diff --git a/libavcodec/frame_thread_encoder.c b/libavcodec/frame_thread_encoder.c
index 40213cde2f..c584e0b36a 100644
--- a/libavcodec/frame_thread_encoder.c
+++ b/libavcodec/frame_thread_encoder.c
@@ -113,7 +113,7 @@ end:
     return NULL;
 }
 
-int ff_frame_thread_encoder_init(AVCodecContext *avctx){
+int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options){
     int i=0;
     ThreadContext *c;
 
@@ -151,6 +151,7 @@ int ff_frame_thread_encoder_init(AVCodecContext *avctx){
     pthread_cond_init(&c->finished_task_cond, NULL);
 
     for(i=0; i<avctx->thread_count ; i++){
+        AVDictionary *tmp = NULL;
         AVCodecContext *thread_avctx = avcodec_alloc_context3(avctx->codec);
         if(!thread_avctx)
             goto fail;
@@ -165,10 +166,13 @@ int ff_frame_thread_encoder_init(AVCodecContext *avctx){
         thread_avctx->thread_count = 1;
         thread_avctx->active_thread_type &= ~FF_THREAD_FRAME;
 
-        //FIXME pass private options to encoder
-        if(avcodec_open2(thread_avctx, avctx->codec, NULL) < 0) {
+        av_dict_copy(&tmp, options, 0);
+        av_dict_set(&tmp, "threads", "1", 0);
+        if(avcodec_open2(thread_avctx, avctx->codec, &tmp) < 0) {
+            av_dict_free(&tmp);
             goto fail;
         }
+        av_dict_free(&tmp);
         av_assert0(!thread_avctx->internal->frame_thread_encoder);
         thread_avctx->internal->frame_thread_encoder = c;
         if(pthread_create(&c->worker[i], NULL, worker, thread_avctx)) {
diff --git a/libavcodec/frame_thread_encoder.h b/libavcodec/frame_thread_encoder.h
index 398c7f5fac..1da0ce1808 100644
--- a/libavcodec/frame_thread_encoder.h
+++ b/libavcodec/frame_thread_encoder.h
@@ -20,7 +20,7 @@
 
 #include "avcodec.h"
 
-int ff_frame_thread_encoder_init(AVCodecContext *avctx);
+int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options);
 void ff_frame_thread_encoder_free(AVCodecContext *avctx);
 int ff_thread_video_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet_ptr);
 
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 150d90703a..b93be5f8fe 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -874,7 +874,7 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *code
         av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n");
 
     entangled_thread_counter--; //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem
-    ret = ff_frame_thread_encoder_init(avctx);
+    ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL);
     entangled_thread_counter++;
     if (ret < 0)
         goto free_and_end;