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The loop situation Matt described is possible. When ast_channel_suppress() is called, it results in AST_FRAME_VOICE being turned into AST_FRAME_NULL. If there is a jitter buffer on a channel, then AST_FRAME_NULL gets turned into AST_FRAME_VOICE. While I don't think this will loop infinitely, it may result in the jitter buffer being depleted. - Mark Michelson On Dec. 9, 2013, 1:27 a.m., Joshua Colp wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviewboard.asterisk.org/r/3046/ > ----------------------------------------------------------- > > (Updated Dec. 9, 2013, 1:27 a.m.) > > > Review request for Asterisk Developers. > > > Repository: Asterisk > > > Description > ------- > > Currently when a frame is changed by a frame hook previous hooks aren't aware > of it. This can be a problem when a previous hook reacts to the types of > frames that a subsequent hook produces. An example of this would be the fax > gateway hook and the PJSIP T.38 hook. Since the fax gateway hook injects T.38 > control frames after the T.38 hook, nothing happens. > > The attached change makes it so if a frame hook produces a different frame > the hook iteration loop is restarted, skipping the hook that has produced the > frame. > > > Diffs > ----- > > /branches/12/main/framehook.c 403448 > > Diff: https://reviewboard.asterisk.org/r/3046/diff/ > > > Testing > ------- > > Ran fax tests, confirmed fixed. > > > Thanks, > > Joshua Colp > >
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