mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-19 10:30:30 +00:00
390cbe1f00
This allow negotiating the output format through caps. Some drivers can pipeline the decoder buffer through an image processor. This only support colorspace conversion for now.
116 lines
5.1 KiB
C
116 lines
5.1 KiB
C
/* 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_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);
|
|
|
|
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);
|
|
|
|
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);
|
|
|
|
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);
|
|
|
|
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__ */
|