From: Kostya Shishkov <kostya.shishkov@gmail.com>
Date: Sat, 22 Aug 2026 17:01:58 +0000 (+0200)
Subject: duck_ivf: support files with zero declared frames
X-Git-Url: https://git.nihav.org/?a=commitdiff_plain;h=afeaafd57f1a0d84e26ce9bd7b2a5c93bac058ec;p=nihav.git

duck_ivf: support files with zero declared frames
---

diff --git a/nihav-duck/src/demuxers/ivf.rs b/nihav-duck/src/demuxers/ivf.rs
index 8ed287a..61dbcbe 100644
--- a/nihav-duck/src/demuxers/ivf.rs
+++ b/nihav-duck/src/demuxers/ivf.rs
@@ -49,8 +49,9 @@ impl<'a> DemuxCore<'a> for IVFDemuxer<'a> {
     }
 
     fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
-        while self.frameno < self.nframes {
-            let fsize                   = self.src.read_u32le()? as usize;
+        while self.nframes == 0 || self.frameno < self.nframes {
+            let fsize                   = self.src.read_u32le()
+                    .map_err(|err| if self.nframes == 0 { DemuxerError::EOF } else { DemuxerError::from(err) })? as usize;
             let tstamp                  = self.src.read_u64le()?;
             self.frameno += 1;