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 pub use crate::refs::*;
   8
   9 #[allow(dead_code)]
  10 #[derive(Clone,Copy,PartialEq)]
  11 pub struct NAAudioInfo {
  12     sample_rate: u32,
  13     channels:    u8,
  14     format:      NASoniton,
  15     block_len:   usize,
  16 }
  17
  18 impl NAAudioInfo {
  19     pub fn new(sr: u32, ch: u8, fmt: NASoniton, bl: usize) -> Self {
  20         NAAudioInfo { sample_rate: sr, channels: ch, format: fmt, block_len: bl }
  21     }
  22     pub fn get_sample_rate(&self) -> u32 { self.sample_rate }
  23     pub fn get_channels(&self) -> u8 { self.channels }
  24     pub fn get_format(&self) -> NASoniton { self.format }
  25     pub fn get_block_len(&self) -> usize { self.block_len }
  26 }
  27
  28 impl fmt::Display for NAAudioInfo {
  29     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
  30         write!(f, "{} Hz, {} ch", self.sample_rate, self.channels)
  31     }
  32 }
  33
  34 #[allow(dead_code)]
  35 #[derive(Clone,Copy,PartialEq)]
  36 pub struct NAVideoInfo {
  37     width:      usize,
  38     height:     usize,
  39     flipped:    bool,
  40     format:     NAPixelFormaton,
  41 }
  42
  43 impl NAVideoInfo {
  44     pub fn new(w: usize, h: usize, flip: bool, fmt: NAPixelFormaton) -> Self {
  45         NAVideoInfo { width: w, height: h, flipped: flip, format: fmt }
  46     }
  47     pub fn get_width(&self)  -> usize { self.width as usize }
  48     pub fn get_height(&self) -> usize { self.height as usize }
  49     pub fn is_flipped(&self) -> bool { self.flipped }
  50     pub fn get_format(&self) -> NAPixelFormaton { self.format }
  51     pub fn set_width(&mut self, w: usize)  { self.width  = w; }
  52     pub fn set_height(&mut self, h: usize) { self.height = h; }
  53 }
  54
  55 impl fmt::Display for NAVideoInfo {
  56     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
  57         write!(f, "{}x{}", self.width, self.height)
  58     }
  59 }
  60
  61 #[derive(Clone,Copy,PartialEq)]
  62 pub enum NACodecTypeInfo {
  63     None,
  64     Audio(NAAudioInfo),
  65     Video(NAVideoInfo),
  66 }
  67
  68 impl NACodecTypeInfo {
  69     pub fn get_video_info(&self) -> Option<NAVideoInfo> {
  70         match *self {
  71             NACodecTypeInfo::Video(vinfo) => Some(vinfo),
  72             _ => None,
  73         }
  74     }
  75     pub fn get_audio_info(&self) -> Option<NAAudioInfo> {
  76         match *self {
  77             NACodecTypeInfo::Audio(ainfo) => Some(ainfo),
  78             _ => None,
  79         }
  80     }
  81     pub fn is_video(&self) -> bool {
  82         match *self {
  83             NACodecTypeInfo::Video(_) => true,
  84             _ => false,
  85         }
  86     }
  87     pub fn is_audio(&self) -> bool {
  88         match *self {
  89             NACodecTypeInfo::Audio(_) => true,
  90             _ => false,
  91         }
  92     }
  93 }
  94
  95 impl fmt::Display for NACodecTypeInfo {
  96     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
  97         let ret = match *self {
  98             NACodecTypeInfo::None       => format!(""),
  99             NACodecTypeInfo::Audio(fmt) => format!("{}", fmt),
 100             NACodecTypeInfo::Video(fmt) => format!("{}", fmt),
 101         };
 102         write!(f, "{}", ret)
 103     }
 104 }
 105
 106 #[derive(Clone)]
 107 pub struct NAVideoBuffer<T> {
 108     info:    NAVideoInfo,
 109     data:    NABufferRef<Vec<T>>,
 110     offs:    Vec<usize>,
 111     strides: Vec<usize>,
 112 }
 113
 114 impl<T: Clone> NAVideoBuffer<T> {
 115     pub fn get_offset(&self, idx: usize) -> usize {
 116         if idx >= self.offs.len() { 0 }
 117         else { self.offs[idx] }
 118     }
 119     pub fn get_info(&self) -> NAVideoInfo { self.info }
 120     pub fn get_data(&self) -> &Vec<T> { self.data.as_ref() }
 121     pub fn get_data_mut(&mut self) -> Option<&mut Vec<T>> { self.data.as_mut() }
 122     pub fn copy_buffer(&mut self) -> Self {
 123         let mut data: Vec<T> = Vec::with_capacity(self.data.len());
 124         data.clone_from(self.data.as_ref());
 125         let mut offs: Vec<usize> = Vec::with_capacity(self.offs.len());
 126         offs.clone_from(&self.offs);
 127         let mut strides: Vec<usize> = Vec::with_capacity(self.strides.len());
 128         strides.clone_from(&self.strides);
 129         NAVideoBuffer { info: self.info, data: NABufferRef::new(data), offs: offs, strides: strides }
 130     }
 131     pub fn get_stride(&self, idx: usize) -> usize {
 132         if idx >= self.strides.len() { return 0; }
 133         self.strides[idx]
 134     }
 135     pub fn get_dimensions(&self, idx: usize) -> (usize, usize) {
 136         get_plane_size(&self.info, idx)
 137     }
 138 }
 139
 140 #[derive(Clone)]
 141 pub struct NAAudioBuffer<T> {
 142     info:   NAAudioInfo,
 143     data:   NABufferRef<Vec<T>>,
 144     offs:   Vec<usize>,
 145     chmap:  NAChannelMap,
 146     len:    usize,
 147 }
 148
 149 impl<T: Clone> NAAudioBuffer<T> {
 150     pub fn get_offset(&self, idx: usize) -> usize {
 151         if idx >= self.offs.len() { 0 }
 152         else { self.offs[idx] }
 153     }
 154     pub fn get_info(&self) -> NAAudioInfo { self.info }
 155     pub fn get_chmap(&self) -> NAChannelMap { self.chmap.clone() }
 156     pub fn get_data(&self) -> &Vec<T> { self.data.as_ref() }
 157     pub fn get_data_mut(&mut self) -> Option<&mut Vec<T>> { self.data.as_mut() }
 158     pub fn copy_buffer(&mut self) -> Self {
 159         let mut data: Vec<T> = Vec::with_capacity(self.data.len());
 160         data.clone_from(self.data.as_ref());
 161         let mut offs: Vec<usize> = Vec::with_capacity(self.offs.len());
 162         offs.clone_from(&self.offs);
 163         NAAudioBuffer { info: self.info, data: NABufferRef::new(data), offs: offs, chmap: self.get_chmap(), len: self.len }
 164     }
 165     pub fn get_length(&self) -> usize { self.len }
 166 }
 167
 168 impl NAAudioBuffer<u8> {
 169     pub fn new_from_buf(info: NAAudioInfo, data: NABufferRef<Vec<u8>>, chmap: NAChannelMap) -> Self {
 170         let len = data.len();
 171         NAAudioBuffer { info: info, data: data, chmap: chmap, offs: Vec::new(), len: len }
 172     }
 173 }
 174
 175 #[derive(Clone)]
 176 pub enum NABufferType {
 177     Video      (NAVideoBuffer<u8>),
 178     Video16    (NAVideoBuffer<u16>),
 179     Video32    (NAVideoBuffer<u32>),
 180     VideoPacked(NAVideoBuffer<u8>),
 181     AudioU8    (NAAudioBuffer<u8>),
 182     AudioI16   (NAAudioBuffer<i16>),
 183     AudioI32   (NAAudioBuffer<i32>),
 184     AudioF32   (NAAudioBuffer<f32>),
 185     AudioPacked(NAAudioBuffer<u8>),
 186     Data       (NABufferRef<Vec<u8>>),
 187     None,
 188 }
 189
 190 impl NABufferType {
 191     pub fn get_offset(&self, idx: usize) -> usize {
 192         match *self {
 193             NABufferType::Video(ref vb)       => vb.get_offset(idx),
 194             NABufferType::Video16(ref vb)     => vb.get_offset(idx),
 195             NABufferType::Video32(ref vb)     => vb.get_offset(idx),
 196             NABufferType::VideoPacked(ref vb) => vb.get_offset(idx),
 197             NABufferType::AudioU8(ref ab)     => ab.get_offset(idx),
 198             NABufferType::AudioI16(ref ab)    => ab.get_offset(idx),
 199             NABufferType::AudioF32(ref ab)    => ab.get_offset(idx),
 200             NABufferType::AudioPacked(ref ab) => ab.get_offset(idx),
 201             _ => 0,
 202         }
 203     }
 204     pub fn get_video_info(&self) -> Option<NAVideoInfo> {
 205         match *self {
 206             NABufferType::Video(ref vb)       => Some(vb.get_info()),
 207             NABufferType::Video16(ref vb)     => Some(vb.get_info()),
 208             NABufferType::Video32(ref vb)     => Some(vb.get_info()),
 209             NABufferType::VideoPacked(ref vb) => Some(vb.get_info()),
 210             _ => None,
 211         }
 212     }
 213     pub fn get_vbuf(&self) -> Option<NAVideoBuffer<u8>> {
 214         match *self {
 215             NABufferType::Video(ref vb)       => Some(vb.clone()),
 216             NABufferType::VideoPacked(ref vb) => Some(vb.clone()),
 217             _ => None,
 218         }
 219     }
 220     pub fn get_vbuf16(&self) -> Option<NAVideoBuffer<u16>> {
 221         match *self {
 222             NABufferType::Video16(ref vb)     => Some(vb.clone()),
 223             _ => None,
 224         }
 225     }
 226     pub fn get_vbuf32(&self) -> Option<NAVideoBuffer<u32>> {
 227         match *self {
 228             NABufferType::Video32(ref vb)     => Some(vb.clone()),
 229             _ => None,
 230         }
 231     }
 232     pub fn get_abuf_u8(&self) -> Option<NAAudioBuffer<u8>> {
 233         match *self {
 234             NABufferType::AudioU8(ref ab) => Some(ab.clone()),
 235             NABufferType::AudioPacked(ref ab) => Some(ab.clone()),
 236             _ => None,
 237         }
 238     }
 239     pub fn get_abuf_i16(&self) -> Option<NAAudioBuffer<i16>> {
 240         match *self {
 241             NABufferType::AudioI16(ref ab) => Some(ab.clone()),
 242             _ => None,
 243         }
 244     }
 245     pub fn get_abuf_i32(&self) -> Option<NAAudioBuffer<i32>> {
 246         match *self {
 247             NABufferType::AudioI32(ref ab) => Some(ab.clone()),
 248             _ => None,
 249         }
 250     }
 251     pub fn get_abuf_f32(&self) -> Option<NAAudioBuffer<f32>> {
 252         match *self {
 253             NABufferType::AudioF32(ref ab) => Some(ab.clone()),
 254             _ => None,
 255         }
 256     }
 257 }
 258
 259 const NA_SIMPLE_VFRAME_COMPONENTS: usize = 4;
 260 pub struct NASimpleVideoFrame<'a, T: Copy> {
 261     pub width:      [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 262     pub height:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 263     pub flip:       bool,
 264     pub stride:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 265     pub offset:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 266     pub components: usize,
 267     pub data:       &'a mut Vec<T>,
 268 }
 269
 270 impl<'a, T:Copy> NASimpleVideoFrame<'a, T> {
 271     pub fn from_video_buf(vbuf: &'a mut NAVideoBuffer<T>) -> Option<Self> {
 272         let vinfo = vbuf.get_info();
 273         let components = vinfo.format.components as usize;
 274         if components > NA_SIMPLE_VFRAME_COMPONENTS {
 275             return None;
 276         }
 277         let mut w: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 278         let mut h: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 279         let mut s: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 280         let mut o: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 281         for comp in 0..components {
 282             let (width, height) = vbuf.get_dimensions(comp);
 283             w[comp] = width;
 284             h[comp] = height;
 285             s[comp] = vbuf.get_stride(comp);
 286             o[comp] = vbuf.get_offset(comp);
 287         }
 288         let flip = vinfo.flipped;
 289         Some(NASimpleVideoFrame {
 290             width:  w,
 291             height: h,
 292             flip,
 293             stride: s,
 294             offset: o,
 295             components,
 296             data: vbuf.data.as_mut().unwrap(),
 297             })
 298     }
 299 }
 300
 301 #[derive(Debug,Clone,Copy,PartialEq)]
 302 pub enum AllocatorError {
 303     TooLargeDimensions,
 304     FormatError,
 305 }
 306
 307 pub fn alloc_video_buffer(vinfo: NAVideoInfo, align: u8) -> Result<NABufferType, AllocatorError> {
 308     let fmt = &vinfo.format;
 309     let mut new_size: usize = 0;
 310     let mut offs:    Vec<usize> = Vec::new();
 311     let mut strides: Vec<usize> = Vec::new();
 312
 313     for i in 0..fmt.get_num_comp() {
 314         if fmt.get_chromaton(i) == None { return Err(AllocatorError::FormatError); }
 315     }
 316
 317     let align_mod = ((1 << align) as usize) - 1;
 318     let width  = ((vinfo.width  as usize) + align_mod) & !align_mod;
 319     let height = ((vinfo.height as usize) + align_mod) & !align_mod;
 320     let mut max_depth = 0;
 321     let mut all_packed = true;
 322     let mut all_bytealigned = true;
 323     for i in 0..fmt.get_num_comp() {
 324         let ochr = fmt.get_chromaton(i);
 325         if let None = ochr { continue; }
 326         let chr = ochr.unwrap();
 327         if !chr.is_packed() {
 328             all_packed = false;
 329         } else if ((chr.get_shift() + chr.get_depth()) & 7) != 0 {
 330             all_bytealigned = false;
 331         }
 332         max_depth = max(max_depth, chr.get_depth());
 333     }
 334     let unfit_elem_size = match fmt.get_elem_size() {
 335             2 | 4 => false,
 336             _ => true,
 337         };
 338
 339 //todo semi-packed like NV12
 340     if fmt.is_paletted() {
 341 //todo various-sized palettes?
 342         let stride = vinfo.get_format().get_chromaton(0).unwrap().get_linesize(width);
 343         let pic_sz = stride.checked_mul(height);
 344         if pic_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 345         let pal_size = 256 * (fmt.get_elem_size() as usize);
 346         let new_size = pic_sz.unwrap().checked_add(pal_size);
 347         if new_size == None { return Err(AllocatorError::TooLargeDimensions); }
 348         offs.push(0);
 349         offs.push(stride * height);
 350         strides.push(stride);
 351         let mut data: Vec<u8> = Vec::with_capacity(new_size.unwrap());
 352         data.resize(new_size.unwrap(), 0);
 353         let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 354         Ok(NABufferType::Video(buf))
 355     } else if !all_packed {
 356         for i in 0..fmt.get_num_comp() {
 357             let ochr = fmt.get_chromaton(i);
 358             if let None = ochr { continue; }
 359             let chr = ochr.unwrap();
 360             if !vinfo.is_flipped() {
 361                 offs.push(new_size as usize);
 362             }
 363             let stride = chr.get_linesize(width);
 364             let cur_h = chr.get_height(height);
 365             let cur_sz = stride.checked_mul(cur_h);
 366             if cur_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 367             let new_sz = new_size.checked_add(cur_sz.unwrap());
 368             if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 369             new_size = new_sz.unwrap();
 370             if vinfo.is_flipped() {
 371                 offs.push(new_size as usize);
 372             }
 373             strides.push(stride);
 374         }
 375         if max_depth <= 8 {
 376             let mut data: Vec<u8> = Vec::with_capacity(new_size);
 377             data.resize(new_size, 0);
 378             let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 379             Ok(NABufferType::Video(buf))
 380         } else if max_depth <= 16 {
 381             let mut data: Vec<u16> = Vec::with_capacity(new_size);
 382             data.resize(new_size, 0);
 383             let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 384             Ok(NABufferType::Video16(buf))
 385         } else {
 386             let mut data: Vec<u32> = Vec::with_capacity(new_size);
 387             data.resize(new_size, 0);
 388             let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 389             Ok(NABufferType::Video32(buf))
 390         }
 391     } else if all_bytealigned || unfit_elem_size {
 392         let elem_sz = fmt.get_elem_size();
 393         let line_sz = width.checked_mul(elem_sz as usize);
 394         if line_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 395         let new_sz = line_sz.unwrap().checked_mul(height);
 396         if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 397         new_size = new_sz.unwrap();
 398         let mut data: Vec<u8> = Vec::with_capacity(new_size);
 399         data.resize(new_size, 0);
 400         strides.push(line_sz.unwrap());
 401         let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 402         Ok(NABufferType::VideoPacked(buf))
 403     } else {
 404         let elem_sz = fmt.get_elem_size();
 405         let new_sz = width.checked_mul(height);
 406         if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 407         new_size = new_sz.unwrap();
 408         match elem_sz {
 409             2 => {
 410                     let mut data: Vec<u16> = Vec::with_capacity(new_size);
 411                     data.resize(new_size, 0);
 412                     strides.push(width);
 413                     let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 414                     Ok(NABufferType::Video16(buf))
 415                 },
 416             4 => {
 417                     let mut data: Vec<u32> = Vec::with_capacity(new_size);
 418                     data.resize(new_size, 0);
 419                     strides.push(width);
 420                     let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 421                     Ok(NABufferType::Video32(buf))
 422                 },
 423             _ => unreachable!(),
 424         }
 425     }
 426 }
 427
 428 pub fn alloc_audio_buffer(ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelMap) -> Result<NABufferType, AllocatorError> {
 429     let mut offs: Vec<usize> = Vec::new();
 430     if ainfo.format.is_planar() || (ainfo.channels == 1 && (ainfo.format.get_bits() % 8) == 0) {
 431         let len = nsamples.checked_mul(ainfo.channels as usize);
 432         if len == None { return Err(AllocatorError::TooLargeDimensions); }
 433         let length = len.unwrap();
 434         for i in 0..ainfo.channels {
 435             offs.push((i as usize) * nsamples);
 436         }
 437         if ainfo.format.is_float() {
 438             if ainfo.format.get_bits() == 32 {
 439                 let mut data: Vec<f32> = Vec::with_capacity(length);
 440                 data.resize(length, 0.0);
 441                 let buf: NAAudioBuffer<f32> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
 442                 Ok(NABufferType::AudioF32(buf))
 443             } else {
 444                 Err(AllocatorError::TooLargeDimensions)
 445             }
 446         } else {
 447             if ainfo.format.get_bits() == 8 && !ainfo.format.is_signed() {
 448                 let mut data: Vec<u8> = Vec::with_capacity(length);
 449                 data.resize(length, 0);
 450                 let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
 451                 Ok(NABufferType::AudioU8(buf))
 452             } else if ainfo.format.get_bits() == 16 && ainfo.format.is_signed() {
 453                 let mut data: Vec<i16> = Vec::with_capacity(length);
 454                 data.resize(length, 0);
 455                 let buf: NAAudioBuffer<i16> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
 456                 Ok(NABufferType::AudioI16(buf))
 457             } else {
 458                 Err(AllocatorError::TooLargeDimensions)
 459             }
 460         }
 461     } else {
 462         let len = nsamples.checked_mul(ainfo.channels as usize);
 463         if len == None { return Err(AllocatorError::TooLargeDimensions); }
 464         let length = ainfo.format.get_audio_size(len.unwrap() as u64);
 465         let mut data: Vec<u8> = Vec::with_capacity(length);
 466         data.resize(length, 0);
 467         let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
 468         Ok(NABufferType::AudioPacked(buf))
 469     }
 470 }
 471
 472 pub fn alloc_data_buffer(size: usize) -> Result<NABufferType, AllocatorError> {
 473     let mut data: Vec<u8> = Vec::with_capacity(size);
 474     data.resize(size, 0);
 475     let buf: NABufferRef<Vec<u8>> = NABufferRef::new(data);
 476     Ok(NABufferType::Data(buf))
 477 }
 478
 479 pub fn copy_buffer(buf: NABufferType) -> NABufferType {
 480     buf.clone()
 481 }
 482
 483 pub struct NABufferPool {
 484     pool:       Vec<NABufferRef<NABufferType>>,
 485     max_len:    usize,
 486 }
 487
 488 impl NABufferPool {
 489     pub fn new(max_len: usize) -> Self {
 490         Self {
 491             pool:       Vec::with_capacity(max_len),
 492             max_len,
 493         }
 494     }
 495     pub fn prealloc_video(&mut self, vinfo: NAVideoInfo, align: u8) -> Result<(), AllocatorError> {
 496         let nbufs = self.max_len - self.pool.len();
 497         for _ in 0..nbufs {
 498             let buf = alloc_video_buffer(vinfo.clone(), align)?;
 499             self.pool.push(NABufferRef::new(buf));
 500         }
 501         Ok(())
 502     }
 503     pub fn prealloc_audio(&mut self, ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelMap) -> Result<(), AllocatorError> {
 504         let nbufs = self.max_len - self.pool.len();
 505         for _ in 0..nbufs {
 506             let buf = alloc_audio_buffer(ainfo.clone(), nsamples, chmap.clone())?;
 507             self.pool.push(NABufferRef::new(buf));
 508         }
 509         Ok(())
 510     }
 511     pub fn add(&mut self, buf: NABufferType) -> bool {
 512         if self.pool.len() < self.max_len {
 513             self.pool.push(NABufferRef::new(buf));
 514             true
 515         } else {
 516             false
 517         }
 518     }
 519     pub fn get_free(&mut self) -> Option<NABufferRef<NABufferType>> {
 520         for e in self.pool.iter() {
 521             if e.get_num_refs() == 1 {
 522                 return Some(e.clone());
 523             }
 524         }
 525         None
 526     }
 527 }
 528
 529 #[allow(dead_code)]
 530 #[derive(Clone)]
 531 pub struct NACodecInfo {
 532     name:       &'static str,
 533     properties: NACodecTypeInfo,
 534     extradata:  Option<Rc<Vec<u8>>>,
 535 }
 536
 537 impl NACodecInfo {
 538     pub fn new(name: &'static str, p: NACodecTypeInfo, edata: Option<Vec<u8>>) -> Self {
 539         let extradata = match edata {
 540             None => None,
 541             Some(vec) => Some(Rc::new(vec)),
 542         };
 543         NACodecInfo { name: name, properties: p, extradata: extradata }
 544     }
 545     pub fn new_ref(name: &'static str, p: NACodecTypeInfo, edata: Option<Rc<Vec<u8>>>) -> Self {
 546         NACodecInfo { name: name, properties: p, extradata: edata }
 547     }
 548     pub fn get_properties(&self) -> NACodecTypeInfo { self.properties }
 549     pub fn get_extradata(&self) -> Option<Rc<Vec<u8>>> {
 550         if let Some(ref vec) = self.extradata { return Some(vec.clone()); }
 551         None
 552     }
 553     pub fn get_name(&self) -> &'static str { self.name }
 554     pub fn is_video(&self) -> bool {
 555         if let NACodecTypeInfo::Video(_) = self.properties { return true; }
 556         false
 557     }
 558     pub fn is_audio(&self) -> bool {
 559         if let NACodecTypeInfo::Audio(_) = self.properties { return true; }
 560         false
 561     }
 562     pub fn new_dummy() -> Rc<Self> {
 563         Rc::new(DUMMY_CODEC_INFO)
 564     }
 565     pub fn replace_info(&self, p: NACodecTypeInfo) -> Rc<Self> {
 566         Rc::new(NACodecInfo { name: self.name, properties: p, extradata: self.extradata.clone() })
 567     }
 568 }
 569
 570 impl Default for NACodecInfo {
 571     fn default() -> Self { DUMMY_CODEC_INFO }
 572 }
 573
 574 impl fmt::Display for NACodecInfo {
 575     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 576         let edata = match self.extradata.clone() {
 577             None => format!("no extradata"),
 578             Some(v) => format!("{} byte(s) of extradata", v.len()),
 579         };
 580         write!(f, "{}: {} {}", self.name, self.properties, edata)
 581     }
 582 }
 583
 584 pub const DUMMY_CODEC_INFO: NACodecInfo = NACodecInfo {
 585                                 name: "none",
 586                                 properties: NACodecTypeInfo::None,
 587                                 extradata: None };
 588
 589 #[derive(Debug,Clone)]
 590 pub enum NAValue {
 591     None,
 592     Int(i32),
 593     Long(i64),
 594     String(String),
 595     Data(Rc<Vec<u8>>),
 596 }
 597
 598 #[derive(Debug,Clone,Copy,PartialEq)]
 599 #[allow(dead_code)]
 600 pub enum FrameType {
 601     I,
 602     P,
 603     B,
 604     Skip,
 605     Other,
 606 }
 607
 608 impl fmt::Display for FrameType {
 609     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 610         match *self {
 611             FrameType::I => write!(f, "I"),
 612             FrameType::P => write!(f, "P"),
 613             FrameType::B => write!(f, "B"),
 614             FrameType::Skip => write!(f, "skip"),
 615             FrameType::Other => write!(f, "x"),
 616         }
 617     }
 618 }
 619
 620 #[derive(Debug,Clone,Copy)]
 621 pub struct NATimeInfo {
 622     pts:            Option<u64>,
 623     dts:            Option<u64>,
 624     duration:       Option<u64>,
 625     tb_num:         u32,
 626     tb_den:         u32,
 627 }
 628
 629 impl NATimeInfo {
 630     pub fn new(pts: Option<u64>, dts: Option<u64>, duration: Option<u64>, tb_num: u32, tb_den: u32) -> Self {
 631         NATimeInfo { pts: pts, dts: dts, duration: duration, tb_num: tb_num, tb_den: tb_den }
 632     }
 633     pub fn get_pts(&self) -> Option<u64> { self.pts }
 634     pub fn get_dts(&self) -> Option<u64> { self.dts }
 635     pub fn get_duration(&self) -> Option<u64> { self.duration }
 636     pub fn set_pts(&mut self, pts: Option<u64>) { self.pts = pts; }
 637     pub fn set_dts(&mut self, dts: Option<u64>) { self.dts = dts; }
 638     pub fn set_duration(&mut self, dur: Option<u64>) { self.duration = dur; }
 639 }
 640
 641 #[allow(dead_code)]
 642 #[derive(Clone)]
 643 pub struct NAFrame {
 644     ts:             NATimeInfo,
 645     buffer:         NABufferType,
 646     info:           Rc<NACodecInfo>,
 647     ftype:          FrameType,
 648     key:            bool,
 649     options:        HashMap<String, NAValue>,
 650 }
 651
 652 pub type NAFrameRef = Rc<RefCell<NAFrame>>;
 653
 654 fn get_plane_size(info: &NAVideoInfo, idx: usize) -> (usize, usize) {
 655     let chromaton = info.get_format().get_chromaton(idx);
 656     if let None = chromaton { return (0, 0); }
 657     let (hs, vs) = chromaton.unwrap().get_subsampling();
 658     let w = (info.get_width()  + ((1 << hs) - 1)) >> hs;
 659     let h = (info.get_height() + ((1 << vs) - 1)) >> vs;
 660     (w, h)
 661 }
 662
 663 impl NAFrame {
 664     pub fn new(ts:             NATimeInfo,
 665                ftype:          FrameType,
 666                keyframe:       bool,
 667                info:           Rc<NACodecInfo>,
 668                options:        HashMap<String, NAValue>,
 669                buffer:         NABufferType) -> Self {
 670         NAFrame { ts: ts, buffer: buffer, info: info, ftype: ftype, key: keyframe, options: options }
 671     }
 672     pub fn get_info(&self) -> Rc<NACodecInfo> { self.info.clone() }
 673     pub fn get_frame_type(&self) -> FrameType { self.ftype }
 674     pub fn is_keyframe(&self) -> bool { self.key }
 675     pub fn set_frame_type(&mut self, ftype: FrameType) { self.ftype = ftype; }
 676     pub fn set_keyframe(&mut self, key: bool) { self.key = key; }
 677     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
 678     pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
 679     pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
 680     pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
 681     pub fn set_pts(&mut self, pts: Option<u64>) { self.ts.set_pts(pts); }
 682     pub fn set_dts(&mut self, dts: Option<u64>) { self.ts.set_dts(dts); }
 683     pub fn set_duration(&mut self, dur: Option<u64>) { self.ts.set_duration(dur); }
 684
 685     pub fn get_buffer(&self) -> NABufferType { self.buffer.clone() }
 686 }
 687
 688 impl fmt::Display for NAFrame {
 689     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 690         let mut foo = format!("frame type {}", self.ftype);
 691         if let Some(pts) = self.ts.pts { foo = format!("{} pts {}", foo, pts); }
 692         if let Some(dts) = self.ts.dts { foo = format!("{} dts {}", foo, dts); }
 693         if let Some(dur) = self.ts.duration { foo = format!("{} duration {}", foo, dur); }
 694         if self.key { foo = format!("{} kf", foo); }
 695         write!(f, "[{}]", foo)
 696     }
 697 }
 698
 699 /// Possible stream types.
 700 #[derive(Debug,Clone,Copy)]
 701 #[allow(dead_code)]
 702 pub enum StreamType {
 703     /// video stream
 704     Video,
 705     /// audio stream
 706     Audio,
 707     /// subtitles
 708     Subtitles,
 709     /// any data stream (or might be an unrecognized audio/video stream)
 710     Data,
 711     /// nonexistent stream
 712     None,
 713 }
 714
 715 impl fmt::Display for StreamType {
 716     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 717         match *self {
 718             StreamType::Video => write!(f, "Video"),
 719             StreamType::Audio => write!(f, "Audio"),
 720             StreamType::Subtitles => write!(f, "Subtitles"),
 721             StreamType::Data => write!(f, "Data"),
 722             StreamType::None => write!(f, "-"),
 723         }
 724     }
 725 }
 726
 727 #[allow(dead_code)]
 728 #[derive(Clone)]
 729 pub struct NAStream {
 730     media_type:     StreamType,
 731     id:             u32,
 732     num:            usize,
 733     info:           Rc<NACodecInfo>,
 734     tb_num:         u32,
 735     tb_den:         u32,
 736 }
 737
 738 pub fn reduce_timebase(tb_num: u32, tb_den: u32) -> (u32, u32) {
 739     if tb_num == 0 { return (tb_num, tb_den); }
 740     if (tb_den % tb_num) == 0 { return (1, tb_den / tb_num); }
 741
 742     let mut a = tb_num;
 743     let mut b = tb_den;
 744
 745     while a != b {
 746         if a > b { a -= b; }
 747         else if b > a { b -= a; }
 748     }
 749
 750     (tb_num / a, tb_den / a)
 751 }
 752
 753 impl NAStream {
 754     pub fn new(mt: StreamType, id: u32, info: NACodecInfo, tb_num: u32, tb_den: u32) -> Self {
 755         let (n, d) = reduce_timebase(tb_num, tb_den);
 756         NAStream { media_type: mt, id: id, num: 0, info: Rc::new(info), tb_num: n, tb_den: d }
 757     }
 758     pub fn get_id(&self) -> u32 { self.id }
 759     pub fn get_num(&self) -> usize { self.num }
 760     pub fn set_num(&mut self, num: usize) { self.num = num; }
 761     pub fn get_info(&self) -> Rc<NACodecInfo> { self.info.clone() }
 762     pub fn get_timebase(&self) -> (u32, u32) { (self.tb_num, self.tb_den) }
 763     pub fn set_timebase(&mut self, tb_num: u32, tb_den: u32) {
 764         let (n, d) = reduce_timebase(tb_num, tb_den);
 765         self.tb_num = n;
 766         self.tb_den = d;
 767     }
 768 }
 769
 770 impl fmt::Display for NAStream {
 771     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 772         write!(f, "({}#{} @ {}/{} - {})", self.media_type, self.id, self.tb_num, self.tb_den, self.info.get_properties())
 773     }
 774 }
 775
 776 #[allow(dead_code)]
 777 pub struct NAPacket {
 778     stream:         Rc<NAStream>,
 779     ts:             NATimeInfo,
 780     buffer:         NABufferRef<Vec<u8>>,
 781     keyframe:       bool,
 782 //    options:        HashMap<String, NAValue<'a>>,
 783 }
 784
 785 impl NAPacket {
 786     pub fn new(str: Rc<NAStream>, ts: NATimeInfo, kf: bool, vec: Vec<u8>) -> Self {
 787 //        let mut vec: Vec<u8> = Vec::new();
 788 //        vec.resize(size, 0);
 789         NAPacket { stream: str, ts: ts, keyframe: kf, buffer: NABufferRef::new(vec) }
 790     }
 791     pub fn get_stream(&self) -> Rc<NAStream> { self.stream.clone() }
 792     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
 793     pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
 794     pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
 795     pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
 796     pub fn is_keyframe(&self) -> bool { self.keyframe }
 797     pub fn get_buffer(&self) -> NABufferRef<Vec<u8>> { self.buffer.clone() }
 798 }
 799
 800 impl Drop for NAPacket {
 801     fn drop(&mut self) {}
 802 }
 803
 804 impl fmt::Display for NAPacket {
 805     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 806         let mut foo = format!("[pkt for {} size {}", self.stream, self.buffer.len());
 807         if let Some(pts) = self.ts.pts { foo = format!("{} pts {}", foo, pts); }
 808         if let Some(dts) = self.ts.dts { foo = format!("{} dts {}", foo, dts); }
 809         if let Some(dur) = self.ts.duration { foo = format!("{} duration {}", foo, dur); }
 810         if self.keyframe { foo = format!("{} kf", foo); }
 811         foo = foo + "]";
 812         write!(f, "{}", foo)
 813     }
 814 }
 815
 816 pub trait FrameFromPacket {
 817     fn new_from_pkt(pkt: &NAPacket, info: Rc<NACodecInfo>, buf: NABufferType) -> NAFrame;
 818     fn fill_timestamps(&mut self, pkt: &NAPacket);
 819 }
 820
 821 impl FrameFromPacket for NAFrame {
 822     fn new_from_pkt(pkt: &NAPacket, info: Rc<NACodecInfo>, buf: NABufferType) -> NAFrame {
 823         NAFrame::new(pkt.ts, FrameType::Other, pkt.keyframe, info, HashMap::new(), buf)
 824     }
 825     fn fill_timestamps(&mut self, pkt: &NAPacket) {
 826         self.ts = pkt.get_time_information();
 827     }
 828 }
 829