<p>So I've downloaded the free fan-created <a href="https://www.startrekcontinues.com/" rel="nofollow noreferrer">Star Trek Continues</a> Blue-Ray ISO for <a href="https://www.startrekcontinues.com/STC_VOL1_BR.torrent" rel="nofollow noreferrer">Episodes 1-3</a> and I'm trying to convert the FHD 1920x1080 to SD 960x540 to be able to watch on my phone:</p>

<pre><code>ffmpeg -canvas_size 960x540 \
-i /media/STC_VOL1_BR/BDMV/STREAM/00000.m2ts \
-map_metadata -1 \
-c:v libx264 -map 0:0 -strict -2 -r 24 -s 960x540 \
-c:a libmp3lame -map 0:1 -b:a 384K \
-metadata:s:s:0 language=EN -c:s dvdsub -map 0:2 \
/media/Videos/Star\ Trek\ Continues/S01E01\ Pilgrim\ Of\ Eternity.mkv
</code></pre>

<p>but after a few seconds of watching the converted mkv, the subtitles become:</p>

<ul>
<li>unreadable due to overlapping</li>
<li>are slightly big (no issue)</li>
<li>shifted to the right and bottom of the screen</li>
</ul>

<p><a href="https://i.sstatic.net/bhSMp.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/bhSMp.png" alt="VLC Screenshot"></a> </p>

<p><em>What am I doing wrong?</em></p>

<p><sub><strong>Note:</strong> I've only ever dealt with <code>srt</code> subtitles and I  know that dvdsubs are images, so that's why I thought the <code>canvas_size</code> parameter might be of help, but it makes no difference.</sub></p>

CC BY-SA 4.0
2019-05-31T22:40:45.637Z
I joined this site for the sole purpose of upvoting this excellent question :)
WinEunuuchs2Unix
<ffmpeg><conversion><subtitles>
Star Trek Continues: ffmeg dvdsub: overlapping subtitles
Fabby
# Star Trek Continues: ffmeg dvdsub: overlapping subtitles

(Asked by: username_0 on 2019-05-22)

So I've downloaded the free fan-created Star Trek Continues Blue-Ray ISO for Episodes 1-3 and I'm trying to convert the FHD 1920x1080 to SD 960x540 to be able to watch on my phone:
ffmpeg -canvas_size 960x540 \
-i /media/STC_VOL1_BR/BDMV/STREAM/00000.m2ts \
-map_metadata -1 \
-c:v libx264 -map 0:0 -strict -2 -r 24 -s 960x540 \
-c:a libmp3lame -map 0:1 -b:a 384K \
-metadata:s:s:0 language=EN -c:s dvdsub -map 0:2 \
/media/Videos/Star\ Trek\ Continues/S01E01\ Pilgrim\ Of\ Eternity.mkv

but after a few seconds of watching the converted mkv, the subtitles become:

unreadable due to overlapping
are slightly big (no issue)
shifted to the right and bottom of the screen

 
What am I doing wrong?
Note: I've only ever dealt with srt subtitles and I  know that dvdsubs are images, so that's why I thought the canvas_size parameter might be of help, but it makes no difference.

**Tags:** ffmpeg, conversion, subtitles

> **Comments:**
> **username_1**: I joined this site for the sole purpose of upvoting this excellent question :)  

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## 0 answers

