-#[cfg(feature="decoder_indeo2")]
-pub mod indeo2;
-
-use std::rc::Rc;
use frame::*;
-use demuxers::*;
+use std::rc::Rc;
+use std::cell::RefCell;
+use std::mem;
use io::byteio::ByteIOError;
use io::bitreader::BitReaderError;
use io::codebook::CodebookError;
#[derive(Debug,Clone,Copy,PartialEq)]
#[allow(dead_code)]
pub enum DecoderError {
+ NoFrame,
+ AllocError,
+ TryAgain,
InvalidData,
ShortData,
MissingReference,
Bug,
}
-type DecoderResult<T> = Result<T, DecoderError>;
+pub type DecoderResult<T> = Result<T, DecoderError>;
impl From<ByteIOError> for DecoderError {
fn from(_: ByteIOError) -> Self { DecoderError::ShortData }
fn from(_: CodebookError) -> Self { DecoderError::InvalidData }
}
+impl From<AllocatorError> for DecoderError {
+ fn from(_: AllocatorError) -> Self { DecoderError::AllocError }
+}
+
+macro_rules! validate {
+ ($a:expr) => { if !$a { println!("check failed at {}:{}", file!(), line!()); return Err(DecoderError::InvalidData); } };
+}
+
+#[allow(dead_code)]
+struct HAMShuffler {
+ lastframe: Option<NAVideoBuffer<u8>>,
+}
+
+impl HAMShuffler {
+ #[allow(dead_code)]
+ fn new() -> Self { HAMShuffler { lastframe: None } }
+ #[allow(dead_code)]
+ fn clear(&mut self) { self.lastframe = None; }
+ #[allow(dead_code)]
+ fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
+ self.lastframe = Some(buf);
+ }
+ #[allow(dead_code)]
+ fn clone_ref(&mut self) -> Option<NAVideoBuffer<u8>> {
+ if let Some(ref mut frm) = self.lastframe {
+ let newfrm = frm.copy_buffer();
+ *frm = newfrm.clone();
+ Some(newfrm)
+ } else {
+ None
+ }
+ }
+ #[allow(dead_code)]
+ fn get_output_frame(&mut self) -> Option<NAVideoBuffer<u8>> {
+ match self.lastframe {
+ Some(ref frm) => Some(frm.clone()),
+ None => None,
+ }
+ }
+}
+
+#[allow(dead_code)]
+struct IPShuffler {
+ lastframe: Option<NAVideoBuffer<u8>>,
+}
+
+impl IPShuffler {
+ #[allow(dead_code)]
+ fn new() -> Self { IPShuffler { lastframe: None } }
+ #[allow(dead_code)]
+ fn clear(&mut self) { self.lastframe = None; }
+ #[allow(dead_code)]
+ fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
+ self.lastframe = Some(buf);
+ }
+ #[allow(dead_code)]
+ fn get_ref(&mut self) -> Option<NAVideoBuffer<u8>> {
+ if let Some(ref frm) = self.lastframe {
+ Some(frm.clone())
+ } else {
+ None
+ }
+ }
+}
+
+#[allow(dead_code)]
+struct IPBShuffler {
+ lastframe: Option<NAVideoBuffer<u8>>,
+ nextframe: Option<NAVideoBuffer<u8>>,
+}
+
+impl IPBShuffler {
+ #[allow(dead_code)]
+ fn new() -> Self { IPBShuffler { lastframe: None, nextframe: None } }
+ #[allow(dead_code)]
+ fn clear(&mut self) { self.lastframe = None; self.nextframe = None; }
+ #[allow(dead_code)]
+ fn add_frame(&mut self, buf: NAVideoBuffer<u8>) {
+ mem::swap(&mut self.lastframe, &mut self.nextframe);
+ self.lastframe = Some(buf);
+ }
+ #[allow(dead_code)]
+ fn get_lastref(&mut self) -> Option<NAVideoBuffer<u8>> {
+ if let Some(ref frm) = self.lastframe {
+ Some(frm.clone())
+ } else {
+ None
+ }
+ }
+ #[allow(dead_code)]
+ fn get_nextref(&mut self) -> Option<NAVideoBuffer<u8>> {
+ if let Some(ref frm) = self.nextframe {
+ Some(frm.clone())
+ } else {
+ None
+ }
+ }
+}
+
pub trait NADecoder {
fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()>;
- fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<Rc<NAFrame>>;
+ fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef>;
}
+#[derive(Clone,Copy)]
+pub struct DecoderInfo {
+ name: &'static str,
+ get_decoder: fn () -> Box<NADecoder>,
+}
+
+#[cfg(feature="h263")]
+mod blockdsp;
+
+#[cfg(feature="decoder_clearvideo")]
+mod clearvideo;
+#[cfg(feature="decoder_gdvvid")]
+mod gremlinvideo;
+#[cfg(any(feature="decoder_indeo2", feature="decoder_indeo3", feature="decoder_indeo4", feature="decoder_indeo5", feature="decoder_imc"))]
+mod indeo;
+#[cfg(feature="h263")]
+mod h263;
+
+#[cfg(feature="decoder_pcm")]
+mod pcm;
+
+const DECODERS: &[DecoderInfo] = &[
+#[cfg(feature="decoder_clearvideo")]
+ DecoderInfo { name: "clearvideo", get_decoder: clearvideo::get_decoder },
+#[cfg(feature="decoder_clearvideo")]
+ DecoderInfo { name: "clearvideo_rm", get_decoder: clearvideo::get_decoder_rm },
+#[cfg(feature="decoder_gdvvid")]
+ DecoderInfo { name: "gdv-video", get_decoder: gremlinvideo::get_decoder },
+#[cfg(feature="decoder_indeo2")]
+ DecoderInfo { name: "indeo2", get_decoder: indeo::indeo2::get_decoder },
+#[cfg(feature="decoder_indeo3")]
+ DecoderInfo { name: "indeo3", get_decoder: indeo::indeo3::get_decoder },
+#[cfg(feature="decoder_indeo4")]
+ DecoderInfo { name: "indeo4", get_decoder: indeo::indeo4::get_decoder },
+#[cfg(feature="decoder_indeo5")]
+ DecoderInfo { name: "indeo5", get_decoder: indeo::indeo5::get_decoder },
+#[cfg(feature="decoder_intel263")]
+ DecoderInfo { name: "intel263", get_decoder: h263::intel263::get_decoder },
+#[cfg(feature="decoder_realvideo1")]
+ DecoderInfo { name: "realvideo1", get_decoder: h263::rv10::get_decoder },
+#[cfg(feature="decoder_realvideo2")]
+ DecoderInfo { name: "realvideo2", get_decoder: h263::rv20::get_decoder },
+
+#[cfg(feature="decoder_pcm")]
+ DecoderInfo { name: "pcm", get_decoder: pcm::get_decoder },
+#[cfg(feature="decoder_imc")]
+ DecoderInfo { name: "imc", get_decoder: indeo::imc::get_decoder_imc },
+#[cfg(feature="decoder_imc")]
+ DecoderInfo { name: "iac", get_decoder: indeo::imc::get_decoder_iac },
+];
+
+pub fn find_decoder(name: &str) -> Option<fn () -> Box<NADecoder>> {
+ for &dec in DECODERS {
+ if dec.name == name {
+ return Some(dec.get_decoder);
+ }
+ }
+ None
+}