[FFmpeg-devel] [PATCH 1/2] img2: added support for %t output pattern

[Roger Pack]

On 9/22/16, Roger Pack <rogerdpack2 at gmail.com> wrote:
> On 1/4/12, Yuval Adam <yuv.adm at gmail.com> wrote:
>> From: Yuval Adam <yuv.adm at gmail.com>
>>
>> The image2 muxer now supports timestamps in output filenames.
>> When used in an output patterm '%t' will be replaced with the frames
>> timestamp in hours, minutes and seconds (hh:mm:ss).
>
> A somewhat updated (but not yet cleaned up) revision:
>
> https://gist.github.com/rdp/e518616f2a702367ae5a922b56e09e04
>
> see also https://trac.ffmpeg.org/ticket/1452

OK attached is the "cleaned up" patch, ready for review/commit.

how to test:
(apply then) run this:

./ffmpeg -i input -copyts -vsync vfr temp/abc-%d-%t.jpeg
and compare filenames with the timestamps from video packets of
ffprobe -show_packets.

Probably a better way would have been to mix it into
av_bprint_strftime however I wasn't sure how to use that within
libavformat/utils.c av_get_frame_filename2

Adam's initial patch
(https://github.com/yuvadm/FFmpeg/commit/0eb002821a2076cb3593c823399aeef9fdd29525)
also deprecated av_get_frame_filename

but I wasn't sure if we wanted that here or not so didn't include it.
Thank you for your consideration.
-roger-
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