Hi, Here is updated version, please comment. -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-avfilter-add-showfreqs-filter.patch Type: application/octet-stream Size: 24875 bytes Desc: not available URL: <http://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20150808/0d4bfbe0/attachment.obj>