/* 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
*
#ifndef __GST_V4L2_OBJECT_H__
#define __GST_V4L2_OBJECT_H__
-/* Because of some really cool feature in video4linux1, also known as
- * 'not including sys/types.h and sys/time.h', we had to include it
- * ourselves. In all their intelligence, these people decided to fix
- * this in the next version (video4linux2) in such a cool way that it
- * breaks all compilations of old stuff...
- * The real problem is actually that linux/time.h doesn't use proper
- * macro checks before defining types like struct timeval. The proper
- * fix here is to either fuck the kernel header (which is what we do
- * by defining _LINUX_TIME_H, an innocent little hack) or by fixing it
- * upstream, which I'll consider doing later on. If you get compiler
- * errors here, check your linux/time.h && sys/time.h header setup.
- */
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#ifdef __sun
-#include <sys/videodev2.h>
-#elif defined(__FreeBSD__)
-#include <linux/videodev2.h>
-#else /* linux */
-#include <linux/types.h>
-#define _LINUX_TIME_H
-#define __user
-#include <linux/videodev2.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>
/* size of v4l2 buffer pool in streaming case */
-#define GST_V4L2_MAX_BUFFERS 16
-#define GST_V4L2_MIN_BUFFERS 1
+#define GST_V4L2_MIN_BUFFERS 2
/* max frame width/height */
#define GST_V4L2_MAX_SIZE (1<<15) /* 2^15 == 32768 */
G_BEGIN_DECLS
+#define GST_TYPE_V4L2_IO_MODE (gst_v4l2_io_mode_get_type ())
+GType gst_v4l2_io_mode_get_type (void);
+
#define GST_V4L2_OBJECT(obj) (GstV4l2Object *)(obj)
typedef enum {
- GST_V4L2_IO_AUTO = 0,
- GST_V4L2_IO_RW = 1,
- GST_V4L2_IO_MMAP = 2,
- GST_V4L2_IO_USERPTR = 3,
- GST_V4L2_IO_DMABUF = 4
+ GST_V4L2_IO_AUTO = 0,
+ GST_V4L2_IO_RW = 1,
+ GST_V4L2_IO_MMAP = 2,
+ GST_V4L2_IO_USERPTR = 3,
+ GST_V4L2_IO_DMABUF = 4,
+ GST_V4L2_IO_DMABUF_IMPORT = 5
} GstV4l2IOMode;
typedef gboolean (*GstV4l2GetInOutFunction) (GstV4l2Object * v4l2object, gint * input);
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;
- GstPoll * poll;
- gboolean can_poll_device;
gboolean active;
gboolean streaming;
/* the current format */
struct v4l2_fmtdesc *fmtdesc;
+ struct v4l2_format format;
GstVideoInfo info;
+ GstVideoAlignment align;
+
+ /* Features */
+ gboolean need_video_meta;
+ gboolean has_alpha_component;
- guint32 bytesperline;
- guint32 sizeimage;
+ /* only used if the device supports MPLANE
+ * nb planes is meaning of v4l2 planes
+ * the gstreamer equivalent is gst_buffer_n_memory
+ */
+ gint n_v4l2_planes;
+
+ /* We cache the frame duration if known */
GstClockTime duration;
+ /* if the MPLANE device support both contiguous and non contiguous
+ * it allows to select which one we want. But we prefered_non_contiguous
+ * non contiguous mode.
+ */
+ gboolean prefered_non_contiguous;
+
+ /* This will be set if supported in decide_allocation. It can be used to
+ * 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 */
+ GstCaps *probed_caps;
GList *colors;
GList *norms;
gchar *channel;
gulong frequency;
GstStructure *extra_controls;
-
- /* X-overlay */
- GstV4l2Xv *xv;
- gulong xwindow_id;
+ gboolean keep_aspect;
+ GValue *par;
/* 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 {
GType gst_v4l2_object_get_type (void);
-#define V4L2_STD_OBJECT_PROPS \
- PROP_DEVICE, \
- PROP_DEVICE_NAME, \
- PROP_DEVICE_FD, \
- PROP_FLAGS, \
- PROP_BRIGHTNESS, \
- PROP_CONTRAST, \
- PROP_SATURATION, \
- PROP_HUE, \
- PROP_TV_NORM, \
- PROP_IO_MODE, \
- PROP_EXTRA_CONTROLS
+#define V4L2_STD_OBJECT_PROPS \
+ PROP_DEVICE, \
+ PROP_DEVICE_NAME, \
+ PROP_DEVICE_FD, \
+ PROP_FLAGS, \
+ PROP_BRIGHTNESS, \
+ PROP_CONTRAST, \
+ PROP_SATURATION, \
+ PROP_HUE, \
+ PROP_TV_NORM, \
+ PROP_IO_MODE, \
+ PROP_OUTPUT_IO_MODE, \
+ PROP_CAPTURE_IO_MODE, \
+ PROP_EXTRA_CONTROLS, \
+ PROP_PIXEL_ASPECT_RATIO, \
+ PROP_FORCE_ASPECT_RATIO
/* create/destroy */
-GstV4l2Object * gst_v4l2_object_new (GstElement * element,
- 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);
+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);
/* properties */
-void gst_v4l2_object_install_properties_helper (GObjectClass *gobject_class, const char *default_device);
+void gst_v4l2_object_install_properties_helper (GObjectClass * gobject_class,
+ const char * default_device);
+
+void gst_v4l2_object_install_m2m_properties_helper (GObjectClass * gobject_class);
-gboolean gst_v4l2_object_set_property_helper (GstV4l2Object *v4l2object,
- guint prop_id, const GValue * value,
- GParamSpec * pspec);
-gboolean gst_v4l2_object_get_property_helper (GstV4l2Object *v4l2object,
- guint prop_id, GValue * value,
- GParamSpec * pspec);
+gboolean gst_v4l2_object_set_property_helper (GstV4l2Object * v4l2object,
+ guint prop_id,
+ const GValue * value,
+ GParamSpec * pspec);
+gboolean gst_v4l2_object_get_property_helper (GstV4l2Object *v4l2object,
+ guint prop_id, GValue * value,
+ GParamSpec * pspec);
/* open/close */
-gboolean gst_v4l2_object_open (GstV4l2Object *v4l2object);
-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_probe_caps_for_format (GstV4l2Object *v4l2object, guint32 pixelformat,
- const GstStructure * template);
-
-GSList* gst_v4l2_object_get_format_list (GstV4l2Object *v4l2object);
-
-GstCaps* gst_v4l2_object_get_all_caps (void);
-
-GstStructure* gst_v4l2_object_v4l2fourcc_to_structure (guint32 fourcc);
-
-gboolean gst_v4l2_object_set_format (GstV4l2Object *v4l2object, GstCaps * caps);
-
-gboolean gst_v4l2_object_caps_equal (GstV4l2Object * v4l2object, GstCaps * caps);
-
-gboolean gst_v4l2_object_unlock (GstV4l2Object *v4l2object);
-gboolean gst_v4l2_object_unlock_stop (GstV4l2Object *v4l2object);
-
-gboolean gst_v4l2_object_stop (GstV4l2Object *v4l2object);
-
-
-gboolean gst_v4l2_object_copy (GstV4l2Object * v4l2object,
- GstBuffer * dest, GstBuffer *src);
-
-
-#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; \
-}
+GstCaps* gst_v4l2_object_get_all_caps (void);
+
+GstCaps* gst_v4l2_object_get_raw_caps (void);
+
+GstCaps* gst_v4l2_object_get_codec_caps (void);
+
+gint gst_v4l2_object_extrapolate_stride (const GstVideoFormatInfo * finfo,
+ gint plane, gint stride);
+
+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_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_unlock (GstV4l2Object * v4l2object);
+gboolean gst_v4l2_object_unlock_stop (GstV4l2Object * v4l2object);
+
+gboolean gst_v4l2_object_stop (GstV4l2Object * v4l2object);
+
+GstCaps * gst_v4l2_object_probe_caps (GstV4l2Object * v4l2object, GstCaps * filter);
+GstCaps * gst_v4l2_object_get_caps (GstV4l2Object * v4l2object, GstCaps * filter);
+
+gboolean gst_v4l2_object_acquire_format (GstV4l2Object * v4l2object, GstVideoInfo * info);
+
+gboolean gst_v4l2_object_set_crop (GstV4l2Object * obj);
+
+gboolean gst_v4l2_object_decide_allocation (GstV4l2Object * v4l2object, GstQuery * query);
+
+gboolean gst_v4l2_object_propose_allocation (GstV4l2Object * obj, GstQuery * query);
+
+GstStructure * gst_v4l2_object_v4l2fourcc_to_structure (guint32 fourcc);
+
+/* 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
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