nihav-core/src/frame.rs

   1 use std::cmp::max;
   2 use std::collections::HashMap;
   3 use std::fmt;
   4 pub use std::rc::Rc;
   5 pub use std::cell::*;
   6 pub use crate::formats::*;
   7
   8 #[allow(dead_code)]
   9 #[derive(Clone,Copy,PartialEq)]
  10 pub struct NAAudioInfo {
  11     sample_rate: u32,
  12     channels:    u8,
  13     format:      NASoniton,
  14     block_len:   usize,
  15 }
  16
  17 impl NAAudioInfo {
  18     pub fn new(sr: u32, ch: u8, fmt: NASoniton, bl: usize) -> Self {
  19         NAAudioInfo { sample_rate: sr, channels: ch, format: fmt, block_len: bl }
  20     }
  21     pub fn get_sample_rate(&self) -> u32 { self.sample_rate }
  22     pub fn get_channels(&self) -> u8 { self.channels }
  23     pub fn get_format(&self) -> NASoniton { self.format }
  24     pub fn get_block_len(&self) -> usize { self.block_len }
  25 }
  26
  27 impl fmt::Display for NAAudioInfo {
  28     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
  29         write!(f, "{} Hz, {} ch", self.sample_rate, self.channels)
  30     }
  31 }
  32
  33 #[allow(dead_code)]
  34 #[derive(Clone,Copy,PartialEq)]
  35 pub struct NAVideoInfo {
  36     width:      usize,
  37     height:     usize,
  38     flipped:    bool,
  39     format:     NAPixelFormaton,
  40 }
  41
  42 impl NAVideoInfo {
  43     pub fn new(w: usize, h: usize, flip: bool, fmt: NAPixelFormaton) -> Self {
  44         NAVideoInfo { width: w, height: h, flipped: flip, format: fmt }
  45     }
  46     pub fn get_width(&self)  -> usize { self.width as usize }
  47     pub fn get_height(&self) -> usize { self.height as usize }
  48     pub fn is_flipped(&self) -> bool { self.flipped }
  49     pub fn get_format(&self) -> NAPixelFormaton { self.format }
  50     pub fn set_width(&mut self, w: usize)  { self.width  = w; }
  51     pub fn set_height(&mut self, h: usize) { self.height = h; }
  52 }
  53
  54 impl fmt::Display for NAVideoInfo {
  55     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
  56         write!(f, "{}x{}", self.width, self.height)
  57     }
  58 }
  59
  60 #[derive(Clone,Copy,PartialEq)]
  61 pub enum NACodecTypeInfo {
  62     None,
  63     Audio(NAAudioInfo),
  64     Video(NAVideoInfo),
  65 }
  66
  67 impl NACodecTypeInfo {
  68     pub fn get_video_info(&self) -> Option<NAVideoInfo> {
  69         match *self {
  70             NACodecTypeInfo::Video(vinfo) => Some(vinfo),
  71             _ => None,
  72         }
  73     }
  74     pub fn get_audio_info(&self) -> Option<NAAudioInfo> {
  75         match *self {
  76             NACodecTypeInfo::Audio(ainfo) => Some(ainfo),
  77             _ => None,
  78         }
  79     }
  80     pub fn is_video(&self) -> bool {
  81         match *self {
  82             NACodecTypeInfo::Video(_) => true,
  83             _ => false,
  84         }
  85     }
  86     pub fn is_audio(&self) -> bool {
  87         match *self {
  88             NACodecTypeInfo::Audio(_) => true,
  89             _ => false,
  90         }
  91     }
  92 }
  93
  94 impl fmt::Display for NACodecTypeInfo {
  95     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
  96         let ret = match *self {
  97             NACodecTypeInfo::None       => format!(""),
  98             NACodecTypeInfo::Audio(fmt) => format!("{}", fmt),
  99             NACodecTypeInfo::Video(fmt) => format!("{}", fmt),
 100         };
 101         write!(f, "{}", ret)
 102     }
 103 }
 104
 105 pub type NABufferRefT<T> = Rc<RefCell<Vec<T>>>;
 106
 107 #[derive(Clone)]
 108 pub struct NAVideoBuffer<T> {
 109     info:    NAVideoInfo,
 110     data:    NABufferRefT<T>,
 111     offs:    Vec<usize>,
 112     strides: Vec<usize>,
 113 }
 114
 115 impl<T: Clone> NAVideoBuffer<T> {
 116     pub fn get_offset(&self, idx: usize) -> usize {
 117         if idx >= self.offs.len() { 0 }
 118         else { self.offs[idx] }
 119     }
 120     pub fn get_info(&self) -> NAVideoInfo { self.info }
 121     pub fn get_data(&self) -> Ref<Vec<T>> { self.data.borrow() }
 122     pub fn get_data_mut(&mut self) -> RefMut<Vec<T>> { self.data.borrow_mut() }
 123     pub fn copy_buffer(&mut self) -> Self {
 124         let mut data: Vec<T> = Vec::with_capacity(self.data.borrow().len());
 125         data.clone_from(self.data.borrow().as_ref());
 126         let mut offs: Vec<usize> = Vec::with_capacity(self.offs.len());
 127         offs.clone_from(&self.offs);
 128         let mut strides: Vec<usize> = Vec::with_capacity(self.strides.len());
 129         strides.clone_from(&self.strides);
 130         NAVideoBuffer { info: self.info, data: Rc::new(RefCell::new(data)), offs: offs, strides: strides }
 131     }
 132     pub fn get_stride(&self, idx: usize) -> usize {
 133         if idx >= self.strides.len() { return 0; }
 134         self.strides[idx]
 135     }
 136     pub fn get_dimensions(&self, idx: usize) -> (usize, usize) {
 137         get_plane_size(&self.info, idx)
 138     }
 139 }
 140
 141 #[derive(Clone)]
 142 pub struct NAAudioBuffer<T> {
 143     info:   NAAudioInfo,
 144     data:   NABufferRefT<T>,
 145     offs:   Vec<usize>,
 146     chmap:  NAChannelMap,
 147     len:    usize,
 148 }
 149
 150 impl<T: Clone> NAAudioBuffer<T> {
 151     pub fn get_offset(&self, idx: usize) -> usize {
 152         if idx >= self.offs.len() { 0 }
 153         else { self.offs[idx] }
 154     }
 155     pub fn get_info(&self) -> NAAudioInfo { self.info }
 156     pub fn get_chmap(&self) -> NAChannelMap { self.chmap.clone() }
 157     pub fn get_data(&self) -> Ref<Vec<T>> { self.data.borrow() }
 158     pub fn get_data_mut(&mut self) -> RefMut<Vec<T>> { self.data.borrow_mut() }
 159     pub fn copy_buffer(&mut self) -> Self {
 160         let mut data: Vec<T> = Vec::with_capacity(self.data.borrow().len());
 161         data.clone_from(self.data.borrow().as_ref());
 162         let mut offs: Vec<usize> = Vec::with_capacity(self.offs.len());
 163         offs.clone_from(&self.offs);
 164         NAAudioBuffer { info: self.info, data: Rc::new(RefCell::new(data)), offs: offs, chmap: self.get_chmap(), len: self.len }
 165     }
 166     pub fn get_length(&self) -> usize { self.len }
 167 }
 168
 169 impl NAAudioBuffer<u8> {
 170     pub fn new_from_buf(info: NAAudioInfo, data: NABufferRefT<u8>, chmap: NAChannelMap) -> Self {
 171         let len = data.borrow().len();
 172         NAAudioBuffer { info: info, data: data, chmap: chmap, offs: Vec::new(), len: len }
 173     }
 174 }
 175
 176 #[derive(Clone)]
 177 pub enum NABufferType {
 178     Video      (NAVideoBuffer<u8>),
 179     Video16    (NAVideoBuffer<u16>),
 180     Video32    (NAVideoBuffer<u32>),
 181     VideoPacked(NAVideoBuffer<u8>),
 182     AudioU8    (NAAudioBuffer<u8>),
 183     AudioI16   (NAAudioBuffer<i16>),
 184     AudioI32   (NAAudioBuffer<i32>),
 185     AudioF32   (NAAudioBuffer<f32>),
 186     AudioPacked(NAAudioBuffer<u8>),
 187     Data       (NABufferRefT<u8>),
 188     None,
 189 }
 190
 191 impl NABufferType {
 192     pub fn get_offset(&self, idx: usize) -> usize {
 193         match *self {
 194             NABufferType::Video(ref vb)       => vb.get_offset(idx),
 195             NABufferType::Video16(ref vb)     => vb.get_offset(idx),
 196             NABufferType::Video32(ref vb)     => vb.get_offset(idx),
 197             NABufferType::VideoPacked(ref vb) => vb.get_offset(idx),
 198             NABufferType::AudioU8(ref ab)     => ab.get_offset(idx),
 199             NABufferType::AudioI16(ref ab)    => ab.get_offset(idx),
 200             NABufferType::AudioF32(ref ab)    => ab.get_offset(idx),
 201             NABufferType::AudioPacked(ref ab) => ab.get_offset(idx),
 202             _ => 0,
 203         }
 204     }
 205     pub fn get_video_info(&self) -> Option<NAVideoInfo> {
 206         match *self {
 207             NABufferType::Video(ref vb)       => Some(vb.get_info()),
 208             NABufferType::Video16(ref vb)     => Some(vb.get_info()),
 209             NABufferType::Video32(ref vb)     => Some(vb.get_info()),
 210             NABufferType::VideoPacked(ref vb) => Some(vb.get_info()),
 211             _ => None,
 212         }
 213     }
 214     pub fn get_vbuf(&self) -> Option<NAVideoBuffer<u8>> {
 215         match *self {
 216             NABufferType::Video(ref vb)       => Some(vb.clone()),
 217             NABufferType::VideoPacked(ref vb) => Some(vb.clone()),
 218             _ => None,
 219         }
 220     }
 221     pub fn get_vbuf16(&self) -> Option<NAVideoBuffer<u16>> {
 222         match *self {
 223             NABufferType::Video16(ref vb)     => Some(vb.clone()),
 224             _ => None,
 225         }
 226     }
 227     pub fn get_vbuf32(&self) -> Option<NAVideoBuffer<u32>> {
 228         match *self {
 229             NABufferType::Video32(ref vb)     => Some(vb.clone()),
 230             _ => None,
 231         }
 232     }
 233     pub fn get_abuf_u8(&self) -> Option<NAAudioBuffer<u8>> {
 234         match *self {
 235             NABufferType::AudioU8(ref ab) => Some(ab.clone()),
 236             NABufferType::AudioPacked(ref ab) => Some(ab.clone()),
 237             _ => None,
 238         }
 239     }
 240     pub fn get_abuf_i16(&self) -> Option<NAAudioBuffer<i16>> {
 241         match *self {
 242             NABufferType::AudioI16(ref ab) => Some(ab.clone()),
 243             _ => None,
 244         }
 245     }
 246     pub fn get_abuf_i32(&self) -> Option<NAAudioBuffer<i32>> {
 247         match *self {
 248             NABufferType::AudioI32(ref ab) => Some(ab.clone()),
 249             _ => None,
 250         }
 251     }
 252     pub fn get_abuf_f32(&self) -> Option<NAAudioBuffer<f32>> {
 253         match *self {
 254             NABufferType::AudioF32(ref ab) => Some(ab.clone()),
 255             _ => None,
 256         }
 257     }
 258 }
 259
 260 #[derive(Debug,Clone,Copy,PartialEq)]
 261 pub enum AllocatorError {
 262     TooLargeDimensions,
 263     FormatError,
 264 }
 265
 266 pub fn alloc_video_buffer(vinfo: NAVideoInfo, align: u8) -> Result<NABufferType, AllocatorError> {
 267     let fmt = &vinfo.format;
 268     let mut new_size: usize = 0;
 269     let mut offs:    Vec<usize> = Vec::new();
 270     let mut strides: Vec<usize> = Vec::new();
 271
 272     for i in 0..fmt.get_num_comp() {
 273         if fmt.get_chromaton(i) == None { return Err(AllocatorError::FormatError); }
 274     }
 275
 276     let align_mod = ((1 << align) as usize) - 1;
 277     let width  = ((vinfo.width  as usize) + align_mod) & !align_mod;
 278     let height = ((vinfo.height as usize) + align_mod) & !align_mod;
 279     let mut max_depth = 0;
 280     let mut all_packed = true;
 281     let mut all_bytealigned = true;
 282     for i in 0..fmt.get_num_comp() {
 283         let ochr = fmt.get_chromaton(i);
 284         if let None = ochr { continue; }
 285         let chr = ochr.unwrap();
 286         if !chr.is_packed() {
 287             all_packed = false;
 288         } else if ((chr.get_shift() + chr.get_depth()) & 7) != 0 {
 289             all_bytealigned = false;
 290         }
 291         max_depth = max(max_depth, chr.get_depth());
 292     }
 293     let unfit_elem_size = match fmt.get_elem_size() {
 294             2 | 4 => false,
 295             _ => true,
 296         };
 297
 298 //todo semi-packed like NV12
 299     if fmt.is_paletted() {
 300 //todo various-sized palettes?
 301         let stride = vinfo.get_format().get_chromaton(0).unwrap().get_linesize(width);
 302         let pic_sz = stride.checked_mul(height);
 303         if pic_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 304         let pal_size = 256 * (fmt.get_elem_size() as usize);
 305         let new_size = pic_sz.unwrap().checked_add(pal_size);
 306         if new_size == None { return Err(AllocatorError::TooLargeDimensions); }
 307         offs.push(0);
 308         offs.push(stride * height);
 309         strides.push(stride);
 310         let mut data: Vec<u8> = Vec::with_capacity(new_size.unwrap());
 311         data.resize(new_size.unwrap(), 0);
 312         let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: Rc::new(RefCell::new(data)), info: vinfo, offs: offs, strides: strides };
 313         Ok(NABufferType::Video(buf))
 314     } else if !all_packed {
 315         for i in 0..fmt.get_num_comp() {
 316             let ochr = fmt.get_chromaton(i);
 317             if let None = ochr { continue; }
 318             let chr = ochr.unwrap();
 319             if !vinfo.is_flipped() {
 320                 offs.push(new_size as usize);
 321             }
 322             let stride = chr.get_linesize(width);
 323             let cur_h = chr.get_height(height);
 324             let cur_sz = stride.checked_mul(cur_h);
 325             if cur_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 326             let new_sz = new_size.checked_add(cur_sz.unwrap());
 327             if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 328             new_size = new_sz.unwrap();
 329             if vinfo.is_flipped() {
 330                 offs.push(new_size as usize);
 331             }
 332             strides.push(stride);
 333         }
 334         if max_depth <= 8 {
 335             let mut data: Vec<u8> = Vec::with_capacity(new_size);
 336             data.resize(new_size, 0);
 337             let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: Rc::new(RefCell::new(data)), info: vinfo, offs: offs, strides: strides };
 338             Ok(NABufferType::Video(buf))
 339         } else if max_depth <= 16 {
 340             let mut data: Vec<u16> = Vec::with_capacity(new_size);
 341             data.resize(new_size, 0);
 342             let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: Rc::new(RefCell::new(data)), info: vinfo, offs: offs, strides: strides };
 343             Ok(NABufferType::Video16(buf))
 344         } else {
 345             let mut data: Vec<u32> = Vec::with_capacity(new_size);
 346             data.resize(new_size, 0);
 347             let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: Rc::new(RefCell::new(data)), info: vinfo, offs: offs, strides: strides };
 348             Ok(NABufferType::Video32(buf))
 349         }
 350     } else if all_bytealigned || unfit_elem_size {
 351         let elem_sz = fmt.get_elem_size();
 352         let line_sz = width.checked_mul(elem_sz as usize);
 353         if line_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 354         let new_sz = line_sz.unwrap().checked_mul(height);
 355         if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 356         new_size = new_sz.unwrap();
 357         let mut data: Vec<u8> = Vec::with_capacity(new_size);
 358         data.resize(new_size, 0);
 359         strides.push(line_sz.unwrap());
 360         let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: Rc::new(RefCell::new(data)), info: vinfo, offs: offs, strides: strides };
 361         Ok(NABufferType::VideoPacked(buf))
 362     } else {
 363         let elem_sz = fmt.get_elem_size();
 364         let new_sz = width.checked_mul(height);
 365         if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 366         new_size = new_sz.unwrap();
 367         match elem_sz {
 368             2 => {
 369                     let mut data: Vec<u16> = Vec::with_capacity(new_size);
 370                     data.resize(new_size, 0);
 371                     strides.push(width);
 372                     let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: Rc::new(RefCell::new(data)), info: vinfo, offs: offs, strides: strides };
 373                     Ok(NABufferType::Video16(buf))
 374                 },
 375             4 => {
 376                     let mut data: Vec<u32> = Vec::with_capacity(new_size);
 377                     data.resize(new_size, 0);
 378                     strides.push(width);
 379                     let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: Rc::new(RefCell::new(data)), info: vinfo, offs: offs, strides: strides };
 380                     Ok(NABufferType::Video32(buf))
 381                 },
 382             _ => unreachable!(),
 383         }
 384     }
 385 }
 386
 387 pub fn alloc_audio_buffer(ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelMap) -> Result<NABufferType, AllocatorError> {
 388     let mut offs: Vec<usize> = Vec::new();
 389     if ainfo.format.is_planar() || (ainfo.channels == 1 && (ainfo.format.get_bits() % 8) == 0) {
 390         let len = nsamples.checked_mul(ainfo.channels as usize);
 391         if len == None { return Err(AllocatorError::TooLargeDimensions); }
 392         let length = len.unwrap();
 393         for i in 0..ainfo.channels {
 394             offs.push((i as usize) * nsamples);
 395         }
 396         if ainfo.format.is_float() {
 397             if ainfo.format.get_bits() == 32 {
 398                 let mut data: Vec<f32> = Vec::with_capacity(length);
 399                 data.resize(length, 0.0);
 400                 let buf: NAAudioBuffer<f32> = NAAudioBuffer { data: Rc::new(RefCell::new(data)), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
 401                 Ok(NABufferType::AudioF32(buf))
 402             } else {
 403                 Err(AllocatorError::TooLargeDimensions)
 404             }
 405         } else {
 406             if ainfo.format.get_bits() == 8 && !ainfo.format.is_signed() {
 407                 let mut data: Vec<u8> = Vec::with_capacity(length);
 408                 data.resize(length, 0);
 409                 let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: Rc::new(RefCell::new(data)), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
 410                 Ok(NABufferType::AudioU8(buf))
 411             } else if ainfo.format.get_bits() == 16 && ainfo.format.is_signed() {
 412                 let mut data: Vec<i16> = Vec::with_capacity(length);
 413                 data.resize(length, 0);
 414                 let buf: NAAudioBuffer<i16> = NAAudioBuffer { data: Rc::new(RefCell::new(data)), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
 415                 Ok(NABufferType::AudioI16(buf))
 416             } else {
 417                 Err(AllocatorError::TooLargeDimensions)
 418             }
 419         }
 420     } else {
 421         let len = nsamples.checked_mul(ainfo.channels as usize);
 422         if len == None { return Err(AllocatorError::TooLargeDimensions); }
 423         let length = ainfo.format.get_audio_size(len.unwrap() as u64);
 424         let mut data: Vec<u8> = Vec::with_capacity(length);
 425         data.resize(length, 0);
 426         let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: Rc::new(RefCell::new(data)), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
 427         Ok(NABufferType::AudioPacked(buf))
 428     }
 429 }
 430
 431 pub fn alloc_data_buffer(size: usize) -> Result<NABufferType, AllocatorError> {
 432     let mut data: Vec<u8> = Vec::with_capacity(size);
 433     data.resize(size, 0);
 434     let buf: NABufferRefT<u8> = Rc::new(RefCell::new(data));
 435     Ok(NABufferType::Data(buf))
 436 }
 437
 438 pub fn copy_buffer(buf: NABufferType) -> NABufferType {
 439     buf.clone()
 440 }
 441
 442 #[allow(dead_code)]
 443 #[derive(Clone)]
 444 pub struct NACodecInfo {
 445     name:       &'static str,
 446     properties: NACodecTypeInfo,
 447     extradata:  Option<Rc<Vec<u8>>>,
 448 }
 449
 450 impl NACodecInfo {
 451     pub fn new(name: &'static str, p: NACodecTypeInfo, edata: Option<Vec<u8>>) -> Self {
 452         let extradata = match edata {
 453             None => None,
 454             Some(vec) => Some(Rc::new(vec)),
 455         };
 456         NACodecInfo { name: name, properties: p, extradata: extradata }
 457     }
 458     pub fn new_ref(name: &'static str, p: NACodecTypeInfo, edata: Option<Rc<Vec<u8>>>) -> Self {
 459         NACodecInfo { name: name, properties: p, extradata: edata }
 460     }
 461     pub fn get_properties(&self) -> NACodecTypeInfo { self.properties }
 462     pub fn get_extradata(&self) -> Option<Rc<Vec<u8>>> {
 463         if let Some(ref vec) = self.extradata { return Some(vec.clone()); }
 464         None
 465     }
 466     pub fn get_name(&self) -> &'static str { self.name }
 467     pub fn is_video(&self) -> bool {
 468         if let NACodecTypeInfo::Video(_) = self.properties { return true; }
 469         false
 470     }
 471     pub fn is_audio(&self) -> bool {
 472         if let NACodecTypeInfo::Audio(_) = self.properties { return true; }
 473         false
 474     }
 475     pub fn new_dummy() -> Rc<Self> {
 476         Rc::new(DUMMY_CODEC_INFO)
 477     }
 478     pub fn replace_info(&self, p: NACodecTypeInfo) -> Rc<Self> {
 479         Rc::new(NACodecInfo { name: self.name, properties: p, extradata: self.extradata.clone() })
 480     }
 481 }
 482
 483 impl Default for NACodecInfo {
 484     fn default() -> Self { DUMMY_CODEC_INFO }
 485 }
 486
 487 impl fmt::Display for NACodecInfo {
 488     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 489         let edata = match self.extradata.clone() {
 490             None => format!("no extradata"),
 491             Some(v) => format!("{} byte(s) of extradata", v.len()),
 492         };
 493         write!(f, "{}: {} {}", self.name, self.properties, edata)
 494     }
 495 }
 496
 497 pub const DUMMY_CODEC_INFO: NACodecInfo = NACodecInfo {
 498                                 name: "none",
 499                                 properties: NACodecTypeInfo::None,
 500                                 extradata: None };
 501
 502 #[derive(Debug,Clone)]
 503 pub enum NAValue {
 504     None,
 505     Int(i32),
 506     Long(i64),
 507     String(String),
 508     Data(Rc<Vec<u8>>),
 509 }
 510
 511 #[derive(Debug,Clone,Copy,PartialEq)]
 512 #[allow(dead_code)]
 513 pub enum FrameType {
 514     I,
 515     P,
 516     B,
 517     Skip,
 518     Other,
 519 }
 520
 521 impl fmt::Display for FrameType {
 522     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 523         match *self {
 524             FrameType::I => write!(f, "I"),
 525             FrameType::P => write!(f, "P"),
 526             FrameType::B => write!(f, "B"),
 527             FrameType::Skip => write!(f, "skip"),
 528             FrameType::Other => write!(f, "x"),
 529         }
 530     }
 531 }
 532
 533 #[derive(Debug,Clone,Copy)]
 534 pub struct NATimeInfo {
 535     pts:            Option<u64>,
 536     dts:            Option<u64>,
 537     duration:       Option<u64>,
 538     tb_num:         u32,
 539     tb_den:         u32,
 540 }
 541
 542 impl NATimeInfo {
 543     pub fn new(pts: Option<u64>, dts: Option<u64>, duration: Option<u64>, tb_num: u32, tb_den: u32) -> Self {
 544         NATimeInfo { pts: pts, dts: dts, duration: duration, tb_num: tb_num, tb_den: tb_den }
 545     }
 546     pub fn get_pts(&self) -> Option<u64> { self.pts }
 547     pub fn get_dts(&self) -> Option<u64> { self.dts }
 548     pub fn get_duration(&self) -> Option<u64> { self.duration }
 549     pub fn set_pts(&mut self, pts: Option<u64>) { self.pts = pts; }
 550     pub fn set_dts(&mut self, dts: Option<u64>) { self.dts = dts; }
 551     pub fn set_duration(&mut self, dur: Option<u64>) { self.duration = dur; }
 552 }
 553
 554 #[allow(dead_code)]
 555 #[derive(Clone)]
 556 pub struct NAFrame {
 557     ts:             NATimeInfo,
 558     buffer:         NABufferType,
 559     info:           Rc<NACodecInfo>,
 560     ftype:          FrameType,
 561     key:            bool,
 562     options:        HashMap<String, NAValue>,
 563 }
 564
 565 pub type NAFrameRef = Rc<RefCell<NAFrame>>;
 566
 567 fn get_plane_size(info: &NAVideoInfo, idx: usize) -> (usize, usize) {
 568     let chromaton = info.get_format().get_chromaton(idx);
 569     if let None = chromaton { return (0, 0); }
 570     let (hs, vs) = chromaton.unwrap().get_subsampling();
 571     let w = (info.get_width()  + ((1 << hs) - 1)) >> hs;
 572     let h = (info.get_height() + ((1 << vs) - 1)) >> vs;
 573     (w, h)
 574 }
 575
 576 impl NAFrame {
 577     pub fn new(ts:             NATimeInfo,
 578                ftype:          FrameType,
 579                keyframe:       bool,
 580                info:           Rc<NACodecInfo>,
 581                options:        HashMap<String, NAValue>,
 582                buffer:         NABufferType) -> Self {
 583         NAFrame { ts: ts, buffer: buffer, info: info, ftype: ftype, key: keyframe, options: options }
 584     }
 585     pub fn get_info(&self) -> Rc<NACodecInfo> { self.info.clone() }
 586     pub fn get_frame_type(&self) -> FrameType { self.ftype }
 587     pub fn is_keyframe(&self) -> bool { self.key }
 588     pub fn set_frame_type(&mut self, ftype: FrameType) { self.ftype = ftype; }
 589     pub fn set_keyframe(&mut self, key: bool) { self.key = key; }
 590     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
 591     pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
 592     pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
 593     pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
 594     pub fn set_pts(&mut self, pts: Option<u64>) { self.ts.set_pts(pts); }
 595     pub fn set_dts(&mut self, dts: Option<u64>) { self.ts.set_dts(dts); }
 596     pub fn set_duration(&mut self, dur: Option<u64>) { self.ts.set_duration(dur); }
 597
 598     pub fn get_buffer(&self) -> NABufferType { self.buffer.clone() }
 599 }
 600
 601 impl fmt::Display for NAFrame {
 602     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 603         let mut foo = format!("frame type {}", self.ftype);
 604         if let Some(pts) = self.ts.pts { foo = format!("{} pts {}", foo, pts); }
 605         if let Some(dts) = self.ts.dts { foo = format!("{} dts {}", foo, dts); }
 606         if let Some(dur) = self.ts.duration { foo = format!("{} duration {}", foo, dur); }
 607         if self.key { foo = format!("{} kf", foo); }
 608         write!(f, "[{}]", foo)
 609     }
 610 }
 611
 612 /// Possible stream types.
 613 #[derive(Debug,Clone,Copy)]
 614 #[allow(dead_code)]
 615 pub enum StreamType {
 616     /// video stream
 617     Video,
 618     /// audio stream
 619     Audio,
 620     /// subtitles
 621     Subtitles,
 622     /// any data stream (or might be an unrecognized audio/video stream)
 623     Data,
 624     /// nonexistent stream
 625     None,
 626 }
 627
 628 impl fmt::Display for StreamType {
 629     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 630         match *self {
 631             StreamType::Video => write!(f, "Video"),
 632             StreamType::Audio => write!(f, "Audio"),
 633             StreamType::Subtitles => write!(f, "Subtitles"),
 634             StreamType::Data => write!(f, "Data"),
 635             StreamType::None => write!(f, "-"),
 636         }
 637     }
 638 }
 639
 640 #[allow(dead_code)]
 641 #[derive(Clone)]
 642 pub struct NAStream {
 643     media_type:     StreamType,
 644     id:             u32,
 645     num:            usize,
 646     info:           Rc<NACodecInfo>,
 647     tb_num:         u32,
 648     tb_den:         u32,
 649 }
 650
 651 pub fn reduce_timebase(tb_num: u32, tb_den: u32) -> (u32, u32) {
 652     if tb_num == 0 { return (tb_num, tb_den); }
 653     if (tb_den % tb_num) == 0 { return (1, tb_den / tb_num); }
 654
 655     let mut a = tb_num;
 656     let mut b = tb_den;
 657
 658     while a != b {
 659         if a > b { a -= b; }
 660         else if b > a { b -= a; }
 661     }
 662
 663     (tb_num / a, tb_den / a)
 664 }
 665
 666 impl NAStream {
 667     pub fn new(mt: StreamType, id: u32, info: NACodecInfo, tb_num: u32, tb_den: u32) -> Self {
 668         let (n, d) = reduce_timebase(tb_num, tb_den);
 669         NAStream { media_type: mt, id: id, num: 0, info: Rc::new(info), tb_num: n, tb_den: d }
 670     }
 671     pub fn get_id(&self) -> u32 { self.id }
 672     pub fn get_num(&self) -> usize { self.num }
 673     pub fn set_num(&mut self, num: usize) { self.num = num; }
 674     pub fn get_info(&self) -> Rc<NACodecInfo> { self.info.clone() }
 675     pub fn get_timebase(&self) -> (u32, u32) { (self.tb_num, self.tb_den) }
 676     pub fn set_timebase(&mut self, tb_num: u32, tb_den: u32) {
 677         let (n, d) = reduce_timebase(tb_num, tb_den);
 678         self.tb_num = n;
 679         self.tb_den = d;
 680     }
 681 }
 682
 683 impl fmt::Display for NAStream {
 684     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 685         write!(f, "({}#{} @ {}/{} - {})", self.media_type, self.id, self.tb_num, self.tb_den, self.info.get_properties())
 686     }
 687 }
 688
 689 #[allow(dead_code)]
 690 pub struct NAPacket {
 691     stream:         Rc<NAStream>,
 692     ts:             NATimeInfo,
 693     buffer:         Rc<Vec<u8>>,
 694     keyframe:       bool,
 695 //    options:        HashMap<String, NAValue<'a>>,
 696 }
 697
 698 impl NAPacket {
 699     pub fn new(str: Rc<NAStream>, ts: NATimeInfo, kf: bool, vec: Vec<u8>) -> Self {
 700 //        let mut vec: Vec<u8> = Vec::new();
 701 //        vec.resize(size, 0);
 702         NAPacket { stream: str, ts: ts, keyframe: kf, buffer: Rc::new(vec) }
 703     }
 704     pub fn get_stream(&self) -> Rc<NAStream> { self.stream.clone() }
 705     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
 706     pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
 707     pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
 708     pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
 709     pub fn is_keyframe(&self) -> bool { self.keyframe }
 710     pub fn get_buffer(&self) -> Rc<Vec<u8>> { self.buffer.clone() }
 711 }
 712
 713 impl Drop for NAPacket {
 714     fn drop(&mut self) {}
 715 }
 716
 717 impl fmt::Display for NAPacket {
 718     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 719         let mut foo = format!("[pkt for {} size {}", self.stream, self.buffer.len());
 720         if let Some(pts) = self.ts.pts { foo = format!("{} pts {}", foo, pts); }
 721         if let Some(dts) = self.ts.dts { foo = format!("{} dts {}", foo, dts); }
 722         if let Some(dur) = self.ts.duration { foo = format!("{} duration {}", foo, dur); }
 723         if self.keyframe { foo = format!("{} kf", foo); }
 724         foo = foo + "]";
 725         write!(f, "{}", foo)
 726     }
 727 }
 728
 729 pub trait FrameFromPacket {
 730     fn new_from_pkt(pkt: &NAPacket, info: Rc<NACodecInfo>, buf: NABufferType) -> NAFrame;
 731     fn fill_timestamps(&mut self, pkt: &NAPacket);
 732 }
 733
 734 impl FrameFromPacket for NAFrame {
 735     fn new_from_pkt(pkt: &NAPacket, info: Rc<NACodecInfo>, buf: NABufferType) -> NAFrame {
 736         NAFrame::new(pkt.ts, FrameType::Other, pkt.keyframe, info, HashMap::new(), buf)
 737     }
 738     fn fill_timestamps(&mut self, pkt: &NAPacket) {
 739         self.ts = pkt.get_time_information();
 740     }
 741 }
 742