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Original commit message from CVS: 2007-06-12 Andy Wingo <wingo@pobox.com> * sys/v4l2/v4l2src_calls.c (gst_v4l2_buffer_finalize) (gst_v4l2_buffer_class_init, gst_v4l2_buffer_get_type) (gst_v4l2_buffer_new): Behave more like ximagesink's buffers, with finalization and resuscitation. No longer public. (gst_v4l2_buffer_pool_finalize, gst_v4l2_buffer_pool_init) (gst_v4l2_buffer_pool_class_init, gst_v4l2_buffer_pool_get_type) (gst_v4l2_buffer_pool_new, gst_v4l2_buffer_pool_activate) (gst_v4l2_buffer_pool_destroy): Make the pool follow common miniobject semantics, and be threadsafe. (gst_v4l2src_queue_frame): Remove this function, as we just call the ioctls directly in the two places where we queue buffers. (gst_v4l2src_grab_frame): Return a flowreturn and fill the buffer directly. (gst_v4l2src_capture_init): Use the new buffer_pool_new function to allocate the pool, which also preallocates the GstBuffers. (gst_v4l2src_capture_start): Call buffer_pool_activate instead of queueing the frames directly. * sys/v4l2/gstv4l2src.h (struct _GstV4l2BufferPool): Make this a real MiniObject instead of rolling our own refcounting and finalizing. Give it a lock. (struct _GstV4l2Buffer): Remove one intermediary object, having the buffers hold the struct v4l2_buffer directly. * sys/v4l2/gstv4l2src.c (gst_v4l2src_set_caps): Pass the caps to capture_init so that it can set them on the buffers that it will create. (gst_v4l2src_get_read): For better or for worse, include the timestamping and offsetting code here; really we should be using bufferalloc though. (gst_v4l2src_get_mmap): Just make grab_frame return one of our preallocated, mmap'd buffers.
55 lines
2.2 KiB
C
55 lines
2.2 KiB
C
/* GStreamer
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*
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* Copyright (C) 2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* 2006 Edgard Lima <edgard.lima@indt.org.br>
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*
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* v4l2src.h - system calls
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __V4L2SRC_CALLS_H__
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#define __V4L2SRC_CALLS_H__
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#include "gstv4l2src.h"
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#include "v4l2_calls.h"
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gboolean gst_v4l2src_get_capture (GstV4l2Src * v4l2src);
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gboolean gst_v4l2src_set_capture (GstV4l2Src * v4l2src,
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guint32 pixelformat,
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guint32 width, guint32 height,
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guint32 fps_n, guint32 fps_d);
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gboolean gst_v4l2src_capture_init (GstV4l2Src * v4l2src, GstCaps *caps);
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gboolean gst_v4l2src_capture_start (GstV4l2Src * v4l2src);
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GstFlowReturn gst_v4l2src_grab_frame (GstV4l2Src * v4l2src, GstBuffer **buf);
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gboolean gst_v4l2src_capture_stop (GstV4l2Src * v4l2src);
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gboolean gst_v4l2src_capture_deinit (GstV4l2Src * v4l2src);
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gboolean gst_v4l2src_fill_format_list (GstV4l2Src * v4l2src);
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gboolean gst_v4l2src_clear_format_list (GstV4l2Src * v4l2src);
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GstCaps* gst_v4l2src_probe_caps_for_format (GstV4l2Src * v4l2src, guint32 pixelformat,
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const GstStructure *template);
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gboolean gst_v4l2src_get_size_limits (GstV4l2Src * v4l2src,
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struct v4l2_fmtdesc *fmt,
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gint * min_w, gint * max_w,
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gint * min_h, gint * max_h);
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#endif /* __V4L2SRC_CALLS_H__ */
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