1 #[cfg(feature="decoder_indeo2")]
6 use std::cell::RefCell;
7 use io::byteio::ByteIOError;
8 use io::bitreader::BitReaderError;
9 use io::codebook::CodebookError;
11 #[derive(Debug,Clone,Copy,PartialEq)]
13 pub enum DecoderError {
21 type DecoderResult<T> = Result<T, DecoderError>;
23 impl From<ByteIOError> for DecoderError {
24 fn from(_: ByteIOError) -> Self { DecoderError::ShortData }
27 impl From<BitReaderError> for DecoderError {
28 fn from(e: BitReaderError) -> Self {
30 BitReaderError::BitstreamEnd => DecoderError::ShortData,
31 _ => DecoderError::InvalidData,
36 impl From<CodebookError> for DecoderError {
37 fn from(_: CodebookError) -> Self { DecoderError::InvalidData }
42 lastframe: Option<NAVideoBuffer<u8>>,
47 fn new() -> Self { HAMShuffler { lastframe: None } }
49 fn clear(&mut self) { self.lastframe = None; }
51 fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
52 self.lastframe = Some(buf);
55 fn clone_ref(&mut self) -> Option<NAVideoBuffer<u8>> {
56 if let Some(ref mut frm) = self.lastframe {
57 let newfrm = frm.copy_buffer();
58 *frm = newfrm.clone();
65 fn get_output_frame(&mut self) -> Option<NAVideoBuffer<u8>> {
66 match self.lastframe {
67 Some(ref frm) => Some(frm.clone()),
74 fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()>;
75 fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef>;
79 pub struct DecoderInfo {
81 get_decoder: fn () -> Box<NADecoder>,
84 const DECODERS: &[DecoderInfo] = &[
85 #[cfg(feature="decoder_indeo2")]
86 DecoderInfo { name: "indeo2", get_decoder: indeo2::get_decoder },
89 pub fn find_decoder(name: &str) -> Option<fn () -> Box<NADecoder>> {
90 for &dec in DECODERS {
92 return Some(dec.get_decoder);