[FFmpeg-cvslog] lavf/srt: fix build fail when used the libsrt 1.4.1

[Jun Zhao]

ffmpeg | branch: release/4.3 | Jun Zhao <barryjzhao at tencent.com> | Sun Jul 12 13:48:48 2020 +0800| [6d886b6586bbc169525c84ce798c654f2fa8013a] | committer: Jun Zhao

lavf/srt: fix build fail when used the libsrt 1.4.1

libsrt changed the:
SRTO_SMOOTHER   -> SRTO_CONGESTION
SRTO_STRICTENC  -> SRTO_ENFORCEDENCRYPTION
and removed the front of deprecated options (SRTO_SMOOTHER/SRTO_STRICTENC)
in the header, it's lead to build fail

fix #8760

Signed-off-by: Jun Zhao <barryjzhao at tencent.com>
(cherry-pick from commit 7c59e1b0f285cd7c7b35fcd71f49c5fd52cf9315)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6d886b6586bbc169525c84ce798c654f2fa8013a
---

 libavformat/libsrt.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libavformat/libsrt.c b/libavformat/libsrt.c
index a569209318..4025b24976 100644
--- a/libavformat/libsrt.c
+++ b/libavformat/libsrt.c
@@ -314,8 +314,12 @@ static int libsrt_set_options_pre(URLContext *h, int fd)
         (s->pbkeylen >= 0 && libsrt_setsockopt(h, fd, SRTO_PBKEYLEN, "SRTO_PBKEYLEN", &s->pbkeylen, sizeof(s->pbkeylen)) < 0) ||
         (s->passphrase && libsrt_setsockopt(h, fd, SRTO_PASSPHRASE, "SRTO_PASSPHRASE", s->passphrase, strlen(s->passphrase)) < 0) ||
 #if SRT_VERSION_VALUE >= 0x010302
+#if SRT_VERSION_VALUE >= 0x010401
+        (s->enforced_encryption >= 0 && libsrt_setsockopt(h, fd, SRTO_ENFORCEDENCRYPTION, "SRTO_ENFORCEDENCRYPTION", &s->enforced_encryption, sizeof(s->enforced_encryption)) < 0) ||
+#else
         /* SRTO_STRICTENC == SRTO_ENFORCEDENCRYPTION (53), but for compatibility, we used SRTO_STRICTENC */
         (s->enforced_encryption >= 0 && libsrt_setsockopt(h, fd, SRTO_STRICTENC, "SRTO_STRICTENC", &s->enforced_encryption, sizeof(s->enforced_encryption)) < 0) ||
+#endif
         (s->kmrefreshrate >= 0 && libsrt_setsockopt(h, fd, SRTO_KMREFRESHRATE, "SRTO_KMREFRESHRATE", &s->kmrefreshrate, sizeof(s->kmrefreshrate)) < 0) ||
         (s->kmpreannounce >= 0 && libsrt_setsockopt(h, fd, SRTO_KMPREANNOUNCE, "SRTO_KMPREANNOUNCE", &s->kmpreannounce, sizeof(s->kmpreannounce)) < 0) ||
 #endif
@@ -334,7 +338,11 @@ static int libsrt_set_options_pre(URLContext *h, int fd)
         (s->lossmaxttl >= 0 && libsrt_setsockopt(h, fd, SRTO_LOSSMAXTTL, "SRTO_LOSSMAXTTL", &s->lossmaxttl, sizeof(s->lossmaxttl)) < 0) ||
         (s->minversion >= 0 && libsrt_setsockopt(h, fd, SRTO_MINVERSION, "SRTO_MINVERSION", &s->minversion, sizeof(s->minversion)) < 0) ||
         (s->streamid && libsrt_setsockopt(h, fd, SRTO_STREAMID, "SRTO_STREAMID", s->streamid, strlen(s->streamid)) < 0) ||
+#if SRT_VERSION_VALUE >= 0x010401
+        (s->smoother && libsrt_setsockopt(h, fd, SRTO_CONGESTION, "SRTO_CONGESTION", s->smoother, strlen(s->smoother)) < 0) ||
+#else
         (s->smoother && libsrt_setsockopt(h, fd, SRTO_SMOOTHER, "SRTO_SMOOTHER", s->smoother, strlen(s->smoother)) < 0) ||
+#endif
         (s->messageapi >= 0 && libsrt_setsockopt(h, fd, SRTO_MESSAGEAPI, "SRTO_MESSAGEAPI", &s->messageapi, sizeof(s->messageapi)) < 0) ||
         (s->payload_size >= 0 && libsrt_setsockopt(h, fd, SRTO_PAYLOADSIZE, "SRTO_PAYLOADSIZE", &s->payload_size, sizeof(s->payload_size)) < 0) ||
         ((h->flags & AVIO_FLAG_WRITE) && libsrt_setsockopt(h, fd, SRTO_SENDER, "SRTO_SENDER", &yes, sizeof(yes)) < 0)) {