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914d0e0ad5
Original commit message from CVS: * gst/videotestsrc/Makefile.am: * gst/videotestsrc/gstvideotestsrc.c: (gst_videotestsrc_get_type), (gst_videotestsrc_class_init), (gst_videotestsrc_negotiate), (gst_videotestsrc_setcaps), (gst_videotestsrc_getcaps), (gst_videotestsrc_init), (gst_videotestsrc_event), (gst_videotestsrc_create), (gst_videotestsrc_start), (gst_videotestsrc_stop), (gst_videotestsrc_get_times), (gst_videotestsrc_set_pattern), (gst_videotestsrc_set_property), (gst_videotestsrc_get_property): * gst/videotestsrc/gstvideotestsrc.h: Make videotestsrc a pushsrc.
601 lines
16 KiB
C
601 lines
16 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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#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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#include <liboil/liboil.h>
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GST_DEBUG_CATEGORY (videotestsrc_debug);
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#define GST_CAT_DEFAULT videotestsrc_debug
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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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ARG_TIMESTAMP_OFFSET,
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/* FILL ME */
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};
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static GstCaps *capslist = NULL;
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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 void gst_videotestsrc_set_pattern (GstVideotestsrc * videotestsrc,
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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 GstCaps *gst_videotestsrc_getcaps (GstBaseSrc * bsrc);
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static gboolean gst_videotestsrc_setcaps (GstBaseSrc * bsrc, GstCaps * caps);
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static gboolean gst_videotestsrc_negotiate (GstBaseSrc * bsrc);
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static gboolean gst_videotestsrc_start (GstBaseSrc * src);
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static gboolean gst_videotestsrc_stop (GstBaseSrc * src);
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static void gst_videotestsrc_get_times (GstBaseSrc * src, GstBuffer * buffer,
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GstClockTime * start, GstClockTime * end);
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static GstFlowReturn gst_videotestsrc_create (GstPushSrc * psrc,
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GstBuffer ** buffer);
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#if 0
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static const GstEventMask *gst_videotestsrc_get_event_masks (GstPad * pad);
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#endif
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static gboolean gst_videotestsrc_event (GstBaseSrc * bsrc, GstEvent * event);
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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_PUSH_SRC, "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", "100% 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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GstBaseSrcClass *gstbasesrc_class;
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GstPushSrcClass *gstpushsrc_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbasesrc_class = (GstBaseSrcClass *) klass;
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gstpushsrc_class = (GstPushSrcClass *) klass;
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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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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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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TIMESTAMP_OFFSET,
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g_param_spec_int64 ("timestamp-offset", "Timestamp offset",
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"An offset added to timestamps set on buffers (in ns)",
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G_MININT64, G_MAXINT64, 0, G_PARAM_READWRITE));
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parent_class = g_type_class_ref (GST_TYPE_PUSH_SRC);
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GST_DEBUG_CATEGORY_INIT (videotestsrc_debug, "videotestsrc", 0,
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"Video Test Source");
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gstbasesrc_class->get_caps = gst_videotestsrc_getcaps;
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gstbasesrc_class->set_caps = gst_videotestsrc_setcaps;
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gstbasesrc_class->negotiate = gst_videotestsrc_negotiate;
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gstbasesrc_class->start = gst_videotestsrc_start;
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gstbasesrc_class->stop = gst_videotestsrc_stop;
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gstbasesrc_class->get_times = gst_videotestsrc_get_times;
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gstbasesrc_class->event = gst_videotestsrc_event;
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gstpushsrc_class->create = gst_videotestsrc_create;
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}
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static gboolean
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gst_videotestsrc_negotiate (GstBaseSrc * bsrc)
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{
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GstCaps *caps;
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GstCaps *temp;
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gboolean result = FALSE;
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/* get all possible caps on this link */
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caps = gst_pad_get_allowed_caps (GST_BASE_SRC_PAD (bsrc));
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temp = gst_caps_normalize (caps);
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gst_caps_unref (caps);
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caps = temp;
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if (gst_caps_get_size (caps) > 0) {
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GstStructure *structure;
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/* pick the first one */
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temp = gst_caps_copy_nth (caps, 0);
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gst_caps_unref (caps);
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caps = temp;
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structure = gst_caps_get_structure (caps, 0);
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gst_caps_structure_fixate_field_nearest_int (structure, "width", 320);
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gst_caps_structure_fixate_field_nearest_int (structure, "height", 240);
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gst_caps_structure_fixate_field_nearest_double (structure, "framerate",
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30.0);
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result = gst_pad_set_caps (GST_BASE_SRC_PAD (bsrc), caps);
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gst_caps_unref (caps);
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}
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return result;
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}
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static gboolean
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gst_videotestsrc_parse_caps (const GstCaps * caps,
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gint * width, gint * height, gdouble * rate,
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struct fourcc_list_struct **fourcc)
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{
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const GstStructure *structure;
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GstPadLinkReturn ret;
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GST_DEBUG ("parsing caps");
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if (gst_caps_get_size (caps) < 1)
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return FALSE;
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structure = gst_caps_get_structure (caps, 0);
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*fourcc = paintinfo_find_by_structure (structure);
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if (!*fourcc) {
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g_critical ("videotestsrc format not found");
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return FALSE;
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}
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ret = gst_structure_get_int (structure, "width", width);
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ret &= gst_structure_get_int (structure, "height", height);
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ret &= gst_structure_get_double (structure, "framerate", rate);
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return ret;
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}
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#if 0
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static gboolean
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gst_videotestsrc_src_accept_caps (GstPad * pad, const GstCaps * caps)
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{
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gint width, height;
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gdouble rate;
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struct fourcc_list_struct *fourcc;
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return gst_videotestsrc_parse_caps (caps, &width, &height, &rate, &fourcc);
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}
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#endif
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static gboolean
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gst_videotestsrc_setcaps (GstBaseSrc * bsrc, GstCaps * caps)
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{
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gboolean res;
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gint width, height;
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gdouble rate;
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struct fourcc_list_struct *fourcc;
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GstVideotestsrc *videotestsrc;
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videotestsrc = GST_VIDEOTESTSRC (bsrc);
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res = gst_videotestsrc_parse_caps (caps, &width, &height, &rate, &fourcc);
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if (res) {
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/* looks ok here */
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videotestsrc->fourcc = fourcc;
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videotestsrc->width = width;
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videotestsrc->height = height;
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videotestsrc->rate = rate;
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videotestsrc->bpp = videotestsrc->fourcc->bitspp;
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GST_DEBUG_OBJECT (videotestsrc, "size %dx%d, %f fps", videotestsrc->width,
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videotestsrc->height, videotestsrc->rate);
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}
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return res;
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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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return gst_caps_copy (capslist);
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}
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static void
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generate_capslist (void)
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{
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if (!capslist) {
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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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capslist = caps;
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}
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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 (GstBaseSrc * bsrc)
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{
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GstVideotestsrc *vts;
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vts = GST_VIDEOTESTSRC (bsrc);
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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_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->segment_start_frame = -1;
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videotestsrc->segment_end_frame = -1;
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videotestsrc->timestamp_offset = 0;
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}
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#if 0
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static const GstEventMask *
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gst_videotestsrc_get_event_masks (GstPad * pad)
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{
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static const GstEventMask src_event_masks[] = {
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{GST_EVENT_SEEK, GST_SEEK_METHOD_SET | GST_SEEK_FLAG_FLUSH},
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{0,}
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};
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return src_event_masks;
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}
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#endif
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static gboolean
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gst_videotestsrc_event (GstBaseSrc * bsrc, GstEvent * event)
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{
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gboolean res = TRUE;
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GstVideotestsrc *videotestsrc;
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gint64 new_n_frames;
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videotestsrc = GST_VIDEOTESTSRC (bsrc);
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new_n_frames = videotestsrc->n_frames;
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_SEEK:
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{
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switch (GST_EVENT_SEEK_FORMAT (event)) {
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case GST_FORMAT_TIME:
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new_n_frames =
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GST_EVENT_SEEK_OFFSET (event) * (double) videotestsrc->rate /
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GST_SECOND;
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videotestsrc->segment_start_frame = new_n_frames;
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videotestsrc->segment_end_frame =
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GST_EVENT_SEEK_ENDOFFSET (event) * (double) videotestsrc->rate /
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GST_SECOND;
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videotestsrc->segment =
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GST_EVENT_SEEK_TYPE (event) & GST_SEEK_FLAG_SEGMENT_LOOP;
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break;
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case GST_FORMAT_DEFAULT:
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new_n_frames = GST_EVENT_SEEK_OFFSET (event);
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videotestsrc->segment_start_frame = new_n_frames;
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videotestsrc->segment_end_frame = GST_EVENT_SEEK_ENDOFFSET (event);
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videotestsrc->segment =
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GST_EVENT_SEEK_TYPE (event) & GST_SEEK_FLAG_SEGMENT_LOOP;
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break;
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default:
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res = FALSE;
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break;
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}
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break;
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}
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default:
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res = FALSE;
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break;
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}
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if (videotestsrc->n_frames != new_n_frames) {
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videotestsrc->n_frames = new_n_frames;
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}
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return res;
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}
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static GstFlowReturn
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gst_videotestsrc_create (GstPushSrc * psrc, GstBuffer ** buffer)
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{
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GstVideotestsrc *videotestsrc;
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gulong newsize;
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GstBuffer *outbuf;
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GstFlowReturn res;
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videotestsrc = GST_VIDEOTESTSRC (psrc);
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if (videotestsrc->fourcc == NULL)
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goto not_negotiated;
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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, GST_FLOW_ERROR);
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GST_LOG_OBJECT (videotestsrc, "creating buffer of %ld bytes for %dx%d image",
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newsize, videotestsrc->width, videotestsrc->height);
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res =
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gst_pad_alloc_buffer (GST_BASE_SRC_PAD (psrc), GST_BUFFER_OFFSET_NONE,
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newsize, GST_PAD_CAPS (GST_BASE_SRC_PAD (psrc)), &outbuf);
|
|
if (res != GST_FLOW_OK)
|
|
goto no_buffer;
|
|
|
|
videotestsrc->make_image (videotestsrc, (void *) GST_BUFFER_DATA (outbuf),
|
|
videotestsrc->width, videotestsrc->height);
|
|
|
|
GST_BUFFER_TIMESTAMP (outbuf) = videotestsrc->timestamp_offset +
|
|
videotestsrc->running_time;
|
|
GST_BUFFER_DURATION (outbuf) = GST_SECOND / (double) videotestsrc->rate;
|
|
|
|
videotestsrc->n_frames++;
|
|
videotestsrc->running_time += GST_BUFFER_DURATION (outbuf);
|
|
|
|
*buffer = outbuf;
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
not_negotiated:
|
|
{
|
|
GST_ELEMENT_ERROR (videotestsrc, CORE, NEGOTIATION, (NULL),
|
|
("format wasn't negotiated before get function"));
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
}
|
|
no_buffer:
|
|
{
|
|
return res;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_videotestsrc_start (GstBaseSrc * src)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_videotestsrc_stop (GstBaseSrc * src)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_videotestsrc_get_times (GstBaseSrc * src, GstBuffer * buffer,
|
|
GstClockTime * start, GstClockTime * end)
|
|
{
|
|
*start = GST_CLOCK_TIME_NONE;
|
|
*end = GST_CLOCK_TIME_NONE;
|
|
}
|
|
|
|
|
|
static void
|
|
gst_videotestsrc_set_pattern (GstVideotestsrc * videotestsrc, int pattern_type)
|
|
{
|
|
videotestsrc->pattern_type = pattern_type;
|
|
|
|
GST_DEBUG_OBJECT (videotestsrc, "setting pattern to %d", pattern_type);
|
|
switch (pattern_type) {
|
|
case GST_VIDEOTESTSRC_SMPTE:
|
|
videotestsrc->make_image = gst_videotestsrc_smpte;
|
|
break;
|
|
case GST_VIDEOTESTSRC_SNOW:
|
|
videotestsrc->make_image = gst_videotestsrc_snow;
|
|
break;
|
|
case GST_VIDEOTESTSRC_BLACK:
|
|
videotestsrc->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 *videotestsrc;
|
|
|
|
g_return_if_fail (GST_IS_VIDEOTESTSRC (object));
|
|
videotestsrc = GST_VIDEOTESTSRC (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_TYPE:
|
|
gst_videotestsrc_set_pattern (videotestsrc, g_value_get_enum (value));
|
|
break;
|
|
case ARG_NUM_BUFFERS:
|
|
videotestsrc->num_buffers = g_value_get_int (value);
|
|
break;
|
|
case ARG_TIMESTAMP_OFFSET:
|
|
videotestsrc->timestamp_offset = g_value_get_int64 (value);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_videotestsrc_get_property (GObject * object, guint prop_id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstVideotestsrc *videotestsrc;
|
|
|
|
g_return_if_fail (GST_IS_VIDEOTESTSRC (object));
|
|
videotestsrc = GST_VIDEOTESTSRC (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_TYPE:
|
|
g_value_set_enum (value, videotestsrc->pattern_type);
|
|
break;
|
|
case ARG_NUM_BUFFERS:
|
|
g_value_set_int (value, videotestsrc->num_buffers);
|
|
break;
|
|
case ARG_TIMESTAMP_OFFSET:
|
|
g_value_set_int64 (value, videotestsrc->timestamp_offset);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
oil_init ();
|
|
|
|
generate_capslist ();
|
|
|
|
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)
|