# How to add a mark "horizontal playback"

**URL:** <https://discuss.kde.org/t/how-to-add-a-mark-horizontal-playback/4760>\
**Category:** Help\
**Tags:** kdenlive\
**Created:** [September 5, 2023, 2:55pm UTC](https://discuss.kde.org/t/how-to-add-a-mark-horizontal-playback/4760 "2023-09-05T14:55:38Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![kdencn](https://discuss-cdn.kde.org/letter_avatar_proxy/v4/letter/k/b487fb/32.png) [@kdencn](https://discuss.kde.org/u/kdencn)\
**Post date:** [September 5, 2023, 2:55pm UTC](https://discuss.kde.org/t/how-to-add-a-mark-horizontal-playback/4760/1 "2023-09-05T14:55:38Z")

</div>

When an MP4 file recorded at 1920X1080 is played vertically on a mobile phone, how is the “horizontal playback” mark in the lower right corner made and added to the MP4 file?

 ![横屏标示](https://discuss-cdn.kde.org/uploads/default/original/2X/0/0de3a7eba2b30467deffc9d46c081294048c331c.jpeg)

---

<div class="post-metadata">

**Author:** ![berndmj](https://discuss-cdn.kde.org/user_avatar/discuss.kde.org/berndmj/32/2423_2.png) [@berndmj](https://discuss.kde.org/u/berndmj)\
**Post date:** [September 5, 2023, 3:14pm UTC](https://discuss.kde.org/t/how-to-add-a-mark-horizontal-playback/4760/2 "2023-09-05T15:14:04Z")

</div>

I am sure this is a function of your mobile phone. It know the dimensions of the video file and of course of its display and if that is different it displays the icon.

---

<div class="post-metadata">

**Author:** ![kdencn](https://discuss-cdn.kde.org/letter_avatar_proxy/v4/letter/k/b487fb/32.png) [@kdencn](https://discuss.kde.org/u/kdencn)\
**Post date:** [September 6, 2023, 4:23am UTC](https://discuss.kde.org/t/how-to-add-a-mark-horizontal-playback/4760/3 "2023-09-06T04:23:29Z")

</div>

No,mobile phone has not the function! If you record horizontal a MP4 file used your mobile phone, then vertical playback this vedio at your phone. it will not show the MARK

---

<div class="post-metadata">

**Author:** ![berndmj](https://discuss-cdn.kde.org/user_avatar/discuss.kde.org/berndmj/32/2423_2.png) [@berndmj](https://discuss.kde.org/u/berndmj)\
**Post date:** [September 6, 2023, 3:23pm UTC](https://discuss.kde.org/t/how-to-add-a-mark-horizontal-playback/4760/4 "2023-09-06T15:23:40Z")

</div>

Well, perhaps that’s the case. Still, the icon shows up in the status or tool bar of the player app and not in the video (it would be somewhere in the lower right-hand corner in the blue area of the video).

---

<div class="post-metadata">

**Author:** ![frdbr](https://discuss-cdn.kde.org/user_avatar/discuss.kde.org/frdbr/32/73_2.png) [@frdbr](https://discuss.kde.org/u/frdbr)\
**Post date:** [September 7, 2023, 3:18am UTC](https://discuss.kde.org/t/how-to-add-a-mark-horizontal-playback/4760/5 "2023-09-07T03:18:37Z")

</div>

What does this have to do with Kdenlive?