[FFmpeg-devel] [PATCH] avfilter/drawtext: special metadata fields to allow plotting source filename to output.

[Michael Niedermayer]

On Sat, Dec 14, 2019 at 10:59:31PM +0000, Alexandre Heitor Schmidt wrote:
> avfilter/drawtext: Added two special metadata tags which can, be used by
> 'drawtext' filter and others to have access to source file path, and its
> basename.
> 
> The new field AVPacket->source_file will contain a path to its corresponding
> filename everytime the packet corresponds to a single file. This behavior is
> common for image2 filter. When this field is filled, frames passed to filters
> will contain two special metadata tags called source_path (the entire path to
> the file) and source_basename (only the file name). These metatags can be
> used by filters like drawtext to be able to plot the entire path or the
> basename of it respectively to the frame being processed.
> 
> doc/filters: The documentation for drawtext was also updated and an usage
> example was added.
> 
> Fixes #2874.
> 
> Signed-off-by: Alexandre Heitor Schmidt <alexandre.schmidt at gmail.com>
> ---
>  doc/filters.texi      | 13 +++++++++++++
>  fftools/ffmpeg.c      | 12 ++++++++++++
>  libavcodec/avcodec.h  |  8 ++++++++
>  libavcodec/avpacket.c |  1 +
>  libavformat/img2dec.c |  9 +++++++++
>  5 files changed, 43 insertions(+)

doc/filters.texi:9885: misplaced {
doc/filters.texi:9885: misplaced }
make: *** [doc/ffprobe-all.html] Error 1
make: *** Waiting for unfinished jobs....
doc/filters.texi:9885: misplaced {
doc/filters.texi:9885: misplaced }
make: *** [doc/ffplay-all.html] Error 1
doc/filters.texi:9885: misplaced {
doc/filters.texi:9885: misplaced }
make: *** [doc/ffmpeg-all.html] Error 1
doc/filters.texi:9885: misplaced {
doc/filters.texi:9885: misplaced }
make: *** [doc/ffmpeg-filters.html] Error 1

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Let us carefully observe those good qualities wherein our enemies excel us
and endeavor to excel them, by avoiding what is faulty, and imitating what
is excellent in them. -- Plutarch
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