mpc7: Initialize AVFrame properly

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/mpc7.c

@@ -97,6 +97,9 @@ static av_cold int mpc7_decode_init(AVCodecContext * avctx)
     avctx->sample_fmt = AV_SAMPLE_FMT_S16;
     avctx->channel_layout = AV_CH_LAYOUT_STEREO;
 
+    avcodec_get_frame_defaults(&c->frame);
+    avctx->coded_frame = &c->frame;
+
     if(vlc_initialized) return 0;
     av_log(avctx, AV_LOG_DEBUG, "Initing VLC\n");
     scfi_vlc.table = scfi_table;
@@ -137,9 +140,6 @@ static av_cold int mpc7_decode_init(AVCodecContext * avctx)
     }
     vlc_initialized = 1;
 
-    avcodec_get_frame_defaults(&c->frame);
-    avctx->coded_frame = &c->frame;
-
     return 0;
 }