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| author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-01-21 13:54:14 +0100 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2011-01-22 14:48:08 +0000 |
| commit | 10ed96c78fde80da9d5bac9b267369861a4f33ba (patch) | |
| tree | a01d37cabe4d5a03de046491666558c9132c9418 | |
| parent | db2ddd38859b26c0a4e4bf92619625cd7e0e7f42 (diff) | |
| download | ffmpeg-10ed96c78fde80da9d5bac9b267369861a4f33ba.tar.gz | |
Amend documentation for the image2 demuxer, to better reflect the current behavior.
Signed-off-by: Mans Rullgard <mans@mansr.com>
| -rw-r--r-- | doc/demuxers.texi | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/doc/demuxers.texi b/doc/demuxers.texi index 5fcaf4ff84..05316ce5cd 100644 --- a/doc/demuxers.texi +++ b/doc/demuxers.texi @@ -24,20 +24,18 @@ Image file demuxer. This demuxer reads from a list of image files specified by a pattern. -The filename of each file to read must contain a sequential number, -which specifies the position of the file in the sequence. - -The pattern must contain the string "%d" or "%0@var{N}d", which -specifies the position of the characters representing the seqential +The pattern may contain the string "%d" or "%0@var{N}d", which +specifies the position of the characters representing a sequential number in each filename matched by the pattern. If the form "%d0@var{N}d" is used, the string representing the number in each filename is 0-padded and @var{N} is the total number of 0-padded digits representing the number. The literal character '%' can be specified in the pattern with the string "%%". -The first filename of the file sequence specified by the pattern must -contain a number inclusively contained between 0 and 4, all the -following numbers must be sequential. +If the pattern contains "%d" or "%0@var{N}d", the first filename of +the file list specified by the pattern must contain a number +inclusively contained between 0 and 4, all the following numbers must +be sequential. This limitation may be hopefully fixed. The pattern may contain a suffix which is used to automatically determine the format of the images contained in the files. @@ -59,4 +57,11 @@ second: ffmpeg -r 10 -f image2 -i 'img-%03d.jpeg' out.avi @end example +Note that the pattern must not necessarily contain "%d" or +"%0@var{N}d", for example to convert a single image file +@file{img.jpeg} you can employ the command: +@example +ffmpeg -f image2 -i img.jpeg img.png +@end example + @c man end INPUT DEVICES |