nihav-core/src/frame.rs

   1 use std::cmp::max;
   2 use std::collections::HashMap;
   3 use std::fmt;
   4 use std::sync::Arc;
   5 pub use crate::formats::*;
   6 pub use crate::refs::*;
   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       => "".to_string(),
  98             NACodecTypeInfo::Audio(fmt) => format!("{}", fmt),
  99             NACodecTypeInfo::Video(fmt) => format!("{}", fmt),
 100         };
 101         write!(f, "{}", ret)
 102     }
 103 }
 104
 105 #[derive(Clone)]
 106 pub struct NAVideoBuffer<T> {
 107     info:    NAVideoInfo,
 108     data:    NABufferRef<Vec<T>>,
 109     offs:    Vec<usize>,
 110     strides: Vec<usize>,
 111 }
 112
 113 impl<T: Clone> NAVideoBuffer<T> {
 114     pub fn get_offset(&self, idx: usize) -> usize {
 115         if idx >= self.offs.len() { 0 }
 116         else { self.offs[idx] }
 117     }
 118     pub fn get_info(&self) -> NAVideoInfo { self.info }
 119     pub fn get_data(&self) -> &Vec<T> { self.data.as_ref() }
 120     pub fn get_data_mut(&mut self) -> Option<&mut Vec<T>> { self.data.as_mut() }
 121     pub fn copy_buffer(&mut self) -> Self {
 122         let mut data: Vec<T> = Vec::with_capacity(self.data.len());
 123         data.clone_from(self.data.as_ref());
 124         let mut offs: Vec<usize> = Vec::with_capacity(self.offs.len());
 125         offs.clone_from(&self.offs);
 126         let mut strides: Vec<usize> = Vec::with_capacity(self.strides.len());
 127         strides.clone_from(&self.strides);
 128         NAVideoBuffer { info: self.info, data: NABufferRef::new(data), offs, strides }
 129     }
 130     pub fn get_stride(&self, idx: usize) -> usize {
 131         if idx >= self.strides.len() { return 0; }
 132         self.strides[idx]
 133     }
 134     pub fn get_dimensions(&self, idx: usize) -> (usize, usize) {
 135         get_plane_size(&self.info, idx)
 136     }
 137     pub fn into_ref(self) -> NABufferRef<Self> {
 138         NABufferRef::new(self)
 139     }
 140 }
 141
 142 pub type NAVideoBufferRef<T> = NABufferRef<NAVideoBuffer<T>>;
 143
 144 #[derive(Clone)]
 145 pub struct NAAudioBuffer<T> {
 146     info:   NAAudioInfo,
 147     data:   NABufferRef<Vec<T>>,
 148     offs:   Vec<usize>,
 149     chmap:  NAChannelMap,
 150     len:    usize,
 151 }
 152
 153 impl<T: Clone> NAAudioBuffer<T> {
 154     pub fn get_offset(&self, idx: usize) -> usize {
 155         if idx >= self.offs.len() { 0 }
 156         else { self.offs[idx] }
 157     }
 158     pub fn get_info(&self) -> NAAudioInfo { self.info }
 159     pub fn get_chmap(&self) -> NAChannelMap { self.chmap.clone() }
 160     pub fn get_data(&self) -> &Vec<T> { self.data.as_ref() }
 161     pub fn get_data_mut(&mut self) -> Option<&mut Vec<T>> { self.data.as_mut() }
 162     pub fn copy_buffer(&mut self) -> Self {
 163         let mut data: Vec<T> = Vec::with_capacity(self.data.len());
 164         data.clone_from(self.data.as_ref());
 165         let mut offs: Vec<usize> = Vec::with_capacity(self.offs.len());
 166         offs.clone_from(&self.offs);
 167         NAAudioBuffer { info: self.info, data: NABufferRef::new(data), offs, chmap: self.get_chmap(), len: self.len }
 168     }
 169     pub fn get_length(&self) -> usize { self.len }
 170 }
 171
 172 impl NAAudioBuffer<u8> {
 173     pub fn new_from_buf(info: NAAudioInfo, data: NABufferRef<Vec<u8>>, chmap: NAChannelMap) -> Self {
 174         let len = data.len();
 175         NAAudioBuffer { info, data, chmap, offs: Vec::new(), len }
 176     }
 177 }
 178
 179 #[derive(Clone)]
 180 pub enum NABufferType {
 181     Video      (NAVideoBufferRef<u8>),
 182     Video16    (NAVideoBufferRef<u16>),
 183     Video32    (NAVideoBufferRef<u32>),
 184     VideoPacked(NAVideoBufferRef<u8>),
 185     AudioU8    (NAAudioBuffer<u8>),
 186     AudioI16   (NAAudioBuffer<i16>),
 187     AudioI32   (NAAudioBuffer<i32>),
 188     AudioF32   (NAAudioBuffer<f32>),
 189     AudioPacked(NAAudioBuffer<u8>),
 190     Data       (NABufferRef<Vec<u8>>),
 191     None,
 192 }
 193
 194 impl NABufferType {
 195     pub fn get_offset(&self, idx: usize) -> usize {
 196         match *self {
 197             NABufferType::Video(ref vb)       => vb.get_offset(idx),
 198             NABufferType::Video16(ref vb)     => vb.get_offset(idx),
 199             NABufferType::Video32(ref vb)     => vb.get_offset(idx),
 200             NABufferType::VideoPacked(ref vb) => vb.get_offset(idx),
 201             NABufferType::AudioU8(ref ab)     => ab.get_offset(idx),
 202             NABufferType::AudioI16(ref ab)    => ab.get_offset(idx),
 203             NABufferType::AudioF32(ref ab)    => ab.get_offset(idx),
 204             NABufferType::AudioPacked(ref ab) => ab.get_offset(idx),
 205             _ => 0,
 206         }
 207     }
 208     pub fn get_video_info(&self) -> Option<NAVideoInfo> {
 209         match *self {
 210             NABufferType::Video(ref vb)       => Some(vb.get_info()),
 211             NABufferType::Video16(ref vb)     => Some(vb.get_info()),
 212             NABufferType::Video32(ref vb)     => Some(vb.get_info()),
 213             NABufferType::VideoPacked(ref vb) => Some(vb.get_info()),
 214             _ => None,
 215         }
 216     }
 217     pub fn get_vbuf(&self) -> Option<NAVideoBufferRef<u8>> {
 218         match *self {
 219             NABufferType::Video(ref vb)       => Some(vb.clone()),
 220             NABufferType::VideoPacked(ref vb) => Some(vb.clone()),
 221             _ => None,
 222         }
 223     }
 224     pub fn get_vbuf16(&self) -> Option<NAVideoBufferRef<u16>> {
 225         match *self {
 226             NABufferType::Video16(ref vb)     => Some(vb.clone()),
 227             _ => None,
 228         }
 229     }
 230     pub fn get_vbuf32(&self) -> Option<NAVideoBufferRef<u32>> {
 231         match *self {
 232             NABufferType::Video32(ref vb)     => Some(vb.clone()),
 233             _ => None,
 234         }
 235     }
 236     pub fn get_abuf_u8(&self) -> Option<NAAudioBuffer<u8>> {
 237         match *self {
 238             NABufferType::AudioU8(ref ab) => Some(ab.clone()),
 239             NABufferType::AudioPacked(ref ab) => Some(ab.clone()),
 240             _ => None,
 241         }
 242     }
 243     pub fn get_abuf_i16(&self) -> Option<NAAudioBuffer<i16>> {
 244         match *self {
 245             NABufferType::AudioI16(ref ab) => Some(ab.clone()),
 246             _ => None,
 247         }
 248     }
 249     pub fn get_abuf_i32(&self) -> Option<NAAudioBuffer<i32>> {
 250         match *self {
 251             NABufferType::AudioI32(ref ab) => Some(ab.clone()),
 252             _ => None,
 253         }
 254     }
 255     pub fn get_abuf_f32(&self) -> Option<NAAudioBuffer<f32>> {
 256         match *self {
 257             NABufferType::AudioF32(ref ab) => Some(ab.clone()),
 258             _ => None,
 259         }
 260     }
 261 }
 262
 263 const NA_SIMPLE_VFRAME_COMPONENTS: usize = 4;
 264 pub struct NASimpleVideoFrame<'a, T: Copy> {
 265     pub width:      [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 266     pub height:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 267     pub flip:       bool,
 268     pub stride:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 269     pub offset:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 270     pub components: usize,
 271     pub data:       &'a mut [T],
 272 }
 273
 274 impl<'a, T:Copy> NASimpleVideoFrame<'a, T> {
 275     pub fn from_video_buf(vbuf: &'a mut NAVideoBuffer<T>) -> Option<Self> {
 276         let vinfo = vbuf.get_info();
 277         let components = vinfo.format.components as usize;
 278         if components > NA_SIMPLE_VFRAME_COMPONENTS {
 279             return None;
 280         }
 281         let mut w: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 282         let mut h: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 283         let mut s: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 284         let mut o: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 285         for comp in 0..components {
 286             let (width, height) = vbuf.get_dimensions(comp);
 287             w[comp] = width;
 288             h[comp] = height;
 289             s[comp] = vbuf.get_stride(comp);
 290             o[comp] = vbuf.get_offset(comp);
 291         }
 292         let flip = vinfo.flipped;
 293         Some(NASimpleVideoFrame {
 294             width:  w,
 295             height: h,
 296             flip,
 297             stride: s,
 298             offset: o,
 299             components,
 300             data: vbuf.data.as_mut_slice(),
 301             })
 302     }
 303 }
 304
 305 #[derive(Debug,Clone,Copy,PartialEq)]
 306 pub enum AllocatorError {
 307     TooLargeDimensions,
 308     FormatError,
 309 }
 310
 311 pub fn alloc_video_buffer(vinfo: NAVideoInfo, align: u8) -> Result<NABufferType, AllocatorError> {
 312     let fmt = &vinfo.format;
 313     let mut new_size: usize = 0;
 314     let mut offs:    Vec<usize> = Vec::new();
 315     let mut strides: Vec<usize> = Vec::new();
 316
 317     for i in 0..fmt.get_num_comp() {
 318         if fmt.get_chromaton(i) == None { return Err(AllocatorError::FormatError); }
 319     }
 320
 321     let align_mod = ((1 << align) as usize) - 1;
 322     let width  = ((vinfo.width  as usize) + align_mod) & !align_mod;
 323     let height = ((vinfo.height as usize) + align_mod) & !align_mod;
 324     let mut max_depth = 0;
 325     let mut all_packed = true;
 326     let mut all_bytealigned = true;
 327     for i in 0..fmt.get_num_comp() {
 328         let ochr = fmt.get_chromaton(i);
 329         if ochr.is_none() { continue; }
 330         let chr = ochr.unwrap();
 331         if !chr.is_packed() {
 332             all_packed = false;
 333         } else if ((chr.get_shift() + chr.get_depth()) & 7) != 0 {
 334             all_bytealigned = false;
 335         }
 336         max_depth = max(max_depth, chr.get_depth());
 337     }
 338     let unfit_elem_size = match fmt.get_elem_size() {
 339             2 | 4 => false,
 340             _ => true,
 341         };
 342
 343 //todo semi-packed like NV12
 344     if fmt.is_paletted() {
 345 //todo various-sized palettes?
 346         let stride = vinfo.get_format().get_chromaton(0).unwrap().get_linesize(width);
 347         let pic_sz = stride.checked_mul(height);
 348         if pic_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 349         let pal_size = 256 * (fmt.get_elem_size() as usize);
 350         let new_size = pic_sz.unwrap().checked_add(pal_size);
 351         if new_size == None { return Err(AllocatorError::TooLargeDimensions); }
 352         offs.push(0);
 353         offs.push(stride * height);
 354         strides.push(stride);
 355         let data: Vec<u8> = vec![0; new_size.unwrap()];
 356         let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 357         Ok(NABufferType::Video(buf.into_ref()))
 358     } else if !all_packed {
 359         for i in 0..fmt.get_num_comp() {
 360             let ochr = fmt.get_chromaton(i);
 361             if ochr.is_none() { continue; }
 362             let chr = ochr.unwrap();
 363             if !vinfo.is_flipped() {
 364                 offs.push(new_size as usize);
 365             }
 366             let stride = chr.get_linesize(width);
 367             let cur_h = chr.get_height(height);
 368             let cur_sz = stride.checked_mul(cur_h);
 369             if cur_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 370             let new_sz = new_size.checked_add(cur_sz.unwrap());
 371             if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 372             new_size = new_sz.unwrap();
 373             if vinfo.is_flipped() {
 374                 offs.push(new_size as usize);
 375             }
 376             strides.push(stride);
 377         }
 378         if max_depth <= 8 {
 379             let data: Vec<u8> = vec![0; new_size];
 380             let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 381             Ok(NABufferType::Video(buf.into_ref()))
 382         } else if max_depth <= 16 {
 383             let data: Vec<u16> = vec![0; new_size];
 384             let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 385             Ok(NABufferType::Video16(buf.into_ref()))
 386         } else {
 387             let data: Vec<u32> = vec![0; new_size];
 388             let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 389             Ok(NABufferType::Video32(buf.into_ref()))
 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 data: Vec<u8> = vec![0; new_size];
 399         strides.push(line_sz.unwrap());
 400         let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 401         Ok(NABufferType::VideoPacked(buf.into_ref()))
 402     } else {
 403         let elem_sz = fmt.get_elem_size();
 404         let new_sz = width.checked_mul(height);
 405         if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 406         new_size = new_sz.unwrap();
 407         match elem_sz {
 408             2 => {
 409                     let data: Vec<u16> = vec![0; new_size];
 410                     strides.push(width);
 411                     let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 412                     Ok(NABufferType::Video16(buf.into_ref()))
 413                 },
 414             4 => {
 415                     let data: Vec<u32> = vec![0; new_size];
 416                     strides.push(width);
 417                     let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 418                     Ok(NABufferType::Video32(buf.into_ref()))
 419                 },
 420             _ => unreachable!(),
 421         }
 422     }
 423 }
 424
 425 #[allow(clippy::collapsible_if)]
 426 pub fn alloc_audio_buffer(ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelMap) -> Result<NABufferType, AllocatorError> {
 427     let mut offs: Vec<usize> = Vec::new();
 428     if ainfo.format.is_planar() || (ainfo.channels == 1 && (ainfo.format.get_bits() % 8) == 0) {
 429         let len = nsamples.checked_mul(ainfo.channels as usize);
 430         if len == None { return Err(AllocatorError::TooLargeDimensions); }
 431         let length = len.unwrap();
 432         for i in 0..ainfo.channels {
 433             offs.push((i as usize) * nsamples);
 434         }
 435         if ainfo.format.is_float() {
 436             if ainfo.format.get_bits() == 32 {
 437                 let data: Vec<f32> = vec![0.0; length];
 438                 let buf: NAAudioBuffer<f32> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples };
 439                 Ok(NABufferType::AudioF32(buf))
 440             } else {
 441                 Err(AllocatorError::TooLargeDimensions)
 442             }
 443         } else {
 444             if ainfo.format.get_bits() == 8 && !ainfo.format.is_signed() {
 445                 let data: Vec<u8> = vec![0; length];
 446                 let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples };
 447                 Ok(NABufferType::AudioU8(buf))
 448             } else if ainfo.format.get_bits() == 16 && ainfo.format.is_signed() {
 449                 let data: Vec<i16> = vec![0; length];
 450                 let buf: NAAudioBuffer<i16> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples };
 451                 Ok(NABufferType::AudioI16(buf))
 452             } else {
 453                 Err(AllocatorError::TooLargeDimensions)
 454             }
 455         }
 456     } else {
 457         let len = nsamples.checked_mul(ainfo.channels as usize);
 458         if len == None { return Err(AllocatorError::TooLargeDimensions); }
 459         let length = ainfo.format.get_audio_size(len.unwrap() as u64);
 460         let data: Vec<u8> = vec![0; length];
 461         let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples };
 462         Ok(NABufferType::AudioPacked(buf))
 463     }
 464 }
 465
 466 pub fn alloc_data_buffer(size: usize) -> Result<NABufferType, AllocatorError> {
 467     let data: Vec<u8> = vec![0; size];
 468     let buf: NABufferRef<Vec<u8>> = NABufferRef::new(data);
 469     Ok(NABufferType::Data(buf))
 470 }
 471
 472 pub fn copy_buffer(buf: NABufferType) -> NABufferType {
 473     buf.clone()
 474 }
 475
 476 pub struct NAVideoBufferPool<T:Copy> {
 477     pool:       Vec<NAVideoBufferRef<T>>,
 478     max_len:    usize,
 479     add_len:    usize,
 480 }
 481
 482 impl<T:Copy> NAVideoBufferPool<T> {
 483     pub fn new(max_len: usize) -> Self {
 484         Self {
 485             pool:       Vec::with_capacity(max_len),
 486             max_len,
 487             add_len: 0,
 488         }
 489     }
 490     pub fn set_dec_bufs(&mut self, add_len: usize) {
 491         self.add_len = add_len;
 492     }
 493     pub fn get_free(&mut self) -> Option<NAVideoBufferRef<T>> {
 494         for e in self.pool.iter() {
 495             if e.get_num_refs() == 1 {
 496                 return Some(e.clone());
 497             }
 498         }
 499         None
 500     }
 501     pub fn get_copy(&mut self, rbuf: &NAVideoBufferRef<T>) -> Option<NAVideoBufferRef<T>> {
 502         let mut dbuf = self.get_free()?;
 503         dbuf.data.copy_from_slice(&rbuf.data);
 504         Some(dbuf)
 505     }
 506     pub fn reset(&mut self) {
 507         self.pool.truncate(0);
 508     }
 509 }
 510
 511 impl NAVideoBufferPool<u8> {
 512     pub fn prealloc_video(&mut self, vinfo: NAVideoInfo, align: u8) -> Result<(), AllocatorError> {
 513         let nbufs = self.max_len + self.add_len - self.pool.len();
 514         for _ in 0..nbufs {
 515             let vbuf = alloc_video_buffer(vinfo, align)?;
 516             if let NABufferType::Video(buf) = vbuf {
 517                 self.pool.push(buf);
 518             } else if let NABufferType::VideoPacked(buf) = vbuf {
 519                 self.pool.push(buf);
 520             } else {
 521                 return Err(AllocatorError::FormatError);
 522             }
 523         }
 524         Ok(())
 525     }
 526 }
 527
 528 impl NAVideoBufferPool<u16> {
 529     pub fn prealloc_video(&mut self, vinfo: NAVideoInfo, align: u8) -> Result<(), AllocatorError> {
 530         let nbufs = self.max_len + self.add_len - self.pool.len();
 531         for _ in 0..nbufs {
 532             let vbuf = alloc_video_buffer(vinfo, align)?;
 533             if let NABufferType::Video16(buf) = vbuf {
 534                 self.pool.push(buf);
 535             } else {
 536                 return Err(AllocatorError::FormatError);
 537             }
 538         }
 539         Ok(())
 540     }
 541 }
 542
 543 impl NAVideoBufferPool<u32> {
 544     pub fn prealloc_video(&mut self, vinfo: NAVideoInfo, align: u8) -> Result<(), AllocatorError> {
 545         let nbufs = self.max_len + self.add_len - self.pool.len();
 546         for _ in 0..nbufs {
 547             let vbuf = alloc_video_buffer(vinfo, align)?;
 548             if let NABufferType::Video32(buf) = vbuf {
 549                 self.pool.push(buf);
 550             } else {
 551                 return Err(AllocatorError::FormatError);
 552             }
 553         }
 554         Ok(())
 555     }
 556 }
 557
 558 #[allow(dead_code)]
 559 #[derive(Clone)]
 560 pub struct NACodecInfo {
 561     name:       &'static str,
 562     properties: NACodecTypeInfo,
 563     extradata:  Option<Arc<Vec<u8>>>,
 564 }
 565
 566 pub type NACodecInfoRef = Arc<NACodecInfo>;
 567
 568 impl NACodecInfo {
 569     pub fn new(name: &'static str, p: NACodecTypeInfo, edata: Option<Vec<u8>>) -> Self {
 570         let extradata = match edata {
 571             None => None,
 572             Some(vec) => Some(Arc::new(vec)),
 573         };
 574         NACodecInfo { name, properties: p, extradata }
 575     }
 576     pub fn new_ref(name: &'static str, p: NACodecTypeInfo, edata: Option<Arc<Vec<u8>>>) -> Self {
 577         NACodecInfo { name, properties: p, extradata: edata }
 578     }
 579     pub fn into_ref(self) -> NACodecInfoRef { Arc::new(self) }
 580     pub fn get_properties(&self) -> NACodecTypeInfo { self.properties }
 581     pub fn get_extradata(&self) -> Option<Arc<Vec<u8>>> {
 582         if let Some(ref vec) = self.extradata { return Some(vec.clone()); }
 583         None
 584     }
 585     pub fn get_name(&self) -> &'static str { self.name }
 586     pub fn is_video(&self) -> bool {
 587         if let NACodecTypeInfo::Video(_) = self.properties { return true; }
 588         false
 589     }
 590     pub fn is_audio(&self) -> bool {
 591         if let NACodecTypeInfo::Audio(_) = self.properties { return true; }
 592         false
 593     }
 594     pub fn new_dummy() -> Arc<Self> {
 595         Arc::new(DUMMY_CODEC_INFO)
 596     }
 597     pub fn replace_info(&self, p: NACodecTypeInfo) -> Arc<Self> {
 598         Arc::new(NACodecInfo { name: self.name, properties: p, extradata: self.extradata.clone() })
 599     }
 600 }
 601
 602 impl Default for NACodecInfo {
 603     fn default() -> Self { DUMMY_CODEC_INFO }
 604 }
 605
 606 impl fmt::Display for NACodecInfo {
 607     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 608         let edata = match self.extradata.clone() {
 609             None => "no extradata".to_string(),
 610             Some(v) => format!("{} byte(s) of extradata", v.len()),
 611         };
 612         write!(f, "{}: {} {}", self.name, self.properties, edata)
 613     }
 614 }
 615
 616 pub const DUMMY_CODEC_INFO: NACodecInfo = NACodecInfo {
 617                                 name: "none",
 618                                 properties: NACodecTypeInfo::None,
 619                                 extradata: None };
 620
 621 #[derive(Debug,Clone)]
 622 pub enum NAValue {
 623     None,
 624     Int(i32),
 625     Long(i64),
 626     String(String),
 627     Data(Arc<Vec<u8>>),
 628 }
 629
 630 #[derive(Debug,Clone,Copy,PartialEq)]
 631 #[allow(dead_code)]
 632 pub enum FrameType {
 633     I,
 634     P,
 635     B,
 636     Skip,
 637     Other,
 638 }
 639
 640 impl fmt::Display for FrameType {
 641     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 642         match *self {
 643             FrameType::I => write!(f, "I"),
 644             FrameType::P => write!(f, "P"),
 645             FrameType::B => write!(f, "B"),
 646             FrameType::Skip => write!(f, "skip"),
 647             FrameType::Other => write!(f, "x"),
 648         }
 649     }
 650 }
 651
 652 #[derive(Debug,Clone,Copy)]
 653 pub struct NATimeInfo {
 654     pts:            Option<u64>,
 655     dts:            Option<u64>,
 656     duration:       Option<u64>,
 657     tb_num:         u32,
 658     tb_den:         u32,
 659 }
 660
 661 impl NATimeInfo {
 662     pub fn new(pts: Option<u64>, dts: Option<u64>, duration: Option<u64>, tb_num: u32, tb_den: u32) -> Self {
 663         NATimeInfo { pts, dts, duration, tb_num, tb_den }
 664     }
 665     pub fn get_pts(&self) -> Option<u64> { self.pts }
 666     pub fn get_dts(&self) -> Option<u64> { self.dts }
 667     pub fn get_duration(&self) -> Option<u64> { self.duration }
 668     pub fn set_pts(&mut self, pts: Option<u64>) { self.pts = pts; }
 669     pub fn set_dts(&mut self, dts: Option<u64>) { self.dts = dts; }
 670     pub fn set_duration(&mut self, dur: Option<u64>) { self.duration = dur; }
 671 }
 672
 673 #[allow(dead_code)]
 674 #[derive(Clone)]
 675 pub struct NAFrame {
 676     ts:             NATimeInfo,
 677     buffer:         NABufferType,
 678     info:           NACodecInfoRef,
 679     ftype:          FrameType,
 680     key:            bool,
 681     options:        HashMap<String, NAValue>,
 682 }
 683
 684 pub type NAFrameRef = Arc<NAFrame>;
 685
 686 fn get_plane_size(info: &NAVideoInfo, idx: usize) -> (usize, usize) {
 687     let chromaton = info.get_format().get_chromaton(idx);
 688     if chromaton.is_none() { return (0, 0); }
 689     let (hs, vs) = chromaton.unwrap().get_subsampling();
 690     let w = (info.get_width()  + ((1 << hs) - 1)) >> hs;
 691     let h = (info.get_height() + ((1 << vs) - 1)) >> vs;
 692     (w, h)
 693 }
 694
 695 impl NAFrame {
 696     pub fn new(ts:             NATimeInfo,
 697                ftype:          FrameType,
 698                keyframe:       bool,
 699                info:           NACodecInfoRef,
 700                options:        HashMap<String, NAValue>,
 701                buffer:         NABufferType) -> Self {
 702         NAFrame { ts, buffer, info, ftype, key: keyframe, options }
 703     }
 704     pub fn get_info(&self) -> NACodecInfoRef { self.info.clone() }
 705     pub fn get_frame_type(&self) -> FrameType { self.ftype }
 706     pub fn is_keyframe(&self) -> bool { self.key }
 707     pub fn set_frame_type(&mut self, ftype: FrameType) { self.ftype = ftype; }
 708     pub fn set_keyframe(&mut self, key: bool) { self.key = key; }
 709     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
 710     pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
 711     pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
 712     pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
 713     pub fn set_pts(&mut self, pts: Option<u64>) { self.ts.set_pts(pts); }
 714     pub fn set_dts(&mut self, dts: Option<u64>) { self.ts.set_dts(dts); }
 715     pub fn set_duration(&mut self, dur: Option<u64>) { self.ts.set_duration(dur); }
 716
 717     pub fn get_buffer(&self) -> NABufferType { self.buffer.clone() }
 718
 719     pub fn into_ref(self) -> NAFrameRef { Arc::new(self) }
 720 }
 721
 722 impl fmt::Display for NAFrame {
 723     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 724         let mut ostr = format!("frame type {}", self.ftype);
 725         if let Some(pts) = self.ts.pts { ostr = format!("{} pts {}", ostr, pts); }
 726         if let Some(dts) = self.ts.dts { ostr = format!("{} dts {}", ostr, dts); }
 727         if let Some(dur) = self.ts.duration { ostr = format!("{} duration {}", ostr, dur); }
 728         if self.key { ostr = format!("{} kf", ostr); }
 729         write!(f, "[{}]", ostr)
 730     }
 731 }
 732
 733 /// Possible stream types.
 734 #[derive(Debug,Clone,Copy)]
 735 #[allow(dead_code)]
 736 pub enum StreamType {
 737     /// video stream
 738     Video,
 739     /// audio stream
 740     Audio,
 741     /// subtitles
 742     Subtitles,
 743     /// any data stream (or might be an unrecognized audio/video stream)
 744     Data,
 745     /// nonexistent stream
 746     None,
 747 }
 748
 749 impl fmt::Display for StreamType {
 750     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 751         match *self {
 752             StreamType::Video => write!(f, "Video"),
 753             StreamType::Audio => write!(f, "Audio"),
 754             StreamType::Subtitles => write!(f, "Subtitles"),
 755             StreamType::Data => write!(f, "Data"),
 756             StreamType::None => write!(f, "-"),
 757         }
 758     }
 759 }
 760
 761 #[allow(dead_code)]
 762 #[derive(Clone)]
 763 pub struct NAStream {
 764     media_type:     StreamType,
 765     id:             u32,
 766     num:            usize,
 767     info:           NACodecInfoRef,
 768     tb_num:         u32,
 769     tb_den:         u32,
 770 }
 771
 772 pub type NAStreamRef = Arc<NAStream>;
 773
 774 pub fn reduce_timebase(tb_num: u32, tb_den: u32) -> (u32, u32) {
 775     if tb_num == 0 { return (tb_num, tb_den); }
 776     if (tb_den % tb_num) == 0 { return (1, tb_den / tb_num); }
 777
 778     let mut a = tb_num;
 779     let mut b = tb_den;
 780
 781     while a != b {
 782         if a > b { a -= b; }
 783         else if b > a { b -= a; }
 784     }
 785
 786     (tb_num / a, tb_den / a)
 787 }
 788
 789 impl NAStream {
 790     pub fn new(mt: StreamType, id: u32, info: NACodecInfo, tb_num: u32, tb_den: u32) -> Self {
 791         let (n, d) = reduce_timebase(tb_num, tb_den);
 792         NAStream { media_type: mt, id, num: 0, info: info.into_ref(), tb_num: n, tb_den: d }
 793     }
 794     pub fn get_id(&self) -> u32 { self.id }
 795     pub fn get_num(&self) -> usize { self.num }
 796     pub fn set_num(&mut self, num: usize) { self.num = num; }
 797     pub fn get_info(&self) -> NACodecInfoRef { self.info.clone() }
 798     pub fn get_timebase(&self) -> (u32, u32) { (self.tb_num, self.tb_den) }
 799     pub fn set_timebase(&mut self, tb_num: u32, tb_den: u32) {
 800         let (n, d) = reduce_timebase(tb_num, tb_den);
 801         self.tb_num = n;
 802         self.tb_den = d;
 803     }
 804     pub fn into_ref(self) -> NAStreamRef { Arc::new(self) }
 805 }
 806
 807 impl fmt::Display for NAStream {
 808     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 809         write!(f, "({}#{} @ {}/{} - {})", self.media_type, self.id, self.tb_num, self.tb_den, self.info.get_properties())
 810     }
 811 }
 812
 813 #[allow(dead_code)]
 814 pub struct NAPacket {
 815     stream:         NAStreamRef,
 816     ts:             NATimeInfo,
 817     buffer:         NABufferRef<Vec<u8>>,
 818     keyframe:       bool,
 819 //    options:        HashMap<String, NAValue<'a>>,
 820 }
 821
 822 impl NAPacket {
 823     pub fn new(str: NAStreamRef, ts: NATimeInfo, kf: bool, vec: Vec<u8>) -> Self {
 824 //        let mut vec: Vec<u8> = Vec::new();
 825 //        vec.resize(size, 0);
 826         NAPacket { stream: str, ts, keyframe: kf, buffer: NABufferRef::new(vec) }
 827     }
 828     pub fn get_stream(&self) -> NAStreamRef { self.stream.clone() }
 829     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
 830     pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
 831     pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
 832     pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
 833     pub fn is_keyframe(&self) -> bool { self.keyframe }
 834     pub fn get_buffer(&self) -> NABufferRef<Vec<u8>> { self.buffer.clone() }
 835 }
 836
 837 impl Drop for NAPacket {
 838     fn drop(&mut self) {}
 839 }
 840
 841 impl fmt::Display for NAPacket {
 842     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 843         let mut ostr = format!("[pkt for {} size {}", self.stream, self.buffer.len());
 844         if let Some(pts) = self.ts.pts { ostr = format!("{} pts {}", ostr, pts); }
 845         if let Some(dts) = self.ts.dts { ostr = format!("{} dts {}", ostr, dts); }
 846         if let Some(dur) = self.ts.duration { ostr = format!("{} duration {}", ostr, dur); }
 847         if self.keyframe { ostr = format!("{} kf", ostr); }
 848         ostr += "]";
 849         write!(f, "{}", ostr)
 850     }
 851 }
 852
 853 pub trait FrameFromPacket {
 854     fn new_from_pkt(pkt: &NAPacket, info: NACodecInfoRef, buf: NABufferType) -> NAFrame;
 855     fn fill_timestamps(&mut self, pkt: &NAPacket);
 856 }
 857
 858 impl FrameFromPacket for NAFrame {
 859     fn new_from_pkt(pkt: &NAPacket, info: NACodecInfoRef, buf: NABufferType) -> NAFrame {
 860         NAFrame::new(pkt.ts, FrameType::Other, pkt.keyframe, info, HashMap::new(), buf)
 861     }
 862     fn fill_timestamps(&mut self, pkt: &NAPacket) {
 863         self.ts = pkt.get_time_information();
 864     }
 865 }
 866