Edit markers appear red in the Compressor preview area. They are commonly used by compression artists to force an I-frame at an edit point to ensure higher image quality at that moment in the video. Compression markers appear blue in the Compressor preview area.Įdit markers: Function identically to compression markers. Add them to a video if a section appears to have lower image quality than the surrounding frames. Chapter markers appear orange in the Compressor preview area.Ĭompression markers: Generate an I-frame, but do not generate thumbnails, chapter-track entries, or other metadata. Chapter markers are also included in submissions to the iTunes Store as part of an iTunes Store package. You can also assign a URL to a chapter marker to have that URL appear during playback of a podcast. Compressor can create the following types of markers:Ĭhapter markers: Generate named index points and thumbnail images for DVDs, QuickTime movies, or video podcasts. Added I-frames improve compression quality, but can increase overall file size. Additionally, when you output the source file to an H.264, MPEG-2, or MPEG-4 video format, each marker forces the creation of an I-frame. You can use Compressor to append a marker with editing notes or other descriptive information.
Use the command line to submit Compressor jobsĪ marker flags a specific timing location in a source file.
#PODCAST CHAPTER MARKERS WITH GARAGEBAND 10.1 PRO#
Access watch folder settings and properties.
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