/* GStreamer * Copyright (C) <1999> Erik Walthinsen * Copyright (C) <2002> David A. Schleef * * 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-videotestsrc * * The videotestsrc element is used to produce test video data in a wide variety * of formats. The video test data produced can be controlled with the "pattern" * property. * * * Example launch line * |[ * gst-launch -v videotestsrc pattern=snow ! ximagesink * ]| Shows random noise in an X window. * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "gstvideotestsrc.h" #include "gstvideotestsrcorc.h" #include "videotestsrc.h" #include #include GST_DEBUG_CATEGORY_STATIC (video_test_src_debug); #define GST_CAT_DEFAULT video_test_src_debug #define DEFAULT_PATTERN GST_VIDEO_TEST_SRC_SMPTE #define DEFAULT_TIMESTAMP_OFFSET 0 #define DEFAULT_IS_LIVE FALSE #define DEFAULT_COLOR_SPEC GST_VIDEO_TEST_SRC_BT601 #define DEFAULT_FOREGROUND_COLOR 0xffffffff #define DEFAULT_BACKGROUND_COLOR 0xff000000 #define DEFAULT_HORIZONTAL_SPEED 0 enum { PROP_0, PROP_PATTERN, PROP_TIMESTAMP_OFFSET, PROP_IS_LIVE, PROP_K0, PROP_KX, PROP_KY, PROP_KT, PROP_KXT, PROP_KYT, PROP_KXY, PROP_KX2, PROP_KY2, PROP_KT2, PROP_XOFFSET, PROP_YOFFSET, PROP_FOREGROUND_COLOR, PROP_BACKGROUND_COLOR, PROP_HORIZONTAL_SPEED, PROP_LAST }; #define VTS_VIDEO_CAPS GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL) ";" \ "video/x-bayer, format=(string) { bggr, rggb, grbg, gbrg }, " \ "width = " GST_VIDEO_SIZE_RANGE ", " \ "height = " GST_VIDEO_SIZE_RANGE ", " \ "framerate = " GST_VIDEO_FPS_RANGE static GstStaticPadTemplate gst_video_test_src_template = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS (VTS_VIDEO_CAPS) ); #define gst_video_test_src_parent_class parent_class G_DEFINE_TYPE (GstVideoTestSrc, gst_video_test_src, GST_TYPE_PUSH_SRC); static void gst_video_test_src_set_pattern (GstVideoTestSrc * videotestsrc, int pattern_type); static void gst_video_test_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_video_test_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static gboolean gst_video_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps); static GstCaps *gst_video_test_src_src_fixate (GstBaseSrc * bsrc, GstCaps * caps); static gboolean gst_video_test_src_is_seekable (GstBaseSrc * psrc); static gboolean gst_video_test_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment); static gboolean gst_video_test_src_query (GstBaseSrc * bsrc, GstQuery * query); static void gst_video_test_src_get_times (GstBaseSrc * basesrc, GstBuffer * buffer, GstClockTime * start, GstClockTime * end); static gboolean gst_video_test_src_decide_allocation (GstBaseSrc * bsrc, GstQuery * query); static GstFlowReturn gst_video_test_src_fill (GstPushSrc * psrc, GstBuffer * buffer); static gboolean gst_video_test_src_start (GstBaseSrc * basesrc); static gboolean gst_video_test_src_stop (GstBaseSrc * basesrc); #define GST_TYPE_VIDEO_TEST_SRC_PATTERN (gst_video_test_src_pattern_get_type ()) static GType gst_video_test_src_pattern_get_type (void) { static GType video_test_src_pattern_type = 0; static const GEnumValue pattern_types[] = { {GST_VIDEO_TEST_SRC_SMPTE, "SMPTE 100% color bars", "smpte"}, {GST_VIDEO_TEST_SRC_SNOW, "Random (television snow)", "snow"}, {GST_VIDEO_TEST_SRC_BLACK, "100% Black", "black"}, {GST_VIDEO_TEST_SRC_WHITE, "100% White", "white"}, {GST_VIDEO_TEST_SRC_RED, "Red", "red"}, {GST_VIDEO_TEST_SRC_GREEN, "Green", "green"}, {GST_VIDEO_TEST_SRC_BLUE, "Blue", "blue"}, {GST_VIDEO_TEST_SRC_CHECKERS1, "Checkers 1px", "checkers-1"}, {GST_VIDEO_TEST_SRC_CHECKERS2, "Checkers 2px", "checkers-2"}, {GST_VIDEO_TEST_SRC_CHECKERS4, "Checkers 4px", "checkers-4"}, {GST_VIDEO_TEST_SRC_CHECKERS8, "Checkers 8px", "checkers-8"}, {GST_VIDEO_TEST_SRC_CIRCULAR, "Circular", "circular"}, {GST_VIDEO_TEST_SRC_BLINK, "Blink", "blink"}, {GST_VIDEO_TEST_SRC_SMPTE75, "SMPTE 75% color bars", "smpte75"}, {GST_VIDEO_TEST_SRC_ZONE_PLATE, "Zone plate", "zone-plate"}, {GST_VIDEO_TEST_SRC_GAMUT, "Gamut checkers", "gamut"}, {GST_VIDEO_TEST_SRC_CHROMA_ZONE_PLATE, "Chroma zone plate", "chroma-zone-plate"}, {GST_VIDEO_TEST_SRC_SOLID, "Solid color", "solid-color"}, {GST_VIDEO_TEST_SRC_BALL, "Moving ball", "ball"}, {GST_VIDEO_TEST_SRC_SMPTE100, "SMPTE 100% color bars", "smpte100"}, {GST_VIDEO_TEST_SRC_BAR, "Bar", "bar"}, {0, NULL, NULL} }; if (!video_test_src_pattern_type) { video_test_src_pattern_type = g_enum_register_static ("GstVideoTestSrcPattern", pattern_types); } return video_test_src_pattern_type; } static void gst_video_test_src_class_init (GstVideoTestSrcClass * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; GstBaseSrcClass *gstbasesrc_class; GstPushSrcClass *gstpushsrc_class; gobject_class = (GObjectClass *) klass; gstelement_class = (GstElementClass *) klass; gstbasesrc_class = (GstBaseSrcClass *) klass; gstpushsrc_class = (GstPushSrcClass *) klass; gobject_class->set_property = gst_video_test_src_set_property; gobject_class->get_property = gst_video_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_VIDEO_TEST_SRC_PATTERN, DEFAULT_PATTERN, 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", DEFAULT_IS_LIVE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_K0, g_param_spec_int ("k0", "Zoneplate zero order phase", "Zoneplate zero order phase, for generating plain fields or phase offsets", G_MININT32, G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_KX, g_param_spec_int ("kx", "Zoneplate 1st order x phase", "Zoneplate 1st order x phase, for generating constant horizontal frequencies", G_MININT32, G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_KY, g_param_spec_int ("ky", "Zoneplate 1st order y phase", "Zoneplate 1st order y phase, for generating contant vertical frequencies", G_MININT32, G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_KT, g_param_spec_int ("kt", "Zoneplate 1st order t phase", "Zoneplate 1st order t phase, for generating phase rotation as a function of time", G_MININT32, G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_KXT, g_param_spec_int ("kxt", "Zoneplate x*t product phase", "Zoneplate x*t product phase, normalised to kxy/256 cycles per vertical pixel at width/2 from origin", G_MININT32, G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_KYT, g_param_spec_int ("kyt", "Zoneplate y*t product phase", "Zoneplate y*t product phase", G_MININT32, G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_KXY, g_param_spec_int ("kxy", "Zoneplate x*y product phase", "Zoneplate x*y product phase", G_MININT32, G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_KX2, g_param_spec_int ("kx2", "Zoneplate 2nd order x phase", "Zoneplate 2nd order x phase, normalised to kx2/256 cycles per horizontal pixel at width/2 from origin", G_MININT32, G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_KY2, g_param_spec_int ("ky2", "Zoneplate 2nd order y phase", "Zoneplate 2nd order y phase, normailsed to ky2/256 cycles per vertical pixel at height/2 from origin", G_MININT32, G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_KT2, g_param_spec_int ("kt2", "Zoneplate 2nd order t phase", "Zoneplate 2nd order t phase, t*t/256 cycles per picture", G_MININT32, G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_XOFFSET, g_param_spec_int ("xoffset", "Zoneplate 2nd order products x offset", "Zoneplate 2nd order products x offset", G_MININT32, G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_YOFFSET, g_param_spec_int ("yoffset", "Zoneplate 2nd order products y offset", "Zoneplate 2nd order products y offset", G_MININT32, G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstVideoTestSrc:foreground-color * * Color to use for solid-color pattern and foreground color of other * patterns. Default is white (0xffffffff). * * Since: 0.10.31 **/ g_object_class_install_property (gobject_class, PROP_FOREGROUND_COLOR, g_param_spec_uint ("foreground-color", "Foreground Color", "Foreground color to use (big-endian ARGB)", 0, G_MAXUINT32, DEFAULT_FOREGROUND_COLOR, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstVideoTestSrc:background-color * * Color to use for background color of some patterns. Default is * black (0xff000000). * * Since: 0.10.31 **/ g_object_class_install_property (gobject_class, PROP_BACKGROUND_COLOR, g_param_spec_uint ("background-color", "Background Color", "Background color to use (big-endian ARGB)", 0, G_MAXUINT32, DEFAULT_BACKGROUND_COLOR, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_HORIZONTAL_SPEED, g_param_spec_int ("horizontal-speed", "Horizontal Speed", "Scroll image number of pixels per frame (positive is scroll to the left)", G_MININT32, G_MAXINT32, DEFAULT_HORIZONTAL_SPEED, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); gst_element_class_set_static_metadata (gstelement_class, "Video test source", "Source/Video", "Creates a test video stream", "David A. Schleef "); gst_element_class_add_pad_template (gstelement_class, gst_static_pad_template_get (&gst_video_test_src_template)); gstbasesrc_class->set_caps = gst_video_test_src_setcaps; gstbasesrc_class->fixate = gst_video_test_src_src_fixate; gstbasesrc_class->is_seekable = gst_video_test_src_is_seekable; gstbasesrc_class->do_seek = gst_video_test_src_do_seek; gstbasesrc_class->query = gst_video_test_src_query; gstbasesrc_class->get_times = gst_video_test_src_get_times; gstbasesrc_class->start = gst_video_test_src_start; gstbasesrc_class->stop = gst_video_test_src_stop; gstbasesrc_class->decide_allocation = gst_video_test_src_decide_allocation; gstpushsrc_class->fill = gst_video_test_src_fill; } static void gst_video_test_src_init (GstVideoTestSrc * src) { gst_video_test_src_set_pattern (src, DEFAULT_PATTERN); src->timestamp_offset = DEFAULT_TIMESTAMP_OFFSET; src->foreground_color = DEFAULT_FOREGROUND_COLOR; src->background_color = DEFAULT_BACKGROUND_COLOR; src->horizontal_speed = DEFAULT_HORIZONTAL_SPEED; /* 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), DEFAULT_IS_LIVE); } static GstCaps * gst_video_test_src_src_fixate (GstBaseSrc * bsrc, GstCaps * caps) { GstStructure *structure; caps = gst_caps_make_writable (caps); 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); if (gst_structure_has_field (structure, "pixel-aspect-ratio")) gst_structure_fixate_field_nearest_fraction (structure, "pixel-aspect-ratio", 1, 1); if (gst_structure_has_field (structure, "colorimetry")) gst_structure_fixate_field_string (structure, "colorimetry", "bt601"); if (gst_structure_has_field (structure, "chroma-site")) gst_structure_fixate_field_string (structure, "chroma-site", "mpeg2"); if (gst_structure_has_field (structure, "interlace-mode")) gst_structure_fixate_field_string (structure, "interlace-mode", "progressive"); caps = GST_BASE_SRC_CLASS (parent_class)->fixate (bsrc, caps); return caps; } static void gst_video_test_src_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_VIDEO_TEST_SRC_SMPTE: videotestsrc->make_image = gst_video_test_src_smpte; break; case GST_VIDEO_TEST_SRC_SNOW: videotestsrc->make_image = gst_video_test_src_snow; break; case GST_VIDEO_TEST_SRC_BLACK: videotestsrc->make_image = gst_video_test_src_black; break; case GST_VIDEO_TEST_SRC_WHITE: videotestsrc->make_image = gst_video_test_src_white; break; case GST_VIDEO_TEST_SRC_RED: videotestsrc->make_image = gst_video_test_src_red; break; case GST_VIDEO_TEST_SRC_GREEN: videotestsrc->make_image = gst_video_test_src_green; break; case GST_VIDEO_TEST_SRC_BLUE: videotestsrc->make_image = gst_video_test_src_blue; break; case GST_VIDEO_TEST_SRC_CHECKERS1: videotestsrc->make_image = gst_video_test_src_checkers1; break; case GST_VIDEO_TEST_SRC_CHECKERS2: videotestsrc->make_image = gst_video_test_src_checkers2; break; case GST_VIDEO_TEST_SRC_CHECKERS4: videotestsrc->make_image = gst_video_test_src_checkers4; break; case GST_VIDEO_TEST_SRC_CHECKERS8: videotestsrc->make_image = gst_video_test_src_checkers8; break; case GST_VIDEO_TEST_SRC_CIRCULAR: videotestsrc->make_image = gst_video_test_src_circular; break; case GST_VIDEO_TEST_SRC_BLINK: videotestsrc->make_image = gst_video_test_src_blink; break; case GST_VIDEO_TEST_SRC_SMPTE75: videotestsrc->make_image = gst_video_test_src_smpte75; break; case GST_VIDEO_TEST_SRC_ZONE_PLATE: videotestsrc->make_image = gst_video_test_src_zoneplate; break; case GST_VIDEO_TEST_SRC_GAMUT: videotestsrc->make_image = gst_video_test_src_gamut; break; case GST_VIDEO_TEST_SRC_CHROMA_ZONE_PLATE: videotestsrc->make_image = gst_video_test_src_chromazoneplate; break; case GST_VIDEO_TEST_SRC_SOLID: videotestsrc->make_image = gst_video_test_src_solid; break; case GST_VIDEO_TEST_SRC_BALL: videotestsrc->make_image = gst_video_test_src_ball; break; case GST_VIDEO_TEST_SRC_SMPTE100: videotestsrc->make_image = gst_video_test_src_smpte100; break; case GST_VIDEO_TEST_SRC_BAR: videotestsrc->make_image = gst_video_test_src_bar; break; default: g_assert_not_reached (); } } static void gst_video_test_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstVideoTestSrc *src = GST_VIDEO_TEST_SRC (object); switch (prop_id) { case PROP_PATTERN: gst_video_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; case PROP_K0: src->k0 = g_value_get_int (value); break; case PROP_KX: src->kx = g_value_get_int (value); break; case PROP_KY: src->ky = g_value_get_int (value); break; case PROP_KT: src->kt = g_value_get_int (value); break; case PROP_KXT: src->kxt = g_value_get_int (value); break; case PROP_KYT: src->kyt = g_value_get_int (value); break; case PROP_KXY: src->kxy = g_value_get_int (value); break; case PROP_KX2: src->kx2 = g_value_get_int (value); break; case PROP_KY2: src->ky2 = g_value_get_int (value); break; case PROP_KT2: src->kt2 = g_value_get_int (value); break; case PROP_XOFFSET: src->xoffset = g_value_get_int (value); break; case PROP_YOFFSET: src->yoffset = g_value_get_int (value); break; case PROP_FOREGROUND_COLOR: src->foreground_color = g_value_get_uint (value); break; case PROP_BACKGROUND_COLOR: src->background_color = g_value_get_uint (value); break; case PROP_HORIZONTAL_SPEED: src->horizontal_speed = g_value_get_int (value); default: break; } } static void gst_video_test_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstVideoTestSrc *src = GST_VIDEO_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; case PROP_K0: g_value_set_int (value, src->k0); break; case PROP_KX: g_value_set_int (value, src->kx); break; case PROP_KY: g_value_set_int (value, src->ky); break; case PROP_KT: g_value_set_int (value, src->kt); break; case PROP_KXT: g_value_set_int (value, src->kxt); break; case PROP_KYT: g_value_set_int (value, src->kyt); break; case PROP_KXY: g_value_set_int (value, src->kxy); break; case PROP_KX2: g_value_set_int (value, src->kx2); break; case PROP_KY2: g_value_set_int (value, src->ky2); break; case PROP_KT2: g_value_set_int (value, src->kt2); break; case PROP_XOFFSET: g_value_set_int (value, src->xoffset); break; case PROP_YOFFSET: g_value_set_int (value, src->yoffset); break; case PROP_FOREGROUND_COLOR: g_value_set_uint (value, src->foreground_color); break; case PROP_BACKGROUND_COLOR: g_value_set_uint (value, src->background_color); break; case PROP_HORIZONTAL_SPEED: g_value_set_int (value, src->horizontal_speed); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static gboolean gst_video_test_src_parse_caps (const GstCaps * caps, gint * width, gint * height, gint * fps_n, gint * fps_d, GstVideoColorimetry * colorimetry, gint * x_inv, gint * y_inv) { const GstStructure *structure; GstPadLinkReturn ret; const GValue *framerate; const gchar *str; GST_DEBUG ("parsing caps"); 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) { *fps_n = gst_value_get_fraction_numerator (framerate); *fps_d = gst_value_get_fraction_denominator (framerate); } else goto no_framerate; if ((str = gst_structure_get_string (structure, "colorimetry"))) gst_video_colorimetry_from_string (colorimetry, str); if ((str = gst_structure_get_string (structure, "format"))) { if (g_str_equal (str, "bggr")) { *x_inv = *y_inv = 0; } else if (g_str_equal (str, "rggb")) { *x_inv = *y_inv = 1; } else if (g_str_equal (str, "grbg")) { *x_inv = 0; *y_inv = 1; } else if (g_str_equal (str, "grbg")) { *x_inv = 1; *y_inv = 0; } else goto invalid_format; } return ret; /* ERRORS */ no_framerate: { GST_DEBUG ("videotestsrc no framerate given"); return FALSE; } invalid_format: { GST_DEBUG ("videotestsrc invalid bayer format given"); return FALSE; } } static gboolean gst_video_test_src_decide_allocation (GstBaseSrc * bsrc, GstQuery * query) { GstVideoTestSrc *videotestsrc; GstBufferPool *pool; gboolean update; guint size, min, max; GstStructure *config; videotestsrc = GST_VIDEO_TEST_SRC (bsrc); if (gst_query_get_n_allocation_pools (query) > 0) { gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max); /* adjust size */ size = MAX (size, videotestsrc->info.size); update = TRUE; } else { pool = NULL; size = videotestsrc->info.size; min = max = 0; update = FALSE; } /* no downstream pool, make our own */ if (pool == NULL) { if (videotestsrc->bayer) pool = gst_buffer_pool_new (); else pool = gst_video_buffer_pool_new (); } config = gst_buffer_pool_get_config (pool); if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) { gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META); } gst_buffer_pool_set_config (pool, config); if (update) gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max); else gst_query_add_allocation_pool (query, pool, size, min, max); if (pool) gst_object_unref (pool); return GST_BASE_SRC_CLASS (parent_class)->decide_allocation (bsrc, query); } static gboolean gst_video_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps) { const GstStructure *structure; GstVideoTestSrc *videotestsrc; GstVideoInfo info; videotestsrc = GST_VIDEO_TEST_SRC (bsrc); structure = gst_caps_get_structure (caps, 0); if (gst_structure_has_name (structure, "video/x-raw")) { /* we can use the parsing code */ if (!gst_video_info_from_caps (&info, caps)) goto parse_failed; } else if (gst_structure_has_name (structure, "video/x-bayer")) { gint x_inv = 0, y_inv = 0; gst_video_info_init (&info); info.finfo = gst_video_format_get_info (GST_VIDEO_FORMAT_GRAY8); if (!gst_video_test_src_parse_caps (caps, &info.width, &info.height, &info.fps_n, &info.fps_d, &info.colorimetry, &x_inv, &y_inv)) goto parse_failed; info.size = GST_ROUND_UP_4 (info.width) * info.height; info.stride[0] = GST_ROUND_UP_4 (info.width); videotestsrc->bayer = TRUE; videotestsrc->x_invert = x_inv; videotestsrc->y_invert = y_inv; } /* looks ok here */ videotestsrc->info = info; GST_DEBUG_OBJECT (videotestsrc, "size %dx%d, %d/%d fps", info.width, info.height, info.fps_n, info.fps_d); g_free (videotestsrc->tmpline); g_free (videotestsrc->tmpline2); g_free (videotestsrc->tmpline_u8); g_free (videotestsrc->tmpline_u16); videotestsrc->tmpline_u8 = g_malloc (info.width + 8); videotestsrc->tmpline = g_malloc ((info.width + 8) * 4); videotestsrc->tmpline2 = g_malloc ((info.width + 8) * 4); videotestsrc->tmpline_u16 = g_malloc ((info.width + 16) * 8); return TRUE; /* ERRORS */ parse_failed: { GST_DEBUG_OBJECT (bsrc, "failed to parse caps"); return FALSE; } } static gboolean gst_video_test_src_query (GstBaseSrc * bsrc, GstQuery * query) { gboolean res; GstVideoTestSrc *src; src = GST_VIDEO_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); res = gst_video_info_convert (&src->info, src_fmt, src_val, dest_fmt, &dest_val); gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val); break; } default: res = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query); break; } return res; } static void gst_video_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_DTS (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_video_test_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment) { GstClockTime position; GstVideoTestSrc *src; src = GST_VIDEO_TEST_SRC (bsrc); segment->time = segment->start; position = segment->position; /* now move to the position indicated */ if (src->info.fps_n) { src->n_frames = gst_util_uint64_scale (position, src->info.fps_n, src->info.fps_d * GST_SECOND); } else { src->n_frames = 0; } if (src->info.fps_n) { src->running_time = gst_util_uint64_scale (src->n_frames, src->info.fps_d * GST_SECOND, src->info.fps_n); } else { /* FIXME : Not sure what to set here */ src->running_time = 0; } g_assert (src->running_time <= position); return TRUE; } static gboolean gst_video_test_src_is_seekable (GstBaseSrc * psrc) { /* we're seekable... */ return TRUE; } static GstFlowReturn gst_video_test_src_fill (GstPushSrc * psrc, GstBuffer * buffer) { GstVideoTestSrc *src; GstClockTime next_time; GstVideoFrame frame; src = GST_VIDEO_TEST_SRC (psrc); if (G_UNLIKELY (GST_VIDEO_INFO_FORMAT (&src->info) == GST_VIDEO_FORMAT_UNKNOWN)) goto not_negotiated; /* 0 framerate and we are at the second frame, eos */ if (G_UNLIKELY (src->info.fps_n == 0 && src->n_frames == 1)) goto eos; GST_LOG_OBJECT (src, "creating buffer from pool for frame %d", (gint) src->n_frames); if (!gst_video_frame_map (&frame, &src->info, buffer, GST_MAP_WRITE)) goto invalid_frame; src->make_image (src, &frame); gst_video_frame_unmap (&frame); GST_BUFFER_DTS (buffer) = src->timestamp_offset + src->running_time; GST_BUFFER_PTS (buffer) = GST_BUFFER_DTS (buffer); GST_BUFFER_OFFSET (buffer) = src->n_frames; src->n_frames++; GST_BUFFER_OFFSET_END (buffer) = src->n_frames; if (src->info.fps_n) { next_time = gst_util_uint64_scale_int (src->n_frames * GST_SECOND, src->info.fps_d, src->info.fps_n); GST_BUFFER_DURATION (buffer) = next_time - src->running_time; } else { next_time = src->timestamp_offset; /* NONE means forever */ GST_BUFFER_DURATION (buffer) = GST_CLOCK_TIME_NONE; } src->running_time = next_time; 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_EOS; } invalid_frame: { GST_DEBUG_OBJECT (src, "invalid frame"); return GST_FLOW_OK; } } static gboolean gst_video_test_src_start (GstBaseSrc * basesrc) { GstVideoTestSrc *src = GST_VIDEO_TEST_SRC (basesrc); src->running_time = 0; src->n_frames = 0; return TRUE; } static gboolean gst_video_test_src_stop (GstBaseSrc * basesrc) { GstVideoTestSrc *src = GST_VIDEO_TEST_SRC (basesrc); g_free (src->tmpline); src->tmpline = NULL; g_free (src->tmpline2); src->tmpline2 = NULL; g_free (src->tmpline_u8); src->tmpline_u8 = NULL; g_free (src->tmpline_u16); src->tmpline_u16 = NULL; return TRUE; } static gboolean plugin_init (GstPlugin * plugin) { GST_DEBUG_CATEGORY_INIT (video_test_src_debug, "videotestsrc", 0, "Video Test Source"); return gst_element_register (plugin, "videotestsrc", GST_RANK_NONE, GST_TYPE_VIDEO_TEST_SRC); } GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, videotestsrc, "Creates a test video stream", plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)