| 1 | /* GStreamer |
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| 2 | * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> |
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| 3 | * 2000 Wim Taymans <wim.taymans@chello.be> |
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| 4 | * |
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| 5 | * gstprobe.h: Header for GstProbe object |
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| 6 | * |
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| 7 | * This library is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Library General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * This library is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Library General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Library General Public |
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| 18 | * License along with this library; if not, write to the |
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| 19 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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| 20 | * Boston, MA 02111-1307, USA. |
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| 21 | */ |
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| 22 | |
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| 23 | |
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| 24 | #ifndef __GST_PROBE_H__ |
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| 25 | #define __GST_PROBE_H__ |
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| 26 | |
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| 27 | #include <glib.h> |
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| 28 | #include <gst/gstdata.h> |
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| 29 | |
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| 30 | G_BEGIN_DECLS |
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| 31 | |
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| 32 | typedef struct _GstProbe GstProbe; |
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| 33 | |
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| 34 | /* the callback should return FALSE if the data should be discarded */ |
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| 35 | typedef gboolean (*GstProbeCallback) (GstProbe *probe, |
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| 36 | GstData **data, |
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| 37 | gpointer user_data); |
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| 38 | |
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| 39 | struct _GstProbe { |
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| 40 | gboolean single_shot; |
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| 41 | |
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| 42 | GstProbeCallback callback; |
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| 43 | gpointer user_data; |
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| 44 | }; |
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| 45 | |
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| 46 | |
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| 47 | GstProbe* gst_probe_new (gboolean single_shot, |
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| 48 | GstProbeCallback callback, |
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| 49 | gpointer user_data); |
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| 50 | void gst_probe_destroy (GstProbe *probe); |
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| 51 | |
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| 52 | gboolean gst_probe_perform (GstProbe *probe, GstData **data); |
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| 53 | |
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| 54 | typedef struct _GstProbeDispatcher GstProbeDispatcher; |
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| 55 | |
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| 56 | struct _GstProbeDispatcher { |
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| 57 | gboolean active; |
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| 58 | |
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| 59 | GSList *probes; |
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| 60 | }; |
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| 61 | |
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| 62 | GstProbeDispatcher* gst_probe_dispatcher_new (void); |
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| 63 | void gst_probe_dispatcher_destroy (GstProbeDispatcher *disp); |
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| 64 | void gst_probe_dispatcher_init (GstProbeDispatcher *disp); |
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| 65 | |
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| 66 | void gst_probe_dispatcher_set_active (GstProbeDispatcher *disp, gboolean active); |
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| 67 | void gst_probe_dispatcher_add_probe (GstProbeDispatcher *disp, GstProbe *probe); |
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| 68 | void gst_probe_dispatcher_remove_probe (GstProbeDispatcher *disp, GstProbe *probe); |
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| 69 | |
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| 70 | gboolean gst_probe_dispatcher_dispatch (GstProbeDispatcher *disp, GstData **data); |
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| 71 | |
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| 72 | G_END_DECLS |
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| 73 | |
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| 74 | |
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| 75 | #endif /* __GST_PAD_H__ */ |
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| 76 | |
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