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