/* * GStreamer * Copyright (C) <1999> Erik Walthinsen * Copyright (C) 2002,2007 David A. Schleef * Copyright (C) 2008 Julien Isorce * * 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. */ /** * SECTION:element-gltestsrc * * * * The gltestsrc element is used to produce test video texture. * The video test produced can be controlled with the "pattern" * property. * * Example launch line * * * gst-launch -v gltestsrc pattern=smpte ! glimagesink * * Shows original SMPTE color bars in a window. * * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "gstgltestsrc.h" #include "gltestsrc.h" #include #define USE_PEER_BUFFERALLOC GST_DEBUG_CATEGORY_STATIC (gl_test_src_debug); #define GST_CAT_DEFAULT gl_test_src_debug enum { PROP_0, PROP_PATTERN, PROP_TIMESTAMP_OFFSET, PROP_IS_LIVE /* FILL ME */ }; GST_BOILERPLATE (GstGLTestSrc, gst_gl_test_src, GstPushSrc, GST_TYPE_PUSH_SRC); static void gst_gl_test_src_set_pattern (GstGLTestSrc * gltestsrc, int pattern_type); static void gst_gl_test_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_gl_test_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static gboolean gst_gl_test_src_src_query (GstPad * pad, GstQuery * query); static gboolean gst_gl_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps); static void gst_gl_test_src_src_fixate (GstPad * pad, GstCaps * caps); static gboolean gst_gl_test_src_is_seekable (GstBaseSrc * psrc); static gboolean gst_gl_test_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment); static gboolean gst_gl_test_src_query (GstBaseSrc * bsrc, GstQuery * query); static void gst_gl_test_src_get_times (GstBaseSrc * basesrc, GstBuffer * buffer, GstClockTime * start, GstClockTime * end); static GstFlowReturn gst_gl_test_src_create (GstPushSrc * psrc, GstBuffer ** buffer); static gboolean gst_gl_test_src_start (GstBaseSrc * basesrc); static gboolean gst_gl_test_src_stop (GstBaseSrc * basesrc); static void gst_gl_test_src_callback (gint width, gint height, guint texture, gpointer stuff); #define GST_TYPE_GL_TEST_SRC_PATTERN (gst_gl_test_src_pattern_get_type ()) static GType gst_gl_test_src_pattern_get_type (void) { static GType gl_test_src_pattern_type = 0; static const GEnumValue pattern_types[] = { {GST_GL_TEST_SRC_SMPTE, "SMPTE 100% color bars", "smpte"}, {GST_GL_TEST_SRC_SNOW, "Random (television snow)", "snow"}, {GST_GL_TEST_SRC_BLACK, "100% Black", "black"}, {GST_GL_TEST_SRC_WHITE, "100% White", "white"}, {GST_GL_TEST_SRC_RED, "Red", "red"}, {GST_GL_TEST_SRC_GREEN, "Green", "green"}, {GST_GL_TEST_SRC_BLUE, "Blue", "blue"}, {GST_GL_TEST_SRC_CHECKERS1, "Checkers 1px", "checkers-1"}, {GST_GL_TEST_SRC_CHECKERS2, "Checkers 2px", "checkers-2"}, {GST_GL_TEST_SRC_CHECKERS4, "Checkers 4px", "checkers-4"}, {GST_GL_TEST_SRC_CHECKERS8, "Checkers 8px", "checkers-8"}, {GST_GL_TEST_SRC_CIRCULAR, "Circular", "circular"}, {GST_GL_TEST_SRC_BLINK, "Blink", "blink"}, {0, NULL, NULL} }; if (!gl_test_src_pattern_type) { gl_test_src_pattern_type = g_enum_register_static ("GstGLTestSrcPattern", pattern_types); } return gl_test_src_pattern_type; } static void gst_gl_test_src_base_init (gpointer g_class) { GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); gst_element_class_set_details_simple (element_class, "Video test source", "Source/Video", "Creates a test video stream", "David A. Schleef "); gst_element_class_add_pad_template (element_class, gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, gst_caps_from_string (GST_GL_VIDEO_CAPS))); } static void gst_gl_test_src_class_init (GstGLTestSrcClass * klass) { GObjectClass *gobject_class; GstBaseSrcClass *gstbasesrc_class; GstPushSrcClass *gstpushsrc_class; GST_DEBUG_CATEGORY_INIT (gl_test_src_debug, "gltestsrc", 0, "Video Test Source"); gobject_class = (GObjectClass *) klass; gstbasesrc_class = (GstBaseSrcClass *) klass; gstpushsrc_class = (GstPushSrcClass *) klass; gobject_class->set_property = gst_gl_test_src_set_property; gobject_class->get_property = gst_gl_test_src_get_property; g_object_class_install_property (gobject_class, PROP_PATTERN, g_param_spec_enum ("pattern", "Pattern", "Type of test pattern to generate", GST_TYPE_GL_TEST_SRC_PATTERN, GST_GL_TEST_SRC_SMPTE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_TIMESTAMP_OFFSET, g_param_spec_int64 ("timestamp-offset", "Timestamp offset", "An offset added to timestamps set on buffers (in ns)", G_MININT64, G_MAXINT64, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_IS_LIVE, g_param_spec_boolean ("is-live", "Is Live", "Whether to act as a live source", FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); gstbasesrc_class->set_caps = gst_gl_test_src_setcaps; gstbasesrc_class->is_seekable = gst_gl_test_src_is_seekable; gstbasesrc_class->do_seek = gst_gl_test_src_do_seek; gstbasesrc_class->query = gst_gl_test_src_query; gstbasesrc_class->get_times = gst_gl_test_src_get_times; gstbasesrc_class->start = gst_gl_test_src_start; gstbasesrc_class->stop = gst_gl_test_src_stop; gstpushsrc_class->create = gst_gl_test_src_create; } static void gst_gl_test_src_init (GstGLTestSrc * src, GstGLTestSrcClass * g_class) { GstPad *pad = GST_BASE_SRC_PAD (src); gst_pad_set_fixatecaps_function (pad, gst_gl_test_src_src_fixate); gst_gl_test_src_set_pattern (src, GST_GL_TEST_SRC_SMPTE); src->timestamp_offset = 0; /* we operate in time */ gst_base_src_set_format (GST_BASE_SRC (src), GST_FORMAT_TIME); gst_base_src_set_live (GST_BASE_SRC (src), FALSE); gst_pad_set_query_function (pad, GST_DEBUG_FUNCPTR (gst_gl_test_src_src_query)); } static void gst_gl_test_src_src_fixate (GstPad * pad, GstCaps * caps) { GstStructure *structure; GST_DEBUG ("fixate"); structure = gst_caps_get_structure (caps, 0); gst_structure_fixate_field_nearest_int (structure, "width", 320); gst_structure_fixate_field_nearest_int (structure, "height", 240); gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1); } static void gst_gl_test_src_set_pattern (GstGLTestSrc * gltestsrc, gint pattern_type) { gltestsrc->pattern_type = pattern_type; GST_DEBUG_OBJECT (gltestsrc, "setting pattern to %d", pattern_type); switch (pattern_type) { case GST_GL_TEST_SRC_SMPTE: gltestsrc->make_image = gst_gl_test_src_smpte; break; case GST_GL_TEST_SRC_SNOW: gltestsrc->make_image = gst_gl_test_src_snow; break; case GST_GL_TEST_SRC_BLACK: gltestsrc->make_image = gst_gl_test_src_black; break; case GST_GL_TEST_SRC_WHITE: gltestsrc->make_image = gst_gl_test_src_white; break; case GST_GL_TEST_SRC_RED: gltestsrc->make_image = gst_gl_test_src_red; break; case GST_GL_TEST_SRC_GREEN: gltestsrc->make_image = gst_gl_test_src_green; break; case GST_GL_TEST_SRC_BLUE: gltestsrc->make_image = gst_gl_test_src_blue; break; case GST_GL_TEST_SRC_CHECKERS1: gltestsrc->make_image = gst_gl_test_src_checkers1; break; case GST_GL_TEST_SRC_CHECKERS2: gltestsrc->make_image = gst_gl_test_src_checkers2; break; case GST_GL_TEST_SRC_CHECKERS4: gltestsrc->make_image = gst_gl_test_src_checkers4; break; case GST_GL_TEST_SRC_CHECKERS8: gltestsrc->make_image = gst_gl_test_src_checkers8; break; case GST_GL_TEST_SRC_CIRCULAR: gltestsrc->make_image = gst_gl_test_src_circular; break; case GST_GL_TEST_SRC_BLINK: gltestsrc->make_image = gst_gl_test_src_black; break; default: g_assert_not_reached (); } } static void gst_gl_test_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstGLTestSrc *src = GST_GL_TEST_SRC (object); switch (prop_id) { case PROP_PATTERN: gst_gl_test_src_set_pattern (src, g_value_get_enum (value)); break; case PROP_TIMESTAMP_OFFSET: src->timestamp_offset = g_value_get_int64 (value); break; case PROP_IS_LIVE: gst_base_src_set_live (GST_BASE_SRC (src), g_value_get_boolean (value)); break; default: break; } } static void gst_gl_test_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstGLTestSrc *src = GST_GL_TEST_SRC (object); switch (prop_id) { case PROP_PATTERN: g_value_set_enum (value, src->pattern_type); break; case PROP_TIMESTAMP_OFFSET: g_value_set_int64 (value, src->timestamp_offset); break; case PROP_IS_LIVE: g_value_set_boolean (value, gst_base_src_is_live (GST_BASE_SRC (src))); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static gboolean gst_gl_test_src_src_query (GstPad * pad, GstQuery * query) { gboolean res = FALSE; GstElement *parent = GST_ELEMENT (gst_pad_get_parent (pad)); switch (GST_QUERY_TYPE (query)) { case GST_QUERY_CUSTOM: { GstStructure *structure = gst_query_get_structure (query); res = g_strcmp0 (gst_element_get_name (parent), gst_structure_get_name (structure)) == 0; break; } default: res = gst_pad_query_default (pad, query); break; } return res; } static gboolean gst_gl_test_src_parse_caps (const GstCaps * caps, gint * width, gint * height, gint * rate_numerator, gint * rate_denominator) { const GstStructure *structure; GstPadLinkReturn ret; const GValue *framerate; GST_DEBUG ("parsing caps"); if (gst_caps_get_size (caps) < 1) return FALSE; structure = gst_caps_get_structure (caps, 0); ret = gst_structure_get_int (structure, "width", width); ret &= gst_structure_get_int (structure, "height", height); framerate = gst_structure_get_value (structure, "framerate"); if (framerate) { *rate_numerator = gst_value_get_fraction_numerator (framerate); *rate_denominator = gst_value_get_fraction_denominator (framerate); } else goto no_framerate; return ret; /* ERRORS */ no_framerate: { GST_DEBUG ("gltestsrc no framerate given"); return FALSE; } } static gboolean gst_gl_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps) { gboolean res; gint width, height, rate_denominator, rate_numerator; GstGLTestSrc *gltestsrc; gltestsrc = GST_GL_TEST_SRC (bsrc); GST_DEBUG ("setcaps"); res = gst_gl_test_src_parse_caps (caps, &width, &height, &rate_numerator, &rate_denominator); if (res) { /* looks ok here */ gltestsrc->width = width; gltestsrc->height = height; gltestsrc->rate_numerator = rate_numerator; gltestsrc->rate_denominator = rate_denominator; gltestsrc->negotiated = TRUE; GST_DEBUG_OBJECT (gltestsrc, "size %dx%d, %d/%d fps", gltestsrc->width, gltestsrc->height, gltestsrc->rate_numerator, gltestsrc->rate_denominator); gst_gl_display_gen_fbo (gltestsrc->display, gltestsrc->width, gltestsrc->height, &gltestsrc->fbo, &gltestsrc->depthbuffer); } return res; } static gboolean gst_gl_test_src_query (GstBaseSrc * bsrc, GstQuery * query) { gboolean res; GstGLTestSrc *src; src = GST_GL_TEST_SRC (bsrc); switch (GST_QUERY_TYPE (query)) { case GST_QUERY_CONVERT: { GstFormat src_fmt, dest_fmt; gint64 src_val, dest_val; gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val); if (src_fmt == dest_fmt) { dest_val = src_val; goto done; } switch (src_fmt) { case GST_FORMAT_DEFAULT: switch (dest_fmt) { case GST_FORMAT_TIME: /* frames to time */ if (src->rate_numerator) { dest_val = gst_util_uint64_scale (src_val, src->rate_denominator * GST_SECOND, src->rate_numerator); } else dest_val = 0; break; default: goto error; } break; case GST_FORMAT_TIME: switch (dest_fmt) { case GST_FORMAT_DEFAULT: /* time to frames */ if (src->rate_numerator) { dest_val = gst_util_uint64_scale (src_val, src->rate_numerator, src->rate_denominator * GST_SECOND); } else dest_val = 0; break; default: goto error; } break; default: goto error; } done: gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val); res = TRUE; break; } default: res = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query); } return res; /* ERROR */ error: { GST_DEBUG_OBJECT (src, "query failed"); return FALSE; } } static void gst_gl_test_src_get_times (GstBaseSrc * basesrc, GstBuffer * buffer, GstClockTime * start, GstClockTime * end) { /* for live sources, sync on the timestamp of the buffer */ if (gst_base_src_is_live (basesrc)) { GstClockTime timestamp = GST_BUFFER_TIMESTAMP (buffer); if (GST_CLOCK_TIME_IS_VALID (timestamp)) { /* get duration to calculate end time */ GstClockTime duration = GST_BUFFER_DURATION (buffer); if (GST_CLOCK_TIME_IS_VALID (duration)) *end = timestamp + duration; *start = timestamp; } } else { *start = -1; *end = -1; } } static gboolean gst_gl_test_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment) { GstClockTime time; GstGLTestSrc *src; src = GST_GL_TEST_SRC (bsrc); segment->time = segment->start; time = segment->last_stop; /* now move to the time indicated */ if (src->rate_numerator) { src->n_frames = gst_util_uint64_scale (time, src->rate_numerator, src->rate_denominator * GST_SECOND); } else src->n_frames = 0; if (src->rate_numerator) { src->running_time = gst_util_uint64_scale (src->n_frames, src->rate_denominator * GST_SECOND, src->rate_numerator); } else { /* FIXME : Not sure what to set here */ src->running_time = 0; } g_assert (src->running_time <= time); return TRUE; } static gboolean gst_gl_test_src_is_seekable (GstBaseSrc * psrc) { /* we're seekable... */ return TRUE; } static GstFlowReturn gst_gl_test_src_create (GstPushSrc * psrc, GstBuffer ** buffer) { GstGLTestSrc *src; GstGLBuffer *outbuf; //GstFlowReturn res; GstClockTime next_time; src = GST_GL_TEST_SRC (psrc); if (G_UNLIKELY (!src->negotiated)) goto not_negotiated; /* 0 framerate and we are at the second frame, eos */ if (G_UNLIKELY (src->rate_numerator == 0 && src->n_frames == 1)) goto eos; GST_LOG_OBJECT (src, "creating buffer %dx%d image for frame %d", src->width, src->height, (gint) src->n_frames); outbuf = gst_gl_buffer_new (src->display, src->width, src->height); if (!outbuf->texture) { gst_buffer_unref (GST_BUFFER_CAST (outbuf)); goto eos; } gst_buffer_set_caps (GST_BUFFER (outbuf), GST_PAD_CAPS (GST_BASE_SRC_PAD (psrc))); if (src->pattern_type == GST_GL_TEST_SRC_BLINK) { if (src->n_frames & 0x1) src->make_image = gst_gl_test_src_white; else src->make_image = gst_gl_test_src_black; } src->buffer = outbuf; //blocking call, generate a FBO if (!gst_gl_display_use_fbo (src->display, src->width, src->height, src->fbo, src->depthbuffer, outbuf->texture, gst_gl_test_src_callback, 0, 0, 0, //no input texture 0, src->width, 0, src->height, GST_GL_DISPLAY_PROJECTION_ORTHO2D, (gpointer) src)) { gst_buffer_unref (GST_BUFFER_CAST (outbuf)); goto eos; } GST_BUFFER_TIMESTAMP (GST_BUFFER (outbuf)) = src->timestamp_offset + src->running_time; GST_BUFFER_OFFSET (GST_BUFFER (outbuf)) = src->n_frames; src->n_frames++; GST_BUFFER_OFFSET_END (GST_BUFFER (outbuf)) = src->n_frames; if (src->rate_numerator) { next_time = gst_util_uint64_scale_int (src->n_frames * GST_SECOND, src->rate_denominator, src->rate_numerator); GST_BUFFER_DURATION (GST_BUFFER (outbuf)) = next_time - src->running_time; } else { next_time = src->timestamp_offset; /* NONE means forever */ GST_BUFFER_DURATION (GST_BUFFER (outbuf)) = GST_CLOCK_TIME_NONE; } src->running_time = next_time; *buffer = GST_BUFFER (outbuf); return GST_FLOW_OK; not_negotiated: { GST_ELEMENT_ERROR (src, CORE, NEGOTIATION, (NULL), (_("format wasn't negotiated before get function"))); return GST_FLOW_NOT_NEGOTIATED; } eos: { GST_DEBUG_OBJECT (src, "eos: 0 framerate, frame %d", (gint) src->n_frames); return GST_FLOW_UNEXPECTED; } #if 0 no_buffer: { GST_DEBUG_OBJECT (src, "could not allocate buffer, reason %s", gst_flow_get_name (res)); return res; } #endif } static gboolean gst_gl_test_src_start (GstBaseSrc * basesrc) { GstGLTestSrc *src = GST_GL_TEST_SRC (basesrc); GstElement *parent = GST_ELEMENT (gst_element_get_parent (src)); GstStructure *structure = NULL; GstQuery *query = NULL; gboolean isPerformed = FALSE; if (!parent) { GST_ELEMENT_ERROR (src, CORE, STATE_CHANGE, (NULL), ("A parent bin is required")); return FALSE; } structure = gst_structure_new (gst_element_get_name (src), NULL); query = gst_query_new_application (GST_QUERY_CUSTOM, structure); isPerformed = gst_element_query (parent, query); if (isPerformed) { const GValue *id_value = gst_structure_get_value (structure, "gstgldisplay"); if (G_VALUE_HOLDS_POINTER (id_value)) /* at least one gl element is before in our gl chain */ src->display = g_object_ref (GST_GL_DISPLAY (g_value_get_pointer (id_value))); else { /* this gl filter is a sink in terms of the gl chain */ src->display = gst_gl_display_new (); gst_gl_display_create_context (src->display, 0); } } gst_query_unref (query); gst_object_unref (GST_OBJECT (parent)); src->running_time = 0; src->n_frames = 0; src->negotiated = FALSE; return isPerformed; } static gboolean gst_gl_test_src_stop (GstBaseSrc * basesrc) { GstGLTestSrc *src = GST_GL_TEST_SRC (basesrc); if (src->display) { //blocking call, delete the FBO gst_gl_display_del_fbo (src->display, src->fbo, src->depthbuffer); g_object_unref (src->display); src->display = NULL; } return TRUE; } //opengl scene static void gst_gl_test_src_callback (gint width, gint height, guint texture, gpointer stuff) { GstGLTestSrc *src = GST_GL_TEST_SRC (stuff); src->make_image (src, src->buffer, src->width, src->height); }