EachScape

 It really IMPORTANT to use video format which work across the board.
 
Supported video format:
 

• H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per second, Low-Complexity version of the H.264 Baseline Profile with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats

 

• H.264 video, up to 768 Kbps, 320 by 240 pixels, 30 frames per second, Baseline Profile up to Level 1.3 with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats

 

• MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats

 
Encoding and keyframe rates
Encoding of video depends on the source video. Basically the number of keyframes gets divided by the number of FPS of the video and that decides how far apart the Keyframes of the encoded video are.
These are important for Fast Forward & Rewind.

Here are some examples:

 

Default Keyframe set in Encoder: 120 keyframes

 

One suggestion is to have different encoding settings for the different FPS in the source videos. The different encoding setting should only differ in the number of total keyframes. That will give your encoded videos a consistent encoded rw/ff interval. 

 

An example if you want all videos to have 5 seconds interval between keyframes:

 

Expected every 5 seconds keyframe: