Merge remote-tracking branch 'qatar/master'

* qatar/master:
  http: Remove the custom function for disabling chunked posts
  rtsp: Disable chunked http post through AVOptions
  movdec: Set frame_size for AMR
  h264_weight: remove duplication functions.
  swscale: align vertical filtersize by 2 on x86.
  libavfilter: reindent.
  matroskadec: empty blocks are in fact valid.
  avfilter: don't abort() on zero-size allocations.
  h264: improve calculation of codec delay.
  movenc: Set a correct packet size for AMR-NB mode 15, "no data"
  avformat: Add functions for doing global network initialization
  avformat: Add the https protocol
  avformat: Add the tls protocol, using OpenSSL or gnutls
  avformat: Initialize gnutls in ff_tls_init()
  w32threads: Wrap the mutex functions in inline functions returning int
  configure: Allow linking to the gnutls library
  avformat: Add ff_tls_init()/deinit() that initialize OpenSSL
  configure: Allow linking to openssl
  avcodec: Allow locking and unlocking an avformat specific mutex
  avformat: Split out functions from network.h to a new file, network.c

Conflicts:
	Changelog
	configure
	doc/APIchanges
	libavcodec/internal.h
	libavcodec/version.h
	libavfilter/formats.c
	libavformat/matroskadec.c
	libavformat/mov.c
	libavformat/version.h

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

13 files changed, 499 insertions, 79 deletions

diff --git a/libavformat/Makefile b/libavformat/Makefile
index 94923265fb..264ab92611 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -16,6 +16,8 @@ OBJS = allformats.o         \
        seek.o               \
        utils.o              \
 
+OBJS-$(CONFIG_NETWORK)                   += network.o
+
 # muxers/demuxers
 OBJS-$(CONFIG_A64_MUXER)                 += a64.o
 OBJS-$(CONFIG_AAC_DEMUXER)               += aacdec.o rawdec.o
@@ -342,6 +344,7 @@ OBJS-$(CONFIG_CRYPTO_PROTOCOL)           += crypto.o
 OBJS-$(CONFIG_FILE_PROTOCOL)             += file.o
 OBJS-$(CONFIG_GOPHER_PROTOCOL)           += gopher.o
 OBJS-$(CONFIG_HTTP_PROTOCOL)             += http.o httpauth.o
+OBJS-$(CONFIG_HTTPS_PROTOCOL)            += http.o httpauth.o
 OBJS-$(CONFIG_MMSH_PROTOCOL)             += mmsh.o mms.o asf.o
 OBJS-$(CONFIG_MMST_PROTOCOL)             += mmst.o mms.o asf.o
 OBJS-$(CONFIG_MD5_PROTOCOL)              += md5proto.o
@@ -354,6 +357,7 @@ OBJS-$(CONFIG_RTMP_PROTOCOL)             += $(RTMP-OBJS-yes)
 
 OBJS-$(CONFIG_RTP_PROTOCOL)              += rtpproto.o
 OBJS-$(CONFIG_TCP_PROTOCOL)              += tcp.o
+OBJS-$(CONFIG_TLS_PROTOCOL)              += tls.o
 OBJS-$(CONFIG_UDP_PROTOCOL)              += udp.o
 
 
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index cc9a902c7d..ced4b0a217 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -258,6 +258,7 @@ void av_register_all(void)
     REGISTER_PROTOCOL (FILE, file);
     REGISTER_PROTOCOL (GOPHER, gopher);
     REGISTER_PROTOCOL (HTTP, http);
+    REGISTER_PROTOCOL (HTTPS, https);
     REGISTER_PROTOCOL (MMSH, mmsh);
     REGISTER_PROTOCOL (MMST, mmst);
     REGISTER_PROTOCOL (MD5,  md5);
@@ -271,5 +272,6 @@ void av_register_all(void)
 #endif
     REGISTER_PROTOCOL (RTP, rtp);
     REGISTER_PROTOCOL (TCP, tcp);
+    REGISTER_PROTOCOL (TLS, tls);
     REGISTER_PROTOCOL (UDP, udp);
 }
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 90cf3ad44d..0fcc38baf9 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -1855,4 +1855,19 @@ int avformat_query_codec(AVOutputFormat *ofmt, enum CodecID codec_id, int std_co
  */
 const AVClass *avformat_get_class(void);
 
+/**
+ * Do global initialization of network components. This is optional,
+ * but recommended, since it avoids the overhead of implicitly
+ * doing the setup for each session.
+ *
+ * Since the next major version bump, calling this function will become
+ * mandatory if using network protocols.
+ */
+int avformat_network_init(void);
+
+/**
+ * Undo the initialization done by avformat_network_init.
+ */
+int avformat_network_deinit(void);
+
 #endif /* AVFORMAT_AVFORMAT_H */
diff --git a/libavformat/http.c b/libavformat/http.c
index 76e5a0fb07..414eb8719f 100644
--- a/libavformat/http.c
+++ b/libavformat/http.c
@@ -77,11 +77,6 @@ void ff_http_set_headers(URLContext *h, const char *headers)
     av_strlcpy(s->headers, headers, sizeof(s->headers));
 }
 
-void ff_http_set_chunked_transfer_encoding(URLContext *h, int is_chunked)
-{
-    ((HTTPContext*)h->priv_data)->chunksize = is_chunked ? 0 : -1;
-}
-
 void ff_http_init_auth_state(URLContext *dest, const URLContext *src)
 {
     memcpy(&((HTTPContext*)dest->priv_data)->auth_state,
@@ -91,8 +86,8 @@ void ff_http_init_auth_state(URLContext *dest, const URLContext *src)
 /* return non zero if error */
 static int http_open_cnx(URLContext *h)
 {
-    const char *path, *proxy_path;
-    char hostname[1024], hoststr[1024];
+    const char *path, *proxy_path, *lower_proto = "tcp";
+    char hostname[1024], hoststr[1024], proto[10];
     char auth[1024];
     char path1[1024];
     char buf[1024];
@@ -108,7 +103,8 @@ static int http_open_cnx(URLContext *h)
     /* fill the dest addr */
  redo:
     /* needed in any case to build the host string */
-    av_url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port,
+    av_url_split(proto, sizeof(proto), auth, sizeof(auth),
+                 hostname, sizeof(hostname), &port,
                  path1, sizeof(path1), s->location);
     ff_url_join(hoststr, sizeof(hoststr), NULL, NULL, hostname, port, NULL);
 
@@ -122,10 +118,15 @@ static int http_open_cnx(URLContext *h)
         else
             path = path1;
     }
+    if (!strcmp(proto, "https")) {
+        lower_proto = "tls";
+        if (port < 0)
+            port = 443;
+    }
     if (port < 0)
         port = 80;
 
-    ff_url_join(buf, sizeof(buf), "tcp", NULL, hostname, port, NULL);
+    ff_url_join(buf, sizeof(buf), lower_proto, NULL, hostname, port, NULL);
     err = ffurl_open(&hd, buf, AVIO_FLAG_READ_WRITE);
     if (err < 0)
         goto fail;
@@ -508,6 +509,7 @@ http_get_file_handle(URLContext *h)
     return ffurl_get_file_handle(s->hd);
 }
 
+#if CONFIG_HTTP_PROTOCOL
 URLProtocol ff_http_protocol = {
     .name                = "http",
     .url_open            = http_open,
@@ -519,3 +521,17 @@ URLProtocol ff_http_protocol = {
     .priv_data_size      = sizeof(HTTPContext),
     .priv_data_class     = &httpcontext_class,
 };
+#endif
+#if CONFIG_HTTPS_PROTOCOL
+URLProtocol ff_https_protocol = {
+    .name                = "https",
+    .url_open            = http_open,
+    .url_read            = http_read,
+    .url_write           = http_write,
+    .url_seek            = http_seek,
+    .url_close           = http_close,
+    .url_get_file_handle = http_get_file_handle,
+    .priv_data_size      = sizeof(HTTPContext),
+    .priv_data_class     = &httpcontext_class,
+};
+#endif
diff --git a/libavformat/http.h b/libavformat/http.h
index d01a004e9f..19c4099ef0 100644
--- a/libavformat/http.h
+++ b/libavformat/http.h
@@ -43,14 +43,6 @@
 void ff_http_set_headers(URLContext *h, const char *headers);
 
 /**
- * Enable or disable chunked transfer encoding. (default is enabled)
- *
- * @param h URL context for this HTTP connection
- * @param is_chunked 0 to disable chunking, nonzero otherwise.
- */
-void ff_http_set_chunked_transfer_encoding(URLContext *h, int is_chunked);
-
-/**
  * Initialize the authentication state based on another HTTP URLContext.
  * This can be used to pre-initialize the authentication parameters if
  * they are known beforehand, to avoid having to do an initial failing
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index abedcd7bb8..b47f4de8d4 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -1750,11 +1750,12 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data,
     size -= n;
 
     track = matroska_find_track_by_num(matroska, num);
-    if (size <= 3 || !track || !track->stream) {
+    if (!track || !track->stream) {
         av_log(matroska->ctx, AV_LOG_INFO,
                "Invalid stream %"PRIu64" or size %u\n", num, size);
         return res;
-    }
+    } else if (size <= 3)
+        return 0;
     st = track->stream;
     if (st->discard >= AVDISCARD_ALL)
         return res;
diff --git a/libavformat/mov.c b/libavformat/mov.c
index c90004cbae..e6efe27195 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -1346,17 +1346,16 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
         st->codec->channels= 1; /* really needed */
         break;
     case CODEC_ID_AMR_NB:
-    case CODEC_ID_AMR_WB:
-        st->codec->frame_size= sc->samples_per_frame;
         st->codec->channels= 1; /* really needed */
         /* force sample rate for amr, stsd in 3gp does not store sample rate */
-        if (st->codec->codec_id == CODEC_ID_AMR_NB) {
-            st->codec->sample_rate = 8000;
-            st->codec->frame_size  = 160;
-        } else if (st->codec->codec_id == CODEC_ID_AMR_WB) {
-            st->codec->sample_rate = 16000;
-            st->codec->frame_size  = 320;
-        }
+        st->codec->sample_rate = 8000;
+        /* force frame_size, too, samples_per_frame isn't always set properly */
+        st->codec->frame_size  = 160;
+        break;
+    case CODEC_ID_AMR_WB:
+        st->codec->channels    = 1;
+        st->codec->sample_rate = 16000;
+        st->codec->frame_size  = 320;
         break;
     case CODEC_ID_MP2:
     case CODEC_ID_MP3:
diff --git a/libavformat/network.c b/libavformat/network.c
new file mode 100644
index 0000000000..33435cf524
--- /dev/null
+++ b/libavformat/network.c
@@ -0,0 +1,176 @@
+/*
+ * Copyright (c) 2007 The Libav Project
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/avutil.h"
+#include "network.h"
+#include "libavcodec/internal.h"
+
+#define THREADS (HAVE_PTHREADS || (defined(WIN32) && !defined(__MINGW32CE__)))
+
+#if THREADS
+#if HAVE_PTHREADS
+#include <pthread.h>
+#else
+#include "libavcodec/w32pthreads.h"
+#endif
+#endif
+
+#if CONFIG_OPENSSL
+#include <openssl/ssl.h>
+static int openssl_init;
+#if THREADS
+#include <openssl/crypto.h>
+#include "libavutil/avutil.h"
+pthread_mutex_t *openssl_mutexes;
+static void openssl_lock(int mode, int type, const char *file, int line)
+{
+    if (mode & CRYPTO_LOCK)
+        pthread_mutex_lock(&openssl_mutexes[type]);
+    else
+        pthread_mutex_unlock(&openssl_mutexes[type]);
+}
+#ifndef WIN32
+static unsigned long openssl_thread_id(void)
+{
+    return (intptr_t) pthread_self();
+}
+#endif
+#endif
+#endif
+#if CONFIG_GNUTLS
+#include <gnutls/gnutls.h>
+#if THREADS && GNUTLS_VERSION_NUMBER <= 0x020b00
+#include <gcrypt.h>
+#include <errno.h>
+#undef malloc
+#undef free
+GCRY_THREAD_OPTION_PTHREAD_IMPL;
+#endif
+#endif
+
+void ff_tls_init(void)
+{
+    avpriv_lock_avformat();
+#if CONFIG_OPENSSL
+    if (!openssl_init) {
+        SSL_library_init();
+        SSL_load_error_strings();
+#if THREADS
+        if (!CRYPTO_get_locking_callback()) {
+            int i;
+            openssl_mutexes = av_malloc(sizeof(pthread_mutex_t) * CRYPTO_num_locks());
+            for (i = 0; i < CRYPTO_num_locks(); i++)
+                pthread_mutex_init(&openssl_mutexes[i], NULL);
+            CRYPTO_set_locking_callback(openssl_lock);
+#ifndef WIN32
+            CRYPTO_set_id_callback(openssl_thread_id);
+#endif
+        }
+#endif
+    }
+    openssl_init++;
+#endif
+#if CONFIG_GNUTLS
+#if THREADS && GNUTLS_VERSION_NUMBER < 0x020b00
+    if (gcry_control(GCRYCTL_ANY_INITIALIZATION_P) == 0)
+        gcry_control(GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread);
+#endif
+    gnutls_global_init();
+#endif
+    avpriv_unlock_avformat();
+}
+
+void ff_tls_deinit(void)
+{
+    avpriv_lock_avformat();
+#if CONFIG_OPENSSL
+    openssl_init--;
+    if (!openssl_init) {
+#if THREADS
+        if (CRYPTO_get_locking_callback() == openssl_lock) {
+            int i;
+            CRYPTO_set_locking_callback(NULL);
+            for (i = 0; i < CRYPTO_num_locks(); i++)
+                pthread_mutex_destroy(&openssl_mutexes[i]);
+            av_free(openssl_mutexes);
+        }
+#endif
+    }
+#endif
+#if CONFIG_GNUTLS
+    gnutls_global_deinit();
+#endif
+    avpriv_unlock_avformat();
+}
+
+int ff_network_init(void)
+{
+#if HAVE_WINSOCK2_H
+    WSADATA wsaData;
+    if (WSAStartup(MAKEWORD(1,1), &wsaData))
+        return 0;
+#endif
+    return 1;
+}
+
+int ff_network_wait_fd(int fd, int write)
+{
+    int ev = write ? POLLOUT : POLLIN;
+    struct pollfd p = { .fd = fd, .events = ev, .revents = 0 };
+    int ret;
+    ret = poll(&p, 1, 100);
+    return ret < 0 ? ff_neterrno() : p.revents & (ev | POLLERR | POLLHUP) ? 0 : AVERROR(EAGAIN);
+}
+
+void ff_network_close(void)
+{
+#if HAVE_WINSOCK2_H
+    WSACleanup();
+#endif
+}
+
+#if HAVE_WINSOCK2_H
+int ff_neterrno(void)
+{
+    int err = WSAGetLastError();
+    switch (err) {
+    case WSAEWOULDBLOCK:
+        return AVERROR(EAGAIN);
+    case WSAEINTR:
+        return AVERROR(EINTR);
+    }
+    return -err;
+}
+#endif
+
+int ff_is_multicast_address(struct sockaddr *addr)
+{
+    if (addr->sa_family == AF_INET) {
+        return IN_MULTICAST(ntohl(((struct sockaddr_in *)addr)->sin_addr.s_addr));
+    }
+#if HAVE_STRUCT_SOCKADDR_IN6
+    if (addr->sa_family == AF_INET6) {
+        return IN6_IS_ADDR_MULTICAST(&((struct sockaddr_in6 *)addr)->sin6_addr);
+    }
+#endif
+
+    return 0;
+}
+
diff --git a/libavformat/network.h b/libavformat/network.h
index f7e19b196e..cfbbd83ab2 100644
--- a/libavformat/network.h
+++ b/libavformat/network.h
@@ -36,17 +36,7 @@
 #define ECONNREFUSED    WSAECONNREFUSED
 #define EINPROGRESS     WSAEINPROGRESS
 
-static inline int ff_neterrno(void)
-{
-    int err = WSAGetLastError();
-    switch (err) {
-    case WSAEWOULDBLOCK:
-        return AVERROR(EAGAIN);
-    case WSAEINTR:
-        return AVERROR(EINTR);
-    }
-    return -err;
-}
+int ff_neterrno(void);
 #else
 #include <sys/types.h>
 #include <sys/socket.h>
@@ -66,31 +56,13 @@ static inline int ff_neterrno(void)
 
 int ff_socket_nonblock(int socket, int enable);
 
-static inline int ff_network_init(void)
-{
-#if HAVE_WINSOCK2_H
-    WSADATA wsaData;
-    if (WSAStartup(MAKEWORD(1,1), &wsaData))
-        return 0;
-#endif
-    return 1;
-}
-
-static inline int ff_network_wait_fd(int fd, int write)
-{
-    int ev = write ? POLLOUT : POLLIN;
-    struct pollfd p = { .fd = fd, .events = ev, .revents = 0 };
-    int ret;
-    ret = poll(&p, 1, 100);
-    return ret < 0 ? ff_neterrno() : p.revents & (ev | POLLERR | POLLHUP) ? 0 : AVERROR(EAGAIN);
-}
-
-static inline void ff_network_close(void)
-{
-#if HAVE_WINSOCK2_H
-    WSACleanup();
-#endif
-}
+int ff_network_init(void);
+void ff_network_close(void);
+
+void ff_tls_init(void);
+void ff_tls_deinit(void);
+
+int ff_network_wait_fd(int fd, int write);
 
 int ff_inet_aton (const char * str, struct in_addr * add);
 
@@ -191,18 +163,6 @@ const char *ff_gai_strerror(int ecode);
 #define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff)
 #endif
 
-static inline int ff_is_multicast_address(struct sockaddr *addr)
-{
-    if (addr->sa_family == AF_INET) {
-        return IN_MULTICAST(ntohl(((struct sockaddr_in *)addr)->sin_addr.s_addr));
-    }
-#if HAVE_STRUCT_SOCKADDR_IN6
-    if (addr->sa_family == AF_INET6) {
-        return IN6_IS_ADDR_MULTICAST(&((struct sockaddr_in6 *)addr)->sin6_addr);
-    }
-#endif
-
-    return 0;
-}
+int ff_is_multicast_address(struct sockaddr *addr);
 
 #endif /* AVFORMAT_NETWORK_H */
diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index 5966e813b7..b23100df62 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -26,6 +26,7 @@
 #include "libavutil/parseutils.h"
 #include "libavutil/random_seed.h"
 #include "libavutil/dict.h"
+#include "libavutil/opt.h"
 #include "avformat.h"
 #include "avio_internal.h"
 
@@ -1482,7 +1483,7 @@ redirect:
                  "Expires: Sun, 9 Jan 1972 00:00:00 GMT\r\n",
                  sessioncookie);
         ff_http_set_headers(rt->rtsp_hd_out, headers);
-        ff_http_set_chunked_transfer_encoding(rt->rtsp_hd_out, 0);
+        av_opt_set(rt->rtsp_hd_out->priv_data, "chunksize", "-1", 0);
 
         /* Initialize the authentication state for the POST session. The HTTP
          * protocol implementation doesn't properly handle multi-pass
diff --git a/libavformat/tls.c b/libavformat/tls.c
new file mode 100644
index 0000000000..85bf46f903
--- /dev/null
+++ b/libavformat/tls.c
@@ -0,0 +1,234 @@
+/*
+ * TLS/SSL Protocol
+ * Copyright (c) 2011 Martin Storsjo
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avformat.h"
+#include "url.h"
+#include "libavutil/avstring.h"
+#if CONFIG_GNUTLS
+#include <gnutls/gnutls.h>
+#define TLS_read(c, buf, size)  gnutls_record_recv(c->session, buf, size)
+#define TLS_write(c, buf, size) gnutls_record_send(c->session, buf, size)
+#define TLS_shutdown(c)         gnutls_bye(c->session, GNUTLS_SHUT_RDWR)
+#define TLS_free(c) do { \
+        if (c->session) \
+            gnutls_deinit(c->session); \
+        if (c->cred) \
+            gnutls_certificate_free_credentials(c->cred); \
+    } while (0)
+#elif CONFIG_OPENSSL
+#include <openssl/bio.h>
+#include <openssl/ssl.h>
+#include <openssl/err.h>
+#define TLS_read(c, buf, size)  SSL_read(c->ssl,  buf, size)
+#define TLS_write(c, buf, size) SSL_write(c->ssl, buf, size)
+#define TLS_shutdown(c)         SSL_shutdown(c->ssl)
+#define TLS_free(c) do { \
+        if (c->ssl) \
+            SSL_free(c->ssl); \
+        if (c->ctx) \
+            SSL_CTX_free(c->ctx); \
+    } while (0)
+#endif
+#include "network.h"
+#include "os_support.h"
+#include "internal.h"
+#if HAVE_POLL_H
+#include <poll.h>
+#endif
+
+typedef struct {
+    const AVClass *class;
+    URLContext *tcp;
+#if CONFIG_GNUTLS
+    gnutls_session_t session;
+    gnutls_certificate_credentials_t cred;
+#elif CONFIG_OPENSSL
+    SSL_CTX *ctx;
+    SSL *ssl;
+#endif
+    int fd;
+} TLSContext;
+
+static int do_tls_poll(URLContext *h, int ret)
+{
+    TLSContext *c = h->priv_data;
+    struct pollfd p = { c->fd, 0, 0 };
+#if CONFIG_GNUTLS
+    if (ret != GNUTLS_E_AGAIN && ret != GNUTLS_E_INTERRUPTED) {
+        av_log(NULL, AV_LOG_ERROR, "%s\n", gnutls_strerror(ret));
+        return AVERROR(EIO);
+    }
+    if (gnutls_record_get_direction(c->session))
+        p.events = POLLOUT;
+    else
+        p.events = POLLIN;
+#elif CONFIG_OPENSSL
+    ret = SSL_get_error(c->ssl, ret);
+    if (ret == SSL_ERROR_WANT_READ) {
+        p.events = POLLIN;
+    } else if (ret == SSL_ERROR_WANT_WRITE) {
+        p.events = POLLOUT;
+    } else {
+        av_log(NULL, AV_LOG_ERROR, "%s\n", ERR_error_string(ret, NULL));
+        return AVERROR(EIO);
+    }
+#endif
+    if (h->flags & URL_FLAG_NONBLOCK)
+        return AVERROR(EAGAIN);
+    while (1) {
+        int n = poll(&p, 1, 100);
+        if (n > 0)
+            break;
+        if (url_interrupt_cb())
+            return AVERROR(EINTR);
+    }
+    return 0;
+}
+
+static int tls_open(URLContext *h, const char *uri, int flags)
+{
+    TLSContext *c = h->priv_data;
+    int ret;
+    int port;
+    char buf[200], host[200];
+    int numerichost = 0;
+    struct addrinfo hints = { 0 }, *ai = NULL;
+
+    ff_tls_init();
+
+    av_url_split(NULL, 0, NULL, 0, host, sizeof(host), &port, NULL, 0, uri);
+    ff_url_join(buf, sizeof(buf), "tcp", NULL, host, port, NULL);
+
+    hints.ai_flags = AI_NUMERICHOST;
+    if (!getaddrinfo(host, NULL, &hints, &ai)) {
+        numerichost = 1;
+        freeaddrinfo(ai);
+    }
+
+    ret = ffurl_open(&c->tcp, buf, AVIO_FLAG_READ_WRITE);
+    if (ret)
+        goto fail;
+    c->fd = ffurl_get_file_handle(c->tcp);
+
+#if CONFIG_GNUTLS
+    gnutls_init(&c->session, GNUTLS_CLIENT);
+    if (!numerichost)
+        gnutls_server_name_set(c->session, GNUTLS_NAME_DNS, host, strlen(host));
+    gnutls_certificate_allocate_credentials(&c->cred);
+    gnutls_certificate_set_verify_flags(c->cred, 0);
+    gnutls_credentials_set(c->session, GNUTLS_CRD_CERTIFICATE, c->cred);
+    gnutls_transport_set_ptr(c->session, (gnutls_transport_ptr_t)
+                                         (intptr_t) c->fd);
+    gnutls_priority_set_direct(c->session, "NORMAL", NULL);
+    while (1) {
+        ret = gnutls_handshake(c->session);
+        if (ret == 0)
+            break;
+        if ((ret = do_tls_poll(h, ret)) < 0)
+            goto fail;
+    }
+#elif CONFIG_OPENSSL
+    c->ctx = SSL_CTX_new(SSLv3_client_method());
+    if (!c->ctx) {
+        av_log(NULL, AV_LOG_ERROR, "%s\n", ERR_error_string(ERR_get_error(), NULL));
+        ret = AVERROR(EIO);
+        goto fail;
+    }
+    c->ssl = SSL_new(c->ctx);
+    if (!c->ssl) {
+        av_log(NULL, AV_LOG_ERROR, "%s\n", ERR_error_string(ERR_get_error(), NULL));
+        ret = AVERROR(EIO);
+        goto fail;
+    }
+    SSL_set_fd(c->ssl, c->fd);
+    if (!numerichost)
+        SSL_set_tlsext_host_name(c->ssl, host);
+    while (1) {
+        ret = SSL_connect(c->ssl);
+        if (ret > 0)
+            break;
+        if (ret == 0) {
+            av_log(NULL, AV_LOG_ERROR, "Unable to negotiate TLS/SSL session\n");
+            ret = AVERROR(EIO);
+            goto fail;
+        }
+        if ((ret = do_tls_poll(h, ret)) < 0)
+            goto fail;
+    }
+#endif
+    return 0;
+fail:
+    TLS_free(c);
+    if (c->tcp)
+        ffurl_close(c->tcp);
+    ff_tls_deinit();
+    return ret;
+}
+
+static int tls_read(URLContext *h, uint8_t *buf, int size)
+{
+    TLSContext *c = h->priv_data;
+    while (1) {
+        int ret = TLS_read(c, buf, size);
+        if (ret > 0)
+            return ret;
+        if (ret == 0)
+            return AVERROR(EIO);
+        if ((ret = do_tls_poll(h, ret)) < 0)
+            return ret;
+    }
+    return 0;
+}
+
+static int tls_write(URLContext *h, const uint8_t *buf, int size)
+{
+    TLSContext *c = h->priv_data;
+    while (1) {
+        int ret = TLS_write(c, buf, size);
+        if (ret > 0)
+            return ret;
+        if (ret == 0)
+            return AVERROR(EIO);
+        if ((ret = do_tls_poll(h, ret)) < 0)
+            return ret;
+    }
+    return 0;
+}
+
+static int tls_close(URLContext *h)
+{
+    TLSContext *c = h->priv_data;
+    TLS_shutdown(c);
+    TLS_free(c);
+    ffurl_close(c->tcp);
+    ff_tls_deinit();
+    return 0;
+}
+
+URLProtocol ff_tls_protocol = {
+    .name           = "tls",
+    .url_open       = tls_open,
+    .url_read       = tls_read,
+    .url_write      = tls_write,
+    .url_seek       = NULL,
+    .url_close      = tls_close,
+    .priv_data_size = sizeof(TLSContext),
+};
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 43991765df..f38e084442 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -4186,3 +4186,23 @@ int avformat_query_codec(AVOutputFormat *ofmt, enum CodecID codec_id, int std_co
     }
     return AVERROR_PATCHWELCOME;
 }
+
+int avformat_network_init(void)
+{
+#if CONFIG_NETWORK
+    int ret;
+    if ((ret = ff_network_init()) < 0)
+        return ret;
+    ff_tls_init();
+#endif
+    return 0;
+}
+
+int avformat_network_deinit(void)
+{
+#if CONFIG_NETWORK
+    ff_network_close();
+    ff_tls_deinit();
+#endif
+    return 0;
+}
diff --git a/libavformat/version.h b/libavformat/version.h
index c3c8d2b19d..bc427d3f4e 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -24,7 +24,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFORMAT_VERSION_MAJOR 53
-#define LIBAVFORMAT_VERSION_MINOR 18
+#define LIBAVFORMAT_VERSION_MINOR 19
 #define LIBAVFORMAT_VERSION_MICRO  0
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \