[Bug 793681] New: splitmuxsink: add a property "location-format-type" to allow filenames with values other than fragment index

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=793681

            Bug ID: 793681
           Summary: splitmuxsink: add a property "location-format-type" to
                    allow filenames with values other than fragment index
    Classification: Platform
           Product: GStreamer
           Version: 1.10.x
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: Normal
         Component: gst-plugins-good
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: abhitechiestar at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

At present, location property only accepts "%d" format specifier which
represents fragment-index. In many cases, it would be helpful to allow
specifying other values such as first buffer PTS in filenames. 

An additional property for splitmuxsink, called "location-format-type" can be
added to specify value type represented by format specifier in location string
pattern. For e.g. if user wants to have first buffer's time in filenames, he
should be able to specify the same by following property values : 

e.g. 
    max-size-time=120000000000
    location=video_%Y-%m-%d_%H:%M:%S
    location-format-type=2

Where, location-format-type can specify different format types such as 
(1): fragment-index   - Fragment Index(Default)
(2): first-buffer-pts - First Buffer PTS

.. and so on

Note:
In plugin version 1.12, a new signal location-format-full was added, which is
flexible to support above mentioned requirement, but it requires users to do
signal handling stuff. While "first buffer's time" as part of filenames, is a
very common requirement, it should be possible to specify by simple
configuration, than complex signal handling stuff. This should justify above
enhancement proposal.

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