X-Git-Url: https://git.nihav.org/?p=nihav.git;a=blobdiff_plain;f=nihav-core%2Fsrc%2Fframe.rs;h=bc3216bd2b3a37a9247f4414caf951be723bf64e;hp=9756dfbaded9a3f3402cd3b029f46af926d11600;hb=2422d9699cd56cbb86ac32b3e8dd026e20a89db5;hpb=4e8b4f31bc2ef2b22b4c725aa07dfc776664a97b

diff --git a/nihav-core/src/frame.rs b/nihav-core/src/frame.rs
index 9756dfb..bc3216b 100644
--- a/nihav-core/src/frame.rs
+++ b/nihav-core/src/frame.rs
@@ -3,7 +3,9 @@ use std::collections::HashMap;
 use std::fmt;
 pub use std::rc::Rc;
 pub use std::cell::*;
+use std::sync::Arc;
 pub use crate::formats::*;
+pub use crate::refs::*;
 
 #[allow(dead_code)]
 #[derive(Clone,Copy,PartialEq)]
@@ -102,12 +104,10 @@ impl fmt::Display for NACodecTypeInfo {
     }
 }
 
-pub type NABufferRefT<T> = Rc<RefCell<Vec<T>>>;
-
 #[derive(Clone)]
 pub struct NAVideoBuffer<T> {
     info:    NAVideoInfo,
-    data:    NABufferRefT<T>,
+    data:    NABufferRef<Vec<T>>,
     offs:    Vec<usize>,
     strides: Vec<usize>,
 }
@@ -118,16 +118,16 @@ impl<T: Clone> NAVideoBuffer<T> {
         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 get_data(&self) -> &Vec<T> { self.data.as_ref() }
+    pub fn get_data_mut(&mut self) -> Option<&mut Vec<T>> { self.data.as_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 data: Vec<T> = Vec::with_capacity(self.data.len());
+        data.clone_from(self.data.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 }
+        NAVideoBuffer { info: self.info, data: NABufferRef::new(data), offs: offs, strides: strides }
     }
     pub fn get_stride(&self, idx: usize) -> usize {
         if idx >= self.strides.len() { return 0; }
@@ -141,7 +141,7 @@ impl<T: Clone> NAVideoBuffer<T> {
 #[derive(Clone)]
 pub struct NAAudioBuffer<T> {
     info:   NAAudioInfo,
-    data:   NABufferRefT<T>,
+    data:   NABufferRef<Vec<T>>,
     offs:   Vec<usize>,
     chmap:  NAChannelMap,
     len:    usize,
@@ -154,21 +154,21 @@ impl<T: Clone> NAAudioBuffer<T> {
     }
     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 get_data(&self) -> &Vec<T> { self.data.as_ref() }
+    pub fn get_data_mut(&mut self) -> Option<&mut Vec<T>> { self.data.as_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 data: Vec<T> = Vec::with_capacity(self.data.len());
+        data.clone_from(self.data.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 }
+        NAAudioBuffer { info: self.info, data: NABufferRef::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();
+    pub fn new_from_buf(info: NAAudioInfo, data: NABufferRef<Vec<u8>>, chmap: NAChannelMap) -> Self {
+        let len = data.len();
         NAAudioBuffer { info: info, data: data, chmap: chmap, offs: Vec::new(), len: len }
     }
 }
@@ -177,13 +177,14 @@ impl NAAudioBuffer<u8> {
 pub enum NABufferType {
     Video      (NAVideoBuffer<u8>),
     Video16    (NAVideoBuffer<u16>),
+    Video32    (NAVideoBuffer<u32>),
     VideoPacked(NAVideoBuffer<u8>),
     AudioU8    (NAAudioBuffer<u8>),
     AudioI16   (NAAudioBuffer<i16>),
     AudioI32   (NAAudioBuffer<i32>),
     AudioF32   (NAAudioBuffer<f32>),
     AudioPacked(NAAudioBuffer<u8>),
-    Data       (NABufferRefT<u8>),
+    Data       (NABufferRef<Vec<u8>>),
     None,
 }
 
@@ -192,6 +193,7 @@ impl NABufferType {
         match *self {
             NABufferType::Video(ref vb)       => vb.get_offset(idx),
             NABufferType::Video16(ref vb)     => vb.get_offset(idx),
+            NABufferType::Video32(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),
@@ -200,39 +202,54 @@ impl NABufferType {
             _ => 0,
         }
     }
-    pub fn get_vbuf(&mut self) -> Option<NAVideoBuffer<u8>> {
+    pub fn get_video_info(&self) -> Option<NAVideoInfo> {
+        match *self {
+            NABufferType::Video(ref vb)       => Some(vb.get_info()),
+            NABufferType::Video16(ref vb)     => Some(vb.get_info()),
+            NABufferType::Video32(ref vb)     => Some(vb.get_info()),
+            NABufferType::VideoPacked(ref vb) => Some(vb.get_info()),
+            _ => None,
+        }
+    }
+    pub fn get_vbuf(&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>> {
+    pub fn get_vbuf16(&self) -> Option<NAVideoBuffer<u16>> {
         match *self {
             NABufferType::Video16(ref vb)     => Some(vb.clone()),
             _ => None,
         }
     }
-    pub fn get_abuf_u8(&mut self) -> Option<NAAudioBuffer<u8>> {
+    pub fn get_vbuf32(&self) -> Option<NAVideoBuffer<u32>> {
+        match *self {
+            NABufferType::Video32(ref vb)     => Some(vb.clone()),
+            _ => None,
+        }
+    }
+    pub fn get_abuf_u8(&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>> {
+    pub fn get_abuf_i16(&self) -> Option<NAAudioBuffer<i16>> {
         match *self {
             NABufferType::AudioI16(ref ab) => Some(ab.clone()),
             _ => None,
         }
     }
-    pub fn get_abuf_i32(&mut self) -> Option<NAAudioBuffer<i32>> {
+    pub fn get_abuf_i32(&self) -> Option<NAAudioBuffer<i32>> {
         match *self {
             NABufferType::AudioI32(ref ab) => Some(ab.clone()),
             _ => None,
         }
     }
-    pub fn get_abuf_f32(&mut self) -> Option<NAAudioBuffer<f32>> {
+    pub fn get_abuf_f32(&self) -> Option<NAAudioBuffer<f32>> {
         match *self {
             NABufferType::AudioF32(ref ab) => Some(ab.clone()),
             _ => None,
@@ -240,6 +257,48 @@ impl NABufferType {
     }
 }
 
+const NA_SIMPLE_VFRAME_COMPONENTS: usize = 4;
+pub struct NASimpleVideoFrame<'a, T: Copy> {
+    pub width:      [usize; NA_SIMPLE_VFRAME_COMPONENTS],
+    pub height:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
+    pub flip:       bool,
+    pub stride:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
+    pub offset:     [usize; NA_SIMPLE_VFRAME_COMPONENTS],
+    pub components: usize,
+    pub data:       &'a mut Vec<T>,
+}
+
+impl<'a, T:Copy> NASimpleVideoFrame<'a, T> {
+    pub fn from_video_buf(vbuf: &'a mut NAVideoBuffer<T>) -> Option<Self> {
+        let vinfo = vbuf.get_info();
+        let components = vinfo.format.components as usize;
+        if components > NA_SIMPLE_VFRAME_COMPONENTS {
+            return None;
+        }
+        let mut w: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
+        let mut h: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
+        let mut s: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
+        let mut o: [usize; NA_SIMPLE_VFRAME_COMPONENTS] = [0; NA_SIMPLE_VFRAME_COMPONENTS];
+        for comp in 0..components {
+            let (width, height) = vbuf.get_dimensions(comp);
+            w[comp] = width;
+            h[comp] = height;
+            s[comp] = vbuf.get_stride(comp);
+            o[comp] = vbuf.get_offset(comp);
+        }
+        let flip = vinfo.flipped;
+        Some(NASimpleVideoFrame {
+            width:  w,
+            height: h,
+            flip,
+            stride: s,
+            offset: o,
+            components,
+            data: vbuf.data.as_mut().unwrap(),
+            })
+    }
+}
+
 #[derive(Debug,Clone,Copy,PartialEq)]
 pub enum AllocatorError {
     TooLargeDimensions,
@@ -261,16 +320,22 @@ pub fn alloc_video_buffer(vinfo: NAVideoInfo, align: u8) -> Result<NABufferType,
     let height = ((vinfo.height as usize) + align_mod) & !align_mod;
     let mut max_depth = 0;
     let mut all_packed = true;
+    let mut all_bytealigned = 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;
+        } else if ((chr.get_shift() + chr.get_depth()) & 7) != 0 {
+            all_bytealigned = false;
         }
         max_depth = max(max_depth, chr.get_depth());
     }
+    let unfit_elem_size = match fmt.get_elem_size() {
+            2 | 4 => false,
+            _ => true,
+        };
 
 //todo semi-packed like NV12
     if fmt.is_paletted() {
@@ -286,7 +351,7 @@ pub fn alloc_video_buffer(vinfo: NAVideoInfo, align: u8) -> Result<NABufferType,
         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 };
+        let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
         Ok(NABufferType::Video(buf))
     } else if !all_packed {
         for i in 0..fmt.get_num_comp() {
@@ -311,15 +376,20 @@ pub fn alloc_video_buffer(vinfo: NAVideoInfo, align: u8) -> Result<NABufferType,
         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 };
+            let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
             Ok(NABufferType::Video(buf))
-        } else {
+        } else if max_depth <= 16 {
             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 };
+            let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
             Ok(NABufferType::Video16(buf))
+        } else {
+            let mut data: Vec<u32> = Vec::with_capacity(new_size);
+            data.resize(new_size, 0);
+            let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
+            Ok(NABufferType::Video32(buf))
         }
-    } else {
+    } else if all_bytealigned || unfit_elem_size {
         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); }
@@ -329,8 +399,30 @@ pub fn alloc_video_buffer(vinfo: NAVideoInfo, align: u8) -> Result<NABufferType,
         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 };
+        let buf: NAVideoBuffer<u8> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
         Ok(NABufferType::VideoPacked(buf))
+    } else {
+        let elem_sz = fmt.get_elem_size();
+        let new_sz = width.checked_mul(height);
+        if new_sz == None { return Err(AllocatorError::TooLargeDimensions); }
+        new_size = new_sz.unwrap();
+        match elem_sz {
+            2 => {
+                    let mut data: Vec<u16> = Vec::with_capacity(new_size);
+                    data.resize(new_size, 0);
+                    strides.push(width);
+                    let buf: NAVideoBuffer<u16> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
+                    Ok(NABufferType::Video16(buf))
+                },
+            4 => {
+                    let mut data: Vec<u32> = Vec::with_capacity(new_size);
+                    data.resize(new_size, 0);
+                    strides.push(width);
+                    let buf: NAVideoBuffer<u32> = NAVideoBuffer { data: NABufferRef::new(data), info: vinfo, offs: offs, strides: strides };
+                    Ok(NABufferType::Video32(buf))
+                },
+            _ => unreachable!(),
+        }
     }
 }
 
@@ -347,7 +439,7 @@ pub fn alloc_audio_buffer(ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelM
             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 };
+                let buf: NAAudioBuffer<f32> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
                 Ok(NABufferType::AudioF32(buf))
             } else {
                 Err(AllocatorError::TooLargeDimensions)
@@ -356,12 +448,12 @@ pub fn alloc_audio_buffer(ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelM
             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 };
+                let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: NABufferRef::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 };
+                let buf: NAAudioBuffer<i16> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
                 Ok(NABufferType::AudioI16(buf))
             } else {
                 Err(AllocatorError::TooLargeDimensions)
@@ -373,7 +465,7 @@ pub fn alloc_audio_buffer(ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelM
         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 };
+        let buf: NAAudioBuffer<u8> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs: offs, chmap: chmap, len: nsamples };
         Ok(NABufferType::AudioPacked(buf))
     }
 }
@@ -381,7 +473,7 @@ pub fn alloc_audio_buffer(ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelM
 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));
+    let buf: NABufferRef<Vec<u8>> = NABufferRef::new(data);
     Ok(NABufferType::Data(buf))
 }
 
@@ -389,27 +481,76 @@ pub fn copy_buffer(buf: NABufferType) -> NABufferType {
     buf.clone()
 }
 
+pub struct NABufferPool {
+    pool:       Vec<NABufferRef<NABufferType>>,
+    max_len:    usize,
+}
+
+impl NABufferPool {
+    pub fn new(max_len: usize) -> Self {
+        Self {
+            pool:       Vec::with_capacity(max_len),
+            max_len,
+        }
+    }
+    pub fn prealloc_video(&mut self, vinfo: NAVideoInfo, align: u8) -> Result<(), AllocatorError> {
+        let nbufs = self.max_len - self.pool.len();
+        for _ in 0..nbufs {
+            let buf = alloc_video_buffer(vinfo.clone(), align)?;
+            self.pool.push(NABufferRef::new(buf));
+        }
+        Ok(())
+    }
+    pub fn prealloc_audio(&mut self, ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelMap) -> Result<(), AllocatorError> {
+        let nbufs = self.max_len - self.pool.len();
+        for _ in 0..nbufs {
+            let buf = alloc_audio_buffer(ainfo.clone(), nsamples, chmap.clone())?;
+            self.pool.push(NABufferRef::new(buf));
+        }
+        Ok(())
+    }
+    pub fn add(&mut self, buf: NABufferType) -> bool {
+        if self.pool.len() < self.max_len {
+            self.pool.push(NABufferRef::new(buf));
+            true
+        } else {
+            false
+        }
+    }
+    pub fn get_free(&mut self) -> Option<NABufferRef<NABufferType>> {
+        for e in self.pool.iter() {
+            if e.get_num_refs() == 1 {
+                return Some(e.clone());
+            }
+        }
+        None
+    }
+}
+
 #[allow(dead_code)]
 #[derive(Clone)]
 pub struct NACodecInfo {
     name:       &'static str,
     properties: NACodecTypeInfo,
-    extradata:  Option<Rc<Vec<u8>>>,
+    extradata:  Option<Arc<Vec<u8>>>,
 }
 
+pub type NACodecInfoRef = Arc<NACodecInfo>;
+
 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)),
+            Some(vec) => Some(Arc::new(vec)),
         };
         NACodecInfo { name: name, properties: p, extradata: extradata }
     }
-    pub fn new_ref(name: &'static str, p: NACodecTypeInfo, edata: Option<Rc<Vec<u8>>>) -> Self {
+    pub fn new_ref(name: &'static str, p: NACodecTypeInfo, edata: Option<Arc<Vec<u8>>>) -> Self {
         NACodecInfo { name: name, properties: p, extradata: edata }
     }
+    pub fn into_ref(self) -> NACodecInfoRef { Arc::new(self) }
     pub fn get_properties(&self) -> NACodecTypeInfo { self.properties }
-    pub fn get_extradata(&self) -> Option<Rc<Vec<u8>>> {
+    pub fn get_extradata(&self) -> Option<Arc<Vec<u8>>> {
         if let Some(ref vec) = self.extradata { return Some(vec.clone()); }
         None
     }
@@ -422,14 +563,18 @@ impl NACodecInfo {
         if let NACodecTypeInfo::Audio(_) = self.properties { return true; }
         false
     }
-    pub fn new_dummy() -> Rc<Self> {
-        Rc::new(DUMMY_CODEC_INFO)
+    pub fn new_dummy() -> Arc<Self> {
+        Arc::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() })
+    pub fn replace_info(&self, p: NACodecTypeInfo) -> Arc<Self> {
+        Arc::new(NACodecInfo { name: self.name, properties: p, extradata: self.extradata.clone() })
     }
 }
 
+impl Default for NACodecInfo {
+    fn default() -> Self { DUMMY_CODEC_INFO }
+}
+
 impl fmt::Display for NACodecInfo {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         let edata = match self.extradata.clone() {
@@ -451,7 +596,7 @@ pub enum NAValue {
     Int(i32),
     Long(i64),
     String(String),
-    Data(Rc<Vec<u8>>),
+    Data(Arc<Vec<u8>>),
 }
 
 #[derive(Debug,Clone,Copy,PartialEq)]
@@ -502,7 +647,7 @@ impl NATimeInfo {
 pub struct NAFrame {
     ts:             NATimeInfo,
     buffer:         NABufferType,
-    info:           Rc<NACodecInfo>,
+    info:           NACodecInfoRef,
     ftype:          FrameType,
     key:            bool,
     options:        HashMap<String, NAValue>,
@@ -523,12 +668,12 @@ impl NAFrame {
     pub fn new(ts:             NATimeInfo,
                ftype:          FrameType,
                keyframe:       bool,
-               info:           Rc<NACodecInfo>,
+               info:           NACodecInfoRef,
                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_info(&self) -> NACodecInfoRef { 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; }
@@ -589,7 +734,7 @@ pub struct NAStream {
     media_type:     StreamType,
     id:             u32,
     num:            usize,
-    info:           Rc<NACodecInfo>,
+    info:           NACodecInfoRef,
     tb_num:         u32,
     tb_den:         u32,
 }
@@ -612,12 +757,12 @@ pub fn reduce_timebase(tb_num: u32, tb_den: u32) -> (u32, u32) {
 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 }
+        NAStream { media_type: mt, id: id, num: 0, info: info.into_ref(), 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_info(&self) -> NACodecInfoRef { 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);
@@ -636,7 +781,7 @@ impl fmt::Display for NAStream {
 pub struct NAPacket {
     stream:         Rc<NAStream>,
     ts:             NATimeInfo,
-    buffer:         Rc<Vec<u8>>,
+    buffer:         NABufferRef<Vec<u8>>,
     keyframe:       bool,
 //    options:        HashMap<String, NAValue<'a>>,
 }
@@ -645,7 +790,7 @@ 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) }
+        NAPacket { stream: str, ts: ts, keyframe: kf, buffer: NABufferRef::new(vec) }
     }
     pub fn get_stream(&self) -> Rc<NAStream> { self.stream.clone() }
     pub fn get_time_information(&self) -> NATimeInfo { self.ts }
@@ -653,7 +798,7 @@ impl NAPacket {
     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() }
+    pub fn get_buffer(&self) -> NABufferRef<Vec<u8>> { self.buffer.clone() }
 }
 
 impl Drop for NAPacket {
@@ -673,12 +818,12 @@ impl fmt::Display for NAPacket {
 }
 
 pub trait FrameFromPacket {
-    fn new_from_pkt(pkt: &NAPacket, info: Rc<NACodecInfo>, buf: NABufferType) -> NAFrame;
+    fn new_from_pkt(pkt: &NAPacket, info: NACodecInfoRef, 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 {
+    fn new_from_pkt(pkt: &NAPacket, info: NACodecInfoRef, buf: NABufferType) -> NAFrame {
         NAFrame::new(pkt.ts, FrameType::Other, pkt.keyframe, info, HashMap::new(), buf)
     }
     fn fill_timestamps(&mut self, pkt: &NAPacket) {