FFmpegConversion class: Difference between revisions
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=== <span style="color:#DF8621">'''Examples'''</span> === | === <span style="color:#DF8621">'''Examples'''</span> === | ||
<source lang="javascript"> | <source lang="javascript"> | ||
Attachment attachment = new Attachment (5224744); | Attachment attachment = new Attachment (5224744); | ||
Revision as of 04:31, 19 February 2020
FFmpegConversion
Glue class to call FFmpeg library to convert media
Constructors
- (Attachment attachment "Attachment to convert") - Convert existing file
- (string filename "Name of the file", bool isTemp "Is the file temporary") - Convert existing file
Methods
- number Convert() - Start the conversion process, return number of seconds it took
- Empty SetAudioConversionToMp3(int nth "Pick the nth audiostream in the source", int compression "Level of compression from 0 to 9, with 9 being worst quality. see https://trac.ffmpeg.org/wiki/Encode/MP3") - Convert the source audio stream to MP3 format. If the source is already mp3. If already mp3 and similar or lower quality in source no further loss is done
- string ToString() - The string representation of the object.
Properties
- string ObjectTypeName { get; } - The name of the type of object.
- TypeInformation TypeInformation { get; } - Get information about this class.
Examples
Attachment attachment = new Attachment (5224744);
FFmpegConversion conv = new FFmpegConversion(attachment);
conv.SetAudioConversionToMp3(0, 5);
conv.Convert();
//Noted that: after converting will overwrite the source media file, so better, should name the source file with .mp3
//Result: the attachment will be updated, the file size will be down