Changes

We advise users to contact the Technical Support Group to discuss which codec and export settings are best suited for your video stimuli. This page functions only as reference.

We advise users to contact the Technical Support Group to discuss which codec and export settings are best suited for your video stimuli. This page functions only as reference.

== Information ==  

== Information ==  

Bitrate can be set to Constant (CBR) or Variable (VBR). A variable bitrate can help decreasing file size when your video has a combination of high and low amounts of movement, as it will optimize the distribution of information storage for those parts in your video. The downside is that your video player has to sometimes suddenly decode a lot more information than the previous frame, potentially causing laggy playback. For this reason, we advise using a constant bitrate.

Bitrate can be set to Constant (CBR) or Variable (VBR). A variable bitrate can help decreasing file size when your video has a combination of high and low amounts of movement, as it will optimize the distribution of information storage for those parts in your video. The downside is that your video player has to sometimes suddenly decode a lot more information than the previous frame, potentially causing laggy playback. For this reason, we advise using a constant bitrate.

== Software support ==

== Software support ==

|-

|-

| Codec

| Codec

! scope="row" colspan="1" | VP8/VP9

| style="text-align: center;" | VP8/VP9

! scope="row" colspan="1" | Theora

| style="text-align: center;" | Theora

! scope="row" colspan="2" | H.264

| style="text-align: center;" colspan="2" | H.264

! scope="row" style="width:120px;" | XVID

| style="text-align: center;" | XVID

|-

|-

| Container  

| Container  

! scope="row" | .webm .mkv

| .webm .mkv

! scope="row" | .ogv .ogg

| .ogv .ogg

! scope="row" | .mp4

| .mp4

! scope="row" colspan="2" | .avi

| colspan="2" | .avi

|-

|-

| Advantage

| Advantage

| Open Source

| Open Source

| Industry Standard

| Industry Standard

| Works in Presentation  

| colspan="2" | Works in Presentation  

|-

|-

! scope="row"| Software

! Software

|-

|-

| Chrome/Firefox/Opera

| Chrome/Firefox/Opera

| style="background-color:#9F9;" | Yes

| style="background-color:#9F9;" | Yes

|}

|}

¹ Windows version requires careful installation.<br/>

¹ Windows version requires careful installation, ask the TSG for help.<br/>

² Recommended output for Presentation only. See documentation below for conversion options.<br/>

² Recommended output for Presentation only. See documentation below for conversion options.<br/>

Note: This list is incomplete and will be updated as soon as we have tested all the common and recommended video formats with all supported stimuli software.

Note: This list is incomplete and will be updated as soon as we have tested all the common and recommended video formats with all supported stimuli software.

== Neurobs Presentation ==

== Neurobs Presentation ==

Neurobs Presentation does not support the .mp4 container. Instead, you can convert your H.264 encoded .mp4 videos to the .avi container using the MP4Cam2AVI Easy Converter, as recommended by Neurobs. Be sure to uncheck 'preview On' before opening your files, because the program might crash otherwise. Alternatively, if your videos are under 5 minutes, you can use Freemake instead. Both programs can be downloaded via the links below.

Neurobs Presentation does not support the .mp4 container, so you will have to convert your H.264 encoded .mp4 videos to the .avi container. We recommend doing this with [[FFmpeg]].

 

Neurobs recommends using MP4Cam2AVI Easy Converter<ref>http://www.neurobs.com/wiki/Presentation/Video#Video_Encoding</ref>. Be sure to uncheck 'preview On' before opening your files, because the program might crash otherwise.

 

 

{{Warn|There are performance issues with playing videos in Presentation. Please contact the TSG if you plan to use videos in your Presentation experiment.}}

== Downloads ==

== Downloads ==

=== Converters ===

=== Converters ===

{| class="wikitable"   

{| class="wikitable"   

|-

|-

! scope="col" | Supported formats

! scope="col" | Supported formats

! scope="col" | Supported containers

! scope="col" | Supported containers

|-

|-

| Handbrake || https://handbrake.fr/ || H.264, MPEG-4, MPEG-2, VP3 || mp4, mkv

| Handbrake || https://handbrake.fr/ || H.264, MPEG-4, MPEG-2, VP3 || mp4, mkv

|-

|-

| MP4Cam2AVI Easy Converter || http://sourceforge.net/projects/mp4cam2avi || H.264 || avi, mp4

| MP4Cam2AVI Easy Converter || http://sourceforge.net/projects/mp4cam2avi || H.264 || avi, mp4

|}

|}

=== Codec Packs ===

=== Codec Packs ===

Note: Below is just a list of several codec packs. Please do not attempt to install all packs together, but only choose the one(s) your playback-software requires.

Note: Below is just a list of several codec packs. Please '''do not attempt to install all packs together''', but only choose the one(s) your playback-software requires.

{| class="wikitable"   

{| class="wikitable"   

|-

|-

|-

|-

| K-Lite Codec Pack || http://www.codecguide.com/download_kl.htm

| K-Lite Codec Pack || http://www.codecguide.com/download_kl.htm

|-

|-

| FFDshow || http://sourceforge.net/projects/ffdshow-tryout/

| FFDshow || http://sourceforge.net/projects/ffdshow-tryout/

|}

|}

=== Media Players ===

=== Media Players ===

| Gstreamer (Matlab) || http://gstreamer.freedesktop.org/

| Gstreamer (Matlab) || http://gstreamer.freedesktop.org/

|}

|}