diff options
Diffstat (limited to 'sys/v4l2/v4l2_calls.c')
| -rw-r--r-- | sys/v4l2/v4l2_calls.c | 942 |
1 files changed, 456 insertions, 486 deletions
diff --git a/sys/v4l2/v4l2_calls.c b/sys/v4l2/v4l2_calls.c index f7c3d3a0..f75ea550 100644 --- a/sys/v4l2/v4l2_calls.c +++ b/sys/v4l2/v4l2_calls.c @@ -49,19 +49,19 @@ ******************************************************/ static gboolean -gst_v4l2_get_capabilities (GstV4l2Element *v4l2element) +gst_v4l2_get_capabilities (GstV4l2Element * v4l2element) { - DEBUG("getting capabilities"); - GST_V4L2_CHECK_OPEN(v4l2element); - - if (ioctl(v4l2element->video_fd, VIDIOC_QUERYCAP, &(v4l2element->vcap)) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Error getting %s capabilities: %s", - v4l2element->device, g_strerror(errno))); - return FALSE; - } + DEBUG ("getting capabilities"); + GST_V4L2_CHECK_OPEN (v4l2element); + + if (ioctl (v4l2element->video_fd, VIDIOC_QUERYCAP, &(v4l2element->vcap)) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Error getting %s capabilities: %s", + v4l2element->device, g_strerror (errno))); + return FALSE; + } - return TRUE; + return TRUE; } @@ -72,288 +72,269 @@ gst_v4l2_get_capabilities (GstV4l2Element *v4l2element) ******************************************************/ static gboolean -gst_v4l2_fill_lists (GstV4l2Element *v4l2element) +gst_v4l2_fill_lists (GstV4l2Element * v4l2element) { - gint n; - const GList *pads = - gst_element_get_pad_list (GST_ELEMENT (v4l2element)); - GstPadDirection dir = GST_PAD_UNKNOWN; - - DEBUG("getting enumerations"); - GST_V4L2_CHECK_OPEN(v4l2element); - - /* sinks have outputs, all others have inputs */ - if (pads && g_list_length ((GList *) pads) == 1) - dir = GST_PAD_DIRECTION (GST_PAD (pads->data)); - - if (dir != GST_PAD_SINK) { - /* and now, the inputs */ - for (n=0;;n++) { - struct v4l2_input input; - GstV4l2TunerChannel *v4l2channel; - GstTunerChannel *channel; - - input.index = n; - if (ioctl(v4l2element->video_fd, VIDIOC_ENUMINPUT, - &input) < 0) { - if (errno == EINVAL) - break; /* end of enumeration */ - else { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to get %d in input enumeration for %s: %s", - n, v4l2element->device, - g_strerror (errno))); - return FALSE; - } - } - - v4l2channel = - g_object_new(GST_TYPE_V4L2_TUNER_CHANNEL, NULL); - channel = GST_TUNER_CHANNEL(v4l2channel); - channel->label = g_strdup(input.name); - channel->flags = GST_TUNER_CHANNEL_INPUT; - v4l2channel->index = n; - if (input.type == V4L2_INPUT_TYPE_TUNER) { - struct v4l2_tuner vtun; - - v4l2channel->tuner = input.tuner; - channel->flags |= GST_TUNER_CHANNEL_FREQUENCY; - - vtun.index = input.tuner; - if (ioctl(v4l2element->video_fd, VIDIOC_G_TUNER, - &vtun) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to get tuner %d settings on %s: %s", - input.tuner, - v4l2element->device, - g_strerror (errno))); - g_object_unref(G_OBJECT(channel)); - return FALSE; - } - channel->min_frequency = vtun.rangelow; - channel->max_frequency = vtun.rangehigh; - channel->min_signal = 0; - channel->max_signal = 0xffff; - } - if (input.audioset) { - /* we take the first. We don't care for - * the others for now */ - while (!(input.audioset & - (1<<v4l2channel->audio))) - v4l2channel->audio++; - channel->flags |= GST_TUNER_CHANNEL_AUDIO; - } - - v4l2element->channels = - g_list_append(v4l2element->channels, - (gpointer) channel); - } - } else { - /* outputs */ - for (n=0;;n++) { - struct v4l2_output output; - GstV4l2TunerChannel *v4l2channel; - GstTunerChannel *channel; - - output.index = n; - if (ioctl(v4l2element->video_fd, VIDIOC_ENUMOUTPUT, - &output) < 0) { - if (errno == EINVAL) - break; /* end of enumeration */ - else { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to get %d in output enumeration for %s: %s", - n, v4l2element->device, - g_strerror (errno))); - return FALSE; - } - } - - v4l2channel = g_object_new(GST_TYPE_V4L2_TUNER_CHANNEL, NULL); - channel = GST_TUNER_CHANNEL(v4l2channel); - channel->label = g_strdup(output.name); - channel->flags = GST_TUNER_CHANNEL_OUTPUT; - v4l2channel->index = n; - if (output.audioset) { - /* we take the first. We don't care for - * the others for now */ - while (!(output.audioset & - (1<<v4l2channel->audio))) - v4l2channel->audio++; - channel->flags |= GST_TUNER_CHANNEL_AUDIO; - } - - v4l2element->channels = - g_list_append(v4l2element->channels, - (gpointer) channel); - } + gint n; + const GList *pads = gst_element_get_pad_list (GST_ELEMENT (v4l2element)); + GstPadDirection dir = GST_PAD_UNKNOWN; + + DEBUG ("getting enumerations"); + GST_V4L2_CHECK_OPEN (v4l2element); + + /* sinks have outputs, all others have inputs */ + if (pads && g_list_length ((GList *) pads) == 1) + dir = GST_PAD_DIRECTION (GST_PAD (pads->data)); + + if (dir != GST_PAD_SINK) { + /* and now, the inputs */ + for (n = 0;; n++) { + struct v4l2_input input; + GstV4l2TunerChannel *v4l2channel; + GstTunerChannel *channel; + + input.index = n; + if (ioctl (v4l2element->video_fd, VIDIOC_ENUMINPUT, &input) < 0) { + if (errno == EINVAL) + break; /* end of enumeration */ + else { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to get %d in input enumeration for %s: %s", + n, v4l2element->device, g_strerror (errno))); + return FALSE; } - - /* norms... */ - for (n=0;;n++) { - struct v4l2_standard standard; - GstV4l2TunerNorm *v4l2norm; - GstTunerNorm *norm; - - standard.index = n; - if (ioctl(v4l2element->video_fd, VIDIOC_ENUMSTD, &standard) < 0) { - if (errno == EINVAL) - break; /* end of enumeration */ - else { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to get %d in norm enumeration for %s: %s", - n, v4l2element->device, - g_strerror (errno))); - return FALSE; - } - } - - v4l2norm = g_object_new(GST_TYPE_V4L2_TUNER_NORM, NULL); - norm = GST_TUNER_NORM (v4l2norm); - norm->label = g_strdup(standard.name); - norm->fps = (gfloat) standard.frameperiod.denominator / - standard.frameperiod.numerator; - v4l2norm->index = standard.id; - - v4l2element->norms = g_list_append(v4l2element->norms, - (gpointer) norm); + } + + v4l2channel = g_object_new (GST_TYPE_V4L2_TUNER_CHANNEL, NULL); + channel = GST_TUNER_CHANNEL (v4l2channel); + channel->label = g_strdup (input.name); + channel->flags = GST_TUNER_CHANNEL_INPUT; + v4l2channel->index = n; + if (input.type == V4L2_INPUT_TYPE_TUNER) { + struct v4l2_tuner vtun; + + v4l2channel->tuner = input.tuner; + channel->flags |= GST_TUNER_CHANNEL_FREQUENCY; + + vtun.index = input.tuner; + if (ioctl (v4l2element->video_fd, VIDIOC_G_TUNER, &vtun) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to get tuner %d settings on %s: %s", + input.tuner, v4l2element->device, g_strerror (errno))); + g_object_unref (G_OBJECT (channel)); + return FALSE; + } + channel->min_frequency = vtun.rangelow; + channel->max_frequency = vtun.rangehigh; + channel->min_signal = 0; + channel->max_signal = 0xffff; + } + if (input.audioset) { + /* we take the first. We don't care for + * the others for now */ + while (!(input.audioset & (1 << v4l2channel->audio))) + v4l2channel->audio++; + channel->flags |= GST_TUNER_CHANNEL_AUDIO; + } + + v4l2element->channels = + g_list_append (v4l2element->channels, (gpointer) channel); + } + } else { + /* outputs */ + for (n = 0;; n++) { + struct v4l2_output output; + GstV4l2TunerChannel *v4l2channel; + GstTunerChannel *channel; + + output.index = n; + if (ioctl (v4l2element->video_fd, VIDIOC_ENUMOUTPUT, &output) < 0) { + if (errno == EINVAL) + break; /* end of enumeration */ + else { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to get %d in output enumeration for %s: %s", + n, v4l2element->device, g_strerror (errno))); + return FALSE; } + } + + v4l2channel = g_object_new (GST_TYPE_V4L2_TUNER_CHANNEL, NULL); + channel = GST_TUNER_CHANNEL (v4l2channel); + channel->label = g_strdup (output.name); + channel->flags = GST_TUNER_CHANNEL_OUTPUT; + v4l2channel->index = n; + if (output.audioset) { + /* we take the first. We don't care for + * the others for now */ + while (!(output.audioset & (1 << v4l2channel->audio))) + v4l2channel->audio++; + channel->flags |= GST_TUNER_CHANNEL_AUDIO; + } + + v4l2element->channels = + g_list_append (v4l2element->channels, (gpointer) channel); + } + } - /* and lastly, controls+menus (if appropriate) */ - for (n=V4L2_CID_BASE;;n++) { - struct v4l2_queryctrl control; - GstV4l2ColorBalanceChannel *v4l2channel; - GstColorBalanceChannel *channel; - - /* hacky... */ - if (n == V4L2_CID_LASTP1) - n = V4L2_CID_PRIVATE_BASE; - - control.id = n; - if (ioctl(v4l2element->video_fd, VIDIOC_QUERYCTRL, &control) < 0) { - if (errno == EINVAL) { - if (n < V4L2_CID_PRIVATE_BASE) - continue; - else - break; - } else { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to get %d in control enumeration for %s: %s", - n, v4l2element->device, - g_strerror (errno))); - return FALSE; - } - } - if (control.flags & V4L2_CTRL_FLAG_DISABLED) - continue; - - switch (n) { - case V4L2_CID_BRIGHTNESS: - case V4L2_CID_CONTRAST: - case V4L2_CID_SATURATION: - case V4L2_CID_HUE: - case V4L2_CID_BLACK_LEVEL: - case V4L2_CID_AUTO_WHITE_BALANCE: - case V4L2_CID_DO_WHITE_BALANCE: - case V4L2_CID_RED_BALANCE: - case V4L2_CID_BLUE_BALANCE: - case V4L2_CID_GAMMA: - case V4L2_CID_EXPOSURE: - case V4L2_CID_AUTOGAIN: - case V4L2_CID_GAIN: - /* we only handle these for now */ - break; - default: - DEBUG("ControlID %s (%d) unhandled, FIXME", - control.name, n); - control.id++; - break; - } - if (n != control.id) - continue; - - v4l2channel = g_object_new(GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL, - NULL); - channel = GST_COLOR_BALANCE_CHANNEL(v4l2channel); - channel->label = g_strdup(control.name); - v4l2channel->index = n; + /* norms... */ + for (n = 0;; n++) { + struct v4l2_standard standard; + GstV4l2TunerNorm *v4l2norm; + GstTunerNorm *norm; + + standard.index = n; + if (ioctl (v4l2element->video_fd, VIDIOC_ENUMSTD, &standard) < 0) { + if (errno == EINVAL) + break; /* end of enumeration */ + else { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to get %d in norm enumeration for %s: %s", + n, v4l2element->device, g_strerror (errno))); + return FALSE; + } + } + + v4l2norm = g_object_new (GST_TYPE_V4L2_TUNER_NORM, NULL); + norm = GST_TUNER_NORM (v4l2norm); + norm->label = g_strdup (standard.name); + norm->fps = (gfloat) standard.frameperiod.denominator / + standard.frameperiod.numerator; + v4l2norm->index = standard.id; + + v4l2element->norms = g_list_append (v4l2element->norms, (gpointer) norm); + } + + /* and lastly, controls+menus (if appropriate) */ + for (n = V4L2_CID_BASE;; n++) { + struct v4l2_queryctrl control; + GstV4l2ColorBalanceChannel *v4l2channel; + GstColorBalanceChannel *channel; + + /* hacky... */ + if (n == V4L2_CID_LASTP1) + n = V4L2_CID_PRIVATE_BASE; + + control.id = n; + if (ioctl (v4l2element->video_fd, VIDIOC_QUERYCTRL, &control) < 0) { + if (errno == EINVAL) { + if (n < V4L2_CID_PRIVATE_BASE) + continue; + else + break; + } else { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to get %d in control enumeration for %s: %s", + n, v4l2element->device, g_strerror (errno))); + return FALSE; + } + } + if (control.flags & V4L2_CTRL_FLAG_DISABLED) + continue; + + switch (n) { + case V4L2_CID_BRIGHTNESS: + case V4L2_CID_CONTRAST: + case V4L2_CID_SATURATION: + case V4L2_CID_HUE: + case V4L2_CID_BLACK_LEVEL: + case V4L2_CID_AUTO_WHITE_BALANCE: + case V4L2_CID_DO_WHITE_BALANCE: + case V4L2_CID_RED_BALANCE: + case V4L2_CID_BLUE_BALANCE: + case V4L2_CID_GAMMA: + case V4L2_CID_EXPOSURE: + case V4L2_CID_AUTOGAIN: + case V4L2_CID_GAIN: + /* we only handle these for now */ + break; + default: + DEBUG ("ControlID %s (%d) unhandled, FIXME", control.name, n); + control.id++; + break; + } + if (n != control.id) + continue; + + v4l2channel = g_object_new (GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL, NULL); + channel = GST_COLOR_BALANCE_CHANNEL (v4l2channel); + channel->label = g_strdup (control.name); + v4l2channel->index = n; #if 0 - if (control.type == V4L2_CTRL_TYPE_MENU) { - struct v4l2_querymenu menu, *mptr; - int i; - menu.id = n; - for (i=0;;i++) { - menu.index = i; - if (ioctl(v4l2element->video_fd, VIDIOC_QUERYMENU, &menu) < 0) { - if (errno == EINVAL) - break; /* end of enumeration */ - else { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to get %d in menu enumeration for %s: %s", - n, v4l2element->device, - g_strerror (errno))); - return FALSE; - } - } - mptr = g_malloc(sizeof(menu)); - memcpy(mptr, &menu, sizeof(menu)); - menus = g_list_append(menus, mptr); - } - } - v4l2element->menus = g_list_append(v4l2element->menus, menus); + if (control.type == V4L2_CTRL_TYPE_MENU) { + struct v4l2_querymenu menu, *mptr; + int i; + + menu.id = n; + for (i = 0;; i++) { + menu.index = i; + if (ioctl (v4l2element->video_fd, VIDIOC_QUERYMENU, &menu) < 0) { + if (errno == EINVAL) + break; /* end of enumeration */ + else { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to get %d in menu enumeration for %s: %s", + n, v4l2element->device, g_strerror (errno))); + return FALSE; + } + } + mptr = g_malloc (sizeof (menu)); + memcpy (mptr, &menu, sizeof (menu)); + menus = g_list_append (menus, mptr); + } + } + v4l2element->menus = g_list_append (v4l2element->menus, menus); #endif - switch (control.type) { - case V4L2_CTRL_TYPE_INTEGER: - channel->min_value = control.minimum; - channel->max_value = control.maximum; - break; - case V4L2_CTRL_TYPE_BOOLEAN: - channel->min_value = FALSE; - channel->max_value = TRUE; - break; - default: - channel->min_value = - channel->max_value = 0; - break; - } - - v4l2element->colors = g_list_append(v4l2element->colors, - (gpointer) channel); - } + switch (control.type) { + case V4L2_CTRL_TYPE_INTEGER: + channel->min_value = control.minimum; + channel->max_value = control.maximum; + break; + case V4L2_CTRL_TYPE_BOOLEAN: + channel->min_value = FALSE; + channel->max_value = TRUE; + break; + default: + channel->min_value = channel->max_value = 0; + break; + } - return TRUE; + v4l2element->colors = g_list_append (v4l2element->colors, + (gpointer) channel); + } + + return TRUE; } static void -gst_v4l2_empty_lists (GstV4l2Element *v4l2element) +gst_v4l2_empty_lists (GstV4l2Element * v4l2element) { - DEBUG("deleting enumerations"); + DEBUG ("deleting enumerations"); - g_list_foreach (v4l2element->channels, (GFunc) g_object_unref, NULL); - g_list_free (v4l2element->channels); - v4l2element->channels = NULL; + g_list_foreach (v4l2element->channels, (GFunc) g_object_unref, NULL); + g_list_free (v4l2element->channels); + v4l2element->channels = NULL; - g_list_foreach (v4l2element->norms, (GFunc) g_object_unref, NULL); - g_list_free (v4l2element->norms); - v4l2element->norms = NULL; + g_list_foreach (v4l2element->norms, (GFunc) g_object_unref, NULL); + g_list_free (v4l2element->norms); + v4l2element->norms = NULL; - g_list_foreach (v4l2element->colors, (GFunc) g_object_unref, NULL); - g_list_free (v4l2element->colors); - v4l2element->colors = NULL; + g_list_foreach (v4l2element->colors, (GFunc) g_object_unref, NULL); + g_list_free (v4l2element->colors); + v4l2element->colors = NULL; } /* FIXME: move this stuff to gstv4l2tuner.c? */ static void -gst_v4l2_set_defaults (GstV4l2Element *v4l2element) +gst_v4l2_set_defaults (GstV4l2Element * v4l2element) { GstTunerNorm *norm = NULL; GstTunerChannel *channel = NULL; GstTuner *tuner = GST_TUNER (v4l2element); - + if (v4l2element->norm) norm = gst_tuner_find_norm_by_name (tuner, v4l2element->norm); if (norm) { @@ -362,18 +343,19 @@ gst_v4l2_set_defaults (GstV4l2Element *v4l2element) norm = GST_TUNER_NORM (gst_tuner_get_norm (GST_TUNER (v4l2element))); v4l2element->norm = g_strdup (norm->label); gst_tuner_norm_changed (tuner, norm); - g_object_notify (G_OBJECT (v4l2element), "norm"); + g_object_notify (G_OBJECT (v4l2element), "norm"); } - - if (v4l2element->channel) + + if (v4l2element->channel) channel = gst_tuner_find_channel_by_name (tuner, v4l2element->channel); if (channel) { gst_tuner_set_channel (tuner, channel); } else { - channel = GST_TUNER_CHANNEL (gst_tuner_get_channel (GST_TUNER (v4l2element))); + channel = + GST_TUNER_CHANNEL (gst_tuner_get_channel (GST_TUNER (v4l2element))); v4l2element->channel = g_strdup (channel->label); gst_tuner_channel_changed (tuner, channel); - g_object_notify (G_OBJECT (v4l2element), "channel"); + g_object_notify (G_OBJECT (v4l2element), "channel"); } if (v4l2element->frequency != 0) { gst_tuner_set_frequency (tuner, channel, v4l2element->frequency); @@ -396,61 +378,61 @@ gst_v4l2_set_defaults (GstV4l2Element *v4l2element) ******************************************************/ gboolean -gst_v4l2_open (GstV4l2Element *v4l2element) +gst_v4l2_open (GstV4l2Element * v4l2element) { - DEBUG("Trying to open device %s", v4l2element->device); - GST_V4L2_CHECK_NOT_OPEN(v4l2element); - GST_V4L2_CHECK_NOT_ACTIVE(v4l2element); - - /* be sure we have a device */ - if (!v4l2element->device) - v4l2element->device = g_strdup("/dev/video"); - - /* open the device */ - v4l2element->video_fd = open(v4l2element->device, O_RDWR); - if (!GST_V4L2_IS_OPEN(v4l2element)) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, OPEN_READ_WRITE, - (_("Could not open device \"%s\" for reading and writing."), v4l2element->device), - GST_ERROR_SYSTEM); - goto error; - } + DEBUG ("Trying to open device %s", v4l2element->device); + GST_V4L2_CHECK_NOT_OPEN (v4l2element); + GST_V4L2_CHECK_NOT_ACTIVE (v4l2element); + + /* be sure we have a device */ + if (!v4l2element->device) + v4l2element->device = g_strdup ("/dev/video"); + + /* open the device */ + v4l2element->video_fd = open (v4l2element->device, O_RDWR); + if (!GST_V4L2_IS_OPEN (v4l2element)) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, OPEN_READ_WRITE, + (_("Could not open device \"%s\" for reading and writing."), + v4l2element->device), GST_ERROR_SYSTEM); + goto error; + } - /* get capabilities */ - if (!gst_v4l2_get_capabilities(v4l2element)) { - goto error; - } + /* get capabilities */ + if (!gst_v4l2_get_capabilities (v4l2element)) { + goto error; + } - /* do we need to be a capture device? */ - if (GST_IS_V4L2SRC(v4l2element) && - !(v4l2element->vcap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, NOT_FOUND, - (_("Device \"%s\" is not a capture device."), v4l2element->device), - ("Capabilities: 0x%x", v4l2element->vcap.capabilities)); - goto error; - } + /* do we need to be a capture device? */ + if (GST_IS_V4L2SRC (v4l2element) && + !(v4l2element->vcap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, NOT_FOUND, + (_("Device \"%s\" is not a capture device."), v4l2element->device), + ("Capabilities: 0x%x", v4l2element->vcap.capabilities)); + goto error; + } - /* create enumerations */ - if (!gst_v4l2_fill_lists(v4l2element)) - goto error; + /* create enumerations */ + if (!gst_v4l2_fill_lists (v4l2element)) + goto error; - /* set defaults */ - gst_v4l2_set_defaults (v4l2element); + /* set defaults */ + gst_v4l2_set_defaults (v4l2element); - GST_INFO_OBJECT (v4l2element, "Opened device '%s' (%s) successfully\n", - v4l2element->vcap.card, v4l2element->device); + GST_INFO_OBJECT (v4l2element, "Opened device '%s' (%s) successfully\n", + v4l2element->vcap.card, v4l2element->device); - return TRUE; + return TRUE; error: - if (GST_V4L2_IS_OPEN(v4l2element)) { - /* close device */ - close(v4l2element->video_fd); - v4l2element->video_fd = -1; - } - /* empty lists */ - gst_v4l2_empty_lists(v4l2element); + if (GST_V4L2_IS_OPEN (v4l2element)) { + /* close device */ + close (v4l2element->video_fd); + v4l2element->video_fd = -1; + } + /* empty lists */ + gst_v4l2_empty_lists (v4l2element); - return FALSE; + return FALSE; } @@ -461,20 +443,20 @@ error: ******************************************************/ gboolean -gst_v4l2_close (GstV4l2Element *v4l2element) +gst_v4l2_close (GstV4l2Element * v4l2element) { - DEBUG("Trying to close %s", v4l2element->device); - GST_V4L2_CHECK_OPEN(v4l2element); - GST_V4L2_CHECK_NOT_ACTIVE(v4l2element); + DEBUG ("Trying to close %s", v4l2element->device); + GST_V4L2_CHECK_OPEN (v4l2element); + GST_V4L2_CHECK_NOT_ACTIVE (v4l2element); - /* close device */ - close(v4l2element->video_fd); - v4l2element->video_fd = -1; + /* close device */ + close (v4l2element->video_fd); + v4l2element->video_fd = -1; - /* empty lists */ - gst_v4l2_empty_lists(v4l2element); + /* empty lists */ + gst_v4l2_empty_lists (v4l2element); - return TRUE; + return TRUE; } @@ -485,20 +467,19 @@ gst_v4l2_close (GstV4l2Element *v4l2element) ******************************************************/ gboolean -gst_v4l2_get_norm (GstV4l2Element *v4l2element, - v4l2_std_id *norm) +gst_v4l2_get_norm (GstV4l2Element * v4l2element, v4l2_std_id * norm) { - DEBUG("getting norm"); - GST_V4L2_CHECK_OPEN(v4l2element); - - if (ioctl(v4l2element->video_fd, VIDIOC_G_STD, norm) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to get the current norm for device %s: %s", - v4l2element->device, g_strerror(errno))); - return FALSE; - } + DEBUG ("getting norm"); + GST_V4L2_CHECK_OPEN (v4l2element); + + if (ioctl (v4l2element->video_fd, VIDIOC_G_STD, norm) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to get the current norm for device %s: %s", + v4l2element->device, g_strerror (errno))); + return FALSE; + } - return TRUE; + return TRUE; } @@ -509,21 +490,20 @@ gst_v4l2_get_norm (GstV4l2Element *v4l2element, ******************************************************/ gboolean -gst_v4l2_set_norm (GstV4l2Element *v4l2element, - v4l2_std_id norm) +gst_v4l2_set_norm (GstV4l2Element * v4l2element, v4l2_std_id norm) { - DEBUG("trying to set norm to %llx", norm); - GST_V4L2_CHECK_OPEN(v4l2element); - GST_V4L2_CHECK_NOT_ACTIVE(v4l2element); - - if (ioctl(v4l2element->video_fd, VIDIOC_S_STD, &norm) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to set norm 0x%llx for device %s: %s", - norm, v4l2element->device, g_strerror(errno))); - return FALSE; - } + DEBUG ("trying to set norm to %llx", norm); + GST_V4L2_CHECK_OPEN (v4l2element); + GST_V4L2_CHECK_NOT_ACTIVE (v4l2element); + + if (ioctl (v4l2element->video_fd, VIDIOC_S_STD, &norm) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to set norm 0x%llx for device %s: %s", + norm, v4l2element->device, g_strerror (errno))); + return FALSE; + } - return TRUE; + return TRUE; } @@ -534,24 +514,23 @@ gst_v4l2_set_norm (GstV4l2Element *v4l2element, ******************************************************/ gboolean -gst_v4l2_get_input (GstV4l2Element *v4l2element, - gint *input) +gst_v4l2_get_input (GstV4l2Element * v4l2element, gint * input) { - gint n; + gint n; - DEBUG("trying to get input"); - GST_V4L2_CHECK_OPEN(v4l2element); + DEBUG ("trying to get input"); + GST_V4L2_CHECK_OPEN (v4l2element); - if (ioctl(v4l2element->video_fd, VIDIOC_G_INPUT, &n) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to get current input on device %s: %s", - v4l2element->device, g_strerror(errno))); - return FALSE; - } + if (ioctl (v4l2element->video_fd, VIDIOC_G_INPUT, &n) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to get current input on device %s: %s", + v4l2element->device, g_strerror (errno))); + return FALSE; + } - *input = n; + *input = n; - return TRUE; + return TRUE; } @@ -562,21 +541,20 @@ gst_v4l2_get_input (GstV4l2Element *v4l2element, ******************************************************/ gboolean -gst_v4l2_set_input (GstV4l2Element *v4l2element, - gint input) +gst_v4l2_set_input (GstV4l2Element * v4l2element, gint input) { - DEBUG("trying to set input to %d", input); - GST_V4L2_CHECK_OPEN(v4l2element); - GST_V4L2_CHECK_NOT_ACTIVE(v4l2element); - - if (ioctl(v4l2element->video_fd, VIDIOC_S_INPUT, &input) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to set input %d on device %s: %s", - input, v4l2element->device, g_strerror(errno))); - return FALSE; - } + DEBUG ("trying to set input to %d", input); + GST_V4L2_CHECK_OPEN (v4l2element); + GST_V4L2_CHECK_NOT_ACTIVE (v4l2element); + + if (ioctl (v4l2element->video_fd, VIDIOC_S_INPUT, &input) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to set input %d on device %s: %s", + input, v4l2element->device, g_strerror (errno))); + return FALSE; + } - return TRUE; + return TRUE; } @@ -587,24 +565,23 @@ gst_v4l2_set_input (GstV4l2Element *v4l2element, ******************************************************/ gboolean -gst_v4l2_get_output (GstV4l2Element *v4l2element, - gint *output) +gst_v4l2_get_output (GstV4l2Element * v4l2element, gint * output) { - gint n; + gint n; - DEBUG("trying to get output"); - GST_V4L2_CHECK_OPEN(v4l2element); + DEBUG ("trying to get output"); + GST_V4L2_CHECK_OPEN (v4l2element); - if (ioctl(v4l2element->video_fd, VIDIOC_G_OUTPUT, &n) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to get current output on device %s: %s", - v4l2element->device, g_strerror(errno))); - return FALSE; - } + if (ioctl (v4l2element->video_fd, VIDIOC_G_OUTPUT, &n) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to get current output on device %s: %s", + v4l2element->device, g_strerror (errno))); + return FALSE; + } - *output = n; + *output = n; - return TRUE; + return TRUE; } @@ -615,21 +592,20 @@ gst_v4l2_get_output (GstV4l2Element *v4l2element, ******************************************************/ gboolean -gst_v4l2_set_output (GstV4l2Element *v4l2element, - gint output) +gst_v4l2_set_output (GstV4l2Element * v4l2element, gint output) { - DEBUG("trying to set output to %d", output); - GST_V4L2_CHECK_OPEN(v4l2element); - GST_V4L2_CHECK_NOT_ACTIVE(v4l2element); - - if (ioctl(v4l2element->video_fd, VIDIOC_S_OUTPUT, &output) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to set output %d on device %s: %s", - output, v4l2element->device, g_strerror(errno))); - return FALSE; - } + DEBUG ("trying to set output to %d", output); + GST_V4L2_CHECK_OPEN (v4l2element); + GST_V4L2_CHECK_NOT_ACTIVE (v4l2element); + + if (ioctl (v4l2element->video_fd, VIDIOC_S_OUTPUT, &output) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to set output %d on device %s: %s", + output, v4l2element->device, g_strerror (errno))); + return FALSE; + } - return TRUE; + return TRUE; } @@ -640,26 +616,25 @@ gst_v4l2_set_output (GstV4l2Element *v4l2element, ******************************************************/ gboolean -gst_v4l2_get_frequency (GstV4l2Element *v4l2element, - gint tunernum, - gulong *frequency) +gst_v4l2_get_frequency (GstV4l2Element * v4l2element, + gint tunernum, gulong * frequency) { - struct v4l2_frequency freq; + struct v4l2_frequency freq; - DEBUG("getting current tuner frequency"); - GST_V4L2_CHECK_OPEN(v4l2element); + DEBUG ("getting current tuner frequency"); + GST_V4L2_CHECK_OPEN (v4l2element); - freq.tuner = tunernum; - if (ioctl(v4l2element->video_fd, VIDIOC_G_FREQUENCY, &freq) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to get current tuner frequency for device %s: %s", - v4l2element->device, g_strerror(errno))); - return FALSE; - } + freq.tuner = tunernum; + if (ioctl (v4l2element->video_fd, VIDIOC_G_FREQUENCY, &freq) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to get current tuner frequency for device %s: %s", + v4l2element->device, g_strerror (errno))); + return FALSE; + } - *frequency = freq.frequency; + *frequency = freq.frequency; - return TRUE; + return TRUE; } @@ -670,29 +645,28 @@ gst_v4l2_get_frequency (GstV4l2Element *v4l2element, ******************************************************/ gboolean -gst_v4l2_set_frequency (GstV4l2Element *v4l2element, - gint tunernum, - gulong frequency) +gst_v4l2_set_frequency (GstV4l2Element * v4l2element, + gint tunernum, gulong frequency) { - struct v4l2_frequency freq; - - DEBUG("setting current tuner frequency to %lu", frequency); - GST_V4L2_CHECK_OPEN(v4l2element); - GST_V4L2_CHECK_NOT_ACTIVE(v4l2element); - - freq.tuner = tunernum; - /* fill in type - ignore error */ - ioctl(v4l2element->video_fd, VIDIOC_G_FREQUENCY, &freq); - freq.frequency = frequency; - - if (ioctl(v4l2element->video_fd, VIDIOC_S_FREQUENCY, &freq) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to set tuner frequency to %lu for device %s: %s", - frequency, v4l2element->device, g_strerror(errno))); - return FALSE; - } + struct v4l2_frequency freq; + + DEBUG ("setting current tuner frequency to %lu", frequency); + GST_V4L2_CHECK_OPEN (v4l2element); + GST_V4L2_CHECK_NOT_ACTIVE (v4l2element); + + freq.tuner = tunernum; + /* fill in type - ignore error */ + ioctl (v4l2element->video_fd, VIDIOC_G_FREQUENCY, &freq); + freq.frequency = frequency; + + if (ioctl (v4l2element->video_fd, VIDIOC_S_FREQUENCY, &freq) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to set tuner frequency to %lu for device %s: %s", + frequency, v4l2element->device, g_strerror (errno))); + return FALSE; + } - return TRUE; + return TRUE; } @@ -703,26 +677,25 @@ gst_v4l2_set_frequency (GstV4l2Element *v4l2element, ******************************************************/ gboolean -gst_v4l2_signal_strength (GstV4l2Element *v4l2element, - gint tunernum, - gulong *signal_strength) +gst_v4l2_signal_strength (GstV4l2Element * v4l2element, + gint tunernum, gulong * signal_strength) { - struct v4l2_tuner tuner; + struct v4l2_tuner tuner; - DEBUG("trying to get signal strength"); - GST_V4L2_CHECK_OPEN(v4l2element); + DEBUG ("trying to get signal strength"); + GST_V4L2_CHECK_OPEN (v4l2element); - tuner.index = tunernum; - if (ioctl(v4l2element->video_fd, VIDIOC_G_TUNER, &tuner) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to get signal strength for device %s: %s", - v4l2element->device, g_strerror(errno))); - return FALSE; - } + tuner.index = tunernum; + if (ioctl (v4l2element->video_fd, VIDIOC_G_TUNER, &tuner) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to get signal strength for device %s: %s", + v4l2element->device, g_strerror (errno))); + return FALSE; + } - *signal_strength = tuner.signal; + *signal_strength = tuner.signal; - return TRUE; + return TRUE; } @@ -733,28 +706,27 @@ gst_v4l2_signal_strength (GstV4l2Element *v4l2element, ******************************************************/ gboolean -gst_v4l2_get_attribute (GstV4l2Element *v4l2element, - int attribute_num, - int *value) +gst_v4l2_get_attribute (GstV4l2Element * v4l2element, + int attribute_num, int *value) { - struct v4l2_control control; + struct v4l2_control control; - GST_V4L2_CHECK_OPEN(v4l2element); + GST_V4L2_CHECK_OPEN (v4l2element); - DEBUG("getting value of attribute %d", attribute_num); + DEBUG ("getting value of attribute %d", attribute_num); - control.id = attribute_num; + control.id = attribute_num; - if (ioctl(v4l2element->video_fd, VIDIOC_G_CTRL, &control) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to get value for control %d on device %s: %s", - attribute_num, v4l2element->device, g_strerror(errno))); - return FALSE; - } + if (ioctl (v4l2element->video_fd, VIDIOC_G_CTRL, &control) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to get value for control %d on device %s: %s", + attribute_num, v4l2element->device, g_strerror (errno))); + return FALSE; + } - *value = control.value; + *value = control.value; - return TRUE; + return TRUE; } @@ -765,26 +737,24 @@ gst_v4l2_get_attribute (GstV4l2Element *v4l2element, ******************************************************/ gboolean -gst_v4l2_set_attribute (GstV4l2Element *v4l2element, - int attribute_num, - const int value) +gst_v4l2_set_attribute (GstV4l2Element * v4l2element, + int attribute_num, const int value) { - struct v4l2_control control; + struct v4l2_control control; - GST_V4L2_CHECK_OPEN(v4l2element); + GST_V4L2_CHECK_OPEN (v4l2element); - DEBUG("setting value of attribute %d to %d", attribute_num, value); + DEBUG ("setting value of attribute %d to %d", attribute_num, value); - control.id = attribute_num; - control.value = value; + control.id = attribute_num; + control.value = value; - if (ioctl(v4l2element->video_fd, VIDIOC_S_CTRL, &control) < 0) { - GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), - ("Failed to set value %d for control %d on device %s: %s", - value, attribute_num, v4l2element->device, g_strerror(errno))); - return FALSE; - } + if (ioctl (v4l2element->video_fd, VIDIOC_S_CTRL, &control) < 0) { + GST_ELEMENT_ERROR (v4l2element, RESOURCE, SETTINGS, (NULL), + ("Failed to set value %d for control %d on device %s: %s", + value, attribute_num, v4l2element->device, g_strerror (errno))); + return FALSE; + } - return TRUE; + return TRUE; } - |