1 #[cfg(feature="decoder_indeo2")]
3 #[cfg(feature="decoder_pcm")]
8 use std::cell::RefCell;
9 use io::byteio::ByteIOError;
10 use io::bitreader::BitReaderError;
11 use io::codebook::CodebookError;
13 #[derive(Debug,Clone,Copy,PartialEq)]
15 pub enum DecoderError {
23 type DecoderResult<T> = Result<T, DecoderError>;
25 impl From<ByteIOError> for DecoderError {
26 fn from(_: ByteIOError) -> Self { DecoderError::ShortData }
29 impl From<BitReaderError> for DecoderError {
30 fn from(e: BitReaderError) -> Self {
32 BitReaderError::BitstreamEnd => DecoderError::ShortData,
33 _ => DecoderError::InvalidData,
38 impl From<CodebookError> for DecoderError {
39 fn from(_: CodebookError) -> Self { DecoderError::InvalidData }
44 lastframe: Option<NAVideoBuffer<u8>>,
49 fn new() -> Self { HAMShuffler { lastframe: None } }
51 fn clear(&mut self) { self.lastframe = None; }
53 fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
54 self.lastframe = Some(buf);
57 fn clone_ref(&mut self) -> Option<NAVideoBuffer<u8>> {
58 if let Some(ref mut frm) = self.lastframe {
59 let newfrm = frm.copy_buffer();
60 *frm = newfrm.clone();
67 fn get_output_frame(&mut self) -> Option<NAVideoBuffer<u8>> {
68 match self.lastframe {
69 Some(ref frm) => Some(frm.clone()),
76 fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()>;
77 fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef>;
81 pub struct DecoderInfo {
83 get_decoder: fn () -> Box<NADecoder>,
86 const DECODERS: &[DecoderInfo] = &[
87 #[cfg(feature="decoder_indeo2")]
88 DecoderInfo { name: "indeo2", get_decoder: indeo2::get_decoder },
89 #[cfg(feature="decoder_pcm")]
90 DecoderInfo { name: "pcm", get_decoder: pcm::get_decoder },
93 pub fn find_decoder(name: &str) -> Option<fn () -> Box<NADecoder>> {
94 for &dec in DECODERS {
96 return Some(dec.get_decoder);