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53e5f028ec
Original commit message from CVS: Patch by: Ole André Vadla Ravnås <ole.andre.ravnas at tandberg com> * sys/dshowsrcwrapper/gstdshowvideosrc.c: (PROP_DEVICE_NAME), (gst_dshowvideosrc_class_init), (gst_dshowvideosrc_init), (gst_dshowvideosrc_dispose), (gst_dshowvideosrc_stop), (gst_dshowvideosrc_unlock), (gst_dshowvideosrc_unlock_stop), (gst_dshowvideosrc_create), (gst_dshowvideosrc_push_buffer): * sys/dshowsrcwrapper/gstdshowvideosrc.h: Don't increase latency by queuing buffers in an async queue when the streaming thread can't keep up or isn't scheduled often enough for some other reason, but just drop the previous buffer in that case. Also implement GstBaseSrc::unlock for faster unlocking when shutting down. (#520892).
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
/* GStreamer
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* Copyright (C) 2007 Sebastien Moutte <sebastien@moutte.net>
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*
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* gstdshowvideosrc.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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_DSHOWVIDEOSRC_H__
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#define __GST_DSHOWVIDEOSRC_H__
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#include <gst/gst.h>
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#include <gst/base/gstpushsrc.h>
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#include <gst/interfaces/propertyprobe.h>
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#include "gstdshowsrcwrapper.h"
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// 30323449-0000-0010-8000-00AA00389B71 MEDIASUBTYPE_I420
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DEFINE_GUID(MEDIASUBTYPE_I420, 0x30323449, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71);
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G_BEGIN_DECLS
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#define GST_TYPE_DSHOWVIDEOSRC (gst_dshowvideosrc_get_type())
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#define GST_DSHOWVIDEOSRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DSHOWVIDEOSRC,GstDshowVideoSrc))
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#define GST_DSHOWVIDEOSRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DSHOWVIDEOSRC,GstDshowVideoSrcClass))
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#define GST_IS_DSHOWVIDEOSRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DSHOWVIDEOSRC))
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#define GST_IS_DSHOWVIDEOSRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DSHOWVIDEOSRC))
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typedef struct _GstDshowVideoSrc GstDshowVideoSrc;
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typedef struct _GstDshowVideoSrcClass GstDshowVideoSrcClass;
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struct _GstDshowVideoSrc
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{
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GstPushSrc src;
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/* device dshow reference (generally classid/name) */
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gchar *device;
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/* device friendly name */
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gchar *device_name;
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/* list of caps created from the list of supported media types of the dshow capture filter */
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GstCaps *caps;
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/* list of dshow media types from the filter's capture pins */
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GList *pins_mediatypes;
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/* dshow video capture filter */
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IBaseFilter *video_cap_filter;
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/* dshow sink filter */
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IBaseFilter *dshow_fakesink;
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/* graph manager interfaces */
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IMediaFilter *media_filter;
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IFilterGraph *filter_graph;
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/* the last buffer from DirectShow */
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GCond * buffer_cond;
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GMutex * buffer_mutex;
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GstBuffer * buffer;
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gboolean stop_requested;
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gboolean is_rgb;
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gint width;
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gint height;
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};
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struct _GstDshowVideoSrcClass
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{
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GstPushSrcClass parent_class;
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};
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GType gst_dshowvideosrc_get_type (void);
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G_END_DECLS
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#endif /* __GST_DSHOWVIDEOSRC_H__ */
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