/* GStreamer
*
* Copyright (C) 2001-2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
- * 2006 Edgard Lima <edgard.lima@indt.org.br>
+ * 2006 Edgard Lima <edgard.lima@gmail.com>
*
* gstv4l2object.h: base class for V4L2 elements
*
#define __GST_V4L2_OBJECT_H__
#include "ext/videodev2.h"
+#ifdef HAVE_LIBV4L2
+# include <libv4l2.h>
+#endif
+
+#include "v4l2-utils.h"
#include <gst/gst.h>
#include <gst/base/gstpushsrc.h>
#include <gst/video/video.h>
+#include <unistd.h>
typedef struct _GstV4l2Object GstV4l2Object;
typedef struct _GstV4l2ObjectClassHelper GstV4l2ObjectClassHelper;
-typedef struct _GstV4l2Xv GstV4l2Xv;
#include <gstv4l2bufferpool.h>
typedef gboolean (*GstV4l2SetInOutFunction) (GstV4l2Object * v4l2object, gint input);
typedef gboolean (*GstV4l2UpdateFpsFunction) (GstV4l2Object * v4l2object);
+/* On Android NDK r18b the ioctl() signature uses 'unsigned' instead of
+ * 'unsigned long' for the 2nd parameter */
+#ifdef __ANDROID__
+typedef unsigned ioctl_req_t;
+#else
+typedef gulong ioctl_req_t;
+#endif
+
#define GST_V4L2_WIDTH(o) (GST_VIDEO_INFO_WIDTH (&(o)->info))
#define GST_V4L2_HEIGHT(o) (GST_VIDEO_INFO_HEIGHT (&(o)->info))
#define GST_V4L2_PIXELFORMAT(o) ((o)->fmtdesc->pixelformat)
#define GST_V4L2_SET_ACTIVE(o) ((o)->active = TRUE)
#define GST_V4L2_SET_INACTIVE(o) ((o)->active = FALSE)
+/* checks whether the current v4lv4l2object has already been open()'ed or not */
+#define GST_V4L2_CHECK_OPEN(v4l2object) \
+ if (!GST_V4L2_IS_OPEN(v4l2object)) \
+ { \
+ GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, SETTINGS, \
+ (_("Device is not open.")), (NULL)); \
+ return FALSE; \
+ }
+
+/* checks whether the current v4lv4l2object is close()'ed or whether it is still open */
+#define GST_V4L2_CHECK_NOT_OPEN(v4l2object) \
+ if (GST_V4L2_IS_OPEN(v4l2object)) \
+ { \
+ GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, SETTINGS, \
+ (_("Device is open.")), (NULL)); \
+ return FALSE; \
+ }
+
+/* checks whether we're out of capture mode or not */
+#define GST_V4L2_CHECK_NOT_ACTIVE(v4l2object) \
+ if (GST_V4L2_IS_ACTIVE(v4l2object)) \
+ { \
+ GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, SETTINGS, \
+ (NULL), ("Device is in streaming mode")); \
+ return FALSE; \
+ }
+
+
struct _GstV4l2Object {
GstElement * element;
+ GstObject * dbg_obj;
enum v4l2_buf_type type; /* V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_BUF_TYPE_VIDEO_OUTPUT */
/* the video device */
char *videodev;
+#ifdef TIZEN_FEATURE_V4L2SRC_AUTO_SCAN_DEVICE_NODE
+ /* auto scan device */
+ gboolean auto_scan_device;
+#endif /* TIZEN_FEATURE_V4L2SRC_AUTO_SCAN_DEVICE_NODE */
+
/* the video-device's file descriptor */
gint video_fd;
GstV4l2IOMode mode;
gboolean prefered_non_contiguous;
/* This will be set if supported in decide_allocation. It can be used to
- * calculate the minimum latency of a m2m decoder. */
- guint32 min_buffers_for_capture;
+ * calculate the minimum latency. */
+ guint32 min_buffers;
/* wanted mode */
GstV4l2IOMode req_mode;
/* the video device's capabilities */
struct v4l2_capability vcap;
-
- /* the video device's window properties */
- struct v4l2_window vwin;
-
- /* some more info about the current input's capabilities */
- struct v4l2_input vinput;
+ /* opened device specific capabilities */
+ guint32 device_caps;
/* lists... */
GSList *formats; /* list of available capture formats */
gboolean keep_aspect;
GValue *par;
- /* X-overlay */
- GstV4l2Xv *xv;
- gulong xwindow_id;
-
/* funcs */
GstV4l2GetInOutFunction get_in_out_func;
GstV4l2SetInOutFunction set_in_out_func;
GstV4l2UpdateFpsFunction update_fps_func;
+ /* syscalls */
+ gint (*fd_open) (gint fd, gint v4l2_flags);
+ gint (*close) (gint fd);
+ gint (*dup) (gint fd);
+ gint (*ioctl) (gint fd, ioctl_req_t request, ...);
+ gssize (*read) (gint fd, gpointer buffer, gsize n);
+ gpointer (*mmap) (gpointer start, gsize length, gint prot, gint flags,
+ gint fd, off_t offset);
+ gint (*munmap) (gpointer _start, gsize length);
+
/* Quirks */
/* Skips interlacing probes */
gboolean never_interlaced;
/* Allow to skip reading initial format through G_FMT. Some devices
* just fails if you don't call S_FMT first. (ex: M2M decoders) */
gboolean no_initial_format;
+ /* Avoid any try_fmt probe. This is used by v4l2src to speedup start up time
+ * on slow USB firmwares. When this is set, gst_v4l2_set_format() will modify
+ * the caps to reflect what was negotiated during fixation */
+ gboolean skip_try_fmt_probes;
};
struct _GstV4l2ObjectClassHelper {
/* create/destroy */
GstV4l2Object* gst_v4l2_object_new (GstElement * element,
+ GstObject * dbg_obj,
enum v4l2_buf_type type,
const char * default_device,
GstV4l2GetInOutFunction get_in_out_func,
GstV4l2SetInOutFunction set_in_out_func,
GstV4l2UpdateFpsFunction update_fps_func);
-void gst_v4l2_object_destroy (GstV4l2Object * v4l2object);
+void gst_v4l2_object_destroy (GstV4l2Object * v4l2object);
/* properties */
guint prop_id, GValue * value,
GParamSpec * pspec);
/* open/close */
-gboolean gst_v4l2_object_open (GstV4l2Object *v4l2object);
-gboolean gst_v4l2_object_open_shared (GstV4l2Object *v4l2object, GstV4l2Object *other);
-gboolean gst_v4l2_object_close (GstV4l2Object *v4l2object);
+gboolean gst_v4l2_object_open (GstV4l2Object * v4l2object);
+gboolean gst_v4l2_object_open_shared (GstV4l2Object * v4l2object, GstV4l2Object * other);
+gboolean gst_v4l2_object_close (GstV4l2Object * v4l2object);
/* probing */
-#if 0
-const GList* gst_v4l2_probe_get_properties (GstPropertyProbe * probe);
-
-void gst_v4l2_probe_probe_property (GstPropertyProbe * probe, guint prop_id,
- const GParamSpec * pspec,
- GList ** klass_devices);
-gboolean gst_v4l2_probe_needs_probe (GstPropertyProbe * probe, guint prop_id,
- const GParamSpec * pspec,
- GList ** klass_devices);
-GValueArray* gst_v4l2_probe_get_values (GstPropertyProbe * probe, guint prop_id,
- const GParamSpec * pspec,
- GList ** klass_devices);
-#endif
-GstCaps* gst_v4l2_object_get_all_caps (void);
+GstCaps* gst_v4l2_object_get_all_caps (void);
-GstCaps* gst_v4l2_object_get_raw_caps (void);
+GstCaps* gst_v4l2_object_get_raw_caps (void);
-GstCaps* gst_v4l2_object_get_codec_caps (void);
+GstCaps* gst_v4l2_object_get_codec_caps (void);
-gboolean gst_v4l2_object_set_format (GstV4l2Object * v4l2object, GstCaps * caps);
+gint gst_v4l2_object_extrapolate_stride (const GstVideoFormatInfo * finfo,
+ gint plane, gint stride);
-gboolean gst_v4l2_object_caps_equal (GstV4l2Object * v4l2object, GstCaps * caps);
+gboolean gst_v4l2_object_set_format (GstV4l2Object * v4l2object, GstCaps * caps, GstV4l2Error * error);
+gboolean gst_v4l2_object_try_format (GstV4l2Object * v4l2object, GstCaps * caps, GstV4l2Error * error);
+gboolean gst_v4l2_object_try_import (GstV4l2Object * v4l2object, GstBuffer * buffer);
-gboolean gst_v4l2_object_unlock (GstV4l2Object * v4l2object);
-gboolean gst_v4l2_object_unlock_stop (GstV4l2Object * v4l2object);
+gboolean gst_v4l2_object_caps_equal (GstV4l2Object * v4l2object, GstCaps * caps);
+gboolean gst_v4l2_object_caps_is_subset (GstV4l2Object * v4l2object, GstCaps * caps);
+GstCaps * gst_v4l2_object_get_current_caps (GstV4l2Object * v4l2object);
-gboolean gst_v4l2_object_stop (GstV4l2Object * v4l2object);
+gboolean gst_v4l2_object_unlock (GstV4l2Object * v4l2object);
+gboolean gst_v4l2_object_unlock_stop (GstV4l2Object * v4l2object);
-GstCaps * gst_v4l2_object_get_caps (GstV4l2Object * v4l2object,
- GstCaps * filter);
+gboolean gst_v4l2_object_stop (GstV4l2Object * v4l2object);
-gboolean gst_v4l2_object_acquire_format (GstV4l2Object * v4l2object,
- GstVideoInfo * info);
+GstCaps * gst_v4l2_object_probe_caps (GstV4l2Object * v4l2object, GstCaps * filter);
+GstCaps * gst_v4l2_object_get_caps (GstV4l2Object * v4l2object, GstCaps * filter);
-gboolean gst_v4l2_object_set_crop (GstV4l2Object * obj);
+gboolean gst_v4l2_object_acquire_format (GstV4l2Object * v4l2object, GstVideoInfo * info);
-gboolean gst_v4l2_object_decide_allocation (GstV4l2Object * v4l2object,
- GstQuery * query);
+gboolean gst_v4l2_object_set_crop (GstV4l2Object * obj);
-gboolean gst_v4l2_object_propose_allocation (GstV4l2Object * obj,
- GstQuery * query);
+gboolean gst_v4l2_object_decide_allocation (GstV4l2Object * v4l2object, GstQuery * query);
-GstStructure * gst_v4l2_object_v4l2fourcc_to_structure (guint32 fourcc);
+gboolean gst_v4l2_object_propose_allocation (GstV4l2Object * obj, GstQuery * query);
+GstStructure * gst_v4l2_object_v4l2fourcc_to_structure (guint32 fourcc);
-#define GST_IMPLEMENT_V4L2_PROBE_METHODS(Type_Class, interface_as_function) \
- \
-static void \
-interface_as_function ## _probe_probe_property (GstPropertyProbe * probe, \
- guint prop_id, \
- const GParamSpec * pspec) \
-{ \
- Type_Class *this_class = (Type_Class*) G_OBJECT_GET_CLASS (probe); \
- gst_v4l2_probe_probe_property (probe, prop_id, pspec, \
- &this_class->v4l2_class_devices); \
-} \
- \
-static gboolean \
-interface_as_function ## _probe_needs_probe (GstPropertyProbe * probe, \
- guint prop_id, \
- const GParamSpec * pspec) \
-{ \
- Type_Class *this_class = (Type_Class*) G_OBJECT_GET_CLASS (probe); \
- return gst_v4l2_probe_needs_probe (probe, prop_id, pspec, \
- &this_class->v4l2_class_devices); \
-} \
- \
-static GValueArray * \
-interface_as_function ## _probe_get_values (GstPropertyProbe * probe, \
- guint prop_id, \
- const GParamSpec * pspec) \
-{ \
- Type_Class *this_class = (Type_Class*) G_OBJECT_GET_CLASS (probe); \
- return gst_v4l2_probe_get_values (probe, prop_id, pspec, \
- &this_class->v4l2_class_devices); \
-} \
- \
-static void \
-interface_as_function ## _property_probe_interface_init (GstPropertyProbeInterface * iface) \
-{ \
- iface->get_properties = gst_v4l2_probe_get_properties; \
- iface->probe_property = interface_as_function ## _probe_probe_property; \
- iface->needs_probe = interface_as_function ## _probe_needs_probe; \
- iface->get_values = interface_as_function ## _probe_get_values; \
-}
+/* TODO Move to proper namespace */
+/* open/close the device */
+gboolean gst_v4l2_open (GstV4l2Object * v4l2object);
+gboolean gst_v4l2_dup (GstV4l2Object * v4l2object, GstV4l2Object * other);
+gboolean gst_v4l2_close (GstV4l2Object * v4l2object);
+
+/* norm/input/output */
+gboolean gst_v4l2_get_norm (GstV4l2Object * v4l2object, v4l2_std_id * norm);
+gboolean gst_v4l2_set_norm (GstV4l2Object * v4l2object, v4l2_std_id norm);
+gboolean gst_v4l2_get_input (GstV4l2Object * v4l2object, gint * input);
+gboolean gst_v4l2_set_input (GstV4l2Object * v4l2object, gint input);
+gboolean gst_v4l2_get_output (GstV4l2Object * v4l2object, gint * output);
+gboolean gst_v4l2_set_output (GstV4l2Object * v4l2object, gint output);
+
+/* frequency control */
+gboolean gst_v4l2_get_frequency (GstV4l2Object * v4l2object, gint tunernum, gulong * frequency);
+gboolean gst_v4l2_set_frequency (GstV4l2Object * v4l2object, gint tunernum, gulong frequency);
+gboolean gst_v4l2_signal_strength (GstV4l2Object * v4l2object, gint tunernum, gulong * signal);
+
+/* attribute control */
+gboolean gst_v4l2_get_attribute (GstV4l2Object * v4l2object, int attribute, int * value);
+gboolean gst_v4l2_set_attribute (GstV4l2Object * v4l2object, int attribute, const int value);
+gboolean gst_v4l2_set_controls (GstV4l2Object * v4l2object, GstStructure * controls);
G_END_DECLS
projects / platform / upstream / gst-plugins-good.git / blobdiff