From: Mark Wooding <mdw@distorted.org.uk>
Date: Fri, 18 Feb 2022 22:51:28 +0000 (+0000)
Subject: dvd-sector-copy.c: Adjust the base position when shifting.
X-Git-Url: https://git.distorted.org.uk/~mdw/dvdrip/commitdiff_plain/ea027dd67d0b1a23995c0029248d52a1dc1a625c

dvd-sector-copy.c: Adjust the base position when shifting.

Fixes stupid bug.
---

diff --git a/dvd-sector-copy.c b/dvd-sector-copy.c
index a2cf9c6..c336d3d 100644
--- a/dvd-sector-copy.c
+++ b/dvd-sector-copy.c
@@ -557,7 +557,7 @@ static ssize_t recovery_read(struct recoverybuf *r,
     } else {
       if (r->end + diff > r->sz) r->end = r->sz - diff;
       rearrange_sectors(r, r->start + diff, r->start, r->end - r->start);
-      r->start += diff; r->end += diff;
+      r->pos -= diff; r->start += diff; r->end += diff;
 #ifdef DEBUG
       show_recovery_buffer_map(r, "shifted up by %"PRIuSEC"", diff);
 #endif
@@ -577,7 +577,7 @@ static ssize_t recovery_read(struct recoverybuf *r,
     } else {
       if (r->start < diff) r->start = diff;
       rearrange_sectors(r, r->start - diff, r->start, r->end - r->start);
-      r->start -= diff; r->end -= diff;
+      r->pos += diff; r->start -= diff; r->end -= diff;
 #ifdef DEBUG
       show_recovery_buffer_map(r, "shifted down by %"PRIuSEC"", diff);
 #endif