diff options
Diffstat (limited to 'gst/videotestsrc/gstvideotestsrc.c')
| -rw-r--r-- | gst/videotestsrc/gstvideotestsrc.c | 856 |
1 files changed, 0 insertions, 856 deletions
diff --git a/gst/videotestsrc/gstvideotestsrc.c b/gst/videotestsrc/gstvideotestsrc.c deleted file mode 100644 index 03c55f27..00000000 --- a/gst/videotestsrc/gstvideotestsrc.c +++ /dev/null @@ -1,856 +0,0 @@ -/* GStreamer - * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> - * Copyright (C) <2002> David A. Schleef <ds@schleef.org> - * - * 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 variaty - * of formats. The video test data produced can be controlled with the "pattern" - * property. - * - * <refsect2> - * <title>Example launch line</title> - * |[ - * gst-launch -v videotestsrc pattern=snow ! ximagesink - * ]| Shows random noise in an X window. - * </refsect2> - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif -#include "gstvideotestsrc.h" -#include "videotestsrc.h" - -#include <string.h> -#include <stdlib.h> -#include <liboil/liboil.h> - -GST_DEBUG_CATEGORY_STATIC (video_test_src_debug); -#define GST_CAT_DEFAULT video_test_src_debug - -static const GstElementDetails video_test_src_details = -GST_ELEMENT_DETAILS ("Video test source", - "Source/Video", - "Creates a test video stream", - "David A. Schleef <ds@schleef.org>"); - -#define DEFAULT_PATTERN GST_VIDEO_TEST_SRC_SMPTE -#define DEFAULT_TIMESTAMP_OFFSET 0 -#define DEFAULT_IS_LIVE FALSE -#define DEFAULT_PEER_ALLOC TRUE -#define DEFAULT_COLOR_SPEC GST_VIDEO_TEST_SRC_BT601 - -enum -{ - PROP_0, - PROP_PATTERN, - PROP_TIMESTAMP_OFFSET, - PROP_IS_LIVE, - PROP_PEER_ALLOC, - PROP_COLOR_SPEC, - 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_LAST -}; - - -GST_BOILERPLATE (GstVideoTestSrc, gst_video_test_src, GstPushSrc, - 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 GstCaps *gst_video_test_src_getcaps (GstBaseSrc * bsrc); -static gboolean gst_video_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps); -static void gst_video_test_src_src_fixate (GstPad * pad, 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 GstFlowReturn gst_video_test_src_create (GstPushSrc * psrc, - GstBuffer ** buffer); -static gboolean gst_video_test_src_start (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"}, - {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; -} - -#define GST_TYPE_VIDEO_TEST_SRC_COLOR_SPEC (gst_video_test_src_color_spec_get_type ()) -static GType -gst_video_test_src_color_spec_get_type (void) -{ - static GType video_test_src_color_spec_type = 0; - static const GEnumValue color_spec_types[] = { - {GST_VIDEO_TEST_SRC_BT601, "ITU-R Rec. BT.601", "bt601"}, - {GST_VIDEO_TEST_SRC_BT709, "ITU-R Rec. BT.709", "bt709"}, - {0, NULL, NULL} - }; - - if (!video_test_src_color_spec_type) { - video_test_src_color_spec_type = - g_enum_register_static ("GstVideoTestSrcColorSpec", color_spec_types); - } - return video_test_src_color_spec_type; -} - -static void -gst_video_test_src_base_init (gpointer g_class) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); - - gst_element_class_set_details (element_class, &video_test_src_details); - - gst_element_class_add_pad_template (element_class, - gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, - gst_video_test_src_getcaps (NULL))); -} - -static void -gst_video_test_src_class_init (GstVideoTestSrcClass * klass) -{ - GObjectClass *gobject_class; - GstBaseSrcClass *gstbasesrc_class; - GstPushSrcClass *gstpushsrc_class; - - gobject_class = (GObjectClass *) 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_PEER_ALLOC, - g_param_spec_boolean ("peer-alloc", "Peer Alloc", - "Ask the peer to allocate an output buffer", DEFAULT_PEER_ALLOC, - G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); - g_object_class_install_property (gobject_class, PROP_COLOR_SPEC, - g_param_spec_enum ("colorspec", "Color Specification", - "Generate video in the given color specification", - GST_TYPE_VIDEO_TEST_SRC_COLOR_SPEC, - DEFAULT_COLOR_SPEC, 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*t 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)); - - gstbasesrc_class->get_caps = gst_video_test_src_getcaps; - gstbasesrc_class->set_caps = gst_video_test_src_setcaps; - 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; - - gstpushsrc_class->create = gst_video_test_src_create; -} - -static void -gst_video_test_src_init (GstVideoTestSrc * src, GstVideoTestSrcClass * g_class) -{ - GstPad *pad = GST_BASE_SRC_PAD (src); - - gst_pad_set_fixatecaps_function (pad, gst_video_test_src_src_fixate); - - gst_video_test_src_set_pattern (src, DEFAULT_PATTERN); - - src->timestamp_offset = DEFAULT_TIMESTAMP_OFFSET; - - /* 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); - src->peer_alloc = DEFAULT_PEER_ALLOC; -} - -static void -gst_video_test_src_src_fixate (GstPad * pad, GstCaps * caps) -{ - GstStructure *structure; - - 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_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_black; - 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; - 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_PEER_ALLOC: - src->peer_alloc = g_value_get_boolean (value); - break; - case PROP_COLOR_SPEC: - src->color_spec = g_value_get_enum (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; - 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_PEER_ALLOC: - g_value_set_boolean (value, src->peer_alloc); - break; - case PROP_COLOR_SPEC: - g_value_set_enum (value, src->color_spec); - 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; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -/* threadsafe because this gets called as the plugin is loaded */ -static GstCaps * -gst_video_test_src_getcaps (GstBaseSrc * bsrc) -{ - static GstCaps *capslist = NULL; - - if (!capslist) { - GstCaps *caps; - GstStructure *structure; - int i; - - caps = gst_caps_new_empty (); - for (i = 0; i < n_fourccs; i++) { - structure = paint_get_structure (fourcc_list + i); - gst_structure_set (structure, - "width", GST_TYPE_INT_RANGE, 1, G_MAXINT, - "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, - "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL); - gst_caps_append_structure (caps, structure); - } - - capslist = caps; - } - - return gst_caps_copy (capslist); -} - -static gboolean -gst_video_test_src_parse_caps (const GstCaps * caps, - gint * width, gint * height, gint * rate_numerator, gint * rate_denominator, - struct fourcc_list_struct **fourcc) -{ - 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); - - if (!(*fourcc = paintinfo_find_by_structure (structure))) - goto unknown_format; - - 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 */ -unknown_format: - { - GST_DEBUG ("videotestsrc format not found"); - return FALSE; - } -no_framerate: - { - GST_DEBUG ("videotestsrc no framerate given"); - return FALSE; - } -} - -static gboolean -gst_video_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps) -{ - gboolean res; - gint width, height, rate_denominator, rate_numerator; - struct fourcc_list_struct *fourcc; - GstVideoTestSrc *videotestsrc; - - videotestsrc = GST_VIDEO_TEST_SRC (bsrc); - - res = gst_video_test_src_parse_caps (caps, &width, &height, - &rate_numerator, &rate_denominator, &fourcc); - if (res) { - /* looks ok here */ - videotestsrc->fourcc = fourcc; - videotestsrc->width = width; - videotestsrc->height = height; - videotestsrc->rate_numerator = rate_numerator; - videotestsrc->rate_denominator = rate_denominator; - videotestsrc->bpp = videotestsrc->fourcc->bitspp; - - GST_DEBUG_OBJECT (videotestsrc, "size %dx%d, %d/%d fps", - videotestsrc->width, videotestsrc->height, - videotestsrc->rate_numerator, videotestsrc->rate_denominator); - } - return res; -} - -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); - 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_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_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_video_test_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment) -{ - GstClockTime time; - GstVideoTestSrc *src; - - src = GST_VIDEO_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_video_test_src_is_seekable (GstBaseSrc * psrc) -{ - /* we're seekable... */ - return TRUE; -} - -static GstFlowReturn -gst_video_test_src_create (GstPushSrc * psrc, GstBuffer ** buffer) -{ - GstVideoTestSrc *src; - gulong newsize, size; - GstBuffer *outbuf = NULL; - GstFlowReturn res; - GstClockTime next_time; - - src = GST_VIDEO_TEST_SRC (psrc); - - if (G_UNLIKELY (src->fourcc == NULL)) - 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; - - newsize = gst_video_test_src_get_size (src, src->width, src->height); - - g_return_val_if_fail (newsize > 0, GST_FLOW_ERROR); - - GST_LOG_OBJECT (src, - "creating buffer of %lu bytes with %dx%d image for frame %d", newsize, - src->width, src->height, (gint) src->n_frames); - - if (src->peer_alloc) { - res = - gst_pad_alloc_buffer_and_set_caps (GST_BASE_SRC_PAD (psrc), - GST_BUFFER_OFFSET_NONE, newsize, GST_PAD_CAPS (GST_BASE_SRC_PAD (psrc)), - &outbuf); - if (res != GST_FLOW_OK) - goto no_buffer; - - /* the buffer could have renegotiated, we need to discard any buffers of the - * wrong size. */ - size = GST_BUFFER_SIZE (outbuf); - newsize = gst_video_test_src_get_size (src, src->width, src->height); - - if (size != newsize) { - gst_buffer_unref (outbuf); - outbuf = NULL; - } - } - - if (outbuf == NULL) { - outbuf = gst_buffer_new_and_alloc (newsize); - gst_buffer_set_caps (outbuf, GST_PAD_CAPS (GST_BASE_SRC_PAD (psrc))); - } - - memset (GST_BUFFER_DATA (outbuf), 0, GST_BUFFER_SIZE (outbuf)); - - if (src->pattern_type == GST_VIDEO_TEST_SRC_BLINK) { - if (src->n_frames & 0x1) { - gst_video_test_src_white (src, (void *) GST_BUFFER_DATA (outbuf), - src->width, src->height); - } else { - gst_video_test_src_black (src, (void *) GST_BUFFER_DATA (outbuf), - src->width, src->height); - } - } else { - src->make_image (src, (void *) GST_BUFFER_DATA (outbuf), - src->width, src->height); - } - - GST_BUFFER_TIMESTAMP (outbuf) = src->timestamp_offset + src->running_time; - GST_BUFFER_OFFSET (outbuf) = src->n_frames; - src->n_frames++; - GST_BUFFER_OFFSET_END (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 (outbuf) = next_time - src->running_time; - } else { - next_time = src->timestamp_offset; - /* NONE means forever */ - GST_BUFFER_DURATION (outbuf) = GST_CLOCK_TIME_NONE; - } - - src->running_time = next_time; - - *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; - } -no_buffer: - { - GST_DEBUG_OBJECT (src, "could not allocate buffer, reason %s", - gst_flow_get_name (res)); - return res; - } -} - -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 -plugin_init (GstPlugin * plugin) -{ - oil_init (); - - 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) |