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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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[047/906] * sys/glsink/gltestsrc.c: * sys/glsink/gstglbuffer.c: * sys/glsink/gstglbuffer.h: * sys/glsink/gstgldownload.c: * sys/glsink/gstglfilter.c: * sys/glsink/gstglfilterexample.c: * sys/glsink/gstgltestsrc.c: * sys/glsink/gstglupload.c: Convert gldownload to BaseTransform. Make glfilterexample visually interesting. Add support for various formats to downloading. Fix a few places where we leak GL state to other elements (bad, but hard to prevent).
This commit is contained in:
David Schleef
Matthew Waters
parent
8abaf6f1dd
commit
87c262d1c3
8 changed files with 231 additions and 122 deletions
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@ -90,6 +90,9 @@ gst_gl_buffer_new (GstGLDisplay * display, GstGLBufferFormat format,
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buffer->display = g_object_ref (display);
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buffer->width = width;
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buffer->height = height;
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/* this is not strictly true, but it's used for compatibility with
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* queue and BaseTransform */
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GST_BUFFER_SIZE (buffer) = width * height * 4;
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gst_gl_display_lock (buffer->display);
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glGenTextures (1, &buffer->texture);
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@ -129,6 +132,9 @@ gst_gl_buffer_new_from_data (GstGLDisplay * display, GstVideoFormat format,
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buffer->display = g_object_ref (display);
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buffer->width = width;
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buffer->height = height;
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/* this is not strictly true, but it's used for compatibility with
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* queue and BaseTransform */
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GST_BUFFER_SIZE (buffer) = width * height * 4;
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gst_gl_display_lock (buffer->display);
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glGenTextures (1, &buffer->texture);
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@ -234,7 +240,7 @@ gst_gl_buffer_new_from_data (GstGLDisplay * display, GstVideoFormat format,
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void
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gst_gl_buffer_download (GstGLBuffer * buffer, void *data)
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gst_gl_buffer_download (GstGLBuffer * buffer, GstVideoFormat format, void *data)
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{
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GLuint fbo;
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@ -254,15 +260,33 @@ gst_gl_buffer_download (GstGLBuffer * buffer, void *data)
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g_assert (glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT) ==
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GL_FRAMEBUFFER_COMPLETE_EXT);
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/* needs a reset function */
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/* we need a reset function */
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glMatrixMode (GL_COLOR);
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glLoadIdentity ();
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glPixelTransferf (GL_POST_COLOR_MATRIX_RED_BIAS, 0);
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glPixelTransferf (GL_POST_COLOR_MATRIX_GREEN_BIAS, 0);
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glPixelTransferf (GL_POST_COLOR_MATRIX_BLUE_BIAS, 0);
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glReadPixels (0, 0, buffer->width, buffer->height, GL_RGBA,
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GL_UNSIGNED_BYTE, data);
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switch (format) {
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case GST_VIDEO_FORMAT_RGBx:
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glReadPixels (0, 0, buffer->width, buffer->height, GL_RGBA,
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GL_UNSIGNED_BYTE, data);
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break;
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case GST_VIDEO_FORMAT_BGRx:
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glReadPixels (0, 0, buffer->width, buffer->height, GL_BGRA,
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GL_UNSIGNED_BYTE, data);
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break;
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case GST_VIDEO_FORMAT_xBGR:
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glReadPixels (0, 0, buffer->width, buffer->height, GL_RGBA,
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GL_UNSIGNED_INT_8_8_8_8, data);
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break;
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case GST_VIDEO_FORMAT_xRGB:
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glReadPixels (0, 0, buffer->width, buffer->height, GL_BGRA,
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GL_UNSIGNED_INT_8_8_8_8, data);
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break;
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default:
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g_assert_not_reached ();
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}
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glDeleteFramebuffersEXT (1, &fbo);
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@ -44,7 +44,18 @@ GstGLBuffer * gst_gl_buffer_new (GstGLDisplay *display,
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GstGLBufferFormat format, int width, int height);
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GstGLBuffer * gst_gl_buffer_new_from_data (GstGLDisplay *display,
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GstVideoFormat format, int width, int height, void *data);
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void gst_gl_buffer_download (GstGLBuffer *buffer, void *data);
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void gst_gl_buffer_download (GstGLBuffer *buffer, GstVideoFormat format,
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void *data);
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#define GST_GL_VIDEO_CAPS \
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"video/x-raw-gl," \
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"format=(int)[0,10]," \
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"width=(int)[1,2048]," \
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"height=(int)[1,2048]," \
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"pixel-aspect-ratio=(fraction)1/1," \
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"framerate=(fraction)[0/1,100/1]"
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#endif
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@ -91,6 +91,9 @@ gst_gl_test_src_smpte (GstGLTestSrc * v, GstGLBuffer * buffer, int w, int h)
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glClearColor (0.0, 0.0, 0.0, 1.0);
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glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glDisable (GL_CULL_FACE);
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glDisable (GL_TEXTURE_RECTANGLE_ARB);
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glMatrixMode (GL_PROJECTION);
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glLoadIdentity ();
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@ -23,6 +23,7 @@
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#endif
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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#include <gst/video/video.h>
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#include <gstglbuffer.h>
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@ -42,10 +43,7 @@ typedef void (*GstGLDownloadProcessFunc) (GstGLDownload *, guint8 *, guint);
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struct _GstGLDownload
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{
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GstElement element;
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GstPad *srcpad;
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GstPad *sinkpad;
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GstBaseTransform base_transform;
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/* < private > */
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@ -57,7 +55,7 @@ struct _GstGLDownload
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struct _GstGLDownloadClass
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{
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GstElementClass element_class;
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GstBaseTransformClass base_transform_class;
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};
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static const GstElementDetails element_details = GST_ELEMENT_DETAILS ("FIXME",
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@ -65,13 +63,12 @@ static const GstElementDetails element_details = GST_ELEMENT_DETAILS ("FIXME",
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"FIXME example filter",
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"FIXME <fixme@fixme.com>");
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#define GST_GL_VIDEO_CAPS "video/x-raw-gl"
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static GstStaticPadTemplate gst_gl_download_src_pad_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_RGBx)
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GST_STATIC_CAPS (GST_VIDEO_CAPS_xRGB ";"
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GST_VIDEO_CAPS_RGBx ";" GST_VIDEO_CAPS_BGRx ";" GST_VIDEO_CAPS_xBGR)
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);
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static GstStaticPadTemplate gst_gl_download_sink_pad_template =
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@ -89,19 +86,26 @@ enum
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#define DEBUG_INIT(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_gl_download_debug, "gldownload", 0, "gldownload element");
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GST_BOILERPLATE_FULL (GstGLDownload, gst_gl_download, GstElement,
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GST_TYPE_ELEMENT, DEBUG_INIT);
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GST_BOILERPLATE_FULL (GstGLDownload, gst_gl_download, GstBaseTransform,
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GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
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static void gst_gl_download_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_gl_download_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstFlowReturn gst_gl_download_chain (GstPad * pad, GstBuffer * buf);
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static void gst_gl_download_reset (GstGLDownload * download);
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static GstStateChangeReturn
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gst_gl_download_change_state (GstElement * element, GstStateChange transition);
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static gboolean gst_gl_download_sink_setcaps (GstPad * pad, GstCaps * caps);
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static gboolean gst_gl_download_set_caps (GstBaseTransform * bt,
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GstCaps * incaps, GstCaps * outcaps);
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static GstCaps *gst_gl_download_transform_caps (GstBaseTransform * bt,
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GstPadDirection direction, GstCaps * caps);
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static gboolean gst_gl_download_start (GstBaseTransform * bt);
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static gboolean gst_gl_download_stop (GstBaseTransform * bt);
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static GstFlowReturn gst_gl_download_transform (GstBaseTransform * trans,
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GstBuffer * inbuf, GstBuffer * outbuf);
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static gboolean
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gst_gl_download_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
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guint * size);
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static void
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@ -126,22 +130,19 @@ gst_gl_download_class_init (GstGLDownloadClass * klass)
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gobject_class->set_property = gst_gl_download_set_property;
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gobject_class->get_property = gst_gl_download_get_property;
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GST_ELEMENT_CLASS (klass)->change_state = gst_gl_download_change_state;
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GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
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gst_gl_download_transform_caps;
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GST_BASE_TRANSFORM_CLASS (klass)->transform = gst_gl_download_transform;
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GST_BASE_TRANSFORM_CLASS (klass)->start = gst_gl_download_start;
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GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_download_stop;
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GST_BASE_TRANSFORM_CLASS (klass)->set_caps = gst_gl_download_set_caps;
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GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size =
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gst_gl_download_get_unit_size;
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}
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static void
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gst_gl_download_init (GstGLDownload * download, GstGLDownloadClass * klass)
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{
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gst_element_create_all_pads (GST_ELEMENT (download));
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download->sinkpad =
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gst_element_get_static_pad (GST_ELEMENT (download), "sink");
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download->srcpad = gst_element_get_static_pad (GST_ELEMENT (download), "src");
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gst_pad_set_setcaps_function (download->sinkpad,
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gst_gl_download_sink_setcaps);
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gst_pad_set_chain_function (download->sinkpad, gst_gl_download_chain);
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gst_gl_download_reset (download);
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}
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@ -182,116 +183,138 @@ gst_gl_download_reset (GstGLDownload * download)
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}
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static gboolean
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gst_gl_download_start (GstGLDownload * download)
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gst_gl_download_start (GstBaseTransform * bt)
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{
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GstGLDownload *download = GST_GL_DOWNLOAD (bt);
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download->format = GST_VIDEO_FORMAT_RGBx;
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return TRUE;
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}
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static gboolean
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gst_gl_download_stop (GstGLDownload * download)
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gst_gl_download_stop (GstBaseTransform * bt)
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{
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GstGLDownload *download = GST_GL_DOWNLOAD (bt);
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gst_gl_download_reset (download);
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return TRUE;
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}
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static gboolean
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gst_gl_download_sink_setcaps (GstPad * pad, GstCaps * caps)
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static GstCaps *
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gst_gl_download_transform_caps (GstBaseTransform * bt,
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GstPadDirection direction, GstCaps * caps)
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{
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GstGLDownload *download;
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gboolean ret;
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GstStructure *structure;
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GstCaps *srccaps;
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GstCaps *newcaps;
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GstStructure *newstruct;
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const GValue *width_value;
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const GValue *height_value;
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const GValue *framerate_value;
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const GValue *par_value;
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download = GST_GL_DOWNLOAD (gst_pad_get_parent (pad));
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GST_DEBUG ("called with %" GST_PTR_FORMAT, caps);
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download = GST_GL_DOWNLOAD (bt);
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structure = gst_caps_get_structure (caps, 0);
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ret = gst_structure_get_int (structure, "width", &download->width);
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ret &= gst_structure_get_int (structure, "height", &download->height);
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width_value = gst_structure_get_value (structure, "width");
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height_value = gst_structure_get_value (structure, "height");
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framerate_value = gst_structure_get_value (structure, "framerate");
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par_value = gst_structure_get_value (structure, "pixel-aspect-ratio");
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if (direction == GST_PAD_SINK) {
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newcaps = gst_caps_new_simple ("video/x-raw-rgb", NULL);
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} else {
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newcaps = gst_caps_new_simple ("video/x-raw-gl", NULL);
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}
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newstruct = gst_caps_get_structure (newcaps, 0);
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gst_structure_set_value (newstruct, "width", width_value);
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gst_structure_set_value (newstruct, "height", height_value);
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gst_structure_set_value (newstruct, "framerate", framerate_value);
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if (par_value) {
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gst_structure_set_value (newstruct, "pixel-aspect-ratio", par_value);
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} else {
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gst_structure_set (newstruct, "pixel-aspect-ratio", GST_TYPE_FRACTION,
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1, 1, NULL);
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}
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return newcaps;
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}
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static gboolean
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gst_gl_download_set_caps (GstBaseTransform * bt, GstCaps * incaps,
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GstCaps * outcaps)
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{
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GstGLDownload *download;
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gboolean ret;
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download = GST_GL_DOWNLOAD (bt);
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GST_DEBUG ("called with %" GST_PTR_FORMAT, incaps);
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ret = gst_video_format_parse_caps (outcaps, &download->format,
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&download->width, &download->height);
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if (!ret) {
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GST_DEBUG ("bad caps");
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return FALSE;
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}
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srccaps = gst_video_format_new_caps (download->format,
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download->width, download->height, 30, 1, 1, 1);
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GST_DEBUG ("srccaps %" GST_PTR_FORMAT, srccaps);
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ret = gst_pad_set_caps (download->srcpad, srccaps);
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gst_caps_unref (srccaps);
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return ret;
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}
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static gboolean
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gst_gl_download_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
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guint * size)
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{
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gboolean ret;
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GstStructure *structure;
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structure = gst_caps_get_structure (caps, 0);
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if (gst_structure_has_name (structure, "video/x-raw-gl")) {
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int width;
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int height;
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ret = gst_structure_get_int (structure, "width", &width);
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ret &= gst_structure_get_int (structure, "height", &height);
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/* FIXME */
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*size = width * height * 4;
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} else {
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int width;
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int height;
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ret = gst_structure_get_int (structure, "width", &width);
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ret &= gst_structure_get_int (structure, "height", &height);
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/* FIXME */
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*size = width * height * 4;
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}
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return TRUE;
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}
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static GstFlowReturn
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gst_gl_download_chain (GstPad * pad, GstBuffer * buf)
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gst_gl_download_transform (GstBaseTransform * trans, GstBuffer * inbuf,
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GstBuffer * outbuf)
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{
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GstGLDownload *download;
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GstGLBuffer *inbuf = GST_GL_BUFFER (buf);
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GstBuffer *outbuf;
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GstGLBuffer *gl_inbuf = GST_GL_BUFFER (inbuf);
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download = GST_GL_DOWNLOAD (gst_pad_get_parent (pad));
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download = GST_GL_DOWNLOAD (trans);
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outbuf =
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gst_buffer_new_and_alloc (gst_video_format_get_size (download->format,
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inbuf->width, inbuf->height));
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gst_buffer_copy_metadata (GST_BUFFER (outbuf), buf,
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GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS);
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gst_buffer_set_caps (GST_BUFFER (outbuf), GST_PAD_CAPS (download->srcpad));
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if (download->display == NULL) {
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download->display = g_object_ref (gl_inbuf->display);
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} else {
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g_assert (download->display == gl_inbuf->display);
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}
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GST_DEBUG ("downloading %p size %d",
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GST_BUFFER_DATA (outbuf), GST_BUFFER_SIZE (outbuf));
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gst_gl_buffer_download (inbuf, GST_BUFFER_DATA (outbuf));
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gst_gl_buffer_download (gl_inbuf, download->format, GST_BUFFER_DATA (outbuf));
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gst_pad_push (download->srcpad, GST_BUFFER (outbuf));
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gst_buffer_unref (buf);
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gst_object_unref (download);
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return GST_FLOW_OK;
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}
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static GstStateChangeReturn
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gst_gl_download_change_state (GstElement * element, GstStateChange transition)
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{
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GstGLDownload *download;
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GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
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GST_DEBUG ("change state");
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download = GST_GL_DOWNLOAD (element);
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switch (transition) {
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case GST_STATE_CHANGE_NULL_TO_READY:
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break;
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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gst_gl_download_start (download);
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break;
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case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
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break;
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default:
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break;
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}
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ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
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if (ret == GST_STATE_CHANGE_FAILURE)
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return ret;
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switch (transition) {
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case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
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break;
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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gst_gl_download_stop (download);
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break;
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case GST_STATE_CHANGE_READY_TO_NULL:
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break;
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default:
|
||||
break;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -32,8 +32,6 @@
|
|||
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
|
||||
|
||||
|
||||
#define GST_GL_VIDEO_CAPS "video/x-raw-gl"
|
||||
|
||||
static GstStaticPadTemplate gst_gl_filter_src_pad_template =
|
||||
GST_STATIC_PAD_TEMPLATE ("src",
|
||||
GST_PAD_SRC,
|
||||
|
|
|
|||
|
|
@ -190,6 +190,8 @@ gst_gl_filter_example_transform (GstGLFilter * filter, GstGLBuffer * outbuf,
|
|||
GstGLBuffer * inbuf)
|
||||
{
|
||||
//GstGLFilterExample *example = GST_GL_FILTER_EXAMPLE(filter);
|
||||
int i, j;
|
||||
double *vertex_x, *vertex_y;
|
||||
|
||||
glDisable (GL_CULL_FACE);
|
||||
glEnableClientState (GL_TEXTURE_COORD_ARRAY);
|
||||
|
|
@ -203,6 +205,8 @@ gst_gl_filter_example_transform (GstGLFilter * filter, GstGLBuffer * outbuf,
|
|||
glColor4f (1, 0, 1, 1);
|
||||
|
||||
#define GAIN 0.5
|
||||
/* just for fun. swap red and blue components. Doesn't work on my
|
||||
* driver. */
|
||||
{
|
||||
const double matrix[16] = {
|
||||
0, 0, 1.0, 0,
|
||||
|
|
@ -218,20 +222,70 @@ gst_gl_filter_example_transform (GstGLFilter * filter, GstGLBuffer * outbuf,
|
|||
glPixelTransferf (GL_POST_COLOR_MATRIX_BLUE_BIAS, (1 - GAIN) / 2);
|
||||
}
|
||||
|
||||
glBegin (GL_QUADS);
|
||||
glNormal3f (0, 0, -1);
|
||||
glTexCoord2f (inbuf->width, 0);
|
||||
glVertex3f (0.9, -0.9, 0);
|
||||
glTexCoord2f (0, 0);
|
||||
glVertex3f (-1.0, -1.0, 0);
|
||||
glTexCoord2f (0, inbuf->height);
|
||||
glVertex3f (-1.0, 1.0, 0);
|
||||
glTexCoord2f (inbuf->width, inbuf->height);
|
||||
glVertex3f (1.0, 1.0, 0);
|
||||
glEnd ();
|
||||
/* load raster-scanning matrix */
|
||||
{
|
||||
const double matrix[16] = {
|
||||
2.0, 0, 0, 0,
|
||||
0, 2.0, 0, 0,
|
||||
0, 0, 1, 0,
|
||||
-1, -1, 0, 1
|
||||
};
|
||||
glMatrixMode (GL_MODELVIEW);
|
||||
glLoadMatrixd (matrix);
|
||||
}
|
||||
/* load texture raster-scanning matrix */
|
||||
{
|
||||
double matrix[16] = {
|
||||
1.0, 0, 0, 0,
|
||||
0, 1.0, 0, 0,
|
||||
0, 0, 1, 0,
|
||||
-1, -1, 0, 1
|
||||
};
|
||||
matrix[0] = inbuf->width;
|
||||
matrix[5] = inbuf->height;
|
||||
glMatrixMode (GL_TEXTURE);
|
||||
glLoadMatrixd (matrix);
|
||||
}
|
||||
|
||||
#define N 10
|
||||
#define SCALE (1.0/N)
|
||||
#define NOISE() (0.1*SCALE*g_random_double_range(-1,1))
|
||||
vertex_x = malloc (sizeof (double) * (N + 1) * (N + 1));
|
||||
vertex_y = malloc (sizeof (double) * (N + 1) * (N + 1));
|
||||
for (j = 0; j < N + 1; j++) {
|
||||
for (i = 0; i < N + 1; i++) {
|
||||
vertex_x[j * (N + 1) + i] = i * SCALE + NOISE ();
|
||||
vertex_y[j * (N + 1) + i] = j * SCALE + NOISE ();
|
||||
}
|
||||
}
|
||||
for (j = 0; j < N; j++) {
|
||||
for (i = 0; i < N; i++) {
|
||||
glBegin (GL_QUADS);
|
||||
glNormal3f (0, 0, -1);
|
||||
glTexCoord2f (i * SCALE, j * SCALE);
|
||||
glVertex3f (vertex_x[j * (N + 1) + i], vertex_y[j * (N + 1) + i], 0);
|
||||
glTexCoord2f ((i + 1) * SCALE, j * SCALE);
|
||||
glVertex3f (vertex_x[j * (N + 1) + (i + 1)],
|
||||
vertex_y[j * (N + 1) + (i + 1)], 0);
|
||||
glTexCoord2f ((i + 1) * SCALE, (j + 1) * SCALE);
|
||||
glVertex3f (vertex_x[(j + 1) * (N + 1) + (i + 1)],
|
||||
vertex_y[(j + 1) * (N + 1) + (i + 1)], 0);
|
||||
glTexCoord2f (i * SCALE, (j + 1) * SCALE);
|
||||
glVertex3f (vertex_x[(j + 1) * (N + 1) + i],
|
||||
vertex_y[(j + 1) * (N + 1) + i], 0);
|
||||
glEnd ();
|
||||
}
|
||||
}
|
||||
free (vertex_x);
|
||||
free (vertex_y);
|
||||
|
||||
|
||||
glFlush ();
|
||||
|
||||
glMatrixMode (GL_MODELVIEW);
|
||||
glLoadIdentity ();
|
||||
glMatrixMode (GL_TEXTURE);
|
||||
glLoadIdentity ();
|
||||
glMatrixMode (GL_COLOR);
|
||||
glLoadIdentity ();
|
||||
glPixelTransferf (GL_POST_COLOR_MATRIX_RED_SCALE, 1.0);
|
||||
|
|
|
|||
|
|
@ -53,8 +53,6 @@
|
|||
GST_DEBUG_CATEGORY_STATIC (gl_test_src_debug);
|
||||
#define GST_CAT_DEFAULT gl_test_src_debug
|
||||
|
||||
#define GST_GL_VIDEO_CAPS "video/x-raw-gl,width=(int)[1,2048],height=(int)[1,2048],framerate=(fraction)[0/1,100/1],pixel_aspect_ratio=(fraction)[0/1,100/1]"
|
||||
|
||||
static const GstElementDetails gl_test_src_details =
|
||||
GST_ELEMENT_DETAILS ("Video test source",
|
||||
"Source/Video",
|
||||
|
|
|
|||
|
|
@ -68,8 +68,6 @@ static const GstElementDetails element_details = GST_ELEMENT_DETAILS ("FIXME",
|
|||
"FIXME example filter",
|
||||
"FIXME <fixme@fixme.com>");
|
||||
|
||||
#define GST_GL_VIDEO_CAPS "video/x-raw-gl"
|
||||
|
||||
static GstStaticPadTemplate gst_gl_upload_src_pad_template =
|
||||
GST_STATIC_PAD_TEMPLATE ("src",
|
||||
GST_PAD_SRC,
|
||||
|
|
|
|||
Loading…
Reference in a new issue