1 /* GStreamer
2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) <2002> David A. Schleef <ds@schleef.org>
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21 /**
22 * SECTION:element-videotestsrc
23 * @title: videotestsrc
24 *
25 * The videotestsrc element is used to produce test video data in a wide variety
26 * of formats. The video test data produced can be controlled with the "pattern"
27 * property.
28 *
29 * By default the videotestsrc will generate data indefinitely, but if the
30 * #GstBaseSrc:num-buffers property is non-zero it will instead generate a
31 * fixed number of video frames and then send EOS.
32 *
33 * ## Example launch line
34 * |[
35 * gst-launch-1.0 -v videotestsrc pattern=snow ! video/x-raw,width=1280,height=720 ! autovideosink
36 * ]|
37 * Shows random noise in a video window.
38 *
39 */
40
41 #ifdef HAVE_CONFIG_H
42 #include "config.h"
43 #endif
44 #include "gstvideotestsrc.h"
45 #include "gstvideotestsrcorc.h"
46 #include "videotestsrc.h"
47
48 #include <string.h>
49 #include <stdlib.h>
50
51 GST_DEBUG_CATEGORY_STATIC (video_test_src_debug);
52 #define GST_CAT_DEFAULT video_test_src_debug
53
54 #define DEFAULT_PATTERN GST_VIDEO_TEST_SRC_SMPTE
55 #define DEFAULT_ANIMATION_MODE GST_VIDEO_TEST_SRC_FRAMES
56 #define DEFAULT_MOTION_TYPE GST_VIDEO_TEST_SRC_WAVY
57 #define DEFAULT_FLIP FALSE
58 #define DEFAULT_TIMESTAMP_OFFSET 0
59 #define DEFAULT_IS_LIVE FALSE
60 #define DEFAULT_COLOR_SPEC GST_VIDEO_TEST_SRC_BT601
61 #define DEFAULT_FOREGROUND_COLOR 0xffffffff
62 #define DEFAULT_BACKGROUND_COLOR 0xff000000
63 #define DEFAULT_HORIZONTAL_SPEED 0
64
65 enum
66 {
67 PROP_0,
68 PROP_PATTERN,
69 PROP_TIMESTAMP_OFFSET,
70 PROP_IS_LIVE,
71 PROP_K0,
72 PROP_KX,
73 PROP_KY,
74 PROP_KT,
75 PROP_KXT,
76 PROP_KYT,
77 PROP_KXY,
78 PROP_KX2,
79 PROP_KY2,
80 PROP_KT2,
81 PROP_XOFFSET,
82 PROP_YOFFSET,
83 PROP_FOREGROUND_COLOR,
84 PROP_BACKGROUND_COLOR,
85 PROP_HORIZONTAL_SPEED,
86 PROP_ANIMATION_MODE,
87 PROP_MOTION_TYPE,
88 PROP_FLIP,
89 PROP_LAST
90 };
91
92
93 #define VTS_VIDEO_CAPS GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL) "," \
94 "multiview-mode = { mono, left, right }" \
95 ";" \
96 "video/x-bayer, format=(string) { bggr, rggb, grbg, gbrg }, " \
97 "width = " GST_VIDEO_SIZE_RANGE ", " \
98 "height = " GST_VIDEO_SIZE_RANGE ", " \
99 "framerate = " GST_VIDEO_FPS_RANGE ", " \
100 "multiview-mode = { mono, left, right }"
101
102
103 static GstStaticPadTemplate gst_video_test_src_template =
104 GST_STATIC_PAD_TEMPLATE ("src",
105 GST_PAD_SRC,
106 GST_PAD_ALWAYS,
107 GST_STATIC_CAPS (VTS_VIDEO_CAPS)
108 );
109
110 #define gst_video_test_src_parent_class parent_class
111 G_DEFINE_TYPE (GstVideoTestSrc, gst_video_test_src, GST_TYPE_PUSH_SRC);
112 GST_ELEMENT_REGISTER_DEFINE (videotestsrc, "videotestsrc",
113 GST_RANK_NONE, GST_TYPE_VIDEO_TEST_SRC);
114
115 static void gst_video_test_src_set_pattern (GstVideoTestSrc * videotestsrc,
116 int pattern_type);
117 static void gst_video_test_src_set_property (GObject * object, guint prop_id,
118 const GValue * value, GParamSpec * pspec);
119 static void gst_video_test_src_get_property (GObject * object, guint prop_id,
120 GValue * value, GParamSpec * pspec);
121
122 static gboolean gst_video_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps);
123 static GstCaps *gst_video_test_src_src_fixate (GstBaseSrc * bsrc,
124 GstCaps * caps);
125
126 static gboolean gst_video_test_src_is_seekable (GstBaseSrc * psrc);
127 static gboolean gst_video_test_src_do_seek (GstBaseSrc * bsrc,
128 GstSegment * segment);
129 static gboolean gst_video_test_src_query (GstBaseSrc * bsrc, GstQuery * query);
130
131 static void gst_video_test_src_get_times (GstBaseSrc * basesrc,
132 GstBuffer * buffer, GstClockTime * start, GstClockTime * end);
133 static gboolean gst_video_test_src_decide_allocation (GstBaseSrc * bsrc,
134 GstQuery * query);
135 static GstFlowReturn gst_video_test_src_fill (GstPushSrc * psrc,
136 GstBuffer * buffer);
137 static gboolean gst_video_test_src_start (GstBaseSrc * basesrc);
138 static gboolean gst_video_test_src_stop (GstBaseSrc * basesrc);
139
140 #define GST_TYPE_VIDEO_TEST_SRC_PATTERN (gst_video_test_src_pattern_get_type ())
141 static GType
gst_video_test_src_pattern_get_type(void)142 gst_video_test_src_pattern_get_type (void)
143 {
144 static GType video_test_src_pattern_type = 0;
145 static const GEnumValue pattern_types[] = {
146 {GST_VIDEO_TEST_SRC_SMPTE, "SMPTE 100% color bars", "smpte"},
147 {GST_VIDEO_TEST_SRC_SNOW, "Random (television snow)", "snow"},
148 {GST_VIDEO_TEST_SRC_BLACK, "100% Black", "black"},
149 {GST_VIDEO_TEST_SRC_WHITE, "100% White", "white"},
150 {GST_VIDEO_TEST_SRC_RED, "Red", "red"},
151 {GST_VIDEO_TEST_SRC_GREEN, "Green", "green"},
152 {GST_VIDEO_TEST_SRC_BLUE, "Blue", "blue"},
153 {GST_VIDEO_TEST_SRC_CHECKERS1, "Checkers 1px", "checkers-1"},
154 {GST_VIDEO_TEST_SRC_CHECKERS2, "Checkers 2px", "checkers-2"},
155 {GST_VIDEO_TEST_SRC_CHECKERS4, "Checkers 4px", "checkers-4"},
156 {GST_VIDEO_TEST_SRC_CHECKERS8, "Checkers 8px", "checkers-8"},
157 {GST_VIDEO_TEST_SRC_CIRCULAR, "Circular", "circular"},
158 {GST_VIDEO_TEST_SRC_BLINK, "Blink", "blink"},
159 {GST_VIDEO_TEST_SRC_SMPTE75, "SMPTE 75% color bars", "smpte75"},
160 {GST_VIDEO_TEST_SRC_ZONE_PLATE, "Zone plate", "zone-plate"},
161 {GST_VIDEO_TEST_SRC_GAMUT, "Gamut checkers", "gamut"},
162 {GST_VIDEO_TEST_SRC_CHROMA_ZONE_PLATE, "Chroma zone plate",
163 "chroma-zone-plate"},
164 {GST_VIDEO_TEST_SRC_SOLID, "Solid color", "solid-color"},
165 {GST_VIDEO_TEST_SRC_BALL, "Moving ball", "ball"},
166 {GST_VIDEO_TEST_SRC_SMPTE100, "SMPTE 100% color bars", "smpte100"},
167 {GST_VIDEO_TEST_SRC_BAR, "Bar", "bar"},
168 {GST_VIDEO_TEST_SRC_PINWHEEL, "Pinwheel", "pinwheel"},
169 {GST_VIDEO_TEST_SRC_SPOKES, "Spokes", "spokes"},
170 {GST_VIDEO_TEST_SRC_GRADIENT, "Gradient", "gradient"},
171 {GST_VIDEO_TEST_SRC_COLORS, "Colors", "colors"},
172 {GST_VIDEO_TEST_SRC_SMPTE_RP_219, "SMPTE test pattern, RP 219 conformant",
173 "smpte-rp-219"},
174 {0, NULL, NULL}
175 };
176
177 if (!video_test_src_pattern_type) {
178 video_test_src_pattern_type =
179 g_enum_register_static ("GstVideoTestSrcPattern", pattern_types);
180 }
181 return video_test_src_pattern_type;
182 }
183
184
185 /*"animation-mode", which can
186 * take the following values: frames (current behaviour that should stay the
187 * default), running time, wall clock time.
188 */
189
190 #define GST_TYPE_VIDEO_TEST_SRC_ANIMATION_MODE (gst_video_test_src_animation_mode_get_type ())
191 static GType
gst_video_test_src_animation_mode_get_type(void)192 gst_video_test_src_animation_mode_get_type (void)
193 {
194 static GType video_test_src_animation_mode = 0;
195 static const GEnumValue animation_modes[] = {
196
197 {GST_VIDEO_TEST_SRC_FRAMES, "frame count", "frames"},
198 {GST_VIDEO_TEST_SRC_WALL_TIME, "wall clock time", "wall-time"},
199 {GST_VIDEO_TEST_SRC_RUNNING_TIME, "running time", "running-time"},
200 {0, NULL, NULL}
201 };
202
203 if (!video_test_src_animation_mode) {
204 video_test_src_animation_mode =
205 g_enum_register_static ("GstVideoTestSrcAnimationMode",
206 animation_modes);
207 }
208 return video_test_src_animation_mode;
209 }
210
211
212 #define GST_TYPE_VIDEO_TEST_SRC_MOTION_TYPE (gst_video_test_src_motion_type_get_type ())
213 static GType
gst_video_test_src_motion_type_get_type(void)214 gst_video_test_src_motion_type_get_type (void)
215 {
216 static GType video_test_src_motion_type = 0;
217 static const GEnumValue motion_types[] = {
218 {GST_VIDEO_TEST_SRC_WAVY, "Ball waves back and forth, up and down",
219 "wavy"},
220 {GST_VIDEO_TEST_SRC_SWEEP, "1 revolution per second", "sweep"},
221 {GST_VIDEO_TEST_SRC_HSWEEP, "1/2 revolution per second, then reset to top",
222 "hsweep"},
223 {0, NULL, NULL}
224 };
225
226 if (!video_test_src_motion_type) {
227 video_test_src_motion_type =
228 g_enum_register_static ("GstVideoTestSrcMotionType", motion_types);
229 }
230 return video_test_src_motion_type;
231 }
232
233
234 static void
gst_video_test_src_class_init(GstVideoTestSrcClass * klass)235 gst_video_test_src_class_init (GstVideoTestSrcClass * klass)
236 {
237 GObjectClass *gobject_class;
238 GstElementClass *gstelement_class;
239 GstBaseSrcClass *gstbasesrc_class;
240 GstPushSrcClass *gstpushsrc_class;
241
242 gobject_class = (GObjectClass *) klass;
243 gstelement_class = (GstElementClass *) klass;
244 gstbasesrc_class = (GstBaseSrcClass *) klass;
245 gstpushsrc_class = (GstPushSrcClass *) klass;
246
247 gobject_class->set_property = gst_video_test_src_set_property;
248 gobject_class->get_property = gst_video_test_src_get_property;
249
250 g_object_class_install_property (gobject_class, PROP_PATTERN,
251 g_param_spec_enum ("pattern", "Pattern",
252 "Type of test pattern to generate", GST_TYPE_VIDEO_TEST_SRC_PATTERN,
253 DEFAULT_PATTERN, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
254
255 g_object_class_install_property (gobject_class, PROP_ANIMATION_MODE,
256 g_param_spec_enum ("animation-mode", "Animation mode",
257 "For pattern=ball, which counter defines the position of the ball.",
258 GST_TYPE_VIDEO_TEST_SRC_ANIMATION_MODE, DEFAULT_ANIMATION_MODE,
259 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
260
261 g_object_class_install_property (gobject_class, PROP_MOTION_TYPE,
262 g_param_spec_enum ("motion", "Motion",
263 "For pattern=ball, what motion the ball does",
264 GST_TYPE_VIDEO_TEST_SRC_MOTION_TYPE, DEFAULT_MOTION_TYPE,
265 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
266
267 g_object_class_install_property (gobject_class, PROP_FLIP,
268 g_param_spec_boolean ("flip", "Flip",
269 "For pattern=ball, invert colors every second.",
270 DEFAULT_FLIP, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
271
272 g_object_class_install_property (gobject_class, PROP_TIMESTAMP_OFFSET,
273 g_param_spec_int64 ("timestamp-offset", "Timestamp offset",
274 "An offset added to timestamps set on buffers (in ns)", 0,
275 (G_MAXLONG == G_MAXINT64) ? G_MAXINT64 : (G_MAXLONG * GST_SECOND - 1),
276 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
277 g_object_class_install_property (gobject_class, PROP_IS_LIVE,
278 g_param_spec_boolean ("is-live", "Is Live",
279 "Whether to act as a live source", DEFAULT_IS_LIVE,
280 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
281 g_object_class_install_property (gobject_class, PROP_K0,
282 g_param_spec_int ("k0", "Zoneplate zero order phase",
283 "Zoneplate zero order phase, for generating plain fields or phase offsets",
284 G_MININT32, G_MAXINT32, 0,
285 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
286 g_object_class_install_property (gobject_class, PROP_KX,
287 g_param_spec_int ("kx", "Zoneplate 1st order x phase",
288 "Zoneplate 1st order x phase, for generating constant horizontal frequencies",
289 G_MININT32, G_MAXINT32, 0,
290 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
291 g_object_class_install_property (gobject_class, PROP_KY,
292 g_param_spec_int ("ky", "Zoneplate 1st order y phase",
293 "Zoneplate 1st order y phase, for generating content vertical frequencies",
294 G_MININT32, G_MAXINT32, 0,
295 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
296 g_object_class_install_property (gobject_class, PROP_KT,
297 g_param_spec_int ("kt", "Zoneplate 1st order t phase",
298 "Zoneplate 1st order t phase, for generating phase rotation as a function of time",
299 G_MININT32, G_MAXINT32, 0,
300 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
301 g_object_class_install_property (gobject_class, PROP_KXT,
302 g_param_spec_int ("kxt", "Zoneplate x*t product phase",
303 "Zoneplate x*t product phase, normalised to kxy/256 cycles per vertical pixel at width/2 from origin",
304 G_MININT32, G_MAXINT32, 0,
305 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
306 g_object_class_install_property (gobject_class, PROP_KYT,
307 g_param_spec_int ("kyt", "Zoneplate y*t product phase",
308 "Zoneplate y*t product phase", G_MININT32, G_MAXINT32, 0,
309 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
310 g_object_class_install_property (gobject_class, PROP_KXY,
311 g_param_spec_int ("kxy", "Zoneplate x*y product phase",
312 "Zoneplate x*y product phase", G_MININT32, G_MAXINT32, 0,
313 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
314 g_object_class_install_property (gobject_class, PROP_KX2,
315 g_param_spec_int ("kx2", "Zoneplate 2nd order x phase",
316 "Zoneplate 2nd order x phase, normalised to kx2/256 cycles per horizontal pixel at width/2 from origin",
317 G_MININT32, G_MAXINT32, 0,
318 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
319 g_object_class_install_property (gobject_class, PROP_KY2,
320 g_param_spec_int ("ky2", "Zoneplate 2nd order y phase",
321 "Zoneplate 2nd order y phase, normailsed to ky2/256 cycles per vertical pixel at height/2 from origin",
322 G_MININT32, G_MAXINT32, 0,
323 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
324 g_object_class_install_property (gobject_class, PROP_KT2,
325 g_param_spec_int ("kt2", "Zoneplate 2nd order t phase",
326 "Zoneplate 2nd order t phase, t*t/256 cycles per picture", G_MININT32,
327 G_MAXINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
328 g_object_class_install_property (gobject_class, PROP_XOFFSET,
329 g_param_spec_int ("xoffset", "Zoneplate 2nd order products x offset",
330 "Zoneplate 2nd order products x offset", G_MININT32, G_MAXINT32, 0,
331 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
332 g_object_class_install_property (gobject_class, PROP_YOFFSET,
333 g_param_spec_int ("yoffset", "Zoneplate 2nd order products y offset",
334 "Zoneplate 2nd order products y offset", G_MININT32, G_MAXINT32, 0,
335 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
336 /**
337 * GstVideoTestSrc:foreground-color
338 *
339 * Color to use for solid-color pattern and foreground color of other
340 * patterns. Default is white (0xffffffff).
341 */
342 g_object_class_install_property (gobject_class, PROP_FOREGROUND_COLOR,
343 g_param_spec_uint ("foreground-color", "Foreground Color",
344 "Foreground color to use (big-endian ARGB)", 0, G_MAXUINT32,
345 DEFAULT_FOREGROUND_COLOR,
346 G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
347 /**
348 * GstVideoTestSrc:background-color
349 *
350 * Color to use for background color of some patterns. Default is
351 * black (0xff000000).
352 */
353 g_object_class_install_property (gobject_class, PROP_BACKGROUND_COLOR,
354 g_param_spec_uint ("background-color", "Background Color",
355 "Background color to use (big-endian ARGB)", 0, G_MAXUINT32,
356 DEFAULT_BACKGROUND_COLOR,
357 G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
358
359 g_object_class_install_property (gobject_class, PROP_HORIZONTAL_SPEED,
360 g_param_spec_int ("horizontal-speed", "Horizontal Speed",
361 "Scroll image number of pixels per frame (positive is scroll to the left)",
362 G_MININT32, G_MAXINT32, DEFAULT_HORIZONTAL_SPEED,
363 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
364
365 gst_element_class_set_static_metadata (gstelement_class,
366 "Video test source", "Source/Video",
367 "Creates a test video stream", "David A. Schleef <ds@schleef.org>");
368
369 gst_element_class_add_static_pad_template (gstelement_class,
370 &gst_video_test_src_template);
371
372 gstbasesrc_class->set_caps = gst_video_test_src_setcaps;
373 gstbasesrc_class->fixate = gst_video_test_src_src_fixate;
374 gstbasesrc_class->is_seekable = gst_video_test_src_is_seekable;
375 gstbasesrc_class->do_seek = gst_video_test_src_do_seek;
376 gstbasesrc_class->query = gst_video_test_src_query;
377 gstbasesrc_class->get_times = gst_video_test_src_get_times;
378 gstbasesrc_class->start = gst_video_test_src_start;
379 gstbasesrc_class->stop = gst_video_test_src_stop;
380 gstbasesrc_class->decide_allocation = gst_video_test_src_decide_allocation;
381
382 gstpushsrc_class->fill = gst_video_test_src_fill;
383
384 gst_type_mark_as_plugin_api (GST_TYPE_VIDEO_TEST_SRC_ANIMATION_MODE, 0);
385 gst_type_mark_as_plugin_api (GST_TYPE_VIDEO_TEST_SRC_MOTION_TYPE, 0);
386 gst_type_mark_as_plugin_api (GST_TYPE_VIDEO_TEST_SRC_PATTERN, 0);
387 }
388
389 static void
gst_video_test_src_init(GstVideoTestSrc * src)390 gst_video_test_src_init (GstVideoTestSrc * src)
391 {
392 gst_video_test_src_set_pattern (src, DEFAULT_PATTERN);
393
394 src->timestamp_offset = DEFAULT_TIMESTAMP_OFFSET;
395 src->foreground_color = DEFAULT_FOREGROUND_COLOR;
396 src->background_color = DEFAULT_BACKGROUND_COLOR;
397 src->horizontal_speed = DEFAULT_HORIZONTAL_SPEED;
398 src->random_state = 0;
399
400 /* we operate in time */
401 gst_base_src_set_format (GST_BASE_SRC (src), GST_FORMAT_TIME);
402 gst_base_src_set_live (GST_BASE_SRC (src), DEFAULT_IS_LIVE);
403
404 src->animation_mode = DEFAULT_ANIMATION_MODE;
405 src->motion_type = DEFAULT_MOTION_TYPE;
406 src->flip = DEFAULT_FLIP;
407
408 }
409
410 static GstCaps *
gst_video_test_src_src_fixate(GstBaseSrc * bsrc,GstCaps * caps)411 gst_video_test_src_src_fixate (GstBaseSrc * bsrc, GstCaps * caps)
412 {
413 GstVideoTestSrc *src = GST_VIDEO_TEST_SRC (bsrc);
414 GstStructure *structure;
415
416 /* Check if foreground color has alpha, if it is the case,
417 * force color format with an alpha channel downstream */
418 if (src->foreground_color >> 24 != 255) {
419 guint i;
420 GstCaps *alpha_only_caps = gst_caps_new_empty ();
421
422 for (i = 0; i < gst_caps_get_size (caps); i++) {
423 const GstVideoFormatInfo *info;
424 const GValue *formats =
425 gst_structure_get_value (gst_caps_get_structure (caps, i),
426 "format");
427
428 if (GST_VALUE_HOLDS_LIST (formats)) {
429 GValue possible_formats = { 0, };
430 guint list_size = gst_value_list_get_size (formats);
431 guint index;
432
433 g_value_init (&possible_formats, GST_TYPE_LIST);
434 for (index = 0; index < list_size; index++) {
435 const GValue *list_item = gst_value_list_get_value (formats, index);
436 info =
437 gst_video_format_get_info (gst_video_format_from_string
438 (g_value_get_string (list_item)));
439 if (GST_VIDEO_FORMAT_INFO_HAS_ALPHA (info)) {
440 GValue tmp = { 0, };
441
442 gst_value_init_and_copy (&tmp, list_item);
443 gst_value_list_append_value (&possible_formats, &tmp);
444 }
445 }
446
447 if (gst_value_list_get_size (&possible_formats)) {
448 GstStructure *astruct =
449 gst_structure_copy (gst_caps_get_structure (caps, i));
450
451 gst_structure_set_value (astruct, "format", &possible_formats);
452 gst_caps_append_structure (alpha_only_caps, astruct);
453 }
454
455 } else if (G_VALUE_HOLDS_STRING (formats)) {
456 info =
457 gst_video_format_get_info (gst_video_format_from_string
458 (g_value_get_string (formats)));
459
460 if (GST_VIDEO_FORMAT_INFO_HAS_ALPHA (info)) {
461 gst_caps_append_structure (alpha_only_caps,
462 gst_structure_copy (gst_caps_get_structure (caps, i)));
463 }
464 } else {
465 g_assert_not_reached ();
466 GST_WARNING ("Unexpected type for video 'format' field: %s",
467 G_VALUE_TYPE_NAME (formats));
468 }
469 }
470
471 if (gst_caps_is_empty (alpha_only_caps)) {
472 GST_WARNING_OBJECT (src,
473 "Foreground color contains alpha, but downstream can't support alpha.");
474 } else {
475 gst_caps_replace (&caps, alpha_only_caps);
476 }
477 gst_caps_unref (alpha_only_caps);
478 }
479
480 caps = gst_caps_make_writable (caps);
481 structure = gst_caps_get_structure (caps, 0);
482
483 gst_structure_fixate_field_nearest_int (structure, "width", 320);
484 gst_structure_fixate_field_nearest_int (structure, "height", 240);
485
486 if (gst_structure_has_field (structure, "framerate"))
487 gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1);
488 else
489 gst_structure_set (structure, "framerate", GST_TYPE_FRACTION, 30, 1, NULL);
490
491 if (gst_structure_has_field (structure, "pixel-aspect-ratio"))
492 gst_structure_fixate_field_nearest_fraction (structure,
493 "pixel-aspect-ratio", 1, 1);
494 else
495 gst_structure_set (structure, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,
496 NULL);
497
498 if (gst_structure_has_field (structure, "colorimetry"))
499 gst_structure_fixate_field_string (structure, "colorimetry", "bt601");
500 if (gst_structure_has_field (structure, "chroma-site"))
501 gst_structure_fixate_field_string (structure, "chroma-site", "mpeg2");
502
503 if (gst_structure_has_field (structure, "interlace-mode"))
504 gst_structure_fixate_field_string (structure, "interlace-mode",
505 "progressive");
506 else
507 gst_structure_set (structure, "interlace-mode", G_TYPE_STRING,
508 "progressive", NULL);
509
510 if (gst_structure_has_field (structure, "multiview-mode"))
511 gst_structure_fixate_field_string (structure, "multiview-mode",
512 gst_video_multiview_mode_to_caps_string
513 (GST_VIDEO_MULTIVIEW_MODE_MONO));
514 else
515 gst_structure_set (structure, "multiview-mode", G_TYPE_STRING,
516 gst_video_multiview_mode_to_caps_string (GST_VIDEO_MULTIVIEW_MODE_MONO),
517 NULL);
518
519 caps = GST_BASE_SRC_CLASS (parent_class)->fixate (bsrc, caps);
520
521 return caps;
522 }
523
524 static void
gst_video_test_src_set_pattern(GstVideoTestSrc * videotestsrc,int pattern_type)525 gst_video_test_src_set_pattern (GstVideoTestSrc * videotestsrc,
526 int pattern_type)
527 {
528 videotestsrc->pattern_type = pattern_type;
529
530 GST_DEBUG_OBJECT (videotestsrc, "setting pattern to %d", pattern_type);
531
532 switch (pattern_type) {
533 case GST_VIDEO_TEST_SRC_SMPTE:
534 videotestsrc->make_image = gst_video_test_src_smpte;
535 break;
536 case GST_VIDEO_TEST_SRC_SNOW:
537 videotestsrc->make_image = gst_video_test_src_snow;
538 break;
539 case GST_VIDEO_TEST_SRC_BLACK:
540 videotestsrc->make_image = gst_video_test_src_black;
541 break;
542 case GST_VIDEO_TEST_SRC_WHITE:
543 videotestsrc->make_image = gst_video_test_src_white;
544 break;
545 case GST_VIDEO_TEST_SRC_RED:
546 videotestsrc->make_image = gst_video_test_src_red;
547 break;
548 case GST_VIDEO_TEST_SRC_GREEN:
549 videotestsrc->make_image = gst_video_test_src_green;
550 break;
551 case GST_VIDEO_TEST_SRC_BLUE:
552 videotestsrc->make_image = gst_video_test_src_blue;
553 break;
554 case GST_VIDEO_TEST_SRC_CHECKERS1:
555 videotestsrc->make_image = gst_video_test_src_checkers1;
556 break;
557 case GST_VIDEO_TEST_SRC_CHECKERS2:
558 videotestsrc->make_image = gst_video_test_src_checkers2;
559 break;
560 case GST_VIDEO_TEST_SRC_CHECKERS4:
561 videotestsrc->make_image = gst_video_test_src_checkers4;
562 break;
563 case GST_VIDEO_TEST_SRC_CHECKERS8:
564 videotestsrc->make_image = gst_video_test_src_checkers8;
565 break;
566 case GST_VIDEO_TEST_SRC_CIRCULAR:
567 videotestsrc->make_image = gst_video_test_src_circular;
568 break;
569 case GST_VIDEO_TEST_SRC_BLINK:
570 videotestsrc->make_image = gst_video_test_src_blink;
571 break;
572 case GST_VIDEO_TEST_SRC_SMPTE75:
573 videotestsrc->make_image = gst_video_test_src_smpte75;
574 break;
575 case GST_VIDEO_TEST_SRC_ZONE_PLATE:
576 videotestsrc->make_image = gst_video_test_src_zoneplate;
577 break;
578 case GST_VIDEO_TEST_SRC_GAMUT:
579 videotestsrc->make_image = gst_video_test_src_gamut;
580 break;
581 case GST_VIDEO_TEST_SRC_CHROMA_ZONE_PLATE:
582 videotestsrc->make_image = gst_video_test_src_chromazoneplate;
583 break;
584 case GST_VIDEO_TEST_SRC_SOLID:
585 videotestsrc->make_image = gst_video_test_src_solid;
586 break;
587 case GST_VIDEO_TEST_SRC_BALL:
588 videotestsrc->make_image = gst_video_test_src_ball;
589 break;
590 case GST_VIDEO_TEST_SRC_SMPTE100:
591 videotestsrc->make_image = gst_video_test_src_smpte100;
592 break;
593 case GST_VIDEO_TEST_SRC_BAR:
594 videotestsrc->make_image = gst_video_test_src_bar;
595 break;
596 case GST_VIDEO_TEST_SRC_PINWHEEL:
597 videotestsrc->make_image = gst_video_test_src_pinwheel;
598 break;
599 case GST_VIDEO_TEST_SRC_SPOKES:
600 videotestsrc->make_image = gst_video_test_src_spokes;
601 break;
602 case GST_VIDEO_TEST_SRC_GRADIENT:
603 videotestsrc->make_image = gst_video_test_src_gradient;
604 break;
605 case GST_VIDEO_TEST_SRC_COLORS:
606 videotestsrc->make_image = gst_video_test_src_colors;
607 break;
608 case GST_VIDEO_TEST_SRC_SMPTE_RP_219:
609 videotestsrc->make_image = gst_video_test_src_smpte_rp_219;
610 break;
611 default:
612 g_assert_not_reached ();
613 }
614 }
615
616 static void
gst_video_test_src_set_property(GObject * object,guint prop_id,const GValue * value,GParamSpec * pspec)617 gst_video_test_src_set_property (GObject * object, guint prop_id,
618 const GValue * value, GParamSpec * pspec)
619 {
620 GstVideoTestSrc *src = GST_VIDEO_TEST_SRC (object);
621
622 switch (prop_id) {
623 case PROP_PATTERN:
624 gst_video_test_src_set_pattern (src, g_value_get_enum (value));
625 break;
626 case PROP_TIMESTAMP_OFFSET:
627 src->timestamp_offset = g_value_get_int64 (value);
628 break;
629 case PROP_IS_LIVE:
630 gst_base_src_set_live (GST_BASE_SRC (src), g_value_get_boolean (value));
631 break;
632 case PROP_K0:
633 src->k0 = g_value_get_int (value);
634 break;
635 case PROP_KX:
636 src->kx = g_value_get_int (value);
637 break;
638 case PROP_KY:
639 src->ky = g_value_get_int (value);
640 break;
641 case PROP_KT:
642 src->kt = g_value_get_int (value);
643 break;
644 case PROP_KXT:
645 src->kxt = g_value_get_int (value);
646 break;
647 case PROP_KYT:
648 src->kyt = g_value_get_int (value);
649 break;
650 case PROP_KXY:
651 src->kxy = g_value_get_int (value);
652 break;
653 case PROP_KX2:
654 src->kx2 = g_value_get_int (value);
655 break;
656 case PROP_KY2:
657 src->ky2 = g_value_get_int (value);
658 break;
659 case PROP_KT2:
660 src->kt2 = g_value_get_int (value);
661 break;
662 case PROP_XOFFSET:
663 src->xoffset = g_value_get_int (value);
664 break;
665 case PROP_YOFFSET:
666 src->yoffset = g_value_get_int (value);
667 break;
668 case PROP_FOREGROUND_COLOR:
669 src->foreground_color = g_value_get_uint (value);
670 break;
671 case PROP_BACKGROUND_COLOR:
672 src->background_color = g_value_get_uint (value);
673 break;
674 case PROP_HORIZONTAL_SPEED:
675 src->horizontal_speed = g_value_get_int (value);
676 break;
677 case PROP_ANIMATION_MODE:
678 src->animation_mode = g_value_get_enum (value);
679 break;
680 case PROP_MOTION_TYPE:
681 src->motion_type = g_value_get_enum (value);
682 break;
683 case PROP_FLIP:
684 src->flip = g_value_get_boolean (value);
685 break;
686 default:
687 break;
688 }
689 }
690
691 static void
gst_video_test_src_get_property(GObject * object,guint prop_id,GValue * value,GParamSpec * pspec)692 gst_video_test_src_get_property (GObject * object, guint prop_id,
693 GValue * value, GParamSpec * pspec)
694 {
695 GstVideoTestSrc *src = GST_VIDEO_TEST_SRC (object);
696
697 switch (prop_id) {
698 case PROP_PATTERN:
699 g_value_set_enum (value, src->pattern_type);
700 break;
701 case PROP_TIMESTAMP_OFFSET:
702 g_value_set_int64 (value, src->timestamp_offset);
703 break;
704 case PROP_IS_LIVE:
705 g_value_set_boolean (value, gst_base_src_is_live (GST_BASE_SRC (src)));
706 break;
707 case PROP_K0:
708 g_value_set_int (value, src->k0);
709 break;
710 case PROP_KX:
711 g_value_set_int (value, src->kx);
712 break;
713 case PROP_KY:
714 g_value_set_int (value, src->ky);
715 break;
716 case PROP_KT:
717 g_value_set_int (value, src->kt);
718 break;
719 case PROP_KXT:
720 g_value_set_int (value, src->kxt);
721 break;
722 case PROP_KYT:
723 g_value_set_int (value, src->kyt);
724 break;
725 case PROP_KXY:
726 g_value_set_int (value, src->kxy);
727 break;
728 case PROP_KX2:
729 g_value_set_int (value, src->kx2);
730 break;
731 case PROP_KY2:
732 g_value_set_int (value, src->ky2);
733 break;
734 case PROP_KT2:
735 g_value_set_int (value, src->kt2);
736 break;
737 case PROP_XOFFSET:
738 g_value_set_int (value, src->xoffset);
739 break;
740 case PROP_YOFFSET:
741 g_value_set_int (value, src->yoffset);
742 break;
743 case PROP_FOREGROUND_COLOR:
744 g_value_set_uint (value, src->foreground_color);
745 break;
746 case PROP_BACKGROUND_COLOR:
747 g_value_set_uint (value, src->background_color);
748 break;
749 case PROP_HORIZONTAL_SPEED:
750 g_value_set_int (value, src->horizontal_speed);
751 break;
752 case PROP_ANIMATION_MODE:
753 g_value_set_enum (value, src->animation_mode);
754 break;
755 case PROP_MOTION_TYPE:
756 g_value_set_enum (value, src->motion_type);
757 break;
758 case PROP_FLIP:
759 g_value_set_boolean (value, src->flip);
760 break;
761 default:
762 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
763 break;
764 }
765 }
766
767 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)768 gst_video_test_src_parse_caps (const GstCaps * caps,
769 gint * width, gint * height, gint * fps_n, gint * fps_d,
770 GstVideoColorimetry * colorimetry, gint * x_inv, gint * y_inv)
771 {
772 const GstStructure *structure;
773 GstPadLinkReturn ret;
774 const GValue *framerate;
775 const gchar *str;
776
777 GST_DEBUG ("parsing caps");
778
779 structure = gst_caps_get_structure (caps, 0);
780
781 ret = gst_structure_get_int (structure, "width", width);
782 ret &= gst_structure_get_int (structure, "height", height);
783 framerate = gst_structure_get_value (structure, "framerate");
784
785 if (framerate) {
786 *fps_n = gst_value_get_fraction_numerator (framerate);
787 *fps_d = gst_value_get_fraction_denominator (framerate);
788 } else
789 goto no_framerate;
790
791 if ((str = gst_structure_get_string (structure, "colorimetry")))
792 gst_video_colorimetry_from_string (colorimetry, str);
793
794 if ((str = gst_structure_get_string (structure, "format"))) {
795 if (g_str_equal (str, "bggr")) {
796 *x_inv = *y_inv = 0;
797 } else if (g_str_equal (str, "rggb")) {
798 *x_inv = *y_inv = 1;
799 } else if (g_str_equal (str, "grbg")) {
800 *x_inv = 0;
801 *y_inv = 1;
802 } else if (g_str_equal (str, "gbrg")) {
803 *x_inv = 1;
804 *y_inv = 0;
805 } else
806 goto invalid_format;
807 }
808 return ret;
809
810 /* ERRORS */
811 no_framerate:
812 {
813 GST_DEBUG ("videotestsrc no framerate given");
814 return FALSE;
815 }
816 invalid_format:
817 {
818 GST_DEBUG ("videotestsrc invalid bayer format given");
819 return FALSE;
820 }
821 }
822
823 static gboolean
gst_video_test_src_decide_allocation(GstBaseSrc * bsrc,GstQuery * query)824 gst_video_test_src_decide_allocation (GstBaseSrc * bsrc, GstQuery * query)
825 {
826 GstVideoTestSrc *videotestsrc;
827 GstBufferPool *pool;
828 gboolean update;
829 guint size, min, max;
830 GstStructure *config;
831 GstCaps *caps = NULL;
832
833 videotestsrc = GST_VIDEO_TEST_SRC (bsrc);
834
835 if (gst_query_get_n_allocation_pools (query) > 0) {
836 gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
837
838 /* adjust size */
839 size = MAX (size, videotestsrc->info.size);
840 update = TRUE;
841 } else {
842 pool = NULL;
843 size = videotestsrc->info.size;
844 min = max = 0;
845 update = FALSE;
846 }
847
848 /* no downstream pool, make our own */
849 if (pool == NULL) {
850 if (videotestsrc->bayer)
851 pool = gst_buffer_pool_new ();
852 else
853 pool = gst_video_buffer_pool_new ();
854 }
855
856 config = gst_buffer_pool_get_config (pool);
857
858 gst_query_parse_allocation (query, &caps, NULL);
859 if (caps)
860 gst_buffer_pool_config_set_params (config, caps, size, min, max);
861
862 if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
863 gst_buffer_pool_config_add_option (config,
864 GST_BUFFER_POOL_OPTION_VIDEO_META);
865 }
866 gst_buffer_pool_set_config (pool, config);
867
868 if (update)
869 gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
870 else
871 gst_query_add_allocation_pool (query, pool, size, min, max);
872
873 if (pool)
874 gst_object_unref (pool);
875
876 return GST_BASE_SRC_CLASS (parent_class)->decide_allocation (bsrc, query);
877 }
878
879 static gboolean
gst_video_test_src_setcaps(GstBaseSrc * bsrc,GstCaps * caps)880 gst_video_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps)
881 {
882 const GstStructure *structure;
883 GstVideoTestSrc *videotestsrc;
884 GstVideoInfo info;
885 guint i;
886 guint n_lines;
887 gint offset;
888
889 videotestsrc = GST_VIDEO_TEST_SRC (bsrc);
890
891 structure = gst_caps_get_structure (caps, 0);
892
893 GST_OBJECT_LOCK (videotestsrc);
894
895 if (gst_structure_has_name (structure, "video/x-raw")) {
896 /* we can use the parsing code */
897 if (!gst_video_info_from_caps (&info, caps))
898 goto parse_failed;
899
900 } else if (gst_structure_has_name (structure, "video/x-bayer")) {
901 gint x_inv = 0, y_inv = 0;
902
903 gst_video_info_init (&info);
904
905 info.finfo = gst_video_format_get_info (GST_VIDEO_FORMAT_GRAY8);
906
907 if (!gst_video_test_src_parse_caps (caps, &info.width, &info.height,
908 &info.fps_n, &info.fps_d, &info.colorimetry, &x_inv, &y_inv))
909 goto parse_failed;
910
911 info.size = GST_ROUND_UP_4 (info.width) * info.height;
912 info.stride[0] = GST_ROUND_UP_4 (info.width);
913
914 videotestsrc->bayer = TRUE;
915 videotestsrc->x_invert = x_inv;
916 videotestsrc->y_invert = y_inv;
917 } else {
918 goto unsupported_caps;
919 }
920
921 /* create chroma subsampler */
922 if (videotestsrc->subsample)
923 gst_video_chroma_resample_free (videotestsrc->subsample);
924 videotestsrc->subsample = gst_video_chroma_resample_new (0,
925 info.chroma_site, 0, info.finfo->unpack_format, -info.finfo->w_sub[2],
926 -info.finfo->h_sub[2]);
927
928 for (i = 0; i < videotestsrc->n_lines; i++)
929 g_free (videotestsrc->lines[i]);
930 g_free (videotestsrc->lines);
931
932 if (videotestsrc->subsample != NULL) {
933 gst_video_chroma_resample_get_info (videotestsrc->subsample,
934 &n_lines, &offset);
935 } else {
936 n_lines = 1;
937 offset = 0;
938 }
939
940 videotestsrc->lines = g_malloc (sizeof (gpointer) * n_lines);
941 for (i = 0; i < n_lines; i++)
942 videotestsrc->lines[i] = g_malloc ((info.width + 16) * 8);
943 videotestsrc->n_lines = n_lines;
944 videotestsrc->offset = offset;
945
946 /* looks ok here */
947 videotestsrc->info = info;
948
949 GST_DEBUG_OBJECT (videotestsrc, "size %dx%d, %d/%d fps",
950 info.width, info.height, info.fps_n, info.fps_d);
951
952 g_free (videotestsrc->tmpline);
953 g_free (videotestsrc->tmpline2);
954 g_free (videotestsrc->tmpline_u8);
955 g_free (videotestsrc->tmpline_u16);
956 videotestsrc->tmpline_u8 = g_malloc (info.width + 8);
957 videotestsrc->tmpline = g_malloc ((info.width + 8) * 4);
958 videotestsrc->tmpline2 = g_malloc ((info.width + 8) * 4);
959 videotestsrc->tmpline_u16 = g_malloc ((info.width + 16) * 8);
960
961 videotestsrc->accum_rtime += videotestsrc->running_time;
962 videotestsrc->accum_frames += videotestsrc->n_frames;
963
964 videotestsrc->running_time = 0;
965 videotestsrc->n_frames = 0;
966
967 GST_OBJECT_UNLOCK (videotestsrc);
968
969 return TRUE;
970
971 /* ERRORS */
972 parse_failed:
973 {
974 GST_OBJECT_UNLOCK (videotestsrc);
975 GST_DEBUG_OBJECT (bsrc, "failed to parse caps");
976 return FALSE;
977 }
978 unsupported_caps:
979 {
980 GST_OBJECT_UNLOCK (videotestsrc);
981 GST_DEBUG_OBJECT (bsrc, "unsupported caps: %" GST_PTR_FORMAT, caps);
982 return FALSE;
983 }
984 }
985
986 static gboolean
gst_video_test_src_query(GstBaseSrc * bsrc,GstQuery * query)987 gst_video_test_src_query (GstBaseSrc * bsrc, GstQuery * query)
988 {
989 gboolean res = FALSE;
990 GstVideoTestSrc *src;
991
992 src = GST_VIDEO_TEST_SRC (bsrc);
993
994 switch (GST_QUERY_TYPE (query)) {
995 case GST_QUERY_CONVERT:
996 {
997 GstFormat src_fmt, dest_fmt;
998 gint64 src_val, dest_val;
999
1000 GST_OBJECT_LOCK (src);
1001 gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
1002 res =
1003 gst_video_info_convert (&src->info, src_fmt, src_val, dest_fmt,
1004 &dest_val);
1005 gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
1006 GST_OBJECT_UNLOCK (src);
1007 break;
1008 }
1009 case GST_QUERY_LATENCY:
1010 {
1011 GST_OBJECT_LOCK (src);
1012 if (src->info.fps_n > 0) {
1013 GstClockTime latency;
1014
1015 latency =
1016 gst_util_uint64_scale (GST_SECOND, src->info.fps_d,
1017 src->info.fps_n);
1018 GST_OBJECT_UNLOCK (src);
1019 gst_query_set_latency (query,
1020 gst_base_src_is_live (GST_BASE_SRC_CAST (src)), latency,
1021 GST_CLOCK_TIME_NONE);
1022 GST_DEBUG_OBJECT (src, "Reporting latency of %" GST_TIME_FORMAT,
1023 GST_TIME_ARGS (latency));
1024 res = TRUE;
1025 } else {
1026 GST_OBJECT_UNLOCK (src);
1027 }
1028 break;
1029 }
1030 case GST_QUERY_DURATION:{
1031 if (bsrc->num_buffers != -1) {
1032 GstFormat format;
1033
1034 gst_query_parse_duration (query, &format, NULL);
1035 switch (format) {
1036 case GST_FORMAT_TIME:{
1037 gint64 dur;
1038
1039 GST_OBJECT_LOCK (src);
1040 if (src->info.fps_n) {
1041 dur = gst_util_uint64_scale_int_round (bsrc->num_buffers
1042 * GST_SECOND, src->info.fps_d, src->info.fps_n);
1043 res = TRUE;
1044 gst_query_set_duration (query, GST_FORMAT_TIME, dur);
1045 }
1046 GST_OBJECT_UNLOCK (src);
1047 goto done;
1048 }
1049 case GST_FORMAT_BYTES:
1050 GST_OBJECT_LOCK (src);
1051 res = TRUE;
1052 gst_query_set_duration (query, GST_FORMAT_BYTES,
1053 bsrc->num_buffers * src->info.size);
1054 GST_OBJECT_UNLOCK (src);
1055 goto done;
1056 default:
1057 break;
1058 }
1059 }
1060 /* fall through */
1061 }
1062 default:
1063 res = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query);
1064 break;
1065 }
1066 done:
1067 return res;
1068 }
1069
1070 static void
gst_video_test_src_get_times(GstBaseSrc * basesrc,GstBuffer * buffer,GstClockTime * start,GstClockTime * end)1071 gst_video_test_src_get_times (GstBaseSrc * basesrc, GstBuffer * buffer,
1072 GstClockTime * start, GstClockTime * end)
1073 {
1074 /* for live sources, sync on the timestamp of the buffer */
1075 if (gst_base_src_is_live (basesrc)) {
1076 GstClockTime timestamp = GST_BUFFER_PTS (buffer);
1077
1078 if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
1079 /* get duration to calculate end time */
1080 GstClockTime duration = GST_BUFFER_DURATION (buffer);
1081
1082 if (GST_CLOCK_TIME_IS_VALID (duration)) {
1083 *end = timestamp + duration;
1084 }
1085 *start = timestamp;
1086 }
1087 } else {
1088 *start = -1;
1089 *end = -1;
1090 }
1091 }
1092
1093 static gboolean
gst_video_test_src_do_seek(GstBaseSrc * bsrc,GstSegment * segment)1094 gst_video_test_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment)
1095 {
1096 GstClockTime position;
1097 GstVideoTestSrc *src;
1098
1099 src = GST_VIDEO_TEST_SRC (bsrc);
1100
1101 segment->time = segment->start;
1102 position = segment->position;
1103 src->reverse = segment->rate < 0;
1104
1105 /* now move to the position indicated */
1106 if (src->info.fps_n) {
1107 src->n_frames = gst_util_uint64_scale (position,
1108 src->info.fps_n, src->info.fps_d * GST_SECOND);
1109 } else {
1110 src->n_frames = 0;
1111 }
1112 src->accum_frames = 0;
1113 src->accum_rtime = 0;
1114 if (src->info.fps_n) {
1115 src->running_time = gst_util_uint64_scale (src->n_frames,
1116 src->info.fps_d * GST_SECOND, src->info.fps_n);
1117 } else {
1118 /* FIXME : Not sure what to set here */
1119 src->running_time = 0;
1120 }
1121
1122 g_assert (src->running_time <= position);
1123
1124 return TRUE;
1125 }
1126
1127 static gboolean
gst_video_test_src_is_seekable(GstBaseSrc * psrc)1128 gst_video_test_src_is_seekable (GstBaseSrc * psrc)
1129 {
1130 /* we're seekable... */
1131 return TRUE;
1132 }
1133
1134 static GstFlowReturn
gst_video_test_src_fill(GstPushSrc * psrc,GstBuffer * buffer)1135 gst_video_test_src_fill (GstPushSrc * psrc, GstBuffer * buffer)
1136 {
1137 GstVideoTestSrc *src;
1138 GstClockTime next_time;
1139 GstVideoFrame frame;
1140 gconstpointer pal;
1141 gsize palsize;
1142
1143 src = GST_VIDEO_TEST_SRC (psrc);
1144
1145 if (G_UNLIKELY (GST_VIDEO_INFO_FORMAT (&src->info) ==
1146 GST_VIDEO_FORMAT_UNKNOWN))
1147 goto not_negotiated;
1148
1149 /* 0 framerate and we are at the second frame, eos */
1150 if (G_UNLIKELY (src->info.fps_n == 0 && src->n_frames == 1))
1151 goto eos;
1152
1153 if (G_UNLIKELY (src->n_frames == -1)) {
1154 /* EOS for reverse playback */
1155 goto eos;
1156 }
1157
1158 GST_LOG_OBJECT (src,
1159 "creating buffer from pool for frame %" G_GINT64_FORMAT, src->n_frames);
1160
1161 if (!gst_video_frame_map (&frame, &src->info, buffer, GST_MAP_WRITE))
1162 goto invalid_frame;
1163
1164 GST_BUFFER_PTS (buffer) =
1165 src->accum_rtime + src->timestamp_offset + src->running_time;
1166 GST_BUFFER_DTS (buffer) = GST_CLOCK_TIME_NONE;
1167
1168 gst_object_sync_values (GST_OBJECT (psrc), GST_BUFFER_PTS (buffer));
1169
1170 src->make_image (src, GST_BUFFER_PTS (buffer), &frame);
1171
1172 if ((pal = gst_video_format_get_palette (GST_VIDEO_FRAME_FORMAT (&frame),
1173 &palsize))) {
1174 memcpy (GST_VIDEO_FRAME_PLANE_DATA (&frame, 1), pal, palsize);
1175 }
1176
1177 gst_video_frame_unmap (&frame);
1178
1179 GST_DEBUG_OBJECT (src, "Timestamp: %" GST_TIME_FORMAT " = accumulated %"
1180 GST_TIME_FORMAT " + offset: %"
1181 GST_TIME_FORMAT " + running time: %" GST_TIME_FORMAT,
1182 GST_TIME_ARGS (GST_BUFFER_PTS (buffer)), GST_TIME_ARGS (src->accum_rtime),
1183 GST_TIME_ARGS (src->timestamp_offset), GST_TIME_ARGS (src->running_time));
1184
1185 GST_BUFFER_OFFSET (buffer) = src->accum_frames + src->n_frames;
1186 if (src->reverse) {
1187 src->n_frames--;
1188 } else {
1189 src->n_frames++;
1190 }
1191 GST_BUFFER_OFFSET_END (buffer) = GST_BUFFER_OFFSET (buffer) + 1;
1192 if (src->info.fps_n) {
1193 next_time = gst_util_uint64_scale (src->n_frames,
1194 src->info.fps_d * GST_SECOND, src->info.fps_n);
1195 if (src->reverse) {
1196 /* We already decremented to next frame */
1197 GstClockTime prev_pts = gst_util_uint64_scale (src->n_frames + 2,
1198 src->info.fps_d * GST_SECOND, src->info.fps_n);
1199
1200 GST_BUFFER_DURATION (buffer) = prev_pts - GST_BUFFER_PTS (buffer);
1201 } else {
1202 GST_BUFFER_DURATION (buffer) = next_time - src->running_time;
1203 }
1204 } else {
1205 next_time = src->timestamp_offset;
1206 /* NONE means forever */
1207 GST_BUFFER_DURATION (buffer) = GST_CLOCK_TIME_NONE;
1208 }
1209
1210 src->running_time = next_time;
1211
1212 return GST_FLOW_OK;
1213
1214 not_negotiated:
1215 {
1216 return GST_FLOW_NOT_NEGOTIATED;
1217 }
1218 eos:
1219 {
1220 GST_DEBUG_OBJECT (src, "eos: 0 framerate, frame %d", (gint) src->n_frames);
1221 return GST_FLOW_EOS;
1222 }
1223 invalid_frame:
1224 {
1225 GST_DEBUG_OBJECT (src, "invalid frame");
1226 return GST_FLOW_OK;
1227 }
1228 }
1229
1230 static gboolean
gst_video_test_src_start(GstBaseSrc * basesrc)1231 gst_video_test_src_start (GstBaseSrc * basesrc)
1232 {
1233 GstVideoTestSrc *src = GST_VIDEO_TEST_SRC (basesrc);
1234
1235 GST_OBJECT_LOCK (src);
1236 src->running_time = 0;
1237 src->n_frames = 0;
1238 src->accum_frames = 0;
1239 src->accum_rtime = 0;
1240
1241 gst_video_info_init (&src->info);
1242 GST_OBJECT_UNLOCK (src);
1243
1244 return TRUE;
1245 }
1246
1247 static gboolean
gst_video_test_src_stop(GstBaseSrc * basesrc)1248 gst_video_test_src_stop (GstBaseSrc * basesrc)
1249 {
1250 GstVideoTestSrc *src = GST_VIDEO_TEST_SRC (basesrc);
1251 guint i;
1252
1253 g_free (src->tmpline);
1254 src->tmpline = NULL;
1255 g_free (src->tmpline2);
1256 src->tmpline2 = NULL;
1257 g_free (src->tmpline_u8);
1258 src->tmpline_u8 = NULL;
1259 g_free (src->tmpline_u16);
1260 src->tmpline_u16 = NULL;
1261 if (src->subsample)
1262 gst_video_chroma_resample_free (src->subsample);
1263 src->subsample = NULL;
1264
1265 for (i = 0; i < src->n_lines; i++)
1266 g_free (src->lines[i]);
1267 g_free (src->lines);
1268 src->n_lines = 0;
1269 src->lines = NULL;
1270
1271 return TRUE;
1272 }
1273
1274 static gboolean
plugin_init(GstPlugin * plugin)1275 plugin_init (GstPlugin * plugin)
1276 {
1277 GST_DEBUG_CATEGORY_INIT (video_test_src_debug, "videotestsrc", 0,
1278 "Video Test Source");
1279
1280 return GST_ELEMENT_REGISTER (videotestsrc, plugin);
1281 }
1282
1283 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
1284 GST_VERSION_MINOR,
1285 videotestsrc,
1286 "Creates a test video stream",
1287 plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
1288