*/
/**
- * SECTION:element-dc1394
+ * SECTION:element-dc1394src
*
* Source for IIDC (Instrumentation & Industrial Digital Camera) firewire
- * cameras.
- *
+ * cameras. If several cameras are connected to the system, the desired one
+ * can be selected by its GUID and an optional unit number (most cameras are
+ * single unit and do not require it). The frame size, rate and format are set
+ * from capabilities. Although the IIDC specification includes a raw video
+ * mode, many cameras use mono video modes to capture in Bayer format.
+ * Thus, for each mono video mode supported by a camera, both gray raw and Bayer
+ * corresponding video formats are exposed in the capabilities.
+ * The Bayer pattern is left unspecified.
+ *
* <refsect2>
- * <title>Example launch line</title>
+ * <title>Example launch lines</title>
+ * |[
+ * gst-launch-1.0 -v dc1394src ! videoconvert ! autovideosink
+ * ]| Capture and display frames from the first camera available in the system.
* |[
- * gst-launch -v dc1394 camera-number=0 ! xvimagesink
- * ]|
+ * gst-launch-1.0 dc1394src guid=00074813004DF937 \
+ * ! "video/x-bayer,format=gbrg,width=1280,height=960,framerate=15/2" \
+ * ! bayer2rgb ! videoconvert ! autovideosink
+ * ]| Capture and display frames from a specific camera in the desired format.
* </refsect2>
*/
#include "config.h"
#endif
#include "gstdc1394.h"
-#include <sys/time.h>
-#include <time.h>
-#include <string.h>
+#include <gst/video/video.h>
-GST_DEBUG_CATEGORY (dc1394_debug);
+GST_DEBUG_CATEGORY_STATIC (dc1394_debug);
#define GST_CAT_DEFAULT dc1394_debug
+
enum
{
PROP_0,
- PROP_TIMESTAMP_OFFSET,
- PROP_CAMNUM,
- PROP_BUFSIZE,
- PROP_ISO_SPEED
- /* FILL ME */
+ PROP_CAMERA_GUID,
+ PROP_CAMERA_UNIT,
+ PROP_ISO_SPEED,
+ PROP_DMA_BUFFER_SIZE
};
-GST_BOILERPLATE (GstDc1394, gst_dc1394, GstPushSrc, GST_TYPE_PUSH_SRC);
+#define GST_TYPE_DC1394_ISO_SPEED (gst_dc1394_iso_speed_get_type ())
+static GType
+gst_dc1394_iso_speed_get_type (void)
+{
+ static const GEnumValue iso_speeds[] = {
+ {100, "DC1394 ISO speed 100", "100"},
+ {200, "DC1394 ISO speed 200", "200"},
+ {400, "DC1394 ISO speed 400", "400"},
+ {800, "DC1394 ISO speed 800", "800"},
+ {1600, "DC1394 ISO speed 1600", "1600"},
+ {3200, "DC1394 ISO speed 3200", "3200"},
+ {0, NULL, NULL}
+ };
+ static GType type = 0;
+
+ if (!type) {
+ type = g_enum_register_static ("GstDC1394ISOSpeed", iso_speeds);
+ }
+ return type;
+}
+
+
+#define gst_dc1394_parent_class parent_class
+G_DEFINE_TYPE (GstDc1394, gst_dc1394, GST_TYPE_PUSH_SRC);
static void gst_dc1394_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_dc1394_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
-
-static GstCaps *gst_dc1394_getcaps (GstBaseSrc * bsrc);
-static gboolean gst_dc1394_setcaps (GstBaseSrc * bsrc, GstCaps * caps);
-static void gst_dc1394_src_fixate (GstPad * pad, GstCaps * caps);
-
-static void gst_dc1394_get_times (GstBaseSrc * basesrc,
- GstBuffer * buffer, GstClockTime * start, GstClockTime * end);
-
+static gboolean gst_dc1394_start (GstBaseSrc * bsrc);
+static gboolean gst_dc1394_stop (GstBaseSrc * bsrc);
+static gboolean gst_dc1394_set_caps (GstBaseSrc * bsrc, GstCaps * caps);
+static GstCaps *gst_dc1394_get_caps (GstBaseSrc * bsrc, GstCaps * filter);
static GstFlowReturn gst_dc1394_create (GstPushSrc * psrc, GstBuffer ** buffer);
-static GstStateChangeReturn
-gst_dc1394_change_state (GstElement * element, GstStateChange transition);
-
-static gboolean gst_dc1394_parse_caps (const GstCaps * caps,
- gint * width,
- gint * height,
- gint * rate_numerator, gint * rate_denominator, gint * vmode, gint * bpp);
-
-static gint gst_dc1394_caps_set_format_vmode_caps (GstStructure * st,
- gint mode);
-static gboolean gst_dc1394_set_caps_color (GstStructure * gs, gint mc);
-static void gst_dc1394_set_caps_framesize (GstStructure * gs, gint width,
- gint height);
-static void gst_dc1394_set_caps_framesize_range (GstStructure * gs,
- gint minwidth, gint maxwidth, gint incwidth,
- gint minheight, gint maxheight, gint incheight);
-
-static gint gst_dc1394_caps_set_framerate_list (GstStructure * gs,
- dc1394framerates_t * framerates);
-
-static GstCaps *gst_dc1394_get_all_dc1394_caps (void);
+static void gst_dc1394_set_prop_camera_guid (GstDc1394 * src,
+ const gchar * guid);
+static gchar *gst_dc1394_get_prop_camera_guid (GstDc1394 * src);
+static void gst_dc1394_set_prop_camera_unit (GstDc1394 * src, gint unit);
+static gint gst_dc1394_get_prop_camera_unit (GstDc1394 * src);
+static void gst_dc1394_set_prop_iso_speed (GstDc1394 * src, guint speed);
+static guint gst_dc1394_get_prop_iso_speed (GstDc1394 * src);
+static void gst_dc1394_set_prop_dma_buffer_size (GstDc1394 * src, guint size);
+static guint gst_dc1394_get_prop_dma_buffer_size (GstDc1394 * src);
+static gboolean gst_dc1394_open_cam (GstDc1394 * src);
+static void gst_dc1394_close_cam (GstDc1394 * src);
+static gboolean gst_dc1394_start_cam (GstDc1394 * src);
+static gboolean gst_dc1394_stop_cam (GstDc1394 * src);
+static gboolean gst_dc1394_set_cam_caps (GstDc1394 * src, GstCaps * caps);
static GstCaps *gst_dc1394_get_cam_caps (GstDc1394 * src);
-static gboolean gst_dc1394_open_cam_with_best_caps (GstDc1394 * src);
-static gint gst_dc1394_framerate_frac_to_const (gint num, gint denom);
-static void gst_dc1394_framerate_const_to_frac (gint framerateconst,
- GValue * framefrac);
-static gboolean
-gst_dc1394_change_camera_transmission (GstDc1394 * src, gboolean on);
-static gboolean gst_dc1394_query (GstBaseSrc * bsrc, GstQuery * query);
-
-static void
-gst_dc1394_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_set_static_metadata (element_class,
- "1394 IIDC Video Source", "Source/Video",
- "libdc1394 based source, supports 1394 IIDC cameras",
- "Antoine Tremblay <hexa00@gmail.com>");
+static GstCaps *gst_dc1394_get_all_caps (void);
- gst_element_class_add_pad_template (element_class,
- gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
- gst_dc1394_get_all_dc1394_caps ()));
-
-}
+static GstCaps *gst_dc1394_build_caps (const dc1394color_codings_t *
+ supported_codings, const dc1394framerates_t * supported_rates,
+ guint width_min, guint width_max, guint width_step, guint height_min,
+ guint height_max, guint height_step);
+static gboolean gst_dc1394_parse_caps (const GstCaps * caps,
+ dc1394color_codings_t * color_codings, dc1394framerate_t * rate,
+ gdouble * rate_decimal, guint * width, guint * height);
static void
gst_dc1394_class_init (GstDc1394Class * klass)
{
GObjectClass *gobject_class;
- GstBaseSrcClass *gstbasesrc_class;
- GstPushSrcClass *gstpushsrc_class;
- GstElementClass *gstelement_class;
+ GstElementClass *element_class;
+ GstBaseSrcClass *basesrc_class;
+ GstPushSrcClass *pushsrc_class;
- gobject_class = (GObjectClass *) klass;
- gstbasesrc_class = (GstBaseSrcClass *) klass;
- gstpushsrc_class = (GstPushSrcClass *) klass;
- gstelement_class = (GstElementClass *) klass;
+ gobject_class = G_OBJECT_CLASS (klass);
+ element_class = GST_ELEMENT_CLASS (klass);
+ basesrc_class = GST_BASE_SRC_CLASS (klass);
+ pushsrc_class = GST_PUSH_SRC_CLASS (klass);
gobject_class->set_property = gst_dc1394_set_property;
gobject_class->get_property = gst_dc1394_get_property;
+ g_object_class_install_property (gobject_class, PROP_CAMERA_GUID,
+ g_param_spec_string ("guid", "Camera GUID",
+ "The hexadecimal representation of the GUID of the camera"
+ " (use first camera available if null)",
+ NULL,
+ G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE |
+ GST_PARAM_MUTABLE_READY));
+ g_object_class_install_property (gobject_class, PROP_CAMERA_UNIT,
+ g_param_spec_int ("unit", "Camera unit",
+ "The unit number of the camera (-1 if no unit number is used)",
+ -1, G_MAXINT, -1,
+ G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE |
+ GST_PARAM_MUTABLE_READY));
+ g_object_class_install_property (gobject_class, PROP_ISO_SPEED,
+ g_param_spec_enum ("iso", "ISO bandwidth",
+ "The ISO bandwidth in Mbps",
+ GST_TYPE_DC1394_ISO_SPEED, 400,
+ G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE |
+ GST_PARAM_MUTABLE_READY));
+ g_object_class_install_property (gobject_class, PROP_DMA_BUFFER_SIZE,
+ g_param_spec_uint ("dma", "DMA ring buffer size",
+ "The number of frames in the Direct Memory Access ring buffer",
+ 1, G_MAXUINT, 10,
+ G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE |
+ GST_PARAM_MUTABLE_READY));
- g_object_class_install_property (G_OBJECT_CLASS (klass),
- PROP_TIMESTAMP_OFFSET, g_param_spec_int64 ("timestamp-offset",
- "Timestamp offset",
- "An offset added to timestamps set on buffers (in ns)", G_MININT64,
- G_MAXINT64, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (G_OBJECT_CLASS (klass),
- PROP_CAMNUM, g_param_spec_int ("camera-number",
- "The number of the camera on the firewire bus",
- "The number of the camera on the firewire bus", 0,
- G_MAXINT, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (G_OBJECT_CLASS (klass),
- PROP_BUFSIZE, g_param_spec_int ("buffer-size",
- "The number of frames in the dma ringbuffer",
- "The number of frames in the dma ringbuffer", 1,
- G_MAXINT, 10, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- g_object_class_install_property (G_OBJECT_CLASS (klass),
- PROP_ISO_SPEED, g_param_spec_int ("iso-speed",
- "The iso bandwidth in Mbps (100, 200, 400, 800, 1600, 3200)",
- "The iso bandwidth in Mbps (100, 200, 400, 800, 1600, 3200)", 100,
- 3200, 400, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- gstbasesrc_class->get_caps = gst_dc1394_getcaps;
- gstbasesrc_class->set_caps = gst_dc1394_setcaps;
- gstbasesrc_class->query = gst_dc1394_query;
-
- gstbasesrc_class->get_times = gst_dc1394_get_times;
- gstpushsrc_class->create = gst_dc1394_create;
-
- gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_dc1394_change_state);
-}
-
-static void
-gst_dc1394_init (GstDc1394 * src, GstDc1394Class * g_class)
-{
-
- src->segment_start_frame = -1;
- src->segment_end_frame = -1;
- src->timestamp_offset = 0;
- src->caps = gst_dc1394_get_all_dc1394_caps ();
- src->bufsize = 10;
- src->iso_speed = 400;
- src->camnum = 0;
- src->n_frames = 0;
+ gst_element_class_set_static_metadata (element_class,
+ "1394 IIDC Video Source", "Source/Video",
+ "libdc1394 based source for IIDC cameras",
+ "Antoine Tremblay <hexa00@gmail.com>");
+ gst_element_class_add_pad_template (element_class,
+ gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
+ gst_dc1394_get_all_caps ()));
- gst_pad_set_fixatecaps_function (GST_BASE_SRC_PAD (src),
- gst_dc1394_src_fixate);
+ basesrc_class->start = GST_DEBUG_FUNCPTR (gst_dc1394_start);
+ basesrc_class->stop = GST_DEBUG_FUNCPTR (gst_dc1394_stop);
+ basesrc_class->set_caps = GST_DEBUG_FUNCPTR (gst_dc1394_set_caps);
+ basesrc_class->get_caps = GST_DEBUG_FUNCPTR (gst_dc1394_get_caps);
- gst_base_src_set_live (GST_BASE_SRC (src), TRUE);
+ pushsrc_class->create = GST_DEBUG_FUNCPTR (gst_dc1394_create);
}
+
static void
-gst_dc1394_src_fixate (GstPad * pad, GstCaps * caps)
+gst_dc1394_init (GstDc1394 * src)
{
+ src->guid = -1;
+ src->unit = -1;
+ src->iso_speed = DC1394_ISO_SPEED_400;
+ src->dma_buffer_size = 10;
+ src->dc1394 = NULL;
+ src->camera = NULL;
+ src->caps = NULL;
- GstDc1394 *src = GST_DC1394 (gst_pad_get_parent (pad));
- GstStructure *structure;
- int i;
-
- GST_LOG_OBJECT (src, " fixating caps to closest to 320x240 , 30 fps");
-
- for (i = 0; i < gst_caps_get_size (caps); ++i) {
- structure = gst_caps_get_structure (caps, i);
-
- gst_structure_fixate_field_nearest_int (structure, "width", 320);
- gst_structure_fixate_field_nearest_int (structure, "height", 240);
- gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1);
- }
- gst_object_unref (GST_OBJECT (src));
+ gst_base_src_set_live (GST_BASE_SRC (src), TRUE);
+ gst_base_src_set_format (GST_BASE_SRC (src), GST_FORMAT_TIME);
+ gst_base_src_set_do_timestamp (GST_BASE_SRC (src), TRUE);
}
-static gboolean
-gst_dc1394_query (GstBaseSrc * bsrc, GstQuery * query)
-{
- gboolean res = TRUE;
- GstDc1394 *src = GST_DC1394 (bsrc);
-
- switch (GST_QUERY_TYPE (query)) {
- case GST_QUERY_LATENCY:
- {
- GstClockTime min_latency, max_latency;
-
- if (!src->camera) {
- GST_WARNING_OBJECT (src,
- "Can't give latency since device isn't open !");
- res = FALSE;
- goto done;
- }
-
- if (src->rate_denominator <= 0 || src->rate_numerator <= 0) {
- GST_WARNING_OBJECT (bsrc,
- "Can't give latency since framerate isn't fixated !");
- res = FALSE;
- goto done;
- }
-
- /* min latency is the time to capture one frame */
- min_latency = gst_util_uint64_scale (GST_SECOND,
- src->rate_denominator, src->rate_numerator);
-
- /* max latency is total duration of the frame buffer */
- max_latency = gst_util_uint64_scale (src->bufsize,
- GST_SECOND * src->rate_denominator, src->rate_numerator);
-
- GST_DEBUG_OBJECT (bsrc,
- "report latency min %" GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
- GST_TIME_ARGS (min_latency), GST_TIME_ARGS (max_latency));
-
- /* we are always live, the min latency is 1 frame and the max latency is
- * the complete buffer of frames. */
- gst_query_set_latency (query, TRUE, min_latency, max_latency);
-
- res = TRUE;
- break;
- }
- default:
- res = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query);
- break;
- }
-
-done:
- return res;
-}
static void
-gst_dc1394_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
+gst_dc1394_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
{
- GstDc1394 *src = GST_DC1394 (object);
+ GstDc1394 *src;
+ src = GST_DC1394 (object);
switch (prop_id) {
- case PROP_TIMESTAMP_OFFSET:
- src->timestamp_offset = g_value_get_int64 (value);
+ case PROP_CAMERA_GUID:
+ g_value_take_string (value, gst_dc1394_get_prop_camera_guid (src));
break;
- case PROP_CAMNUM:
- src->camnum = g_value_get_int (value);
- break;
- case PROP_BUFSIZE:
- src->bufsize = g_value_get_int (value);
+ case PROP_CAMERA_UNIT:
+ g_value_set_int (value, gst_dc1394_get_prop_camera_unit (src));
break;
case PROP_ISO_SPEED:
- switch (g_value_get_int (value)) {
- case 100:
- case 200:
- case 300:
- case 400:
- case 800:
- case 1600:
- case 3200:
- // fallthrough
- src->iso_speed = g_value_get_int (value);
- break;
- default:
- g_warning ("%s: Invalid iso speed %d, ignoring",
- GST_ELEMENT_NAME (src), g_value_get_int (value));
- break;
- }
+ g_value_set_enum (value, gst_dc1394_get_prop_iso_speed (src));
+ break;
+ case PROP_DMA_BUFFER_SIZE:
+ g_value_set_uint (value, gst_dc1394_get_prop_dma_buffer_size (src));
+ break;
default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
+
static void
-gst_dc1394_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
+gst_dc1394_set_property (GObject * object,
+ guint prop_id, const GValue * value, GParamSpec * pspec)
{
- GstDc1394 *src = GST_DC1394 (object);
+ GstDc1394 *src;
+ src = GST_DC1394 (object);
switch (prop_id) {
- case PROP_TIMESTAMP_OFFSET:
- g_value_set_int64 (value, src->timestamp_offset);
+ case PROP_CAMERA_GUID:
+ gst_dc1394_set_prop_camera_guid (src, g_value_get_string (value));
break;
- case PROP_CAMNUM:
- g_value_set_int (value, src->camnum);
- break;
- case PROP_BUFSIZE:
- g_value_set_int (value, src->bufsize);
+ case PROP_CAMERA_UNIT:
+ gst_dc1394_set_prop_camera_unit (src, g_value_get_int (value));
break;
case PROP_ISO_SPEED:
- g_value_set_int (value, src->iso_speed);
+ gst_dc1394_set_prop_iso_speed (src, g_value_get_enum (value));
+ break;
+ case PROP_DMA_BUFFER_SIZE:
+ gst_dc1394_set_prop_dma_buffer_size (src, g_value_get_uint (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
-static GstCaps *
-gst_dc1394_getcaps (GstBaseSrc * bsrc)
-{
- GstDc1394 *gsrc;
-
- gsrc = GST_DC1394 (bsrc);
- g_return_val_if_fail (gsrc->caps, NULL);
+static gboolean
+gst_dc1394_start (GstBaseSrc * bsrc)
+{
+ GstDc1394 *src;
- return gst_caps_copy (gsrc->caps);
+ src = GST_DC1394 (bsrc);
+ return gst_dc1394_open_cam (src);
}
+
static gboolean
-gst_dc1394_setcaps (GstBaseSrc * bsrc, GstCaps * caps)
+gst_dc1394_stop (GstBaseSrc * bsrc)
{
- gboolean res = TRUE;
- GstDc1394 *dc1394;
- gint width, height, rate_denominator, rate_numerator;
- gint bpp, vmode;
-
- dc1394 = GST_DC1394 (bsrc);
+ GstDc1394 *src;
- if (dc1394->caps) {
- gst_caps_unref (dc1394->caps);
- }
+ src = GST_DC1394 (bsrc);
+ if (!gst_dc1394_stop_cam (src))
+ return FALSE;
+ gst_dc1394_close_cam (src);
+ return TRUE;
+}
- dc1394->caps = gst_caps_copy (caps);
- res = gst_dc1394_parse_caps (caps, &width, &height,
- &rate_numerator, &rate_denominator, &vmode, &bpp);
+static GstCaps *
+gst_dc1394_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
+{
+ GstDc1394 *src;
+ GstCaps *caps, *ret;
- if (res) {
- /* looks ok here */
- dc1394->width = width;
- dc1394->height = height;
- dc1394->vmode = vmode;
- dc1394->rate_numerator = rate_numerator;
- dc1394->rate_denominator = rate_denominator;
- dc1394->bpp = bpp;
+ src = GST_DC1394 (bsrc);
+ if (src->camera) {
+ caps = gst_dc1394_get_cam_caps (src);
+ } else {
+ caps = gst_dc1394_get_all_caps ();
}
-
- return res;
+ if (caps && filter) {
+ ret = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
+ gst_caps_unref (caps);
+ } else {
+ ret = caps;
+ }
+ return ret;
}
-static void
-gst_dc1394_get_times (GstBaseSrc * basesrc, GstBuffer * buffer,
- GstClockTime * start, GstClockTime * end)
-{
- /* for live sources, sync on the timestamp of the buffer */
- if (gst_base_src_is_live (basesrc)) {
- GstClockTime timestamp = GST_BUFFER_TIMESTAMP (buffer);
- if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
- /* get duration to calculate end time */
- GstClockTime duration = GST_BUFFER_DURATION (buffer);
+static gboolean
+gst_dc1394_set_caps (GstBaseSrc * bsrc, GstCaps * caps)
+{
+ GstDc1394 *src;
- if (GST_CLOCK_TIME_IS_VALID (duration)) {
- *end = timestamp + duration;
- }
- *start = timestamp;
- }
- } else {
- *start = -1;
- *end = -1;
- }
+ src = GST_DC1394 (bsrc);
+ return gst_dc1394_stop_cam (src)
+ && gst_dc1394_set_cam_caps (src, caps)
+ && gst_dc1394_start_cam (src);
}
+
static GstFlowReturn
-gst_dc1394_create (GstPushSrc * psrc, GstBuffer ** buffer)
+gst_dc1394_create (GstPushSrc * psrc, GstBuffer ** obuf)
{
GstDc1394 *src;
- GstBuffer *outbuf;
- GstCaps *caps;
- dc1394video_frame_t *frame[1];
- GstFlowReturn res = GST_FLOW_OK;
- dc1394error_t err;
+ GstBuffer *buffer;
+ dc1394video_frame_t *frame;
+ dc1394error_t ret;
src = GST_DC1394 (psrc);
-
- err = dc1394_capture_dequeue (src->camera, DC1394_CAPTURE_POLICY_WAIT, frame);
-
- if (err != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
- ("failed to dequeue frame"), ("failed to dequeue frame"));
+ buffer = NULL;
+ ret = dc1394_capture_dequeue (src->camera, DC1394_CAPTURE_POLICY_WAIT,
+ &frame);
+ if (ret != DC1394_SUCCESS) {
+ GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
+ ("Could not dequeue frame: %s.", dc1394_error_get_string (ret)));
goto error;
}
-
- outbuf = gst_buffer_new_and_alloc (frame[0]->image_bytes);
-
- memcpy (GST_BUFFER_MALLOCDATA (outbuf), (guchar *) frame[0]->image,
- frame[0]->image_bytes * sizeof (guchar));
-
- GST_BUFFER_DATA (outbuf) = GST_BUFFER_MALLOCDATA (outbuf);
-
- caps = gst_pad_get_caps (GST_BASE_SRC_PAD (psrc));
- gst_buffer_set_caps (outbuf, caps);
- gst_caps_unref (caps);
-
- GST_BUFFER_TIMESTAMP (outbuf) = src->timestamp_offset + src->running_time;
- if (src->rate_numerator != 0) {
- GST_BUFFER_DURATION (outbuf) = gst_util_uint64_scale_int (GST_SECOND,
- src->rate_denominator, src->rate_numerator);
- }
-
- src->n_frames++;
- if (src->rate_numerator != 0) {
- src->running_time = gst_util_uint64_scale_int (src->n_frames * GST_SECOND,
- src->rate_denominator, src->rate_numerator);
- }
-
- if (dc1394_capture_enqueue (src->camera, frame[0]) != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("failed to enqueue frame"),
- ("failed to enqueue frame"));
- goto error;
+ /*
+ * TODO: We could create the buffer by wrapping the image bytes in the frame
+ * (enqueing the frame in the notify function) to save the copy operation.
+ * It will only work if all the buffers are disposed before closing the camera
+ * when state changes from PAUSED to READY.
+ */
+ buffer = gst_buffer_new_allocate (NULL, frame->image_bytes, NULL);
+ gst_buffer_fill (buffer, 0, frame->image, frame->image_bytes);
+ /*
+ * TODO: There is a field timestamp in the frame structure,
+ * It is not sure if it could be used as PTS or DTS:
+ * we are not sure if it comes from a monotonic clock,
+ * and it seems to be left undefined under MS Windows.
+ */
+ ret = dc1394_capture_enqueue (src->camera, frame);
+ if (ret != DC1394_SUCCESS) {
+ GST_ELEMENT_WARNING (src, RESOURCE, READ, (NULL),
+ ("Could not enqueue frame: %s.", dc1394_error_get_string (ret)));
}
-
- *buffer = outbuf;
-
- return res;
+ *obuf = buffer;
+ return GST_FLOW_OK;
error:
- {
- return GST_FLOW_ERROR;
- }
+ if (buffer)
+ gst_buffer_unref (buffer);
+ return GST_FLOW_ERROR;
}
-static gboolean
-gst_dc1394_parse_caps (const GstCaps * caps,
- gint * width,
- gint * height,
- gint * rate_numerator, gint * rate_denominator, gint * vmode, gint * bpp)
+static void
+gst_dc1394_set_prop_camera_guid (GstDc1394 * src, const gchar * guid)
{
- const GstStructure *structure;
- GstPadLinkReturn ret;
- const GValue *framerate;
-
- if (gst_caps_get_size (caps) < 1)
- return FALSE;
-
- structure = gst_caps_get_structure (caps, 0);
+ gchar *end;
- ret = gst_structure_get_int (structure, "width", width);
- ret &= gst_structure_get_int (structure, "height", height);
-
- framerate = gst_structure_get_value (structure, "framerate");
-
- ret &= gst_structure_get_int (structure, "vmode", vmode);
-
- ret &= gst_structure_get_int (structure, "bpp", bpp);
-
-
- if (framerate) {
- *rate_numerator = gst_value_get_fraction_numerator (framerate);
- *rate_denominator = gst_value_get_fraction_denominator (framerate);
- } else {
- ret = FALSE;
+ if (!guid) {
+ GST_DEBUG_OBJECT (src, "Null camera GUID value: %s.",
+ "first camera available will be used");
+ src->guid = -1;
+ return;
+ }
+ errno = 0;
+ src->guid = g_ascii_strtoull (guid, &end, 16);
+ if (errno == ERANGE || end == guid || *end != '\0') {
+ GST_ERROR_OBJECT (src, "Invalid camera GUID value: %s.", guid);
+ return;
}
-
- return ret;
}
-static GstStateChangeReturn
-gst_dc1394_change_state (GstElement * element, GstStateChange transition)
-{
- GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
- GstDc1394 *src = GST_DC1394 (element);
-
- switch (transition) {
- case GST_STATE_CHANGE_NULL_TO_READY:
- GST_LOG_OBJECT (src, "State change null to ready");
- src->dc1394 = dc1394_new ();
- break;
- case GST_STATE_CHANGE_READY_TO_PAUSED:
- GST_LOG_OBJECT (src, "State ready to paused");
-
- if (src->caps) {
- gst_caps_unref (src->caps);
- src->caps = NULL;
- }
- src->caps = gst_dc1394_get_cam_caps (src);
- if (src->caps == NULL) {
- GST_LOG_OBJECT (src,
- "Error : Set property could not get cam caps ! , reverting to default");
- src->caps = gst_dc1394_get_all_dc1394_caps ();
- ret = GST_STATE_CHANGE_FAILURE;
- }
-
- break;
- case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
- GST_LOG_OBJECT (src, "State change paused to playing");
-
- if (!gst_dc1394_open_cam_with_best_caps (src)) {
- ret = GST_STATE_CHANGE_FAILURE;
- }
-
- if (src->camera && !gst_dc1394_change_camera_transmission (src, TRUE)) {
- ret = GST_STATE_CHANGE_FAILURE;
- }
- break;
- default:
- break;
+static gchar *
+gst_dc1394_get_prop_camera_guid (GstDc1394 * src)
+{
+ if (src->guid == -1) {
+ return NULL;
}
- if (ret == GST_STATE_CHANGE_FAILURE)
- return ret;
-
- ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
-
- switch (transition) {
- case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
- GST_LOG_OBJECT (src, "State change playing to paused");
- break;
- case GST_STATE_CHANGE_PAUSED_TO_READY:
- GST_LOG_OBJECT (src, "State change paused to ready");
-
- if (src->camera && !gst_dc1394_change_camera_transmission (src, FALSE)) {
-
- if (src->camera) {
- dc1394_camera_free (src->camera);
- }
- src->camera = NULL;
-
- if (src->caps) {
- gst_caps_unref (src->caps);
- src->caps = NULL;
- }
-
- ret = GST_STATE_CHANGE_FAILURE;
- }
-
- break;
- case GST_STATE_CHANGE_READY_TO_NULL:
- GST_LOG_OBJECT (src, "State change ready to null");
- if (src->camera) {
- dc1394_camera_free (src->camera);
- }
- src->camera = NULL;
-
- if (src->dc1394) {
- dc1394_free (src->dc1394);
- }
- src->dc1394 = NULL;
+ return g_strdup_printf ("%016" G_GINT64_MODIFIER "X", src->guid);
+}
- if (src->caps) {
- gst_caps_unref (src->caps);
- src->caps = NULL;
- }
- break;
- default:
- break;
- }
- return ret;
+static void
+gst_dc1394_set_prop_camera_unit (GstDc1394 * src, gint unit)
+{
+ src->unit = unit;
}
static gint
-gst_dc1394_caps_set_format_vmode_caps (GstStructure * gs, gint mode)
+gst_dc1394_get_prop_camera_unit (GstDc1394 * src)
{
- gint retval = 0;
-
- switch (mode) {
- case DC1394_VIDEO_MODE_160x120_YUV444:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_YUV444);
- gst_dc1394_set_caps_framesize (gs, 160, 120);
- break;
- case DC1394_VIDEO_MODE_320x240_YUV422:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_YUV422);
- gst_dc1394_set_caps_framesize (gs, 320, 240);
- break;
- case DC1394_VIDEO_MODE_640x480_YUV411:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_YUV411);
- gst_dc1394_set_caps_framesize (gs, 640, 480);
- break;
- case DC1394_VIDEO_MODE_640x480_YUV422:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_YUV422);
- gst_dc1394_set_caps_framesize (gs, 640, 480);
- break;
- case DC1394_VIDEO_MODE_640x480_RGB8:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_RGB8);
- gst_dc1394_set_caps_framesize (gs, 640, 480);
- break;
- case DC1394_VIDEO_MODE_640x480_MONO8:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_MONO8);
- gst_dc1394_set_caps_framesize (gs, 640, 480);
- break;
- case DC1394_VIDEO_MODE_640x480_MONO16:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_MONO16);
- gst_dc1394_set_caps_framesize (gs, 640, 480);
- break;
- case DC1394_VIDEO_MODE_800x600_YUV422:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_YUV422);
- gst_dc1394_set_caps_framesize (gs, 800, 600);
- break;
- case DC1394_VIDEO_MODE_800x600_RGB8:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_RGB8);
- gst_dc1394_set_caps_framesize (gs, 800, 600);
- break;
- case DC1394_VIDEO_MODE_800x600_MONO8:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_MONO8);
- gst_dc1394_set_caps_framesize (gs, 800, 600);
- break;
- case DC1394_VIDEO_MODE_1024x768_YUV422:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_YUV422);
- gst_dc1394_set_caps_framesize (gs, 1024, 768);
- break;
- case DC1394_VIDEO_MODE_1024x768_RGB8:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_RGB8);
- gst_dc1394_set_caps_framesize (gs, 1024, 768);
- break;
- case DC1394_VIDEO_MODE_1024x768_MONO8:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_MONO8);
- gst_dc1394_set_caps_framesize (gs, 1024, 768);
- break;
- case DC1394_VIDEO_MODE_800x600_MONO16:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_MONO16);
- gst_dc1394_set_caps_framesize (gs, 800, 600);
- break;
- case DC1394_VIDEO_MODE_1024x768_MONO16:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_MONO16);
- gst_dc1394_set_caps_framesize (gs, 1024, 768);
- break;
- case DC1394_VIDEO_MODE_1280x960_YUV422:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_YUV422);
- gst_dc1394_set_caps_framesize (gs, 1280, 960);
- break;
- case DC1394_VIDEO_MODE_1280x960_RGB8:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_RGB8);
- gst_dc1394_set_caps_framesize (gs, 1280, 960);
- break;
- case DC1394_VIDEO_MODE_1280x960_MONO8:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_MONO8);
- gst_dc1394_set_caps_framesize (gs, 1280, 960);
- break;
- case DC1394_VIDEO_MODE_1600x1200_YUV422:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_YUV422);
- gst_dc1394_set_caps_framesize (gs, 1600, 1200);
- break;
- case DC1394_VIDEO_MODE_1600x1200_RGB8:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_RGB8);
- gst_dc1394_set_caps_framesize (gs, 1600, 1200);
- break;
- case DC1394_VIDEO_MODE_1600x1200_MONO8:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_MONO8);
- gst_dc1394_set_caps_framesize (gs, 1600, 1200);
- break;
- case DC1394_VIDEO_MODE_1280x960_MONO16:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_MONO16);
- gst_dc1394_set_caps_framesize (gs, 1280, 960);
- break;
- case DC1394_VIDEO_MODE_1600x1200_MONO16:
- gst_dc1394_set_caps_color (gs, DC1394_COLOR_CODING_MONO8);
- gst_dc1394_set_caps_framesize (gs, 1600, 1200);
- break;
-
- default:
- retval = -1;
- }
-
- return retval;
-
+ return src->unit;
}
-static gboolean
-gst_dc1394_set_caps_color (GstStructure * gs, gint mc)
+static void
+gst_dc1394_set_prop_iso_speed (GstDc1394 * src, guint speed)
{
- gboolean ret = TRUE;
- gint fourcc;
-
- switch (mc) {
- case DC1394_COLOR_CODING_YUV444:
- gst_structure_set_name (gs, "video/x-raw-yuv");
-
- fourcc = GST_MAKE_FOURCC ('I', 'Y', 'U', '2');
- gst_structure_set (gs,
- "format", GST_TYPE_FOURCC, fourcc, "bpp", G_TYPE_INT, 16, NULL);
+ switch (speed) {
+ case 100:
+ src->iso_speed = DC1394_ISO_SPEED_100;
break;
-
- case DC1394_COLOR_CODING_YUV422:
- gst_structure_set_name (gs, "video/x-raw-yuv");
- fourcc = GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y');
- gst_structure_set (gs,
- "format", GST_TYPE_FOURCC, fourcc, "bpp", G_TYPE_INT, 16, NULL);
+ case 200:
+ src->iso_speed = DC1394_ISO_SPEED_200;
break;
-
- case DC1394_COLOR_CODING_YUV411:
- gst_structure_set_name (gs, "video/x-raw-yuv");
- fourcc = GST_MAKE_FOURCC ('I', 'Y', 'U', '1');
- gst_structure_set (gs,
- "format", GST_TYPE_FOURCC, fourcc, "bpp", G_TYPE_INT, 12, NULL);
+ case 400:
+ src->iso_speed = DC1394_ISO_SPEED_400;
break;
- case DC1394_COLOR_CODING_RGB8:
- gst_structure_set_name (gs, "video/x-raw-rgb");
- gst_structure_set (gs,
- "bpp", G_TYPE_INT, 24,
- "depth", G_TYPE_INT, 24,
- "endianness", G_TYPE_INT, G_BIG_ENDIAN,
- "red_mask", G_TYPE_INT, 0xFF0000,
- "green_mask", G_TYPE_INT, 0x00FF00,
- "blue_mask", G_TYPE_INT, 0x0000FF, NULL);
+ case 800:
+ src->iso_speed = DC1394_ISO_SPEED_800;
break;
- case DC1394_COLOR_CODING_MONO8:
- gst_structure_set_name (gs, "video/x-raw-gray");
- gst_structure_set (gs,
- "bpp", G_TYPE_INT, 8, "depth", G_TYPE_INT, 8, NULL);
-
+ case 1600:
+ src->iso_speed = DC1394_ISO_SPEED_1600;
break;
- case DC1394_COLOR_CODING_MONO16:
- gst_structure_set_name (gs, "video/x-raw-gray");
- gst_structure_set (gs,
- "bpp", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16, NULL);
- // there is no fourcc for this format
+ case 3200:
+ src->iso_speed = DC1394_ISO_SPEED_3200;
break;
default:
- GST_DEBUG ("Ignoring unsupported color format %d", mc);
- ret = FALSE;
- break;
+ GST_ERROR_OBJECT (src, "Invalid ISO speed value: %d.", speed);
}
- return ret;
}
-static void
-gst_dc1394_set_caps_framesize (GstStructure * gs, gint width, gint height)
+static guint
+gst_dc1394_get_prop_iso_speed (GstDc1394 * src)
{
- gst_structure_set (gs,
- "width", G_TYPE_INT, width, "height", G_TYPE_INT, height, NULL);
+ switch (src->iso_speed) {
+ case DC1394_ISO_SPEED_100:
+ return 100;
+ case DC1394_ISO_SPEED_200:
+ return 200;
+ case DC1394_ISO_SPEED_400:
+ return 400;
+ case DC1394_ISO_SPEED_800:
+ return 800;
+ case DC1394_ISO_SPEED_1600:
+ return 1600;
+ case DC1394_ISO_SPEED_3200:
+ return 3200;
+ default: /* never reached */
+ return DC1394_ISO_SPEED_MIN - 1;
+ }
}
+
static void
-gst_dc1394_set_caps_framesize_range (GstStructure * gs,
- gint minwidth,
- gint maxwidth,
- gint incwidth, gint minheight, gint maxheight, gint incheight)
+gst_dc1394_set_prop_dma_buffer_size (GstDc1394 * src, guint size)
{
- /*
- Format 7 cameras allow you to change the camera width/height in multiples
- of incwidth/incheight up to some max. This sets the necessary
- list structure in the gst caps structure
- */
-
- GValue widthlist = { 0 };
- GValue widthval = { 0 };
- GValue heightlist = { 0 };
- GValue heightval = { 0 };
- gint x = 0;
-
- g_value_init (&widthlist, GST_TYPE_LIST);
- g_value_init (&widthval, G_TYPE_INT);
- for (x = minwidth; x <= maxwidth; x += incwidth) {
- g_value_set_int (&widthval, x);
- gst_value_list_append_value (&widthlist, &widthval);
- }
- gst_structure_set_value (gs, "width", &widthlist);
-
- g_value_unset (&widthlist);
- g_value_unset (&widthval);
-
- g_value_init (&heightlist, GST_TYPE_LIST);
- g_value_init (&heightval, G_TYPE_INT);
- for (x = minheight; x <= maxheight; x += incheight) {
- g_value_set_int (&heightval, x);
- gst_value_list_append_value (&heightlist, &heightval);
- }
-
- gst_structure_set_value (gs, "height", &heightlist);
-
- g_value_unset (&heightlist);
- g_value_unset (&heightval);
+ src->dma_buffer_size = size;
}
-static gint
-gst_dc1394_caps_set_framerate_list (GstStructure * gs,
- dc1394framerates_t * framerates)
+static guint
+gst_dc1394_get_prop_dma_buffer_size (GstDc1394 * src)
{
- GValue framefrac = { 0 };
- GValue frameratelist = { 0 };
- gint f;
-
- g_value_init (&frameratelist, GST_TYPE_LIST);
- g_value_init (&framefrac, GST_TYPE_FRACTION);
-
- // figure out the frame rate
- for (f = framerates->num - 1; f >= 0; f--) {
- /* reverse order so we place the faster frame rates higher in
- the sequence */
- if (framerates->framerates[f]) {
- gst_dc1394_framerate_const_to_frac (framerates->framerates[f],
- &framefrac);
-
- gst_value_list_append_value (&frameratelist, &framefrac);
- }
- }
- gst_structure_set_value (gs, "framerate", &frameratelist);
-
- g_value_unset (&framefrac);
- g_value_unset (&frameratelist);
- return 0;
+ return src->dma_buffer_size;
}
-
-static void
-gst_dc1394_framerate_const_to_frac (gint framerateconst, GValue * framefrac)
+static gboolean
+gst_dc1394_open_cam (GstDc1394 * src)
{
-
- // frac must have been already initialized
-
- switch (framerateconst) {
- case DC1394_FRAMERATE_1_875:
- gst_value_set_fraction (framefrac, 15, 8);
- break;
- case DC1394_FRAMERATE_3_75:
- gst_value_set_fraction (framefrac, 15, 4);
- break;
- case DC1394_FRAMERATE_7_5:
- gst_value_set_fraction (framefrac, 15, 2);
- break;
- case DC1394_FRAMERATE_15:
- gst_value_set_fraction (framefrac, 15, 1);
- break;
- case DC1394_FRAMERATE_30:
- gst_value_set_fraction (framefrac, 30, 1);
- break;
- case DC1394_FRAMERATE_60:
- gst_value_set_fraction (framefrac, 60, 1);
- break;
- case DC1394_FRAMERATE_120:
- gst_value_set_fraction (framefrac, 120, 1);
- break;
- case DC1394_FRAMERATE_240:
- gst_value_set_fraction (framefrac, 240, 1);
- break;
+ dc1394camera_list_t *cameras;
+ dc1394error_t ret;
+ int number;
+ uint64_t guid;
+ int unit;
+
+ src->dc1394 = dc1394_new ();
+ if (!src->dc1394) {
+ GST_ELEMENT_ERROR (src, LIBRARY, INIT, (NULL),
+ ("Could not initialize dc1394 library."));
+ goto error;
}
-}
-
-static GstCaps *
-gst_dc1394_get_all_dc1394_caps (void)
-{
- /*
- generate all possible caps
-
- */
- GstCaps *gcaps;
- gint i = 0;
-
- gcaps = gst_caps_new_empty ();
- // first, the fixed mode caps
- for (i = DC1394_VIDEO_MODE_MIN; i < DC1394_VIDEO_MODE_EXIF; i++) {
- GstStructure *gs = gst_structure_empty_new ("video");
- gint ret = gst_dc1394_caps_set_format_vmode_caps (gs, i);
-
- gst_structure_set (gs,
- "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
- gst_structure_set (gs, "vmode", G_TYPE_INT, i, NULL);
- if (ret >= 0) {
- gst_caps_append_structure (gcaps, gs);
- }
+ number = -1;
+ guid = -1;
+ unit = -1;
+ ret = dc1394_camera_enumerate (src->dc1394, &cameras);
+ if (ret != DC1394_SUCCESS) {
+ GST_ELEMENT_ERROR (src, LIBRARY, FAILED, (NULL),
+ ("Could not enumerate cameras: %s.", dc1394_error_get_string (ret)));
+ goto error;
}
-
- // then Format 7 options
-
- for (i = DC1394_COLOR_CODING_MIN; i <= DC1394_COLOR_CODING_MAX; i++) {
- GstStructure *gs = gst_structure_empty_new ("video");
-
- //int ret = gst_dc1394_caps_set_format_vmode_caps(gs, i);
-
- gst_structure_set (gs, "vmode", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
-
- gst_structure_set (gs,
- "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
- gst_structure_set (gs,
- "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
- "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
-
- if (gst_dc1394_set_caps_color (gs, i)) {
- gst_caps_append_structure (gcaps, gs);
+ for (int i = 0; i < cameras->num; i++) {
+ GST_DEBUG_OBJECT (src, "Camera %2d is %016" G_GINT64_MODIFIER "X %d.",
+ i, cameras->ids[i].guid, cameras->ids[i].unit);
+ if ((src->guid == -1 || src->guid == cameras->ids[i].guid) &&
+ (src->unit == -1 || src->unit == cameras->ids[i].unit)) {
+ number = i;
+ guid = cameras->ids[i].guid;
+ unit = cameras->ids[i].unit;
}
}
- return gcaps;
-
-}
-
-GstCaps *
-gst_dc1394_get_cam_caps (GstDc1394 * src)
-{
-
- dc1394camera_t *camera = NULL;
- dc1394camera_list_t *cameras = NULL;
- dc1394error_t camerr;
- gint i, j;
- dc1394video_modes_t modes;
- dc1394framerates_t framerates;
- GstCaps *gcaps = NULL;
-
- gcaps = gst_caps_new_empty ();
-
- camerr = dc1394_camera_enumerate (src->dc1394, &cameras);
-
- if (camerr != DC1394_SUCCESS || cameras == NULL) {
- GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND,
- ("Can't find cameras error : %d", camerr),
- ("Can't find cameras error : %d", camerr));
+ dc1394_camera_free_list (cameras);
+ if (number < 0) {
+ if (src->guid == -1) {
+ GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL),
+ ("No cameras found."));
+ } else {
+ GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL),
+ ("Camera %016" G_GINT64_MODIFIER "X %d not found.",
+ src->guid, src->unit));
+ }
goto error;
}
- if (cameras->num == 0) {
- GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, ("There were no cameras"),
- ("There were no cameras"));
+ GST_DEBUG_OBJECT (src, "Open camera %016" G_GINT64_MODIFIER "X %d.",
+ guid, unit);
+ src->camera = dc1394_camera_new_unit (src->dc1394, guid, unit);
+ if (!src->camera) {
+ GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ_WRITE, (NULL),
+ ("Could not open camera %016" G_GINT64_MODIFIER "X %d.", guid, unit));
goto error;
}
-
- if (src->camnum > (cameras->num - 1)) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Invalid camera number"),
- ("Invalid camera number %d", src->camnum));
- goto error;
+ GST_DEBUG_OBJECT (src,
+ "Camera %016" G_GINT64_MODIFIER "X %d opened: \"%s %s\".",
+ src->camera->guid, src->camera->unit,
+ src->camera->vendor, src->camera->model);
+
+ if (src->iso_speed > DC1394_ISO_SPEED_400) {
+ ret = dc1394_video_set_operation_mode (src->camera,
+ DC1394_OPERATION_MODE_1394B);
+ if (ret != DC1394_SUCCESS) {
+ GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
+ ("Could not set 1394B operation mode: %s.",
+ dc1394_error_get_string (ret)));
+ goto error;
+ }
}
-
- camera =
- dc1394_camera_new_unit (src->dc1394, cameras->ids[src->camnum].guid,
- cameras->ids[src->camnum].unit);
-
- dc1394_camera_free_list (cameras);
- cameras = NULL;
-
- camerr = dc1394_video_get_supported_modes (camera, &modes);
- if (camerr != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Error getting supported modes"),
- ("Error getting supported modes"));
+ ret = dc1394_video_set_iso_speed (src->camera, src->iso_speed);
+ if (ret != DC1394_SUCCESS) {
+ GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
+ ("Could not set ISO speed %d: %s.", src->iso_speed,
+ dc1394_error_get_string (ret)));
goto error;
}
- for (i = modes.num - 1; i >= 0; i--) {
- int m = modes.modes[i];
-
- if (m < DC1394_VIDEO_MODE_EXIF) {
-
- GstStructure *gs = gst_structure_empty_new ("video");
-
- gst_structure_set (gs, "vmode", G_TYPE_INT, m, NULL);
+ return TRUE;
- if (gst_dc1394_caps_set_format_vmode_caps (gs, m) < 0) {
- GST_ELEMENT_ERROR (src, STREAM, FAILED,
- ("attempt to set mode to %d failed", m),
- ("attempt to set mode to %d failed", m));
- goto error;
- } else {
+error:
+ if (src->camera) {
+ dc1394_camera_free (src->camera);
+ src->camera = NULL;
+ }
+ if (src->dc1394) {
+ dc1394_free (src->dc1394);
+ src->dc1394 = NULL;
+ }
+ return FALSE;
+}
- camerr = dc1394_video_get_supported_framerates (camera, m, &framerates);
- gst_dc1394_caps_set_framerate_list (gs, &framerates);
- gst_caps_append_structure (gcaps, gs);
- }
- } else {
- // FORMAT 7
- guint maxx, maxy;
- GstStructure *gs = gst_structure_empty_new ("video");
- dc1394color_codings_t colormodes;
- guint xunit, yunit;
-
- gst_structure_set (gs, "vmode", G_TYPE_INT, m, NULL);
-
- // Get the maximum frame size
- camerr = dc1394_format7_get_max_image_size (camera, m, &maxx, &maxy);
- if (camerr != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
- ("Error getting format 7 max image size"),
- ("Error getting format 7 max image size"));
- goto error;
- }
- GST_LOG_OBJECT (src, "Format 7 maxx=%d maxy=%d", maxx, maxy);
+static void
+gst_dc1394_close_cam (GstDc1394 * src)
+{
+ GST_DEBUG_OBJECT (src,
+ "Close camera %016" G_GINT64_MODIFIER "X %d: \"%s %s\".",
+ src->camera->guid, src->camera->unit,
+ src->camera->vendor, src->camera->model);
+ if (src->caps) {
+ gst_caps_unref (src->caps);
+ src->caps = NULL;
+ }
+ dc1394_camera_free (src->camera);
+ src->camera = NULL;
+ dc1394_free (src->dc1394);
+ src->dc1394 = NULL;
+ GST_DEBUG_OBJECT (src, "Camera closed.");
+}
- camerr = dc1394_format7_get_unit_size (camera, m, &xunit, &yunit);
- if (camerr != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
- ("Error getting format 7 image unit size"),
- ("Error getting format 7 image unit size"));
- goto error;
- }
- GST_LOG_OBJECT (src, "Format 7 unitx=%d unity=%d", xunit, yunit);
-
- gst_dc1394_set_caps_framesize_range (gs, xunit, maxx, xunit,
- yunit, maxy, yunit);
-
- // note that format 7 has no concept of a framerate, so we pass the
- // full range
- gst_structure_set (gs,
- "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
-
- // get the available color codings
- camerr = dc1394_format7_get_color_codings (camera, m, &colormodes);
- if (camerr != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
- ("Error getting format 7 color modes"),
- ("Error getting format 7 color modes"));
- goto error;
- }
- for (j = 0; j < colormodes.num; j++) {
- GstStructure *newgs = gst_structure_copy (gs);
+static gboolean
+gst_dc1394_start_cam (GstDc1394 * src)
+{
+ dc1394error_t ret;
+ dc1394switch_t status;
- gst_dc1394_set_caps_color (newgs, colormodes.codings[j]);
- GST_LOG_OBJECT (src, "Format 7 colormode set : %d",
- colormodes.codings[j]);
- // note that since there are multiple color modes, we append
- // multiple structures.
- gst_caps_append_structure (gcaps, newgs);
- }
+ GST_DEBUG_OBJECT (src, "Setup capture with a DMA buffer of %d frames",
+ src->dma_buffer_size);
+ ret = dc1394_capture_setup (src->camera, src->dma_buffer_size,
+ DC1394_CAPTURE_FLAGS_DEFAULT);
+ if (ret == DC1394_NO_BANDWIDTH) {
+ GST_DEBUG_OBJECT (src,
+ "Could not setup capture with available ISO bandwidth,"
+ "releasing channels and bandwidth and retrying...");
+ ret = dc1394_iso_release_all (src->camera);
+ if (ret != DC1394_SUCCESS) {
+ GST_ELEMENT_WARNING (src, RESOURCE, FAILED, (NULL),
+ ("Could not release ISO channels and bandwidth: %s",
+ dc1394_error_get_string (ret)));
}
+ ret = dc1394_capture_setup (src->camera, src->dma_buffer_size,
+ DC1394_CAPTURE_FLAGS_DEFAULT);
}
-
- if (camera) {
- dc1394_camera_free (camera);
+ if (ret != DC1394_SUCCESS) {
+ GST_ELEMENT_ERROR (src, RESOURCE, FAILED, (NULL),
+ ("Could not setup capture: %s", dc1394_error_get_string (ret)));
+ goto error_capture;
}
- return gcaps;
-
-error:
-
- if (gcaps) {
- gst_caps_unref (gcaps);
+ /*
+ * TODO: dc1394_capture_setup/stop can start/stop the transmission
+ * when called with DC1394_CAPTURE_FLAGS_AUTO_ISO in the flags.
+ * The repeated trials check is a leftover of the original code,
+ * and might not be needed.
+ */
+ GST_DEBUG_OBJECT (src, "Enable camera transmission.");
+ ret = dc1394_video_set_transmission (src->camera, DC1394_ON);
+ if (ret != DC1394_SUCCESS) {
+ GST_ELEMENT_ERROR (src, RESOURCE, FAILED, (NULL),
+ ("Could not set transmission status: %s.",
+ dc1394_error_get_string (ret)));
+ goto error_transmission;
}
-
- if (cameras) {
- dc1394_camera_free_list (cameras);
- cameras = NULL;
+ ret = dc1394_video_get_transmission (src->camera, &status);
+ for (guint trials = 10;
+ (trials > 0) && !(ret == DC1394_SUCCESS && status == DC1394_ON);
+ trials--) {
+ GST_DEBUG_OBJECT (src,
+ "Wait for camera to start transmission (%d trials left).", trials);
+ g_usleep (50000);
+ ret = dc1394_video_get_transmission (src->camera, &status);
}
-
- if (camera) {
- dc1394_camera_free (camera);
- camera = NULL;
+ if (!(ret == DC1394_SUCCESS && status == DC1394_ON)) {
+ GST_ELEMENT_ERROR (src, RESOURCE, FAILED, (NULL),
+ ("Could not get positive transmission status: %s.",
+ dc1394_error_get_string (ret)));
+ goto error_transmission;
}
- return NULL;
-}
-
-static gint
-gst_dc1394_framerate_frac_to_const (gint num, gint denom)
-{
- // frac must have been already initialized
- int retvalue = -1;
-
- if (num == 15 && denom == 8)
- retvalue = DC1394_FRAMERATE_1_875;
-
- if (num == 15 && denom == 4)
- retvalue = DC1394_FRAMERATE_3_75;
-
- if (num == 15 && denom == 2)
- retvalue = DC1394_FRAMERATE_7_5;
-
- if (num == 15 && denom == 1)
- retvalue = DC1394_FRAMERATE_15;
-
-
- if (num == 30 && denom == 1)
- retvalue = DC1394_FRAMERATE_30;
-
- if (num == 60 && denom == 1)
- retvalue = DC1394_FRAMERATE_60;
+ GST_DEBUG_OBJECT (src, "Capture successfully started.");
+ return TRUE;
- return retvalue;
+error_transmission:
+ ret = dc1394_capture_stop (src->camera);
+ if (ret != DC1394_SUCCESS) {
+ GST_ELEMENT_WARNING (src, RESOURCE, FAILED, (NULL),
+ ("Could not stop capture: %s.", dc1394_error_get_string (ret)));
+ }
+error_capture:
+ return FALSE;
}
static gboolean
-gst_dc1394_open_cam_with_best_caps (GstDc1394 * src)
+gst_dc1394_stop_cam (GstDc1394 * src)
{
- dc1394camera_list_t *cameras = NULL;
- gint err = 0;
- int framerateconst;
-
- GST_LOG_OBJECT (src, "Opening the camera!!!");
-
-
- if (dc1394_camera_enumerate (src->dc1394, &cameras) != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Can't find cameras"),
- ("Can't find cameras"));
- goto error;
+ dc1394error_t ret;
+
+ GST_DEBUG_OBJECT (src, "Disable camera transmission.");
+ ret = dc1394_video_set_transmission (src->camera, DC1394_OFF);
+ if (ret != DC1394_SUCCESS) {
+ GST_ELEMENT_ERROR (src, RESOURCE, FAILED, (NULL),
+ ("Could not set transmission status: %s.",
+ dc1394_error_get_string (ret)));
+ return FALSE;
}
- GST_LOG_OBJECT (src, "Found %d cameras", cameras->num);
-
- if (src->camnum > (cameras->num - 1)) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Invalid camera number"),
- ("Invalid camera number"));
- goto error;
+ GST_DEBUG_OBJECT (src, "Clear capture resources.");
+ ret = dc1394_capture_stop (src->camera);
+ if (ret != DC1394_SUCCESS && ret != DC1394_CAPTURE_IS_NOT_SET) {
+ GST_ELEMENT_ERROR (src, RESOURCE, FAILED, (NULL),
+ ("Could not clear capture: %s.", dc1394_error_get_string (ret)));
+ return FALSE;
}
- GST_LOG_OBJECT (src, "Opening camera : %d", src->camnum);
-
- src->camera =
- dc1394_camera_new_unit (src->dc1394, cameras->ids[src->camnum].guid,
- cameras->ids[src->camnum].unit);
-
- dc1394_camera_free_list (cameras);
- cameras = NULL;
-
- // figure out mode
- framerateconst = gst_dc1394_framerate_frac_to_const (src->rate_numerator,
- src->rate_denominator);
-
- GST_LOG_OBJECT (src, "The dma buffer queue size is %d buffers",
- src->bufsize);
-
- switch (src->iso_speed) {
- case 100:
- err = dc1394_video_set_iso_speed (src->camera, DC1394_ISO_SPEED_100);
- break;
- case 200:
- err = dc1394_video_set_iso_speed (src->camera, DC1394_ISO_SPEED_200);
- break;
- case 400:
- err = dc1394_video_set_iso_speed (src->camera, DC1394_ISO_SPEED_400);
+ switch (ret) {
+ case DC1394_CAPTURE_IS_NOT_SET:
+ GST_DEBUG_OBJECT (src, "Capture was not set up.");
break;
- case 800:
- if (src->camera->bmode_capable > 0) {
- dc1394_video_set_operation_mode (src->camera,
- DC1394_OPERATION_MODE_1394B);
- err = dc1394_video_set_iso_speed (src->camera, DC1394_ISO_SPEED_800);
- }
- break;
- case 1600:
- if (src->camera->bmode_capable > 0) {
- dc1394_video_set_operation_mode (src->camera,
- DC1394_OPERATION_MODE_1394B);
- err = dc1394_video_set_iso_speed (src->camera, DC1394_ISO_SPEED_1600);
- }
- break;
- case 3200:
- if (src->camera->bmode_capable > 0) {
- dc1394_video_set_operation_mode (src->camera,
- DC1394_OPERATION_MODE_1394B);
- err = dc1394_video_set_iso_speed (src->camera, DC1394_ISO_SPEED_3200);
- }
+ case DC1394_SUCCESS:
+ GST_DEBUG_OBJECT (src, "Capture successfully stopped.");
break;
default:
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Invalid ISO speed"),
- ("Invalid ISO speed"));
- goto error;
break;
}
- if (err != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Could not set ISO speed"),
- ("Could not set ISO speed"));
- goto error;
- }
-
- GST_LOG_OBJECT (src, "Setting mode : %d", src->vmode);
- err = dc1394_video_set_mode (src->camera, src->vmode);
-
- if (err != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Could not set video mode %d",
- src->vmode), ("Could not set video mode %d", src->vmode));
- goto error;
- }
+ return TRUE;
+}
- GST_LOG_OBJECT (src, "Setting framerate : %d", framerateconst);
- dc1394_video_set_framerate (src->camera, framerateconst);
- if (err != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Could not set framerate to %d",
- framerateconst), ("Could not set framerate to %d", framerateconst));
+static gboolean
+gst_dc1394_set_cam_caps (GstDc1394 * src, GstCaps * caps)
+{
+ GstCaps *mode_caps;
+ gboolean ok, supported;
+ dc1394video_modes_t supported_modes;
+ dc1394video_mode_t mode;
+ dc1394color_codings_t supported_codings;
+ dc1394color_coding_t coding;
+ dc1394framerates_t supported_rates;
+ dc1394framerate_t rate;
+ double rate_decimal;
+ uint64_t total_bytes;
+ uint32_t width, width_step, height, height_step;
+
+ ok = dc1394_video_get_supported_modes (src->camera,
+ &supported_modes) == DC1394_SUCCESS;
+ if (!ok) {
+ GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
+ ("Could not get supported modes."));
goto error;
}
- // set any format-7 parameters if this is a format-7 mode
- if (src->vmode >= DC1394_VIDEO_MODE_FORMAT7_MIN &&
- src->vmode <= DC1394_VIDEO_MODE_FORMAT7_MAX) {
- // the big thing we care about right now is frame size
- err = dc1394_format7_set_image_size (src->camera, src->vmode,
- src->width, src->height);
- if (err != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
- ("Could not set format 7 image size to %d x %d", src->width,
- src->height), ("Could not set format 7 image size to %d x %d",
- src->width, src->height));
-
- goto error;
+ supported = FALSE;
+ for (guint m = 0; m < supported_modes.num && !supported; m++) {
+ mode = supported_modes.modes[m];
+ mode_caps = gst_caps_new_empty ();
+ if (dc1394_is_video_mode_scalable (mode)) {
+ ok &= dc1394_format7_get_color_codings (src->camera, mode,
+ &supported_codings) == DC1394_SUCCESS;
+ ok &= dc1394_format7_get_max_image_size (src->camera, mode,
+ &width, &height) == DC1394_SUCCESS;
+ ok &= dc1394_format7_get_unit_size (src->camera, mode,
+ &width_step, &height_step) == DC1394_SUCCESS;
+ } else {
+ ok &= dc1394_get_color_coding_from_video_mode (src->camera, mode,
+ &coding) == DC1394_SUCCESS;
+ ok &= dc1394_get_image_size_from_video_mode (src->camera, mode,
+ &width, &height) == DC1394_SUCCESS;
+ ok &= dc1394_video_get_supported_framerates (src->camera, mode,
+ &supported_rates) == DC1394_SUCCESS;
}
-
+ if (!ok) {
+ GST_ELEMENT_WARNING (src, RESOURCE, SETTINGS, (NULL),
+ ("Could not get video mode %d parameters.", mode));
+ } else if (dc1394_is_video_mode_scalable (mode)) {
+ gst_caps_append (mode_caps, gst_dc1394_build_caps (&supported_codings,
+ NULL, width_step, width, width_step, height_step, height,
+ height_step));
+ } else {
+ supported_codings.num = 1;
+ supported_codings.codings[0] = coding;
+ gst_caps_append (mode_caps, gst_dc1394_build_caps (&supported_codings,
+ &supported_rates, width, width, 1, height, height, 1));
+ }
+ supported = gst_caps_can_intersect (caps, mode_caps);
+ gst_caps_unref (mode_caps);
}
- err = dc1394_capture_setup (src->camera, src->bufsize,
- DC1394_CAPTURE_FLAGS_DEFAULT);
- if (err != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Error setting capture mode"),
- ("Error setting capture mode"));
+ ok = supported && gst_dc1394_parse_caps (caps, &supported_codings,
+ &rate, &rate_decimal, &width, &height);
+ if (!ok) {
+ GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
+ ("Unsupported caps %" GST_PTR_FORMAT, caps));
+ goto error;
}
- if (err != DC1394_SUCCESS) {
- if (err == DC1394_NO_BANDWIDTH) {
- GST_LOG_OBJECT (src, "Capture setup_dma failed."
- "Trying to cleanup the iso_channels_and_bandwidth and retrying");
-
- // try to cleanup the bandwidth and retry
- err = dc1394_iso_release_all (src->camera);
- if (err != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
- ("Could not cleanup bandwidth"), ("Could not cleanup bandwidth"));
- goto error;
- } else {
- err =
- dc1394_capture_setup (src->camera, src->bufsize,
- DC1394_CAPTURE_FLAGS_DEFAULT);
- if (err != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
- ("unable to setup camera error %d", err),
- ("unable to setup camera error %d", err));
- goto error;
- }
- }
- } else {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
- ("unable to setup camera error %d", err),
- ("unable to setup camera error %d", err));
- goto error;
-
+ GST_DEBUG_OBJECT (src, "Set video mode %d.", mode);
+ ok = dc1394_video_set_mode (src->camera, mode) == DC1394_SUCCESS;
+ if (!ok) {
+ GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
+ ("Could not set video mode %d.", mode));
+ goto error;
+ }
+ if (dc1394_is_video_mode_scalable (mode)) {
+ ok = FALSE;
+ for (guint c = 0; c < supported_codings.num && !ok; c++) {
+ coding = supported_codings.codings[c];
+ GST_DEBUG_OBJECT (src,
+ "Try format7 video mode %d with coding %d, size %d %d, and rate %.4f Hz.",
+ mode, coding, width, height, rate_decimal);
+ ok = (dc1394_format7_set_color_coding (src->camera, mode,
+ coding) == DC1394_SUCCESS)
+ && (dc1394_format7_set_image_size (src->camera, mode,
+ width, height) == DC1394_SUCCESS)
+ && (dc1394_format7_get_total_bytes (src->camera, mode,
+ &total_bytes) == DC1394_SUCCESS)
+ && (dc1394_format7_set_packet_size (src->camera, mode,
+ total_bytes * rate_decimal * 0.000125) == DC1394_SUCCESS);
}
+ } else {
+ GST_DEBUG_OBJECT (src, "Set fixed video mode %d rate %.4f Hz (%d).",
+ mode, rate_decimal, rate);
+ ok = dc1394_video_set_framerate (src->camera, rate) == DC1394_SUCCESS;
+ }
+ /* TODO: check feature framerate */
+ if (!ok) {
+ GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
+ ("Could not set video mode %d parameters.", mode));
+ goto error;
}
-
-
return TRUE;
error:
+ return FALSE;
+}
- if (src->camera) {
- dc1394_camera_free (src->camera);
- src->camera = NULL;
- }
- return FALSE;
+GstCaps *
+gst_dc1394_get_cam_caps (GstDc1394 * src)
+{
+ gboolean ok;
+ dc1394video_modes_t supported_modes;
+ dc1394video_mode_t mode;
+ dc1394color_codings_t supported_codings;
+ dc1394color_coding_t coding;
+ dc1394framerates_t supported_rates;
+ uint32_t width, width_step, height, height_step;
+
+ if (src->caps)
+ return gst_caps_ref (src->caps);
+
+ ok = dc1394_video_get_supported_modes (src->camera,
+ &supported_modes) == DC1394_SUCCESS;
+ if (!ok) {
+ GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
+ ("Could not get supported modes."));
+ return NULL;
+ }
+ src->caps = gst_caps_new_empty ();
+ for (guint m = 0; m < supported_modes.num; m++) {
+ mode = supported_modes.modes[m];
+ if (dc1394_is_video_mode_scalable (mode)) {
+ ok &= dc1394_format7_get_color_codings (src->camera, mode,
+ &supported_codings) == DC1394_SUCCESS;
+ ok &= dc1394_format7_get_max_image_size (src->camera, mode,
+ &width, &height) == DC1394_SUCCESS;
+ ok &= dc1394_format7_get_unit_size (src->camera, mode,
+ &width_step, &height_step) == DC1394_SUCCESS;
+ if (!ok) {
+ GST_ELEMENT_WARNING (src, RESOURCE, SETTINGS, (NULL),
+ ("Could not get format7 video mode %d parameters.", mode));
+ } else {
+ gst_caps_append (src->caps, gst_dc1394_build_caps (&supported_codings,
+ NULL, width_step, width, width_step, height_step, height,
+ height_step));
+ }
+ } else {
+ ok &= dc1394_get_image_size_from_video_mode (src->camera, mode,
+ &width, &height) == DC1394_SUCCESS;
+ ok &= dc1394_video_get_supported_framerates (src->camera, mode,
+ &supported_rates) == DC1394_SUCCESS;
+ ok &= dc1394_get_color_coding_from_video_mode (src->camera, mode,
+ &coding) == DC1394_SUCCESS;
+ if (!ok) {
+ GST_ELEMENT_WARNING (src, RESOURCE, SETTINGS, (NULL),
+ ("Could not get fixed video mode %d parameters.", mode));
+ } else {
+ supported_codings.num = 1;
+ supported_codings.codings[0] = coding;
+ gst_caps_append (src->caps, gst_dc1394_build_caps (&supported_codings,
+ &supported_rates, width, width, 1, height, height, 1));
+ }
+ }
+ }
+ GST_DEBUG_OBJECT (src, "Camera capabilities: \"%" GST_PTR_FORMAT "\".",
+ src->caps);
+ return gst_caps_ref (src->caps);
}
-gboolean
-gst_dc1394_change_camera_transmission (GstDc1394 * src, gboolean on)
+static GstCaps *
+gst_dc1394_get_all_caps (void)
{
- dc1394switch_t status = DC1394_OFF;
- dc1394error_t err = DC1394_FAILURE;
- gint i = 0;
-
- g_return_val_if_fail (src->camera, FALSE);
+ GstCaps *caps;
+ dc1394color_coding_t coding;
+ dc1394color_codings_t video_codings;
+ uint32_t width, height;
+
+ const dc1394color_codings_t supported_codings = { 7, {
+ /* DC1394_COLOR_CODING_RGB16S, DC1394_COLOR_CODING_RGB16, */
+ DC1394_COLOR_CODING_RGB8, DC1394_COLOR_CODING_YUV444,
+ DC1394_COLOR_CODING_YUV422, DC1394_COLOR_CODING_YUV411,
+ /* DC1394_COLOR_CODING_RAW16, DC1394_COLOR_CODING_MONO16S */
+ DC1394_COLOR_CODING_MONO16, DC1394_COLOR_CODING_RAW8,
+ DC1394_COLOR_CODING_MONO8}
+ };
+ const dc1394framerates_t all_rates = { 8, {
+ DC1394_FRAMERATE_1_875, DC1394_FRAMERATE_3_75, DC1394_FRAMERATE_7_5,
+ DC1394_FRAMERATE_15, DC1394_FRAMERATE_30, DC1394_FRAMERATE_60,
+ DC1394_FRAMERATE_120, DC1394_FRAMERATE_240}
+ };
+
+ caps = gst_caps_new_empty ();
+ /* First caps for fixed video modes */
+ for (dc1394video_mode_t mode = DC1394_VIDEO_MODE_MIN;
+ mode < DC1394_VIDEO_MODE_EXIF; mode++) {
+ dc1394_get_image_size_from_video_mode (NULL, mode, &width, &height);
+ dc1394_get_color_coding_from_video_mode (NULL, mode, &coding);
+ video_codings.codings[0] = coding;
+ video_codings.num = 1;
+ gst_caps_append (caps, gst_dc1394_build_caps (&video_codings,
+ &all_rates, width, width, 1, height, height, 1));
+ }
+ /* Then caps for Format 7 modes */
+ gst_caps_append (caps, gst_dc1394_build_caps (&supported_codings,
+ NULL, 1, G_MAXINT, 1, 1, G_MAXINT, 1));
+ return caps;
+}
- if (on) {
- status = dc1394_video_set_transmission (src->camera, DC1394_ON);
+static GstCaps *
+gst_dc1394_build_caps (const dc1394color_codings_t * supported_codings,
+ const dc1394framerates_t * supported_rates,
+ uint32_t width_min, uint32_t width_max, uint32_t width_step,
+ uint32_t height_min, uint32_t height_max, uint32_t height_step)
+{
+ GstCaps *caps;
+ GstStructure *structure;
+ GstVideoFormat video_format;
+ dc1394color_coding_t coding;
+ dc1394framerate_t rate;
+ GValue format = { 0 };
+ GValue formats = { 0 };
+ GValue width = { 0 };
+ GValue widths = { 0 };
+ GValue height = { 0 };
+ GValue heights = { 0 };
+ GValue framerate = { 0 };
+ GValue framerates = { 0 };
+
+ caps = gst_caps_new_empty ();
+ for (guint c = 0; c < supported_codings->num; c++) {
+ coding = supported_codings->codings[c];
+ switch (coding) {
+ case DC1394_COLOR_CODING_MONO8:
+ video_format = GST_VIDEO_FORMAT_GRAY8;
+ break;
+ case DC1394_COLOR_CODING_YUV411:
+ video_format = GST_VIDEO_FORMAT_IYU1;
+ break;
+ case DC1394_COLOR_CODING_YUV422:
+ video_format = GST_VIDEO_FORMAT_UYVY;
+ break;
+ case DC1394_COLOR_CODING_YUV444:
+ video_format = GST_VIDEO_FORMAT_IYU2;
+ break;
+ case DC1394_COLOR_CODING_RGB8:
+ video_format = GST_VIDEO_FORMAT_RGB;
+ break;
+ case DC1394_COLOR_CODING_RAW8:
+ video_format = GST_VIDEO_FORMAT_UNKNOWN; /* GST_BAYER_FORMAT_XXXX8 */
+ break;
+ case DC1394_COLOR_CODING_MONO16:
+ video_format = GST_VIDEO_FORMAT_GRAY16_BE;
+ break;
+ /*
+ * The following formats do not exist in Gstreamer:
+ *case DC1394_COLOR_CODING_RGB16: // Unsigned RGB 16 bits per channel
+ * video_format = GST_VIDEO_FORMAT_RGB48;
+ * break;
+ *case DC1394_COLOR_CODING_MONO16S: // Signed grayscale 16 bits
+ * video_format = GST_VIDEO_FORMAT_GRAY16_BE_SIGNED;
+ * break;
+ *case DC1394_COLOR_CODING_RGB16S: // Signed RGB 16 bits per channel
+ * video_format = GST_VIDEO_FORMAT_RGB48_SIGNED;
+ * break;
+ *case DC1394_COLOR_CODING_RAW16: // Raw sensor output (bayer) 16 bits
+ * video_format = GST_VIDEO_FORMAT_UNKNOWN; // GST_BAYER_FORMAT_XXXX16_BE
+ * break;
+ */
+ default:
+ video_format = GST_VIDEO_FORMAT_UNKNOWN;
+ GST_DEBUG ("unsupported dc1394 video coding %d", coding);
+ }
+ if (video_format != GST_VIDEO_FORMAT_UNKNOWN) {
+ g_value_init (&formats, G_TYPE_STRING);
+ g_value_set_string (&formats, gst_video_format_to_string (video_format));
+ structure = gst_structure_new_empty ("video/x-raw");
+ gst_structure_set_value (structure, "format", &formats);
+ gst_caps_append_structure (caps, structure);
+ g_value_unset (&formats);
+ }
+ if (coding == DC1394_COLOR_CODING_MONO8 ||
+ coding == DC1394_COLOR_CODING_RAW8) {
+ g_value_init (&formats, GST_TYPE_LIST);
+ g_value_init (&format, G_TYPE_STRING);
+ g_value_set_static_string (&format, "bggr");
+ gst_value_list_append_value (&formats, &format);
+ g_value_set_static_string (&format, "rggb");
+ gst_value_list_append_value (&formats, &format);
+ g_value_set_static_string (&format, "grbg");
+ gst_value_list_append_value (&formats, &format);
+ g_value_set_static_string (&format, "gbrg");
+ gst_value_list_append_value (&formats, &format);
+ structure = gst_structure_new_empty ("video/x-bayer");
+ gst_structure_set_value (structure, "format", &formats);
+ gst_caps_append_structure (caps, structure);
+ g_value_unset (&format);
+ g_value_unset (&formats);
+ }
+ }
- i = 0;
- while (status == DC1394_OFF && i++ < 5) {
- g_usleep (50000);
- if (dc1394_video_get_transmission (src->camera,
- &status) != DC1394_SUCCESS) {
- if (status == DC1394_OFF) {
- GST_LOG_OBJECT (src, "camera is still off , retrying");
- }
+ if (width_min == width_max) {
+ g_value_init (&widths, G_TYPE_INT);
+ g_value_set_int (&widths, width_min);
+ } else if (width_step == 1) {
+ g_value_init (&widths, GST_TYPE_INT_RANGE);
+ gst_value_set_int_range (&widths, width_min, width_max);
+ } else {
+ g_value_init (&widths, GST_TYPE_LIST);
+ g_value_init (&width, G_TYPE_INT);
+ for (uint32_t w = width_min; w <= width_max; w += width_step) {
+ g_value_set_int (&width, w);
+ gst_value_list_append_value (&widths, &width);
+ }
+ g_value_unset (&width);
+ }
+ if (height_min == height_max) {
+ g_value_init (&heights, G_TYPE_INT);
+ g_value_set_int (&heights, height_min);
+ } else if (height_step == 1) {
+ g_value_init (&heights, GST_TYPE_INT_RANGE);
+ gst_value_set_int_range (&heights, height_min, height_max);
+ } else {
+ g_value_init (&heights, GST_TYPE_LIST);
+ g_value_init (&height, G_TYPE_INT);
+ for (uint32_t h = height_min; h <= height_max; h += height_step) {
+ g_value_set_int (&height, h);
+ gst_value_list_append_value (&heights, &height);
+ }
+ g_value_unset (&height);
+ }
+ gst_caps_set_value (caps, "width", &widths);
+ gst_caps_set_value (caps, "height", &heights);
+ g_value_unset (&widths);
+ g_value_unset (&heights);
+
+ if (supported_rates) {
+ g_value_init (&framerates, GST_TYPE_LIST);
+ g_value_init (&framerate, GST_TYPE_FRACTION);
+ for (guint r = 0; r < supported_rates->num; r++) {
+ rate = supported_rates->framerates[r];
+ switch (rate) {
+ case DC1394_FRAMERATE_1_875:
+ gst_value_set_fraction (&framerate, 240, 128);
+ break;
+ case DC1394_FRAMERATE_3_75:
+ gst_value_set_fraction (&framerate, 240, 64);
+ break;
+ case DC1394_FRAMERATE_7_5:
+ gst_value_set_fraction (&framerate, 240, 32);
+ break;
+ case DC1394_FRAMERATE_15:
+ gst_value_set_fraction (&framerate, 240, 16);
+ break;
+ case DC1394_FRAMERATE_30:
+ gst_value_set_fraction (&framerate, 240, 8);
+ break;
+ case DC1394_FRAMERATE_60:
+ gst_value_set_fraction (&framerate, 240, 4);
+ break;
+ case DC1394_FRAMERATE_120:
+ gst_value_set_fraction (&framerate, 240, 2);
+ break;
+ case DC1394_FRAMERATE_240:
+ gst_value_set_fraction (&framerate, 240, 1);
+ break;
}
+ gst_value_list_append_value (&framerates, &framerate);
}
+ g_value_unset (&framerate);
+ } else {
+ g_value_init (&framerates, GST_TYPE_FRACTION_RANGE);
+ gst_value_set_fraction_range_full (&framerates, 1, G_MAXINT, G_MAXINT, 1);
+ }
+ gst_caps_set_value (caps, "framerate", &framerates);
+ g_value_unset (&framerates);
+ return caps;
+}
- if (i == 5) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
- ("Camera doesn't seem to want to turn on!"),
- ("Camera doesn't seem to want to turn on!"));
- return FALSE;
- }
- GST_LOG_OBJECT (src, "got transmision status ON");
+static gboolean
+gst_dc1394_parse_caps (const GstCaps * caps,
+ dc1394color_codings_t * color_codings,
+ dc1394framerate_t * rate, double *rate_decimal,
+ uint32_t * width, uint32_t * height)
+{
+ const GstStructure *structure;
+ const gchar *format;
+ gint w, h, num, den;
+ gdouble dec;
+ structure = gst_caps_get_structure (caps, 0);
+ if (!structure)
+ goto error;
+
+ if (!width) {
+ } else if (!gst_structure_get_int (structure, "width", &w)) {
+ goto error;
} else {
+ *width = w;
+ }
- if (dc1394_video_set_transmission (src->camera,
- DC1394_OFF) != DC1394_SUCCESS) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Unable to stop transmision"),
- ("Unable to stop transmision"));
- return FALSE;
- }
+ if (!height) {
+ } else if (!gst_structure_get_int (structure, "height", &h)) {
+ goto error;
+ } else {
+ *height = h;
+ }
- GST_LOG_OBJECT (src, "Stopping capture");
+ if (!(rate || rate_decimal)) {
+ } else if (!gst_structure_get_fraction (structure, "framerate", &num, &den)) {
+ goto error;
+ } else if (gst_util_fraction_compare (num, den, 240, 128) <= 0) {
+ *rate = DC1394_FRAMERATE_1_875;
+ } else if (gst_util_fraction_compare (num, den, 240, 64) <= 0) {
+ *rate = DC1394_FRAMERATE_3_75;
+ } else if (gst_util_fraction_compare (num, den, 240, 32) <= 0) {
+ *rate = DC1394_FRAMERATE_7_5;
+ } else if (gst_util_fraction_compare (num, den, 240, 16) <= 0) {
+ *rate = DC1394_FRAMERATE_15;
+ } else if (gst_util_fraction_compare (num, den, 240, 8) <= 0) {
+ *rate = DC1394_FRAMERATE_30;
+ } else if (gst_util_fraction_compare (num, den, 240, 4) <= 0) {
+ *rate = DC1394_FRAMERATE_60;
+ } else if (gst_util_fraction_compare (num, den, 240, 2) <= 0) {
+ *rate = DC1394_FRAMERATE_120;
+ } else if (gst_util_fraction_compare (num, den, 240, 1) <= 0) {
+ *rate = DC1394_FRAMERATE_240;
+ } else {
+ *rate = DC1394_FRAMERATE_240;
+ }
+ if (rate_decimal) {
+ gst_util_fraction_to_double (num, den, &dec);
+ *rate_decimal = dec;
+ }
- err = dc1394_capture_stop (src->camera);
- if (err > 0) {
- GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Capture stop error : %d ",
- err), ("Capture stop error : %d ", err));
- return FALSE;
- } else {
- GST_LOG_OBJECT (src, "Capture stoped successfully");
+ if (!color_codings) {
+ } else if (gst_structure_has_name (structure, "video/x-raw")) {
+ format = gst_structure_get_string (structure, "format");
+ switch (gst_video_format_from_string (format)) {
+ case GST_VIDEO_FORMAT_GRAY8:
+ color_codings->num = 1;
+ color_codings->codings[0] = DC1394_COLOR_CODING_MONO8;
+ break;
+ case GST_VIDEO_FORMAT_IYU1:
+ color_codings->num = 1;
+ color_codings->codings[0] = DC1394_COLOR_CODING_YUV411;
+ break;
+ case GST_VIDEO_FORMAT_UYVY:
+ color_codings->num = 1;
+ color_codings->codings[0] = DC1394_COLOR_CODING_YUV422;
+ break;
+ case GST_VIDEO_FORMAT_IYU2:
+ color_codings->num = 1;
+ color_codings->codings[0] = DC1394_COLOR_CODING_YUV444;
+ break;
+ case GST_VIDEO_FORMAT_RGB:
+ color_codings->num = 1;
+ color_codings->codings[0] = DC1394_COLOR_CODING_RGB8;
+ break;
+ case GST_VIDEO_FORMAT_GRAY16_BE:
+ color_codings->num = 1;
+ color_codings->codings[0] = DC1394_COLOR_CODING_MONO16;
+ break;
+ /*
+ * The following formats do not exist in Gstreamer:
+ *case GST_VIDEO_FORMAT_RGB48: // Unsigned RGB format 16 bits per channel
+ * color_codings->num = 1
+ * color_codings->codings[0] = DC1394_COLOR_CODING_RGB16;
+ * break;
+ *case GST_VIDEO_FORMAT_GRAY16_BE_SIGNED: // Signed grayscale format 16 bits
+ * color_codings->num = 1
+ * color_codings->codings[0] = DC1394_COLOR_CODING_MONO16S;
+ * break;
+ *case GST_VIDEO_FORMAT_RGB48_SIGNED: // Signed RGB format 16 bits per channel
+ * color_codings->num = 1
+ * color_codings->codings[0] = DC1394_COLOR_CODING_RGB16S;
+ * break;
+ */
+ default:
+ GST_ERROR ("unsupported raw video format %s", format);
+ goto error;
}
+ } else if (gst_structure_has_name (structure, "video/x-bayer")) {
+ /*
+ * The following formats do not exist in Gstreamer:
+ *switch (gst_bayer_format_from_string(format)) {
+ * case GST_BAYER_FORMAT_BGGR8:
+ * case GST_BAYER_FORMAT_GBRG8:
+ * case GST_BAYER_FORMAT_GRBG8:
+ * case GST_BAYER_FORMAT_BGGR8:
+ * *coding = DC1394_COLOR_CODING_RAW8;
+ * break;
+ * case GST_BAYER_FORMAT_BGGR16_BE:
+ * case GST_BAYER_FORMAT_GBRG16_BE:
+ * case GST_BAYER_FORMAT_GRBG16_BE:
+ * case GST_BAYER_FORMAT_BGGR16_BE:
+ * *coding = DC1394_COLOR_CODING_RAW16;
+ * break;
+ * default:
+ * GST_ERROR("unsupported raw video format %s", format);
+ * goto error;
+ *}
+ */
+ color_codings->num = 2;
+ color_codings->codings[0] = DC1394_COLOR_CODING_RAW8;
+ color_codings->codings[1] = DC1394_COLOR_CODING_MONO8;
+ } else {
+ goto error;
}
return TRUE;
+
+error:
+ return FALSE;
}
return gst_element_register (plugin, "dc1394src", GST_RANK_NONE,
GST_TYPE_DC1394);
-
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
dc1394,
- "1394 IIDC Video Source",
+ "1394 IIDC video source",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
projects / platform / upstream / gstreamer.git / commitdiff