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     pub sample_rate: u32,
  12     pub channels:    u8,
  13     pub format:      NASoniton,
  14     pub 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 }
 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().clone(), 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_audio_info(&self) -> Option<NAAudioInfo> {
 239         match *self {
 240             NABufferType::AudioU8(ref ab)     => Some(ab.get_info()),
 241             NABufferType::AudioI16(ref ab)    => Some(ab.get_info()),
 242             NABufferType::AudioI32(ref ab)    => Some(ab.get_info()),
 243             NABufferType::AudioF32(ref ab)    => Some(ab.get_info()),
 244             NABufferType::AudioPacked(ref ab) => Some(ab.get_info()),
 245             _ => None,
 246         }
 247     }
 248     pub fn get_chmap(&self) -> Option<&NAChannelMap> {
 249         match *self {
 250             NABufferType::AudioU8(ref ab)     => Some(ab.get_chmap()),
 251             NABufferType::AudioI16(ref ab)    => Some(ab.get_chmap()),
 252             NABufferType::AudioI32(ref ab)    => Some(ab.get_chmap()),
 253             NABufferType::AudioF32(ref ab)    => Some(ab.get_chmap()),
 254             NABufferType::AudioPacked(ref ab) => Some(ab.get_chmap()),
 255             _ => None,
 256         }
 257     }
 258     pub fn get_audio_length(&self) -> usize {
 259         match *self {
 260             NABufferType::AudioU8(ref ab)     => ab.get_length(),
 261             NABufferType::AudioI16(ref ab)    => ab.get_length(),
 262             NABufferType::AudioI32(ref ab)    => ab.get_length(),
 263             NABufferType::AudioF32(ref ab)    => ab.get_length(),
 264             NABufferType::AudioPacked(ref ab) => ab.get_length(),
 265             _ => 0,
 266         }
 267     }
 268     pub fn get_audio_stride(&self) -> usize {
 269         match *self {
 270             NABufferType::AudioU8(ref ab)     => ab.get_stride(),
 271             NABufferType::AudioI16(ref ab)    => ab.get_stride(),
 272             NABufferType::AudioI32(ref ab)    => ab.get_stride(),
 273             NABufferType::AudioF32(ref ab)    => ab.get_stride(),
 274             NABufferType::AudioPacked(ref ab) => ab.get_stride(),
 275             _ => 0,
 276         }
 277     }
 278     pub fn get_abuf_u8(&self) -> Option<NAAudioBuffer<u8>> {
 279         match *self {
 280             NABufferType::AudioU8(ref ab) => Some(ab.clone()),
 281             NABufferType::AudioPacked(ref ab) => Some(ab.clone()),
 282             _ => None,
 283         }
 284     }
 285     pub fn get_abuf_i16(&self) -> Option<NAAudioBuffer<i16>> {
 286         match *self {
 287             NABufferType::AudioI16(ref ab) => Some(ab.clone()),
 288             _ => None,
 289         }
 290     }
 291     pub fn get_abuf_i32(&self) -> Option<NAAudioBuffer<i32>> {
 292         match *self {
 293             NABufferType::AudioI32(ref ab) => Some(ab.clone()),
 294             _ => None,
 295         }
 296     }
 297     pub fn get_abuf_f32(&self) -> Option<NAAudioBuffer<f32>> {
 298         match *self {
 299             NABufferType::AudioF32(ref ab) => Some(ab.clone()),
 300             _ => None,
 301         }
 302     }
 303 }
 304
 305 const NA_SIMPLE_VFRAME_COMPONENTS: usize = 4;
 306 pub struct NASimpleVideoFrame<'a, T: Copy> {
 307     pub width:      [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 308     pub height:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 309     pub flip:       bool,
 310     pub stride:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 311     pub offset:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
 312     pub components: usize,
 313     pub data:       &'a mut [T],
 314 }
 315
 316 impl<'a, T:Copy> NASimpleVideoFrame<'a, T> {
 317     pub fn from_video_buf(vbuf: &'a mut NAVideoBuffer<T>) -> Option<Self> {
 318         let vinfo = vbuf.get_info();
 319         let components = vinfo.format.components as usize;
 320         if components > NA_SIMPLE_VFRAME_COMPONENTS {
 321             return None;
 322         }
 323         let mut w: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 324         let mut h: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 325         let mut s: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 326         let mut o: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
 327         for comp in 0..components {
 328             let (width, height) = vbuf.get_dimensions(comp);
 329             w[comp] = width;
 330             h[comp] = height;
 331             s[comp] = vbuf.get_stride(comp);
 332             o[comp] = vbuf.get_offset(comp);
 333         }
 334         let flip = vinfo.flipped;
 335         Some(NASimpleVideoFrame {
 336             width:  w,
 337             height: h,
 338             flip,
 339             stride: s,
 340             offset: o,
 341             components,
 342             data: vbuf.data.as_mut_slice(),
 343             })
 344     }
 345 }
 346
 347 #[derive(Debug,Clone,Copy,PartialEq)]
 348 pub enum AllocatorError {
 349     TooLargeDimensions,
 350     FormatError,
 351 }
 352
 353 pub fn alloc_video_buffer(vinfo: NAVideoInfo, align: u8) -> Result<NABufferType, AllocatorError> {
 354     let fmt = &vinfo.format;
 355     let mut new_size: usize = 0;
 356     let mut offs:    Vec<usize> = Vec::new();
 357     let mut strides: Vec<usize> = Vec::new();
 358
 359     for i in 0..fmt.get_num_comp() {
 360         if fmt.get_chromaton(i) == None { return Err(AllocatorError::FormatError); }
 361     }
 362
 363     let align_mod = ((1 << align) as usize) - 1;
 364     let width  = ((vinfo.width  as usize) + align_mod) & !align_mod;
 365     let height = ((vinfo.height as usize) + align_mod) & !align_mod;
 366     let mut max_depth = 0;
 367     let mut all_packed = true;
 368     let mut all_bytealigned = true;
 369     for i in 0..fmt.get_num_comp() {
 370         let ochr = fmt.get_chromaton(i);
 371         if ochr.is_none() { continue; }
 372         let chr = ochr.unwrap();
 373         if !chr.is_packed() {
 374             all_packed = false;
 375         } else if ((chr.get_shift() + chr.get_depth()) & 7) != 0 {
 376             all_bytealigned = false;
 377         }
 378         max_depth = max(max_depth, chr.get_depth());
 379     }
 380     let unfit_elem_size = match fmt.get_elem_size() {
 381             2 | 4 => false,
 382             _ => true,
 383         };
 384
 385 //todo semi-packed like NV12
 386     if fmt.is_paletted() {
 387 //todo various-sized palettes?
 388         let stride = vinfo.get_format().get_chromaton(0).unwrap().get_linesize(width);
 389         let pic_sz = stride.checked_mul(height);
 390         if pic_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 391         let pal_size = 256 * (fmt.get_elem_size() as usize);
 392         let new_size = pic_sz.unwrap().checked_add(pal_size);
 393         if new_size == None { return Err(AllocatorError::TooLargeDimensions); }
 394         offs.push(0);
 395         offs.push(stride * height);
 396         strides.push(stride);
 397         let data: Vec<u8> = vec![0; new_size.unwrap()];
 398         let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 399         Ok(NABufferType::Video(buf.into_ref()))
 400     } else if !all_packed {
 401         for i in 0..fmt.get_num_comp() {
 402             let ochr = fmt.get_chromaton(i);
 403             if ochr.is_none() { continue; }
 404             let chr = ochr.unwrap();
 405             offs.push(new_size as usize);
 406             let stride = chr.get_linesize(width);
 407             let cur_h = chr.get_height(height);
 408             let cur_sz = stride.checked_mul(cur_h);
 409             if cur_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 410             let new_sz = new_size.checked_add(cur_sz.unwrap());
 411             if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 412             new_size = new_sz.unwrap();
 413             strides.push(stride);
 414         }
 415         if max_depth <= 8 {
 416             let data: Vec<u8> = vec![0; new_size];
 417             let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 418             Ok(NABufferType::Video(buf.into_ref()))
 419         } else if max_depth <= 16 {
 420             let data: Vec<u16> = vec![0; new_size];
 421             let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 422             Ok(NABufferType::Video16(buf.into_ref()))
 423         } else {
 424             let data: Vec<u32> = vec![0; new_size];
 425             let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 426             Ok(NABufferType::Video32(buf.into_ref()))
 427         }
 428     } else if all_bytealigned || unfit_elem_size {
 429         let elem_sz = fmt.get_elem_size();
 430         let line_sz = width.checked_mul(elem_sz as usize);
 431         if line_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 432         let new_sz = line_sz.unwrap().checked_mul(height);
 433         if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 434         new_size = new_sz.unwrap();
 435         let data: Vec<u8> = vec![0; new_size];
 436         strides.push(line_sz.unwrap());
 437         let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 438         Ok(NABufferType::VideoPacked(buf.into_ref()))
 439     } else {
 440         let elem_sz = fmt.get_elem_size();
 441         let new_sz = width.checked_mul(height);
 442         if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
 443         new_size = new_sz.unwrap();
 444         match elem_sz {
 445             2 => {
 446                     let data: Vec<u16> = vec![0; new_size];
 447                     strides.push(width);
 448                     let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 449                     Ok(NABufferType::Video16(buf.into_ref()))
 450                 },
 451             4 => {
 452                     let data: Vec<u32> = vec![0; new_size];
 453                     strides.push(width);
 454                     let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs, strides };
 455                     Ok(NABufferType::Video32(buf.into_ref()))
 456                 },
 457             _ => unreachable!(),
 458         }
 459     }
 460 }
 461
 462 #[allow(clippy::collapsible_if)]
 463 pub fn alloc_audio_buffer(ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelMap) -> Result<NABufferType, AllocatorError> {
 464     let mut offs: Vec<usize> = Vec::new();
 465     if ainfo.format.is_planar() || (ainfo.channels == 1 && (ainfo.format.get_bits() % 8) == 0) {
 466         let len = nsamples.checked_mul(ainfo.channels as usize);
 467         if len == None { return Err(AllocatorError::TooLargeDimensions); }
 468         let length = len.unwrap();
 469         let stride = nsamples;
 470         for i in 0..ainfo.channels {
 471             offs.push((i as usize) * stride);
 472         }
 473         if ainfo.format.is_float() {
 474             if ainfo.format.get_bits() == 32 {
 475                 let data: Vec<f32> = vec![0.0; length];
 476                 let buf: NAAudioBuffer<f32> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples, stride };
 477                 Ok(NABufferType::AudioF32(buf))
 478             } else {
 479                 Err(AllocatorError::TooLargeDimensions)
 480             }
 481         } else {
 482             if ainfo.format.get_bits() == 8 && !ainfo.format.is_signed() {
 483                 let data: Vec<u8> = vec![0; length];
 484                 let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples, stride };
 485                 Ok(NABufferType::AudioU8(buf))
 486             } else if ainfo.format.get_bits() == 16 && ainfo.format.is_signed() {
 487                 let data: Vec<i16> = vec![0; length];
 488                 let buf: NAAudioBuffer<i16> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples, stride };
 489                 Ok(NABufferType::AudioI16(buf))
 490             } else {
 491                 Err(AllocatorError::TooLargeDimensions)
 492             }
 493         }
 494     } else {
 495         let len = nsamples.checked_mul(ainfo.channels as usize);
 496         if len == None { return Err(AllocatorError::TooLargeDimensions); }
 497         let length = ainfo.format.get_audio_size(len.unwrap() as u64);
 498         let data: Vec<u8> = vec![0; length];
 499         let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples, stride: 0 };
 500         Ok(NABufferType::AudioPacked(buf))
 501     }
 502 }
 503
 504 pub fn alloc_data_buffer(size: usize) -> Result<NABufferType, AllocatorError> {
 505     let data: Vec<u8> = vec![0; size];
 506     let buf: NABufferRef<Vec<u8>> = NABufferRef::new(data);
 507     Ok(NABufferType::Data(buf))
 508 }
 509
 510 pub fn copy_buffer(buf: NABufferType) -> NABufferType {
 511     buf.clone()
 512 }
 513
 514 pub struct NAVideoBufferPool<T:Copy> {
 515     pool:       Vec<NAVideoBufferRef<T>>,
 516     max_len:    usize,
 517     add_len:    usize,
 518 }
 519
 520 impl<T:Copy> NAVideoBufferPool<T> {
 521     pub fn new(max_len: usize) -> Self {
 522         Self {
 523             pool:       Vec::with_capacity(max_len),
 524             max_len,
 525             add_len: 0,
 526         }
 527     }
 528     pub fn set_dec_bufs(&mut self, add_len: usize) {
 529         self.add_len = add_len;
 530     }
 531     pub fn get_free(&mut self) -> Option<NAVideoBufferRef<T>> {
 532         for e in self.pool.iter() {
 533             if e.get_num_refs() == 1 {
 534                 return Some(e.clone());
 535             }
 536         }
 537         None
 538     }
 539     pub fn get_copy(&mut self, rbuf: &NAVideoBufferRef<T>) -> Option<NAVideoBufferRef<T>> {
 540         let mut dbuf = self.get_free()?;
 541         dbuf.data.copy_from_slice(&rbuf.data);
 542         Some(dbuf)
 543     }
 544     pub fn reset(&mut self) {
 545         self.pool.truncate(0);
 546     }
 547 }
 548
 549 impl NAVideoBufferPool<u8> {
 550     pub fn prealloc_video(&mut self, vinfo: NAVideoInfo, align: u8) -> Result<(), AllocatorError> {
 551         let nbufs = self.max_len + self.add_len - self.pool.len();
 552         for _ in 0..nbufs {
 553             let vbuf = alloc_video_buffer(vinfo, align)?;
 554             if let NABufferType::Video(buf) = vbuf {
 555                 self.pool.push(buf);
 556             } else if let NABufferType::VideoPacked(buf) = vbuf {
 557                 self.pool.push(buf);
 558             } else {
 559                 return Err(AllocatorError::FormatError);
 560             }
 561         }
 562         Ok(())
 563     }
 564 }
 565
 566 impl NAVideoBufferPool<u16> {
 567     pub fn prealloc_video(&mut self, vinfo: NAVideoInfo, align: u8) -> Result<(), AllocatorError> {
 568         let nbufs = self.max_len + self.add_len - self.pool.len();
 569         for _ in 0..nbufs {
 570             let vbuf = alloc_video_buffer(vinfo, align)?;
 571             if let NABufferType::Video16(buf) = vbuf {
 572                 self.pool.push(buf);
 573             } else {
 574                 return Err(AllocatorError::FormatError);
 575             }
 576         }
 577         Ok(())
 578     }
 579 }
 580
 581 impl NAVideoBufferPool<u32> {
 582     pub fn prealloc_video(&mut self, vinfo: NAVideoInfo, align: u8) -> Result<(), AllocatorError> {
 583         let nbufs = self.max_len + self.add_len - self.pool.len();
 584         for _ in 0..nbufs {
 585             let vbuf = alloc_video_buffer(vinfo, align)?;
 586             if let NABufferType::Video32(buf) = vbuf {
 587                 self.pool.push(buf);
 588             } else {
 589                 return Err(AllocatorError::FormatError);
 590             }
 591         }
 592         Ok(())
 593     }
 594 }
 595
 596 #[allow(dead_code)]
 597 #[derive(Clone)]
 598 pub struct NACodecInfo {
 599     name:       &'static str,
 600     properties: NACodecTypeInfo,
 601     extradata:  Option<Arc<Vec<u8>>>,
 602 }
 603
 604 pub type NACodecInfoRef = Arc<NACodecInfo>;
 605
 606 impl NACodecInfo {
 607     pub fn new(name: &'static str, p: NACodecTypeInfo, edata: Option<Vec<u8>>) -> Self {
 608         let extradata = match edata {
 609             None => None,
 610             Some(vec) => Some(Arc::new(vec)),
 611         };
 612         NACodecInfo { name, properties: p, extradata }
 613     }
 614     pub fn new_ref(name: &'static str, p: NACodecTypeInfo, edata: Option<Arc<Vec<u8>>>) -> Self {
 615         NACodecInfo { name, properties: p, extradata: edata }
 616     }
 617     pub fn into_ref(self) -> NACodecInfoRef { Arc::new(self) }
 618     pub fn get_properties(&self) -> NACodecTypeInfo { self.properties }
 619     pub fn get_extradata(&self) -> Option<Arc<Vec<u8>>> {
 620         if let Some(ref vec) = self.extradata { return Some(vec.clone()); }
 621         None
 622     }
 623     pub fn get_name(&self) -> &'static str { self.name }
 624     pub fn is_video(&self) -> bool {
 625         if let NACodecTypeInfo::Video(_) = self.properties { return true; }
 626         false
 627     }
 628     pub fn is_audio(&self) -> bool {
 629         if let NACodecTypeInfo::Audio(_) = self.properties { return true; }
 630         false
 631     }
 632     pub fn new_dummy() -> Arc<Self> {
 633         Arc::new(DUMMY_CODEC_INFO)
 634     }
 635     pub fn replace_info(&self, p: NACodecTypeInfo) -> Arc<Self> {
 636         Arc::new(NACodecInfo { name: self.name, properties: p, extradata: self.extradata.clone() })
 637     }
 638 }
 639
 640 impl Default for NACodecInfo {
 641     fn default() -> Self { DUMMY_CODEC_INFO }
 642 }
 643
 644 impl fmt::Display for NACodecInfo {
 645     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 646         let edata = match self.extradata.clone() {
 647             None => "no extradata".to_string(),
 648             Some(v) => format!("{} byte(s) of extradata", v.len()),
 649         };
 650         write!(f, "{}: {} {}", self.name, self.properties, edata)
 651     }
 652 }
 653
 654 pub const DUMMY_CODEC_INFO: NACodecInfo = NACodecInfo {
 655                                 name: "none",
 656                                 properties: NACodecTypeInfo::None,
 657                                 extradata: None };
 658
 659 #[derive(Debug,Clone)]
 660 pub enum NAValue {
 661     None,
 662     Int(i32),
 663     Long(i64),
 664     String(String),
 665     Data(Arc<Vec<u8>>),
 666 }
 667
 668 #[derive(Debug,Clone,Copy,PartialEq)]
 669 #[allow(dead_code)]
 670 pub enum FrameType {
 671     I,
 672     P,
 673     B,
 674     Skip,
 675     Other,
 676 }
 677
 678 impl fmt::Display for FrameType {
 679     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 680         match *self {
 681             FrameType::I => write!(f, "I"),
 682             FrameType::P => write!(f, "P"),
 683             FrameType::B => write!(f, "B"),
 684             FrameType::Skip => write!(f, "skip"),
 685             FrameType::Other => write!(f, "x"),
 686         }
 687     }
 688 }
 689
 690 #[derive(Debug,Clone,Copy)]
 691 pub struct NATimeInfo {
 692     pts:            Option<u64>,
 693     dts:            Option<u64>,
 694     duration:       Option<u64>,
 695     tb_num:         u32,
 696     tb_den:         u32,
 697 }
 698
 699 impl NATimeInfo {
 700     pub fn new(pts: Option<u64>, dts: Option<u64>, duration: Option<u64>, tb_num: u32, tb_den: u32) -> Self {
 701         NATimeInfo { pts, dts, duration, tb_num, tb_den }
 702     }
 703     pub fn get_pts(&self) -> Option<u64> { self.pts }
 704     pub fn get_dts(&self) -> Option<u64> { self.dts }
 705     pub fn get_duration(&self) -> Option<u64> { self.duration }
 706     pub fn set_pts(&mut self, pts: Option<u64>) { self.pts = pts; }
 707     pub fn set_dts(&mut self, dts: Option<u64>) { self.dts = dts; }
 708     pub fn set_duration(&mut self, dur: Option<u64>) { self.duration = dur; }
 709
 710     pub fn time_to_ts(time: u64, base: u64, tb_num: u32, tb_den: u32) -> u64 {
 711         let tb_num = tb_num as u64;
 712         let tb_den = tb_den as u64;
 713         let tmp = time.checked_mul(tb_num);
 714         if let Some(tmp) = tmp {
 715             tmp / base / tb_den
 716         } else {
 717             let tmp = time.checked_mul(tb_num);
 718             if let Some(tmp) = tmp {
 719                 tmp / base / tb_den
 720             } else {
 721                 let coarse = time / base;
 722                 let tmp = coarse.checked_mul(tb_num);
 723                 if let Some(tmp) = tmp {
 724                     tmp / tb_den
 725                 } else {
 726                     (coarse / tb_den) * tb_num
 727                 }
 728             }
 729         }
 730     }
 731     pub fn ts_to_time(ts: u64, base: u64, tb_num: u32, tb_den: u32) -> u64 {
 732         let tb_num = tb_num as u64;
 733         let tb_den = tb_den as u64;
 734         let tmp = ts.checked_mul(base);
 735         if let Some(tmp) = tmp {
 736             let tmp2 = tmp.checked_mul(tb_num);
 737             if let Some(tmp2) = tmp2 {
 738                 tmp2 / tb_den
 739             } else {
 740                 (tmp / tb_den) * tb_num
 741             }
 742         } else {
 743             let tmp = ts.checked_mul(tb_num);
 744             if let Some(tmp) = tmp {
 745                 (tmp / tb_den) * base
 746             } else {
 747                 (ts / tb_den) * base * tb_num
 748             }
 749         }
 750     }
 751 }
 752
 753 #[allow(dead_code)]
 754 #[derive(Clone)]
 755 pub struct NAFrame {
 756     ts:             NATimeInfo,
 757     id:             i64,
 758     buffer:         NABufferType,
 759     info:           NACodecInfoRef,
 760     ftype:          FrameType,
 761     key:            bool,
 762     options:        HashMap<String, NAValue>,
 763 }
 764
 765 pub type NAFrameRef = Arc<NAFrame>;
 766
 767 fn get_plane_size(info: &NAVideoInfo, idx: usize) -> (usize, usize) {
 768     let chromaton = info.get_format().get_chromaton(idx);
 769     if chromaton.is_none() { return (0, 0); }
 770     let (hs, vs) = chromaton.unwrap().get_subsampling();
 771     let w = (info.get_width()  + ((1 << hs) - 1)) >> hs;
 772     let h = (info.get_height() + ((1 << vs) - 1)) >> vs;
 773     (w, h)
 774 }
 775
 776 impl NAFrame {
 777     pub fn new(ts:             NATimeInfo,
 778                ftype:          FrameType,
 779                keyframe:       bool,
 780                info:           NACodecInfoRef,
 781                options:        HashMap<String, NAValue>,
 782                buffer:         NABufferType) -> Self {
 783         NAFrame { ts, id: 0, buffer, info, ftype, key: keyframe, options }
 784     }
 785     pub fn get_info(&self) -> NACodecInfoRef { self.info.clone() }
 786     pub fn get_frame_type(&self) -> FrameType { self.ftype }
 787     pub fn is_keyframe(&self) -> bool { self.key }
 788     pub fn set_frame_type(&mut self, ftype: FrameType) { self.ftype = ftype; }
 789     pub fn set_keyframe(&mut self, key: bool) { self.key = key; }
 790     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
 791     pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
 792     pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
 793     pub fn get_id(&self) -> i64 { self.id }
 794     pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
 795     pub fn set_pts(&mut self, pts: Option<u64>) { self.ts.set_pts(pts); }
 796     pub fn set_dts(&mut self, dts: Option<u64>) { self.ts.set_dts(dts); }
 797     pub fn set_id(&mut self, id: i64) { self.id = id; }
 798     pub fn set_duration(&mut self, dur: Option<u64>) { self.ts.set_duration(dur); }
 799
 800     pub fn get_buffer(&self) -> NABufferType { self.buffer.clone() }
 801
 802     pub fn into_ref(self) -> NAFrameRef { Arc::new(self) }
 803 }
 804
 805 impl fmt::Display for NAFrame {
 806     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 807         let mut ostr = format!("frame type {}", self.ftype);
 808         if let Some(pts) = self.ts.pts { ostr = format!("{} pts {}", ostr, pts); }
 809         if let Some(dts) = self.ts.dts { ostr = format!("{} dts {}", ostr, dts); }
 810         if let Some(dur) = self.ts.duration { ostr = format!("{} duration {}", ostr, dur); }
 811         if self.key { ostr = format!("{} kf", ostr); }
 812         write!(f, "[{}]", ostr)
 813     }
 814 }
 815
 816 /// Possible stream types.
 817 #[derive(Debug,Clone,Copy,PartialEq)]
 818 #[allow(dead_code)]
 819 pub enum StreamType {
 820     /// video stream
 821     Video,
 822     /// audio stream
 823     Audio,
 824     /// subtitles
 825     Subtitles,
 826     /// any data stream (or might be an unrecognized audio/video stream)
 827     Data,
 828     /// nonexistent stream
 829     None,
 830 }
 831
 832 impl fmt::Display for StreamType {
 833     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 834         match *self {
 835             StreamType::Video => write!(f, "Video"),
 836             StreamType::Audio => write!(f, "Audio"),
 837             StreamType::Subtitles => write!(f, "Subtitles"),
 838             StreamType::Data => write!(f, "Data"),
 839             StreamType::None => write!(f, "-"),
 840         }
 841     }
 842 }
 843
 844 #[allow(dead_code)]
 845 #[derive(Clone)]
 846 pub struct NAStream {
 847     media_type:     StreamType,
 848     id:             u32,
 849     num:            usize,
 850     info:           NACodecInfoRef,
 851     tb_num:         u32,
 852     tb_den:         u32,
 853 }
 854
 855 pub type NAStreamRef = Arc<NAStream>;
 856
 857 pub fn reduce_timebase(tb_num: u32, tb_den: u32) -> (u32, u32) {
 858     if tb_num == 0 { return (tb_num, tb_den); }
 859     if (tb_den % tb_num) == 0 { return (1, tb_den / tb_num); }
 860
 861     let mut a = tb_num;
 862     let mut b = tb_den;
 863
 864     while a != b {
 865         if a > b { a -= b; }
 866         else if b > a { b -= a; }
 867     }
 868
 869     (tb_num / a, tb_den / a)
 870 }
 871
 872 impl NAStream {
 873     pub fn new(mt: StreamType, id: u32, info: NACodecInfo, tb_num: u32, tb_den: u32) -> Self {
 874         let (n, d) = reduce_timebase(tb_num, tb_den);
 875         NAStream { media_type: mt, id, num: 0, info: info.into_ref(), tb_num: n, tb_den: d }
 876     }
 877     pub fn get_id(&self) -> u32 { self.id }
 878     pub fn get_media_type(&self) -> StreamType { self.media_type }
 879     pub fn get_num(&self) -> usize { self.num }
 880     pub fn set_num(&mut self, num: usize) { self.num = num; }
 881     pub fn get_info(&self) -> NACodecInfoRef { self.info.clone() }
 882     pub fn get_timebase(&self) -> (u32, u32) { (self.tb_num, self.tb_den) }
 883     pub fn set_timebase(&mut self, tb_num: u32, tb_den: u32) {
 884         let (n, d) = reduce_timebase(tb_num, tb_den);
 885         self.tb_num = n;
 886         self.tb_den = d;
 887     }
 888     pub fn into_ref(self) -> NAStreamRef { Arc::new(self) }
 889 }
 890
 891 impl fmt::Display for NAStream {
 892     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 893         write!(f, "({}#{} @ {}/{} - {})", self.media_type, self.id, self.tb_num, self.tb_den, self.info.get_properties())
 894     }
 895 }
 896
 897 #[allow(dead_code)]
 898 pub struct NAPacket {
 899     stream:         NAStreamRef,
 900     ts:             NATimeInfo,
 901     buffer:         NABufferRef<Vec<u8>>,
 902     keyframe:       bool,
 903 //    options:        HashMap<String, NAValue<'a>>,
 904 }
 905
 906 impl NAPacket {
 907     pub fn new(str: NAStreamRef, ts: NATimeInfo, kf: bool, vec: Vec<u8>) -> Self {
 908 //        let mut vec: Vec<u8> = Vec::new();
 909 //        vec.resize(size, 0);
 910         NAPacket { stream: str, ts, keyframe: kf, buffer: NABufferRef::new(vec) }
 911     }
 912     pub fn get_stream(&self) -> NAStreamRef { self.stream.clone() }
 913     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
 914     pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
 915     pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
 916     pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
 917     pub fn is_keyframe(&self) -> bool { self.keyframe }
 918     pub fn get_buffer(&self) -> NABufferRef<Vec<u8>> { self.buffer.clone() }
 919 }
 920
 921 impl Drop for NAPacket {
 922     fn drop(&mut self) {}
 923 }
 924
 925 impl fmt::Display for NAPacket {
 926     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 927         let mut ostr = format!("[pkt for {} size {}", self.stream, self.buffer.len());
 928         if let Some(pts) = self.ts.pts { ostr = format!("{} pts {}", ostr, pts); }
 929         if let Some(dts) = self.ts.dts { ostr = format!("{} dts {}", ostr, dts); }
 930         if let Some(dur) = self.ts.duration { ostr = format!("{} duration {}", ostr, dur); }
 931         if self.keyframe { ostr = format!("{} kf", ostr); }
 932         ostr += "]";
 933         write!(f, "{}", ostr)
 934     }
 935 }
 936
 937 pub trait FrameFromPacket {
 938     fn new_from_pkt(pkt: &NAPacket, info: NACodecInfoRef, buf: NABufferType) -> NAFrame;
 939     fn fill_timestamps(&mut self, pkt: &NAPacket);
 940 }
 941
 942 impl FrameFromPacket for NAFrame {
 943     fn new_from_pkt(pkt: &NAPacket, info: NACodecInfoRef, buf: NABufferType) -> NAFrame {
 944         NAFrame::new(pkt.ts, FrameType::Other, pkt.keyframe, info, HashMap::new(), buf)
 945     }
 946     fn fill_timestamps(&mut self, pkt: &NAPacket) {
 947         self.ts = pkt.get_time_information();
 948     }
 949 }
 950