Acorn Super Moving Blocks Decoder

[nihav.git] / nihav-commonfmt / src / demuxers / avi.rs

diff --git a/nihav-commonfmt/src/demuxers/avi.rs b/nihav-commonfmt/src/demuxers/avi.rs
index cd33c51ca150e210670834e3bfa4cee29bed411e..f14c31a466042ae15fe2e969dfbfa722ea719fb9 100644 (file)
--- a/nihav-commonfmt/src/demuxers/avi.rs
+++ b/nihav-commonfmt/src/demuxers/avi.rs
@@ -167,13 +167,13 @@ impl<'a> DemuxCore<'a> for AVIDemuxer<'a> {
                 }
                 continue;
             }
-            let str = strmgr.get_stream(stream_no as usize);
-            if str.is_none() {
+            let stream = strmgr.get_stream(stream_no as usize);
+            if stream.is_none() {
                 self.src.read_skip(size)?;
                 self.movi_size -= size + 8;
                 continue;
             }
-            let stream = str.unwrap();
+            let stream = stream.unwrap();
             if size == 0 {
                 self.movi_size -= 8;
                 if self.movi_size == 0 {
@@ -243,7 +243,7 @@ impl<'a> DemuxCore<'a> for AVIDemuxer<'a> {
         }
         if seek_info.pos < self.movi_pos { return Err(DemuxerError::SeekError); }
         let skip_size = (seek_info.pos - self.movi_pos) as usize;
-        if skip_size > self.movi_size { return Err(DemuxerError::SeekError); }
+        if skip_size > self.movi_orig { return Err(DemuxerError::SeekError); }
         self.movi_size = self.movi_orig - skip_size;
 
         self.cur_frame[seek_info.str_id as usize] = seek_info.pts;
@@ -429,6 +429,7 @@ impl<'a> AVIDemuxer<'a> {
             if pe.stream_no == stream_no {
                 let start_clr           = self.src.read_byte()? as usize;
                 let len                 = self.src.read_byte()? as usize;
+                let len = if len == 0 { 256 } else { len };
                 let _flags              = self.src.read_u16le()?;
                 validate!(start_clr + len <= 256);
                 validate!(len * 4 + 4 == size);
@@ -796,9 +797,9 @@ fn parse_idx1(src: &mut ByteReader, strmgr: &mut StreamManager, seek_idx: &mut S
         let stream_no = ((tag[0] - b'0') * 10 + (tag[1] - b'0')) as usize;
 
         if (flags & 0x10) != 0 {
-            if let Some(str) = strmgr.get_stream(stream_no) {
-                if str.get_media_type() == StreamType::Video {
-                    let (tb_num, tb_den) = str.get_timebase();
+            if let Some(stream) = strmgr.get_stream(stream_no) {
+                if stream.get_media_type() == StreamType::Video {
+                    let (tb_num, tb_den) = stream.get_timebase();
                     let pts = counter[stream_no];
                     let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den);
                     validate!(offset >= movi_pos);