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       => format!(""),
  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: offs, strides: 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: 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: info, data: data, chmap: chmap, offs: Vec::new(), len: 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 Vec<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().unwrap(),
 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 let None = ochr { 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 mut data: Vec<u8> = Vec::with_capacity(new_size.unwrap());
 356         data.resize(new_size.unwrap(), 0);
 357         let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 358         Ok(NABufferType::Video(buf.into_ref()))
 359     } else if !all_packed {
 360         for i in 0..fmt.get_num_comp() {
 361             let ochr = fmt.get_chromaton(i);
 362             if let None = ochr { continue; }
 363             let chr = ochr.unwrap();
 364             if !vinfo.is_flipped() {
 365                 offs.push(new_size as usize);
 366             }
 367             let stride = chr.get_linesize(width);
 368             let cur_h = chr.get_height(height);
 369             let cur_sz = stride.checked_mul(cur_h);
 370             if cur_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 371             let new_sz = new_size.checked_add(cur_sz.unwrap());
 372             if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 373             new_size = new_sz.unwrap();
 374             if vinfo.is_flipped() {
 375                 offs.push(new_size as usize);
 376             }
 377             strides.push(stride);
 378         }
 379         if max_depth <= 8 {
 380             let mut data: Vec<u8> = Vec::with_capacity(new_size);
 381             data.resize(new_size, 0);
 382             let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 383             Ok(NABufferType::Video(buf.into_ref()))
 384         } else if max_depth <= 16 {
 385             let mut data: Vec<u16> = Vec::with_capacity(new_size);
 386             data.resize(new_size, 0);
 387             let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 388             Ok(NABufferType::Video16(buf.into_ref()))
 389         } else {
 390             let mut data: Vec<u32> = Vec::with_capacity(new_size);
 391             data.resize(new_size, 0);
 392             let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 393             Ok(NABufferType::Video32(buf.into_ref()))
 394         }
 395     } else if all_bytealigned || unfit_elem_size {
 396         let elem_sz = fmt.get_elem_size();
 397         let line_sz = width.checked_mul(elem_sz as usize);
 398         if line_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 399         let new_sz = line_sz.unwrap().checked_mul(height);
 400         if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 401         new_size = new_sz.unwrap();
 402         let mut data: Vec<u8> = Vec::with_capacity(new_size);
 403         data.resize(new_size, 0);
 404         strides.push(line_sz.unwrap());
 405         let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 406         Ok(NABufferType::VideoPacked(buf.into_ref()))
 407     } else {
 408         let elem_sz = fmt.get_elem_size();
 409         let new_sz = width.checked_mul(height);
 410         if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 411         new_size = new_sz.unwrap();
 412         match elem_sz {
 413             2 => {
 414                     let mut data: Vec<u16> = Vec::with_capacity(new_size);
 415                     data.resize(new_size, 0);
 416                     strides.push(width);
 417                     let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 418                     Ok(NABufferType::Video16(buf.into_ref()))
 419                 },
 420             4 => {
 421                     let mut data: Vec<u32> = Vec::with_capacity(new_size);
 422                     data.resize(new_size, 0);
 423                     strides.push(width);
 424                     let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
 425                     Ok(NABufferType::Video32(buf.into_ref()))
 426                 },
 427             _ => unreachable!(),
 428         }
 429     }
 430 }
 431
 432 pub fn alloc_audio_buffer(ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelMap) -> Result<NABufferType, AllocatorError> {
 433     let mut offs: Vec<usize> = Vec::new();
 434     if ainfo.format.is_planar() || (ainfo.channels == 1 && (ainfo.format.get_bits() % 8) == 0) {
 435         let len = nsamples.checked_mul(ainfo.channels as usize);
 436         if len == None { return Err(AllocatorError::TooLargeDimensions); }
 437         let length = len.unwrap();
 438         for i in 0..ainfo.channels {
 439             offs.push((i as usize) * nsamples);
 440         }
 441         if ainfo.format.is_float() {
 442             if ainfo.format.get_bits() == 32 {
 443                 let mut data: Vec<f32> = Vec::with_capacity(length);
 444                 data.resize(length, 0.0);
 445                 let buf: NAAudioBuffer<f32> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
 446                 Ok(NABufferType::AudioF32(buf))
 447             } else {
 448                 Err(AllocatorError::TooLargeDimensions)
 449             }
 450         } else {
 451             if ainfo.format.get_bits() == 8 && !ainfo.format.is_signed() {
 452                 let mut data: Vec<u8> = Vec::with_capacity(length);
 453                 data.resize(length, 0);
 454                 let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
 455                 Ok(NABufferType::AudioU8(buf))
 456             } else if ainfo.format.get_bits() == 16 && ainfo.format.is_signed() {
 457                 let mut data: Vec<i16> = Vec::with_capacity(length);
 458                 data.resize(length, 0);
 459                 let buf: NAAudioBuffer<i16> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
 460                 Ok(NABufferType::AudioI16(buf))
 461             } else {
 462                 Err(AllocatorError::TooLargeDimensions)
 463             }
 464         }
 465     } else {
 466         let len = nsamples.checked_mul(ainfo.channels as usize);
 467         if len == None { return Err(AllocatorError::TooLargeDimensions); }
 468         let length = ainfo.format.get_audio_size(len.unwrap() as u64);
 469         let mut data: Vec<u8> = Vec::with_capacity(length);
 470         data.resize(length, 0);
 471         let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
 472         Ok(NABufferType::AudioPacked(buf))
 473     }
 474 }
 475
 476 pub fn alloc_data_buffer(size: usize) -> Result<NABufferType, AllocatorError> {
 477     let mut data: Vec<u8> = Vec::with_capacity(size);
 478     data.resize(size, 0);
 479     let buf: NABufferRef<Vec<u8>> = NABufferRef::new(data);
 480     Ok(NABufferType::Data(buf))
 481 }
 482
 483 pub fn copy_buffer(buf: NABufferType) -> NABufferType {
 484     buf.clone()
 485 }
 486
 487 pub struct NABufferPool {
 488     pool:       Vec<NABufferRef<NABufferType>>,
 489     max_len:    usize,
 490 }
 491
 492 impl NABufferPool {
 493     pub fn new(max_len: usize) -> Self {
 494         Self {
 495             pool:       Vec::with_capacity(max_len),
 496             max_len,
 497         }
 498     }
 499     pub fn prealloc_video(&mut self, vinfo: NAVideoInfo, align: u8) -> Result<(), AllocatorError> {
 500         let nbufs = self.max_len - self.pool.len();
 501         for _ in 0..nbufs {
 502             let buf = alloc_video_buffer(vinfo.clone(), align)?;
 503             self.pool.push(NABufferRef::new(buf));
 504         }
 505         Ok(())
 506     }
 507     pub fn prealloc_audio(&mut self, ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelMap) -> Result<(), AllocatorError> {
 508         let nbufs = self.max_len - self.pool.len();
 509         for _ in 0..nbufs {
 510             let buf = alloc_audio_buffer(ainfo.clone(), nsamples, chmap.clone())?;
 511             self.pool.push(NABufferRef::new(buf));
 512         }
 513         Ok(())
 514     }
 515     pub fn add(&mut self, buf: NABufferType) -> bool {
 516         if self.pool.len() < self.max_len {
 517             self.pool.push(NABufferRef::new(buf));
 518             true
 519         } else {
 520             false
 521         }
 522     }
 523     pub fn get_free(&mut self) -> Option<NABufferRef<NABufferType>> {
 524         for e in self.pool.iter() {
 525             if e.get_num_refs() == 1 {
 526                 return Some(e.clone());
 527             }
 528         }
 529         None
 530     }
 531 }
 532
 533 #[allow(dead_code)]
 534 #[derive(Clone)]
 535 pub struct NACodecInfo {
 536     name:       &'static str,
 537     properties: NACodecTypeInfo,
 538     extradata:  Option<Arc<Vec<u8>>>,
 539 }
 540
 541 pub type NACodecInfoRef = Arc<NACodecInfo>;
 542
 543 impl NACodecInfo {
 544     pub fn new(name: &'static str, p: NACodecTypeInfo, edata: Option<Vec<u8>>) -> Self {
 545         let extradata = match edata {
 546             None => None,
 547             Some(vec) => Some(Arc::new(vec)),
 548         };
 549         NACodecInfo { name: name, properties: p, extradata: extradata }
 550     }
 551     pub fn new_ref(name: &'static str, p: NACodecTypeInfo, edata: Option<Arc<Vec<u8>>>) -> Self {
 552         NACodecInfo { name: name, properties: p, extradata: edata }
 553     }
 554     pub fn into_ref(self) -> NACodecInfoRef { Arc::new(self) }
 555     pub fn get_properties(&self) -> NACodecTypeInfo { self.properties }
 556     pub fn get_extradata(&self) -> Option<Arc<Vec<u8>>> {
 557         if let Some(ref vec) = self.extradata { return Some(vec.clone()); }
 558         None
 559     }
 560     pub fn get_name(&self) -> &'static str { self.name }
 561     pub fn is_video(&self) -> bool {
 562         if let NACodecTypeInfo::Video(_) = self.properties { return true; }
 563         false
 564     }
 565     pub fn is_audio(&self) -> bool {
 566         if let NACodecTypeInfo::Audio(_) = self.properties { return true; }
 567         false
 568     }
 569     pub fn new_dummy() -> Arc<Self> {
 570         Arc::new(DUMMY_CODEC_INFO)
 571     }
 572     pub fn replace_info(&self, p: NACodecTypeInfo) -> Arc<Self> {
 573         Arc::new(NACodecInfo { name: self.name, properties: p, extradata: self.extradata.clone() })
 574     }
 575 }
 576
 577 impl Default for NACodecInfo {
 578     fn default() -> Self { DUMMY_CODEC_INFO }
 579 }
 580
 581 impl fmt::Display for NACodecInfo {
 582     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 583         let edata = match self.extradata.clone() {
 584             None => format!("no extradata"),
 585             Some(v) => format!("{} byte(s) of extradata", v.len()),
 586         };
 587         write!(f, "{}: {} {}", self.name, self.properties, edata)
 588     }
 589 }
 590
 591 pub const DUMMY_CODEC_INFO: NACodecInfo = NACodecInfo {
 592                                 name: "none",
 593                                 properties: NACodecTypeInfo::None,
 594                                 extradata: None };
 595
 596 #[derive(Debug,Clone)]
 597 pub enum NAValue {
 598     None,
 599     Int(i32),
 600     Long(i64),
 601     String(String),
 602     Data(Arc<Vec<u8>>),
 603 }
 604
 605 #[derive(Debug,Clone,Copy,PartialEq)]
 606 #[allow(dead_code)]
 607 pub enum FrameType {
 608     I,
 609     P,
 610     B,
 611     Skip,
 612     Other,
 613 }
 614
 615 impl fmt::Display for FrameType {
 616     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 617         match *self {
 618             FrameType::I => write!(f, "I"),
 619             FrameType::P => write!(f, "P"),
 620             FrameType::B => write!(f, "B"),
 621             FrameType::Skip => write!(f, "skip"),
 622             FrameType::Other => write!(f, "x"),
 623         }
 624     }
 625 }
 626
 627 #[derive(Debug,Clone,Copy)]
 628 pub struct NATimeInfo {
 629     pts:            Option<u64>,
 630     dts:            Option<u64>,
 631     duration:       Option<u64>,
 632     tb_num:         u32,
 633     tb_den:         u32,
 634 }
 635
 636 impl NATimeInfo {
 637     pub fn new(pts: Option<u64>, dts: Option<u64>, duration: Option<u64>, tb_num: u32, tb_den: u32) -> Self {
 638         NATimeInfo { pts: pts, dts: dts, duration: duration, tb_num: tb_num, tb_den: tb_den }
 639     }
 640     pub fn get_pts(&self) -> Option<u64> { self.pts }
 641     pub fn get_dts(&self) -> Option<u64> { self.dts }
 642     pub fn get_duration(&self) -> Option<u64> { self.duration }
 643     pub fn set_pts(&mut self, pts: Option<u64>) { self.pts = pts; }
 644     pub fn set_dts(&mut self, dts: Option<u64>) { self.dts = dts; }
 645     pub fn set_duration(&mut self, dur: Option<u64>) { self.duration = dur; }
 646 }
 647
 648 #[allow(dead_code)]
 649 #[derive(Clone)]
 650 pub struct NAFrame {
 651     ts:             NATimeInfo,
 652     buffer:         NABufferType,
 653     info:           NACodecInfoRef,
 654     ftype:          FrameType,
 655     key:            bool,
 656     options:        HashMap<String, NAValue>,
 657 }
 658
 659 pub type NAFrameRef = Arc<NAFrame>;
 660
 661 fn get_plane_size(info: &NAVideoInfo, idx: usize) -> (usize, usize) {
 662     let chromaton = info.get_format().get_chromaton(idx);
 663     if let None = chromaton { return (0, 0); }
 664     let (hs, vs) = chromaton.unwrap().get_subsampling();
 665     let w = (info.get_width()  + ((1 << hs) - 1)) >> hs;
 666     let h = (info.get_height() + ((1 << vs) - 1)) >> vs;
 667     (w, h)
 668 }
 669
 670 impl NAFrame {
 671     pub fn new(ts:             NATimeInfo,
 672                ftype:          FrameType,
 673                keyframe:       bool,
 674                info:           NACodecInfoRef,
 675                options:        HashMap<String, NAValue>,
 676                buffer:         NABufferType) -> Self {
 677         NAFrame { ts: ts, buffer: buffer, info: info, ftype: ftype, key: keyframe, options: options }
 678     }
 679     pub fn get_info(&self) -> NACodecInfoRef { self.info.clone() }
 680     pub fn get_frame_type(&self) -> FrameType { self.ftype }
 681     pub fn is_keyframe(&self) -> bool { self.key }
 682     pub fn set_frame_type(&mut self, ftype: FrameType) { self.ftype = ftype; }
 683     pub fn set_keyframe(&mut self, key: bool) { self.key = key; }
 684     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
 685     pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
 686     pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
 687     pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
 688     pub fn set_pts(&mut self, pts: Option<u64>) { self.ts.set_pts(pts); }
 689     pub fn set_dts(&mut self, dts: Option<u64>) { self.ts.set_dts(dts); }
 690     pub fn set_duration(&mut self, dur: Option<u64>) { self.ts.set_duration(dur); }
 691
 692     pub fn get_buffer(&self) -> NABufferType { self.buffer.clone() }
 693
 694     pub fn into_ref(self) -> NAFrameRef { Arc::new(self) }
 695 }
 696
 697 impl fmt::Display for NAFrame {
 698     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 699         let mut foo = format!("frame type {}", self.ftype);
 700         if let Some(pts) = self.ts.pts { foo = format!("{} pts {}", foo, pts); }
 701         if let Some(dts) = self.ts.dts { foo = format!("{} dts {}", foo, dts); }
 702         if let Some(dur) = self.ts.duration { foo = format!("{} duration {}", foo, dur); }
 703         if self.key { foo = format!("{} kf", foo); }
 704         write!(f, "[{}]", foo)
 705     }
 706 }
 707
 708 /// Possible stream types.
 709 #[derive(Debug,Clone,Copy)]
 710 #[allow(dead_code)]
 711 pub enum StreamType {
 712     /// video stream
 713     Video,
 714     /// audio stream
 715     Audio,
 716     /// subtitles
 717     Subtitles,
 718     /// any data stream (or might be an unrecognized audio/video stream)
 719     Data,
 720     /// nonexistent stream
 721     None,
 722 }
 723
 724 impl fmt::Display for StreamType {
 725     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 726         match *self {
 727             StreamType::Video => write!(f, "Video"),
 728             StreamType::Audio => write!(f, "Audio"),
 729             StreamType::Subtitles => write!(f, "Subtitles"),
 730             StreamType::Data => write!(f, "Data"),
 731             StreamType::None => write!(f, "-"),
 732         }
 733     }
 734 }
 735
 736 #[allow(dead_code)]
 737 #[derive(Clone)]
 738 pub struct NAStream {
 739     media_type:     StreamType,
 740     id:             u32,
 741     num:            usize,
 742     info:           NACodecInfoRef,
 743     tb_num:         u32,
 744     tb_den:         u32,
 745 }
 746
 747 pub type NAStreamRef = Arc<NAStream>;
 748
 749 pub fn reduce_timebase(tb_num: u32, tb_den: u32) -> (u32, u32) {
 750     if tb_num == 0 { return (tb_num, tb_den); }
 751     if (tb_den % tb_num) == 0 { return (1, tb_den / tb_num); }
 752
 753     let mut a = tb_num;
 754     let mut b = tb_den;
 755
 756     while a != b {
 757         if a > b { a -= b; }
 758         else if b > a { b -= a; }
 759     }
 760
 761     (tb_num / a, tb_den / a)
 762 }
 763
 764 impl NAStream {
 765     pub fn new(mt: StreamType, id: u32, info: NACodecInfo, tb_num: u32, tb_den: u32) -> Self {
 766         let (n, d) = reduce_timebase(tb_num, tb_den);
 767         NAStream { media_type: mt, id: id, num: 0, info: info.into_ref(), tb_num: n, tb_den: d }
 768     }
 769     pub fn get_id(&self) -> u32 { self.id }
 770     pub fn get_num(&self) -> usize { self.num }
 771     pub fn set_num(&mut self, num: usize) { self.num = num; }
 772     pub fn get_info(&self) -> NACodecInfoRef { self.info.clone() }
 773     pub fn get_timebase(&self) -> (u32, u32) { (self.tb_num, self.tb_den) }
 774     pub fn set_timebase(&mut self, tb_num: u32, tb_den: u32) {
 775         let (n, d) = reduce_timebase(tb_num, tb_den);
 776         self.tb_num = n;
 777         self.tb_den = d;
 778     }
 779     pub fn into_ref(self) -> NAStreamRef { Arc::new(self) }
 780 }
 781
 782 impl fmt::Display for NAStream {
 783     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 784         write!(f, "({}#{} @ {}/{} - {})", self.media_type, self.id, self.tb_num, self.tb_den, self.info.get_properties())
 785     }
 786 }
 787
 788 #[allow(dead_code)]
 789 pub struct NAPacket {
 790     stream:         NAStreamRef,
 791     ts:             NATimeInfo,
 792     buffer:         NABufferRef<Vec<u8>>,
 793     keyframe:       bool,
 794 //    options:        HashMap<String, NAValue<'a>>,
 795 }
 796
 797 impl NAPacket {
 798     pub fn new(str: NAStreamRef, ts: NATimeInfo, kf: bool, vec: Vec<u8>) -> Self {
 799 //        let mut vec: Vec<u8> = Vec::new();
 800 //        vec.resize(size, 0);
 801         NAPacket { stream: str, ts: ts, keyframe: kf, buffer: NABufferRef::new(vec) }
 802     }
 803     pub fn get_stream(&self) -> NAStreamRef { self.stream.clone() }
 804     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
 805     pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
 806     pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
 807     pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
 808     pub fn is_keyframe(&self) -> bool { self.keyframe }
 809     pub fn get_buffer(&self) -> NABufferRef<Vec<u8>> { self.buffer.clone() }
 810 }
 811
 812 impl Drop for NAPacket {
 813     fn drop(&mut self) {}
 814 }
 815
 816 impl fmt::Display for NAPacket {
 817     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 818         let mut foo = format!("[pkt for {} size {}", self.stream, self.buffer.len());
 819         if let Some(pts) = self.ts.pts { foo = format!("{} pts {}", foo, pts); }
 820         if let Some(dts) = self.ts.dts { foo = format!("{} dts {}", foo, dts); }
 821         if let Some(dur) = self.ts.duration { foo = format!("{} duration {}", foo, dur); }
 822         if self.keyframe { foo = format!("{} kf", foo); }
 823         foo = foo + "]";
 824         write!(f, "{}", foo)
 825     }
 826 }
 827
 828 pub trait FrameFromPacket {
 829     fn new_from_pkt(pkt: &NAPacket, info: NACodecInfoRef, buf: NABufferType) -> NAFrame;
 830     fn fill_timestamps(&mut self, pkt: &NAPacket);
 831 }
 832
 833 impl FrameFromPacket for NAFrame {
 834     fn new_from_pkt(pkt: &NAPacket, info: NACodecInfoRef, buf: NABufferType) -> NAFrame {
 835         NAFrame::new(pkt.ts, FrameType::Other, pkt.keyframe, info, HashMap::new(), buf)
 836     }
 837     fn fill_timestamps(&mut self, pkt: &NAPacket) {
 838         self.ts = pkt.get_time_information();
 839     }
 840 }
 841