<p>FFmpeg, by default, only picks one stream of each type (video, audio, subtitles). The user needs to set map option to select tracks for an output.</p>
<pre><code>ffmpeg -i /sdcard/input.mkv -vf subtitles=/sdcard/input.ass -map 0 -c:a copy /sdcard/hrdcoded.mp4
</code></pre>
<p>See <a href="https://ffmpeg.org/ffmpeg.html#Stream-selection" rel="nofollow noreferrer">https://ffmpeg.org/ffmpeg.html#Stream-selection</a></p>

CC BY-SA 4.0
2020-11-29T06:26:37.877Z
2020-11-29T06:26:37.877Z
Gyan
<p>I have a video and a soft subtitle of the video.The video had 3 audio(track1 track2 track3) I use this command</p>
<p>ffmpeg -i /sdcard/input.mkv -vf subtitles=/sdcard/input.ass /sdcard/hrdcoded.mp4</p>
<p>In this command I not only hardcode subtitles but also convert the video to mp4. The process start properly but when it finished I saw I was have 3 audio track(track1 track2 track3) now it have audio track1. Other tracks are missing. What command should i use to have all audio track</p>

<ffmpeg>
After subtitle video one of my audio track is missing
Md.Rakibul Islam
# After subtitle video one of my audio track is missing

(Asked by: username_0 on 2020-11-29)

I have a video and a soft subtitle of the video.The video had 3 audio(track1 track2 track3) I use this command

ffmpeg -i /sdcard/input.mkv -vf subtitles=/sdcard/input.ass /sdcard/hrdcoded.mp4

In this command I not only hardcode subtitles but also convert the video to mp4. The process start properly but when it finished I saw I was have 3 audio track(track1 track2 track3) now it have audio track1. Other tracks are missing. What command should i use to have all audio track

**Tags:** ffmpeg


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## 1 answers

### Answer by username_1 on 2020-11-29. Score: 0 | Accepted answer

FFmpeg, by default, only picks one stream of each type (video, audio, subtitles). The user needs to set map option to select tracks for an output.
ffmpeg -i /sdcard/input.mkv -vf subtitles=/sdcard/input.ass -map 0 -c:a copy /sdcard/hrdcoded.mp4

See https://ffmpeg.org/ffmpeg.html#Stream-selection


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