use nihav_core::formats::YUV420_FORMAT;
use nihav_core::frame::{NABufferType, NAVideoInfo, NAVideoBuffer, NAVideoBufferRef, FrameType, alloc_video_buffer};
-use nihav_core::codecs::{NADecoderSupport, MV, ZERO_MV, DecoderError, DecoderResult, IPBShuffler};
+use nihav_core::codecs::{NADecoderSupport, DecoderError, DecoderResult};
+use nihav_codec_support::codecs::{MV, ZERO_MV, IPBShuffler};
use nihav_core::io::bitreader::{BitReader,BitReaderMode};
use nihav_core::io::intcode::*;
+use nihav_codec_support::data::GenericCache;
use std::mem;
use super::rv34codes::*;
use super::rv34dsp::*;
-pub struct GenericCache<T: Copy> {
- pub height: usize,
- pub stride: usize,
- pub xpos: usize,
- pub data: Vec<T>,
- pub default: T,
-}
-
-impl<T:Copy> GenericCache<T> {
- pub fn new(height: usize, stride: usize, default: T) -> Self {
- let mut ret = Self {
- stride,
- height,
- xpos: 0,
- data: Vec::with_capacity((height + 1) * stride),
- default,
- };
- ret.reset();
- ret
- }
- fn full_size(&self) -> usize { self.stride * (self.height + 1) }
- pub fn reset(&mut self) {
- self.data.truncate(0);
- let size = self.full_size();
- self.data.resize(size, self.default);
- self.xpos = self.stride + 1;
- }
- pub fn update_row(&mut self) {
- for i in 0..self.stride {
- self.data[i] = self.data[self.height * self.stride + i];
- }
- self.data.truncate(self.stride);
- let size = self.full_size();
- self.data.resize(size, self.default);
- self.xpos = self.stride + 1;
- }
-}
-
trait RV34MVScale {
fn scale(&self, trd: u16, trb: u16) -> (MV, MV);
}
if ini_off >= src.len() { return Err(DecoderError::ShortData); }
- let mut br = BitReader::new(&src[1..], ini_off - 1, BitReaderMode::BE);
+ let mut br = BitReader::new(&src[1..ini_off], BitReaderMode::BE);
for i in 0..num_slices {
br.skip(32)?;
if slice_no < slice_offs.len() - 1 {
let cur_pos = br.tell() as u32;
br.seek((slice_offs[slice_no + 1] * 8) as u32)?;
- let nhdr = bd.decode_slice_header(br, shdr.width, shdr.height)?;
+ if let Ok(nhdr) = bd.decode_slice_header(br, shdr.width, shdr.height) {
+ validate!(nhdr.start > shdr.start);
+ shdr.end = nhdr.start;
+ } else {
+ if slice_no + 2 < slice_offs.len() {
+ br.seek((slice_offs[slice_no + 2] * 8) as u32)?;
+ if let Ok(nhdr) = bd.decode_slice_header(br, shdr.width, shdr.height) {
+ validate!(nhdr.start > shdr.start);
+ shdr.end = nhdr.start;
+ } else {
+ shdr.end = ((shdr.width + 15) >> 4) * ((shdr.height + 15) >> 4);
+ }
+ } else {
+ shdr.end = ((shdr.width + 15) >> 4) * ((shdr.height + 15) >> 4);
+ }
+ }
br.seek(cur_pos)?;
- validate!(nhdr.start > shdr.start);
- shdr.end = nhdr.start;
} else {
shdr.end = ((shdr.width + 15) >> 4) * ((shdr.height + 15) >> 4);
}
Ok(MV{ x, y })
}
-fn do_mc_16x16(dsp: &Box<dyn RV34DSP>, buf: &mut NAVideoBuffer<u8>, prevbuf: &NAVideoBuffer<u8>, mb_x: usize, mb_y: usize, mv: MV, avg: bool) {
+fn do_mc_16x16(dsp: &Box<dyn RV34DSP + Send>, buf: &mut NAVideoBuffer<u8>, prevbuf: &NAVideoBuffer<u8>, mb_x: usize, mb_y: usize, mv: MV, avg: bool) {
dsp.do_luma_mc (buf, prevbuf, mb_x * 16, mb_y * 16, mv, true, avg);
dsp.do_chroma_mc(buf, prevbuf, mb_x * 8, mb_y * 8, 1, mv, true, avg);
dsp.do_chroma_mc(buf, prevbuf, mb_x * 8, mb_y * 8, 2, mv, true, avg);
}
-fn do_mc_8x8(dsp: &Box<dyn RV34DSP>, buf: &mut NAVideoBuffer<u8>, prevbuf: &NAVideoBuffer<u8>, mb_x: usize, xoff: usize, mb_y: usize, yoff: usize, mv: MV, avg: bool) {
+fn do_mc_8x8(dsp: &Box<dyn RV34DSP + Send>, buf: &mut NAVideoBuffer<u8>, prevbuf: &NAVideoBuffer<u8>, mb_x: usize, xoff: usize, mb_y: usize, yoff: usize, mv: MV, avg: bool) {
dsp.do_luma_mc (buf, prevbuf, mb_x * 16 + xoff * 8, mb_y * 16 + yoff * 8, mv, false, avg);
dsp.do_chroma_mc(buf, prevbuf, mb_x * 8 + xoff * 4, mb_y * 8 + yoff * 4, 1, mv, false, avg);
dsp.do_chroma_mc(buf, prevbuf, mb_x * 8 + xoff * 4, mb_y * 8 + yoff * 4, 2, mv, false, avg);
pub struct RV34Decoder {
is_rv30: bool,
coderead: RV34Codes,
- dsp: Box<dyn RV34DSP>,
+ dsp: Box<dyn RV34DSP + Send>,
cdsp: RV34CommonDSP,
width: usize,
height: usize,
}
impl RV34Decoder {
- pub fn new(is_rv30: bool, dsp: Box<dyn RV34DSP>) -> Self {
+ pub fn new(is_rv30: bool, dsp: Box<dyn RV34DSP + Send>) -> Self {
let tmp_vinfo = NAVideoInfo::new(16, 16, false, YUV420_FORMAT);
let vt = alloc_video_buffer(tmp_vinfo, 4).unwrap();
let vb = vt.get_vbuf();
parse_slice_offsets(src, &mut slice_offs)?;
let ini_off = slice_offs.len() * 8 + 1;
- let mut br = BitReader::new(&src[ini_off..], src.len() - ini_off, BitReaderMode::BE);
+ let mut br = BitReader::new(&src[ini_off..], BitReaderMode::BE);
let hdr0 = decode_slice_header(&mut br, bd, 0, slice_offs.as_slice(), self.width, self.height)?;
validate!((hdr0.width != 0) && (hdr0.height != 0));
self.width = hdr0.width;
self.base_ts += 1 << 13;
}
}
+ match hdr0.ftype {
+ FrameType::P => {
+ if self.ipbs.get_lastref().is_none() {
+ return Err(DecoderError::MissingReference);
+ }
+ },
+ FrameType::B => {
+ if self.ipbs.get_lastref().is_none() {
+ return Err(DecoderError::MissingReference);
+ }
+ if self.ipbs.get_nextref().is_none() {
+ return Err(DecoderError::MissingReference);
+ }
+ },
+ _ => {},
+ };
let ts_diff = (self.next_ts << 3).wrapping_sub(hdr0.pts << 3) >> 3;
let ts = self.base_ts + (self.next_ts as u64) - (ts_diff as u64);
sstate.trd = (self.next_ts << 3).wrapping_sub(self.last_ts << 3) >> 3;
Ok((NABufferType::Video(buf), hdr0.ftype, ts))
}
+ pub fn flush(&mut self) {
+ self.ipbs.clear();
+ }
}
projects / nihav.git / blobdiff