The ability of MediaCoder to hard-render the subtitle stream present within a source file, i.e., within its container, may be judged from the “Test Report” on MediaCoder builds. Their settings were established using Presets defined in the Encoding Guide ( viewtopic.php?f=17&t=9643 ).
#Mediacoder x64 user guide mp4#
The tests for this Guide were done for a conversion to MP4 and/or to MKV. However, note the anomalous behaviour described in Section III and see Section V. Certainly, the choice of Colour is not offered on the Subtitle tab (builds 4797 to 5522, at least) and, under Settings > Overall > Subtitles, the only colour choice relates to the background to the Font, and not the font itself. Note that the Font colour does not appear to be selectable in MediaCoder. Also, in most cases, I left the subtitle ID at 0, the default. I chose three that were easily distinguished from each other: ACaslonPro-Bold, Harlow Solid Italic and Old English Text MT.
#Mediacoder x64 user guide windows#
In my case, with Windows 7, the fonts were merely those already listed under C:/ Windows > Fonts. These were used in conjunction with a number of SRT, SUB and SSA text files created (Section IV) to serve as external subtitle files, when required.ĭepending on the test, I tried a variety of Fonts, selected from the Drop-down menu on the Subtitle tab. Hence, in studying how MediaCoder treats subtitles I considered six source files:Ī: a VOB file containing 8 subtitle streams, as an example of image-based subtitlesī: an MKV file containing a single subtitle stream, presumably text-basedĬ: For use in Sections III and IV, a VOB, an MKV, an MP4 and an AVI file, each without an internal subtitle stream, created using the settings given in the Encoding Guide ( viewtopic.php?f=17&t=9643 ). Hence, the subtitles in files extracted or ripped from these discs, such as VOB files, cannot have their fonts or font colours changed.Īlso, some audio/video files, such as AVI, MP4 and MKV, support the inclusion of text-based subtitle streams within them. There, they are present as ‘sub-pictures’, i.e., in the form of images (groups of pixels) whose font and colour are fixed. Subtitles are often found in DVDs and in Blu-ray discs. Hard-Render an External Subtitle Text File The guide was developed from tests done initially in build 5182 and later in 53. This Guide is mainly concerned with the rendering of subtitles in MediaCoder, and once rendered, they cannot be removed, although, adding softsubs is also considered briefly in Section V. It may also be done for other file types, such as MKV (see Section IV, below). Authoring is discussed in ( viewtopic.php?f=17&t=8454&start=0). This may be done for VOBs using an authoring program like Adobe Encore. It is also possible to convert a subtitle text file into a separate subtitle stream, often referred to as softsubs (soft subtitles). Often the subtitle info is supplied by a text file that is separate from the audio/video file (see Section III, below), for example, when associated with AVI files downloaded from the web. This is called rendering and the results are often referred to as hardsubs (hard subtitles). Of course, not all players allow selection of audio or subtitle! In that case, any desired subtitle would need to be burnt into the video stream so that it may be seen – it then becomes a permanent part of the video stream. Examples that do, include MKV files and VOB files, the latter being the type present on a DVD. Not all containers support multiple audio or subtitles. In these cases, during play, the user needs to select which audio is to be heard and what subtitle, if any, is to be seen ‘over’ the video.
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More complicated files may contain more than one audio stream and they may also contain subtitle streams that may be switched on to overlay text to what is viewed or switched off if not required.
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The audio and video streams need to be synchronised and the overall media file is referred to as a Container. The combining of these two streams into one file (container) is called multiplexing or muxing for short and the reverse process (demuxing) is also possible, a topic considered in another Guide ( viewtopic.php?f=17&t=10900). In its simplest form an audio/video media file contains the viewable information (video) in one section of the file (the video ‘stream’) and what you hear, the audio, in a second stream.