The sine qua non conditions for a video posted on a website can be seen in high definition, are as follows: it is necessary that the video file has been created at a resolution of frame of 1920 1080 pixels, it is also necessary for the Viewer to have a monitor capable of reproducing a resolution of 1920 1080 pixels, in additionthe viewer must have a team capable of processing the data volume from a video file in high definition, no loss of frames, and also recommended bitrates of between 7 and 10 Mbps for the encoding of videos in high definition, hardly achievable figures with the current basic Internet connections. If one of these four premises fails, we cannot say that we are seeing high definition video, although a high quality video, which is a more generic term. and what they are, and what role play the video codecs? In Europe, every second of a movie, contains 25 frames, and if we speak of standard definition, each frame, every second of a movie, contains more than 400,000 pixels. Four numbers making we realize that, without compression, few would be the computers capable of processing video files. Codecs (codec) define standards or specifications about how you should proceed to compress digital data, depending on the format or target of each production support. All digital video created for its dissemination has been encoded using a particular codec of compression. Depending on the scope of dissemination of an audiovisual, its producer will use a video codec or another. For web videos are generally encoded in Flash Video format (with extension Flv) or H.264 format.
Current versions of Flash use the On2VP6 codec to compress video, and H.264 format is based on the Mpeg-4 standard. In short, how we adjust the balance between quality and compression to achieve the perfect balance? That is the question of the million. It is very difficult to determine, by way of prescription, the commandments that must meet all video for web, that will guarantee the highest possible quality, since every project has some particular technical requirements. To summarize I commented that: in Atractium work since the beginning of the chain of production (in the shooting), to the highest resolution possible (HDV formats). Thus, we are always in time reduce frame sizes, where deemed appropriate. We also considered the potential viewer of the video of each of our clients, who is what is expected to be Internet access and its transmission speeds, and of course, what the capacity and speed of the server that will host every video.