diff options
Diffstat (limited to 'sys/v4l2')
| -rw-r--r-- | sys/v4l2/gstv4l2element.c | 188 | ||||
| -rw-r--r-- | sys/v4l2/gstv4l2element.h | 5 | ||||
| -rw-r--r-- | sys/v4l2/gstv4l2src.c | 1248 | ||||
| -rw-r--r-- | sys/v4l2/gstv4l2src.h | 45 | ||||
| -rw-r--r-- | sys/v4l2/gstv4l2tuner.c | 32 | ||||
| -rw-r--r-- | sys/v4l2/v4l2_calls.c | 48 | ||||
| -rw-r--r-- | sys/v4l2/v4l2src_calls.c | 612 | ||||
| -rw-r--r-- | sys/v4l2/v4l2src_calls.h | 17 |
8 files changed, 1098 insertions, 1097 deletions
diff --git a/sys/v4l2/gstv4l2element.c b/sys/v4l2/gstv4l2element.c index d99f6d6d..eb12501d 100644 --- a/sys/v4l2/gstv4l2element.c +++ b/sys/v4l2/gstv4l2element.c @@ -43,17 +43,20 @@ static GstElementDetails gst_v4l2element_details = { /* V4l2Element signals and args */ enum { - /* FILL ME */ - SIGNAL_OPEN, - SIGNAL_CLOSE, - LAST_SIGNAL + /* FILL ME */ + SIGNAL_OPEN, + SIGNAL_CLOSE, + LAST_SIGNAL }; enum { - ARG_0, - ARG_DEVICE, - ARG_DEVICE_NAME, - ARG_FLAGS + ARG_0, + ARG_DEVICE, + ARG_DEVICE_NAME, + ARG_NORM, + ARG_CHANNEL, + ARG_FREQUENCY, + ARG_FLAGS }; @@ -378,41 +381,47 @@ gst_v4l2element_base_init (GstV4l2ElementClass *klass) static void gst_v4l2element_class_init (GstV4l2ElementClass *klass) { - GObjectClass *gobject_class; - GstElementClass *gstelement_class; - - gobject_class = (GObjectClass*)klass; - gstelement_class = (GstElementClass*)klass; - - parent_class = g_type_class_ref(GST_TYPE_ELEMENT); - - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE, - g_param_spec_string("device", "Device", "Device location", - NULL, G_PARAM_READWRITE)); - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE_NAME, - g_param_spec_string("device_name", "Device name", - "Name of the device", NULL, G_PARAM_READABLE)); - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FLAGS, - g_param_spec_flags("flags", "Flags", "Device type flags", - GST_TYPE_V4L2_DEVICE_FLAGS, 0, G_PARAM_READABLE)); - - /* signals */ - gst_v4l2element_signals[SIGNAL_OPEN] = - g_signal_new("open", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET(GstV4l2ElementClass, open), - NULL, NULL, g_cclosure_marshal_VOID__STRING, - G_TYPE_NONE, 1, G_TYPE_STRING); - gst_v4l2element_signals[SIGNAL_CLOSE] = - g_signal_new("close", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET(GstV4l2ElementClass, close), - NULL, NULL, g_cclosure_marshal_VOID__STRING, - G_TYPE_NONE, 1, G_TYPE_STRING); - - gobject_class->set_property = gst_v4l2element_set_property; - gobject_class->get_property = gst_v4l2element_get_property; - gobject_class->dispose = gst_v4l2element_dispose; - - gstelement_class->change_state = gst_v4l2element_change_state; + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass); + + parent_class = g_type_class_peek_parent (klass); + + g_object_class_install_property(gobject_class, ARG_DEVICE, + g_param_spec_string("device", "Device", "Device location", + NULL, G_PARAM_READWRITE)); + g_object_class_install_property(gobject_class, ARG_DEVICE_NAME, + g_param_spec_string("device_name", "Device name", + "Name of the device", NULL, G_PARAM_READABLE)); + g_object_class_install_property(gobject_class, ARG_FLAGS, + g_param_spec_flags("flags", "Flags", "Device type flags", + GST_TYPE_V4L2_DEVICE_FLAGS, 0, G_PARAM_READABLE)); + g_object_class_install_property(gobject_class, ARG_NORM, + g_param_spec_string("norm", "norm", + "Norm to use", NULL, G_PARAM_READWRITE)); + g_object_class_install_property(gobject_class, ARG_CHANNEL, + g_param_spec_string("channel", "channel", + "input/output to switch to", NULL, G_PARAM_READWRITE)); + g_object_class_install_property(gobject_class, ARG_FREQUENCY, + g_param_spec_ulong ("frequency", "frequency", + "frequency to tune to", 0, G_MAXULONG, 0, G_PARAM_READWRITE)); + + /* signals */ + gst_v4l2element_signals[SIGNAL_OPEN] = + g_signal_new("open", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET(GstV4l2ElementClass, open), + NULL, NULL, g_cclosure_marshal_VOID__STRING, + G_TYPE_NONE, 1, G_TYPE_STRING); + gst_v4l2element_signals[SIGNAL_CLOSE] = + g_signal_new("close", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET(GstV4l2ElementClass, close), + NULL, NULL, g_cclosure_marshal_VOID__STRING, + G_TYPE_NONE, 1, G_TYPE_STRING); + + gobject_class->set_property = gst_v4l2element_set_property; + gobject_class->get_property = gst_v4l2element_get_property; + gobject_class->dispose = gst_v4l2element_dispose; + + gstelement_class->change_state = gst_v4l2element_change_state; } @@ -446,10 +455,13 @@ gst_v4l2element_dispose (GObject *object) g_free (v4l2element->display); } - if (v4l2element->device) { - g_free (v4l2element->device); - } - + g_free (v4l2element->device); + v4l2element->device = NULL; + g_free (v4l2element->norm); + v4l2element->norm = NULL; + g_free (v4l2element->channel); + v4l2element->channel = NULL; + if (((GObjectClass *) parent_class)->dispose) ((GObjectClass *) parent_class)->dispose(object); } @@ -460,24 +472,63 @@ gst_v4l2element_set_property (GObject *object, const GValue *value, GParamSpec *pspec) { - GstV4l2Element *v4l2element; - - /* it's not null if we got it, but it might not be ours */ - g_return_if_fail(GST_IS_V4L2ELEMENT(object)); - v4l2element = GST_V4L2ELEMENT(object); - - switch (prop_id) { - case ARG_DEVICE: - if (!GST_V4L2_IS_OPEN(v4l2element)) { - if (v4l2element->device) - g_free(v4l2element->device); - v4l2element->device = g_strdup(g_value_get_string(value)); - } - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; + GstV4l2Element *v4l2element; + GstTuner *tuner; + + /* it's not null if we got it, but it might not be ours */ + g_return_if_fail (GST_IS_V4L2ELEMENT (object)); + v4l2element = GST_V4L2ELEMENT (object); + /* stupid GstInterface */ + tuner = (GstTuner *) object; + + switch (prop_id) { + case ARG_DEVICE: + if (!GST_V4L2_IS_OPEN(v4l2element)) { + if (v4l2element->device) + g_free(v4l2element->device); + v4l2element->device = g_value_dup_string(value); + } + break; + case ARG_NORM: + if (GST_V4L2_IS_OPEN(v4l2element)) { + GstTunerNorm *norm = gst_tuner_get_norm (tuner); + if (norm) { + gst_tuner_set_norm (tuner, norm); } + } else { + g_free (v4l2element->norm); + v4l2element->norm = g_value_dup_string (value); + g_object_notify (object, "norm"); + } + break; + case ARG_CHANNEL: + if (GST_V4L2_IS_OPEN(v4l2element)) { + GstTunerChannel *channel = gst_tuner_get_channel (tuner); + if (channel) { + gst_tuner_set_channel (tuner, channel); + } + } else { + g_free (v4l2element->channel); + v4l2element->channel = g_value_dup_string (value); + g_object_notify (object, "channel"); + } + break; + case ARG_FREQUENCY: + if (GST_V4L2_IS_OPEN(v4l2element)) { + GstTunerChannel *channel; + if (!v4l2element->channel) return; + channel = gst_tuner_get_channel (tuner); + g_assert (channel); + gst_tuner_set_frequency (tuner, channel, g_value_get_ulong (value)); + } else { + v4l2element->frequency = g_value_get_ulong (value); + g_object_notify (object, "frequency"); + } + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } } @@ -513,6 +564,15 @@ gst_v4l2element_get_property (GObject *object, g_value_set_flags(value, flags); break; } + case ARG_NORM: + g_value_set_string (value, v4l2element->norm); + break; + case ARG_CHANNEL: + g_value_set_string (value, v4l2element->channel); + break; + case ARG_FREQUENCY: + g_value_set_ulong (value, v4l2element->frequency); + break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec); break; diff --git a/sys/v4l2/gstv4l2element.h b/sys/v4l2/gstv4l2element.h index a57f66f0..e46b2440 100644 --- a/sys/v4l2/gstv4l2element.h +++ b/sys/v4l2/gstv4l2element.h @@ -82,6 +82,11 @@ struct _GstV4l2Element { GstXWindowListener *overlay; XID xwindow_id; + /* properties */ + gchar *norm; + gchar *channel; + gulong frequency; + /* caching values */ gchar *display; }; diff --git a/sys/v4l2/gstv4l2src.c b/sys/v4l2/gstv4l2src.c index 0c275b2c..edce2091 100644 --- a/sys/v4l2/gstv4l2src.c +++ b/sys/v4l2/gstv4l2src.c @@ -26,6 +26,9 @@ #include "v4l2src_calls.h" #include "gstv4l2tuner.h" +GST_DEBUG_CATEGORY (v4l2src_debug); +#define GST_CAT_DEFAULT v4l2src_debug + /* elementfactory details */ static GstElementDetails gst_v4l2src_details = { "Video (video4linux2) Source", @@ -51,15 +54,50 @@ enum { ARG_USE_FIXED_FPS }; +guint32 gst_v4l2_formats[] = { + /* from Linux 2.6.0 videodev2.h */ + V4L2_PIX_FMT_RGB332, /* 8 RGB-3-3-2 */ + V4L2_PIX_FMT_RGB555, /* 16 RGB-5-5-5 */ + V4L2_PIX_FMT_RGB565, /* 16 RGB-5-6-5 */ + V4L2_PIX_FMT_RGB555X, /* 16 RGB-5-5-5 BE */ + V4L2_PIX_FMT_RGB565X, /* 16 RGB-5-6-5 BE */ + V4L2_PIX_FMT_BGR24, /* 24 BGR-8-8-8 */ + V4L2_PIX_FMT_RGB24, /* 24 RGB-8-8-8 */ + V4L2_PIX_FMT_BGR32, /* 32 BGR-8-8-8-8 */ + V4L2_PIX_FMT_RGB32, /* 32 RGB-8-8-8-8 */ + V4L2_PIX_FMT_GREY, /* 8 Greyscale */ + V4L2_PIX_FMT_YVU410, /* 9 YVU 4:1:0 */ + V4L2_PIX_FMT_YVU420, /* 12 YVU 4:2:0 */ + V4L2_PIX_FMT_YUYV, /* 16 YUV 4:2:2 */ + V4L2_PIX_FMT_UYVY, /* 16 YUV 4:2:2 */ + V4L2_PIX_FMT_YUV422P, /* 16 YVU422 planar */ + V4L2_PIX_FMT_YUV411P, /* 16 YVU411 planar */ + V4L2_PIX_FMT_Y41P, /* 12 YUV 4:1:1 */ + V4L2_PIX_FMT_NV12, /* 12 Y/CbCr 4:2:0 */ + V4L2_PIX_FMT_NV21, /* 12 Y/CrCb 4:2:0 */ + V4L2_PIX_FMT_YUV410, /* 9 YUV 4:1:0 */ + V4L2_PIX_FMT_YUV420, /* 12 YUV 4:2:0 */ + V4L2_PIX_FMT_YYUV, /* 16 YUV 4:2:2 */ + V4L2_PIX_FMT_HI240, /* 8 8-bit color */ + V4L2_PIX_FMT_MJPEG, /* Motion-JPEG */ + V4L2_PIX_FMT_JPEG, /* JFIF JPEG */ + V4L2_PIX_FMT_DV, /* 1394 */ + V4L2_PIX_FMT_MPEG, /* MPEG */ + V4L2_PIX_FMT_WNVA /* Winnov hw compres */ +}; +#define GST_V4L2_FORMAT_COUNT (G_N_ELEMENTS (gst_v4l2_formats)) + GST_FORMATS_FUNCTION (GstPad *, gst_v4l2src_get_formats, GST_FORMAT_TIME, GST_FORMAT_DEFAULT); GST_QUERY_TYPE_FUNCTION (GstPad *, gst_v4l2src_get_query_types, GST_QUERY_POSITION); /* init functions */ -static void gst_v4l2src_class_init (GstV4l2SrcClass *klass); -static void gst_v4l2src_base_init (GstV4l2SrcClass *klass); -static void gst_v4l2src_init (GstV4l2Src *v4l2src); +static void gst_v4l2src_class_init (gpointer g_class, + gpointer class_data); +static void gst_v4l2src_base_init (gpointer g_class); +static void gst_v4l2src_init (GTypeInstance * instance, + gpointer g_class); /* signal functions */ static void gst_v4l2src_open (GstElement *element, @@ -68,9 +106,12 @@ static void gst_v4l2src_close (GstElement *element, const gchar *device); /* pad/buffer functions */ -static GstPadLinkReturn gst_v4l2src_srcconnect (GstPad *pad, +static const GstCaps * gst_v4l2src_get_all_caps (void); +static GstPadLinkReturn gst_v4l2src_link (GstPad *pad, const GstCaps *caps); static GstCaps * gst_v4l2src_getcaps (GstPad *pad); +static GstCaps * gst_v4l2src_fixate (GstPad * pad, + const GstCaps * caps); static GstData * gst_v4l2src_get (GstPad *pad); static gboolean gst_v4l2src_src_convert (GstPad *pad, GstFormat src_format, @@ -100,8 +141,6 @@ static GstElementStateReturn static void gst_v4l2src_set_clock (GstElement *element, GstClock *clock); -static GstPadTemplate *src_template; - static GstElementClass *parent_class = NULL; static guint gst_v4l2src_signals[LAST_SIGNAL] = { 0 }; @@ -109,133 +148,127 @@ static guint gst_v4l2src_signals[LAST_SIGNAL] = { 0 }; GType gst_v4l2src_get_type (void) { - static GType v4l2src_type = 0; - - if (!v4l2src_type) { - static const GTypeInfo v4l2src_info = { - sizeof(GstV4l2SrcClass), - (GBaseInitFunc) gst_v4l2src_base_init, - NULL, - (GClassInitFunc) gst_v4l2src_class_init, - NULL, - NULL, - sizeof(GstV4l2Src), - 0, - (GInstanceInitFunc) gst_v4l2src_init, - NULL - }; - v4l2src_type = g_type_register_static(GST_TYPE_V4L2ELEMENT, - "GstV4l2Src", &v4l2src_info, 0); - } - return v4l2src_type; + static GType v4l2src_type = 0; + + if (!v4l2src_type) { + static const GTypeInfo v4l2src_info = { + sizeof (GstV4l2SrcClass), + gst_v4l2src_base_init, + NULL, + gst_v4l2src_class_init, + NULL, + NULL, + sizeof (GstV4l2Src), + 0, + gst_v4l2src_init, + NULL + }; + v4l2src_type = g_type_register_static(GST_TYPE_V4L2ELEMENT, + "GstV4l2Src", &v4l2src_info, 0); + GST_DEBUG_CATEGORY_INIT (v4l2src_debug, "v4l2src", 0, "v4l2src element"); + } + return v4l2src_type; } static void -gst_v4l2src_base_init (GstV4l2SrcClass *klass) +gst_v4l2src_base_init (gpointer g_class) { - GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass); + GstPadTemplate *template; + GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class); - gst_element_class_set_details (gstelement_class, - &gst_v4l2src_details); + gst_element_class_set_details (gstelement_class, &gst_v4l2src_details); - src_template = gst_pad_template_new ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - NULL); + template = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, + gst_caps_copy (gst_v4l2src_get_all_caps ())); - gst_element_class_add_pad_template (gstelement_class, src_template); + gst_element_class_add_pad_template (gstelement_class, template); } static void -gst_v4l2src_class_init (GstV4l2SrcClass *klass) +gst_v4l2src_class_init (gpointer g_class, gpointer class_data) { - GObjectClass *gobject_class; - GstElementClass *gstelement_class; - GstV4l2ElementClass *v4l2_class; - - gobject_class = (GObjectClass*)klass; - gstelement_class = (GstElementClass*)klass; - v4l2_class = (GstV4l2ElementClass*)klass; - - parent_class = g_type_class_ref(GST_TYPE_V4L2ELEMENT); - - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NUMBUFS, - g_param_spec_int("num_buffers","num_buffers","num_buffers", - G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BUFSIZE, - g_param_spec_int("buffer_size","buffer_size","buffer_size", - G_MININT,G_MAXINT,0,G_PARAM_READABLE)); - - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_USE_FIXED_FPS, - g_param_spec_boolean("use_fixed_fps", "Use Fixed FPS", - "Drop/Insert frames to reach a certain FPS (TRUE) " - "or adapt FPS to suit the number of frabbed frames", - TRUE, G_PARAM_READWRITE)); - - /* signals */ - gst_v4l2src_signals[SIGNAL_FRAME_CAPTURE] = - g_signal_new("frame_capture", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET(GstV4l2SrcClass, frame_capture), - NULL, NULL, g_cclosure_marshal_VOID__VOID, - G_TYPE_NONE, 0); - gst_v4l2src_signals[SIGNAL_FRAME_DROP] = - g_signal_new("frame_drop", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET(GstV4l2SrcClass, frame_drop), - NULL, NULL, g_cclosure_marshal_VOID__VOID, - G_TYPE_NONE, 0); - gst_v4l2src_signals[SIGNAL_FRAME_INSERT] = - g_signal_new("frame_insert", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET(GstV4l2SrcClass, frame_insert), - NULL, NULL, g_cclosure_marshal_VOID__VOID, - G_TYPE_NONE, 0); - gst_v4l2src_signals[SIGNAL_FRAME_LOST] = - g_signal_new("frame_lost", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET(GstV4l2SrcClass, frame_lost), - NULL, NULL, g_cclosure_marshal_VOID__INT, - G_TYPE_NONE, 1, G_TYPE_INT); - - - gobject_class->set_property = gst_v4l2src_set_property; - gobject_class->get_property = gst_v4l2src_get_property; - - gstelement_class->change_state = gst_v4l2src_change_state; - - v4l2_class->open = gst_v4l2src_open; - v4l2_class->close = gst_v4l2src_close; - - gstelement_class->set_clock = gst_v4l2src_set_clock; + GObjectClass *gobject_class = G_OBJECT_CLASS (g_class); + GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class); + GstV4l2ElementClass *v4l2_class = GST_V4L2ELEMENT_CLASS (g_class); + + parent_class = g_type_class_peek_parent (g_class); + + gobject_class->set_property = gst_v4l2src_set_property; + gobject_class->get_property = gst_v4l2src_get_property; + + g_object_class_install_property(gobject_class, ARG_NUMBUFS, + g_param_spec_int("num_buffers","num_buffers","num_buffers", + G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); + g_object_class_install_property(gobject_class, ARG_BUFSIZE, + g_param_spec_int("buffer_size","buffer_size","buffer_size", + G_MININT,G_MAXINT,0,G_PARAM_READABLE)); + + g_object_class_install_property(gobject_class, ARG_USE_FIXED_FPS, + g_param_spec_boolean("use_fixed_fps", "Use Fixed FPS", + "Drop/Insert frames to reach a certain FPS (TRUE) " + "or adapt FPS to suit the number of frabbed frames", + TRUE, G_PARAM_READWRITE)); + + /* signals */ + gst_v4l2src_signals[SIGNAL_FRAME_CAPTURE] = + g_signal_new("frame_capture", G_TYPE_FROM_CLASS (g_class), G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET(GstV4l2SrcClass, frame_capture), + NULL, NULL, g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + gst_v4l2src_signals[SIGNAL_FRAME_DROP] = + g_signal_new("frame_drop", G_TYPE_FROM_CLASS (g_class), G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET(GstV4l2SrcClass, frame_drop), + NULL, NULL, g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + gst_v4l2src_signals[SIGNAL_FRAME_INSERT] = + g_signal_new("frame_insert", G_TYPE_FROM_CLASS (g_class), G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET(GstV4l2SrcClass, frame_insert), + NULL, NULL, g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + gst_v4l2src_signals[SIGNAL_FRAME_LOST] = + g_signal_new("frame_lost", G_TYPE_FROM_CLASS (g_class), G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET(GstV4l2SrcClass, frame_lost), + NULL, NULL, g_cclosure_marshal_VOID__INT, + G_TYPE_NONE, 1, G_TYPE_INT); + + gstelement_class->change_state = gst_v4l2src_change_state; + + v4l2_class->open = gst_v4l2src_open; + v4l2_class->close = gst_v4l2src_close; + + gstelement_class->set_clock = gst_v4l2src_set_clock; } static void -gst_v4l2src_init (GstV4l2Src *v4l2src) +gst_v4l2src_init (GTypeInstance *instance, gpointer g_class) { - GST_FLAG_SET(GST_ELEMENT(v4l2src), GST_ELEMENT_THREAD_SUGGESTED); + GstV4l2Src *v4l2src = GST_V4L2SRC (instance); + + GST_FLAG_SET(GST_ELEMENT(v4l2src), GST_ELEMENT_THREAD_SUGGESTED); - v4l2src->srcpad = gst_pad_new_from_template(src_template, "src"); - gst_element_add_pad(GST_ELEMENT(v4l2src), v4l2src->srcpad); + v4l2src->srcpad = gst_pad_new_from_template( + gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (v4l2src), "src"), "src"); + gst_element_add_pad(GST_ELEMENT(v4l2src), v4l2src->srcpad); - gst_pad_set_get_function(v4l2src->srcpad, gst_v4l2src_get); - gst_pad_set_link_function(v4l2src->srcpad, gst_v4l2src_srcconnect); - gst_pad_set_getcaps_function (v4l2src->srcpad, gst_v4l2src_getcaps); - gst_pad_set_convert_function (v4l2src->srcpad, gst_v4l2src_src_convert); - gst_pad_set_formats_function (v4l2src->srcpad, - gst_v4l2src_get_formats); - gst_pad_set_query_function (v4l2src->srcpad, - gst_v4l2src_src_query); - gst_pad_set_query_type_function (v4l2src->srcpad, - gst_v4l2src_get_query_types); + gst_pad_set_get_function(v4l2src->srcpad, gst_v4l2src_get); + gst_pad_set_link_function(v4l2src->srcpad, gst_v4l2src_link); + gst_pad_set_getcaps_function (v4l2src->srcpad, gst_v4l2src_getcaps); + gst_pad_set_fixate_function (v4l2src->srcpad, gst_v4l2src_fixate); + gst_pad_set_convert_function (v4l2src->srcpad, gst_v4l2src_src_convert); + gst_pad_set_formats_function (v4l2src->srcpad, gst_v4l2src_get_formats); + gst_pad_set_query_function (v4l2src->srcpad, gst_v4l2src_src_query); + gst_pad_set_query_type_function (v4l2src->srcpad, gst_v4l2src_get_query_types); - v4l2src->breq.count = 0; + v4l2src->breq.count = 0; - v4l2src->formats = NULL; - v4l2src->format_list = NULL; + v4l2src->formats = NULL; - /* no clock */ - v4l2src->clock = NULL; + /* no clock */ + v4l2src->clock = NULL; - /* fps */ - v4l2src->use_fixed_fps = TRUE; + /* fps */ + v4l2src->use_fixed_fps = TRUE; } @@ -243,7 +276,7 @@ static void gst_v4l2src_open (GstElement *element, const gchar *device) { - gst_v4l2src_fill_format_list(GST_V4L2SRC(element)); + gst_v4l2src_fill_format_list (GST_V4L2SRC (element)); } @@ -251,7 +284,7 @@ static void gst_v4l2src_close (GstElement *element, const gchar *device) { - gst_v4l2src_empty_format_list(GST_V4L2SRC(element)); + gst_v4l2src_clear_format_list (GST_V4L2SRC (element)); } @@ -365,173 +398,154 @@ gst_v4l2src_src_query (GstPad *pad, return res; } - static GstStructure * -gst_v4l2src_v4l2fourcc_to_caps (guint32 fourcc, - gboolean compressed) +gst_v4l2src_v4l2fourcc_to_caps (guint32 fourcc) { - GstStructure *structure; + GstStructure *structure = NULL; - switch (fourcc) { - case V4L2_PIX_FMT_MJPEG: /* Motion-JPEG */ - case V4L2_PIX_FMT_JPEG: /* JFIF JPEG */ - structure = gst_structure_new ("video/x-jpeg", NULL); - break; + switch (fourcc) { + case V4L2_PIX_FMT_MJPEG: /* Motion-JPEG */ + case V4L2_PIX_FMT_JPEG: /* JFIF JPEG */ + structure = gst_structure_new ("video/x-jpeg", NULL); + break; + case V4L2_PIX_FMT_RGB332: + case V4L2_PIX_FMT_RGB555: + case V4L2_PIX_FMT_RGB555X: + case V4L2_PIX_FMT_RGB565: + case V4L2_PIX_FMT_RGB565X: + case V4L2_PIX_FMT_RGB24: + case V4L2_PIX_FMT_BGR24: + case V4L2_PIX_FMT_RGB32: + case V4L2_PIX_FMT_BGR32: { + guint depth=0, bpp=0; + gint endianness = 0; + guint32 r_mask = 0, b_mask = 0, g_mask = 0; + + switch (fourcc) { case V4L2_PIX_FMT_RGB332: + bpp = depth = 8; + endianness = G_BYTE_ORDER; /* 'like, whatever' */ + r_mask = 0xe0; g_mask = 0x1c; b_mask = 0x03; + break; case V4L2_PIX_FMT_RGB555: case V4L2_PIX_FMT_RGB555X: + bpp = 16; depth = 15; + endianness = fourcc == V4L2_PIX_FMT_RGB555X ? G_BIG_ENDIAN : G_LITTLE_ENDIAN; + r_mask = 0x7c00; + g_mask = 0x03e0; + b_mask = 0x001f; + break; case V4L2_PIX_FMT_RGB565: case V4L2_PIX_FMT_RGB565X: + bpp = depth = 16; + endianness = fourcc == V4L2_PIX_FMT_RGB565X ? G_BIG_ENDIAN : G_LITTLE_ENDIAN; + r_mask = 0xf800; + g_mask = 0x07e0; + b_mask = 0x001f; case V4L2_PIX_FMT_RGB24: + bpp = depth = 24; + endianness = G_BIG_ENDIAN; + r_mask = 0xff0000; + g_mask = 0x00ff00; + b_mask = 0x0000ff; + break; case V4L2_PIX_FMT_BGR24: + bpp = depth = 24; + endianness = G_BIG_ENDIAN; + r_mask = 0x0000ff; + g_mask = 0x00ff00; + b_mask = 0xff0000; + break; case V4L2_PIX_FMT_RGB32: - case V4L2_PIX_FMT_BGR32: { - guint depth=0, bpp=0; - gint endianness = 0; - guint32 r_mask = 0, b_mask = 0, g_mask = 0; - - switch (fourcc) { - case V4L2_PIX_FMT_RGB332: - bpp = depth = 8; - endianness = G_BYTE_ORDER; /* 'like, whatever' */ - r_mask = 0xe0; g_mask = 0x1c; b_mask = 0x03; - break; - case V4L2_PIX_FMT_RGB555: - case V4L2_PIX_FMT_RGB555X: - bpp = 16; depth = 15; - endianness = G_BYTE_ORDER; - if ((fourcc == V4L2_PIX_FMT_RGB555 && - G_BYTE_ORDER == G_LITTLE_ENDIAN) || - (fourcc == V4L2_PIX_FMT_RGB555X && - G_BYTE_ORDER == G_BIG_ENDIAN)) { - r_mask = 0x7c00; - g_mask = 0x03e0; - b_mask = 0x001f; - } else { - r_mask = 0x007c; - g_mask = 0xe003; - b_mask = 0x1f00; - } - break; - case V4L2_PIX_FMT_RGB565: - case V4L2_PIX_FMT_RGB565X: - bpp = depth = 16; - endianness = G_BYTE_ORDER; - if ((fourcc == V4L2_PIX_FMT_RGB565 && - G_BYTE_ORDER == G_LITTLE_ENDIAN) || - (fourcc == V4L2_PIX_FMT_RGB565X && - G_BYTE_ORDER == G_BIG_ENDIAN)) { - r_mask = 0xf800; - g_mask = 0x07e0; - b_mask = 0x001f; - } else { - r_mask = 0x00f8; - g_mask = 0xe007; - b_mask = 0x1f00; - } - break; - case V4L2_PIX_FMT_RGB24: - case V4L2_PIX_FMT_BGR24: - bpp = depth = 24; - endianness = G_BIG_ENDIAN; - if (fourcc == V4L2_PIX_FMT_RGB24) { - r_mask = 0xff0000; - g_mask = 0x00ff00; - b_mask = 0x0000ff; - } else { - r_mask = 0x0000ff; - g_mask = 0x00ff00; - b_mask = 0xff0000; - } - break; - case V4L2_PIX_FMT_RGB32: - case V4L2_PIX_FMT_BGR32: - bpp = depth = 32; - endianness = G_BIG_ENDIAN; - if (fourcc == V4L2_PIX_FMT_RGB32) { - r_mask = 0xff000000; - g_mask = 0x00ff0000; - b_mask = 0x0000ff00; - } else { - r_mask = 0x000000ff; - g_mask = 0x0000ff00; - b_mask = 0x00ff0000; - } - break; - default: - g_assert_not_reached(); - break; - } - - structure = gst_structure_new ("video/x-raw-rgb", - "bpp", G_TYPE_INT, bpp, - "depth", G_TYPE_INT, depth, - "red_mask", G_TYPE_INT, r_mask, - "green_mask", G_TYPE_INT, g_mask, - "blue_mask", G_TYPE_INT, b_mask, - "endianness", G_TYPE_INT, endianness, - NULL); - break; - } - case V4L2_PIX_FMT_YUV420: /* I420/IYUV */ + bpp = depth = 32; + endianness = G_BIG_ENDIAN; + r_mask = 0xff000000; + g_mask = 0x00ff0000; + b_mask = 0x0000ff00; + break; + case V4L2_PIX_FMT_BGR32: + bpp = depth = 32; + endianness = G_BIG_ENDIAN; + r_mask = 0x000000ff; + g_mask = 0x0000ff00; + b_mask = 0x00ff0000; + break; + default: + g_assert_not_reached(); + break; + } + structure = gst_structure_new ("video/x-raw-rgb", + "bpp", G_TYPE_INT, bpp, + "depth", G_TYPE_INT, depth, + "red_mask", G_TYPE_INT, r_mask, + "green_mask", G_TYPE_INT, g_mask, + "blue_mask", G_TYPE_INT, b_mask, + "endianness", G_TYPE_INT, endianness, + NULL); + break; + } + case V4L2_PIX_FMT_GREY: /* 8 Greyscale */ + case V4L2_PIX_FMT_YUV422P: /* 16 YVU422 planar */ + case V4L2_PIX_FMT_YUV411P: /* 16 YVU411 planar */ + case V4L2_PIX_FMT_NV12: /* 12 Y/CbCr 4:2:0 */ + case V4L2_PIX_FMT_NV21: /* 12 Y/CrCb 4:2:0 */ + case V4L2_PIX_FMT_YYUV: /* 16 YUV 4:2:2 */ + case V4L2_PIX_FMT_HI240: /* 8 8-bit color */ + /* FIXME: get correct fourccs here */ + break; + case V4L2_PIX_FMT_YVU410: + case V4L2_PIX_FMT_YUV410: + case V4L2_PIX_FMT_YUV420: /* I420/IYUV */ + case V4L2_PIX_FMT_YUYV: + case V4L2_PIX_FMT_YVU420: + case V4L2_PIX_FMT_UYVY: + case V4L2_PIX_FMT_Y41P: { + guint32 fcc = 0; + + switch (fourcc) { + case V4L2_PIX_FMT_YVU410: + fcc = GST_MAKE_FOURCC('Y','V','U','9'); + break; + case V4L2_PIX_FMT_YUV410: + fcc = GST_MAKE_FOURCC('Y','U','V','9'); + break; + case V4L2_PIX_FMT_YUV420: + fcc = GST_MAKE_FOURCC('I','4','2','0'); + break; case V4L2_PIX_FMT_YUYV: + fcc = GST_MAKE_FOURCC('Y','U','Y','2'); + break; case V4L2_PIX_FMT_YVU420: + fcc = GST_MAKE_FOURCC('Y','V','1','2'); + break; case V4L2_PIX_FMT_UYVY: - case V4L2_PIX_FMT_Y41P: { - guint32 fcc = 0; - - switch (fourcc) { - case V4L2_PIX_FMT_YUV420: - fcc = GST_MAKE_FOURCC('I','4','2','0'); - break; - case V4L2_PIX_FMT_YUYV: - fcc = GST_MAKE_FOURCC('Y','U','Y','2'); - break; - case V4L2_PIX_FMT_YVU420: - fcc = GST_MAKE_FOURCC('Y','V','1','2'); - break; - case V4L2_PIX_FMT_UYVY: - fcc = GST_MAKE_FOURCC('U','Y','V','Y'); - break; - case V4L2_PIX_FMT_Y41P: - fcc = GST_MAKE_FOURCC('Y','4','1','P'); - break; - default: - g_assert_not_reached(); - break; - } - - structure = gst_structure_new ("video/x-raw-yuv", - "format", GST_TYPE_FOURCC, fcc, - NULL); - break; - } + fcc = GST_MAKE_FOURCC('U','Y','V','Y'); + break; + case V4L2_PIX_FMT_Y41P: + fcc = GST_MAKE_FOURCC('Y','4','1','B'); + break; default: - GST_DEBUG ( - "Unknown fourcc 0x%08x " GST_FOURCC_FORMAT ", trying default", + g_assert_not_reached(); + break; + } + structure = gst_structure_new ("video/x-raw-yuv", + "format", GST_TYPE_FOURCC, fcc, + NULL); + break; + } + case V4L2_PIX_FMT_DV: + structure = gst_structure_new ("video/x-dv", "systemstream", G_TYPE_BOOLEAN, TRUE, NULL); + break; + case V4L2_PIX_FMT_MPEG: /* MPEG */ + /* someone figure out the MPEG format used... */ + break; + case V4L2_PIX_FMT_WNVA: /* Winnov hw compres */ + break; + default: + GST_DEBUG ("Unknown fourcc 0x%08x " GST_FOURCC_FORMAT, fourcc, GST_FOURCC_ARGS(fourcc)); - - /* add the standard one */ - if (compressed) { - guint32 print_format = GUINT32_FROM_LE(fourcc); - gchar *print_format_str = (gchar *) &print_format, *string_format; - gint i; - - for (i=0;i<4;i++) { - print_format_str[i] = - g_ascii_tolower(print_format_str[i]); - } - string_format = g_strdup_printf("video/%4.4s", - print_format_str); - structure = gst_structure_new (string_format, NULL); - g_free(string_format); - } else { - structure = gst_structure_new ("video/x-raw-yuv", - "format", GST_TYPE_FOURCC, fourcc, NULL); - } - break; - } - + break; + } #if 0 gst_caps_set_simple (caps, "width", G_TYPE_INT, width, @@ -539,351 +553,389 @@ gst_v4l2src_v4l2fourcc_to_caps (guint32 fourcc, "framerate", G_TYPE_DOUBLE, fps, NULL); #endif + return structure; +} + +static struct v4l2_fmtdesc * +gst_v4l2src_get_format_from_fourcc (GstV4l2Src *v4l2src, guint32 fourcc) +{ + struct v4l2_fmtdesc *fmt; + GSList *walk; + + if (fourcc == 0) + return NULL; + + walk = v4l2src->formats; + while (walk) { + fmt = (struct v4l2_fmtdesc *) walk->data; + if (fmt->pixelformat == fourcc) + return fmt; + /* special case for jpeg */ + if ((fmt->pixelformat == V4L2_PIX_FMT_MJPEG && fourcc == V4L2_PIX_FMT_JPEG) || + (fmt->pixelformat == V4L2_PIX_FMT_JPEG && fourcc == V4L2_PIX_FMT_MJPEG)) { + return fmt; + } + walk = g_slist_next (walk); + } - return structure; + return NULL; } -#define gst_v4l2src_v4l2fourcc_to_caps_fixed(f, width, height, fps, c) \ - gst_v4l2src_v4l2fourcc_to_caps(f, \ - gst_props_entry_new("width", \ - GST_PROPS_INT(width)), \ - gst_props_entry_new("height", \ - GST_PROPS_INT(height)), \ - gst_props_entry_new("framerate", \ - GST_PROPS_FLOAT(fps)), \ - c) - -#define gst_v4l2src_v4l2fourcc_to_caps_range(f, min_w, max_w, min_h, max_h, c) \ - gst_v4l2src_v4l2fourcc_to_caps(f, \ - gst_props_entry_new("width", \ - GST_PROPS_INT_RANGE(min_w, max_w)), \ - gst_props_entry_new("height", \ - GST_PROPS_INT_RANGE(min_h, max_h)), \ - gst_props_entry_new("framerate", \ - GST_PROPS_FLOAT_RANGE(0, G_MAXFLOAT)), \ - c) +static guint32 +gst_v4l2_fourcc_from_structure (GstStructure *structure) +{ + guint32 fourcc = 0; + const gchar *mimetype = gst_structure_get_name (structure); + + if (!strcmp(mimetype, "video/x-raw-yuv") || + !strcmp(mimetype, "video/x-raw-rgb")) { + if (!strcmp(mimetype, "video/x-raw-rgb")) + fourcc = GST_MAKE_FOURCC('R','G','B',' '); + else + gst_structure_get_fourcc (structure, "format", &fourcc); + + switch (fourcc) { + case GST_MAKE_FOURCC('I','4','2','0'): + case GST_MAKE_FOURCC('I','Y','U','V'): + fourcc = V4L2_PIX_FMT_YUV420; + break; + case GST_MAKE_FOURCC('Y','U','Y','2'): + fourcc = V4L2_PIX_FMT_YUYV; + break; + case GST_MAKE_FOURCC('Y','4','1','P'): + fourcc = V4L2_PIX_FMT_Y41P; + break; + case GST_MAKE_FOURCC('U','Y','V','Y'): + fourcc = V4L2_PIX_FMT_UYVY; + break; + case GST_MAKE_FOURCC('Y','V','1','2'): + fourcc = V4L2_PIX_FMT_YVU420; + break; + case GST_MAKE_FOURCC('R','G','B',' '): { + gint depth, endianness, r_mask; + + gst_structure_get_int (structure, "depth", &depth); + gst_structure_get_int (structure, "endianness", &endianness); + gst_structure_get_int (structure, "red_mask", &r_mask); + + switch (depth) { + case 8: + fourcc = V4L2_PIX_FMT_RGB332; + break; + case 15: + fourcc = (endianness == G_LITTLE_ENDIAN) ? + V4L2_PIX_FMT_RGB555 : + V4L2_PIX_FMT_RGB555X; + break; + case 16: + fourcc = (endianness == G_LITTLE_ENDIAN) ? + V4L2_PIX_FMT_RGB565 : + V4L2_PIX_FMT_RGB565X; + break; + case 24: + fourcc = (r_mask == 0xFF) ? + V4L2_PIX_FMT_BGR24 : + V4L2_PIX_FMT_RGB24; + break; + case 32: + fourcc = (r_mask == 0xFF) ? + V4L2_PIX_FMT_BGR32 : + V4L2_PIX_FMT_RGB32; + break; + } + default: + break; + } + } + } else if (strcmp (mimetype, "video/x-dv") == 0) { + fourcc = V4L2_PIX_FMT_DV; + } else if (strcmp (mimetype, "video/x-jpeg") == 0) { + fourcc = V4L2_PIX_FMT_JPEG; + } + + return fourcc; +} static struct v4l2_fmtdesc * -gst_v4l2_caps_to_v4l2fourcc (GstV4l2Src *v4l2src, - GstStructure *structure) +gst_v4l2_caps_to_v4l2fourcc (GstV4l2Src *v4l2src, GstStructure *structure) { - gint i; - guint32 fourcc = 0; - struct v4l2_fmtdesc *end_fmt = NULL; - const gchar *format = gst_structure_get_name (structure); - - if (!strcmp(format, "video/x-raw-yuv") || - !strcmp(format, "video/x-raw-rgb")) { - if (!strcmp(format, "video/x-raw-rgb")) - fourcc = GST_MAKE_FOURCC('R','G','B',' '); - else - gst_structure_get_fourcc (structure, "format", &fourcc); - - switch (fourcc) { - case GST_MAKE_FOURCC('I','4','2','0'): - case GST_MAKE_FOURCC('I','Y','U','V'): - fourcc = V4L2_PIX_FMT_YUV420; - break; - case GST_MAKE_FOURCC('Y','U','Y','2'): - fourcc = V4L2_PIX_FMT_YUYV; - break; - case GST_MAKE_FOURCC('Y','4','1','P'): - fourcc = V4L2_PIX_FMT_Y41P; - break; - case GST_MAKE_FOURCC('U','Y','V','Y'): - fourcc = V4L2_PIX_FMT_UYVY; - break; - case GST_MAKE_FOURCC('Y','V','1','2'): - fourcc = V4L2_PIX_FMT_YVU420; - break; - case GST_MAKE_FOURCC('R','G','B',' '): { - gint depth, endianness; - - gst_structure_get_int (structure, "depth", &depth); - gst_structure_get_int (structure, "endianness", &endianness); - - switch (depth) { - case 8: - fourcc = V4L2_PIX_FMT_RGB332; - break; - case 15: - fourcc = (endianness == G_LITTLE_ENDIAN) ? - V4L2_PIX_FMT_RGB555 : - V4L2_PIX_FMT_RGB555X; - break; - case 16: - fourcc = (endianness == G_LITTLE_ENDIAN) ? - V4L2_PIX_FMT_RGB565 : - V4L2_PIX_FMT_RGB565X; - break; - case 24: - fourcc = (endianness == G_LITTLE_ENDIAN) ? - V4L2_PIX_FMT_BGR24 : - V4L2_PIX_FMT_RGB24; - break; - case 32: - fourcc = (endianness == G_LITTLE_ENDIAN) ? - V4L2_PIX_FMT_BGR32 : - V4L2_PIX_FMT_RGB32; - break; - } - } - default: - break; - } - for (i=0;i<g_list_length(v4l2src->formats);i++) { - struct v4l2_fmtdesc *fmt; - fmt = (struct v4l2_fmtdesc *) - g_list_nth_data(v4l2src->formats, i); - if (fmt->pixelformat == fourcc) { - end_fmt = fmt; - break; - } - } - } else { - /* compressed */ - if (strncmp(format, "video/", 6)) - return NULL; - format = &format[6]; - if (strlen(format) != 4) - return NULL; - fourcc = GST_MAKE_FOURCC(g_ascii_toupper(format[0]), - g_ascii_toupper(format[1]), - g_ascii_toupper(format[2]), - g_ascii_toupper(format[3])); - - switch (fourcc) { - case GST_MAKE_FOURCC('J','P','E','G'): { - struct v4l2_fmtdesc *fmt; - for (i=0;i<g_list_length(v4l2src->formats);i++) { - fmt = g_list_nth_data(v4l2src->formats, i); - if (fmt->pixelformat == V4L2_PIX_FMT_MJPEG || - fmt->pixelformat == V4L2_PIX_FMT_JPEG) { - end_fmt = fmt; - break; - } - } - break; - } - default: { - /* FIXME: check for fourcc in list */ - struct v4l2_fmtdesc *fmt; - for (i=0;i<g_list_length(v4l2src->formats);i++) { - fmt = g_list_nth_data(v4l2src->formats, i); - if (fourcc == fmt->pixelformat) { - end_fmt = fmt; - break; - } - } - break; - } - } - } + return gst_v4l2src_get_format_from_fourcc (v4l2src, + gst_v4l2_fourcc_from_structure (structure)); +} + +static const GstCaps * +gst_v4l2src_get_all_caps (void) +{ + static GstCaps *caps = NULL; + + if (caps == NULL) { + GstStructure *structure; + guint i; + + caps = gst_caps_new_empty (); + for (i = 0; i < GST_V4L2_FORMAT_COUNT; i++) { + structure = gst_v4l2src_v4l2fourcc_to_caps (gst_v4l2_formats[i]); + if (structure) { + gst_structure_set (structure, + "width", GST_TYPE_INT_RANGE, 1, 4096, + "height", GST_TYPE_INT_RANGE, 1, 4096, + "framerate", GST_TYPE_DOUBLE_RANGE, (double) 0, G_MAXDOUBLE, + NULL); + + gst_caps_append_structure (caps, structure); + } + } + } - return end_fmt; + return caps; } -#define gst_caps_get_int_range(caps, name, min, max) \ - gst_props_entry_get_int_range(gst_props_get_entry((caps)->properties, \ - name), \ - min, max) +static GstCaps * +gst_v4l2src_fixate (GstPad *pad, const GstCaps *const_caps) +{ + gint i; + GstStructure *structure; + G_GNUC_UNUSED gchar *caps_str; + gboolean changed = FALSE; + GstCaps *caps = gst_caps_copy (const_caps); + + caps_str = gst_caps_to_string (caps); + GST_DEBUG_OBJECT (gst_pad_get_parent (pad), "fixating caps %s", caps_str); + g_free (caps_str); + + for (i = 0; i < gst_caps_get_size (caps); i++) { + structure = gst_caps_get_structure (caps, i); + changed |= gst_caps_structure_fixate_field_nearest_int (structure, "width", G_MAXINT); + } + if (changed) return caps; + for (i = 0; i < gst_caps_get_size (caps); i++) { + structure = gst_caps_get_structure (caps, i); + changed |= gst_caps_structure_fixate_field_nearest_int (structure, "height", G_MAXINT); + } + if (changed) return caps; + gst_caps_free (caps); + return NULL; +} static GstPadLinkReturn -gst_v4l2src_srcconnect (GstPad *pad, - const GstCaps *vscapslist) +gst_v4l2src_link (GstPad *pad, const GstCaps *caps) { - GstV4l2Src *v4l2src; - GstV4l2Element *v4l2element; - struct v4l2_fmtdesc *format; - int w, h; - GstStructure *structure; - - v4l2src = GST_V4L2SRC(gst_pad_get_parent (pad)); - v4l2element = GST_V4L2ELEMENT(v4l2src); - - structure = gst_caps_get_structure (vscapslist, 0); - - /* clean up if we still haven't cleaned up our previous - * capture session */ - if (GST_V4L2_IS_ACTIVE(v4l2element)) { - if (!gst_v4l2src_capture_deinit(v4l2src)) - return GST_PAD_LINK_REFUSED; - } else if (!GST_V4L2_IS_OPEN(v4l2element)) { - return GST_PAD_LINK_DELAYED; - } + GstV4l2Src *v4l2src; + GstV4l2Element *v4l2element; + struct v4l2_fmtdesc *format; + int w, h; + GstStructure *structure; + + v4l2src = GST_V4L2SRC(gst_pad_get_parent (pad)); + v4l2element = GST_V4L2ELEMENT(v4l2src); + + structure = gst_caps_get_structure (caps, 0); + + /* clean up if we still haven't cleaned up our previous + * capture session */ + if (GST_V4L2_IS_ACTIVE(v4l2element)) { + if (!gst_v4l2src_capture_deinit(v4l2src)) + return GST_PAD_LINK_REFUSED; + } else if (!GST_V4L2_IS_OPEN(v4l2element)) { + return GST_PAD_LINK_DELAYED; + } - /* we want our own v4l2 type of fourcc codes */ - if (!(format = gst_v4l2_caps_to_v4l2fourcc(v4l2src, structure))) { - return GST_PAD_LINK_REFUSED; - } + /* we want our own v4l2 type of fourcc codes */ + if (!(format = gst_v4l2_caps_to_v4l2fourcc(v4l2src, structure))) { + return GST_PAD_LINK_REFUSED; + } - gst_structure_get_int (structure, "width", &w); - gst_structure_get_int (structure, "height", &h); + gst_structure_get_int (structure, "width", &w); + gst_structure_get_int (structure, "height", &h); - /* we found the pixelformat! - try it out */ - if (gst_v4l2src_set_capture(v4l2src, format, w, h)) { - if (gst_v4l2src_capture_init(v4l2src)) { - return GST_PAD_LINK_OK; - } - } + /* we found the pixelformat! - try it out */ + if (gst_v4l2src_set_capture(v4l2src, format, w, h)) { + if (gst_v4l2src_capture_init(v4l2src)) { + return GST_PAD_LINK_OK; + } + } - return GST_PAD_LINK_REFUSED; + return GST_PAD_LINK_REFUSED; } static GstCaps * gst_v4l2src_getcaps (GstPad *pad) { - GstV4l2Src *v4l2src = GST_V4L2SRC(gst_pad_get_parent (pad)); - GstCaps *caps; - gint i; - struct v4l2_fmtdesc *format; - int min_w, max_w, min_h, max_h; - - if (!GST_V4L2_IS_OPEN(GST_V4L2ELEMENT(v4l2src))) { - return gst_caps_new_any (); - } - - /* build our own capslist */ - caps = gst_caps_new_empty(); - for (i=0;i<g_list_length(v4l2src->formats);i++) { - GstStructure *structure; - - format = g_list_nth_data(v4l2src->formats, i); - - /* get size delimiters */ - if (!gst_v4l2src_get_size_limits(v4l2src, format, - &min_w, &max_w, - &min_h, &max_h)) { - continue; - } - - /* add to list */ - structure = gst_v4l2src_v4l2fourcc_to_caps (format->pixelformat, - format->flags & V4L2_FMT_FLAG_COMPRESSED); - - gst_structure_set (structure, - "width", GST_TYPE_INT_RANGE, min_w, max_w, - "height", GST_TYPE_INT_RANGE, min_h, max_h, - "framerate", GST_TYPE_DOUBLE_RANGE, 0, G_MAXDOUBLE, - NULL); + GstV4l2Src *v4l2src = GST_V4L2SRC(gst_pad_get_parent (pad)); + GstCaps *caps; + struct v4l2_fmtdesc *format; + int min_w, max_w, min_h, max_h; + GSList *walk; + GstStructure *structure; + + if (!GST_V4L2_IS_OPEN(GST_V4L2ELEMENT(v4l2src))) { + return gst_caps_new_any (); + } - gst_caps_append_structure (caps, structure); - } + /* build our own capslist */ + caps = gst_caps_new_empty(); + walk = v4l2src->formats; + while (walk) { + format = (struct v4l2_fmtdesc *) walk->data; + walk = g_slist_next (walk); + + /* get size delimiters */ + if (!gst_v4l2src_get_size_limits(v4l2src, format, + &min_w, &max_w, &min_h, &max_h)) { + continue; + } + + /* add to list */ + structure = gst_v4l2src_v4l2fourcc_to_caps (format->pixelformat); + + if (structure) { + gst_structure_set (structure, + "width", GST_TYPE_INT_RANGE, min_w, max_w, + "height", GST_TYPE_INT_RANGE, min_h, max_h, + "framerate", GST_TYPE_DOUBLE_RANGE, (double) 0, G_MAXDOUBLE, + NULL); + + gst_caps_append_structure (caps, structure); + } + } - return caps; + return caps; } - static GstData* gst_v4l2src_get (GstPad *pad) { - GstV4l2Src *v4l2src; - GstBuffer *buf; - gint num; - gdouble fps = 0; + GstV4l2Src *v4l2src; + GstBuffer *buf; + gint i, num = -1; + gdouble fps = 0; - g_return_val_if_fail (pad != NULL, NULL); + v4l2src = GST_V4L2SRC (gst_pad_get_parent (pad)); - v4l2src = GST_V4L2SRC(gst_pad_get_parent (pad)); + if (v4l2src->use_fixed_fps && + (fps = gst_v4l2src_get_fps(v4l2src)) == 0) { + gst_element_error (GST_ELEMENT (v4l2src), "Could not get frame rate for element."); + return NULL; + } - if (v4l2src->use_fixed_fps && - (fps = gst_v4l2src_get_fps(v4l2src)) == 0) - return NULL; + if (v4l2src->need_writes > 0) { + /* use last frame */ + buf = v4l2src->cached_buffer; + v4l2src->need_writes--; + } else { + GstClockTime time; + /* grab a frame from the device */ + num = gst_v4l2src_grab_frame(v4l2src); + if (num == -1) + return NULL; + + /* to check if v4l2 sets the correct time */ + time = GST_TIMEVAL_TO_TIME(v4l2src->pool->buffers[num].buffer.timestamp); + if (v4l2src->clock && v4l2src->use_fixed_fps && time != 0) { + gboolean have_frame = FALSE; + + do { + /* FIXME: isn't this v4l2 timestamp its own clock?! */ + /* by default, we use the frame once */ + v4l2src->need_writes = 1; + + g_assert (time >= v4l2src->substract_time); + time -= v4l2src->substract_time; + + /* first check whether we lost any frames according to the device */ + if (v4l2src->last_seq != 0) { + if (v4l2src->pool->buffers[num].buffer.sequence - v4l2src->last_seq > 1) { + v4l2src->need_writes = v4l2src->pool->buffers[num].buffer.sequence - v4l2src->last_seq; + g_signal_emit(G_OBJECT(v4l2src), gst_v4l2src_signals[SIGNAL_FRAME_LOST], 0, + v4l2src->need_writes - 1); + } + } + v4l2src->last_seq = v4l2src->pool->buffers[num].buffer.sequence; + + /* decide how often we're going to write the frame - set + * v4lmjpegsrc->need_writes to (that-1) and have_frame to TRUE + * if we're going to write it - else, just continue. + * + * time is generally the system or audio clock. Let's + * say that we've written one second of audio, then we want + * to have written one second of video too, within the same + * timeframe. This means that if time - begin_time = X sec, + * we want to have written X*fps frames. If we've written + * more - drop, if we've written less - dup... */ + if (v4l2src->handled * (GST_SECOND/fps) - time > 1.5 * (GST_SECOND/fps)) { + /* yo dude, we've got too many frames here! Drop! DROP! */ + v4l2src->need_writes--; /* -= (v4l2src->handled - (time / fps)); */ + g_signal_emit(G_OBJECT(v4l2src), gst_v4l2src_signals[SIGNAL_FRAME_DROP], 0); + } else if (v4l2src->handled * (GST_SECOND/fps) - time < -1.5 * (GST_SECOND/fps)) { + /* this means we're lagging far behind */ + v4l2src->need_writes++; /* += ((time / fps) - v4l2src->handled); */ + g_signal_emit(G_OBJECT(v4l2src), gst_v4l2src_signals[SIGNAL_FRAME_INSERT], 0); + } if (v4l2src->need_writes > 0) { - /* use last frame */ - num = v4l2src->last_frame; - v4l2src->need_writes--; - } else if (v4l2src->clock && v4l2src->use_fixed_fps) { - GstClockTime time; - gboolean have_frame = FALSE; - - do { - /* by default, we use the frame once */ - v4l2src->need_writes = 1; - - /* grab a frame from the device */ - if (!gst_v4l2src_grab_frame(v4l2src, &num)) - return NULL; - - v4l2src->last_frame = num; - time = GST_TIMEVAL_TO_TIME(v4l2src->bufsettings.timestamp) - - v4l2src->substract_time; - - /* first check whether we lost any frames according to the device */ - if (v4l2src->last_seq != 0) { - if (v4l2src->bufsettings.sequence - v4l2src->last_seq > 1) { - v4l2src->need_writes = v4l2src->bufsettings.sequence - - v4l2src->last_seq; - g_signal_emit(G_OBJECT(v4l2src), - gst_v4l2src_signals[SIGNAL_FRAME_LOST], - 0, - v4l2src->bufsettings.sequence - - v4l2src->last_seq - 1); - } - } - v4l2src->last_seq = v4l2src->bufsettings.sequence; - - /* decide how often we're going to write the frame - set - * v4lmjpegsrc->need_writes to (that-1) and have_frame to TRUE - * if we're going to write it - else, just continue. - * - * time is generally the system or audio clock. Let's - * say that we've written one second of audio, then we want - * to have written one second of video too, within the same - * timeframe. This means that if time - begin_time = X sec, - * we want to have written X*fps frames. If we've written - * more - drop, if we've written less - dup... */ - if (v4l2src->handled * (GST_SECOND/fps) - time > - 1.5 * (GST_SECOND/fps)) { - /* yo dude, we've got too many frames here! Drop! DROP! */ - v4l2src->need_writes--; /* -= (v4l2src->handled - (time / fps)); */ - g_signal_emit(G_OBJECT(v4l2src), - gst_v4l2src_signals[SIGNAL_FRAME_DROP], 0); - } else if (v4l2src->handled * (GST_SECOND/fps) - time < - -1.5 * (GST_SECOND/fps)) { - /* this means we're lagging far behind */ - v4l2src->need_writes++; /* += ((time / fps) - v4l2src->handled); */ - g_signal_emit(G_OBJECT(v4l2src), - gst_v4l2src_signals[SIGNAL_FRAME_INSERT], 0); - } - - if (v4l2src->need_writes > 0) { - have_frame = TRUE; - v4l2src->use_num_times[num] = v4l2src->need_writes; - v4l2src->need_writes--; - } else { - gst_v4l2src_requeue_frame(v4l2src, num); - } - } while (!have_frame); + have_frame = TRUE; + v4l2src->need_writes--; } else { - /* grab a frame from the device */ - if (!gst_v4l2src_grab_frame(v4l2src, &num)) - return NULL; - - v4l2src->use_num_times[num] = 1; + if (!gst_v4l2src_queue_frame(v4l2src, num)) + return NULL; + num = gst_v4l2src_grab_frame(v4l2src); + if (num == -1) + return NULL; } + } while (!have_frame); + } + + g_assert (num != -1); + GST_LOG_OBJECT (v4l2src, "buffer %d needs %d writes", num, v4l2src->need_writes + 1); + i = v4l2src->pool->buffers[num].buffer.bytesused > 0 ? + v4l2src->pool->buffers[num].buffer.bytesused : + v4l2src->pool->buffers[num].length; + /* check if this is the last buffer in the queue. If so do a memcpy to put it back asap + to avoid framedrops and deadlocks because of stupid elements */ + if (gst_atomic_int_read (&v4l2src->pool->refcount) == v4l2src->breq.count) { + GST_LOG_OBJECT (v4l2src, "using memcpy'd buffer"); + buf = gst_buffer_new_and_alloc (i); + memcpy (GST_BUFFER_DATA (buf), v4l2src->pool->buffers[num].start, i); + if (!gst_v4l2src_queue_frame(v4l2src, num)) { + gst_data_unref (GST_DATA (buf)); + return NULL; + } + } else { + GST_LOG_OBJECT (v4l2src, "using mmap'd buffer"); + buf = gst_buffer_new (); + GST_BUFFER_DATA (buf) = v4l2src->pool->buffers[num].start; + GST_BUFFER_SIZE (buf) = i; + GST_BUFFER_FREE_DATA_FUNC (buf) = gst_v4l2src_free_buffer; + GST_BUFFER_PRIVATE (buf) = &v4l2src->pool->buffers[num]; + /* no need to be careful here, both are > 0, because the element uses them */ + gst_atomic_int_inc (&v4l2src->pool->buffers[num].refcount); + gst_atomic_int_inc (&v4l2src->pool->refcount); + } + GST_BUFFER_MAXSIZE (buf) = v4l2src->pool->buffers[num].length; + if (v4l2src->use_fixed_fps) { + GST_BUFFER_TIMESTAMP (buf) = v4l2src->handled * GST_SECOND / fps; + GST_BUFFER_DURATION (buf) = GST_SECOND / fps; + } else { + /* calculate time based on our own clock */ + GST_BUFFER_TIMESTAMP(buf) = GST_TIMEVAL_TO_TIME(v4l2src->pool->buffers[num].buffer.timestamp) - + v4l2src->substract_time; + } + if (v4l2src->need_writes > 0) { + v4l2src->cached_buffer = buf; + for (i = 0; i < v4l2src->need_writes; i++) { + gst_data_ref (GST_DATA (buf)); + } + } + } - buf = gst_buffer_new (); - GST_BUFFER_DATA(buf) = gst_v4l2src_get_buffer(v4l2src, num); - GST_BUFFER_SIZE(buf) = v4l2src->bufsettings.bytesused; - GST_BUFFER_FLAG_SET(buf, GST_BUFFER_READONLY); - if (v4l2src->use_fixed_fps) - GST_BUFFER_TIMESTAMP(buf) = v4l2src->handled * GST_SECOND / fps; - else /* calculate time based on our own clock */ - GST_BUFFER_TIMESTAMP(buf) = GST_TIMEVAL_TO_TIME(v4l2src->bufsettings.timestamp) - - v4l2src->substract_time; - - v4l2src->handled++; - g_signal_emit(G_OBJECT(v4l2src), - gst_v4l2src_signals[SIGNAL_FRAME_CAPTURE], 0); - - return GST_DATA (buf); -} + v4l2src->handled++; + g_signal_emit(G_OBJECT(v4l2src), gst_v4l2src_signals[SIGNAL_FRAME_CAPTURE], 0); + return GST_DATA (buf); +} static void gst_v4l2src_set_property (GObject *object, @@ -972,7 +1024,6 @@ gst_v4l2src_change_state (GstElement *element) case GST_STATE_READY_TO_PAUSED: v4l2src->handled = 0; v4l2src->need_writes = 0; - v4l2src->last_frame = 0; v4l2src->substract_time = 0; /* buffer setup moved to capsnego */ break; @@ -1013,60 +1064,3 @@ gst_v4l2src_set_clock (GstElement *element, GST_V4L2SRC(element)->clock = clock; } - -#if 0 -static GstBuffer* -gst_v4l2src_buffer_new (GstBufferPool *pool, - guint64 offset, - guint size, - gpointer user_data) -{ - GstBuffer *buffer; - GstV4l2Src *v4l2src = GST_V4L2SRC(user_data); - - if (!GST_V4L2_IS_ACTIVE(GST_V4L2ELEMENT(v4l2src))) - return NULL; - - buffer = gst_buffer_new(); - if (!buffer) - return NULL; - - /* TODO: add interlacing info to buffer as metadata - * (height>288 or 240 = topfieldfirst, else noninterlaced) */ - GST_BUFFER_MAXSIZE(buffer) = v4l2src->bufsettings.length; - GST_BUFFER_FLAG_SET(buffer, GST_BUFFER_DONTFREE); - - return buffer; -} -#endif - -#if 0 -static void -gst_v4l2src_buffer_free (GstBufferPool *pool, - GstBuffer *buf, - gpointer user_data) -{ - GstV4l2Src *v4l2src = GST_V4L2SRC(user_data); - int n; - - if (gst_element_get_state(GST_ELEMENT(v4l2src)) != GST_STATE_PLAYING) - return; /* we've already cleaned up ourselves */ - - for (n=0;n<v4l2src->breq.count;n++) - if (GST_BUFFER_DATA(buf) == gst_v4l2src_get_buffer(v4l2src, n)) { - v4l2src->use_num_times[n]--; - if (v4l2src->use_num_times[n] <= 0) { - gst_v4l2src_requeue_frame(v4l2src, n); - } - break; - } - - if (n == v4l2src->breq.count) - gst_element_error(GST_ELEMENT(v4l2src), - "Couldn\'t find the buffer"); - - /* free the buffer itself */ - gst_buffer_default_free(buf); -} -#endif - diff --git a/sys/v4l2/gstv4l2src.h b/sys/v4l2/gstv4l2src.h index bae60900..ca528d1e 100644 --- a/sys/v4l2/gstv4l2src.h +++ b/sys/v4l2/gstv4l2src.h @@ -22,6 +22,10 @@ #include <gstv4l2element.h> +GST_DEBUG_CATEGORY_EXTERN (v4l2src_debug); + +#define GST_V4L2_MAX_BUFFERS 16 +#define GST_V4L2_MIN_BUFFERS 2 #define GST_TYPE_V4L2SRC \ (gst_v4l2src_get_type()) @@ -34,9 +38,26 @@ #define GST_IS_V4L2SRC_CLASS(obj) \ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_V4L2SRC)) +typedef struct _GstV4l2BufferPool GstV4l2BufferPool; +typedef struct _GstV4l2Buffer GstV4l2Buffer; +typedef struct _GstV4l2Src GstV4l2Src; +typedef struct _GstV4l2SrcClass GstV4l2SrcClass; + +/* global info */ +struct _GstV4l2BufferPool { + GstAtomicInt refcount; /* number of users: 1 for every buffer, 1 for element */ + gint video_fd; + guint buffer_count; + GstV4l2Buffer * buffers; +}; -typedef struct _GstV4l2Src GstV4l2Src; -typedef struct _GstV4l2SrcClass GstV4l2SrcClass; +struct _GstV4l2Buffer { + struct v4l2_buffer buffer; + guint8 * start; + guint length; + GstAtomicInt refcount; /* add 1 if in use by element, add 1 if in use by GstBuffer */ + GstV4l2BufferPool * pool; +}; struct _GstV4l2Src { GstV4l2Element v4l2element; @@ -45,28 +66,21 @@ struct _GstV4l2Src { GstPad *srcpad; /* internal lists */ - GList /*v4l2_fmtdesc*/ *formats, *format_list; /* list of available capture formats */ + GSList *formats; /* list of available capture formats */ + + /* buffers */ + GstV4l2BufferPool *pool; - /* buffer properties */ - struct v4l2_buffer bufsettings; struct v4l2_requestbuffers breq; struct v4l2_format format; - /* num of queued frames and some GThread stuff - * to wait if there's not enough */ - gint8 *frame_queue_state; - GMutex *mutex_queue_state; - GCond *cond_queue_state; - gint num_queued; - gint queue_frame; - /* True if we want to stop */ gboolean quit; /* A/V sync... frame counter and internal cache */ gulong handled; - gint last_frame; gint need_writes; + GstBuffer *cached_buffer; gulong last_seq; /* clock */ @@ -75,9 +89,6 @@ struct _GstV4l2Src { /* time to substract from clock time to get back to timestamp */ GstClockTime substract_time; - /* how often are we going to use each frame? */ - gint *use_num_times; - /* how are we going to push buffers? */ gboolean use_fixed_fps; }; diff --git a/sys/v4l2/gstv4l2tuner.c b/sys/v4l2/gstv4l2tuner.c index 9cde6daa..f4f2cd64 100644 --- a/sys/v4l2/gstv4l2tuner.c +++ b/sys/v4l2/gstv4l2tuner.c @@ -40,14 +40,14 @@ static const GList * gst_v4l2_tuner_list_channels (GstTuner *mixer); static void gst_v4l2_tuner_set_channel (GstTuner *mixer, GstTunerChannel *channel); -static const GstTunerChannel * +static GstTunerChannel * gst_v4l2_tuner_get_channel (GstTuner *mixer); static const GList * gst_v4l2_tuner_list_norms (GstTuner *mixer); static void gst_v4l2_tuner_set_norm (GstTuner *mixer, GstTunerNorm *norm); -static const GstTunerNorm * +static GstTunerNorm * gst_v4l2_tuner_get_norm (GstTuner *mixer); static void gst_v4l2_tuner_set_frequency (GstTuner *mixer, @@ -205,13 +205,15 @@ gst_v4l2_tuner_set_channel (GstTuner *mixer, g_return_if_fail (gst_v4l2_tuner_contains_channel (v4l2element, v4l2channel)); /* ... or output, if we're a sink... */ - if (gst_v4l2_tuner_is_sink (v4l2element)) - gst_v4l2_set_output (v4l2element, v4l2channel->index); - else - gst_v4l2_set_input (v4l2element, v4l2channel->index); + if (gst_v4l2_tuner_is_sink (v4l2element) ? + gst_v4l2_set_output (v4l2element, v4l2channel->index) : + gst_v4l2_set_input (v4l2element, v4l2channel->index)) { + gst_tuner_channel_changed (mixer, channel); + g_object_notify (G_OBJECT (v4l2element), "channel"); + } } -static const GstTunerChannel * +static GstTunerChannel * gst_v4l2_tuner_get_channel (GstTuner *mixer) { GstV4l2Element *v4l2element = GST_V4L2ELEMENT (mixer); @@ -229,7 +231,7 @@ gst_v4l2_tuner_get_channel (GstTuner *mixer) for (item = v4l2element->channels; item != NULL; item = item->next) { if (channel == GST_V4L2_TUNER_CHANNEL (item->data)->index) - return (const GstTunerChannel *) item->data; + return (GstTunerChannel *) item->data; } return NULL; @@ -265,10 +267,13 @@ gst_v4l2_tuner_set_norm (GstTuner *mixer, g_return_if_fail (GST_V4L2_IS_OPEN (v4l2element)); g_return_if_fail (gst_v4l2_tuner_contains_norm (v4l2element, v4l2norm)); - gst_v4l2_set_norm (v4l2element, v4l2norm->index); + if (gst_v4l2_set_norm (v4l2element, v4l2norm->index)) { + gst_tuner_norm_changed (mixer, norm); + g_object_notify (G_OBJECT (v4l2element), "norm"); + } } -static const GstTunerNorm * +static GstTunerNorm * gst_v4l2_tuner_get_norm (GstTuner *mixer) { GstV4l2Element *v4l2element = GST_V4L2ELEMENT (mixer); @@ -282,7 +287,7 @@ gst_v4l2_tuner_get_norm (GstTuner *mixer) for (item = v4l2element->norms; item != NULL; item = item->next) { if (norm == GST_V4L2_TUNER_NORM (item->data)->index) - return (const GstTunerNorm *) item->data; + return (GstTunerNorm *) item->data; } return NULL; @@ -306,7 +311,10 @@ gst_v4l2_tuner_set_frequency (GstTuner *mixer, gst_v4l2_get_input (v4l2element, &chan); if (chan == GST_V4L2_TUNER_CHANNEL (channel)->index && GST_TUNER_CHANNEL_HAS_FLAG (channel, GST_TUNER_CHANNEL_FREQUENCY)) { - gst_v4l2_set_frequency (v4l2element, v4l2channel->tuner, frequency); + if (gst_v4l2_set_frequency (v4l2element, v4l2channel->tuner, frequency)) { + gst_tuner_frequency_changed (mixer, channel, frequency); + g_object_notify (G_OBJECT (v4l2element), "frequency"); + } } } diff --git a/sys/v4l2/v4l2_calls.c b/sys/v4l2/v4l2_calls.c index ee6e00dd..8e53dae5 100644 --- a/sys/v4l2/v4l2_calls.c +++ b/sys/v4l2/v4l2_calls.c @@ -342,6 +342,49 @@ gst_v4l2_empty_lists (GstV4l2Element *v4l2element) v4l2element->colors = NULL; } +/* FIXME: move this stuff to gstv4l2tuner.c? */ + +static void +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) { + gst_tuner_set_norm (tuner, norm); + } else { + 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"); + } + + 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))); + v4l2element->channel = g_strdup (channel->label); + gst_tuner_channel_changed (tuner, channel); + g_object_notify (G_OBJECT (v4l2element), "channel"); + } + if (v4l2element->frequency != 0) { + gst_tuner_set_frequency (tuner, channel, v4l2element->frequency); + } else { + v4l2element->frequency = gst_tuner_get_frequency (tuner, channel); + if (v4l2element->frequency == 0) { + /* guess */ + gst_tuner_set_frequency (tuner, channel, 1000); + } else { + g_object_notify (G_OBJECT (v4l2element), "frequency"); + } + } +} + /****************************************************** * gst_v4l2_open(): @@ -387,7 +430,10 @@ gst_v4l2_open (GstV4l2Element *v4l2element) if (!gst_v4l2_fill_lists(v4l2element)) goto error; - gst_info("Opened device '%s' (%s) successfully\n", + /* set defaults */ + gst_v4l2_set_defaults (v4l2element); + + GST_INFO_OBJECT (v4l2element, "Opened device '%s' (%s) successfully\n", v4l2element->vcap.card, v4l2element->device); return TRUE; diff --git a/sys/v4l2/v4l2src_calls.c b/sys/v4l2/v4l2src_calls.c index 576b0c0b..3a55a231 100644 --- a/sys/v4l2/v4l2src_calls.c +++ b/sys/v4l2/v4l2src_calls.c @@ -31,26 +31,24 @@ #include <errno.h> #include "v4l2src_calls.h" #include <sys/time.h> +#include <unistd.h> + +#define GST_CAT_DEFAULT v4l2src_debug + +/* lalala... */ +#define GST_V4L2_SET_ACTIVE(element) (element)->buffer = GINT_TO_POINTER (-1) +#define GST_V4L2_SET_INACTIVE(element) (element)->buffer = NULL #define DEBUG(format, args...) \ - GST_DEBUG_OBJECT (\ - GST_ELEMENT(v4l2src), \ + GST_CAT_DEBUG_OBJECT (\ + v4l2src_debug, v4l2src, \ "V4L2SRC: " format, ##args) -#define MIN_BUFFERS_QUEUED 2 - /* On some systems MAP_FAILED seems to be missing */ #ifndef MAP_FAILED #define MAP_FAILED ( (caddr_t) -1 ) #endif -enum { - QUEUE_STATE_ERROR = -1, - QUEUE_STATE_READY_FOR_QUEUE, - QUEUE_STATE_QUEUED, - QUEUE_STATE_SYNCED, -}; - /****************************************************** * gst_v4l2src_fill_format_list(): * create list of supported capture formats @@ -60,54 +58,49 @@ enum { gboolean gst_v4l2src_fill_format_list (GstV4l2Src *v4l2src) { - gint n; - - DEBUG("getting src format enumerations"); - - /* format enumeration */ - for (n=0;;n++) { - struct v4l2_fmtdesc format, *fmtptr; - format.index = n; - format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_ENUM_FMT, &format) < 0) { - if (errno == EINVAL) - break; /* end of enumeration */ - else { - gst_element_error(GST_ELEMENT(v4l2src), - "Failed to get no. %d in pixelformat enumeration for %s: %s", - n, GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); - return FALSE; - } - } - fmtptr = g_malloc(sizeof(format)); - memcpy(fmtptr, &format, sizeof(format)); - v4l2src->formats = g_list_append(v4l2src->formats, fmtptr); - - v4l2src->format_list = g_list_append(v4l2src->format_list, fmtptr->description); - } - - return TRUE; + gint n; + struct v4l2_fmtdesc *format; + + GST_DEBUG_OBJECT (v4l2src, "getting src format enumerations"); + + /* format enumeration */ + for (n=0;;n++) { + format = g_new (struct v4l2_fmtdesc, 1); + format->index = n; + format->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_ENUM_FMT, format) < 0) { + if (errno == EINVAL) { + break; /* end of enumeration */ + } else { + gst_element_error(GST_ELEMENT(v4l2src), + "Failed to get no. %d in pixelformat enumeration for %s: %s", + n, GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); + g_free (format); + return FALSE; + } + } + GST_LOG_OBJECT (v4l2src, "got format"GST_FOURCC_FORMAT, + GST_FOURCC_ARGS (format->pixelformat)); + v4l2src->formats = g_slist_prepend (v4l2src->formats, format); + } + + return TRUE; } /****************************************************** - * gst_v4l2src_empty_format_list(): + * gst_v4l2src_clear_format_list(): * free list of supported capture formats * return value: TRUE on success, FALSE on error ******************************************************/ gboolean -gst_v4l2src_empty_format_list (GstV4l2Src *v4l2src) +gst_v4l2src_clear_format_list (GstV4l2Src *v4l2src) { - while (g_list_length(v4l2src->formats) > 0) { - gpointer data = g_list_nth_data(v4l2src->formats, 0); - v4l2src->formats = g_list_remove(v4l2src->formats, data); - g_free(data); - } - g_list_free(v4l2src->format_list); - v4l2src->format_list = NULL; + g_slist_foreach (v4l2src->formats, (GFunc) g_free, NULL); + g_slist_free (v4l2src->formats); - return TRUE; + return TRUE; } @@ -117,65 +110,47 @@ gst_v4l2src_empty_format_list (GstV4l2Src *v4l2src) * return value: TRUE on success, FALSE on error ******************************************************/ -static gboolean +gboolean gst_v4l2src_queue_frame (GstV4l2Src *v4l2src, - gint num) + guint i) { - DEBUG("queueing frame %d", num); + GST_LOG_OBJECT (v4l2src, "queueing frame %u", i); - if (v4l2src->frame_queue_state[num] != QUEUE_STATE_READY_FOR_QUEUE) { - return FALSE; - } + if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_QBUF, &v4l2src->pool->buffers[i].buffer) < 0) { + gst_element_error(GST_ELEMENT(v4l2src), "Error queueing buffer %u on device %s: %s", + i, GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); + return FALSE; + } - v4l2src->bufsettings.index = num; - if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, - VIDIOC_QBUF, &v4l2src->bufsettings) < 0) { - gst_element_error(GST_ELEMENT(v4l2src), - "Error queueing buffer %d on device %s: %s", - num, GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); - return FALSE; - } - - v4l2src->frame_queue_state[num] = QUEUE_STATE_QUEUED; - v4l2src->num_queued++; - - return TRUE; + return TRUE; } /****************************************************** - * gst_v4l2src_sync_next_frame(): - * sync on a frame for capturing + * gst_v4l2src_grab_frame (): + * grab a frame for capturing * return value: TRUE on success, FALSE on error ******************************************************/ -static gboolean -gst_v4l2src_sync_next_frame (GstV4l2Src *v4l2src, - gint *num) +gint +gst_v4l2src_grab_frame (GstV4l2Src *v4l2src) { - if (v4l2src->num_queued <= 0) { - return FALSE; - } - - while (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, - VIDIOC_DQBUF, &v4l2src->bufsettings) < 0) { - /* if the sync() got interrupted, we can retry */ - if (errno != EINTR) { - gst_element_error(GST_ELEMENT(v4l2src), - "Error syncing on a buffer on device %s: %s", - GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); - return FALSE; - } - DEBUG("Sync got interrupted"); - } - - DEBUG("synced on frame %d", v4l2src->bufsettings.index); - *num = v4l2src->bufsettings.index; - - v4l2src->frame_queue_state[*num] = QUEUE_STATE_SYNCED; - v4l2src->num_queued--; - - return TRUE; + struct v4l2_buffer buffer; + + buffer.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + while (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_DQBUF, &buffer) < 0) { + /* if the sync() got interrupted, we can retry */ + if (errno != EINTR) { + gst_element_error(GST_ELEMENT(v4l2src), "Error syncing on a buffer on device %s: %s", + GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); + return -1; + } + GST_DEBUG_OBJECT (v4l2src, "grab got interrupted"); + } + + GST_LOG_OBJECT (v4l2src, "grabbed frame %d", buffer.index); + + return buffer.index; } @@ -226,6 +201,7 @@ gst_v4l2src_set_capture (GstV4l2Src *v4l2src, v4l2src->format.fmt.pix.width = width; v4l2src->format.fmt.pix.height = height; v4l2src->format.fmt.pix.pixelformat = fmt->pixelformat; + v4l2src->format.fmt.pix.field = V4L2_FIELD_INTERLACED; v4l2src->format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_S_FMT, &v4l2src->format) < 0) { @@ -250,88 +226,81 @@ gst_v4l2src_set_capture (GstV4l2Src *v4l2src, gboolean gst_v4l2src_capture_init (GstV4l2Src *v4l2src) { - gint n; - gchar *desc = NULL; - struct v4l2_buffer buf; - - DEBUG("initting the capture system"); - - GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src)); - GST_V4L2_CHECK_NOT_ACTIVE(GST_V4L2ELEMENT(v4l2src)); - - /* request buffer info */ - if (v4l2src->breq.count < MIN_BUFFERS_QUEUED) { - v4l2src->breq.count = MIN_BUFFERS_QUEUED; - } - v4l2src->breq.type = v4l2src->format.type; - v4l2src->breq.memory = V4L2_MEMORY_MMAP; - if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, - VIDIOC_REQBUFS, &v4l2src->breq) < 0) { - gst_element_error(GST_ELEMENT(v4l2src), - "Error requesting buffers (%d) for %s: %s", - v4l2src->breq.count, GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); - return FALSE; - } - - if (v4l2src->breq.count < MIN_BUFFERS_QUEUED) { - gst_element_error(GST_ELEMENT(v4l2src), - "Too little buffers. We got %d, we want at least %d", - v4l2src->breq.count, MIN_BUFFERS_QUEUED); - return FALSE; - } - v4l2src->bufsettings.type = v4l2src->format.type; - - for (n=0;n<g_list_length(v4l2src->formats);n++) { - struct v4l2_fmtdesc *fmt = (struct v4l2_fmtdesc *) g_list_nth_data(v4l2src->formats, n); - if (v4l2src->format.fmt.pix.pixelformat == fmt->pixelformat) { - desc = fmt->description; - break; - } - } - gst_info("Got %d buffers (%s) of size %d KB\n", - v4l2src->breq.count, desc, v4l2src->format.fmt.pix.sizeimage/1024); - - /* keep track of queued buffers */ - v4l2src->frame_queue_state = (gint8 *) - g_malloc(sizeof(gint8) * v4l2src->breq.count); - - /* track how often to use each frame */ - v4l2src->use_num_times = (gint *) - g_malloc(sizeof(gint) * v4l2src->breq.count); - - /* lock for the frame_state */ - v4l2src->mutex_queue_state = g_mutex_new(); - v4l2src->cond_queue_state = g_cond_new(); - - /* Map the buffers */ - GST_V4L2ELEMENT(v4l2src)->buffer = (guint8 **) - g_malloc(sizeof(guint8 *) * v4l2src->breq.count); - for (n=0;n<v4l2src->breq.count;n++) { - buf.index = n; - buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, - VIDIOC_QUERYBUF, &buf) < 0) { - gst_element_error(GST_ELEMENT(v4l2src), - "Failed to get buffer (%d) properties: %s", - n, g_strerror(errno)); - gst_v4l2src_capture_deinit(v4l2src); - return FALSE; - } - GST_V4L2ELEMENT(v4l2src)->buffer[n] = mmap(0, - buf.length, PROT_READ|PROT_WRITE, MAP_SHARED, - GST_V4L2ELEMENT(v4l2src)->video_fd, buf.m.offset); - if (GST_V4L2ELEMENT(v4l2src)->buffer[n] == MAP_FAILED) { - gst_element_error(GST_ELEMENT(v4l2src), - "Error mapping video buffer (%d) on device %s: %s", - n, GST_V4L2ELEMENT(v4l2src)->device, - g_strerror(errno)); - GST_V4L2ELEMENT(v4l2src)->buffer[n] = NULL; - gst_v4l2src_capture_deinit(v4l2src); - return FALSE; - } - } - - return TRUE; + gint n; + guint buffers; + + GST_DEBUG_OBJECT (v4l2src, "initting the capture system"); + + GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src)); + GST_V4L2_CHECK_NOT_ACTIVE(GST_V4L2ELEMENT(v4l2src)); + + /* request buffer info */ + buffers = v4l2src->breq.count; + if (v4l2src->breq.count > GST_V4L2_MAX_BUFFERS) { + v4l2src->breq.count = GST_V4L2_MAX_BUFFERS; + } + if (v4l2src->breq.count < GST_V4L2_MIN_BUFFERS) { + v4l2src->breq.count = GST_V4L2_MIN_BUFFERS; + } + v4l2src->breq.type = v4l2src->format.type; + v4l2src->breq.memory = V4L2_MEMORY_MMAP; + if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_REQBUFS, &v4l2src->breq) < 0) { + gst_element_error(GST_ELEMENT(v4l2src), "Error requesting buffers (%d) for %s: %s", + v4l2src->breq.count, GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); + return FALSE; + } + + if (v4l2src->breq.count < GST_V4L2_MIN_BUFFERS) { + gst_element_error(GST_ELEMENT(v4l2src), "Too little buffers. We got %d, we want at least %d", + v4l2src->breq.count, GST_V4L2_MIN_BUFFERS); + v4l2src->breq.count = buffers; + return FALSE; + } + if (v4l2src->breq.count != buffers) + g_object_notify (G_OBJECT (v4l2src), "num_buffers"); + + GST_INFO_OBJECT (v4l2src, "Got %d buffers ("GST_FOURCC_FORMAT") of size %d KB\n", + v4l2src->breq.count, GST_FOURCC_ARGS (v4l2src->format.fmt.pix.pixelformat), + v4l2src->format.fmt.pix.sizeimage / 1024); + + /* Map the buffers */ + v4l2src->pool = g_new (GstV4l2BufferPool, 1); + gst_atomic_int_init (&v4l2src->pool->refcount, 1); + v4l2src->pool->video_fd = GST_V4L2ELEMENT (v4l2src)->video_fd; + v4l2src->pool->buffer_count = v4l2src->breq.count; + v4l2src->pool->buffers = g_new0 (GstV4l2Buffer, v4l2src->breq.count); + + for (n = 0; n < v4l2src->breq.count; n++) { + GstV4l2Buffer *buffer = &v4l2src->pool->buffers[n]; + + gst_atomic_int_init (&buffer->refcount, 1); + buffer->pool = v4l2src->pool; + buffer->buffer.index = n; + buffer->buffer.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_QUERYBUF, &buffer->buffer) < 0) { + gst_element_error(GST_ELEMENT(v4l2src), "Failed to get buffer (%d) properties: %s", + n, g_strerror(errno)); + gst_v4l2src_capture_deinit(v4l2src); + return FALSE; + } + buffer->start = mmap (0, buffer->buffer.length, PROT_READ|PROT_WRITE, MAP_SHARED, + GST_V4L2ELEMENT(v4l2src)->video_fd, buffer->buffer.m.offset); + if (buffer->start == MAP_FAILED) { + gst_element_error(GST_ELEMENT(v4l2src), "Error mapping video buffer (%d) on device %s: %s", + n, GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); + buffer->start = 0; + gst_v4l2src_capture_deinit (v4l2src); + return FALSE; + } + buffer->length = buffer->buffer.length; + if (!gst_v4l2src_queue_frame(v4l2src, n)) { + gst_v4l2src_capture_deinit (v4l2src); + return FALSE; + } + } + + GST_V4L2_SET_ACTIVE(GST_V4L2ELEMENT (v4l2src)); + return TRUE; } @@ -344,147 +313,25 @@ gst_v4l2src_capture_init (GstV4l2Src *v4l2src) gboolean gst_v4l2src_capture_start (GstV4l2Src *v4l2src) { - gint n; - - DEBUG("starting the capturing"); - GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src)); - GST_V4L2_CHECK_ACTIVE(GST_V4L2ELEMENT(v4l2src)); - - g_mutex_lock(v4l2src->mutex_queue_state); - - v4l2src->quit = FALSE; - v4l2src->num_queued = 0; - v4l2src->queue_frame = 0; - - /* set all buffers ready to queue , this starts streaming capture */ - for (n=0;n<v4l2src->breq.count;n++) { - v4l2src->frame_queue_state[n] = QUEUE_STATE_READY_FOR_QUEUE; - if (!gst_v4l2src_queue_frame(v4l2src, n)) { - g_mutex_unlock(v4l2src->mutex_queue_state); - gst_v4l2src_capture_stop(v4l2src); - return FALSE; - } - } - - n = 1; - if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_STREAMON, &n) < 0) { - gst_element_error(GST_ELEMENT(v4l2src), - "Error starting streaming capture for %s: %s", - GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); - return FALSE; - } - - g_mutex_unlock(v4l2src->mutex_queue_state); - - return TRUE; -} - - -/****************************************************** - * gst_v4l2src_grab_frame(): - * capture one frame during streaming capture - * return value: TRUE on success, FALSE on error - ******************************************************/ - -gboolean -gst_v4l2src_grab_frame (GstV4l2Src *v4l2src, - gint *num) -{ - DEBUG("syncing on the next frame"); + gint type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src)); - GST_V4L2_CHECK_ACTIVE(GST_V4L2ELEMENT(v4l2src)); - - g_mutex_lock(v4l2src->mutex_queue_state); - - /* do we have enough frames? */ - while (v4l2src->num_queued < MIN_BUFFERS_QUEUED || - v4l2src->frame_queue_state[v4l2src->queue_frame] == - QUEUE_STATE_READY_FOR_QUEUE) { - while (v4l2src->frame_queue_state[v4l2src->queue_frame] != - QUEUE_STATE_READY_FOR_QUEUE && - !v4l2src->quit) { - GST_DEBUG ( - "Waiting for frames to become available (%d < %d)", - v4l2src->num_queued, MIN_BUFFERS_QUEUED); - g_cond_wait(v4l2src->cond_queue_state, - v4l2src->mutex_queue_state); - } - if (v4l2src->quit) { - g_mutex_unlock(v4l2src->mutex_queue_state); - return TRUE; /* it won't get through anyway */ - } - if (!gst_v4l2src_queue_frame(v4l2src, v4l2src->queue_frame)) { - g_mutex_unlock(v4l2src->mutex_queue_state); - return FALSE; - } - v4l2src->queue_frame = (v4l2src->queue_frame + 1) % v4l2src->breq.count; - } + GST_DEBUG_OBJECT (v4l2src, "starting the capturing"); + + GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src)); + if (!GST_V4L2_IS_ACTIVE (GST_V4L2ELEMENT(v4l2src))) { + gst_pad_renegotiate (v4l2src->srcpad); + } + GST_V4L2_CHECK_ACTIVE(GST_V4L2ELEMENT(v4l2src)); - /* syncing on the buffer grabs it */ - if (!gst_v4l2src_sync_next_frame(v4l2src, num)) { - g_mutex_unlock(v4l2src->mutex_queue_state); - return FALSE; - } + v4l2src->quit = FALSE; - g_mutex_unlock(v4l2src->mutex_queue_state); + if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_STREAMON, &type) < 0) { + gst_element_error(GST_ELEMENT(v4l2src), "Error starting streaming capture for %s: %s", + GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); + return FALSE; + } - return TRUE; -} - - -/****************************************************** - * - ******************************************************/ - -guint8 * -gst_v4l2src_get_buffer (GstV4l2Src *v4l2src, - gint num) -{ - if (!GST_V4L2_IS_ACTIVE(GST_V4L2ELEMENT(v4l2src)) || - !GST_V4L2_IS_OPEN(GST_V4L2ELEMENT(v4l2src))) - return NULL; - - if (num < 0 || num >= v4l2src->breq.count) - return NULL; - - return GST_V4L2ELEMENT(v4l2src)->buffer[num]; -} - - -/****************************************************** - * gst_v4l2src_requeue_frame(): - * re-queue a frame after we're done with the buffer - * return value: TRUE on success, FALSE on error - ******************************************************/ - -gboolean -gst_v4l2src_requeue_frame (GstV4l2Src *v4l2src, - gint num) -{ - DEBUG("requeueing frame %d", num); - GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src)); - GST_V4L2_CHECK_ACTIVE(GST_V4L2ELEMENT(v4l2src)); - - /* mark frame as 'ready to requeue' */ - g_mutex_lock(v4l2src->mutex_queue_state); - - if (v4l2src->frame_queue_state[num] != QUEUE_STATE_SYNCED) { - gst_element_error(GST_ELEMENT(v4l2src), - "Invalid state %d (expected %d), can't requeue", - v4l2src->frame_queue_state[num], - QUEUE_STATE_SYNCED); - return FALSE; - } - - v4l2src->frame_queue_state[num] = QUEUE_STATE_READY_FOR_QUEUE; - - /* let an optional wait know */ - g_cond_broadcast(v4l2src->cond_queue_state); - - g_mutex_unlock(v4l2src->mutex_queue_state); - - return TRUE; + return TRUE; } @@ -497,37 +344,60 @@ gst_v4l2src_requeue_frame (GstV4l2Src *v4l2src, gboolean gst_v4l2src_capture_stop (GstV4l2Src *v4l2src) { - gint n = 0; - - DEBUG("stopping capturing"); - GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src)); - GST_V4L2_CHECK_ACTIVE(GST_V4L2ELEMENT(v4l2src)); - - g_mutex_lock(v4l2src->mutex_queue_state); - - /* we actually need to sync on all queued buffers but not - * on the non-queued ones */ - if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_STREAMOFF, &n) < 0) { - gst_element_error(GST_ELEMENT(v4l2src), - "Error stopping streaming capture for %s: %s", - GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); - return FALSE; - } - - /* make an optional pending wait stop */ - v4l2src->quit = TRUE; - g_cond_broadcast(v4l2src->cond_queue_state); + gint type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + + GST_DEBUG_OBJECT (v4l2src, "stopping capturing"); + GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src)); + GST_V4L2_CHECK_ACTIVE(GST_V4L2ELEMENT(v4l2src)); + + /* we actually need to sync on all queued buffers but not + * on the non-queued ones */ + if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_STREAMOFF, &type) < 0) { + gst_element_error (GST_ELEMENT(v4l2src), "Error stopping streaming capture for %s: %s", + GST_V4L2ELEMENT(v4l2src)->device, g_strerror(errno)); + return FALSE; + } + + /* make an optional pending wait stop */ + v4l2src->quit = TRUE; - /* sync on remaining frames */ - while (v4l2src->num_queued > 0) { - gst_v4l2src_sync_next_frame(v4l2src, &n); - } - - g_mutex_unlock(v4l2src->mutex_queue_state); + return TRUE; +} - return TRUE; +static void +gst_v4l2src_buffer_pool_free (GstV4l2BufferPool *pool, gboolean do_close) +{ + guint i; + + for (i = 0; i < pool->buffer_count; i++) { + gst_atomic_int_destroy (&pool->buffers[i].refcount); + munmap (pool->buffers[i].start, pool->buffers[i].length); + } + g_free (pool->buffers); + gst_atomic_int_destroy (&pool->refcount); + if (do_close) + close (pool->video_fd); + g_free (pool); } +void +gst_v4l2src_free_buffer (GstBuffer *buffer) +{ + GstV4l2Buffer *buf = (GstV4l2Buffer *) GST_BUFFER_PRIVATE (buffer); + + GST_LOG ("freeing buffer %p (nr. %d)", buffer, buf->buffer.index); + + if (!gst_atomic_int_dec_and_test (&buf->refcount)) { + /* we're still in use, add to queue again + note: this might fail because the device is already stopped (race) */ + if (ioctl(buf->pool->video_fd, VIDIOC_QBUF, &buf->buffer) < 0) + GST_INFO ("readding to queue failed, assuming video device is stopped"); + } + if (gst_atomic_int_dec_and_test (&buf->pool->refcount)) { + /* we're last thing that used all this */ + gst_v4l2src_buffer_pool_free (buf->pool, TRUE); + } +} /****************************************************** * gst_v4l2src_capture_deinit(): @@ -538,31 +408,32 @@ gst_v4l2src_capture_stop (GstV4l2Src *v4l2src) gboolean gst_v4l2src_capture_deinit (GstV4l2Src *v4l2src) { - int n; - - DEBUG("deinitting capture system"); - GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src)); - GST_V4L2_CHECK_ACTIVE(GST_V4L2ELEMENT(v4l2src)); - - /* unmap the buffer */ - for (n=0;n<v4l2src->breq.count;n++) { - if (!GST_V4L2ELEMENT(v4l2src)->buffer[n]) { - break; - } - munmap(GST_V4L2ELEMENT(v4l2src)->buffer[n], - v4l2src->format.fmt.pix.sizeimage); - GST_V4L2ELEMENT(v4l2src)->buffer[n] = NULL; - } - - /* free buffer tracker */ - g_free(GST_V4L2ELEMENT(v4l2src)->buffer); - GST_V4L2ELEMENT(v4l2src)->buffer = NULL; - g_mutex_free(v4l2src->mutex_queue_state); - g_cond_free(v4l2src->cond_queue_state); - g_free(v4l2src->frame_queue_state); - g_free(v4l2src->use_num_times); - - return TRUE; + gint i, dequeue = 0; + + GST_DEBUG_OBJECT (v4l2src, "deinitting capture system"); + + GST_V4L2_CHECK_OPEN(GST_V4L2ELEMENT(v4l2src)); + GST_V4L2_CHECK_ACTIVE(GST_V4L2ELEMENT(v4l2src)); + + /* free the buffers */ + for (i = 0; i < v4l2src->breq.count; i++) { + if (gst_atomic_int_dec_and_test (&v4l2src->pool->buffers[i].refcount)) + dequeue++; + } + for (i = 0; i < dequeue; i++) { + struct v4l2_buffer buffer; + buffer.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_DQBUF, &buffer) < 0) + GST_WARNING_OBJECT (v4l2src, "Could not dequeue buffer on uninitialization"); + } + if (gst_atomic_int_dec_and_test (&v4l2src->pool->refcount)) { + /* we're last thing that used all this */ + gst_v4l2src_buffer_pool_free (v4l2src->pool, FALSE); + } + v4l2src->pool = NULL; + + GST_V4L2_SET_INACTIVE (GST_V4L2ELEMENT (v4l2src)); + return TRUE; } @@ -578,13 +449,16 @@ gst_v4l2src_get_size_limits (GstV4l2Src *v4l2src, { struct v4l2_format fmt; + GST_LOG_OBJECT (v4l2src, "getting size limits with format " GST_FOURCC_FORMAT, + GST_FOURCC_ARGS (format->pixelformat)); + /* get size delimiters */ memset(&fmt, 0, sizeof(fmt)); fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; fmt.fmt.pix.width = 0; fmt.fmt.pix.height = 0; fmt.fmt.pix.pixelformat = format->pixelformat; - fmt.fmt.pix.field = V4L2_FIELD_ANY; + fmt.fmt.pix.field = V4L2_FIELD_INTERLACED; if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_TRY_FMT, &fmt) < 0) { return FALSE; @@ -594,9 +468,10 @@ gst_v4l2src_get_size_limits (GstV4l2Src *v4l2src, *min_w = fmt.fmt.pix.width; if (min_h) *min_h = fmt.fmt.pix.height; + GST_LOG_OBJECT (v4l2src, "got min size %dx%d", fmt.fmt.pix.width, fmt.fmt.pix.height); fmt.fmt.pix.width = G_MAXINT; - fmt.fmt.pix.height = G_MAXINT; + fmt.fmt.pix.height = 576; if (ioctl(GST_V4L2ELEMENT(v4l2src)->video_fd, VIDIOC_TRY_FMT, &fmt) < 0) { return FALSE; @@ -606,6 +481,7 @@ gst_v4l2src_get_size_limits (GstV4l2Src *v4l2src, *max_w = fmt.fmt.pix.width; if (max_h) *max_h = fmt.fmt.pix.height; + GST_LOG_OBJECT (v4l2src, "got max size %dx%d", fmt.fmt.pix.width, fmt.fmt.pix.height); return TRUE; } diff --git a/sys/v4l2/v4l2src_calls.h b/sys/v4l2/v4l2src_calls.h index 4332312d..dc5fca0c 100644 --- a/sys/v4l2/v4l2src_calls.h +++ b/sys/v4l2/v4l2src_calls.h @@ -17,8 +17,8 @@ * Boston, MA 02111-1307, USA. */ -#ifndef __V4L2_SRC_CALLS_H__ -#define __V4L2_SRC_CALLS_H__ +#ifndef __V4L2SRC_CALLS_H__ +#define __V4L2SRC_CALLS_H__ #include "gstv4l2src.h" #include "v4l2_calls.h" @@ -31,17 +31,16 @@ gboolean gst_v4l2src_set_capture (GstV4l2Src *v4l2src, gint height); gboolean gst_v4l2src_capture_init (GstV4l2Src *v4l2src); gboolean gst_v4l2src_capture_start (GstV4l2Src *v4l2src); -gboolean gst_v4l2src_grab_frame (GstV4l2Src *v4l2src, - gint *num); +gint gst_v4l2src_grab_frame (GstV4l2Src *v4l2src); guint8 * gst_v4l2src_get_buffer (GstV4l2Src *v4l2src, gint num); -gboolean gst_v4l2src_requeue_frame (GstV4l2Src *v4l2src, - gint num); +gboolean gst_v4l2src_queue_frame (GstV4l2Src *v4l2src, + guint i); gboolean gst_v4l2src_capture_stop (GstV4l2Src *v4l2src); gboolean gst_v4l2src_capture_deinit (GstV4l2Src *v4l2src); gboolean gst_v4l2src_fill_format_list (GstV4l2Src *v4l2src); -gboolean gst_v4l2src_empty_format_list (GstV4l2Src *v4l2src); +gboolean gst_v4l2src_clear_format_list (GstV4l2Src *v4l2src); /* hacky */ gboolean gst_v4l2src_get_size_limits (GstV4l2Src *v4l2src, @@ -49,4 +48,6 @@ gboolean gst_v4l2src_get_size_limits (GstV4l2Src *v4l2src, gint *min_w, gint *max_w, gint *min_h, gint *max_h); -#endif /* __V4L2_SRC_CALLS_H__ */ +void gst_v4l2src_free_buffer (GstBuffer *buffer); + +#endif /* __V4L2SRC_CALLS_H__ */ |