[libcvd-members] libcvd/progs video_capture.h

[Joseph Newman]

CVSROOT:        /sources/libcvd
Module name:    libcvd
Changes by:     Joseph Newman <jfn20>   10/04/30 10:48:34

Added files:
        progs          : video_capture.h 

Log message:
        header file for video_capture.m

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/libcvd/progs/video_capture.h?cvsroot=libcvd&rev=1.1

Patches:
Index: video_capture.h
===================================================================
RCS file: video_capture.h
diff -N video_capture.h
--- /dev/null   1 Jan 1970 00:00:00 -0000
+++ video_capture.h     30 Apr 2010 10:48:32 -0000      1.1
@@ -0,0 +1,89 @@
+#ifndef _VIDEO_CAPTURE_H_
+#define _VIDEO_CAPTURE_H_
+
+#define VC_MAX_PLANES 4
+
+typedef struct video_capture* vcapture;
+
+enum vcapture_format_type {
+  VC_TYPE_UNKNOWN,
+  VC_TYPE_RGB,         // packed: bytes = R0, G0, B0, ...
+  VC_TYPE_ARGB,        // packed: bytes = A0, R0, G0, B0, ...
+  VC_TYPE_RGBA,        // packed: bytes = R0, G0, B0, A0, ...
+  VC_TYPE_FOURCC_2uvy, // packed: bytes = Cb, Y0, Cr, Y1, ... pixels 0 & 1 
share Cb, Cr
+  VC_TYPE_FOURCC_yuvs, // packed: bytes = Y0, Cb, Y1, Cr, ... pixels 0 & 1 
share Cb, Cr
+  VC_TYPE_FOURCC_YVYU, // packed: bytes = Y1, Cr, Y0, Cb, ... pixels 0 & 1 
share Cb, Cr
+  VC_TYPE_FOURCC_yuvu, // packed: bytes = Y0, Cb, Y1, Cr, ... pixels 0 & 1 
share Cb, Cr
+};
+
+enum vcapture_error {
+  VC_SUCCESS = 0,
+  VC_INVALID_DEVICE = -1,
+  VC_DEVICE_OPEN_ERROR = -2,
+  VC_NO_ACTIVE_DEVICE = -3,
+  VC_DEVICE_RUNNING = -4
+};
+
+struct vcapture_frame {
+  int count; // 0 if component/packed video, otherwise number of planes
+  void* planes[VC_MAX_PLANES];
+};
+
+
+// zero means unspecified
+// only type, fourcc, width, and height are observed in set_format
+// if type and fourcc are both set, fourcc wins
+struct vcapture_frame_format {
+  enum vcapture_format_type type;
+  unsigned int fourcc;
+  int width;
+  int height;
+  int bytes_per_row;
+  int pad_left;
+  int pad_top;
+  int pad_right;
+  int pad_bottom;
+};
+
+typedef void (*vcapture_frame_callback)(const struct vcapture_frame_format* 
format,
+                                        const struct vcapture_frame* frame,
+                                        unsigned long long int timestamp,
+                                        void* userdata);
+
+
+    
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+unsigned int vcapture_type_to_fourcc(enum vcapture_format_type type);
+enum vcapture_format_type vcapture_fourcc_to_type(unsigned int fourcc);
+
+void vcapture_poll(int msec);
+
+vcapture vcapture_alloc();
+void vcapture_free(vcapture v);
+
+int vcapture_device_count(vcapture v);
+const char* vcapture_device_name(vcapture v, int device);
+
+int vcapture_get_device(vcapture v);
+int vcapture_set_device(vcapture v, int device);
+
+int vcapture_get_requested_format(vcapture v, struct vcapture_frame_format* f);
+int vcapture_set_requested_format(vcapture v, const struct 
vcapture_frame_format* f);
+
+vcapture_frame_callback vcapture_get_callback(vcapture v);
+int vcapture_set_callback(vcapture v, 
+                          vcapture_frame_callback callback, 
+                          void* userdata);
+
+int vcapture_active(vcapture v);
+int vcapture_start(vcapture v);
+int vcapture_stop(vcapture v);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif