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160df421ea
while having the default vtdec at secondary rank. This allows decodebin/playbin to prefer the hardware based decoders, and if that fails to initialize because hardware resources are busy to fall back to e.g. the libav based h264 decoder instead of the software based vtdec (which is slower), and only fall back to the software based vtdec if there is no higher ranked decoder available.
65 lines
2 KiB
C
65 lines
2 KiB
C
/* GStreamer
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* Copyright (C) 2010, 2013 Ole André Vadla Ravnås <oleavr@soundrop.com>
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* Copyright (C) 2012, 2013 Alessandro Decina <alessandro.d@gmail.com>
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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 _GST_VTDEC_H_
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#define _GST_VTDEC_H_
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#include <gst/video/video.h>
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#include <gst/video/gstvideodecoder.h>
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#include <CoreMedia/CoreMedia.h>
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#include <VideoToolbox/VideoToolbox.h>
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#include "corevideotexturecache.h"
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G_BEGIN_DECLS
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#define GST_TYPE_VTDEC (gst_vtdec_get_type())
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#define GST_VTDEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VTDEC,GstVtdec))
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#define GST_VTDEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VTDEC,GstVtdecClass))
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#define GST_IS_VTDEC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VTDEC))
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#define GST_IS_VTDEC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VTDEC))
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typedef struct _GstVtdec GstVtdec;
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typedef struct _GstVtdecClass GstVtdecClass;
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struct _GstVtdec
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{
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GstVideoDecoder base_vtdec;
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GstVideoInfo video_info;
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CMFormatDescriptionRef format_description;
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VTDecompressionSessionRef session;
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GAsyncQueue *reorder_queue;
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gint reorder_queue_length;
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GstCoreVideoTextureCache *texture_cache;
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gboolean require_hardware;
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};
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struct _GstVtdecClass
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{
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GstVideoDecoderClass base_vtdec_class;
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};
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GType gst_vtdec_get_type (void);
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void gst_vtdec_register_elements (GstPlugin * plugin);
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G_END_DECLS
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#endif
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