lavf: use initial_padding instead of deprecated delay

libavformat/matroskaenc.c

@@ -742,13 +742,14 @@ static int mkv_write_track(AVFormatContext *s, MatroskaMuxContext *mkv,
     if (!(st->disposition & AV_DISPOSITION_DEFAULT))
         put_ebml_uint(pb, MATROSKA_ID_TRACKFLAGDEFAULT, !!(st->disposition & AV_DISPOSITION_DEFAULT));
 
-    if (codec->codec_type == AVMEDIA_TYPE_AUDIO && codec->delay) {
-        mkv->tracks[i].ts_offset = av_rescale_q(codec->delay,
+    if (codec->codec_type == AVMEDIA_TYPE_AUDIO && codec->initial_padding) {
+        mkv->tracks[i].ts_offset = av_rescale_q(codec->initial_padding,
                                                 (AVRational){ 1, codec->sample_rate },
                                                 st->time_base);
 
         put_ebml_uint(pb, MATROSKA_ID_CODECDELAY,
-                      av_rescale_q(codec->delay, (AVRational){ 1, codec->sample_rate },
+                      av_rescale_q(codec->initial_padding,
+                                   (AVRational){ 1, codec->sample_rate },
                                    (AVRational){ 1, 1000000000 }));
     }
 

libavformat/oggenc.c

@@ -564,7 +564,10 @@ static int ogg_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
         }
         granule = (oggstream->last_kf_pts<<oggstream->kfgshift) | pframe_count;
     } else if (st->codec->codec_id == AV_CODEC_ID_OPUS)
-        granule = pkt->pts + pkt->duration + av_rescale_q(st->codec->delay, (AVRational){ 1, st->codec->sample_rate }, st->time_base);
+        granule = pkt->pts + pkt->duration +
+                  av_rescale_q(st->codec->initial_padding,
+                               (AVRational){ 1, st->codec->sample_rate },
+                               st->time_base);
     else
         granule = pkt->pts + pkt->duration;