[Webkit-unassigned] [Bug 190143] New: [MSE][GStreamer] Add h264parse to accept MP4 without stss

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=190143

            Bug ID: 190143
           Summary: [MSE][GStreamer] Add h264parse to accept MP4 without
                    stss
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: aboya at igalia.com
                CC: bugs-noreply at webkitgtk.org

The MP4 file used in this URL does not contain a stss (Sync Sample
Box). In consequence, in acordance with the ISO BMFF spec, all samples
are assumed to be sync frames... But in this case that is not true,
it's just that the file is wrong (e.g. created with a buggy muxer).

http://orange-opensource.github.io/hasplayer.js/1.2.0/player.html?url=http://playready.directtaps.net/smoothstreaming/SSWSS720H264/SuperSpeedway_720.ism/Manifest

The way it works in other browsers is because instead of trusting the
MP4 stss table, they rely on parsing the h264 frames. We can do that
too, using h264parse.

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