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-rw-r--r--formats/format_h263.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/formats/format_h263.c b/formats/format_h263.c
index 70108e9ef..cee3fd7c6 100644
--- a/formats/format_h263.c
+++ b/formats/format_h263.c
@@ -49,7 +49,13 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
/* Portions of the conversion code are by guido@sienanet.it */
-#define BUF_SIZE 4096 /* Two Real h263 Frames */
+/* According to:
+ * http://lists.mpegif.org/pipermail/mp4-tech/2005-July/005741.html
+ * the maximum actual frame size is not 2048, but 8192. Since the maximum
+ * theoretical limit is not much larger (32k = 15bits), we'll go for that
+ * size to ensure we don't corrupt frames sent to us (unless they're
+ * ridiculously large). */
+#define BUF_SIZE 32768 /* Four real h.263 Frames */
struct h263_desc {
unsigned int lastts;