Changes between Version 27 and Version 28 of FilteringGuide
- Timestamp:
- 12/19/2012 03:45:35 PM (5 months ago)
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FilteringGuide
v27 v28 5 5 == Documentation == 6 6 7 Refer to the [http://ffmpeg.org/ffmpeg .html FFmpeg documentation] (sections "audio/video source/filters/sink")for each filters' documentation and examples. This wiki page is for user contributed examples and tips.7 Refer to the [http://ffmpeg.org/ffmpeg-filters.html FFmpeg documentation] for each filters' documentation and examples. This wiki page is for user contributed examples and tips. 8 8 9 9 Contributions to this page are encouraged. … … 16 16 ffmpeg -i input -vf scale=iw/2:-1 output 17 17 }}} 18 ''iw'' is input width. In this example the input width is 640. 640/2 = 320. The ''-1'' tells the scale filter to preserve the aspect ratio of the output, so in this example the scale filter will choose a value of 240. See the [http://ffmpeg.org/ffmpeg .htmlFFmpeg documentation] for additional information.18 ''iw'' is input width. In this example the input width is 640. 640/2 = 320. The ''-1'' tells the scale filter to preserve the aspect ratio of the output, so in this example the scale filter will choose a value of 240. See the [http://ffmpeg.org/ffmpeg-filters.html#scale FFmpeg documentation] for additional information. 19 19 20 20 === Speed up your video === … … 106 106 107 107 === List of Filters === 108 Filters bundled with libavfilter as of 3.15.102 (as configured with `--enable-gpl`). Filters relying on external libraries, such as frei0r, are not listed here. remember, you can get documentation for each on the ffmpeg documentation page, for instance [http://ffmpeg.org/ffmpeg .html#aconvert aconvert's] documentation, etc.108 Filters bundled with libavfilter as of 3.15.102 (as configured with `--enable-gpl`). Filters relying on external libraries, such as frei0r, are not listed here. remember, you can get documentation for each on the ffmpeg documentation page, for instance [http://ffmpeg.org/ffmpeg-filters.html#aconvert aconvert's] documentation, etc. 109 109 {{{ 110 110 aconvert A->A Convert the input audio to sample_fmt:channel_layout.


