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-rw-r--r--firmware/mpeg.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/firmware/mpeg.c b/firmware/mpeg.c
index 8504114..3507d2b 100644
--- a/firmware/mpeg.c
+++ b/firmware/mpeg.c
@@ -1482,6 +1482,9 @@ static void mpeg_thread(void)
#if MEM == 8
amount_to_read = MIN(0x100000, amount_to_read);
#endif /* #if MEM == 8 */
+#ifdef HAVE_MMC /* MMC is slow, so don't read too large chunks */
+ amount_to_read = MIN(0x40000, amount_to_read);
+#endif
/* Read as much mpeg data as we can fit in the buffer */
if(mpeg_file >= 0)