diff --git a/src/media_object.cpp b/src/media_object.cpp
index 044aa99..b39ebbd 100644
--- a/src/media_object.cpp
+++ b/src/media_object.cpp
@@ -812,6 +812,7 @@ void media_object::open(const std::string &url, const device_request &dev_reques
         av_dict_set(&iparams, "framerate", str::asprintf("%d/%d",
                     dev_request.frame_rate_num, dev_request.frame_rate_den).c_str(), 0);
     }
+    av_dict_set(&iparams, "input_format", "mjpeg");
 
     /* Open the input */
     _ffmpeg->format_ctx = NULL;