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/* GStreamer
* Copyright (C) 2020 Nicolas Dufresne <nicolas.dufresne@collabora.com>
*
* 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
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* 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 __GST_V4L2_DECODER_H__
#define __GST_V4L2_DECODER_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include "gstv4l2codecdevice.h"
#include "linux/videodev2.h"
G_BEGIN_DECLS
#define GST_TYPE_V4L2_DECODER gst_v4l2_decoder_get_type ()
G_DECLARE_FINAL_TYPE (GstV4l2Decoder, gst_v4l2_decoder, GST, V4L2_DECODER, GstObject);
typedef struct _GstV4l2Request GstV4l2Request;
GstV4l2Decoder * gst_v4l2_decoder_new (GstV4l2CodecDevice * device);
gboolean gst_v4l2_decoder_open (GstV4l2Decoder * decoder);
gboolean gst_v4l2_decoder_close (GstV4l2Decoder * decoder);
gboolean gst_v4l2_decoder_streamon (GstV4l2Decoder * self,
GstPadDirection direction);
gboolean gst_v4l2_decoder_streamoff (GstV4l2Decoder * self,
GstPadDirection direction);
gboolean gst_v4l2_decoder_flush (GstV4l2Decoder * self);
gboolean gst_v4l2_decoder_enum_sink_fmt (GstV4l2Decoder * self,
gint i, guint32 * out_fmt);
gboolean gst_v4l2_decoder_set_sink_fmt (GstV4l2Decoder * self, guint32 fmt,
gint width, gint height,
gint pixel_bitdepth);
GstCaps * gst_v4l2_decoder_enum_src_formats (GstV4l2Decoder * self);
gboolean gst_v4l2_decoder_select_src_format (GstV4l2Decoder * self,
GstCaps * caps,
GstVideoInfo * info);
gint gst_v4l2_decoder_request_buffers (GstV4l2Decoder * self,
GstPadDirection direction,
guint num_buffers);
gboolean gst_v4l2_decoder_export_buffer (GstV4l2Decoder * self,
GstPadDirection directon,
gint index,
gint * fds,
gsize * sizes,
gsize * offsets,
guint *num_fds);
gboolean gst_v4l2_decoder_queue_sink_mem (GstV4l2Decoder * self,
GstV4l2Request * request,
GstMemory * mem,
guint32 frame_num,
gsize bytesused,
guint flags);
gboolean gst_v4l2_decoder_dequeue_sink (GstV4l2Decoder * self);
gboolean gst_v4l2_decoder_queue_src_buffer (GstV4l2Decoder * self,
GstBuffer * buffer,
guint32 frame_num);
gboolean gst_v4l2_decoder_dequeue_src (GstV4l2Decoder * self,
guint32 *out_frame_num);
gboolean gst_v4l2_decoder_set_controls (GstV4l2Decoder * self,
GstV4l2Request * request,
struct v4l2_ext_control *control,
guint count);
gboolean gst_v4l2_decoder_get_controls (GstV4l2Decoder * self,
struct v4l2_ext_control * control,
guint count);
void gst_v4l2_decoder_install_properties (GObjectClass * gobject_class,
gint prop_offset,
GstV4l2CodecDevice * device);
void gst_v4l2_decoder_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
void gst_v4l2_decoder_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
void gst_v4l2_decoder_register (GstPlugin * plugin,
GType dec_type,
GClassInitFunc class_init,
GInstanceInitFunc instance_init,
const gchar *element_name_tmpl,
GstV4l2CodecDevice * device,
guint rank);
GstV4l2Request *gst_v4l2_decoder_alloc_request (GstV4l2Decoder * self);
void gst_v4l2_request_free (GstV4l2Request * request);
gboolean gst_v4l2_request_queue (GstV4l2Request * request);
gint gst_v4l2_request_poll (GstV4l2Request * request, GstClockTime timeout);
void gst_v4l2_request_set_done (GstV4l2Request * request);
gboolean gst_v4l2_request_is_done (GstV4l2Request * request);
G_END_DECLS
#endif /* __GST_V4L2_DECODER_H__ */
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