X-Git-Url: https://git.nihav.org/?a=blobdiff_plain;f=nihav-codec-support%2Fsrc%2Fcodecs%2Fh263%2Fdecoder.rs;h=f5c528ac420e9e0905f88980e0d002c324f83337;hb=c82fed396735d41118b41672ebc28ed27e186959;hp=36d8a99046ec142040f82c6d8db28f66f2f0fb57;hpb=5131a66c0d27dfd69c0599df16e35be79970ff68;p=nihav.git

diff --git a/nihav-codec-support/src/codecs/h263/decoder.rs b/nihav-codec-support/src/codecs/h263/decoder.rs
index 36d8a99..f5c528a 100644
--- a/nihav-codec-support/src/codecs/h263/decoder.rs
+++ b/nihav-codec-support/src/codecs/h263/decoder.rs
@@ -118,7 +118,7 @@ struct PredCoeffs {
     ver: [[i16; 8]; 6],
 }
 
-const ZERO_PRED_COEFFS: PredCoeffs = PredCoeffs { hor: [[0; 8]; 6], ver: [[0; 8]; 6] };
+const ZERO_PRED_COEFFS: PredCoeffs = PredCoeffs { hor: [[1024, 0, 0, 0, 0, 0, 0, 0]; 6], ver: [[1024, 0, 0, 0, 0, 0, 0, 0]; 6] };
 
 pub const H263DEC_OPT_USES_GOB: u32     = 0x0001;
 pub const H263DEC_OPT_SLICE_RESET: u32  = 0x0002;
@@ -301,6 +301,7 @@ impl H263BaseDecoder {
             bi.mv_f[blk_no]
         }
     }
+    #[allow(clippy::cyclomatic_complexity)]
     fn reconstruct_obmc(&mut self, buf: &mut NAVideoBuffer<u8>, slice_start: usize, start: usize, end: usize, slice_end: bool) -> usize {
         let mut mb_x = start % self.mb_w;
         let mut mb_y = start / self.mb_w;
@@ -348,7 +349,7 @@ impl H263BaseDecoder {
                         } else {
                             if single_mv { cur_mv } else { bi.mv_f[blk + 1] }
                         };
-                    
+
                     let mut obmcbuf = NASimpleVideoFrame::from_video_buf(&mut self.obmc_buf).unwrap();
 
                     if let Some(ref srcbuf) = self.ipbs.get_lastref() {
@@ -404,6 +405,7 @@ impl H263BaseDecoder {
         }
         mb_pos
     }
+    #[allow(clippy::cyclomatic_complexity)]
     pub fn parse_frame(&mut self, bd: &mut BlockDecoder, bdsp: &BlockDSP) -> DecoderResult<NABufferType> {
         let pinfo = bd.decode_pichdr()?;
         let mut mvi = MVInfo::new();
@@ -466,7 +468,7 @@ impl H263BaseDecoder {
 
         let mut sstate = SliceState::new(pinfo.mode == Type::I);
         let mut mb_pos = 0;
-        let apply_acpred = (pinfo.mode == Type::I) && pinfo.plusinfo.is_some() && pinfo.plusinfo.unwrap().aic;
+        let apply_acpred = /*(pinfo.mode == Type::I) && */pinfo.plusinfo.is_some() && pinfo.plusinfo.unwrap().aic;
         if apply_acpred {
             self.pred_coeffs.truncate(0);
             self.pred_coeffs.resize(self.mb_w * self.mb_h, ZERO_PRED_COEFFS);
@@ -485,7 +487,7 @@ impl H263BaseDecoder {
                         slice_start = mb_pos;
                     }
                     slice = bd.decode_slice_header(&pinfo)?;
-                    if !self.is_gob && self.slice_reset {
+                    if self.is_gob || self.slice_reset {
                         mvi.reset(self.mb_w, mb_x, pinfo.get_mvmode());
                         if is_b || pinfo.is_pb() {
                             mvi2.reset(self.mb_w, mb_x, pinfo.get_mvmode());
@@ -511,6 +513,7 @@ impl H263BaseDecoder {
                     if is_b {
                         mvi2.set_zero_mv(mb_x);
                     } else if pinfo.is_pb() {
+                        mvi.predict(mb_x, 0, false, binfo.get_mv2(0), sstate.first_line, sstate.first_mb);
                         mvi2.predict(mb_x, 0, false, binfo.get_mv2(0), sstate.first_line, sstate.first_mb);
                     }
                     if do_obmc {
@@ -671,8 +674,8 @@ impl H263BaseDecoder {
         let bufinfo = alloc_video_buffer(vinfo, 4)?;
         let b_buf = bufinfo.get_vbuf().unwrap();
 
-        if let (Some(ref bck_buf), Some(ref fwd_buf)) = (self.ipbs.get_nextref(), self.ipbs.get_lastref()) {
-            recon_b_frame(b_buf, fwd_buf.clone(), bck_buf.clone(), self.mb_w, self.mb_h, self.b_data.as_slice(), bdsp);
+        if let (Some(ref bck_buf), Some(ref fwd_buf)) = (self.ipbs.get_b_bwdref(), self.ipbs.get_b_fwdref()) {
+            recon_b_frame(b_buf, bck_buf.clone(), fwd_buf.clone(), self.mb_w, self.mb_h, self.b_data.as_slice(), bdsp);
         }
 
         self.b_data.truncate(0);
@@ -755,14 +758,14 @@ fn recon_b_frame(mut b_buf: NAVideoBufferRef<u8>, bck_buf: NAVideoBufferRef<u8>,
             let cbp    = b_data[cur_mb].cbp;
             cbpi.set_cbp(mb_x, cbp);
             if num_mv == 1 {
-                bdsp.copy_blocks(&mut b_buf, fwd_buf.clone(), mb_x * 16, mb_y * 16, b_data[cur_mb].mv_b[0]);
+                bdsp.copy_blocks(&mut b_buf, fwd_buf.clone(), mb_x * 16, mb_y * 16, b_data[cur_mb].mv_f[0]);
                 if !is_fwd {
-                    bdsp.avg_blocks(&mut b_buf, bck_buf.clone(), mb_x * 16, mb_y * 16, b_data[cur_mb].mv_f[0]);
+                    bdsp.avg_blocks(&mut b_buf, bck_buf.clone(), mb_x * 16, mb_y * 16, b_data[cur_mb].mv_b[0]);
                 }
             } else {
-                bdsp.copy_blocks8x8(&mut b_buf, fwd_buf.clone(), mb_x * 16, mb_y * 16, &b_data[cur_mb].mv_b);
+                bdsp.copy_blocks8x8(&mut b_buf, fwd_buf.clone(), mb_x * 16, mb_y * 16, &b_data[cur_mb].mv_f);
                 if !is_fwd {
-                    bdsp.avg_blocks8x8(&mut b_buf, bck_buf.clone(), mb_x * 16, mb_y * 16, &b_data[cur_mb].mv_f);
+                    bdsp.avg_blocks8x8(&mut b_buf, bck_buf.clone(), mb_x * 16, mb_y * 16, &b_data[cur_mb].mv_b);
                 }
             }
             if cbp != 0 {