avcodec/ac3enc: add FF_CODEC_CAP_INIT_CLEANUP

Signed-off-by: Limin Wang <lance.lmwang@gmail.com>

libavcodec/ac3enc.c

@@ -2490,6 +2490,5 @@ av_cold int ff_ac3_encode_init(AVCodecContext *avctx)
 
     return 0;
 init_fail:
-    ff_ac3_encode_close(avctx);
     return ret;
 }

libavcodec/ac3enc_fixed.c

@@ -155,6 +155,7 @@ AVCodec ff_ac3_fixed_encoder = {
     .sample_fmts     = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16P,
                                                       AV_SAMPLE_FMT_NONE },
     .priv_class      = &ac3enc_class,
+    .caps_internal   = FF_CODEC_CAP_INIT_CLEANUP,
     .supported_samplerates = ff_ac3_sample_rate_tab,
     .channel_layouts = ff_ac3_channel_layouts,
     .defaults        = ac3_defaults,