player/audio: also adjust apts by audio speed in audio_start_ao

Fixes 7051e94e4b

player/audio.c

@@ -829,7 +829,8 @@ void audio_start_ao(struct MPContext *mpctx)
     double pts = MP_NOPTS_VALUE;
     if (!get_sync_pts(mpctx, &pts))
         return;
-    double apts = playing_audio_pts(mpctx);
+    double apts = written_audio_pts(mpctx);
+    apts -= apts != MP_NOPTS_VALUE ? mpctx->audio_speed * ao_get_delay(mpctx->ao) : 0;
     if (pts != MP_NOPTS_VALUE && apts != MP_NOPTS_VALUE && pts < apts &&
         mpctx->video_status != STATUS_EOF)
     {