diff options
Diffstat (limited to 'gst/videofilter/gstvideofilter.c')
| -rw-r--r-- | gst/videofilter/gstvideofilter.c | 484 |
1 files changed, 6 insertions, 478 deletions
diff --git a/gst/videofilter/gstvideofilter.c b/gst/videofilter/gstvideofilter.c index 89951bb9..a7d9db0e 100644 --- a/gst/videofilter/gstvideofilter.c +++ b/gst/videofilter/gstvideofilter.c @@ -22,40 +22,15 @@ #include "config.h" #endif -#include <string.h> -/*#define DEBUG_ENABLED */ #include "gstvideofilter.h" GST_DEBUG_CATEGORY_STATIC (gst_videofilter_debug); #define GST_CAT_DEFAULT gst_videofilter_debug -/* GstVideofilter signals and args */ -enum -{ - /* FILL ME */ - LAST_SIGNAL -}; - -enum -{ - ARG_0, - ARG_METHOD - /* FILL ME */ -}; - -static void gst_videofilter_base_init (gpointer g_class); static void gst_videofilter_class_init (gpointer g_class, gpointer class_data); static void gst_videofilter_init (GTypeInstance * instance, gpointer g_class); -static void gst_videofilter_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec); -static void gst_videofilter_get_property (GObject * object, guint prop_id, - GValue * value, GParamSpec * pspec); - -static GstFlowReturn gst_videofilter_chain (GstPad * pad, GstBuffer * buffer); -GstCaps *gst_videofilter_class_get_capslist (GstVideofilterClass * klass); - -static GstElementClass *parent_class = NULL; +static GstBaseTransformClass *parent_class = NULL; GType gst_videofilter_get_type (void) @@ -65,7 +40,7 @@ gst_videofilter_get_type (void) if (!videofilter_type) { static const GTypeInfo videofilter_info = { sizeof (GstVideofilterClass), - gst_videofilter_base_init, + NULL, NULL, gst_videofilter_class_init, NULL, @@ -75,484 +50,37 @@ gst_videofilter_get_type (void) gst_videofilter_init, }; - videofilter_type = g_type_register_static (GST_TYPE_ELEMENT, + videofilter_type = g_type_register_static (GST_TYPE_BASE_TRANSFORM, "GstVideofilter", &videofilter_info, G_TYPE_FLAG_ABSTRACT); } return videofilter_type; } static void -gst_videofilter_base_init (gpointer g_class) -{ - static GstElementDetails videofilter_details = { - "Video scaler", - "Filter/Effect/Video", - "Resizes video", - "David Schleef <ds@schleef.org>" - }; - GstVideofilterClass *klass = (GstVideofilterClass *) g_class; - GstElementClass *element_class = GST_ELEMENT_CLASS (klass); - - klass->formats = g_ptr_array_new (); - - gst_element_class_set_details (element_class, &videofilter_details); -} - -static void gst_videofilter_class_init (gpointer g_class, gpointer class_data) { GObjectClass *gobject_class; GstElementClass *gstelement_class; + GstBaseTransformClass *trans_class; GstVideofilterClass *klass; klass = (GstVideofilterClass *) g_class; gobject_class = (GObjectClass *) klass; gstelement_class = (GstElementClass *) klass; + trans_class = (GstBaseTransformClass *) klass; - parent_class = g_type_class_ref (GST_TYPE_ELEMENT); - - gobject_class->set_property = gst_videofilter_set_property; - gobject_class->get_property = gst_videofilter_get_property; + parent_class = g_type_class_peek_parent (klass); GST_DEBUG_CATEGORY_INIT (gst_videofilter_debug, "videofilter", 0, "videofilter"); } -static GstStructure * -gst_videofilter_format_get_structure (GstVideofilterFormat * format) -{ - unsigned int fourcc; - GstStructure *structure; - - if (format->filter_func == NULL) - return NULL; - - fourcc = - GST_MAKE_FOURCC (format->fourcc[0], format->fourcc[1], format->fourcc[2], - format->fourcc[3]); - - if (format->depth) { - structure = gst_structure_new ("video/x-raw-rgb", - "depth", G_TYPE_INT, format->depth, - "bpp", G_TYPE_INT, format->bpp, - "endianness", G_TYPE_INT, format->endianness, - "red_mask", G_TYPE_INT, format->red_mask, - "green_mask", G_TYPE_INT, format->green_mask, - "blue_mask", G_TYPE_INT, format->blue_mask, NULL); - } else { - structure = gst_structure_new ("video/x-raw-yuv", - "format", GST_TYPE_FOURCC, fourcc, NULL); - } - - gst_structure_set (structure, - "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, - "width", GST_TYPE_INT_RANGE, 1, G_MAXINT, - "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL); - - return structure; -} - -GstCaps * -gst_videofilter_class_get_capslist (GstVideofilterClass * klass) -{ - GstCaps *caps; - GstStructure *structure; - int i; - - caps = gst_caps_new_empty (); - for (i = 0; i < klass->formats->len; i++) { - structure = - gst_videofilter_format_get_structure (g_ptr_array_index (klass->formats, - i)); - gst_caps_append_structure (caps, structure); - } - - return caps; -} - -static GstCaps * -gst_videofilter_getcaps (GstPad * pad) -{ - GstVideofilter *videofilter; - GstVideofilterClass *klass; - GstCaps *caps; - GstPad *peer; - int i; - - videofilter = GST_VIDEOFILTER (GST_PAD_PARENT (pad)); - GST_DEBUG_OBJECT (videofilter, "gst_videofilter_getcaps"); - - klass = GST_VIDEOFILTER_CLASS (G_OBJECT_GET_CLASS (videofilter)); - - /* we can handle anything that was registered */ - caps = gst_caps_new_empty (); - for (i = 0; i < klass->formats->len; i++) { - GstCaps *fromcaps; - - fromcaps = - gst_caps_new_full (gst_videofilter_format_get_structure - (g_ptr_array_index (klass->formats, i)), NULL); - - gst_caps_append (caps, fromcaps); - } - - peer = gst_pad_get_peer (pad); - if (peer) { - GstCaps *peercaps; - - peercaps = gst_pad_get_caps (peer); - if (peercaps) { - GstCaps *icaps; - - icaps = gst_caps_intersect (peercaps, caps); - gst_caps_unref (peercaps); - gst_caps_unref (caps); - caps = icaps; - } - //gst_object_unref (peer); - } - - return caps; -} - -static gboolean -gst_videofilter_setcaps (GstPad * pad, GstCaps * caps) -{ - GstVideofilter *videofilter; - GstStructure *structure; - int width, height; - const GValue *framerate; - int ret; - - videofilter = GST_VIDEOFILTER (GST_PAD_PARENT (pad)); - - structure = gst_caps_get_structure (caps, 0); - - videofilter->format = - gst_videofilter_find_format_by_structure (videofilter, structure); - g_return_val_if_fail (videofilter->format, GST_PAD_LINK_REFUSED); - - ret = gst_structure_get_int (structure, "width", &width); - ret &= gst_structure_get_int (structure, "height", &height); - - framerate = gst_structure_get_value (structure, "framerate"); - ret &= (framerate != NULL && GST_VALUE_HOLDS_FRACTION (framerate)); - - if (!ret) - return FALSE; - - gst_pad_set_caps (videofilter->srcpad, caps); - - GST_DEBUG_OBJECT (videofilter, "width %d height %d", width, height); - -#if 0 - if (pad == videofilter->srcpad) { - videofilter->to_width = width; - videofilter->to_height = height; - } else { - videofilter->from_width = width; - videofilter->from_height = height; - } -#endif - videofilter->to_width = width; - videofilter->to_height = height; - videofilter->from_width = width; - videofilter->from_height = height; - g_value_copy (framerate, &videofilter->framerate); - - gst_videofilter_setup (videofilter); - - return TRUE; -} - static void gst_videofilter_init (GTypeInstance * instance, gpointer g_class) { GstVideofilter *videofilter = GST_VIDEOFILTER (instance); - GstPadTemplate *pad_template; GST_DEBUG_OBJECT (videofilter, "gst_videofilter_init"); - pad_template = - gst_element_class_get_pad_template (GST_ELEMENT_CLASS (g_class), "sink"); - g_return_if_fail (pad_template != NULL); - videofilter->sinkpad = gst_pad_new_from_template (pad_template, "sink"); - gst_element_add_pad (GST_ELEMENT (videofilter), videofilter->sinkpad); - gst_pad_set_chain_function (videofilter->sinkpad, gst_videofilter_chain); - gst_pad_set_setcaps_function (videofilter->sinkpad, gst_videofilter_setcaps); - gst_pad_set_getcaps_function (videofilter->sinkpad, gst_videofilter_getcaps); - - pad_template = - gst_element_class_get_pad_template (GST_ELEMENT_CLASS (g_class), "src"); - g_return_if_fail (pad_template != NULL); - videofilter->srcpad = gst_pad_new_from_template (pad_template, "src"); - gst_element_add_pad (GST_ELEMENT (videofilter), videofilter->srcpad); - gst_pad_set_getcaps_function (videofilter->srcpad, gst_videofilter_getcaps); - videofilter->inited = FALSE; - g_value_init (&videofilter->framerate, GST_TYPE_FRACTION); -} - -static GstFlowReturn -gst_videofilter_chain (GstPad * pad, GstBuffer * buf) -{ - GstVideofilter *videofilter; - guchar *data; - gulong size; - GstBuffer *outbuf; - GstFlowReturn ret; - - videofilter = GST_VIDEOFILTER (GST_PAD_PARENT (pad)); - GST_DEBUG_OBJECT (videofilter, "gst_videofilter_chain"); - - if (videofilter->passthru) { - return gst_pad_push (videofilter->srcpad, buf); - } - - if (GST_PAD_CAPS (pad) == NULL) { - return GST_FLOW_NOT_NEGOTIATED; - } - - data = GST_BUFFER_DATA (buf); - size = GST_BUFFER_SIZE (buf); - - GST_LOG_OBJECT (videofilter, "got buffer of %ld bytes in '%s'", size, - GST_OBJECT_NAME (videofilter)); - - GST_LOG_OBJECT (videofilter, - "size=%ld from=%dx%d to=%dx%d fromsize=%ld (should be %d) tosize=%d", - size, videofilter->from_width, videofilter->from_height, - videofilter->to_width, videofilter->to_height, size, - videofilter->from_buf_size, videofilter->to_buf_size); - - - if (size > videofilter->from_buf_size) { - GST_INFO_OBJECT (videofilter, "buffer size %ld larger than expected (%d)", - size, videofilter->from_buf_size); - return GST_FLOW_ERROR; - } - - ret = gst_pad_alloc_buffer (videofilter->srcpad, GST_BUFFER_OFFSET_NONE, - videofilter->to_buf_size, GST_PAD_CAPS (videofilter->srcpad), &outbuf); - if (ret != GST_FLOW_OK) - goto no_buffer; - - g_return_val_if_fail (GST_BUFFER_DATA (outbuf), GST_FLOW_ERROR); - - GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf); - GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf); - - g_return_val_if_fail (videofilter->format, GST_FLOW_ERROR); - GST_DEBUG_OBJECT (videofilter, "format %s", videofilter->format->fourcc); - - videofilter->in_buf = buf; - videofilter->out_buf = outbuf; - - videofilter->format->filter_func (videofilter, GST_BUFFER_DATA (outbuf), - data); - gst_buffer_unref (buf); - - GST_LOG_OBJECT (videofilter, "pushing buffer of %d bytes in '%s'", - GST_BUFFER_SIZE (outbuf), GST_OBJECT_NAME (videofilter)); - - ret = gst_pad_push (videofilter->srcpad, outbuf); - - return ret; - -no_buffer: - { - return ret; - } -} - -static void -gst_videofilter_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec) -{ - GstVideofilter *videofilter; - - g_return_if_fail (GST_IS_VIDEOFILTER (object)); - videofilter = GST_VIDEOFILTER (object); - - GST_DEBUG_OBJECT (videofilter, "gst_videofilter_set_property"); - switch (prop_id) { - default: - break; - } -} - -static void -gst_videofilter_get_property (GObject * object, guint prop_id, GValue * value, - GParamSpec * pspec) -{ - GstVideofilter *videofilter; - - g_return_if_fail (GST_IS_VIDEOFILTER (object)); - videofilter = GST_VIDEOFILTER (object); - - switch (prop_id) { - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -int -gst_videofilter_get_input_width (GstVideofilter * videofilter) -{ - g_return_val_if_fail (GST_IS_VIDEOFILTER (videofilter), 0); - - return videofilter->from_width; -} - -int -gst_videofilter_get_input_height (GstVideofilter * videofilter) -{ - g_return_val_if_fail (GST_IS_VIDEOFILTER (videofilter), 0); - - return videofilter->from_height; -} - -void -gst_videofilter_set_output_size (GstVideofilter * videofilter, - int width, int height) -{ - GstCaps *srccaps; - GstStructure *structure; - - g_return_if_fail (GST_IS_VIDEOFILTER (videofilter)); - - videofilter->to_width = width; - videofilter->to_height = height; - - videofilter->to_buf_size = (videofilter->to_width * videofilter->to_height - * videofilter->format->bpp) / 8; - - //srccaps = gst_caps_copy (gst_pad_get_negotiated_caps (videofilter->srcpad)); - srccaps = gst_caps_copy (GST_PAD_CAPS (videofilter->srcpad)); - structure = gst_caps_get_structure (srccaps, 0); - - gst_structure_set (structure, "width", G_TYPE_INT, width, - "height", G_TYPE_INT, height, NULL); - - gst_pad_set_caps (videofilter->srcpad, srccaps); -} - -void -gst_videofilter_setup (GstVideofilter * videofilter) -{ - GstVideofilterClass *klass; - - GST_DEBUG_OBJECT (videofilter, "setup"); - - klass = GST_VIDEOFILTER_CLASS (G_OBJECT_GET_CLASS (videofilter)); - - if (klass->setup) { - GST_DEBUG_OBJECT (videofilter, "calling class setup method"); - klass->setup (videofilter); - } - - if (videofilter->to_width == 0) { - videofilter->to_width = videofilter->from_width; - } - if (videofilter->to_height == 0) { - videofilter->to_height = videofilter->from_height; - } - - g_return_if_fail (videofilter->format != NULL); - g_return_if_fail (videofilter->from_width > 0); - g_return_if_fail (videofilter->from_height > 0); - g_return_if_fail (videofilter->to_width > 0); - g_return_if_fail (videofilter->to_height > 0); - - videofilter->from_buf_size = - (videofilter->from_width * videofilter->from_height * - videofilter->format->bpp) / 8; - videofilter->to_buf_size = - (videofilter->to_width * videofilter->to_height * - videofilter->format->bpp) / 8; - - GST_DEBUG_OBJECT (videofilter, "from_buf_size %d to_buf_size %d", - videofilter->from_buf_size, videofilter->to_buf_size); - videofilter->inited = TRUE; -} - -GstVideofilterFormat * -gst_videofilter_find_format_by_structure (GstVideofilter * videofilter, - const GstStructure * structure) -{ - int i; - GstVideofilterClass *klass; - GstVideofilterFormat *format; - gboolean ret; - - klass = GST_VIDEOFILTER_CLASS (G_OBJECT_GET_CLASS (videofilter)); - - g_return_val_if_fail (structure != NULL, NULL); - - if (strcmp (gst_structure_get_name (structure), "video/x-raw-yuv") == 0) { - guint32 fourcc; - - ret = gst_structure_get_fourcc (structure, "format", &fourcc); - if (!ret) - return NULL; - for (i = 0; i < klass->formats->len; i++) { - guint32 format_fourcc; - - format = g_ptr_array_index (klass->formats, i); - format_fourcc = GST_STR_FOURCC (format->fourcc); - if (format->depth == 0 && format_fourcc == fourcc) { - return format; - } - } - } else if (strcmp (gst_structure_get_name (structure), "video/x-raw-rgb") - == 0) { - int bpp; - int depth; - int endianness; - int red_mask; - int green_mask; - int blue_mask; - - ret = gst_structure_get_int (structure, "bpp", &bpp); - ret &= gst_structure_get_int (structure, "depth", &depth); - ret &= gst_structure_get_int (structure, "endianness", &endianness); - ret &= gst_structure_get_int (structure, "red_mask", &red_mask); - ret &= gst_structure_get_int (structure, "green_mask", &green_mask); - ret &= gst_structure_get_int (structure, "blue_mask", &blue_mask); - if (!ret) - return NULL; - for (i = 0; i < klass->formats->len; i++) { - format = g_ptr_array_index (klass->formats, i); - if (format->bpp == bpp && format->depth == depth && - format->endianness == endianness && format->red_mask == red_mask && - format->green_mask == green_mask && format->blue_mask == blue_mask) { - return format; - } - } - } - - return NULL; -} - -void -gst_videofilter_class_add_format (GstVideofilterClass * videofilterclass, - GstVideofilterFormat * format) -{ - g_ptr_array_add (videofilterclass->formats, format); -} - -void -gst_videofilter_class_add_pad_templates (GstVideofilterClass * - videofilter_class) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (videofilter_class); - - gst_element_class_add_pad_template (element_class, - gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, - gst_videofilter_class_get_capslist (videofilter_class))); - - gst_element_class_add_pad_template (element_class, - gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, - gst_videofilter_class_get_capslist (videofilter_class))); } |