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avformat/libsrt: fix cleanups on failed libsrt_open() and libsrt_setup() 

- Call srt_epoll_release() to avoid fd leak on libsrt_setup() error.
- Call srt_cleanup() on libsrt_open() failure.
- Fix return value and method on mode parsing failure.

Based on a patch by Nicolas Sugino <nsugino@3way.com.ar>.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2020-10-09 21:37:07 +02:00
parent e704750a9f
commit fb0304fcc9
1 changed files with 14 additions and 7 deletions
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21
libavformat/libsrt.c
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@ -373,11 +373,6 @@ static int libsrt_setup(URLContext *h, const char *uri, int flags)
int64_t open_timeout = 0;
int eid;
eid = srt_epoll_create();
if (eid < 0)
return libsrt_neterrno(h);
s->eid = eid;
av_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
&port, path, sizeof(path), uri);
if (strcmp(proto, "srt"))
@ -413,6 +408,11 @@ static int libsrt_setup(URLContext *h, const char *uri, int flags)
cur_ai = ai;
eid = srt_epoll_create();
if (eid < 0)
return libsrt_neterrno(h);
s->eid = eid;
restart:
fd = srt_socket(cur_ai->ai_family, cur_ai->ai_socktype, 0);
@ -495,6 +495,7 @@ static int libsrt_setup(URLContext *h, const char *uri, int flags)
if (listen_fd >= 0)
srt_close(listen_fd);
freeaddrinfo(ai);
srt_epoll_release(s->eid);
return ret;
}
@ -584,7 +585,8 @@ static int libsrt_open(URLContext *h, const char *uri, int flags)
} else if (!strcmp(buf, "rendezvous")) {
s->mode = SRT_MODE_RENDEZVOUS;
} else {
return AVERROR(EIO);
ret = AVERROR(EINVAL);
goto err;
}
}
if (av_find_info_tag(buf, sizeof(buf), "sndbuf", p)) {
@ -632,10 +634,15 @@ static int libsrt_open(URLContext *h, const char *uri, int flags)
s->linger = strtol(buf, NULL, 10);
}
}
return libsrt_setup(h, uri, flags);
ret = libsrt_setup(h, uri, flags);
if (ret < 0)
goto err;
return 0;
err:
av_freep(&s->smoother);
av_freep(&s->streamid);
srt_cleanup();
return ret;
}