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-rw-r--r--libavformat/apm.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/libavformat/apm.c b/libavformat/apm.c
index 4c5844c83e..38a0f6382a 100644
--- a/libavformat/apm.c
+++ b/libavformat/apm.c
@@ -26,7 +26,7 @@
#include "libavutil/internal.h"
#include "libavutil/intreadwrite.h"
-#define APM_FILE_HEADER_SIZE 18
+#define APM_FILE_HEADER_SIZE 20
#define APM_FILE_EXTRADATA_SIZE 80
#define APM_EXTRADATA_SIZE 28
@@ -287,7 +287,7 @@ static int apm_write_trailer(AVFormatContext *s)
int64_t file_size, data_size;
file_size = avio_tell(s->pb);
- data_size = file_size - (APM_FILE_HEADER_SIZE + 2 + APM_FILE_EXTRADATA_SIZE);
+ data_size = file_size - (APM_FILE_HEADER_SIZE + APM_FILE_EXTRADATA_SIZE);
if (file_size >= UINT32_MAX) {
av_log(s, AV_LOG_ERROR,