mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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Original commit message from CVS: first batch : remove ',' at end of enums as they could confuse older gcc, foreign compilers (forte) and gtk-doc
558 lines
15 KiB
C
558 lines
15 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*#define DEBUG_ENABLED */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gstvideotestsrc.h>
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#include <videotestsrc.h>
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#include <string.h>
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#include <stdlib.h>
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#ifdef HAVE_LIBOIL
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#include <liboil/liboil.h>
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#endif
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/* elementfactory information */
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static GstElementDetails videotestsrc_details =
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GST_ELEMENT_DETAILS ("Video test source",
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"Source/Video",
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"Creates a test video stream",
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"David A. Schleef <ds@schleef.org>");
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/* GstVideotestsrc signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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enum
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{
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ARG_0,
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ARG_TYPE,
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ARG_SYNC,
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ARG_NUM_BUFFERS
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/* FILL ME */
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};
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static void gst_videotestsrc_base_init (gpointer g_class);
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static void gst_videotestsrc_class_init (GstVideotestsrcClass * klass);
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static void gst_videotestsrc_init (GstVideotestsrc * videotestsrc);
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static GstElementStateReturn gst_videotestsrc_change_state (GstElement *
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element);
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static void gst_videotestsrc_set_clock (GstElement * element, GstClock * clock);
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static void gst_videotestsrc_set_pattern (GstVideotestsrc * src,
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int pattern_type);
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static void gst_videotestsrc_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_videotestsrc_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstData *gst_videotestsrc_get (GstPad * pad);
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static const GstQueryType *gst_videotestsrc_get_query_types (GstPad * pad);
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static gboolean gst_videotestsrc_src_query (GstPad * pad,
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GstQueryType type, GstFormat * format, gint64 * value);
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static GstElementClass *parent_class = NULL;
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static GstCaps *gst_videotestsrc_get_capslist (void);
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#if 0
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static GstCaps *gst_videotestsrc_get_capslist_size (int width, int height,
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double rate);
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#endif
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static GstPadTemplate *
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gst_videotestsrc_src_template_factory (void)
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{
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return gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
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gst_videotestsrc_get_capslist ());
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}
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GType
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gst_videotestsrc_get_type (void)
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{
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static GType videotestsrc_type = 0;
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if (!videotestsrc_type) {
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static const GTypeInfo videotestsrc_info = {
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sizeof (GstVideotestsrcClass),
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gst_videotestsrc_base_init,
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NULL,
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(GClassInitFunc) gst_videotestsrc_class_init,
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NULL,
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NULL,
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sizeof (GstVideotestsrc),
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0,
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(GInstanceInitFunc) gst_videotestsrc_init,
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};
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videotestsrc_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstVideotestsrc",
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&videotestsrc_info, 0);
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}
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return videotestsrc_type;
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}
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#define GST_TYPE_VIDEOTESTSRC_PATTERN (gst_videotestsrc_pattern_get_type ())
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static GType
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gst_videotestsrc_pattern_get_type (void)
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{
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static GType videotestsrc_pattern_type = 0;
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static GEnumValue pattern_types[] = {
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{GST_VIDEOTESTSRC_SMPTE, "smpte", "SMPTE 100% color bars"},
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{GST_VIDEOTESTSRC_SNOW, "snow", "Random (television snow)"},
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{GST_VIDEOTESTSRC_BLACK, "black", "0% Black"},
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{0, NULL, NULL},
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};
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if (!videotestsrc_pattern_type) {
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videotestsrc_pattern_type =
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g_enum_register_static ("GstVideotestsrcPattern", pattern_types);
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}
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return videotestsrc_pattern_type;
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}
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static void
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gst_videotestsrc_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_set_details (element_class, &videotestsrc_details);
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gst_element_class_add_pad_template (element_class,
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gst_videotestsrc_src_template_factory ());
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}
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static void
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gst_videotestsrc_class_init (GstVideotestsrcClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TYPE,
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g_param_spec_enum ("pattern", "Pattern",
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"Type of test pattern to generate", GST_TYPE_VIDEOTESTSRC_PATTERN, 1,
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G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SYNC,
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g_param_spec_boolean ("sync", "Sync", "Synchronize to clock", TRUE,
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G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_NUM_BUFFERS,
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g_param_spec_int ("num-buffers", "num-buffers",
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"Number of buffers to output before sending EOS", -1, G_MAXINT,
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0, G_PARAM_READWRITE));
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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gobject_class->set_property = gst_videotestsrc_set_property;
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gobject_class->get_property = gst_videotestsrc_get_property;
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gstelement_class->change_state = gst_videotestsrc_change_state;
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gstelement_class->set_clock = gst_videotestsrc_set_clock;
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}
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static void
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gst_videotestsrc_set_clock (GstElement * element, GstClock * clock)
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{
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GstVideotestsrc *v;
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v = GST_VIDEOTESTSRC (element);
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gst_object_replace ((GstObject **) & v->clock, (GstObject *) clock);
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}
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static GstCaps *
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gst_videotestsrc_src_fixate (GstPad * pad, const GstCaps * caps)
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{
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GstStructure *structure;
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GstCaps *newcaps;
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/* FIXME this function isn't very intelligent in choosing "good" caps */
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if (gst_caps_get_size (caps) > 1)
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return NULL;
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newcaps = gst_caps_copy (caps);
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structure = gst_caps_get_structure (newcaps, 0);
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if (gst_caps_structure_fixate_field_nearest_int (structure, "width", 320)) {
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return newcaps;
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}
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if (gst_caps_structure_fixate_field_nearest_int (structure, "height", 240)) {
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return newcaps;
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}
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if (gst_caps_structure_fixate_field_nearest_double (structure, "framerate",
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30.0)) {
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return newcaps;
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}
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/* failed to fixate */
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gst_caps_free (newcaps);
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return NULL;
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}
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static GstPadLinkReturn
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gst_videotestsrc_src_link (GstPad * pad, const GstCaps * caps)
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{
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GstVideotestsrc *videotestsrc;
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const GstStructure *structure;
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GstPadLinkReturn ret;
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GST_DEBUG ("gst_videotestsrc_src_link");
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videotestsrc = GST_VIDEOTESTSRC (gst_pad_get_parent (pad));
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structure = gst_caps_get_structure (caps, 0);
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videotestsrc->fourcc = paintinfo_find_by_structure (structure);
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if (!videotestsrc->fourcc) {
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g_critical ("videotestsrc format not found\n");
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return GST_PAD_LINK_REFUSED;
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}
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ret = gst_structure_get_int (structure, "width", &videotestsrc->width);
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ret &= gst_structure_get_int (structure, "height", &videotestsrc->height);
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ret &= gst_structure_get_double (structure, "framerate", &videotestsrc->rate);
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if (!ret)
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return GST_PAD_LINK_REFUSED;
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videotestsrc->bpp = videotestsrc->fourcc->bitspp;
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GST_DEBUG ("size %d x %d", videotestsrc->width, videotestsrc->height);
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return GST_PAD_LINK_OK;
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}
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static void
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gst_videotestsrc_src_unlink (GstPad * pad)
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{
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GstVideotestsrc *videotestsrc;
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videotestsrc = GST_VIDEOTESTSRC (gst_pad_get_parent (pad));
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}
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static GstElementStateReturn
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gst_videotestsrc_change_state (GstElement * element)
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{
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GstVideotestsrc *videotestsrc;
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videotestsrc = GST_VIDEOTESTSRC (element);
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switch (GST_STATE_TRANSITION (element)) {
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case GST_STATE_NULL_TO_READY:
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break;
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case GST_STATE_READY_TO_PAUSED:
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videotestsrc->num_buffers_left = videotestsrc->num_buffers;
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break;
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case GST_STATE_PAUSED_TO_PLAYING:
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break;
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case GST_STATE_PLAYING_TO_PAUSED:
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break;
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case GST_STATE_PAUSED_TO_READY:
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videotestsrc->timestamp_offset = 0;
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videotestsrc->n_frames = 0;
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break;
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case GST_STATE_READY_TO_NULL:
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break;
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}
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return parent_class->change_state (element);
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}
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static GstCaps *
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gst_videotestsrc_get_capslist (void)
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{
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GstCaps *caps;
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GstStructure *structure;
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int i;
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caps = gst_caps_new_empty ();
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for (i = 0; i < n_fourccs; i++) {
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structure = paint_get_structure (fourcc_list + i);
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gst_structure_set (structure,
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"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
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"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
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"framerate", GST_TYPE_DOUBLE_RANGE, 0.0, G_MAXDOUBLE, NULL);
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gst_caps_append_structure (caps, structure);
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}
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return caps;
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}
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#if 0
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static GstCaps *
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gst_videotestsrc_get_capslist_size (int width, int height, double rate)
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{
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GstCaps *caps;
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GstStructure *structure;
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int i;
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caps = gst_caps_new_empty ();
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for (i = 0; i < n_fourccs; i++) {
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structure = paint_get_structure (fourcc_list + i);
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gst_structure_set (structure,
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"width", G_TYPE_INT, width,
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"height", G_TYPE_INT, height, "framerate", G_TYPE_INT, rate, NULL);
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gst_caps_append_structure (caps, structure);
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}
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return caps;
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}
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#endif
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static GstCaps *
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gst_videotestsrc_getcaps (GstPad * pad)
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{
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GstVideotestsrc *vts;
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vts = GST_VIDEOTESTSRC (gst_pad_get_parent (pad));
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return gst_videotestsrc_get_capslist ();
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}
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static void
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gst_videotestsrc_init (GstVideotestsrc * videotestsrc)
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{
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GST_DEBUG ("gst_videotestsrc_init");
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videotestsrc->srcpad =
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gst_pad_new_from_template (gst_videotestsrc_src_template_factory (),
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"src");
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gst_pad_set_getcaps_function (videotestsrc->srcpad, gst_videotestsrc_getcaps);
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gst_pad_set_fixate_function (videotestsrc->srcpad,
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gst_videotestsrc_src_fixate);
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gst_element_add_pad (GST_ELEMENT (videotestsrc), videotestsrc->srcpad);
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gst_pad_set_get_function (videotestsrc->srcpad, gst_videotestsrc_get);
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gst_pad_set_link_function (videotestsrc->srcpad, gst_videotestsrc_src_link);
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gst_pad_set_unlink_function (videotestsrc->srcpad,
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gst_videotestsrc_src_unlink);
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gst_pad_set_query_function (videotestsrc->srcpad, gst_videotestsrc_src_query);
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gst_pad_set_query_type_function (videotestsrc->srcpad,
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gst_videotestsrc_get_query_types);
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gst_videotestsrc_set_pattern (videotestsrc, GST_VIDEOTESTSRC_SMPTE);
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videotestsrc->num_buffers = -1;
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videotestsrc->num_buffers_left = -1;
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videotestsrc->sync = TRUE;
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}
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static const GstQueryType *
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gst_videotestsrc_get_query_types (GstPad * pad)
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{
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static const GstQueryType query_types[] = {
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GST_QUERY_POSITION,
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0,
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};
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return query_types;
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}
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static gboolean
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gst_videotestsrc_src_query (GstPad * pad,
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GstQueryType type, GstFormat * format, gint64 * value)
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{
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gboolean res = FALSE;
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GstVideotestsrc *videotestsrc = GST_VIDEOTESTSRC (gst_pad_get_parent (pad));
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switch (type) {
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case GST_QUERY_POSITION:
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switch (*format) {
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case GST_FORMAT_TIME:
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*value =
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videotestsrc->n_frames * GST_SECOND / (double) videotestsrc->rate;
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res = TRUE;
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break;
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case GST_FORMAT_DEFAULT: /* frames */
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*value = videotestsrc->n_frames;
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res = TRUE;
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break;
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default:
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break;
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}
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break;
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default:
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break;
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}
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return res;
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}
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static GstData *
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gst_videotestsrc_get (GstPad * pad)
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{
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GstVideotestsrc *videotestsrc;
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gulong newsize;
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GstBuffer *buf;
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GST_DEBUG ("gst_videotestsrc_get");
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g_return_val_if_fail (pad != NULL, NULL);
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g_return_val_if_fail (GST_IS_PAD (pad), NULL);
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videotestsrc = GST_VIDEOTESTSRC (gst_pad_get_parent (pad));
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if (videotestsrc->fourcc == NULL) {
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GST_ELEMENT_ERROR (videotestsrc, CORE, NEGOTIATION, (NULL),
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("format wasn't negotiated before get function"));
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return NULL;
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}
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newsize = gst_videotestsrc_get_size (videotestsrc, videotestsrc->width,
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videotestsrc->height);
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g_return_val_if_fail (newsize > 0, NULL);
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GST_DEBUG ("size=%ld %dx%d", newsize, videotestsrc->width,
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videotestsrc->height);
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buf = gst_pad_alloc_buffer (pad, GST_BUFFER_OFFSET_NONE, newsize);
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g_return_val_if_fail (GST_BUFFER_DATA (buf) != NULL, NULL);
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videotestsrc->make_image (videotestsrc, (void *) GST_BUFFER_DATA (buf),
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videotestsrc->width, videotestsrc->height);
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if (videotestsrc->sync) {
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GST_BUFFER_TIMESTAMP (buf) = videotestsrc->timestamp_offset +
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(videotestsrc->n_frames * GST_SECOND) / (double) videotestsrc->rate;
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videotestsrc->n_frames++;
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/* FIXME this is not correct if we do QoS */
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if (videotestsrc->clock) {
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gst_element_wait (GST_ELEMENT (videotestsrc), GST_BUFFER_TIMESTAMP (buf));
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}
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} else {
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GST_BUFFER_TIMESTAMP (buf) = videotestsrc->timestamp_offset +
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(videotestsrc->n_frames * GST_SECOND) / (double) videotestsrc->rate;
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videotestsrc->n_frames++;
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}
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GST_BUFFER_DURATION (buf) = GST_SECOND / (double) videotestsrc->rate;
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if (videotestsrc->num_buffers_left == 0) {
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gst_element_set_eos (GST_ELEMENT (videotestsrc));
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return GST_DATA (gst_event_new (GST_EVENT_EOS));
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} else {
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if (videotestsrc->num_buffers_left > 0)
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videotestsrc->num_buffers_left--;
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}
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return GST_DATA (buf);
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}
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static void
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gst_videotestsrc_set_pattern (GstVideotestsrc * src, int pattern_type)
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{
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src->type = pattern_type;
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GST_DEBUG ("setting pattern to %d\n", pattern_type);
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switch (pattern_type) {
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case GST_VIDEOTESTSRC_SMPTE:
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src->make_image = gst_videotestsrc_smpte;
|
|
break;
|
|
case GST_VIDEOTESTSRC_SNOW:
|
|
src->make_image = gst_videotestsrc_snow;
|
|
break;
|
|
case GST_VIDEOTESTSRC_BLACK:
|
|
src->make_image = gst_videotestsrc_black;
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_videotestsrc_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstVideotestsrc *src;
|
|
|
|
/* it's not null if we got it, but it might not be ours */
|
|
g_return_if_fail (GST_IS_VIDEOTESTSRC (object));
|
|
src = GST_VIDEOTESTSRC (object);
|
|
|
|
GST_DEBUG ("gst_videotestsrc_set_property");
|
|
switch (prop_id) {
|
|
case ARG_TYPE:
|
|
gst_videotestsrc_set_pattern (src, g_value_get_enum (value));
|
|
break;
|
|
case ARG_SYNC:
|
|
src->sync = g_value_get_boolean (value);
|
|
break;
|
|
case ARG_NUM_BUFFERS:
|
|
src->num_buffers = g_value_get_int (value);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_videotestsrc_get_property (GObject * object, guint prop_id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstVideotestsrc *src;
|
|
|
|
/* it's not null if we got it, but it might not be ours */
|
|
g_return_if_fail (GST_IS_VIDEOTESTSRC (object));
|
|
src = GST_VIDEOTESTSRC (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_TYPE:
|
|
g_value_set_enum (value, src->type);
|
|
break;
|
|
case ARG_SYNC:
|
|
g_value_set_boolean (value, src->sync);
|
|
break;
|
|
case ARG_NUM_BUFFERS:
|
|
g_value_set_int (value, src->num_buffers);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
#ifdef HAVE_LIBOIL
|
|
oil_init ();
|
|
#endif
|
|
|
|
return gst_element_register (plugin, "videotestsrc", GST_RANK_NONE,
|
|
GST_TYPE_VIDEOTESTSRC);
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"videotestsrc",
|
|
"Creates a test video stream",
|
|
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN)
|