gstreamer/sys/v4l2/v4l2src_calls.h
Andy Wingo 3b5f988239 sys/v4l2/v4l2src_calls.*: Store the format list in the order that the driver gives it to us.
Original commit message from CVS:
2007-05-30  Andy Wingo  <wingo@pobox.com>

* sys/v4l2/v4l2src_calls.h:
* sys/v4l2/v4l2src_calls.c (gst_v4l2src_fill_format_list): Store
the format list in the order that the driver gives it to us.
(gst_v4l2src_probe_caps_for_format_and_size)
(gst_v4l2src_probe_caps_for_format): New functions, fill GstCaps
based on the capabilities of the device.
(gst_v4l2src_grab_frame): Update for object variable renaming.
(gst_v4l2src_set_capture): Update to be strict in its parameters,
as in the set_caps below.
(gst_v4l2src_capture_init): Update for object variable renaming,
and reflow.
(gst_v4l2src_capture_start, gst_v4l2src_capture_stop)
(gst_v4l2src_capture_deinit): Update for object variable renaming.
(gst_v4l2src_update_fps, gst_v4l2src_set_fps)
(gst_v4l2src_get_fps): Remove; these functions don't have much
meaning outside of an atomic set_caps method.
(gst_v4l2src_buffer_new): Don't set buffer duration, it is not
known.

* sys/v4l2/gstv4l2tuner.c (gst_v4l2_tuner_set_channel): Remove
call to update_fps; not sure about this change.
(gst_v4l2_tuner_set_norm): Work around the fact that for the
moment we don't have an update_fps_func.

* sys/v4l2/gstv4l2src.h (struct _GstV4l2Src): Don't put v4l2
structures in the object, just store what we need. Do store the
probed caps of the device. Don't store the current frame rate.

* sys/v4l2/gstv4l2src.c (gst_v4l2src_init): Remove the
update_fps_function, for now. Update for new object variable
naming.
(gst_v4l2src_set_property, gst_v4l2src_get_property): Update for
new object variable naming.
(gst_v4l2src_v4l2fourcc_to_structure): Rename from ..._to_caps.
(gst_v4l2_structure_to_v4l2fourcc): Rename from ...caps_to_....
(gst_v4l2src_get_caps): Rework to probe the device for supported
frame sizes and frame rates.
(gst_v4l2src_set_caps): Rework to be strict in the given
parameters: if someone asks us to have a certain size and rate,
that is what we configure.
(gst_v4l2src_get_read): Update for object variable naming. Don't
leak buffers on short reads.
(gst_v4l2src_get_mmap): Update for object variable naming, and add
comments.
(gst_v4l2src_create): Update for object variable naming.
2007-05-30 14:40:53 +00:00

62 lines
2.6 KiB
C

/* GStreamer
*
* Copyright (C) 2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
* 2006 Edgard Lima <edgard.lima@indt.org.br>
*
* v4l2src.h - system calls
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __V4L2SRC_CALLS_H__
#define __V4L2SRC_CALLS_H__
#include "gstv4l2src.h"
#include "v4l2_calls.h"
gboolean gst_v4l2src_get_capture (GstV4l2Src * v4l2src);
gboolean gst_v4l2src_set_capture (GstV4l2Src * v4l2src,
guint32 pixelformat,
guint32 width, guint32 height,
guint32 fps_n, guint32 fps_d);
gboolean gst_v4l2src_capture_init (GstV4l2Src * v4l2src);
gboolean gst_v4l2src_capture_start (GstV4l2Src * v4l2src);
gint gst_v4l2src_grab_frame (GstV4l2Src * v4l2src);
gboolean gst_v4l2src_queue_frame (GstV4l2Src * v4l2src, guint i);
gboolean gst_v4l2src_capture_stop (GstV4l2Src * v4l2src);
gboolean gst_v4l2src_capture_deinit (GstV4l2Src * v4l2src);
gboolean gst_v4l2src_fill_format_list (GstV4l2Src * v4l2src);
gboolean gst_v4l2src_clear_format_list (GstV4l2Src * v4l2src);
GstCaps* gst_v4l2src_probe_caps_for_format (GstV4l2Src * v4l2src, guint32 pixelformat,
const GstStructure *template);
gboolean gst_v4l2src_get_size_limits (GstV4l2Src * v4l2src,
struct v4l2_fmtdesc *fmt,
gint * min_w, gint * max_w,
gint * min_h, gint * max_h);
/* buffers */
GstBuffer* gst_v4l2src_buffer_new (GstV4l2Src * v4l2src,
guint size, guint8 * data,
GstV4l2Buffer * srcbuf);
void gst_v4l2src_free_buffer (GstBuffer * buffer);
#endif /* __V4L2SRC_CALLS_H__ */