Forum Discussion
Video compression option greyed out - did not edit in Storyline
Hi,
The option for uncompressed video is greyed out. It is a separate MP4 I uploaded and haven't touched it with any Storyline editing tools as suggested in another article.
The video as-is is ...
if you can set "Compression None", "Adaptive" has ALWAYS a reduced quality
e.g.
Static (original) .mp4
audio: 125 kb/s, 48 kHz, 2 channel AAC LC
video: 795 kb/s, 1920x1080, 25 FPS, AVC (Main@L4.1)
Adaptive .ts
stream_0: audio 22.05 kHz, 1 channel, AAC LC
stream_1: video 1920x1080 - 1441 kb/s
stream_2: video 1920x1080 - 855 kb/s
stream_3: video 1920x1080 - 501 kb/s
=> result:
- doubled bandwidth with comparable video quality: 795 kb/s -> 1441 kb/s
- audio quality reduction: stereo 20 Hz ... 24 kHz -> mono 20 hz .. 11 kHz
and publishing is very slow, because of 3 x (re)compression for the different video streams
and it's not compatible file:// (local playback)
and it's not compatible to some (?) LMS
