[Bug 751772] New: Can't specify muxer options for avformat_write_header

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Wed Jul 1 02:12:19 PDT 2015


https://bugzilla.gnome.org/show_bug.cgi?id=751772

            Bug ID: 751772
           Summary: Can't specify muxer options for avformat_write_header
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-libav
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: me at davidsansome.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Created attachment 306476
  --> https://bugzilla.gnome.org/attachment.cgi?id=306476&action=edit
Allow libav muxer-specific options to be passed to muxer elements

I'd like to be able to pass muxer-specific options to the second argument of
avformat_write_header
(http://ffmpeg.org/doxygen/trunk/group__lavf__encoding.html#ga78d4e734fecb1d2385536e6dd5b7b9f5),
specifically to let me configure the mp4 muxer to output fragmented mp4 files
with -movflags empty_moov and -frag_duration <n>.

The attached patch adds an "options" property to all muxers that's a ':'
separated list of option=value pairs to be added to this options dict.

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