Merge commit '3ef6d22e1ba544ab37c73e8fc61382f13aac250f'

* commit '3ef6d22e1ba544ab37c73e8fc61382f13aac250f':
  srtp: cosmetics: Use fewer lines for the test vectors
  srtp: Don't require more input data than what actually is needed

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/srtp.c

@@ -243,8 +243,8 @@ int ff_srtp_encrypt(struct SRTPContext *s, const uint8_t *in, int len,
     int rtcp, hmac_size, padding;
     uint8_t *buf;
 
-    if (len < 12)
-        return 0;
+    if (len < 8)
+        return AVERROR_INVALIDDATA;
 
     rtcp = RTP_PT_IS_RTCP(in[1]);
     hmac_size = rtcp ? s->rtcp_hmac_size : s->rtp_hmac_size;
@@ -267,6 +267,10 @@ int ff_srtp_encrypt(struct SRTPContext *s, const uint8_t *in, int len,
     } else {
         int ext, csrc;
         int seq = AV_RB16(buf + 2);
+
+        if (len < 12)
+            return AVERROR_INVALIDDATA;
+
         ssrc = AV_RB32(buf + 8);
 
         if (seq < s->seq_largest)
@@ -326,9 +330,7 @@ static const char *aes128_80_key = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmn";
 
 static const uint8_t rtp_aes128_80[] = {
     // RTP header
-    0x80, 0xe0, 0x12, 0x34,
-    0x12, 0x34, 0x56, 0x78,
-    0x12, 0x34, 0x56, 0x78,
+    0x80, 0xe0, 0x12, 0x34, 0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78,
     // encrypted payload
     0x62, 0x69, 0x76, 0xca, 0xc5,
     // HMAC
@@ -337,15 +339,10 @@ static const uint8_t rtp_aes128_80[] = {
 
 static const uint8_t rtcp_aes128_80[] = {
     // RTCP header
-    0x81, 0xc9, 0x00, 0x07,
-    0x12, 0x34, 0x56, 0x78,
+    0x81, 0xc9, 0x00, 0x07, 0x12, 0x34, 0x56, 0x78,
     // encrypted payload
-    0x8a, 0xac, 0xdc, 0xa5,
-    0x4c, 0xf6, 0x78, 0xa6,
-    0x62, 0x8f, 0x24, 0xda,
-    0x6c, 0x09, 0x3f, 0xa9,
-    0x28, 0x7a, 0xb5, 0x7f,
-    0x1f, 0x0f, 0xc9, 0x35,
+    0x8a, 0xac, 0xdc, 0xa5, 0x4c, 0xf6, 0x78, 0xa6, 0x62, 0x8f, 0x24, 0xda,
+    0x6c, 0x09, 0x3f, 0xa9, 0x28, 0x7a, 0xb5, 0x7f, 0x1f, 0x0f, 0xc9, 0x35,
     // RTCP index
     0x80, 0x00, 0x00, 0x03,
     // HMAC
@@ -356,9 +353,7 @@ static const char *aes128_32_key = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmn";
 
 static const uint8_t rtp_aes128_32[] = {
     // RTP header
-    0x80, 0xe0, 0x12, 0x34,
-    0x12, 0x34, 0x56, 0x78,
-    0x12, 0x34, 0x56, 0x78,
+    0x80, 0xe0, 0x12, 0x34, 0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78,
     // encrypted payload
     0x62, 0x69, 0x76, 0xca, 0xc5,
     // HMAC
@@ -367,15 +362,10 @@ static const uint8_t rtp_aes128_32[] = {
 
 static const uint8_t rtcp_aes128_32[] = {
     // RTCP header
-    0x81, 0xc9, 0x00, 0x07,
-    0x12, 0x34, 0x56, 0x78,
+    0x81, 0xc9, 0x00, 0x07, 0x12, 0x34, 0x56, 0x78,
     // encrypted payload
-    0x35, 0xe9, 0xb5, 0xff,
-    0x0d, 0xd1, 0xde, 0x70,
-    0x74, 0x10, 0xaa, 0x1b,
-    0xb2, 0x8d, 0xf0, 0x20,
-    0x02, 0x99, 0x6b, 0x1b,
-    0x0b, 0xd0, 0x47, 0x34,
+    0x35, 0xe9, 0xb5, 0xff, 0x0d, 0xd1, 0xde, 0x70, 0x74, 0x10, 0xaa, 0x1b,
+    0xb2, 0x8d, 0xf0, 0x20, 0x02, 0x99, 0x6b, 0x1b, 0x0b, 0xd0, 0x47, 0x34,
     // RTCP index
     0x80, 0x00, 0x00, 0x04,
     // HMAC