ffserver: use avcodec_get_context_defaults3()

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

ffserver.c

@@ -4221,8 +4221,8 @@ static int parse_ffconfig(const char *filename)
                 }
 
                 stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL);
-                avcodec_get_context_defaults2(&video_enc, AVMEDIA_TYPE_VIDEO);
-                avcodec_get_context_defaults2(&audio_enc, AVMEDIA_TYPE_AUDIO);
+                avcodec_get_context_defaults3(&video_enc, NULL);
+                avcodec_get_context_defaults3(&audio_enc, NULL);
 
                 audio_id = CODEC_ID_NONE;
                 video_id = CODEC_ID_NONE;