Within the last week, there have been reports and I can confirm that most of the embedded youtube videos on websites have fallen back to a default of 240p instead of the 360p that it had been at. The quality drop is dramatic. Videos now look pixelated, blocky, and low quality, even if the orginal is HD. There is no way to change this default on the embedded video. I have tried all the old ways, and nothing works. Anyone else notice this? Is this a new youtube policy or a big error?
Standard video nomenclature, "p" stands for progressive. A 240p video consists of frames 240 pixels high displayed at the frame rate. The alternative would be 240i where "i" stands for interlaced and the video consists of 240 pixel high frames each divided into two 120 pixel high fields with one field containing the even numbered lines of pixels and the other the odd. The fields are displayed sequentially at twice the frame rate with the display of each field leaving the spaces for the pixels from the other field vacant. Interlaced is an old analog TV thing and today's HD TV and computer video are usually progressive display.