-use std::cmp::max;
-use std::collections::HashMap;
-use std::fmt;
-use std::rc::Rc;
-use std::cell::*;
-use formats::*;
-
-#[allow(dead_code)]
-#[derive(Clone,Copy,PartialEq)]
-pub struct NAAudioInfo {
- sample_rate: u32,
- channels: u8,
- format: NASoniton,
- block_len: usize,
-}
-
-impl NAAudioInfo {
- pub fn new(sr: u32, ch: u8, fmt: NASoniton, bl: usize) -> Self {
- NAAudioInfo { sample_rate: sr, channels: ch, format: fmt, block_len: bl }
- }
- pub fn get_sample_rate(&self) -> u32 { self.sample_rate }
- pub fn get_channels(&self) -> u8 { self.channels }
- pub fn get_format(&self) -> NASoniton { self.format }
- pub fn get_block_len(&self) -> usize { self.block_len }
-}
-
-impl fmt::Display for NAAudioInfo {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- write!(f, "{} Hz, {} ch", self.sample_rate, self.channels)
- }
-}
-
-#[allow(dead_code)]
-#[derive(Clone,Copy,PartialEq)]
-pub struct NAVideoInfo {
- width: usize,
- height: usize,
- flipped: bool,
- format: NAPixelFormaton,
-}
-
-impl NAVideoInfo {
- pub fn new(w: usize, h: usize, flip: bool, fmt: NAPixelFormaton) -> Self {
- NAVideoInfo { width: w, height: h, flipped: flip, format: fmt }
- }
- pub fn get_width(&self) -> usize { self.width as usize }
- pub fn get_height(&self) -> usize { self.height as usize }
- pub fn is_flipped(&self) -> bool { self.flipped }
- pub fn get_format(&self) -> NAPixelFormaton { self.format }
- pub fn set_width(&mut self, w: usize) { self.width = w; }
- pub fn set_height(&mut self, h: usize) { self.height = h; }
-}
-
-impl fmt::Display for NAVideoInfo {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- write!(f, "{}x{}", self.width, self.height)
- }
-}
-
-#[derive(Clone,Copy,PartialEq)]
-pub enum NACodecTypeInfo {
- None,
- Audio(NAAudioInfo),
- Video(NAVideoInfo),
-}
-
-impl NACodecTypeInfo {
- pub fn get_video_info(&self) -> Option<NAVideoInfo> {
- match *self {
- NACodecTypeInfo::Video(vinfo) => Some(vinfo),
- _ => None,
- }
- }
- pub fn get_audio_info(&self) -> Option<NAAudioInfo> {
- match *self {
- NACodecTypeInfo::Audio(ainfo) => Some(ainfo),
- _ => None,
- }
- }
- pub fn is_video(&self) -> bool {
- match *self {
- NACodecTypeInfo::Video(_) => true,
- _ => false,
- }
- }
- pub fn is_audio(&self) -> bool {
- match *self {
- NACodecTypeInfo::Audio(_) => true,
- _ => false,
- }
- }
-}
-
-impl fmt::Display for NACodecTypeInfo {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- let ret = match *self {
- NACodecTypeInfo::None => format!(""),
- NACodecTypeInfo::Audio(fmt) => format!("{}", fmt),
- NACodecTypeInfo::Video(fmt) => format!("{}", fmt),
- };
- write!(f, "{}", ret)
- }
-}
-
-pub type NABufferRefT<T> = Rc<RefCell<Vec<T>>>;
-
-#[derive(Clone)]
-pub struct NAVideoBuffer<T> {
- info: NAVideoInfo,
- data: NABufferRefT<T>,
- offs: Vec<usize>,
- strides: Vec<usize>,
-}
-
-impl<T: Clone> NAVideoBuffer<T> {
- pub fn get_offset(&self, idx: usize) -> usize {
- if idx >= self.offs.len() { 0 }
- else { self.offs[idx] }
- }
- pub fn get_info(&self) -> NAVideoInfo { self.info }
- pub fn get_data(&self) -> Ref<Vec<T>> { self.data.borrow() }
- pub fn get_data_mut(&mut self) -> RefMut<Vec<T>> { self.data.borrow_mut() }
- pub fn copy_buffer(&mut self) -> Self {
- let mut data: Vec<T> = Vec::with_capacity(self.data.borrow().len());
- data.clone_from(self.data.borrow().as_ref());
- let mut offs: Vec<usize> = Vec::with_capacity(self.offs.len());
- offs.clone_from(&self.offs);
- let mut strides: Vec<usize> = Vec::with_capacity(self.strides.len());
- strides.clone_from(&self.strides);
- NAVideoBuffer { info: self.info, data: Rc::new(RefCell::new(data)), offs: offs, strides: strides }
- }
- pub fn get_stride(&self, idx: usize) -> usize {
- if idx >= self.strides.len() { return 0; }
- self.strides[idx]
- }
- pub fn get_dimensions(&self, idx: usize) -> (usize, usize) {
- get_plane_size(&self.info, idx)
- }
-}
-
-#[derive(Clone)]
-pub struct NAAudioBuffer<T> {
- info: NAAudioInfo,
- data: NABufferRefT<T>,
- offs: Vec<usize>,
- chmap: NAChannelMap,
- len: usize,
-}
-
-impl<T: Clone> NAAudioBuffer<T> {
- pub fn get_offset(&self, idx: usize) -> usize {
- if idx >= self.offs.len() { 0 }
- else { self.offs[idx] }
- }
- pub fn get_info(&self) -> NAAudioInfo { self.info }
- pub fn get_chmap(&self) -> NAChannelMap { self.chmap.clone() }
- pub fn get_data(&self) -> Ref<Vec<T>> { self.data.borrow() }
- pub fn get_data_mut(&mut self) -> RefMut<Vec<T>> { self.data.borrow_mut() }
- pub fn copy_buffer(&mut self) -> Self {
- let mut data: Vec<T> = Vec::with_capacity(self.data.borrow().len());
- data.clone_from(self.data.borrow().as_ref());
- let mut offs: Vec<usize> = Vec::with_capacity(self.offs.len());
- offs.clone_from(&self.offs);
- NAAudioBuffer { info: self.info, data: Rc::new(RefCell::new(data)), offs: offs, chmap: self.get_chmap(), len: self.len }
- }
- pub fn get_length(&self) -> usize { self.len }
-}
-
-impl NAAudioBuffer<u8> {
- pub fn new_from_buf(info: NAAudioInfo, data: NABufferRefT<u8>, chmap: NAChannelMap) -> Self {
- let len = data.borrow().len();
- NAAudioBuffer { info: info, data: data, chmap: chmap, offs: Vec::new(), len: len }
- }
-}
-
-#[derive(Clone)]
-pub enum NABufferType {
- Video (NAVideoBuffer<u8>),
- Video16 (NAVideoBuffer<u16>),
- VideoPacked(NAVideoBuffer<u8>),
- AudioU8 (NAAudioBuffer<u8>),
- AudioI16 (NAAudioBuffer<i16>),
- AudioI32 (NAAudioBuffer<i32>),
- AudioF32 (NAAudioBuffer<f32>),
- AudioPacked(NAAudioBuffer<u8>),
- Data (NABufferRefT<u8>),
- None,
-}
-
-impl NABufferType {
- pub fn get_offset(&self, idx: usize) -> usize {
- match *self {
- NABufferType::Video(ref vb) => vb.get_offset(idx),
- NABufferType::Video16(ref vb) => vb.get_offset(idx),
- NABufferType::VideoPacked(ref vb) => vb.get_offset(idx),
- NABufferType::AudioU8(ref ab) => ab.get_offset(idx),
- NABufferType::AudioI16(ref ab) => ab.get_offset(idx),
- NABufferType::AudioF32(ref ab) => ab.get_offset(idx),
- NABufferType::AudioPacked(ref ab) => ab.get_offset(idx),
- _ => 0,
- }
- }
- pub fn get_vbuf(&mut self) -> Option<NAVideoBuffer<u8>> {
- match *self {
- NABufferType::Video(ref vb) => Some(vb.clone()),
- NABufferType::VideoPacked(ref vb) => Some(vb.clone()),
- _ => None,
- }
- }
- pub fn get_vbuf16(&mut self) -> Option<NAVideoBuffer<u16>> {
- match *self {
- NABufferType::Video16(ref vb) => Some(vb.clone()),
- _ => None,
- }
- }
- pub fn get_abuf_u8(&mut self) -> Option<NAAudioBuffer<u8>> {
- match *self {
- NABufferType::AudioU8(ref ab) => Some(ab.clone()),
- NABufferType::AudioPacked(ref ab) => Some(ab.clone()),
- _ => None,
- }
- }
- pub fn get_abuf_i16(&mut self) -> Option<NAAudioBuffer<i16>> {
- match *self {
- NABufferType::AudioI16(ref ab) => Some(ab.clone()),
- _ => None,
- }
- }
- pub fn get_abuf_i32(&mut self) -> Option<NAAudioBuffer<i32>> {
- match *self {
- NABufferType::AudioI32(ref ab) => Some(ab.clone()),
- _ => None,
- }
- }
- pub fn get_abuf_f32(&mut self) -> Option<NAAudioBuffer<f32>> {
- match *self {
- NABufferType::AudioF32(ref ab) => Some(ab.clone()),
- _ => None,
- }
- }
-}
-
-#[derive(Debug,Clone,Copy,PartialEq)]
-pub enum AllocatorError {
- TooLargeDimensions,
- FormatError,
-}
-
-pub fn alloc_video_buffer(vinfo: NAVideoInfo, align: u8) -> Result<NABufferType, AllocatorError> {
- let fmt = &vinfo.format;
- let mut new_size: usize = 0;
- let mut offs: Vec<usize> = Vec::new();
- let mut strides: Vec<usize> = Vec::new();
-
- for i in 0..fmt.get_num_comp() {
- if fmt.get_chromaton(i) == None { return Err(AllocatorError::FormatError); }
- }
-
- let align_mod = ((1 << align) as usize) - 1;
- let width = ((vinfo.width as usize) + align_mod) & !align_mod;
- let height = ((vinfo.height as usize) + align_mod) & !align_mod;
- let mut max_depth = 0;
- let mut all_packed = true;
- for i in 0..fmt.get_num_comp() {
- let ochr = fmt.get_chromaton(i);
- if let None = ochr { continue; }
- let chr = ochr.unwrap();
- if !chr.is_packed() {
- all_packed = false;
- break;
- }
- max_depth = max(max_depth, chr.get_depth());
- }
-
-//todo semi-packed like NV12
- if fmt.is_paletted() {
-//todo various-sized palettes?
- let stride = vinfo.get_format().get_chromaton(0).unwrap().get_linesize(width);
- let pic_sz = stride.checked_mul(height);
- if pic_sz == None { return Err(AllocatorError::TooLargeDimensions); }
- let pal_size = 256 * (fmt.get_elem_size() as usize);
- let new_size = pic_sz.unwrap().checked_add(pal_size);
- if new_size == None { return Err(AllocatorError::TooLargeDimensions); }
- offs.push(0);
- offs.push(stride * height);
- strides.push(stride);
- let mut data: Vec<u8> = Vec::with_capacity(new_size.unwrap());
- data.resize(new_size.unwrap(), 0);
- let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: Rc::new(RefCell::new(data)), info: vinfo, offs: offs, strides: strides };
- Ok(NABufferType::Video(buf))
- } else if !all_packed {
- for i in 0..fmt.get_num_comp() {
- let ochr = fmt.get_chromaton(i);
- if let None = ochr { continue; }
- let chr = ochr.unwrap();
- if !vinfo.is_flipped() {
- offs.push(new_size as usize);
- }
- let stride = chr.get_linesize(width);
- let cur_h = chr.get_height(height);
- let cur_sz = stride.checked_mul(cur_h);
- if cur_sz == None { return Err(AllocatorError::TooLargeDimensions); }
- let new_sz = new_size.checked_add(cur_sz.unwrap());
- if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
- new_size = new_sz.unwrap();
- if vinfo.is_flipped() {
- offs.push(new_size as usize);
- }
- strides.push(stride);
- }
- if max_depth <= 8 {
- let mut data: Vec<u8> = Vec::with_capacity(new_size);
- data.resize(new_size, 0);
- let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: Rc::new(RefCell::new(data)), info: vinfo, offs: offs, strides: strides };
- Ok(NABufferType::Video(buf))
- } else {
- let mut data: Vec<u16> = Vec::with_capacity(new_size);
- data.resize(new_size, 0);
- let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: Rc::new(RefCell::new(data)), info: vinfo, offs: offs, strides: strides };
- Ok(NABufferType::Video16(buf))
- }
- } else {
- let elem_sz = fmt.get_elem_size();
- let line_sz = width.checked_mul(elem_sz as usize);
- if line_sz == None { return Err(AllocatorError::TooLargeDimensions); }
- let new_sz = line_sz.unwrap().checked_mul(height);
- if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
- new_size = new_sz.unwrap();
- let mut data: Vec<u8> = Vec::with_capacity(new_size);
- data.resize(new_size, 0);
- strides.push(line_sz.unwrap());
- let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: Rc::new(RefCell::new(data)), info: vinfo, offs: offs, strides: strides };
- Ok(NABufferType::VideoPacked(buf))
- }
-}
-
-pub fn alloc_audio_buffer(ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelMap) -> Result<NABufferType, AllocatorError> {
- let mut offs: Vec<usize> = Vec::new();
- if ainfo.format.is_planar() {
- let len = nsamples.checked_mul(ainfo.channels as usize);
- if len == None { return Err(AllocatorError::TooLargeDimensions); }
- let length = len.unwrap();
- for i in 0..ainfo.channels {
- offs.push((i as usize) * nsamples);
- }
- if ainfo.format.is_float() {
- if ainfo.format.get_bits() == 32 {
- let mut data: Vec<f32> = Vec::with_capacity(length);
- data.resize(length, 0.0);
- let buf: NAAudioBuffer<f32> = NAAudioBuffer { data: Rc::new(RefCell::new(data)), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
- Ok(NABufferType::AudioF32(buf))
- } else {
- Err(AllocatorError::TooLargeDimensions)
- }
- } else {
- if ainfo.format.get_bits() == 8 && !ainfo.format.is_signed() {
- let mut data: Vec<u8> = Vec::with_capacity(length);
- data.resize(length, 0);
- let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: Rc::new(RefCell::new(data)), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
- Ok(NABufferType::AudioU8(buf))
- } else if ainfo.format.get_bits() == 16 && ainfo.format.is_signed() {
- let mut data: Vec<i16> = Vec::with_capacity(length);
- data.resize(length, 0);
- let buf: NAAudioBuffer<i16> = NAAudioBuffer { data: Rc::new(RefCell::new(data)), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
- Ok(NABufferType::AudioI16(buf))
- } else {
- Err(AllocatorError::TooLargeDimensions)
- }
- }
- } else {
- let len = nsamples.checked_mul(ainfo.channels as usize);
- if len == None { return Err(AllocatorError::TooLargeDimensions); }
- let length = ainfo.format.get_audio_size(len.unwrap() as u64);
- let mut data: Vec<u8> = Vec::with_capacity(length);
- data.resize(length, 0);
- let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: Rc::new(RefCell::new(data)), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
- Ok(NABufferType::AudioPacked(buf))
- }
-}
-
-pub fn alloc_data_buffer(size: usize) -> Result<NABufferType, AllocatorError> {
- let mut data: Vec<u8> = Vec::with_capacity(size);
- data.resize(size, 0);
- let buf: NABufferRefT<u8> = Rc::new(RefCell::new(data));
- Ok(NABufferType::Data(buf))
-}
-
-pub fn copy_buffer(buf: NABufferType) -> NABufferType {
- buf.clone()
-}
-
-#[allow(dead_code)]
-#[derive(Clone)]
-pub struct NACodecInfo {
- name: &'static str,
- properties: NACodecTypeInfo,
- extradata: Option<Rc<Vec<u8>>>,
-}
-
-impl NACodecInfo {
- pub fn new(name: &'static str, p: NACodecTypeInfo, edata: Option<Vec<u8>>) -> Self {
- let extradata = match edata {
- None => None,
- Some(vec) => Some(Rc::new(vec)),
- };
- NACodecInfo { name: name, properties: p, extradata: extradata }
- }
- pub fn new_ref(name: &'static str, p: NACodecTypeInfo, edata: Option<Rc<Vec<u8>>>) -> Self {
- NACodecInfo { name: name, properties: p, extradata: edata }
- }
- pub fn get_properties(&self) -> NACodecTypeInfo { self.properties }
- pub fn get_extradata(&self) -> Option<Rc<Vec<u8>>> {
- if let Some(ref vec) = self.extradata { return Some(vec.clone()); }
- None
- }
- pub fn get_name(&self) -> &'static str { self.name }
- pub fn is_video(&self) -> bool {
- if let NACodecTypeInfo::Video(_) = self.properties { return true; }
- false
- }
- pub fn is_audio(&self) -> bool {
- if let NACodecTypeInfo::Audio(_) = self.properties { return true; }
- false
- }
- pub fn new_dummy() -> Rc<Self> {
- Rc::new(DUMMY_CODEC_INFO)
- }
- pub fn replace_info(&self, p: NACodecTypeInfo) -> Rc<Self> {
- Rc::new(NACodecInfo { name: self.name, properties: p, extradata: self.extradata.clone() })
- }
-}
-
-impl fmt::Display for NACodecInfo {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- let edata = match self.extradata.clone() {
- None => format!("no extradata"),
- Some(v) => format!("{} byte(s) of extradata", v.len()),
- };
- write!(f, "{}: {} {}", self.name, self.properties, edata)
- }
-}
-
-pub const DUMMY_CODEC_INFO: NACodecInfo = NACodecInfo {
- name: "none",
- properties: NACodecTypeInfo::None,
- extradata: None };
-
-#[derive(Debug,Clone)]
-pub enum NAValue {
- None,
- Int(i32),
- Long(i64),
- String(String),
- Data(Rc<Vec<u8>>),
-}
-
-#[derive(Debug,Clone,Copy,PartialEq)]
-#[allow(dead_code)]
-pub enum FrameType {
- I,
- P,
- B,
- Skip,
- Other,
-}
-
-impl fmt::Display for FrameType {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- match *self {
- FrameType::I => write!(f, "I"),
- FrameType::P => write!(f, "P"),
- FrameType::B => write!(f, "B"),
- FrameType::Skip => write!(f, "skip"),
- FrameType::Other => write!(f, "x"),
- }
- }
-}
-
-#[derive(Debug,Clone,Copy)]
-pub struct NATimeInfo {
- pts: Option<u64>,
- dts: Option<u64>,
- duration: Option<u64>,
- tb_num: u32,
- tb_den: u32,
-}
-
-impl NATimeInfo {
- pub fn new(pts: Option<u64>, dts: Option<u64>, duration: Option<u64>, tb_num: u32, tb_den: u32) -> Self {
- NATimeInfo { pts: pts, dts: dts, duration: duration, tb_num: tb_num, tb_den: tb_den }
- }
- pub fn get_pts(&self) -> Option<u64> { self.pts }
- pub fn get_dts(&self) -> Option<u64> { self.dts }
- pub fn get_duration(&self) -> Option<u64> { self.duration }
- pub fn set_pts(&mut self, pts: Option<u64>) { self.pts = pts; }
- pub fn set_dts(&mut self, dts: Option<u64>) { self.dts = dts; }
- pub fn set_duration(&mut self, dur: Option<u64>) { self.duration = dur; }
-}
-
-#[allow(dead_code)]
-#[derive(Clone)]
-pub struct NAFrame {
- ts: NATimeInfo,
- buffer: NABufferType,
- info: Rc<NACodecInfo>,
- ftype: FrameType,
- key: bool,
- options: HashMap<String, NAValue>,
-}
-
-pub type NAFrameRef = Rc<RefCell<NAFrame>>;
-
-fn get_plane_size(info: &NAVideoInfo, idx: usize) -> (usize, usize) {
- let chromaton = info.get_format().get_chromaton(idx);
- if let None = chromaton { return (0, 0); }
- let (hs, vs) = chromaton.unwrap().get_subsampling();
- let w = (info.get_width() + ((1 << hs) - 1)) >> hs;
- let h = (info.get_height() + ((1 << vs) - 1)) >> vs;
- (w, h)
-}
-
-impl NAFrame {
- pub fn new(ts: NATimeInfo,
- ftype: FrameType,
- keyframe: bool,
- info: Rc<NACodecInfo>,
- options: HashMap<String, NAValue>,
- buffer: NABufferType) -> Self {
- NAFrame { ts: ts, buffer: buffer, info: info, ftype: ftype, key: keyframe, options: options }
- }
- pub fn get_info(&self) -> Rc<NACodecInfo> { self.info.clone() }
- pub fn get_frame_type(&self) -> FrameType { self.ftype }
- pub fn is_keyframe(&self) -> bool { self.key }
- pub fn set_frame_type(&mut self, ftype: FrameType) { self.ftype = ftype; }
- pub fn set_keyframe(&mut self, key: bool) { self.key = key; }
- pub fn get_time_information(&self) -> NATimeInfo { self.ts }
- pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
- pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
- pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
- pub fn set_pts(&mut self, pts: Option<u64>) { self.ts.set_pts(pts); }
- pub fn set_dts(&mut self, dts: Option<u64>) { self.ts.set_dts(dts); }
- pub fn set_duration(&mut self, dur: Option<u64>) { self.ts.set_duration(dur); }
-
- pub fn get_buffer(&self) -> NABufferType { self.buffer.clone() }
-}
-
-impl fmt::Display for NAFrame {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- let mut foo = format!("frame type {}", self.ftype);
- if let Some(pts) = self.ts.pts { foo = format!("{} pts {}", foo, pts); }
- if let Some(dts) = self.ts.dts { foo = format!("{} dts {}", foo, dts); }
- if let Some(dur) = self.ts.duration { foo = format!("{} duration {}", foo, dur); }
- if self.key { foo = format!("{} kf", foo); }
- write!(f, "[{}]", foo)
- }
-}
-
-/// Possible stream types.
-#[derive(Debug,Clone,Copy)]
-#[allow(dead_code)]
-pub enum StreamType {
- /// video stream
- Video,
- /// audio stream
- Audio,
- /// subtitles
- Subtitles,
- /// any data stream (or might be an unrecognized audio/video stream)
- Data,
- /// nonexistent stream
- None,
-}
-
-impl fmt::Display for StreamType {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- match *self {
- StreamType::Video => write!(f, "Video"),
- StreamType::Audio => write!(f, "Audio"),
- StreamType::Subtitles => write!(f, "Subtitles"),
- StreamType::Data => write!(f, "Data"),
- StreamType::None => write!(f, "-"),
- }
- }
-}
-
-#[allow(dead_code)]
-#[derive(Clone)]
-pub struct NAStream {
- media_type: StreamType,
- id: u32,
- num: usize,
- info: Rc<NACodecInfo>,
- tb_num: u32,
- tb_den: u32,
-}
-
-pub fn reduce_timebase(tb_num: u32, tb_den: u32) -> (u32, u32) {
- if tb_num == 0 { return (tb_num, tb_den); }
- if (tb_den % tb_num) == 0 { return (1, tb_den / tb_num); }
-
- let mut a = tb_num;
- let mut b = tb_den;
-
- while a != b {
- if a > b { a -= b; }
- else if b > a { b -= a; }
- }
-
- (tb_num / a, tb_den / a)
-}
-
-impl NAStream {
- pub fn new(mt: StreamType, id: u32, info: NACodecInfo, tb_num: u32, tb_den: u32) -> Self {
- let (n, d) = reduce_timebase(tb_num, tb_den);
- NAStream { media_type: mt, id: id, num: 0, info: Rc::new(info), tb_num: n, tb_den: d }
- }
- pub fn get_id(&self) -> u32 { self.id }
- pub fn get_num(&self) -> usize { self.num }
- pub fn set_num(&mut self, num: usize) { self.num = num; }
- pub fn get_info(&self) -> Rc<NACodecInfo> { self.info.clone() }
- pub fn get_timebase(&self) -> (u32, u32) { (self.tb_num, self.tb_den) }
- pub fn set_timebase(&mut self, tb_num: u32, tb_den: u32) {
- let (n, d) = reduce_timebase(tb_num, tb_den);
- self.tb_num = n;
- self.tb_den = d;
- }
-}
-
-impl fmt::Display for NAStream {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- write!(f, "({}#{} @ {}/{} - {})", self.media_type, self.id, self.tb_num, self.tb_den, self.info.get_properties())
- }
-}
-
-#[allow(dead_code)]
-pub struct NAPacket {
- stream: Rc<NAStream>,
- ts: NATimeInfo,
- buffer: Rc<Vec<u8>>,
- keyframe: bool,
-// options: HashMap<String, NAValue<'a>>,
-}
-
-impl NAPacket {
- pub fn new(str: Rc<NAStream>, ts: NATimeInfo, kf: bool, vec: Vec<u8>) -> Self {
-// let mut vec: Vec<u8> = Vec::new();
-// vec.resize(size, 0);
- NAPacket { stream: str, ts: ts, keyframe: kf, buffer: Rc::new(vec) }
- }
- pub fn get_stream(&self) -> Rc<NAStream> { self.stream.clone() }
- pub fn get_time_information(&self) -> NATimeInfo { self.ts }
- pub fn get_pts(&self) -> Option<u64> { self.ts.get_pts() }
- pub fn get_dts(&self) -> Option<u64> { self.ts.get_dts() }
- pub fn get_duration(&self) -> Option<u64> { self.ts.get_duration() }
- pub fn is_keyframe(&self) -> bool { self.keyframe }
- pub fn get_buffer(&self) -> Rc<Vec<u8>> { self.buffer.clone() }
-}
-
-impl Drop for NAPacket {
- fn drop(&mut self) {}
-}
-
-impl fmt::Display for NAPacket {
- fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- let mut foo = format!("[pkt for {} size {}", self.stream, self.buffer.len());
- if let Some(pts) = self.ts.pts { foo = format!("{} pts {}", foo, pts); }
- if let Some(dts) = self.ts.dts { foo = format!("{} dts {}", foo, dts); }
- if let Some(dur) = self.ts.duration { foo = format!("{} duration {}", foo, dur); }
- if self.keyframe { foo = format!("{} kf", foo); }
- foo = foo + "]";
- write!(f, "{}", foo)
- }
-}
-
-pub trait FrameFromPacket {
- fn new_from_pkt(pkt: &NAPacket, info: Rc<NACodecInfo>, buf: NABufferType) -> NAFrame;
- fn fill_timestamps(&mut self, pkt: &NAPacket);
-}
-
-impl FrameFromPacket for NAFrame {
- fn new_from_pkt(pkt: &NAPacket, info: Rc<NACodecInfo>, buf: NABufferType) -> NAFrame {
- NAFrame::new(pkt.ts, FrameType::Other, pkt.keyframe, info, HashMap::new(), buf)
- }
- fn fill_timestamps(&mut self, pkt: &NAPacket) {
- self.ts = pkt.get_time_information();
- }
-}
-