201 | } | |
202 | } | |
eb71d98f | 203 | |
3f7c7cfd | 204 | ///The structure used to create demuxers. |
eb71d98f | 205 | pub trait DemuxerCreator { |
3f7c7cfd | 206 | /// Create new demuxer instance that will use `ByteReader` source as an input. |
eb71d98f | 207 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<Demux<'a> + 'a>; |
3f7c7cfd | 208 | /// Get the name of current demuxer creator. |
eb71d98f KS |
209 | fn get_name(&self) -> &'static str; |
210 | } | |
211 | ||
212 | const DEMUXERS: &[&'static DemuxerCreator] = &[ | |
213 | #[cfg(feature="demuxer_avi")] | |
214 | &avi::AVIDemuxerCreator {}, | |
215 | #[cfg(feature="demuxer_gdv")] | |
216 | &gdv::GDVDemuxerCreator {}, | |
217 | ]; | |
218 | ||
219 | pub fn find_demuxer(name: &str) -> Option<&DemuxerCreator> { | |
3f7c7cfd KS |
220 | for &dmx in DEMUXERS { |
221 | if dmx.get_name() == name { | |
222 | return Some(dmx); | |
eb71d98f KS |
223 | } |
224 | } | |
225 | None | |
226 | } |