diff --git a/libavformat/async.c b/libavformat/async.c
index 0cc6fb0e27..54dbd2312a 100644
--- a/libavformat/async.c
+++ b/libavformat/async.c
@@ -251,7 +251,7 @@ static int async_open(URLContext *h, const char *arg, int flags, AVDictionary **
 
     /* wrap interrupt callback */
     c->interrupt_callback = h->interrupt_callback;
-    ret = ffurl_open_whitelist(&c->inner, arg, flags, &interrupt_callback, options, h->protocol_whitelist, h->protocol_blacklist);
+    ret = ffurl_open_whitelist(&c->inner, arg, flags, &interrupt_callback, options, h->protocol_whitelist, h->protocol_blacklist, h);
     if (ret != 0) {
         av_log(h, AV_LOG_ERROR, "ffurl_open failed : %s, %s\n", av_err2str(ret), arg);
         goto url_fail;
diff --git a/libavformat/avio.c b/libavformat/avio.c
index 7e68c9a6e9..65075932ae 100644
--- a/libavformat/avio.c
+++ b/libavformat/avio.c
@@ -305,13 +305,16 @@ int ffurl_alloc(URLContext **puc, const char *filename, int flags,
 
 int ffurl_open_whitelist(URLContext **puc, const char *filename, int flags,
                          const AVIOInterruptCB *int_cb, AVDictionary **options,
-                         const char *whitelist, const char* blacklist)
+                         const char *whitelist, const char* blacklist,
+                         URLContext *parent)
 {
     AVDictionary *tmp_opts = NULL;
     AVDictionaryEntry *e;
     int ret = ffurl_alloc(puc, filename, flags, int_cb);
     if (ret < 0)
         return ret;
+    if (parent)
+        av_opt_copy(*puc, parent);
     if (options &&
         (ret = av_opt_set_dict(*puc, options)) < 0)
         goto fail;
@@ -352,7 +355,7 @@ int ffurl_open(URLContext **puc, const char *filename, int flags,
                const AVIOInterruptCB *int_cb, AVDictionary **options)
 {
     return ffurl_open_whitelist(puc, filename, flags,
-                                int_cb, options, NULL, NULL);
+                                int_cb, options, NULL, NULL, NULL);
 }
 
 static inline int retry_transfer_wrapper(URLContext *h, uint8_t *buf,
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index f2f03f639f..f02ae21dfd 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -989,7 +989,7 @@ int ffio_open_whitelist(AVIOContext **s, const char *filename, int flags,
     URLContext *h;
     int err;
 
-    err = ffurl_open_whitelist(&h, filename, flags, int_cb, options, whitelist, blacklist);
+    err = ffurl_open_whitelist(&h, filename, flags, int_cb, options, whitelist, blacklist, NULL);
     if (err < 0)
         return err;
     err = ffio_fdopen(s, h);
diff --git a/libavformat/cache.c b/libavformat/cache.c
index 25b28d585f..6aabca2e78 100644
--- a/libavformat/cache.c
+++ b/libavformat/cache.c
@@ -87,7 +87,7 @@ static int cache_open(URLContext *h, const char *arg, int flags, AVDictionary **
     av_freep(&buffername);
 
     return ffurl_open_whitelist(&c->inner, arg, flags, &h->interrupt_callback,
-                                options, h->protocol_whitelist, h->protocol_blacklist);
+                                options, h->protocol_whitelist, h->protocol_blacklist, h);
 }
 
 static int add_entry(URLContext *h, const unsigned char *buf, int size)
diff --git a/libavformat/concat.c b/libavformat/concat.c
index 288bf14452..46b520fe80 100644
--- a/libavformat/concat.c
+++ b/libavformat/concat.c
@@ -98,7 +98,7 @@ static av_cold int concat_open(URLContext *h, const char *uri, int flags)
 
         /* creating URLContext */
         err = ffurl_open_whitelist(&uc, node_uri, flags,
-                                   &h->interrupt_callback, NULL, h->protocol_whitelist, h->protocol_blacklist);
+                                   &h->interrupt_callback, NULL, h->protocol_whitelist, h->protocol_blacklist, h);
         if (err < 0)
             break;
 
diff --git a/libavformat/crypto.c b/libavformat/crypto.c
index 4222e1e33f..2999f50046 100644
--- a/libavformat/crypto.c
+++ b/libavformat/crypto.c
@@ -138,7 +138,7 @@ static int crypto_open2(URLContext *h, const char *uri, int flags, AVDictionary
 
     if ((ret = ffurl_open_whitelist(&c->hd, nested_url, flags,
                                     &h->interrupt_callback, options,
-                                    h->protocol_whitelist, h->protocol_blacklist)) < 0) {
+                                    h->protocol_whitelist, h->protocol_blacklist, h)) < 0) {
         av_log(h, AV_LOG_ERROR, "Unable to open resource: %s\n", nested_url);
         goto err;
     }
diff --git a/libavformat/ftp.c b/libavformat/ftp.c
index b9fee2450e..0663b47bc4 100644
--- a/libavformat/ftp.c
+++ b/libavformat/ftp.c
@@ -543,7 +543,7 @@ static int ftp_connect_control_connection(URLContext *h)
         } /* if option is not given, don't pass it and let tcp use its own default */
         err = ffurl_open_whitelist(&s->conn_control, buf, AVIO_FLAG_READ_WRITE,
                                    &h->interrupt_callback, &opts,
-                                   h->protocol_whitelist, h->protocol_blacklist);
+                                   h->protocol_whitelist, h->protocol_blacklist, h);
         av_dict_free(&opts);
         if (err < 0) {
             av_log(h, AV_LOG_ERROR, "Cannot open control connection\n");
@@ -597,7 +597,7 @@ static int ftp_connect_data_connection(URLContext *h)
         } /* if option is not given, don't pass it and let tcp use its own default */
         err = ffurl_open_whitelist(&s->conn_data, buf, h->flags,
                                    &h->interrupt_callback, &opts,
-                                   h->protocol_whitelist, h->protocol_blacklist);
+                                   h->protocol_whitelist, h->protocol_blacklist, h);
         av_dict_free(&opts);
         if (err < 0)
             return err;
diff --git a/libavformat/gopher.c b/libavformat/gopher.c
index d1113e74e9..3070b24caf 100644
--- a/libavformat/gopher.c
+++ b/libavformat/gopher.c
@@ -94,7 +94,7 @@ static int gopher_open(URLContext *h, const char *uri, int flags)
 
     s->hd = NULL;
     err = ffurl_open_whitelist(&s->hd, buf, AVIO_FLAG_READ_WRITE,
-                               &h->interrupt_callback, NULL, h->protocol_whitelist, h->protocol_blacklist);
+                               &h->interrupt_callback, NULL, h->protocol_whitelist, h->protocol_blacklist, h);
     if (err < 0)
         goto fail;
 
diff --git a/libavformat/hlsproto.c b/libavformat/hlsproto.c
index 097e5203c3..2b19ed0cf6 100644
--- a/libavformat/hlsproto.c
+++ b/libavformat/hlsproto.c
@@ -307,7 +307,7 @@ retry:
     av_log(h, AV_LOG_DEBUG, "opening %s\n", url);
     ret = ffurl_open_whitelist(&s->seg_hd, url, AVIO_FLAG_READ,
                                &h->interrupt_callback, NULL,
-                               h->protocol_whitelist, h->protocol_blacklist);
+                               h->protocol_whitelist, h->protocol_blacklist, h);
     if (ret < 0) {
         if (ff_check_interrupt(&h->interrupt_callback))
             return AVERROR_EXIT;
diff --git a/libavformat/http.c b/libavformat/http.c
index 814ca014ce..622814bb05 100644
--- a/libavformat/http.c
+++ b/libavformat/http.c
@@ -221,7 +221,7 @@ static int http_open_cnx_internal(URLContext *h, AVDictionary **options)
     if (!s->hd) {
         err = ffurl_open_whitelist(&s->hd, buf, AVIO_FLAG_READ_WRITE,
                                    &h->interrupt_callback, options,
-                                   h->protocol_whitelist, h->protocol_blacklist);
+                                   h->protocol_whitelist, h->protocol_blacklist, h);
         if (err < 0)
             return err;
     }
@@ -456,7 +456,7 @@ static int http_listen(URLContext *h, const char *uri, int flags,
         goto fail;
     if ((ret = ffurl_open_whitelist(&s->hd, lower_url, AVIO_FLAG_READ_WRITE,
                                     &h->interrupt_callback, options,
-                                    h->protocol_whitelist, h->protocol_blacklist
+                                    h->protocol_whitelist, h->protocol_blacklist, h
                                    )) < 0)
         goto fail;
     s->handshake_step = LOWER_PROTO;
@@ -1582,7 +1582,7 @@ static int http_proxy_open(URLContext *h, const char *uri, int flags)
 redo:
     ret = ffurl_open_whitelist(&s->hd, lower_url, AVIO_FLAG_READ_WRITE,
                                &h->interrupt_callback, NULL,
-                               h->protocol_whitelist, h->protocol_blacklist);
+                               h->protocol_whitelist, h->protocol_blacklist, h);
     if (ret < 0)
         return ret;
 
diff --git a/libavformat/icecast.c b/libavformat/icecast.c
index f7ca5cb30c..02e3e38788 100644
--- a/libavformat/icecast.c
+++ b/libavformat/icecast.c
@@ -165,7 +165,7 @@ static int icecast_open(URLContext *h, const char *uri, int flags)
     ff_url_join(h_url, sizeof(h_url), "http", auth, host, port, "%s", path);
     // Finally open http proto handler
     ret = ffurl_open_whitelist(&s->hd, h_url, AVIO_FLAG_READ_WRITE, NULL,
-                               &opt_dict, h->protocol_whitelist, h->protocol_blacklist);
+                               &opt_dict, h->protocol_whitelist, h->protocol_blacklist, h);
 
 cleanup:
     av_freep(&user);
diff --git a/libavformat/md5proto.c b/libavformat/md5proto.c
index 2df34c6350..0e04b90aac 100644
--- a/libavformat/md5proto.c
+++ b/libavformat/md5proto.c
@@ -71,7 +71,7 @@ static int md5_close(URLContext *h)
     if (*filename) {
         err = ffurl_open_whitelist(&out, filename, AVIO_FLAG_WRITE,
                                    &h->interrupt_callback, NULL,
-                                   h->protocol_whitelist, h->protocol_blacklist);
+                                   h->protocol_whitelist, h->protocol_blacklist, h);
         if (err)
             return err;
         err = ffurl_write(out, buf, i*2+1);
diff --git a/libavformat/mmst.c b/libavformat/mmst.c
index 0f48b4615e..1d13959f58 100644
--- a/libavformat/mmst.c
+++ b/libavformat/mmst.c
@@ -530,7 +530,7 @@ static int mms_open(URLContext *h, const char *uri, int flags)
     ff_url_join(tcpname, sizeof(tcpname), "tcp", NULL, mmst->host, port, NULL);
     err = ffurl_open_whitelist(&mms->mms_hd, tcpname, AVIO_FLAG_READ_WRITE,
                                &h->interrupt_callback, NULL,
-                               h->protocol_whitelist, h->protocol_blacklist);
+                               h->protocol_whitelist, h->protocol_blacklist, h);
     if (err)
         goto fail;
 
diff --git a/libavformat/rtmpcrypt.c b/libavformat/rtmpcrypt.c
index 3d5eb22392..c41ae4308f 100644
--- a/libavformat/rtmpcrypt.c
+++ b/libavformat/rtmpcrypt.c
@@ -266,7 +266,7 @@ static int rtmpe_open(URLContext *h, const char *uri, int flags)
     /* open the tcp or ffrtmphttp connection */
     if ((ret = ffurl_open_whitelist(&rt->stream, url, AVIO_FLAG_READ_WRITE,
                                     &h->interrupt_callback, NULL,
-                                    h->protocol_whitelist, h->protocol_blacklist)) < 0) {
+                                    h->protocol_whitelist, h->protocol_blacklist, h)) < 0) {
         rtmpe_close(h);
         return ret;
     }
diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
index c01bc40204..18d915a5ee 100644
--- a/libavformat/rtmpproto.c
+++ b/libavformat/rtmpproto.c
@@ -1120,7 +1120,7 @@ static int rtmp_calc_swfhash(URLContext *s)
     /* Get the SWF player file. */
     if ((ret = ffurl_open_whitelist(&stream, rt->swfverify, AVIO_FLAG_READ,
                                     &s->interrupt_callback, NULL,
-                                    s->protocol_whitelist, s->protocol_blacklist)) < 0) {
+                                    s->protocol_whitelist, s->protocol_blacklist, s)) < 0) {
         av_log(s, AV_LOG_ERROR, "Cannot open connection %s.\n", rt->swfverify);
         goto fail;
     }
@@ -2650,7 +2650,7 @@ static int rtmp_open(URLContext *s, const char *uri, int flags)
 reconnect:
     if ((ret = ffurl_open_whitelist(&rt->stream, buf, AVIO_FLAG_READ_WRITE,
                                     &s->interrupt_callback, &opts,
-                                    s->protocol_whitelist, s->protocol_blacklist)) < 0) {
+                                    s->protocol_whitelist, s->protocol_blacklist, s)) < 0) {
         av_log(s , AV_LOG_ERROR, "Cannot open connection %s\n", buf);
         goto fail;
     }
diff --git a/libavformat/rtpproto.c b/libavformat/rtpproto.c
index 2062083aee..fa1dcb5570 100644
--- a/libavformat/rtpproto.c
+++ b/libavformat/rtpproto.c
@@ -382,7 +382,7 @@ static int rtp_open(URLContext *h, const char *uri, int flags)
                       hostname, rtp_port, s->local_rtpport,
                       sources, block);
         if (ffurl_open_whitelist(&s->rtp_hd, buf, flags, &h->interrupt_callback,
-                                 NULL, h->protocol_whitelist, h->protocol_blacklist) < 0)
+                                 NULL, h->protocol_whitelist, h->protocol_blacklist, h) < 0)
             goto fail;
         s->local_rtpport = ff_udp_get_local_port(s->rtp_hd);
         if(s->local_rtpport == 65535) {
@@ -397,7 +397,7 @@ static int rtp_open(URLContext *h, const char *uri, int flags)
                           sources, block);
             if (ffurl_open_whitelist(&s->rtcp_hd, buf, rtcpflags,
                                      &h->interrupt_callback, NULL,
-                                     h->protocol_whitelist, h->protocol_blacklist) < 0) {
+                                     h->protocol_whitelist, h->protocol_blacklist, h) < 0) {
                 s->local_rtpport = s->local_rtcpport = -1;
                 continue;
             }
@@ -407,7 +407,7 @@ static int rtp_open(URLContext *h, const char *uri, int flags)
                       hostname, s->rtcp_port, s->local_rtcpport,
                       sources, block);
         if (ffurl_open_whitelist(&s->rtcp_hd, buf, rtcpflags, &h->interrupt_callback,
-                                 NULL, h->protocol_whitelist, h->protocol_blacklist) < 0)
+                                 NULL, h->protocol_whitelist, h->protocol_blacklist, h) < 0)
             goto fail;
         break;
     }
diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index bbff70b37d..6888a2b11a 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -1469,7 +1469,7 @@ int ff_rtsp_make_setup_request(AVFormatContext *s, const char *host, int port,
                 /* we will use two ports per rtp stream (rtp and rtcp) */
                 j += 2;
                 err = ffurl_open_whitelist(&rtsp_st->rtp_handle, buf, AVIO_FLAG_READ_WRITE,
-                                 &s->interrupt_callback, &opts, s->protocol_whitelist, s->protocol_blacklist);
+                                 &s->interrupt_callback, &opts, s->protocol_whitelist, s->protocol_blacklist, NULL);
 
                 av_dict_free(&opts);
 
@@ -1612,7 +1612,7 @@ int ff_rtsp_make_setup_request(AVFormatContext *s, const char *host, int port,
             ff_url_join(url, sizeof(url), "rtp", NULL, namebuf,
                         port, "%s", optbuf);
             if (ffurl_open_whitelist(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE,
-                           &s->interrupt_callback, NULL, s->protocol_whitelist, s->protocol_blacklist) < 0) {
+                           &s->interrupt_callback, NULL, s->protocol_whitelist, s->protocol_blacklist, NULL) < 0) {
                 err = AVERROR_INVALIDDATA;
                 goto fail;
             }
@@ -1801,7 +1801,7 @@ redirect:
                     host, port,
                     "?timeout=%d", rt->stimeout);
         if ((ret = ffurl_open_whitelist(&rt->rtsp_hd, tcpname, AVIO_FLAG_READ_WRITE,
-                       &s->interrupt_callback, NULL, s->protocol_whitelist, s->protocol_blacklist)) < 0) {
+                       &s->interrupt_callback, NULL, s->protocol_whitelist, s->protocol_blacklist, NULL)) < 0) {
             err = ret;
             goto fail;
         }
@@ -2317,7 +2317,7 @@ static int sdp_read_header(AVFormatContext *s)
                                 rtsp_st->nb_exclude_source_addrs,
                                 rtsp_st->exclude_source_addrs);
             err = ffurl_open_whitelist(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ,
-                           &s->interrupt_callback, &opts, s->protocol_whitelist, s->protocol_blacklist);
+                           &s->interrupt_callback, &opts, s->protocol_whitelist, s->protocol_blacklist, NULL);
 
             av_dict_free(&opts);
 
@@ -2387,7 +2387,7 @@ static int rtp_read_header(AVFormatContext *s)
         return AVERROR(EIO);
 
     ret = ffurl_open_whitelist(&in, s->filename, AVIO_FLAG_READ,
-                     &s->interrupt_callback, NULL, s->protocol_whitelist, s->protocol_blacklist);
+                     &s->interrupt_callback, NULL, s->protocol_whitelist, s->protocol_blacklist, NULL);
     if (ret)
         goto fail;
 
diff --git a/libavformat/rtspdec.c b/libavformat/rtspdec.c
index ca7acc806b..a722b98e40 100644
--- a/libavformat/rtspdec.c
+++ b/libavformat/rtspdec.c
@@ -296,7 +296,7 @@ static int rtsp_read_setup(AVFormatContext *s, char* host, char *controlurl)
             av_log(s, AV_LOG_TRACE, "Opening: %s", url);
             ret = ffurl_open_whitelist(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE,
                                        &s->interrupt_callback, &opts,
-                                       s->protocol_whitelist, s->protocol_blacklist);
+                                       s->protocol_whitelist, s->protocol_blacklist, NULL);
             av_dict_free(&opts);
             if (ret)
                 localport += 2;
@@ -665,7 +665,7 @@ static int rtsp_listen(AVFormatContext *s)
 
     if (ret = ffurl_open_whitelist(&rt->rtsp_hd, tcpname, AVIO_FLAG_READ_WRITE,
                                    &s->interrupt_callback, NULL,
-                                   s->protocol_whitelist, s->protocol_blacklist)) {
+                                   s->protocol_whitelist, s->protocol_blacklist, NULL)) {
         av_log(s, AV_LOG_ERROR, "Unable to open RTSP for listening\n");
         return ret;
     }
diff --git a/libavformat/sapdec.c b/libavformat/sapdec.c
index 218c32a2eb..522b38d10a 100644
--- a/libavformat/sapdec.c
+++ b/libavformat/sapdec.c
@@ -87,7 +87,7 @@ static int sap_read_header(AVFormatContext *s)
                 port);
     ret = ffurl_open_whitelist(&sap->ann_fd, url, AVIO_FLAG_READ,
                                &s->interrupt_callback, NULL,
-                               s->protocol_whitelist, s->protocol_blacklist);
+                               s->protocol_whitelist, s->protocol_blacklist, NULL);
     if (ret)
         goto fail;
 
diff --git a/libavformat/sapenc.c b/libavformat/sapenc.c
index 0699e3e5b8..3098e340ca 100644
--- a/libavformat/sapenc.c
+++ b/libavformat/sapenc.c
@@ -151,7 +151,7 @@ static int sap_write_header(AVFormatContext *s)
             base_port += 2;
         ret = ffurl_open_whitelist(&fd, url, AVIO_FLAG_WRITE,
                                    &s->interrupt_callback, NULL,
-                                   s->protocol_whitelist, s->protocol_blacklist);
+                                   s->protocol_whitelist, s->protocol_blacklist, NULL);
         if (ret) {
             ret = AVERROR(EIO);
             goto fail;
@@ -171,7 +171,7 @@ static int sap_write_header(AVFormatContext *s)
                 "?ttl=%d&connect=1", ttl);
     ret = ffurl_open_whitelist(&sap->ann_fd, url, AVIO_FLAG_WRITE,
                                &s->interrupt_callback, NULL,
-                               s->protocol_whitelist, s->protocol_blacklist);
+                               s->protocol_whitelist, s->protocol_blacklist, NULL);
     if (ret) {
         ret = AVERROR(EIO);
         goto fail;
diff --git a/libavformat/smoothstreamingenc.c b/libavformat/smoothstreamingenc.c
index 193c360db1..dabd1ea304 100644
--- a/libavformat/smoothstreamingenc.c
+++ b/libavformat/smoothstreamingenc.c
@@ -123,7 +123,7 @@ static int64_t ism_seek(void *opaque, int64_t offset, int whence)
             os->tail_out = os->out;
             av_dict_set(&opts, "truncate", "0", 0);
             ret = ffurl_open_whitelist(&os->out, frag->file, AVIO_FLAG_WRITE,
-                                       &os->ctx->interrupt_callback, &opts, os->ctx->protocol_whitelist, os->ctx->protocol_blacklist);
+                                       &os->ctx->interrupt_callback, &opts, os->ctx->protocol_whitelist, os->ctx->protocol_blacklist, NULL);
             av_dict_free(&opts);
             if (ret < 0) {
                 os->out = os->tail_out;
@@ -132,7 +132,7 @@ static int64_t ism_seek(void *opaque, int64_t offset, int whence)
             }
             av_dict_set(&opts, "truncate", "0", 0);
             ffurl_open_whitelist(&os->out2, frag->infofile, AVIO_FLAG_WRITE,
-                                 &os->ctx->interrupt_callback, &opts, os->ctx->protocol_whitelist, os->ctx->protocol_blacklist);
+                                 &os->ctx->interrupt_callback, &opts, os->ctx->protocol_whitelist, os->ctx->protocol_blacklist, NULL);
             av_dict_free(&opts);
             ffurl_seek(os->out, offset - frag->start_pos, SEEK_SET);
             if (os->out2)
@@ -526,7 +526,7 @@ static int ism_flush(AVFormatContext *s, int final)
             continue;
 
         snprintf(filename, sizeof(filename), "%s/temp", os->dirname);
-        ret = ffurl_open_whitelist(&os->out, filename, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL, s->protocol_whitelist, s->protocol_blacklist);
+        ret = ffurl_open_whitelist(&os->out, filename, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL, s->protocol_whitelist, s->protocol_blacklist, NULL);
         if (ret < 0)
             break;
         os->cur_start_pos = os->tail_pos;
diff --git a/libavformat/srtpproto.c b/libavformat/srtpproto.c
index ef87c08e0d..5e6e5164d7 100644
--- a/libavformat/srtpproto.c
+++ b/libavformat/srtpproto.c
@@ -81,7 +81,7 @@ static int srtp_open(URLContext *h, const char *uri, int flags)
                  path, sizeof(path), uri);
     ff_url_join(buf, sizeof(buf), "rtp", NULL, hostname, rtp_port, "%s", path);
     if ((ret = ffurl_open_whitelist(&s->rtp_hd, buf, flags, &h->interrupt_callback,
-                                    NULL, h->protocol_whitelist, h->protocol_blacklist)) < 0)
+                                    NULL, h->protocol_whitelist, h->protocol_blacklist, h)) < 0)
         goto fail;
 
     h->max_packet_size = FFMIN(s->rtp_hd->max_packet_size,
diff --git a/libavformat/subfile.c b/libavformat/subfile.c
index fdd328a084..fa971e1902 100644
--- a/libavformat/subfile.c
+++ b/libavformat/subfile.c
@@ -78,7 +78,7 @@ static int subfile_open(URLContext *h, const char *filename, int flags,
     }
     av_strstart(filename, "subfile:", &filename);
     ret = ffurl_open_whitelist(&c->h, filename, flags, &h->interrupt_callback,
-                               options, h->protocol_whitelist, h->protocol_blacklist);
+                               options, h->protocol_whitelist, h->protocol_blacklist, h);
     if (ret < 0)
         return ret;
     c->pos = c->start;
diff --git a/libavformat/tls.c b/libavformat/tls.c
index 2a59aa77c6..10e0792e29 100644
--- a/libavformat/tls.c
+++ b/libavformat/tls.c
@@ -106,5 +106,5 @@ int ff_tls_open_underlying(TLSShared *c, URLContext *parent, const char *uri, AV
 
     return ffurl_open_whitelist(&c->tcp, buf, AVIO_FLAG_READ_WRITE,
                                 &parent->interrupt_callback, options,
-                                parent->protocol_whitelist, parent->protocol_blacklist);
+                                parent->protocol_whitelist, parent->protocol_blacklist, parent);
 }
diff --git a/libavformat/url.h b/libavformat/url.h
index 4ce60cc8df..f19b91ccb0 100644
--- a/libavformat/url.h
+++ b/libavformat/url.h
@@ -136,12 +136,15 @@ int ffurl_connect(URLContext *uc, AVDictionary **options);
  * @param options  A dictionary filled with protocol-private options. On return
  * this parameter will be destroyed and replaced with a dict containing options
  * that were not found. May be NULL.
+ * @param parent An enclosing URLContext, whose generic options should
+ *               be applied to this URLContext as well.
  * @return >= 0 in case of success, a negative value corresponding to an
  * AVERROR code in case of failure
  */
 int ffurl_open_whitelist(URLContext **puc, const char *filename, int flags,
                const AVIOInterruptCB *int_cb, AVDictionary **options,
-               const char *whitelist, const char* blacklist);
+               const char *whitelist, const char* blacklist,
+               URLContext *parent);
 
 int ffurl_open(URLContext **puc, const char *filename, int flags,
                const AVIOInterruptCB *int_cb, AVDictionary **options);