Fix inaccurate time display for 44.1 (and 22.05) kHz MP3 audio tracks. Time was off by about 0.2%. Doesn't sound much, but after one hour, that's 8 seconds. Also fix a problem when seeking to near the end of a file.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22145 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 4 insertions, 3 deletions

diff --git a/apps/codecs/mpa.c b/apps/codecs/mpa.c
index d5b4d02889..f248744c50 100644
--- a/apps/codecs/mpa.c
+++ b/apps/codecs/mpa.c
@@ -130,13 +130,14 @@ static int get_file_pos(int newtime)
         return -1;
     }
 
-    pos += id3->first_frame_offset;
-
     /* Don't seek right to the end of the file so that we can
        transition properly to the next song */
     if (pos >= (int)(id3->filesize - id3->id3v1len))
         pos = id3->filesize - id3->id3v1len - 1;
 
+    /* id3->filesize excludes id3->first_frame_offset, so add it now */
+    pos += id3->first_frame_offset;
+
     return pos;
 }
 
@@ -492,7 +493,7 @@ next_track:
         }
 
         samplesdone += framelength;
-        ci->set_elapsed(samplesdone / (current_frequency / 1000));
+        ci->set_elapsed((samplesdone * 1000) / current_frequency);
     }
 
     /* wait for synth idle - MT only*/