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