32 (28).mp4 [REPACK]

Accessing Aviation Forecasting Resources Utilising Satellite Data on our Regional Focus Group Meeting Archive (facilitator Mr Bodo Zeschke BMTC) 30 minutes duration (32Mb .wmvfile) (60Mb .mp4file)

32 (28).mp4

A Weather and Forecast Discussion (Mr Bodo Zeschke BMTC) 24 minutes duration (26Mb .wmv file) (50Mb .mp4 file)Two short case studies, showcasing the application of satellite data and data products:

Please download the following resources prior to the session. Note that there are four animations embedded within the PowerPoint slide. For some computers the animations do not all work. In that case please examine the .wmv and .mp4 files

MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. MP4 allows streaming over the Internet.The only official filename extension for MPEG-4 Part 14 files is .mp4, but many have other extensions, most commonly .m4a and .m4p.

When inspecting sample.mp4 file's binary data using any Hex Viewer, like Active@ Disk Editor we can see it starts with a signature ftyp (hex: 66 74 79 70) at offset 4, which defines QuickTime Container File Type.

It won't let you export in any MPEG that has a vertical resolution beyond 2160. You could export a master file to QuickTime and use VLC to convert it. It will create a .m4v file. Just change the extension to .mp4.

erAck - thanks for confirming that "VideoJS is the most fragile thing I ever encountered in Piwigo." I've been working to get videos to work consistently and well, with only mixed success and plenty of frustration.With VideoJS issues, I tried disabling it and using the extension Charlies content. For .mp4, it simply sends the file to a browser using html5 tags. This worked well for my newer .mp4, but for some reason, didn't work with older .mp4 files (10+ years old, but these files if opened directly in a browser with file:///... and did display properly).So I tried VideoJS's native player option (as Zentalquabula uses), and both new and old .mp4 files now play. I can't explain why Charlies content "native" (as all it has) and VideoJS "native" act differently, but they do.Another advantage of using VideoJS native player option seems to be that if the poster/pwg_representative image isn't an exact match for the .mp4, it still works.Jakeelee - you may wish to try the extension Charlies content; it seems simpler that VideoJS, but clearly isn't perfect for all .mp4 files.Note that neither VideoJS or Charlies content are "approved" for piwigo 11.2.0, but both seem to work for me.It should also be noted that for large .mp4 files, they should be "Web optimized" (Handbrake) or otherwise ensure that the moov atom is at the beginning (ffmpeg "-movflags faststart" option) otherwise the server may time out while sending the video. Jakeelee - if small .mp4s work for you but large ones don't, this may be the cause. 041b061a72