From ad21ad451c39e5b9d955bc5ddac32c4a60d4d5c4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADctor=20Paesa?= <wzrlpy@arsystel.com>
Date: Tue, 25 Jul 2006 11:42:13 +0000
Subject: [PATCH] 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
---
doc/faq.texi | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/doc/faq.texi b/doc/faq.texi
index d4c3ef2edff..64b46faee45 100644
--- a/doc/faq.texi
+++ b/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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