3 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
4 * Copyright (C) 2002,2007 David A. Schleef <ds@schleef.org>
5 * Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
24 * SECTION:element-gltestsrc
28 * The gltestsrc element is used to produce test video texture.
29 * The video test produced can be controlled with the "pattern"
32 * <title>Example launch line</title>
35 * gst-launch -v gltestsrc pattern=smpte ! glimagesink
37 * Shows original SMPTE color bars in a window.
46 #include "gstgltestsrc.h"
47 #include "gltestsrc.h"
48 #include <gst/gst-i18n-plugin.h>
50 #if GST_GL_HAVE_PLATFORM_EGL
51 #include <gst/gl/egl/gsteglimagememory.h>
54 #define USE_PEER_BUFFERALLOC
56 GST_DEBUG_CATEGORY_STATIC (gl_test_src_debug);
57 #define GST_CAT_DEFAULT gl_test_src_debug
64 PROP_TIMESTAMP_OFFSET,
69 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
72 GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
73 (GST_CAPS_FEATURE_MEMORY_GL_MEMORY,
75 #if GST_GL_HAVE_PLATFORM_EGL
76 GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_EGL_IMAGE,
79 GST_VIDEO_CAPS_MAKE_WITH_FEATURES
80 (GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META,
81 "RGBA") "; " GST_VIDEO_CAPS_MAKE (GST_GL_COLOR_CONVERT_FORMATS))
84 #define gst_gl_test_src_parent_class parent_class
85 G_DEFINE_TYPE (GstGLTestSrc, gst_gl_test_src, GST_TYPE_PUSH_SRC);
87 static void gst_gl_test_src_set_pattern (GstGLTestSrc * gltestsrc,
89 static void gst_gl_test_src_set_property (GObject * object, guint prop_id,
90 const GValue * value, GParamSpec * pspec);
91 static void gst_gl_test_src_get_property (GObject * object, guint prop_id,
92 GValue * value, GParamSpec * pspec);
93 static void gst_gl_test_src_dispose (GObject * object);
95 static gboolean gst_gl_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps);
96 static GstCaps *gst_gl_test_src_fixate (GstBaseSrc * bsrc, GstCaps * caps);
98 static gboolean gst_gl_test_src_is_seekable (GstBaseSrc * psrc);
99 static gboolean gst_gl_test_src_do_seek (GstBaseSrc * bsrc,
100 GstSegment * segment);
101 static gboolean gst_gl_test_src_query (GstBaseSrc * bsrc, GstQuery * query);
102 static void gst_gl_test_src_set_context (GstElement * element,
103 GstContext * context);
105 static void gst_gl_test_src_get_times (GstBaseSrc * basesrc,
106 GstBuffer * buffer, GstClockTime * start, GstClockTime * end);
107 static GstFlowReturn gst_gl_test_src_fill (GstPushSrc * psrc,
109 static gboolean gst_gl_test_src_start (GstBaseSrc * basesrc);
110 static gboolean gst_gl_test_src_stop (GstBaseSrc * basesrc);
111 static gboolean gst_gl_test_src_decide_allocation (GstBaseSrc * basesrc,
114 static void gst_gl_test_src_callback (gpointer stuff);
116 static gboolean gst_gl_test_src_init_shader (GstGLTestSrc * gltestsrc);
118 #define GST_TYPE_GL_TEST_SRC_PATTERN (gst_gl_test_src_pattern_get_type ())
120 gst_gl_test_src_pattern_get_type (void)
122 static GType gl_test_src_pattern_type = 0;
123 static const GEnumValue pattern_types[] = {
124 {GST_GL_TEST_SRC_SMPTE, "SMPTE 100% color bars", "smpte"},
125 {GST_GL_TEST_SRC_SNOW, "Random (television snow)", "snow"},
126 {GST_GL_TEST_SRC_BLACK, "100% Black", "black"},
127 {GST_GL_TEST_SRC_WHITE, "100% White", "white"},
128 {GST_GL_TEST_SRC_RED, "Red", "red"},
129 {GST_GL_TEST_SRC_GREEN, "Green", "green"},
130 {GST_GL_TEST_SRC_BLUE, "Blue", "blue"},
131 {GST_GL_TEST_SRC_CHECKERS1, "Checkers 1px", "checkers-1"},
132 {GST_GL_TEST_SRC_CHECKERS2, "Checkers 2px", "checkers-2"},
133 {GST_GL_TEST_SRC_CHECKERS4, "Checkers 4px", "checkers-4"},
134 {GST_GL_TEST_SRC_CHECKERS8, "Checkers 8px", "checkers-8"},
135 {GST_GL_TEST_SRC_CIRCULAR, "Circular", "circular"},
136 {GST_GL_TEST_SRC_BLINK, "Blink", "blink"},
137 {GST_GL_TEST_SRC_MANDELBROT, "Mandelbrot Fractal", "mandelbrot"},
141 if (!gl_test_src_pattern_type) {
142 gl_test_src_pattern_type =
143 g_enum_register_static ("GstGLTestSrcPattern", pattern_types);
145 return gl_test_src_pattern_type;
149 gst_gl_test_src_class_init (GstGLTestSrcClass * klass)
151 GObjectClass *gobject_class;
152 GstBaseSrcClass *gstbasesrc_class;
153 GstPushSrcClass *gstpushsrc_class;
154 GstElementClass *element_class;
156 GST_DEBUG_CATEGORY_INIT (gl_test_src_debug, "gltestsrc", 0,
157 "Video Test Source");
159 gobject_class = (GObjectClass *) klass;
160 gstbasesrc_class = (GstBaseSrcClass *) klass;
161 gstpushsrc_class = (GstPushSrcClass *) klass;
162 element_class = GST_ELEMENT_CLASS (klass);
164 gobject_class->set_property = gst_gl_test_src_set_property;
165 gobject_class->get_property = gst_gl_test_src_get_property;
166 gobject_class->dispose = gst_gl_test_src_dispose;
168 g_object_class_install_property (gobject_class, PROP_OTHER_CONTEXT,
169 g_param_spec_object ("other-context",
170 "External OpenGL context",
171 "Give an external OpenGL context with which to share textures",
172 GST_GL_TYPE_CONTEXT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
173 g_object_class_install_property (gobject_class, PROP_PATTERN,
174 g_param_spec_enum ("pattern", "Pattern",
175 "Type of test pattern to generate", GST_TYPE_GL_TEST_SRC_PATTERN,
176 GST_GL_TEST_SRC_SMPTE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
177 g_object_class_install_property (gobject_class,
178 PROP_TIMESTAMP_OFFSET, g_param_spec_int64 ("timestamp-offset",
180 "An offset added to timestamps set on buffers (in ns)", G_MININT64,
181 G_MAXINT64, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
182 g_object_class_install_property (gobject_class, PROP_IS_LIVE,
183 g_param_spec_boolean ("is-live", "Is Live",
184 "Whether to act as a live source", FALSE,
185 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
187 gst_element_class_set_metadata (element_class, "Video test source",
188 "Source/Video", "Creates a test video stream",
189 "David A. Schleef <ds@schleef.org>");
191 gst_element_class_add_pad_template (element_class,
192 gst_static_pad_template_get (&src_factory));
194 element_class->set_context = gst_gl_test_src_set_context;
196 gstbasesrc_class->set_caps = gst_gl_test_src_setcaps;
197 gstbasesrc_class->is_seekable = gst_gl_test_src_is_seekable;
198 gstbasesrc_class->do_seek = gst_gl_test_src_do_seek;
199 gstbasesrc_class->query = gst_gl_test_src_query;
200 gstbasesrc_class->get_times = gst_gl_test_src_get_times;
201 gstbasesrc_class->start = gst_gl_test_src_start;
202 gstbasesrc_class->stop = gst_gl_test_src_stop;
203 gstbasesrc_class->fixate = gst_gl_test_src_fixate;
204 gstbasesrc_class->decide_allocation = gst_gl_test_src_decide_allocation;
206 gstpushsrc_class->fill = gst_gl_test_src_fill;
210 gst_gl_test_src_init (GstGLTestSrc * src)
212 gst_gl_test_src_set_pattern (src, GST_GL_TEST_SRC_SMPTE);
214 src->timestamp_offset = 0;
216 /* we operate in time */
217 gst_base_src_set_format (GST_BASE_SRC (src), GST_FORMAT_TIME);
218 gst_base_src_set_live (GST_BASE_SRC (src), FALSE);
222 gst_gl_test_src_fixate (GstBaseSrc * bsrc, GstCaps * caps)
224 GstStructure *structure;
226 GST_DEBUG ("fixate");
228 caps = gst_caps_make_writable (caps);
230 structure = gst_caps_get_structure (caps, 0);
232 gst_structure_fixate_field_nearest_int (structure, "width", 320);
233 gst_structure_fixate_field_nearest_int (structure, "height", 240);
234 gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1);
236 caps = GST_BASE_SRC_CLASS (parent_class)->fixate (bsrc, caps);
241 const gchar *snow_vertex_src = "attribute vec4 position; \
244 varying vec2 out_uv; \
247 gl_Position = mvp * position; \
251 const gchar *snow_fragment_src = "uniform float time; \
252 varying vec2 out_uv; \
254 float rand(vec2 co){ \
255 return fract(sin(dot(co.xy, vec2(12.9898,78.233))) * 43758.5453); \
259 gl_FragColor = rand(time * out_uv) * vec4(1); \
262 const gchar *mandelbrot_vertex_src = "attribute vec4 position; \
265 uniform float aspect_ratio; \
266 varying vec2 fractal_position; \
270 gl_Position = mvp * position; \
271 fractal_position = vec2(uv.y - 0.8, aspect_ratio * (uv.x - 0.5)); \
272 fractal_position *= 2.5; \
275 const gchar *mandelbrot_fragment_src = "uniform float time; \
276 varying vec2 fractal_position; \
278 const vec4 K = vec4(1.0, 0.66, 0.33, 3.0); \
280 vec4 hsv_to_rgb(float hue, float saturation, float value) { \
281 vec4 p = abs(fract(vec4(hue) + K) * 6.0 - K.wwww); \
282 return value * mix(K.xxxx, clamp(p - K.xxxx, 0.0, 1.0), saturation); \
285 vec4 i_to_rgb(int i) { \
286 float hue = float(i) / 100.0 + sin(time); \
287 return hsv_to_rgb(hue, 0.5, 0.8); \
290 vec2 pow_2_complex(vec2 c) { \
291 return vec2(c.x*c.x - c.y*c.y, 2.0 * c.x * c.y); \
294 vec2 mandelbrot(vec2 c, vec2 c0) { \
295 return pow_2_complex(c) + c0; \
298 vec4 iterate_pixel(vec2 position) { \
300 for (int i=0; i < 100; i++) { \
301 if (c.x*c.x + c.y*c.y > 2.0*2.0) \
302 return i_to_rgb(i); \
303 c = mandelbrot(c, position); \
305 return vec4(0, 0, 0, 1); \
309 gl_FragColor = iterate_pixel(fractal_position); \
313 const gchar *checkers_vertex_src = "attribute vec4 position; \
317 gl_Position = mvp * position; \
320 const gchar *checkers_fragment_src = "uniform float checker_width; \
323 vec2 xy_index= floor((gl_FragCoord.xy-vec2(0.5,0.5))/checker_width); \
324 vec2 xy_mod=mod(xy_index,vec2(2.0,2.0)); \
325 float result=mod(xy_mod.x+xy_mod.y,2.0); \
326 gl_FragColor.r=step(result,0.5); \
327 gl_FragColor.g=1.0-gl_FragColor.r; \
328 gl_FragColor.ba=vec2(0,1); \
333 gst_gl_test_src_set_pattern (GstGLTestSrc * gltestsrc, gint pattern_type)
335 gltestsrc->pattern_type = pattern_type;
337 GST_DEBUG_OBJECT (gltestsrc, "setting pattern to %d", pattern_type);
339 switch (pattern_type) {
340 case GST_GL_TEST_SRC_SMPTE:
341 gltestsrc->make_image = gst_gl_test_src_smpte;
343 case GST_GL_TEST_SRC_SNOW:
344 gltestsrc->vertex_src = snow_vertex_src;
345 gltestsrc->fragment_src = snow_fragment_src;
346 gltestsrc->make_image = gst_gl_test_src_shader;
348 case GST_GL_TEST_SRC_BLACK:
349 gltestsrc->make_image = gst_gl_test_src_black;
351 case GST_GL_TEST_SRC_WHITE:
352 gltestsrc->make_image = gst_gl_test_src_white;
354 case GST_GL_TEST_SRC_RED:
355 gltestsrc->make_image = gst_gl_test_src_red;
357 case GST_GL_TEST_SRC_GREEN:
358 gltestsrc->make_image = gst_gl_test_src_green;
360 case GST_GL_TEST_SRC_BLUE:
361 gltestsrc->make_image = gst_gl_test_src_blue;
363 case GST_GL_TEST_SRC_CHECKERS1:
364 gltestsrc->vertex_src = checkers_vertex_src;
365 gltestsrc->fragment_src = checkers_fragment_src;
366 gltestsrc->make_image = gst_gl_test_src_checkers1;
368 case GST_GL_TEST_SRC_CHECKERS2:
369 gltestsrc->vertex_src = checkers_vertex_src;
370 gltestsrc->fragment_src = checkers_fragment_src;
371 gltestsrc->make_image = gst_gl_test_src_checkers2;
373 case GST_GL_TEST_SRC_CHECKERS4:
374 gltestsrc->vertex_src = checkers_vertex_src;
375 gltestsrc->fragment_src = checkers_fragment_src;
376 gltestsrc->make_image = gst_gl_test_src_checkers4;
378 case GST_GL_TEST_SRC_CHECKERS8:
379 gltestsrc->vertex_src = checkers_vertex_src;
380 gltestsrc->fragment_src = checkers_fragment_src;
381 gltestsrc->make_image = gst_gl_test_src_checkers8;
383 case GST_GL_TEST_SRC_CIRCULAR:
384 gltestsrc->make_image = gst_gl_test_src_circular;
386 case GST_GL_TEST_SRC_BLINK:
387 gltestsrc->make_image = gst_gl_test_src_black;
389 case GST_GL_TEST_SRC_MANDELBROT:
390 gltestsrc->vertex_src = mandelbrot_vertex_src;
391 gltestsrc->fragment_src = mandelbrot_fragment_src;
392 gltestsrc->make_image = gst_gl_test_src_shader;
395 g_assert_not_reached ();
400 gst_gl_test_src_dispose (GObject * object)
402 GstGLTestSrc *src = GST_GL_TEST_SRC (object);
404 if (src->other_context)
405 gst_object_unref (src->other_context);
406 src->other_context = NULL;
408 G_OBJECT_CLASS (parent_class)->dispose (object);
412 gst_gl_test_src_set_property (GObject * object, guint prop_id,
413 const GValue * value, GParamSpec * pspec)
415 GstGLTestSrc *src = GST_GL_TEST_SRC (object);
418 case PROP_OTHER_CONTEXT:
419 if (src->other_context)
420 gst_object_unref (src->other_context);
421 src->other_context = g_value_dup_object (value);
424 gst_gl_test_src_set_pattern (src, g_value_get_enum (value));
426 case PROP_TIMESTAMP_OFFSET:
427 src->timestamp_offset = g_value_get_int64 (value);
430 gst_base_src_set_live (GST_BASE_SRC (src), g_value_get_boolean (value));
438 gst_gl_test_src_get_property (GObject * object, guint prop_id,
439 GValue * value, GParamSpec * pspec)
441 GstGLTestSrc *src = GST_GL_TEST_SRC (object);
444 case PROP_OTHER_CONTEXT:
445 g_value_set_object (value, src->other_context);
448 g_value_set_enum (value, src->pattern_type);
450 case PROP_TIMESTAMP_OFFSET:
451 g_value_set_int64 (value, src->timestamp_offset);
454 g_value_set_boolean (value, gst_base_src_is_live (GST_BASE_SRC (src)));
457 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
463 gst_gl_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps)
465 GstGLTestSrc *gltestsrc = GST_GL_TEST_SRC (bsrc);
467 GST_DEBUG ("setcaps");
469 if (!gst_video_info_from_caps (&gltestsrc->out_info, caps))
472 gltestsrc->negotiated = TRUE;
474 gst_caps_replace (&gltestsrc->out_caps, caps);
481 GST_WARNING ("wrong caps");
487 gst_gl_test_src_set_context (GstElement * element, GstContext * context)
489 GstGLTestSrc *src = GST_GL_TEST_SRC (element);
491 gst_gl_handle_set_context (element, context, &src->display);
495 gst_gl_test_src_query (GstBaseSrc * bsrc, GstQuery * query)
497 gboolean res = FALSE;
500 src = GST_GL_TEST_SRC (bsrc);
502 switch (GST_QUERY_TYPE (query)) {
503 case GST_QUERY_CONTEXT:
505 res = gst_gl_handle_context_query ((GstElement *) src, query,
509 case GST_QUERY_CONVERT:
511 GstFormat src_fmt, dest_fmt;
512 gint64 src_val, dest_val;
514 gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
516 gst_video_info_convert (&src->out_info, src_fmt, src_val, dest_fmt,
518 gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
522 res = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query);
529 gst_gl_test_src_get_times (GstBaseSrc * basesrc, GstBuffer * buffer,
530 GstClockTime * start, GstClockTime * end)
532 /* for live sources, sync on the timestamp of the buffer */
533 if (gst_base_src_is_live (basesrc)) {
534 GstClockTime timestamp = GST_BUFFER_TIMESTAMP (buffer);
536 if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
537 /* get duration to calculate end time */
538 GstClockTime duration = GST_BUFFER_DURATION (buffer);
540 if (GST_CLOCK_TIME_IS_VALID (duration))
541 *end = timestamp + duration;
551 gst_gl_test_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment)
556 src = GST_GL_TEST_SRC (bsrc);
558 segment->time = segment->start;
559 time = segment->position;
561 /* now move to the time indicated */
562 if (src->out_info.fps_n) {
563 src->n_frames = gst_util_uint64_scale (time,
564 src->out_info.fps_n, src->out_info.fps_d * GST_SECOND);
568 if (src->out_info.fps_n) {
569 src->running_time = gst_util_uint64_scale (src->n_frames,
570 src->out_info.fps_d * GST_SECOND, src->out_info.fps_n);
572 /* FIXME : Not sure what to set here */
573 src->running_time = 0;
576 g_return_val_if_fail (src->running_time <= time, FALSE);
582 gst_gl_test_src_is_seekable (GstBaseSrc * psrc)
584 /* we're seekable... */
589 gst_gl_test_src_init_shader (GstGLTestSrc * gltestsrc)
591 if (gst_gl_context_get_gl_api (gltestsrc->context)) {
592 /* blocking call, wait until the opengl thread has compiled the shader */
593 if (gltestsrc->vertex_src == NULL)
595 return gst_gl_context_gen_shader (gltestsrc->context, gltestsrc->vertex_src,
596 gltestsrc->fragment_src, &gltestsrc->shader);
602 gst_gl_test_src_fill (GstPushSrc * psrc, GstBuffer * buffer)
604 GstGLTestSrc *src = GST_GL_TEST_SRC (psrc);
605 GstClockTime next_time;
607 GstVideoFrame out_frame;
609 gboolean to_download =
610 gst_caps_features_is_equal (GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY,
611 gst_caps_get_features (src->out_caps, 0));
612 GstMapFlags out_map_flags = GST_MAP_WRITE;
614 to_download |= !gst_is_gl_memory (gst_buffer_peek_memory (buffer, 0));
617 out_map_flags |= GST_MAP_GL;
619 if (G_UNLIKELY (!src->negotiated || !src->context))
622 width = GST_VIDEO_INFO_WIDTH (&src->out_info);
623 height = GST_VIDEO_INFO_HEIGHT (&src->out_info);
625 /* 0 framerate and we are at the second frame, eos */
626 if (G_UNLIKELY (GST_VIDEO_INFO_FPS_N (&src->out_info) == 0
627 && src->n_frames == 1))
630 if (src->pattern_type == GST_GL_TEST_SRC_BLINK) {
631 if (src->n_frames & 0x1)
632 src->make_image = gst_gl_test_src_white;
634 src->make_image = gst_gl_test_src_black;
637 if (!gst_video_frame_map (&out_frame, &src->out_info, buffer, out_map_flags)) {
638 return GST_FLOW_NOT_NEGOTIATED;
642 out_tex = *(guint *) out_frame.data[0];
644 GST_INFO ("Output Buffer does not contain correct meta, "
645 "attempting to wrap for download");
648 src->download = gst_gl_download_new (src->context);
650 gst_gl_download_set_format (src->download, &out_frame.info);
652 if (!src->out_tex_id) {
653 gst_gl_context_gen_texture (src->context, &src->out_tex_id,
654 GST_VIDEO_FORMAT_RGBA, GST_VIDEO_FRAME_WIDTH (&out_frame),
655 GST_VIDEO_FRAME_HEIGHT (&out_frame));
657 out_tex = src->out_tex_id;
660 gst_buffer_replace (&src->buffer, buffer);
662 //blocking call, generate a FBO
663 if (!gst_gl_context_use_fbo_v2 (src->context, width, height, src->fbo,
664 src->depthbuffer, out_tex, gst_gl_test_src_callback,
670 if (!gst_gl_download_perform_with_data (src->download, out_tex,
672 GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, ("%s",
673 "Failed to init upload format"), (NULL));
677 gst_video_frame_unmap (&out_frame);
679 GST_BUFFER_TIMESTAMP (buffer) = src->timestamp_offset + src->running_time;
680 GST_BUFFER_OFFSET (buffer) = src->n_frames;
682 GST_BUFFER_OFFSET_END (buffer) = src->n_frames;
683 if (src->out_info.fps_n) {
684 next_time = gst_util_uint64_scale_int (src->n_frames * GST_SECOND,
685 src->out_info.fps_d, src->out_info.fps_n);
686 GST_BUFFER_DURATION (buffer) = next_time - src->running_time;
688 next_time = src->timestamp_offset;
689 /* NONE means forever */
690 GST_BUFFER_DURATION (buffer) = GST_CLOCK_TIME_NONE;
693 src->running_time = next_time;
699 GST_ELEMENT_ERROR (src, CORE, NEGOTIATION, (NULL),
700 (_("format wasn't negotiated before get function")));
701 return GST_FLOW_NOT_NEGOTIATED;
705 GST_DEBUG_OBJECT (src, "eos: 0 framerate, frame %d", (gint) src->n_frames);
711 gst_gl_test_src_start (GstBaseSrc * basesrc)
713 GstGLTestSrc *src = GST_GL_TEST_SRC (basesrc);
715 if (!gst_gl_ensure_display (src, &src->display))
718 src->running_time = 0;
720 src->negotiated = FALSE;
726 gst_gl_test_src_stop (GstBaseSrc * basesrc)
728 GstGLTestSrc *src = GST_GL_TEST_SRC (basesrc);
730 gst_caps_replace (&src->out_caps, NULL);
734 gst_object_unref (src->shader);
738 if (src->out_tex_id) {
739 gst_gl_context_del_texture (src->context, &src->out_tex_id);
743 gst_object_unref (src->download);
744 src->download = NULL;
746 //blocking call, delete the FBO
747 gst_gl_context_del_fbo (src->context, src->fbo, src->depthbuffer);
748 gst_object_unref (src->context);
753 gst_object_unref (src->display);
761 gst_gl_test_src_decide_allocation (GstBaseSrc * basesrc, GstQuery * query)
763 GstGLTestSrc *src = GST_GL_TEST_SRC (basesrc);
764 GstBufferPool *pool = NULL;
765 GstStructure *config;
767 guint min, max, size;
768 gboolean update_pool;
769 GError *error = NULL;
771 guint out_width, out_height;
772 GstGLContext *other_context = NULL;
774 if (!gst_gl_ensure_display (src, &src->display))
777 if (gst_query_find_allocation_meta (query,
778 GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, &idx)) {
779 GstGLContext *context;
780 const GstStructure *upload_meta_params;
785 gst_query_parse_nth_allocation_meta (query, idx, &upload_meta_params);
786 if (upload_meta_params) {
787 if (gst_structure_get (upload_meta_params, "gst.gl.GstGLContext",
788 GST_GL_TYPE_CONTEXT, &context, NULL) && context) {
789 GstGLContext *old = src->context;
791 src->context = context;
793 gst_object_unref (old);
794 } else if (gst_structure_get (upload_meta_params, "gst.gl.context.handle",
795 G_TYPE_POINTER, &handle, "gst.gl.context.type", G_TYPE_STRING,
796 &type, "gst.gl.context.apis", G_TYPE_STRING, &apis, NULL)
798 GstGLPlatform platform = GST_GL_PLATFORM_NONE;
801 GST_DEBUG ("got GL context handle 0x%p with type %s and apis %s",
804 platform = gst_gl_platform_from_string (type);
805 gl_apis = gst_gl_api_from_string (apis);
807 if (gl_apis && platform)
809 gst_gl_context_new_wrapped (src->display, (guintptr) handle,
815 if (src->other_context) {
816 if (!other_context) {
817 other_context = src->other_context;
819 GST_ELEMENT_WARNING (src, LIBRARY, SETTINGS,
820 ("%s", "Cannot share with more than one GL context"),
821 ("%s", "Cannot share with more than one GL context"));
826 src->context = gst_gl_context_new (src->display);
827 if (!gst_gl_context_create (src->context, other_context, &error))
831 out_width = GST_VIDEO_INFO_WIDTH (&src->out_info);
832 out_height = GST_VIDEO_INFO_HEIGHT (&src->out_info);
834 if (!gst_gl_context_gen_fbo (src->context, out_width, out_height,
835 &src->fbo, &src->depthbuffer))
838 gst_query_parse_allocation (query, &caps, NULL);
840 if (gst_query_get_n_allocation_pools (query) > 0) {
841 gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
847 gst_video_info_init (&vinfo);
848 gst_video_info_from_caps (&vinfo, caps);
855 pool = gst_gl_buffer_pool_new (src->context);
857 config = gst_buffer_pool_get_config (pool);
858 gst_buffer_pool_config_set_params (config, caps, size, min, max);
859 gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
860 gst_buffer_pool_set_config (pool, config);
863 gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
865 gst_query_add_allocation_pool (query, pool, size, min, max);
867 gst_gl_test_src_init_shader (src);
869 gst_object_unref (pool);
875 GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, ("%s", error->message),
877 gst_object_unref (src->context);
885 gst_gl_test_src_callback (gpointer stuff)
887 GstGLTestSrc *src = GST_GL_TEST_SRC (stuff);
889 src->make_image (src, src->buffer, GST_VIDEO_INFO_WIDTH (&src->out_info),
890 GST_VIDEO_INFO_HEIGHT (&src->out_info));
892 gst_buffer_unref (src->buffer);