nihav-core/src/frame.rs

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