+++ /dev/null
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include <gst/gst.h>
-#include <gst/video/video.h>
-#include <lcs/lcs.h>
-#include <string.h>
-
-#define GST_TYPE_COLORSPACE \
- (gst_colorspace_get_type())
-#define GST_COLORSPACE(obj) \
- (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_COLORSPACE,GstColorspace))
-#define GST_COLORSPACE_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstColorspace))
-#define GST_IS_COLORSPACE(obj) \
- (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_COLORSPACE))
-#define GST_IS_COLORSPACE_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_COLORSPACE))
-
-typedef struct _GstColorspace GstColorspace;
-typedef struct _GstColorspaceClass GstColorspaceClass;
-
-struct _GstColorspace
-{
- GstElement element;
-
- GstPad *sinkpad, *srcpad;
-
- LCSConverter *converter;
-
- gboolean passthrough;
- gint width, height;
- double framerate;
- gboolean disabled;
-};
-
-struct _GstColorspaceClass
-{
- GstElementClass parent_class;
-};
-
-/* Stereo signals and args */
-enum
-{
- /* FILL ME */
- LAST_SIGNAL
-};
-
-enum
-{
- ARG_0,
- ARG_SOURCE,
- ARG_DEST
-};
-
-static GType gst_colorspace_get_type (void);
-
-static void gst_colorspace_class_init (GstColorspaceClass * klass);
-static void gst_colorspace_base_init (GstColorspaceClass * klass);
-static void gst_colorspace_init (GstColorspace * space);
-
-static void gst_colorspace_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_colorspace_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-static GstPadLinkReturn
-gst_colorspace_link (GstPad * pad, const GstCaps * caps);
-static void gst_colorspace_chain (GstPad * pad, GstData * _data);
-static GstStateChangeReturn gst_colorspace_change_state (GstElement * element,
- GstStateChange transition);
-
-static GstElementClass *parent_class = NULL;
-
-/*static guint gst_colorspace_signals[LAST_SIGNAL] = { 0 }; */
-
-static GstStaticPadTemplate gst_colorspace_src_template =
- GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB "; "
- GST_VIDEO_CAPS_BGR "; "
- GST_VIDEO_CAPS_RGBx "; "
- GST_VIDEO_CAPS_xRGB "; "
- GST_VIDEO_CAPS_BGRx "; "
- GST_VIDEO_CAPS_xBGR "; "
- GST_VIDEO_CAPS_RGB_16 "; "
- GST_VIDEO_CAPS_RGB_15 "; "
- GST_VIDEO_CAPS_YUV ("{ I420, YV12, YUY2, YVYU, UYVY, YUV9, YVU9, "
- "Y800, Y41P, Y41B, Y42B, IUY2 }")
- )
- );
-
-static GstStaticPadTemplate gst_colorspace_sink_template =
- GST_STATIC_PAD_TEMPLATE ("sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB "; "
- GST_VIDEO_CAPS_BGR "; "
- GST_VIDEO_CAPS_RGBx "; "
- GST_VIDEO_CAPS_xRGB "; "
- GST_VIDEO_CAPS_BGRx "; "
- GST_VIDEO_CAPS_xBGR "; "
- GST_VIDEO_CAPS_RGB_16 "; "
- GST_VIDEO_CAPS_RGB_15 "; "
- GST_VIDEO_CAPS_YUV ("{ I420, YV12, YUY2, YVYU, UYVY, YUV9, YVU9, "
- "Y800, Y41P, Y41B, Y42B, IUY2 }")
- )
- );
-
-static const LCSFormat *
-colorspace_find_lcs_format (const GstCaps * caps)
-{
- const LCSFormat *format = NULL;
- const char *name;
- const GstStructure *structure = gst_caps_get_structure (caps, 0);
-
- name = gst_structure_get_name (structure);
-
- if (strcmp (name, "video/x-raw-rgb") == 0) {
- LCSRGBPackedFormat *rgb_fmt = g_new (LCSRGBPackedFormat, 1);
- gint mask;
- gchar *format_name;
- int endianness;
-
- format = (const LCSFormat *) rgb_fmt;
-
- ((LCSFormat *) rgb_fmt)->type = LCS_FORMAT_RGB_PACKED;
- gst_structure_get_int (structure, "bpp",
- &((LCSFormat *) rgb_fmt)->bits_per_pixel);
- gst_structure_get_int (structure, "red_mask", &mask);
- lcs_utils_mask_to_shift (mask, &rgb_fmt->bits_per_component[LCS_R],
- &rgb_fmt->component_bit_offset[LCS_R]);
- gst_structure_get_int (structure, "green_mask", &mask);
- lcs_utils_mask_to_shift (mask, &rgb_fmt->bits_per_component[LCS_G],
- &rgb_fmt->component_bit_offset[LCS_G]);
- gst_structure_get_int (structure, "blue_mask", &mask);
- lcs_utils_mask_to_shift (mask, &rgb_fmt->bits_per_component[LCS_B],
- &rgb_fmt->component_bit_offset[LCS_B]);
- rgb_fmt->bits_per_component[LCS_A] = 0;
- rgb_fmt->component_bit_offset[LCS_A] = 0;
- gst_structure_get_int (structure, "endianness", &endianness);
- rgb_fmt->endianness = endianness;
-
- format_name = g_strdup_printf ("GST_RGB_%d", format->bits_per_pixel);
- lcs_register_format (format_name, (LCSFormat *) rgb_fmt, 1);
- } else if (strcmp (name, "video/x-raw-yuv") == 0) {
- guint32 space;
- gchar fourcc[5];
-
- gst_structure_get_fourcc (structure, "format", &space);
- lcs_utils_fourcc_to_string (space, fourcc);
- fourcc[4] = '\0';
- format = lcs_find_format (fourcc);
- } else {
- g_assert_not_reached ();
- }
-
- return format;
-}
-
-static guint32
-gst_colorspace_caps_get_fourcc (const GstCaps * caps)
-{
- guint32 format;
- GstStructure *structure;
-
- structure = gst_caps_get_structure (caps, 0);
- if (strcmp (gst_structure_get_name (structure), "video/x-raw-rgb") == 0) {
- format = GST_MAKE_FOURCC ('R', 'G', 'B', ' ');
- } else {
- gst_structure_get_fourcc (structure, "format", &format);
- }
- return format;
-}
-
-static gboolean
-colorspace_setup_converter (GstColorspace * space, const GstCaps * from_caps,
- const GstCaps * to_caps)
-{
- const LCSFormat *from_format = NULL;
- const LCSFormat *to_format = NULL;
- guint32 from_space, to_space;
-
- g_return_val_if_fail (to_caps != NULL, FALSE);
- g_return_val_if_fail (from_caps != NULL, FALSE);
-
- from_space = gst_colorspace_caps_get_fourcc (from_caps);
- to_space = gst_colorspace_caps_get_fourcc (to_caps);
-
- from_format = colorspace_find_lcs_format (from_caps);
- to_format = colorspace_find_lcs_format (to_caps);
-
- GST_DEBUG ("trying from " GST_FOURCC_FORMAT " to " GST_FOURCC_FORMAT,
- GST_FOURCC_ARGS (from_space), GST_FOURCC_ARGS (to_space));
- space->converter = lcs_find_converter (from_format, to_format, LCS_FLAG_FAST);
-
- if (space->converter) {
- GST_DEBUG ("trying from " GST_FOURCC_FORMAT " to " GST_FOURCC_FORMAT,
- GST_FOURCC_ARGS (from_space), GST_FOURCC_ARGS (to_space));
- space->disabled = FALSE;
- return TRUE;
- }
-
- return FALSE;
-}
-
-static GstCaps *
-gst_colorspace_getcaps (GstPad * pad)
-{
-#if unused
- GstColorspace *space;
- GstCaps *result;
- GstCaps *peercaps;
- GstCaps *ourcaps;
-
- space = GST_COLORSPACE (gst_pad_get_parent (pad));
-
- /* we can do everything our peer can... */
- peercaps = gst_caps_copy (gst_pad_get_allowed_caps (space->srcpad));
- /* and our own template of course */
- ourcaps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
-
- /* merge them together, we prefer the peercaps first */
- result = gst_caps_prepend (ourcaps, peercaps);
-
- return result;
-#endif
- return gst_caps_copy (gst_pad_get_pad_template_caps (pad));
-}
-
-static GstPadLinkReturn
-gst_colorspace_link (GstPad * pad, const GstCaps * caps)
-{
- GstStructure *structure;
- GstPad *otherpad;
- GstCaps *othercaps;
- GstColorspace *space;
- int width;
- int height;
- double framerate;
- GstPadLinkReturn ret;
-
- space = GST_COLORSPACE (gst_pad_get_parent (pad));
-
- otherpad = (pad == space->srcpad) ? space->sinkpad : space->srcpad;
-
- structure = gst_caps_get_structure (caps, 0);
-
- gst_structure_get_int (structure, "width", &width);
- gst_structure_get_int (structure, "height", &height);
- gst_structure_get_double (structure, "framerate", &framerate);
-
- ret = gst_pad_try_set_caps (otherpad, caps);
- if (GST_PAD_LINK_SUCCESSFUL (ret)) {
- /* passthrough */
- space->passthrough = TRUE;
- return GST_PAD_LINK_OK;
- }
- space->passthrough = FALSE;
-
- if (gst_pad_is_negotiated (otherpad)) {
- othercaps = gst_caps_copy (gst_pad_get_negotiated_caps (otherpad));
-
- gst_caps_set_simple (othercaps,
- "width", G_TYPE_INT, width,
- "height", G_TYPE_INT, height,
- "framerate", G_TYPE_DOUBLE, framerate, NULL);
-
- ret = gst_pad_try_set_caps (otherpad, othercaps);
- if (!GST_PAD_LINK_SUCCESSFUL (ret)) {
- return ret;
- }
-
- if (colorspace_setup_converter (space, caps, othercaps)) {
-
- space->width = width;
- space->height = height;
- space->framerate = framerate;
- } else {
- return GST_PAD_LINK_REFUSED;
- }
- }
-
- return GST_PAD_LINK_OK;
-}
-
-static GType
-gst_colorspace_get_type (void)
-{
- static GType colorspace_type = 0;
-
- if (!colorspace_type) {
- static const GTypeInfo colorspace_info = {
- sizeof (GstColorspaceClass),
- (GBaseInitFunc) gst_colorspace_base_init,
- NULL,
- (GClassInitFunc) gst_colorspace_class_init,
- NULL,
- NULL,
- sizeof (GstColorspace),
- 0,
- (GInstanceInitFunc) gst_colorspace_init,
- };
-
- colorspace_type =
- g_type_register_static (GST_TYPE_ELEMENT, "GstColorspaceLCS",
- &colorspace_info, 0);
- }
- return colorspace_type;
-}
-
-static void
-gst_colorspace_base_init (GstColorspaceClass * klass)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_colorspace_src_template));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_colorspace_sink_template));
- gst_element_class_set_details_simple (element_class, "Colorspace converter",
- "Filter/Effect",
- "Converts video from one colorspace to another",
- "Wim Taymans <wim.taymans@chello.be>");
-}
-
-static void
-gst_colorspace_class_init (GstColorspaceClass * klass)
-{
- GObjectClass *gobject_class;
- GstElementClass *gstelement_class;
-
- gobject_class = (GObjectClass *) klass;
- gstelement_class = (GstElementClass *) klass;
-
- parent_class = g_type_class_peek_parent (klass);
-
- gobject_class->set_property = gst_colorspace_set_property;
- gobject_class->get_property = gst_colorspace_get_property;
-
- gstelement_class->change_state = gst_colorspace_change_state;
-}
-
-static void
-gst_colorspace_init (GstColorspace * space)
-{
- space->sinkpad =
- gst_pad_new_from_static_template (&gst_colorspace_sink_template, "sink");
- gst_pad_set_link_function (space->sinkpad, gst_colorspace_link);
- gst_pad_set_getcaps_function (space->sinkpad, gst_colorspace_getcaps);
- gst_pad_set_chain_function (space->sinkpad, gst_colorspace_chain);
- gst_element_add_pad (GST_ELEMENT (space), space->sinkpad);
-
- space->srcpad =
- gst_pad_new_from_static_template (&gst_colorspace_src_template, "src");
- gst_element_add_pad (GST_ELEMENT (space), space->srcpad);
- gst_pad_set_link_function (space->srcpad, gst_colorspace_link);
-
- space->disabled = TRUE;
-}
-
-static void
-gst_colorspace_chain (GstPad * pad, GstData * _data)
-{
- GstBuffer *buf = GST_BUFFER (_data);
- GstColorspace *space;
- GstBuffer *outbuf;
-
- g_return_if_fail (pad != NULL);
- g_return_if_fail (GST_IS_PAD (pad));
- g_return_if_fail (buf != NULL);
-
- space = GST_COLORSPACE (gst_pad_get_parent (pad));
-
- g_return_if_fail (space != NULL);
- g_return_if_fail (GST_IS_COLORSPACE (space));
-
- if (space->passthrough) {
- outbuf = buf;
- } else {
- unsigned long size;
-
- lcs_format_buffer_size (lcs_converter_get_dest_format (space->converter),
- space->width, space->height, &size);
-
- outbuf =
- gst_pad_alloc_buffer_and_set_caps (space->srcpad,
- GST_BUFFER_OFFSET_NONE, size);
-
- lcs_convert_auto (space->converter,
- GST_BUFFER_DATA (buf),
- GST_BUFFER_DATA (outbuf), space->width, space->height);
-
- GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
- GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
-
- gst_buffer_unref (buf);
- }
- gst_pad_push (space->srcpad, GST_DATA (outbuf));
-}
-
-static GstStateChangeReturn
-gst_colorspace_change_state (GstElement * element, GstStateChange transition)
-{
- GstColorspace *space;
-
- space = GST_COLORSPACE (element);
-
- switch (transition) {
- case GST_STATE_CHANGE_PAUSED_TO_READY:
- break;
- }
-
- parent_class->change_state (element, transition);
-
- return GST_STATE_CHANGE_SUCCESS;
-}
-
-static void
-gst_colorspace_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstColorspace *space;
-
- g_return_if_fail (GST_IS_COLORSPACE (object));
- space = GST_COLORSPACE (object);
-
- switch (prop_id) {
- default:
- break;
- }
-}
-
-static void
-gst_colorspace_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
-{
- GstColorspace *space;
-
- g_return_if_fail (GST_IS_COLORSPACE (object));
- space = GST_COLORSPACE (object);
-
- switch (prop_id) {
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
- lcs_init (NULL, NULL);
-
- return gst_element_register (plugin, "lcscolorspace", GST_RANK_NONE,
- GST_TYPE_COLORSPACE);
-}
-
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- lcscolorspace,
- "LCS colorspace convertor",
- plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
projects / platform / upstream / gstreamer.git / commitdiff