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-rw-r--r--libavformat/swf.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/libavformat/swf.c b/libavformat/swf.c
index 3195f8c58a..703aa6589c 100644
--- a/libavformat/swf.c
+++ b/libavformat/swf.c
@@ -118,8 +118,7 @@ static const int sBitsPerSlot[3] = {
static int swf_mp3_info(void *data, int *byteSize, int *samplesPerFrame, int *sampleRate, int *isMono )
{
- uint8_t *dataTmp = (uint8_t *)data;
- uint32_t header = ( (uint32_t)dataTmp[0] << 24 ) | ( (uint32_t)dataTmp[1] << 16 ) | ( (uint32_t)dataTmp[2] << 8 ) | (uint32_t)dataTmp[3];
+ uint32_t header = AV_RB32(data);
int layerID = 3 - ((header >> 17) & 0x03);
int bitRateID = ((header >> 12) & 0x0f);
int sampleRateID = ((header >> 10) & 0x03);