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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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f01e71d4ad
In previous implementation that job was split between handle_frame and the processing loop and it wasn't clear if this mechanism was race free. The capture setup would also be tried for every buffer, which was not necessary. This also simplify the handling of SRC_CH event, dropping the unneeded atomic boolean. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4525>
84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
/*
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* Copyright (C) 2014 Collabora Ltd.
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* Author: Nicolas Dufresne <nicolas.dufresne@collabora.co.uk>
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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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*/
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#ifndef __GST_V4L2_VIDEO_DEC_H__
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#define __GST_V4L2_VIDEO_DEC_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/video/gstvideodecoder.h>
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#include <gst/video/gstvideometa.h>
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#include <gstv4l2object.h>
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#include <gstv4l2bufferpool.h>
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G_BEGIN_DECLS
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#define GST_TYPE_V4L2_VIDEO_DEC \
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(gst_v4l2_video_dec_get_type())
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#define GST_V4L2_VIDEO_DEC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_V4L2_VIDEO_DEC,GstV4l2VideoDec))
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#define GST_V4L2_VIDEO_DEC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_V4L2_VIDEO_DEC,GstV4l2VideoDecClass))
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#define GST_IS_V4L2_VIDEO_DEC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_V4L2_VIDEO_DEC))
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#define GST_IS_V4L2_VIDEO_DEC_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_V4L2_VIDEO_DEC))
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typedef struct _GstV4l2VideoDec GstV4l2VideoDec;
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typedef struct _GstV4l2VideoDecClass GstV4l2VideoDecClass;
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struct _GstV4l2VideoDec
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{
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GstVideoDecoder parent;
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/* < private > */
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GstV4l2Object * v4l2output;
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GstV4l2Object * v4l2capture;
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/* pads */
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GstCaps *probed_srccaps;
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GstCaps *probed_sinkcaps;
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/* State */
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GstVideoCodecState *input_state;
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gboolean active;
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GstFlowReturn output_flow;
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};
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struct _GstV4l2VideoDecClass
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{
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GstVideoDecoderClass parent_class;
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gchar *default_device;
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};
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GType gst_v4l2_video_dec_get_type (void);
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gboolean gst_v4l2_is_video_dec (GstCaps * sink_caps, GstCaps * src_caps);
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void gst_v4l2_video_dec_register (GstPlugin * plugin,
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const gchar *basename,
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const gchar *device_path, gint video_fd,
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GstCaps * sink_caps, GstCaps * src_caps);
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G_END_DECLS
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#endif /* __GST_V4L2_VIDEO_DEC_H__ */
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