avformat/img2dec: add option to provide metadata fields related to input path

[ffmpeg] / doc / demuxers.texi

diff --git a/doc/demuxers.texi b/doc/demuxers.texi
index 0d13bdd1b309542fce7a3a03d68ef70b4acf7c92..2de14b68d349f6e03e88a185359c65d71e715d7b 100644 (file)
--- a/doc/demuxers.texi
+++ b/doc/demuxers.texi
@@ -456,6 +456,17 @@ nanosecond precision.
 @item video_size
 Set the video size of the images to read. If not specified the video
 size is guessed from the first image file in the sequence.
+@item export_path_metadata
+If set to 1, will add two extra fields to the metadata found in input, making them
+also available for other filters (see @var{drawtext} filter for examples). Default
+value is 0. The extra fields are described below:
+@table @option
+@item lavf.image2dec.source_path
+Corresponds to the full path to the input file being read.
+@item lavf.image2dec.source_basename
+Corresponds to the name of the file being read.
+@end table
+
 @end table
 
 @subsection Examples