In fact, there are very few devices with such small screen are left today. Similarly, the least quality video having lowest bitrate value is 144P and it looks good on small screens only. Not 3D of course, but talking in terms of quality.
4K display also known as the retina display because it gives the clear picture of video as you see with naked eye. The highest quality video having highest bitrate value is 4K as of writing this today. Lower size video will consume less bandwidth and transfer faster than large size videos. Decreasing the quality of video will help you in easily transfer the file over the internet. Changing bitrate will result in decreasing the quality of video, thus will reduce the size of video. The most basic and effective one is to decrease the bitrate of video. When it comes in compressing the video, there are many options which can be adopted. Compress video in bitrate and resolution – PHP & FFmpeg Compressing will save you some space in your system. H264 will show up if I run ffmpeg -formats and ffmpeg -codecs, and as I said it will play fine in Quicktime.You can compress the video by bitrate and by resolution in PHP and FFmpeg. I have tried forcing it to h264 by adding flags like -f h264 and -vcodec h264 but I get a screenfull of errors (no frame, illegal POC type, sps_id out of range) ending with Could not find codec parameters (Video: h264) If I open the Movie inspector in quicktime it tells me that the original file is an "h264" video and the ffmpeg-processed ones are "mpeg-4". The mp4 files will play fine if I download them and play them in the Quicktime player but if I attempt to open them in the Adobe Media Player it reports "The media file does not contain a supported video track". After publishing the flv files work fine, but the mp4 files will not play in the flash player: Audio will play but video won't. The user can upload flv files and mp4 files, both of which play fine in the Flash UI before publishing. We have a flash web-app that created interactive video, and are using ffmpeg to do some compression/resizing when a user "publishes" their project.
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