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     stride: usize,
 150     chmap:  NAChannelMap,
 151     len:    usize,
 152 }
 153
 154 impl<T: Clone> NAAudioBuffer<T> {
 155     pub fn get_offset(&self, idx: usize) -> usize {
 156         if idx >= self.offs.len() { 0 }
 157         else { self.offs[idx] }
 158     }
 159     pub fn get_stride(&self) -> usize { self.stride }
 160     pub fn get_info(&self) -> NAAudioInfo { self.info }
 161     pub fn get_chmap(&self) -> NAChannelMap { self.chmap.clone() }
 162     pub fn get_data(&self) -> &Vec<T> { self.data.as_ref() }
 163     pub fn get_data_mut(&mut self) -> Option<&mut Vec<T>> { self.data.as_mut() }
 164     pub fn copy_buffer(&mut self) -> Self {
 165         let mut data: Vec<T> = Vec::with_capacity(self.data.len());
 166         data.clone_from(self.data.as_ref());
 167         let mut offs: Vec<usize> = Vec::with_capacity(self.offs.len());
 168         offs.clone_from(&self.offs);
 169         NAAudioBuffer { info: self.info, data: NABufferRef::new(data), offs, chmap: self.get_chmap(), len: self.len, stride: self.stride }
 170     }
 171     pub fn get_length(&self) -> usize { self.len }
 172 }
 173
 174 impl NAAudioBuffer<u8> {
 175     pub fn new_from_buf(info: NAAudioInfo, data: NABufferRef<Vec<u8>>, chmap: NAChannelMap) -> Self {
 176         let len = data.len();
 177         NAAudioBuffer { info, data, chmap, offs: Vec::new(), len, stride: 0 }
 178     }
 179 }
 180
 181 #[derive(Clone)]
 182 pub enum NABufferType {
 183     Video      (NAVideoBufferRef<u8>),
 184     Video16    (NAVideoBufferRef<u16>),
 185     Video32    (NAVideoBufferRef<u32>),
 186     VideoPacked(NAVideoBufferRef<u8>),
 187     AudioU8    (NAAudioBuffer<u8>),
 188     AudioI16   (NAAudioBuffer<i16>),
 189     AudioI32   (NAAudioBuffer<i32>),
 190     AudioF32   (NAAudioBuffer<f32>),
 191     AudioPacked(NAAudioBuffer<u8>),
 192     Data       (NABufferRef<Vec<u8>>),
 193     None,
 194 }
 195
 196 impl NABufferType {
 197     pub fn get_offset(&self, idx: usize) -> usize {
 198         match *self {
 199             NABufferType::Video(ref vb)       => vb.get_offset(idx),
 200             NABufferType::Video16(ref vb)     => vb.get_offset(idx),
 201             NABufferType::Video32(ref vb)     => vb.get_offset(idx),
 202             NABufferType::VideoPacked(ref vb) => vb.get_offset(idx),
 203             NABufferType::AudioU8(ref ab)     => ab.get_offset(idx),
 204             NABufferType::AudioI16(ref ab)    => ab.get_offset(idx),
 205             NABufferType::AudioF32(ref ab)    => ab.get_offset(idx),
 206             NABufferType::AudioPacked(ref ab) => ab.get_offset(idx),
 207             _ => 0,
 208         }
 209     }
 210     pub fn get_video_info(&self) -> Option<NAVideoInfo> {
 211         match *self {
 212             NABufferType::Video(ref vb)       => Some(vb.get_info()),
 213             NABufferType::Video16(ref vb)     => Some(vb.get_info()),
 214             NABufferType::Video32(ref vb)     => Some(vb.get_info()),
 215             NABufferType::VideoPacked(ref vb) => Some(vb.get_info()),
 216             _ => None,
 217         }
 218     }
 219     pub fn get_vbuf(&self) -> Option<NAVideoBufferRef<u8>> {
 220         match *self {
 221             NABufferType::Video(ref vb)       => Some(vb.clone()),
 222             NABufferType::VideoPacked(ref vb) => Some(vb.clone()),
 223             _ => None,
 224         }
 225     }
 226     pub fn get_vbuf16(&self) -> Option<NAVideoBufferRef<u16>> {
 227         match *self {
 228             NABufferType::Video16(ref vb)     => Some(vb.clone()),
 229             _ => None,
 230         }
 231     }
 232     pub fn get_vbuf32(&self) -> Option<NAVideoBufferRef<u32>> {
 233         match *self {
 234             NABufferType::Video32(ref vb)     => Some(vb.clone()),
 235             _ => None,
 236         }
 237     }
 238     pub fn get_abuf_u8(&self) -> Option<NAAudioBuffer<u8>> {
 239         match *self {
 240             NABufferType::AudioU8(ref ab) => Some(ab.clone()),
 241             NABufferType::AudioPacked(ref ab) => Some(ab.clone()),
 242             _ => None,
 243         }
 244     }
 245     pub fn get_abuf_i16(&self) -> Option<NAAudioBuffer<i16>> {
 246         match *self {
 247             NABufferType::AudioI16(ref ab) => Some(ab.clone()),
 248             _ => None,
 249         }
 250     }
 251     pub fn get_abuf_i32(&self) -> Option<NAAudioBuffer<i32>> {
 252         match *self {
 253             NABufferType::AudioI32(ref ab) => Some(ab.clone()),
 254             _ => None,
 255         }
 256     }
 257     pub fn get_abuf_f32(&self) -> Option<NAAudioBuffer<f32>> {
 258         match *self {
 259             NABufferType::AudioF32(ref ab) => Some(ab.clone()),
 260             _ => None,
 261         }
 262     }
 263 }
 264
 265 const NA_SIMPLE_VFRAME_COMPONENTS: usize = 4;
 266 pub struct NASimpleVideoFrame<'a, T: Copy> {
 267     pub width:      [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 268     pub height:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 269     pub flip:       bool,
 270     pub stride:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 271     pub offset:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 272     pub components: usize,
 273     pub data:       &'a mut [T],
 274 }
 275
 276 impl<'a, T:Copy> NASimpleVideoFrame<'a, T> {
 277     pub fn from_video_buf(vbuf: &'a mut NAVideoBuffer<T>) -> Option<Self> {
 278         let vinfo = vbuf.get_info();
 279         let components = vinfo.format.components as usize;
 280         if components > NA_SIMPLE_VFRAME_COMPONENTS {
 281             return None;
 282         }
 283         let mut w: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 284         let mut h: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 285         let mut s: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 286         let mut o: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 287         for comp in 0..components {
 288             let (width, height) = vbuf.get_dimensions(comp);
 289             w[comp] = width;
 290             h[comp] = height;
 291             s[comp] = vbuf.get_stride(comp);
 292             o[comp] = vbuf.get_offset(comp);
 293         }
 294         let flip = vinfo.flipped;
 295         Some(NASimpleVideoFrame {
 296             width:  w,
 297             height: h,
 298             flip,
 299             stride: s,
 300             offset: o,
 301             components,
 302             data: vbuf.data.as_mut_slice(),
 303             })
 304     }
 305 }
 306
 307 #[derive(Debug,Clone,Copy,PartialEq)]
 308 pub enum AllocatorError {
 309     TooLargeDimensions,
 310     FormatError,
 311 }
 312
 313 pub fn alloc_video_buffer(vinfo: NAVideoInfo, align: u8) -> Result<NABufferType, AllocatorError> {
 314     let fmt = &vinfo.format;
 315     let mut new_size: usize = 0;
 316     let mut offs:    Vec<usize> = Vec::new();
 317     let mut strides: Vec<usize> = Vec::new();
 318
 319     for i in 0..fmt.get_num_comp() {
 320         if fmt.get_chromaton(i) == None { return Err(AllocatorError::FormatError); }
 321     }
 322
 323     let align_mod = ((1 << align) as usize) - 1;
 324     let width  = ((vinfo.width  as usize) + align_mod) & !align_mod;
 325     let height = ((vinfo.height as usize) + align_mod) & !align_mod;
 326     let mut max_depth = 0;
 327     let mut all_packed = true;
 328     let mut all_bytealigned = true;
 329     for i in 0..fmt.get_num_comp() {
 330         let ochr = fmt.get_chromaton(i);
 331         if ochr.is_none() { continue; }
 332         let chr = ochr.unwrap();
 333         if !chr.is_packed() {
 334             all_packed = false;
 335         } else if ((chr.get_shift() + chr.get_depth()) & 7) != 0 {
 336             all_bytealigned = false;
 337         }
 338         max_depth = max(max_depth, chr.get_depth());
 339     }
 340     let unfit_elem_size = match fmt.get_elem_size() {
 341             2 | 4 => false,
 342             _ => true,
 343         };
 344
 345 //todo semi-packed like NV12
 346     if fmt.is_paletted() {
 347 //todo various-sized palettes?
 348         let stride = vinfo.get_format().get_chromaton(0).unwrap().get_linesize(width);
 349         let pic_sz = stride.checked_mul(height);
 350         if pic_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 351         let pal_size = 256 * (fmt.get_elem_size() as usize);
 352         let new_size = pic_sz.unwrap().checked_add(pal_size);
 353         if new_size == None { return Err(AllocatorError::TooLargeDimensions); }
 354         offs.push(0);
 355         offs.push(stride * height);
 356         strides.push(stride);
 357         let data: Vec<u8> = vec![0; new_size.unwrap()];
 358         let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 359         Ok(NABufferType::Video(buf.into_ref()))
 360     } else if !all_packed {
 361         for i in 0..fmt.get_num_comp() {
 362             let ochr = fmt.get_chromaton(i);
 363             if ochr.is_none() { continue; }
 364             let chr = ochr.unwrap();
 365             offs.push(new_size as usize);
 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             strides.push(stride);
 374         }
 375         if max_depth <= 8 {
 376             let data: Vec<u8> = vec![0; new_size];
 377             let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 378             Ok(NABufferType::Video(buf.into_ref()))
 379         } else if max_depth <= 16 {
 380             let data: Vec<u16> = vec![0; new_size];
 381             let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 382             Ok(NABufferType::Video16(buf.into_ref()))
 383         } else {
 384             let data: Vec<u32> = vec![0; new_size];
 385             let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 386             Ok(NABufferType::Video32(buf.into_ref()))
 387         }
 388     } else if all_bytealigned || unfit_elem_size {
 389         let elem_sz = fmt.get_elem_size();
 390         let line_sz = width.checked_mul(elem_sz as usize);
 391         if line_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 392         let new_sz = line_sz.unwrap().checked_mul(height);
 393         if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 394         new_size = new_sz.unwrap();
 395         let data: Vec<u8> = vec![0; new_size];
 396         strides.push(line_sz.unwrap());
 397         let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 398         Ok(NABufferType::VideoPacked(buf.into_ref()))
 399     } else {
 400         let elem_sz = fmt.get_elem_size();
 401         let new_sz = width.checked_mul(height);
 402         if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 403         new_size = new_sz.unwrap();
 404         match elem_sz {
 405             2 => {
 406                     let data: Vec<u16> = vec![0; new_size];
 407                     strides.push(width);
 408                     let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 409                     Ok(NABufferType::Video16(buf.into_ref()))
 410                 },
 411             4 => {
 412                     let data: Vec<u32> = vec![0; new_size];
 413                     strides.push(width);
 414                     let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 415                     Ok(NABufferType::Video32(buf.into_ref()))
 416                 },
 417             _ => unreachable!(),
 418         }
 419     }
 420 }
 421
 422 #[allow(clippy::collapsible_if)]
 423 pub fn alloc_audio_buffer(ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelMap) -> Result<NABufferType, AllocatorError> {
 424     let mut offs: Vec<usize> = Vec::new();
 425     if ainfo.format.is_planar() || (ainfo.channels == 1 && (ainfo.format.get_bits() % 8) == 0) {
 426         let len = nsamples.checked_mul(ainfo.channels as usize);
 427         if len == None { return Err(AllocatorError::TooLargeDimensions); }
 428         let length = len.unwrap();
 429         let stride = nsamples;
 430         for i in 0..ainfo.channels {
 431             offs.push((i as usize) * stride);
 432         }
 433         if ainfo.format.is_float() {
 434             if ainfo.format.get_bits() == 32 {
 435                 let data: Vec<f32> = vec![0.0; length];
 436                 let buf: NAAudioBuffer<f32> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples, stride };
 437                 Ok(NABufferType::AudioF32(buf))
 438             } else {
 439                 Err(AllocatorError::TooLargeDimensions)
 440             }
 441         } else {
 442             if ainfo.format.get_bits() == 8 && !ainfo.format.is_signed() {
 443                 let data: Vec<u8> = vec![0; length];
 444                 let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples, stride };
 445                 Ok(NABufferType::AudioU8(buf))
 446             } else if ainfo.format.get_bits() == 16 && ainfo.format.is_signed() {
 447                 let data: Vec<i16> = vec![0; length];
 448                 let buf: NAAudioBuffer<i16> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples, stride };
 449                 Ok(NABufferType::AudioI16(buf))
 450             } else {
 451                 Err(AllocatorError::TooLargeDimensions)
 452             }
 453         }
 454     } else {
 455         let len = nsamples.checked_mul(ainfo.channels as usize);
 456         if len == None { return Err(AllocatorError::TooLargeDimensions); }
 457         let length = ainfo.format.get_audio_size(len.unwrap() as u64);
 458         let data: Vec<u8> = vec![0; length];
 459         let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples, stride: 0 };
 460         Ok(NABufferType::AudioPacked(buf))
 461     }
 462 }
 463
 464 pub fn alloc_data_buffer(size: usize) -> Result<NABufferType, AllocatorError> {
 465     let data: Vec<u8> = vec![0; size];
 466     let buf: NABufferRef<Vec<u8>> = NABufferRef::new(data);
 467     Ok(NABufferType::Data(buf))
 468 }
 469
 470 pub fn copy_buffer(buf: NABufferType) -> NABufferType {
 471     buf.clone()
 472 }
 473
 474 pub struct NAVideoBufferPool<T:Copy> {
 475     pool:       Vec<NAVideoBufferRef<T>>,
 476     max_len:    usize,
 477     add_len:    usize,
 478 }
 479
 480 impl<T:Copy> NAVideoBufferPool<T> {
 481     pub fn new(max_len: usize) -> Self {
 482         Self {
 483             pool:       Vec::with_capacity(max_len),
 484             max_len,
 485             add_len: 0,
 486         }
 487     }
 488     pub fn set_dec_bufs(&mut self, add_len: usize) {
 489         self.add_len = add_len;
 490     }
 491     pub fn get_free(&mut self) -> Option<NAVideoBufferRef<T>> {
 492         for e in self.pool.iter() {
 493             if e.get_num_refs() == 1 {
 494                 return Some(e.clone());
 495             }
 496         }
 497         None
 498     }
 499     pub fn get_copy(&mut self, rbuf: &NAVideoBufferRef<T>) -> Option<NAVideoBufferRef<T>> {
 500         let mut dbuf = self.get_free()?;
 501         dbuf.data.copy_from_slice(&rbuf.data);
 502         Some(dbuf)
 503     }
 504     pub fn reset(&mut self) {
 505         self.pool.truncate(0);
 506     }
 507 }
 508
 509 impl NAVideoBufferPool<u8> {
 510     pub fn prealloc_video(&mut self, vinfo: NAVideoInfo, align: u8) -> Result<(), AllocatorError> {
 511         let nbufs = self.max_len + self.add_len - self.pool.len();
 512         for _ in 0..nbufs {
 513             let vbuf = alloc_video_buffer(vinfo, align)?;
 514             if let NABufferType::Video(buf) = vbuf {
 515                 self.pool.push(buf);
 516             } else if let NABufferType::VideoPacked(buf) = vbuf {
 517                 self.pool.push(buf);
 518             } else {
 519                 return Err(AllocatorError::FormatError);
 520             }
 521         }
 522         Ok(())
 523     }
 524 }
 525
 526 impl NAVideoBufferPool<u16> {
 527     pub fn prealloc_video(&mut self, vinfo: NAVideoInfo, align: u8) -> Result<(), AllocatorError> {
 528         let nbufs = self.max_len + self.add_len - self.pool.len();
 529         for _ in 0..nbufs {
 530             let vbuf = alloc_video_buffer(vinfo, align)?;
 531             if let NABufferType::Video16(buf) = vbuf {
 532                 self.pool.push(buf);
 533             } else {
 534                 return Err(AllocatorError::FormatError);
 535             }
 536         }
 537         Ok(())
 538     }
 539 }
 540
 541 impl NAVideoBufferPool<u32> {
 542     pub fn prealloc_video(&mut self, vinfo: NAVideoInfo, align: u8) -> Result<(), AllocatorError> {
 543         let nbufs = self.max_len + self.add_len - self.pool.len();
 544         for _ in 0..nbufs {
 545             let vbuf = alloc_video_buffer(vinfo, align)?;
 546             if let NABufferType::Video32(buf) = vbuf {
 547                 self.pool.push(buf);
 548             } else {
 549                 return Err(AllocatorError::FormatError);
 550             }
 551         }
 552         Ok(())
 553     }
 554 }
 555
 556 #[allow(dead_code)]
 557 #[derive(Clone)]
 558 pub struct NACodecInfo {
 559     name:       &'static str,
 560     properties: NACodecTypeInfo,
 561     extradata:  Option<Arc<Vec<u8>>>,
 562 }
 563
 564 pub type NACodecInfoRef = Arc<NACodecInfo>;
 565
 566 impl NACodecInfo {
 567     pub fn new(name: &'static str, p: NACodecTypeInfo, edata: Option<Vec<u8>>) -> Self {
 568         let extradata = match edata {
 569             None => None,
 570             Some(vec) => Some(Arc::new(vec)),
 571         };
 572         NACodecInfo { name, properties: p, extradata }
 573     }
 574     pub fn new_ref(name: &'static str, p: NACodecTypeInfo, edata: Option<Arc<Vec<u8>>>) -> Self {
 575         NACodecInfo { name, properties: p, extradata: edata }
 576     }
 577     pub fn into_ref(self) -> NACodecInfoRef { Arc::new(self) }
 578     pub fn get_properties(&self) -> NACodecTypeInfo { self.properties }
 579     pub fn get_extradata(&self) -> Option<Arc<Vec<u8>>> {
 580         if let Some(ref vec) = self.extradata { return Some(vec.clone()); }
 581         None
 582     }
 583     pub fn get_name(&self) -> &'static str { self.name }
 584     pub fn is_video(&self) -> bool {
 585         if let NACodecTypeInfo::Video(_) = self.properties { return true; }
 586         false
 587     }
 588     pub fn is_audio(&self) -> bool {
 589         if let NACodecTypeInfo::Audio(_) = self.properties { return true; }
 590         false
 591     }
 592     pub fn new_dummy() -> Arc<Self> {
 593         Arc::new(DUMMY_CODEC_INFO)
 594     }
 595     pub fn replace_info(&self, p: NACodecTypeInfo) -> Arc<Self> {
 596         Arc::new(NACodecInfo { name: self.name, properties: p, extradata: self.extradata.clone() })
 597     }
 598 }
 599
 600 impl Default for NACodecInfo {
 601     fn default() -> Self { DUMMY_CODEC_INFO }
 602 }
 603
 604 impl fmt::Display for NACodecInfo {
 605     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 606         let edata = match self.extradata.clone() {
 607             None => "no extradata".to_string(),
 608             Some(v) => format!("{} byte(s) of extradata", v.len()),
 609         };
 610         write!(f, "{}: {} {}", self.name, self.properties, edata)
 611     }
 612 }
 613
 614 pub const DUMMY_CODEC_INFO: NACodecInfo = NACodecInfo {
 615                                 name: "none",
 616                                 properties: NACodecTypeInfo::None,
 617                                 extradata: None };
 618
 619 #[derive(Debug,Clone)]
 620 pub enum NAValue {
 621     None,
 622     Int(i32),
 623     Long(i64),
 624     String(String),
 625     Data(Arc<Vec<u8>>),
 626 }
 627
 628 #[derive(Debug,Clone,Copy,PartialEq)]
 629 #[allow(dead_code)]
 630 pub enum FrameType {
 631     I,
 632     P,
 633     B,
 634     Skip,
 635     Other,
 636 }
 637
 638 impl fmt::Display for FrameType {
 639     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 640         match *self {
 641             FrameType::I => write!(f, "I"),
 642             FrameType::P => write!(f, "P"),
 643             FrameType::B => write!(f, "B"),
 644             FrameType::Skip => write!(f, "skip"),
 645             FrameType::Other => write!(f, "x"),
 646         }
 647     }
 648 }
 649
 650 #[derive(Debug,Clone,Copy)]
 651 pub struct NATimeInfo {
 652     pts:            Option<u64>,
 653     dts:            Option<u64>,
 654     duration:       Option<u64>,
 655     tb_num:         u32,
 656     tb_den:         u32,
 657 }
 658
 659 impl NATimeInfo {
 660     pub fn new(pts: Option<u64>, dts: Option<u64>, duration: Option<u64>, tb_num: u32, tb_den: u32) -> Self {
 661         NATimeInfo { pts, dts, duration, tb_num, tb_den }
 662     }
 663     pub fn get_pts(&self) -> Option<u64> { self.pts }
 664     pub fn get_dts(&self) -> Option<u64> { self.dts }
 665     pub fn get_duration(&self) -> Option<u64> { self.duration }
 666     pub fn set_pts(&mut self, pts: Option<u64>) { self.pts = pts; }
 667     pub fn set_dts(&mut self, dts: Option<u64>) { self.dts = dts; }
 668     pub fn set_duration(&mut self, dur: Option<u64>) { self.duration = dur; }
 669
 670     pub fn time_to_ts(time: u64, base: u64, tb_num: u32, tb_den: u32) -> u64 {
 671         let tb_num = tb_num as u64;
 672         let tb_den = tb_den as u64;
 673         let tmp = time.checked_mul(tb_num);
 674         if let Some(tmp) = tmp {
 675             tmp / base / tb_den
 676         } else {
 677             let tmp = time.checked_mul(tb_num);
 678             if let Some(tmp) = tmp {
 679                 tmp / base / tb_den
 680             } else {
 681                 let coarse = time / base;
 682                 let tmp = coarse.checked_mul(tb_num);
 683                 if let Some(tmp) = tmp {
 684                     tmp / tb_den
 685                 } else {
 686                     (coarse / tb_den) * tb_num
 687                 }
 688             }
 689         }
 690     }
 691     pub fn ts_to_time(ts: u64, base: u64, tb_num: u32, tb_den: u32) -> u64 {
 692         let tb_num = tb_num as u64;
 693         let tb_den = tb_den as u64;
 694         let tmp = ts.checked_mul(base);
 695         if let Some(tmp) = tmp {
 696             let tmp2 = tmp.checked_mul(tb_num);
 697             if let Some(tmp2) = tmp2 {
 698                 tmp2 / tb_den
 699             } else {
 700                 (tmp / tb_den) * tb_num
 701             }
 702         } else {
 703             let tmp = ts.checked_mul(tb_num);
 704             if let Some(tmp) = tmp {
 705                 (tmp / tb_den) * base
 706             } else {
 707                 (ts / tb_den) * base * tb_num
 708             }
 709         }
 710     }
 711 }
 712
 713 #[allow(dead_code)]
 714 #[derive(Clone)]
 715 pub struct NAFrame {
 716     ts:             NATimeInfo,
 717     id:             i64,
 718     buffer:         NABufferType,
 719     info:           NACodecInfoRef,
 720     ftype:          FrameType,
 721     key:            bool,
 722     options:        HashMap<String, NAValue>,
 723 }
 724
 725 pub type NAFrameRef = Arc<NAFrame>;
 726
 727 fn get_plane_size(info: &NAVideoInfo, idx: usize) -> (usize, usize) {
 728     let chromaton = info.get_format().get_chromaton(idx);
 729     if chromaton.is_none() { return (0, 0); }
 730     let (hs, vs) = chromaton.unwrap().get_subsampling();
 731     let w = (info.get_width()  + ((1 << hs) - 1)) >> hs;
 732     let h = (info.get_height() + ((1 << vs) - 1)) >> vs;
 733     (w, h)
 734 }
 735
 736 impl NAFrame {
 737     pub fn new(ts:             NATimeInfo,
 738                ftype:          FrameType,
 739                keyframe:       bool,
 740                info:           NACodecInfoRef,
 741                options:        HashMap<String, NAValue>,
 742                buffer:         NABufferType) -> Self {
 743         NAFrame { ts, id: 0, buffer, info, ftype, key: keyframe, options }
 744     }
 745     pub fn get_info(&self) -> NACodecInfoRef { self.info.clone() }
 746     pub fn get_frame_type(&self) -> FrameType { self.ftype }
 747     pub fn is_keyframe(&self) -> bool { self.key }
 748     pub fn set_frame_type(&mut self, ftype: FrameType) { self.ftype = ftype; }
 749     pub fn set_keyframe(&mut self, key: bool) { self.key = key; }
 750     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
 751     pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
 752     pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
 753     pub fn get_id(&self) -> i64 { self.id }
 754     pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
 755     pub fn set_pts(&mut self, pts: Option<u64>) { self.ts.set_pts(pts); }
 756     pub fn set_dts(&mut self, dts: Option<u64>) { self.ts.set_dts(dts); }
 757     pub fn set_id(&mut self, id: i64) { self.id = id; }
 758     pub fn set_duration(&mut self, dur: Option<u64>) { self.ts.set_duration(dur); }
 759
 760     pub fn get_buffer(&self) -> NABufferType { self.buffer.clone() }
 761
 762     pub fn into_ref(self) -> NAFrameRef { Arc::new(self) }
 763 }
 764
 765 impl fmt::Display for NAFrame {
 766     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 767         let mut ostr = format!("frame type {}", self.ftype);
 768         if let Some(pts) = self.ts.pts { ostr = format!("{} pts {}", ostr, pts); }
 769         if let Some(dts) = self.ts.dts { ostr = format!("{} dts {}", ostr, dts); }
 770         if let Some(dur) = self.ts.duration { ostr = format!("{} duration {}", ostr, dur); }
 771         if self.key { ostr = format!("{} kf", ostr); }
 772         write!(f, "[{}]", ostr)
 773     }
 774 }
 775
 776 /// Possible stream types.
 777 #[derive(Debug,Clone,Copy,PartialEq)]
 778 #[allow(dead_code)]
 779 pub enum StreamType {
 780     /// video stream
 781     Video,
 782     /// audio stream
 783     Audio,
 784     /// subtitles
 785     Subtitles,
 786     /// any data stream (or might be an unrecognized audio/video stream)
 787     Data,
 788     /// nonexistent stream
 789     None,
 790 }
 791
 792 impl fmt::Display for StreamType {
 793     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 794         match *self {
 795             StreamType::Video => write!(f, "Video"),
 796             StreamType::Audio => write!(f, "Audio"),
 797             StreamType::Subtitles => write!(f, "Subtitles"),
 798             StreamType::Data => write!(f, "Data"),
 799             StreamType::None => write!(f, "-"),
 800         }
 801     }
 802 }
 803
 804 #[allow(dead_code)]
 805 #[derive(Clone)]
 806 pub struct NAStream {
 807     media_type:     StreamType,
 808     id:             u32,
 809     num:            usize,
 810     info:           NACodecInfoRef,
 811     tb_num:         u32,
 812     tb_den:         u32,
 813 }
 814
 815 pub type NAStreamRef = Arc<NAStream>;
 816
 817 pub fn reduce_timebase(tb_num: u32, tb_den: u32) -> (u32, u32) {
 818     if tb_num == 0 { return (tb_num, tb_den); }
 819     if (tb_den % tb_num) == 0 { return (1, tb_den / tb_num); }
 820
 821     let mut a = tb_num;
 822     let mut b = tb_den;
 823
 824     while a != b {
 825         if a > b { a -= b; }
 826         else if b > a { b -= a; }
 827     }
 828
 829     (tb_num / a, tb_den / a)
 830 }
 831
 832 impl NAStream {
 833     pub fn new(mt: StreamType, id: u32, info: NACodecInfo, tb_num: u32, tb_den: u32) -> Self {
 834         let (n, d) = reduce_timebase(tb_num, tb_den);
 835         NAStream { media_type: mt, id, num: 0, info: info.into_ref(), tb_num: n, tb_den: d }
 836     }
 837     pub fn get_id(&self) -> u32 { self.id }
 838     pub fn get_media_type(&self) -> StreamType { self.media_type }
 839     pub fn get_num(&self) -> usize { self.num }
 840     pub fn set_num(&mut self, num: usize) { self.num = num; }
 841     pub fn get_info(&self) -> NACodecInfoRef { self.info.clone() }
 842     pub fn get_timebase(&self) -> (u32, u32) { (self.tb_num, self.tb_den) }
 843     pub fn set_timebase(&mut self, tb_num: u32, tb_den: u32) {
 844         let (n, d) = reduce_timebase(tb_num, tb_den);
 845         self.tb_num = n;
 846         self.tb_den = d;
 847     }
 848     pub fn into_ref(self) -> NAStreamRef { Arc::new(self) }
 849 }
 850
 851 impl fmt::Display for NAStream {
 852     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 853         write!(f, "({}#{} @ {}/{} - {})", self.media_type, self.id, self.tb_num, self.tb_den, self.info.get_properties())
 854     }
 855 }
 856
 857 #[allow(dead_code)]
 858 pub struct NAPacket {
 859     stream:         NAStreamRef,
 860     ts:             NATimeInfo,
 861     buffer:         NABufferRef<Vec<u8>>,
 862     keyframe:       bool,
 863 //    options:        HashMap<String, NAValue<'a>>,
 864 }
 865
 866 impl NAPacket {
 867     pub fn new(str: NAStreamRef, ts: NATimeInfo, kf: bool, vec: Vec<u8>) -> Self {
 868 //        let mut vec: Vec<u8> = Vec::new();
 869 //        vec.resize(size, 0);
 870         NAPacket { stream: str, ts, keyframe: kf, buffer: NABufferRef::new(vec) }
 871     }
 872     pub fn get_stream(&self) -> NAStreamRef { self.stream.clone() }
 873     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
 874     pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
 875     pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
 876     pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
 877     pub fn is_keyframe(&self) -> bool { self.keyframe }
 878     pub fn get_buffer(&self) -> NABufferRef<Vec<u8>> { self.buffer.clone() }
 879 }
 880
 881 impl Drop for NAPacket {
 882     fn drop(&mut self) {}
 883 }
 884
 885 impl fmt::Display for NAPacket {
 886     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 887         let mut ostr = format!("[pkt for {} size {}", self.stream, self.buffer.len());
 888         if let Some(pts) = self.ts.pts { ostr = format!("{} pts {}", ostr, pts); }
 889         if let Some(dts) = self.ts.dts { ostr = format!("{} dts {}", ostr, dts); }
 890         if let Some(dur) = self.ts.duration { ostr = format!("{} duration {}", ostr, dur); }
 891         if self.keyframe { ostr = format!("{} kf", ostr); }
 892         ostr += "]";
 893         write!(f, "{}", ostr)
 894     }
 895 }
 896
 897 pub trait FrameFromPacket {
 898     fn new_from_pkt(pkt: &NAPacket, info: NACodecInfoRef, buf: NABufferType) -> NAFrame;
 899     fn fill_timestamps(&mut self, pkt: &NAPacket);
 900 }
 901
 902 impl FrameFromPacket for NAFrame {
 903     fn new_from_pkt(pkt: &NAPacket, info: NACodecInfoRef, buf: NABufferType) -> NAFrame {
 904         NAFrame::new(pkt.ts, FrameType::Other, pkt.keyframe, info, HashMap::new(), buf)
 905     }
 906     fn fill_timestamps(&mut self, pkt: &NAPacket) {
 907         self.ts = pkt.get_time_information();
 908     }
 909 }
 910