There is no ‘generational’ loss between the copies if you don’t intend to introduce one. In some senses, no transcoding doesn’t reduce quality, in the way that taking a photocopy of something might do - especially if you take a photocopy of a photocopy.It all depends on how you do it and why you’re doing it. Let’s take a look at some common video transcoding workflows and some of the important considerations for each.īut before we do, one question we need to consider is: Does transcoding reduce quality? Or, the high-resolution makes adding effects and filters bog down the system to another stand still. Even the fastest hard drive would struggle to deliver data quickly enough from the drive to the computer without skipping or dropping frames, leading to stuttering playback. The file sizes are often too large for anything. Any editor who has worked with high-quality, computationally-intense and storage-hogging video files knows that this doesn’t make for a smooth or efficient video editing experience. Transcoding the video files in this way ensures the best possible experience for the end user at the time. These might include Blu-Ray MPEG files, H.264 mp4’s for online streaming and many more. These would then be transcoded from the master files into the various distribution formats required.Once editing is completed, the final master files would be created, transcoding them from the editing format to the delivery specification, and delivered.Transcode the original camera files into a more editing friendly format.So if we add all of this together we can see why video transcoding is so useful and essential at different stages of the video post-production workflow.Īt each stage of the process different media files are created with different uses in mind.Īs a general rule the files created at the start of this process will be at their highest raw quality, while thereafter some compromises will be made in order to balance the requirements of visual quality, file size and computing power depending on what is needed. So in our opening example, the original iPhone video would likely have had a higher quality audio and video bitrate and video resolution (for example, 1920 x 1080) than the version that was transcoded and shared on WhatsApp (for example 640 x 360). Video Frame Rate (24 fps, 25 fps, 29.97 fps etc).Video Bitrate (How much data is given to each frame, higher = better quality).This is because the ProRes codec is easy for computers to work with and it can deliver high quality looking files at a fraction of the storage space.Īll video and audio files also have other important parameters that can also be changed during the transcoding process to better suit the intended purpose these parameters all affect the final file size and media quality. mov file for easier editing in software like Adobe Premiere Pro or DaVinci Resolve. But these can be transcoded to another format, such as a ProRes. MXF files take up a lot of storage space and require a lot of computer power to handle.
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