1 /* GStreamer |
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2 * |
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3 * gstv4lsrc.h: BT8x8/V4L video source element |
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4 * |
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5 * Copyright (C) 2001-2002 Ronald Bultje <rbultje@ronald.bitfreak.net> |
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6 * |
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7 * This library is free software; you can redistribute it and/or |
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8 * modify it under the terms of the GNU Library General Public |
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9 * License as published by the Free Software Foundation; either |
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10 * version 2 of the License, or (at your option) any later version. |
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11 * |
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12 * This library is distributed in the hope that it will be useful, |
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Library General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Library General Public |
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18 * License along with this library; if not, write to the |
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19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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20 * Boston, MA 02111-1307, USA. |
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21 */ |
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22 |
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23 #ifndef __GST_V4LSRC_H__ |
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24 #define __GST_V4LSRC_H__ |
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25 |
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26 |
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27 #include <gstv4lelement.h> |
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28 |
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29 |
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30 G_BEGIN_DECLS |
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31 |
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32 |
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33 #define GST_TYPE_V4LSRC \ |
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34 (gst_v4lsrc_get_type()) |
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35 #define GST_V4LSRC(obj) \ |
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36 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_V4LSRC,GstV4lSrc)) |
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37 #define GST_V4LSRC_CLASS(klass) \ |
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38 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_V4LSRC,GstV4lSrcClass)) |
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39 #define GST_IS_V4LSRC(obj) \ |
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40 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_V4LSRC)) |
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41 #define GST_IS_V4LSRC_CLASS(klass) \ |
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42 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_V4LSRC)) |
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43 |
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44 |
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45 typedef struct _GstV4lSrc GstV4lSrc; |
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46 typedef struct _GstV4lSrcClass GstV4lSrcClass; |
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47 |
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48 |
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49 enum |
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50 { |
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51 QUEUE_STATE_ERROR = -1, |
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52 QUEUE_STATE_READY_FOR_QUEUE, /* the frame is ready to be queued for capture */ |
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53 QUEUE_STATE_QUEUED, /* the frame is queued for capture */ |
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54 QUEUE_STATE_SYNCED /* the frame is captured */ |
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55 }; |
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56 |
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57 |
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58 struct _GstV4lSrc |
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59 { |
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60 GstV4lElement v4lelement; |
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61 |
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62 /* pads */ |
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63 GstPad *srcpad; |
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64 |
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65 /* capture/buffer info */ |
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66 struct video_mmap mmap; |
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67 struct video_mbuf mbuf; |
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68 guint buffer_size; |
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69 GstClockTime timestamp_sync; |
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70 |
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71 /* num of queued frames and some GThread stuff |
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72 * to wait if there's not enough */ |
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73 gint8 *frame_queue_state; |
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74 GMutex *mutex_queue_state; |
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75 GCond *cond_queue_state; |
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76 gint num_queued; |
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77 gint sync_frame, queue_frame; |
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78 gboolean is_capturing; |
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79 GstClockTimeDiff timestamp_offset; |
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80 |
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81 /* True if we want to stop */ |
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82 gboolean quit; |
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83 |
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84 gint offset; |
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85 |
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86 /* list of supported colorspaces (as integers) */ |
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87 GList *colorspaces; |
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88 |
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89 gboolean autoprobe; /* probe features on startup ? */ |
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90 gboolean autoprobe_fps; /* probe fps on startup ? */ |
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91 gboolean copy_mode; |
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92 |
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93 GValue *fps_list; /* list of fps probed */ |
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94 }; |
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95 |
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96 struct _GstV4lSrcClass |
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97 { |
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98 GstV4lElementClass parent_class; |
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99 }; |
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100 |
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101 |
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102 GType gst_v4lsrc_get_type (void); |
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103 |
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104 |
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105 G_END_DECLS |
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106 |
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107 |
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108 #endif /* __GST_V4LSRC_H__ */ |
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