Currently we do not have any documentation for this.
Based on what i try upload video on your site, it seems like it can proceed the video encoding through your FFmpeg, this is the log file what it process :
ffmpeg version 0.11 Copyright (c) 2000-2012 the FFmpeg developers
built on Sep 14 2015 09:56:46 with gcc 4.4.7 20120313 (Red Hat 4.4.7-16)
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-shared --enable-libmp3lame --enable-libx264 --enable-libfaac --enable-libvpx --enable-libvorbis --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopencore-amrnb --enable-libtheora
libavutil 51. 54.100 / 51. 54.100
libavcodec 54. 23.100 / 54. 23.100
libavformat 54. 6.100 / 54. 6.100
libavdevice 54. 0.100 / 54. 0.100
libavfilter 2. 77.100 / 2. 77.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/televisionjamaic/public_html/media/com_easysocial/videos/4/02a2d43eba379f2248d246405b7fa434':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2015-04-02 10:12:46
Duration: 00:00:29.10, start: 0.000000, bitrate: 134 kb/s
Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1064x720 [SAR 1:1 DAR 133:90], 132 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc
Metadata:
creation_time : 2015-04-02 10:12:46
handler_name : Mainconcept MP4 Video Media Handler
[buffer @ 0x1418cc0] w:1064 h:720 pixfmt:yuv420p tb:1/30000 sar:1/1 sws_param:flags=2
[buffersink @ 0x1418f60] No opaque field provided
[scale @ 0x14190a0] Size values less than -1 are not acceptable.
Error opening filters!
Then i realised it seems like your FFmpeg version still using older version, can you request with your webhosting provider to update your FFmpeg version to at least
v2.8.x Library ? Because Easysocial minimum requirement only support FFMpeg v2.8 and above.