Explain usage of image formats other than GIF.

patch by Victor Paesa, wzrlpy *at* arsystel com

Originally committed as revision 5824 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Víctor Paesa 19 years ago committed by Diego Biurrun
parent d4b0cca737
commit ad21ad451c
  1. 27
      doc/faq.texi

@ -30,6 +30,33 @@ If the JPEGs are named img1.jpg, img2.jpg, img3.jpg,..., use:
The same system is used for the other image formats.
@section Only GIF is listed by -format. Is that the only accepted image format?
No, there are more; they are listed among the video codecs:
jpeg, png, ppm, pbm, pam, pgm.
For example:
@example
ffmpeg -f image2 -i menu.png -f image2 menu.jpg
@end example
The @file{menu.png} used as input will be converted to @file{menu.jpg}.
Instead of relying on file format self-recognition, you may also use
@table @option
@item -vcodec ppm
@item -vcodec png
@item -vcodec mjpeg
@end table
to force the encoding.
Applying that to the previous example:
@example
ffmpeg -f image2 -vcodec png -i menu.png -f image2 -vcodec mjpeg menu.jpg
@end example
Beware that there is no "jpeg" codec. Use "mjpeg" instead.
@section FFmpeg does not support codec XXX. Can you include a Windows DLL loader to support it ?
No. FFmpeg only supports open source codecs. Windows DLLs are not

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