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27eb6555d1
If set_caps is called in a running state, return immediately if the caps haven't changed. If the pins are already connected, disconnect them. https://bugzilla.gnome.org/show_bug.cgi?id=736926
105 lines
3.7 KiB
C
105 lines
3.7 KiB
C
/* GStreamer
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* Copyright (C) 2007 Sebastien Moutte <sebastien@moutte.net>
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*
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* gstdshow.h:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef _GSTDSHOW_
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#define _GSTDSHOW_
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#include <streams.h>
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#include <windows.h>
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#include <tchar.h>
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#include <objbase.h>
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#include <dshow.h>
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#include <Rpc.h>
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#include <gst/gst.h>
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#include <gst/video/video.h>
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typedef struct _GstCapturePinMediaType
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{
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AM_MEDIA_TYPE *mediatype;
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IPin *capture_pin;
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VIDEO_STREAM_CONFIG_CAPS vscc;
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//default caps
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gint defaultWidth;
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gint defaultHeight;
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gint defaultFPS;
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gint granularityWidth; //will be removed when GST_TYPE_INT_RANGE_STEP exits
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gint granularityHeight; //will be removed when GST_TYPE_INT_RANGE_STEP exits
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} GstCapturePinMediaType;
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/* free memory of the input pin mediatype */
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void gst_dshow_free_pin_mediatype (gpointer pt);
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/* free memory of the input dshow mediatype */
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void gst_dshow_free_mediatype (AM_MEDIA_TYPE * pmt);
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/* create a new capture media type that handles dshow video caps of a capture pin */
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GstCapturePinMediaType *gst_dshow_new_pin_mediatype (IPin * pin);
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/* create a new capture media type from enum mediatype */
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GstCapturePinMediaType * gst_dshow_new_pin_mediatype_from_enum_mediatypes (IPin * pin,
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IEnumMediaTypes *enum_mediatypes);
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/* create a new capture media type from streamcaps */
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GstCapturePinMediaType *gst_dshow_new_pin_mediatype_from_streamcaps (IPin * pin,
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gint id, IAMStreamConfig * streamcaps);
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/* free the memory of all mediatypes of the input list if pin mediatype */
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void gst_dshow_free_pins_mediatypes (GList * mediatypes);
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/* allow to know what kind of media type we have */
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gboolean gst_dshow_check_mediatype (AM_MEDIA_TYPE * media_type,
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const GUID sub_type, const GUID format_type);
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/* get a pin from directshow filter */
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gboolean gst_dshow_get_pin_from_filter (IBaseFilter * filter,
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PIN_DIRECTION pindir, IPin ** pin);
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/* find and return a filter according to the input and output types */
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gboolean gst_dshow_find_filter (CLSID input_majortype, CLSID input_subtype,
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CLSID output_majortype, CLSID output_subtype,
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gchar * prefered_filter_name, IBaseFilter ** filter);
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/* get the dshow device path from device friendly name.
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If friendly name is not set, it will return the first available device */
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gchar *gst_dshow_getdevice_from_devicename (const GUID * device_category,
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gchar ** device_name);
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/* show the capture filter property page (generally used to setup the device). the page is modal*/
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gboolean gst_dshow_show_propertypage (IBaseFilter * base_filter);
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/* translate GUID format to gsteamer video format */
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GstVideoFormat gst_dshow_guid_to_gst_video_format (AM_MEDIA_TYPE *mediatype);
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/* check if IPin is connected */
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gboolean gst_dshow_is_pin_connected (IPin *pin);
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/* transform a dshow video caps to a gstreamer video caps */
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GstCaps *gst_dshow_new_video_caps (GstVideoFormat video_format,
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const gchar * name, GstCapturePinMediaType * pin_mediatype);
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/* configure the latency of the capture source */
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bool gst_dshow_configure_latency (IPin *pCapturePin, guint bufSizeMS);
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#endif /* _GSTDSHOW_ */
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