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gstreamer/ext/eglgles/gsteglglessink.c

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/*
* GStreamer EGL/GLES Sink
* Copyright (C) 2012 Collabora Ltd.
* @author: Reynaldo H. Verdejo Pinochet <reynaldo@collabora.com>
* @author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-eglglessink
*
* EglGlesSink renders video frames on a EGL surface it sets up
* from a window it either creates (on X11) or gets a handle to
* through it's xOverlay interface. All the display/surface logic
* in this sink uses EGL to interact with the native window system.
* The rendering logic, in turn, uses OpenGL ES v2.
*
* This sink has been tested to work on X11/Mesa and on Android
* (From Gingerbread on to Jelly Bean) and while it's currently
* using an slow copy-over rendering path it has proven to be fast
* enough on the devices we have tried it on.
*
* <refsect2>
* <title>Supported EGL/OpenGL ES versions</title>
* <para>
* This Sink uses EGLv1 and GLESv2
* </para>
* </refsect2>
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch -v -m videotestsrc ! eglglessink
* ]|
* </refsect2>
*
* <refsect2>
* <title>Example launch line with internal window creation disabled</title>
* <para>
* By setting the can_create_window property to FALSE you can force the
* sink to wait for a window handle through it's xOverlay interface even
* if internal window creation is supported by the platform. Window creation
* is only supported in X11 right now but it should be trivial to add support
* for different platforms.
* </para>
* |[
* gst-launch -v -m videotestsrc ! eglglessink can_create_window=FALSE
* ]|
* </refsect2>
*
* <refsect2>
* <title>Scaling</title>
* <para>
* The sink will try it's best to consider the incoming frame's and display's
* pixel aspect ratio and fill the corresponding surface without altering the
* decoded frame's geometry when scaling. You can disable this logic by setting
* the force_aspect_ratio property to FALSE, in which case the sink will just
* fill the entire surface it has access to regardles of the PAR/DAR relationship.
* </para>
* <para>
* Querying the display aspect ratio is only supported with EGL versions >= 1.2.
* The sink will just assume the DAR to be 1/1 if it can't get access to this
* information.
* </para>
* <para>
* Here is an example launch line with the PAR/DAR aware scaling disabled:
* </para>
* |[
* gst-launch -v -m videotestsrc ! eglglessink force_aspect_ratio=FALSE
* ]|
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define EGL_EGLEXT_PROTOTYPES
#define GL_GLEXT_PROTOTYPES
#include <string.h>
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/video-frame.h>
#include <gst/video/gstvideosink.h>
#include <gst/video/gstvideometa.h>
#include <gst/video/gstvideopool.h>
#include <gst/video/videooverlay.h>
#include <gst/egl/egl.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#ifdef USE_EGL_RPI
#include <bcm_host.h>
#endif
#include "video_platform_wrapper.h"
#include "gsteglglessink.h"
/* Some EGL implementations are reporting wrong
* values for the display's EGL_PIXEL_ASPECT_RATIO.
* They are required by the khronos specs to report
* this value as w/h * EGL_DISPLAY_SCALING (Which is
* a constant with value 10000) but at least the
* Galaxy SIII (Android) is reporting just 1 when
* w = h. We use these two to bound returned values to
* sanity.
*/
#define EGL_SANE_DAR_MIN ((EGL_DISPLAY_SCALING)/10)
#define EGL_SANE_DAR_MAX ((EGL_DISPLAY_SCALING)*10)
GST_DEBUG_CATEGORY_STATIC (gst_eglglessink_debug);
#define GST_CAT_DEFAULT gst_eglglessink_debug
GST_DEBUG_CATEGORY_EXTERN (GST_CAT_PERFORMANCE);
/* GLESv2 GLSL Shaders
*
* OpenGL ES Standard does not mandate YUV support. This is
* why most of these shaders deal with Packed/Planar YUV->RGB
* conversion.
*/
/* *INDENT-OFF* */
/* Direct vertex copy */
static const char *vert_COPY_prog = {
"attribute vec3 position;"
"attribute vec2 texpos;"
"varying vec2 opos;"
"void main(void)"
"{"
" opos = texpos;"
" gl_Position = vec4(position, 1.0);"
"}"
};
static const char *vert_COPY_prog_no_tex = {
"attribute vec3 position;"
"void main(void)"
"{"
" gl_Position = vec4(position, 1.0);"
"}"
};
/* Paint all black */
static const char *frag_BLACK_prog = {
"precision mediump float;"
"void main(void)"
"{"
" gl_FragColor = vec4(0.0, 0.0, 0.0, 1.0);"
"}"
};
/* Direct fragments copy with stride-scaling */
static const char *frag_COPY_prog = {
"precision mediump float;"
"varying vec2 opos;"
"uniform sampler2D tex;"
"uniform vec2 tex_scale0;"
"uniform vec2 tex_scale1;"
"uniform vec2 tex_scale2;"
"void main(void)"
"{"
" vec4 t = texture2D(tex, opos / tex_scale0);"
" gl_FragColor = vec4(t.rgb, 1.0);"
"}"
};
/* Direct fragments copy without stride-scaling */
static const char *frag_COPY_DIRECT_prog = {
"precision mediump float;"
"varying vec2 opos;"
"uniform sampler2D tex;"
"void main(void)"
"{"
" vec4 t = texture2D(tex, opos);"
" gl_FragColor = vec4(t.rgb, 1.0);"
"}"
};
/* Channel reordering for XYZ <-> ZYX conversion */
static const char *frag_REORDER_prog = {
"precision mediump float;"
"varying vec2 opos;"
"uniform sampler2D tex;"
"uniform vec2 tex_scale0;"
"uniform vec2 tex_scale1;"
"uniform vec2 tex_scale2;"
"void main(void)"
"{"
" vec4 t = texture2D(tex, opos / tex_scale0);"
" gl_FragColor = vec4(t.%c, t.%c, t.%c, 1.0);"
"}"
};
/* Packed YUV converters */
/** AYUV to RGB conversion */
static const char *frag_AYUV_prog = {
"precision mediump float;"
"varying vec2 opos;"
"uniform sampler2D tex;"
"uniform vec2 tex_scale0;"
"uniform vec2 tex_scale1;"
"uniform vec2 tex_scale2;"
"const vec3 offset = vec3(-0.0625, -0.5, -0.5);"
"const vec3 rcoeff = vec3(1.164, 0.000, 1.596);"
"const vec3 gcoeff = vec3(1.164,-0.391,-0.813);"
"const vec3 bcoeff = vec3(1.164, 2.018, 0.000);"
"void main(void) {"
" float r,g,b;"
" vec3 yuv;"
" yuv = texture2D(tex,opos / tex_scale0).gba;"
" yuv += offset;"
" r = dot(yuv, rcoeff);"
" g = dot(yuv, gcoeff);"
" b = dot(yuv, bcoeff);"
" gl_FragColor=vec4(r,g,b,1.0);"
"}"
};
/* Planar YUV converters */
/** YUV to RGB conversion */
static const char *frag_PLANAR_YUV_prog = {
"precision mediump float;"
"varying vec2 opos;"
"uniform sampler2D Ytex,Utex,Vtex;"
"uniform vec2 tex_scale0;"
"uniform vec2 tex_scale1;"
"uniform vec2 tex_scale2;"
"const vec3 offset = vec3(-0.0625, -0.5, -0.5);"
"const vec3 rcoeff = vec3(1.164, 0.000, 1.596);"
"const vec3 gcoeff = vec3(1.164,-0.391,-0.813);"
"const vec3 bcoeff = vec3(1.164, 2.018, 0.000);"
"void main(void) {"
" float r,g,b;"
" vec3 yuv;"
" yuv.x=texture2D(Ytex,opos / tex_scale0).r;"
" yuv.y=texture2D(Utex,opos / tex_scale1).r;"
" yuv.z=texture2D(Vtex,opos / tex_scale2).r;"
" yuv += offset;"
" r = dot(yuv, rcoeff);"
" g = dot(yuv, gcoeff);"
" b = dot(yuv, bcoeff);"
" gl_FragColor=vec4(r,g,b,1.0);"
"}"
};
/** NV12/NV21 to RGB conversion */
static const char *frag_NV12_NV21_prog = {
"precision mediump float;"
"varying vec2 opos;"
"uniform sampler2D Ytex,UVtex;"
"uniform vec2 tex_scale0;"
"uniform vec2 tex_scale1;"
"uniform vec2 tex_scale2;"
"const vec3 offset = vec3(-0.0625, -0.5, -0.5);"
"const vec3 rcoeff = vec3(1.164, 0.000, 1.596);"
"const vec3 gcoeff = vec3(1.164,-0.391,-0.813);"
"const vec3 bcoeff = vec3(1.164, 2.018, 0.000);"
"void main(void) {"
" float r,g,b;"
" vec3 yuv;"
" yuv.x=texture2D(Ytex,opos / tex_scale0).r;"
" yuv.yz=texture2D(UVtex,opos / tex_scale1).%c%c;"
" yuv += offset;"
" r = dot(yuv, rcoeff);"
" g = dot(yuv, gcoeff);"
" b = dot(yuv, bcoeff);"
" gl_FragColor=vec4(r,g,b,1.0);"
"}"
};
/* *INDENT-ON* */
static const EGLint eglglessink_RGBA8888_attribs[] = {
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_ALPHA_SIZE, 8,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_NONE
};
/* Input capabilities. */
static GstStaticPadTemplate gst_eglglessink_sink_template_factory =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_EGL_IMAGE,
"{ "
"RGBA, BGRA, ARGB, ABGR, "
"RGBx, BGRx, xRGB, xBGR, "
"AYUV, Y444, I420, YV12, "
"NV12, NV21, Y42B, Y41B, " "RGB, BGR, RGB16 }") ";"
GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META,
"{ "
"RGBA, BGRA, ARGB, ABGR, "
"RGBx, BGRx, xRGB, xBGR, "
"AYUV, Y444, I420, YV12, "
"NV12, NV21, Y42B, Y41B, " "RGB, BGR, RGB16 }") ";"
GST_VIDEO_CAPS_MAKE ("{ "
"RGBA, BGRA, ARGB, ABGR, "
"RGBx, BGRx, xRGB, xBGR, "
"AYUV, Y444, I420, YV12, "
"NV12, NV21, Y42B, Y41B, " "RGB, BGR, RGB16 }")));
/* Filter signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_CREATE_WINDOW,
PROP_FORCE_ASPECT_RATIO,
};
static void gst_eglglessink_finalize (GObject * object);
static void gst_eglglessink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_eglglessink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_eglglessink_change_state (GstElement * element,
GstStateChange transition);
static void gst_eglglessink_set_context (GstElement * element,
GstContext * context);
static GstFlowReturn gst_eglglessink_prepare (GstBaseSink * bsink,
GstBuffer * buf);
static GstFlowReturn gst_eglglessink_show_frame (GstVideoSink * vsink,
GstBuffer * buf);
static gboolean gst_eglglessink_setcaps (GstBaseSink * bsink, GstCaps * caps);
static GstCaps *gst_eglglessink_getcaps (GstBaseSink * bsink, GstCaps * filter);
static gboolean gst_eglglessink_propose_allocation (GstBaseSink * bsink,
GstQuery * query);
static gboolean gst_eglglessink_query (GstBaseSink * bsink, GstQuery * query);
static gboolean gst_eglglessink_event (GstBaseSink * bsink, GstEvent * event);
/* VideoOverlay interface cruft */
static void gst_eglglessink_videooverlay_init (GstVideoOverlayInterface *
iface);
/* Actual VideoOverlay interface funcs */
static void gst_eglglessink_expose (GstVideoOverlay * overlay);
static void gst_eglglessink_set_window_handle (GstVideoOverlay * overlay,
guintptr id);
static void gst_eglglessink_set_render_rectangle (GstVideoOverlay * overlay,
gint x, gint y, gint width, gint height);
/* Utility */
static EGLNativeWindowType gst_eglglessink_create_window (GstEglGlesSink *
eglglessink, gint width, gint height);
static gboolean gst_eglglessink_fill_supported_fbuffer_configs (GstEglGlesSink *
eglglessink);
static gboolean gst_eglglessink_init_egl_display (GstEglGlesSink * eglglessink);
static gboolean gst_eglglessink_choose_config (GstEglGlesSink * eglglessink);
static gboolean gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink);
static void gst_eglglessink_init_egl_exts (GstEglGlesSink * eglglessink);
static gboolean gst_eglglessink_setup_vbo (GstEglGlesSink * eglglessink,
gboolean reset);
static gboolean
gst_eglglessink_configure_caps (GstEglGlesSink * eglglessink, GstCaps * caps);
static GstFlowReturn gst_eglglessink_upload (GstEglGlesSink * sink,
GstBuffer * buf);
static GstFlowReturn gst_eglglessink_render (GstEglGlesSink * sink);
static GstFlowReturn gst_eglglessink_queue_object (GstEglGlesSink * sink,
GstMiniObject * obj);
static inline gboolean got_gl_error (const char *wtf);
static inline gboolean got_egl_error (const char *wtf);
static inline gboolean egl_init (GstEglGlesSink * eglglessink);
static gboolean gst_eglglessink_context_make_current (GstEglGlesSink *
eglglessink, gboolean bind);
static void gst_eglglessink_wipe_eglglesctx (GstEglGlesSink * eglglessink);
static GstBuffer *gst_eglglessink_allocate_eglimage (GstEglGlesSink *
eglglessink, GstVideoFormat format, gint width, gint height);
static GstBufferPool *gst_egl_image_buffer_pool_new (GstEglGlesSink *
eglglessink, GstEGLDisplay * display);
#define parent_class gst_eglglessink_parent_class
G_DEFINE_TYPE_WITH_CODE (GstEglGlesSink, gst_eglglessink, GST_TYPE_VIDEO_SINK,
G_IMPLEMENT_INTERFACE (GST_TYPE_VIDEO_OVERLAY,
gst_eglglessink_videooverlay_init));
static GstCaps *
_gst_video_format_new_template_caps (GstVideoFormat format)
{
return gst_caps_new_simple ("video/x-raw",
"format", G_TYPE_STRING, gst_video_format_to_string (format),
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
}
static gboolean
gst_eglglessink_fill_supported_fbuffer_configs (GstEglGlesSink * eglglessink)
{
gboolean ret = FALSE;
EGLint cfg_number;
GstCaps *caps, *copy1, *copy2;
guint i, n;
GST_DEBUG_OBJECT (eglglessink,
"Building initial list of wanted eglattribs per format");
/* Init supported format/caps list */
caps = gst_caps_new_empty ();
if (eglChooseConfig (gst_egl_display_get (eglglessink->eglglesctx.display),
eglglessink_RGBA8888_attribs, NULL, 1, &cfg_number) != EGL_FALSE) {
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_RGBA));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_BGRA));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_ARGB));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_ABGR));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_RGBx));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_BGRx));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_xRGB));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_xBGR));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_AYUV));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_Y444));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_RGB));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_BGR));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_I420));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_YV12));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_NV12));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_NV21));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_Y42B));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_Y41B));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_RGB16));
copy1 = gst_caps_copy (caps);
copy2 = gst_caps_copy (caps);
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
GstCapsFeatures *features = gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_EGL_IMAGE, NULL);
gst_caps_set_features (caps, i, features);
}
n = gst_caps_get_size (copy1);
for (i = 0; i < n; i++) {
GstCapsFeatures *features = gst_caps_features_new (GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META, NULL);
gst_caps_set_features (copy1, i, features);
}
gst_caps_append (caps, copy1);
gst_caps_append (caps, copy2);
ret = TRUE;
} else {
GST_INFO_OBJECT (eglglessink,
"EGL display doesn't support RGBA8888 config");
}
GST_OBJECT_LOCK (eglglessink);
gst_caps_replace (&eglglessink->sinkcaps, caps);
GST_OBJECT_UNLOCK (eglglessink);
gst_caps_unref (caps);
return ret;
}
static inline gboolean
egl_init (GstEglGlesSink * eglglessink)
{
if (!platform_wrapper_init ()) {
GST_ERROR_OBJECT (eglglessink, "Couldn't init EGL platform wrapper");
goto HANDLE_ERROR;
}
if (!gst_eglglessink_init_egl_display (eglglessink)) {
GST_ERROR_OBJECT (eglglessink, "Couldn't init EGL display");
goto HANDLE_ERROR;
}
gst_eglglessink_init_egl_exts (eglglessink);
if (!gst_eglglessink_fill_supported_fbuffer_configs (eglglessink)) {
GST_ERROR_OBJECT (eglglessink, "Display support NONE of our configs");
goto HANDLE_ERROR;
}
eglglessink->egl_started = TRUE;
return TRUE;
HANDLE_ERROR:
GST_ERROR_OBJECT (eglglessink, "Failed to perform EGL init");
return FALSE;
}
static gpointer
render_thread_func (GstEglGlesSink * eglglessink)
{
GstMessage *message;
GValue val = { 0 };
GstDataQueueItem *item = NULL;
GstFlowReturn last_flow = GST_FLOW_OK;
g_value_init (&val, GST_TYPE_G_THREAD);
g_value_set_boxed (&val, g_thread_self ());
message = gst_message_new_stream_status (GST_OBJECT_CAST (eglglessink),
GST_STREAM_STATUS_TYPE_ENTER, GST_ELEMENT_CAST (eglglessink));
gst_message_set_stream_status_object (message, &val);
GST_DEBUG_OBJECT (eglglessink, "posting ENTER stream status");
gst_element_post_message (GST_ELEMENT_CAST (eglglessink), message);
g_value_unset (&val);
eglBindAPI (EGL_OPENGL_ES_API);
while (gst_data_queue_pop (eglglessink->queue, &item)) {
GstMiniObject *object = item->object;
GST_DEBUG_OBJECT (eglglessink, "Handling object %" GST_PTR_FORMAT, object);
if (GST_IS_CAPS (object)) {
GstCaps *caps = GST_CAPS_CAST (object);
if (caps != eglglessink->configured_caps) {
if (!gst_eglglessink_configure_caps (eglglessink, caps)) {
last_flow = GST_FLOW_NOT_NEGOTIATED;
}
}
} else if (GST_IS_QUERY (object)) {
GstQuery *query = GST_QUERY_CAST (object);
GstStructure *s = (GstStructure *) gst_query_get_structure (query);
if (gst_structure_has_name (s, "eglglessink-allocate-eglimage")) {
GstBuffer *buffer;
GstVideoFormat format;
gint width, height;
GValue v = { 0, };
if (!gst_structure_get_enum (s, "format", GST_TYPE_VIDEO_FORMAT,
(gint *) & format)
|| !gst_structure_get_int (s, "width", &width)
|| !gst_structure_get_int (s, "height", &height)) {
g_assert_not_reached ();
}
buffer =
gst_eglglessink_allocate_eglimage (eglglessink, format, width,
height);
g_value_init (&v, G_TYPE_POINTER);
g_value_set_pointer (&v, buffer);
gst_structure_set_value (s, "buffer", &v);
g_value_unset (&v);
} else {
g_assert_not_reached ();
}
last_flow = GST_FLOW_OK;
} else if (GST_IS_BUFFER (object)) {
GstBuffer *buf = GST_BUFFER_CAST (item->object);
if (eglglessink->configured_caps) {
last_flow = gst_eglglessink_upload (eglglessink, buf);
} else {
last_flow = GST_FLOW_OK;
GST_DEBUG_OBJECT (eglglessink,
"No caps configured yet, not drawing anything");
}
} else if (!object) {
if (eglglessink->configured_caps) {
last_flow = gst_eglglessink_render (eglglessink);
} else {
last_flow = GST_FLOW_OK;
GST_DEBUG_OBJECT (eglglessink,
"No caps configured yet, not drawing anything");
}
} else {
g_assert_not_reached ();
}
item->destroy (item);
g_mutex_lock (&eglglessink->render_lock);
eglglessink->last_flow = last_flow;
eglglessink->dequeued_object = object;
g_cond_broadcast (&eglglessink->render_cond);
g_mutex_unlock (&eglglessink->render_lock);
if (last_flow != GST_FLOW_OK)
break;
GST_DEBUG_OBJECT (eglglessink, "Successfully handled object");
}
if (last_flow == GST_FLOW_OK) {
g_mutex_lock (&eglglessink->render_lock);
eglglessink->last_flow = GST_FLOW_FLUSHING;
eglglessink->dequeued_object = NULL;
g_cond_broadcast (&eglglessink->render_cond);
g_mutex_unlock (&eglglessink->render_lock);
}
GST_DEBUG_OBJECT (eglglessink, "Shutting down thread");
/* EGL/GLES cleanup */
gst_eglglessink_wipe_eglglesctx (eglglessink);
if (eglglessink->configured_caps) {
gst_caps_unref (eglglessink->configured_caps);
eglglessink->configured_caps = NULL;
}
g_value_init (&val, GST_TYPE_G_THREAD);
g_value_set_boxed (&val, g_thread_self ());
message = gst_message_new_stream_status (GST_OBJECT_CAST (eglglessink),
GST_STREAM_STATUS_TYPE_LEAVE, GST_ELEMENT_CAST (eglglessink));
gst_message_set_stream_status_object (message, &val);
GST_DEBUG_OBJECT (eglglessink, "posting LEAVE stream status");
gst_element_post_message (GST_ELEMENT_CAST (eglglessink), message);
g_value_unset (&val);
return NULL;
}
static void
gst_eglglessink_wipe_eglglesctx (GstEglGlesSink * eglglessink)
{
gint i;
glUseProgram (0);
if (eglglessink->have_vbo) {
glDeleteBuffers (1, &eglglessink->eglglesctx.position_buffer);
glDeleteBuffers (1, &eglglessink->eglglesctx.index_buffer);
eglglessink->have_vbo = FALSE;
}
if (eglglessink->have_texture) {
glDeleteTextures (eglglessink->eglglesctx.n_textures + 1,
eglglessink->eglglesctx.texture);
eglglessink->have_texture = FALSE;
eglglessink->eglglesctx.n_textures = 0;
}
for (i = 0; i < 3; i++) {
if (eglglessink->eglglesctx.glslprogram[i]) {
glDetachShader (eglglessink->eglglesctx.glslprogram[i],
eglglessink->eglglesctx.fragshader[i]);
glDetachShader (eglglessink->eglglesctx.glslprogram[i],
eglglessink->eglglesctx.vertshader[i]);
glDeleteProgram (eglglessink->eglglesctx.glslprogram[i]);
glDeleteShader (eglglessink->eglglesctx.fragshader[i]);
glDeleteShader (eglglessink->eglglesctx.vertshader[i]);
eglglessink->eglglesctx.glslprogram[i] = 0;
eglglessink->eglglesctx.fragshader[i] = 0;
eglglessink->eglglesctx.vertshader[i] = 0;
}
}
gst_eglglessink_context_make_current (eglglessink, FALSE);
if (eglglessink->eglglesctx.surface) {
eglDestroySurface (gst_egl_display_get (eglglessink->eglglesctx.display),
eglglessink->eglglesctx.surface);
eglglessink->eglglesctx.surface = NULL;
eglglessink->have_surface = FALSE;
}
if (eglglessink->eglglesctx.eglcontext) {
eglDestroyContext (gst_egl_display_get (eglglessink->eglglesctx.display),
eglglessink->eglglesctx.eglcontext);
eglglessink->eglglesctx.eglcontext = NULL;
}
}
static gboolean
gst_eglglessink_start (GstEglGlesSink * eglglessink)
{
GError *error = NULL;
GST_DEBUG_OBJECT (eglglessink, "Starting");
if (!eglglessink->egl_started) {
GST_ERROR_OBJECT (eglglessink, "EGL uninitialized. Bailing out");
goto HANDLE_ERROR;
}
/* Ask for a window to render to */
if (!eglglessink->have_window)
gst_video_overlay_prepare_window_handle (GST_VIDEO_OVERLAY (eglglessink));
if (!eglglessink->have_window && !eglglessink->create_window) {
GST_ERROR_OBJECT (eglglessink, "Window handle unavailable and we "
"were instructed not to create an internal one. Bailing out.");
goto HANDLE_ERROR;
}
eglglessink->last_flow = GST_FLOW_OK;
eglglessink->display_region.w = 0;
eglglessink->display_region.h = 0;
gst_data_queue_set_flushing (eglglessink->queue, FALSE);
#if !GLIB_CHECK_VERSION (2, 31, 0)
eglglessink->thread =
g_thread_create ((GThreadFunc) render_thread_func, eglglessink, TRUE,
&error);
#else
eglglessink->thread = g_thread_try_new ("eglglessink-render",
(GThreadFunc) render_thread_func, eglglessink, &error);
#endif
if (!eglglessink->thread || error != NULL)
goto HANDLE_ERROR;
GST_DEBUG_OBJECT (eglglessink, "Started");
return TRUE;
HANDLE_ERROR:
GST_ERROR_OBJECT (eglglessink, "Couldn't start");
g_clear_error (&error);
return FALSE;
}
static gboolean
gst_eglglessink_stop (GstEglGlesSink * eglglessink)
{
GST_DEBUG_OBJECT (eglglessink, "Stopping");
gst_data_queue_set_flushing (eglglessink->queue, TRUE);
g_mutex_lock (&eglglessink->render_lock);
g_cond_broadcast (&eglglessink->render_cond);
g_mutex_unlock (&eglglessink->render_lock);
if (eglglessink->thread) {
g_thread_join (eglglessink->thread);
eglglessink->thread = NULL;
}
eglglessink->last_flow = GST_FLOW_FLUSHING;
gst_buffer_replace (&eglglessink->last_buffer, NULL);
if (eglglessink->using_own_window) {
platform_destroy_native_window (gst_egl_display_get
(eglglessink->eglglesctx.display), eglglessink->eglglesctx.used_window,
&eglglessink->own_window_data);
eglglessink->eglglesctx.used_window = 0;
eglglessink->have_window = FALSE;
}
eglglessink->eglglesctx.used_window = 0;
if (eglglessink->current_caps) {
gst_caps_unref (eglglessink->current_caps);
eglglessink->current_caps = NULL;
}
GST_DEBUG_OBJECT (eglglessink, "Stopped");
return TRUE;
}
static void
gst_eglglessink_videooverlay_init (GstVideoOverlayInterface * iface)
{
iface->set_window_handle = gst_eglglessink_set_window_handle;
iface->expose = gst_eglglessink_expose;
iface->set_render_rectangle = gst_eglglessink_set_render_rectangle;
}
static inline gboolean
got_gl_error (const char *wtf)
{
GLuint error = GL_NO_ERROR;
if ((error = glGetError ()) != GL_NO_ERROR) {
GST_CAT_ERROR (GST_CAT_DEFAULT, "GL ERROR: %s returned 0x%04x", wtf, error);
return TRUE;
}
return FALSE;
}
static inline gboolean
got_egl_error (const char *wtf)
{
EGLint error;
if ((error = eglGetError ()) != EGL_SUCCESS) {
GST_CAT_DEBUG (GST_CAT_DEFAULT, "EGL ERROR: %s returned 0x%04x", wtf,
error);
return TRUE;
}
return FALSE;
}
static EGLNativeWindowType
gst_eglglessink_create_window (GstEglGlesSink * eglglessink, gint width,
gint height)
{
EGLNativeWindowType window = 0;
if (!eglglessink->create_window) {
GST_ERROR_OBJECT (eglglessink, "This sink can't create a window by itself");
return window;
} else
GST_INFO_OBJECT (eglglessink, "Attempting internal window creation");
window =
platform_create_native_window (width, height,
&eglglessink->own_window_data);
if (!window) {
GST_ERROR_OBJECT (eglglessink, "Could not create window");
return window;
}
return window;
}
static void
gst_eglglessink_expose (GstVideoOverlay * overlay)
{
GstEglGlesSink *eglglessink;
GstFlowReturn ret;
eglglessink = GST_EGLGLESSINK (overlay);
GST_DEBUG_OBJECT (eglglessink, "Expose catched, redisplay");
/* Render from last seen buffer */
ret = gst_eglglessink_queue_object (eglglessink, NULL);
if (ret == GST_FLOW_ERROR)
GST_ERROR_OBJECT (eglglessink, "Redisplay failed");
}
/* Prints available EGL/GLES extensions
* If another rendering path is implemented this is the place
* where you want to check for the availability of its supporting
* EGL/GLES extensions.
*/
static void
gst_eglglessink_init_egl_exts (GstEglGlesSink * eglglessink)
{
const char *eglexts;
unsigned const char *glexts;
eglexts =
eglQueryString (gst_egl_display_get (eglglessink->eglglesctx.display),
EGL_EXTENSIONS);
glexts = glGetString (GL_EXTENSIONS);
GST_DEBUG_OBJECT (eglglessink, "Available EGL extensions: %s\n",
GST_STR_NULL (eglexts));
GST_DEBUG_OBJECT (eglglessink, "Available GLES extensions: %s\n",
GST_STR_NULL ((const char *) glexts));
return;
}
static gboolean
gst_eglglessink_setup_vbo (GstEglGlesSink * eglglessink, gboolean reset)
{
gdouble render_width, render_height;
gdouble texture_width, texture_height;
gdouble x1, x2, y1, y2;
gdouble tx1, tx2, ty1, ty2;
GST_INFO_OBJECT (eglglessink, "VBO setup. have_vbo:%d, should reset %d",
eglglessink->have_vbo, reset);
if (eglglessink->have_vbo && reset) {
glDeleteBuffers (1, &eglglessink->eglglesctx.position_buffer);
glDeleteBuffers (1, &eglglessink->eglglesctx.index_buffer);
eglglessink->have_vbo = FALSE;
}
render_width = eglglessink->render_region.w;
render_height = eglglessink->render_region.h;
texture_width = eglglessink->configured_info.width;
texture_height = eglglessink->configured_info.height;
GST_DEBUG_OBJECT (eglglessink, "Performing VBO setup");
x1 = (eglglessink->display_region.x / render_width) * 2.0 - 1;
y1 = (eglglessink->display_region.y / render_height) * 2.0 - 1;
x2 = ((eglglessink->display_region.x +
eglglessink->display_region.w) / render_width) * 2.0 - 1;
y2 = ((eglglessink->display_region.y +
eglglessink->display_region.h) / render_height) * 2.0 - 1;
tx1 = (eglglessink->crop.x / texture_width);
tx2 = ((eglglessink->crop.x + eglglessink->crop.w) / texture_width);
ty1 = (eglglessink->crop.y / texture_height);
ty2 = ((eglglessink->crop.y + eglglessink->crop.h) / texture_height);
/* X-normal, Y-normal orientation */
eglglessink->eglglesctx.position_array[0].x = x2;
eglglessink->eglglesctx.position_array[0].y = y2;
eglglessink->eglglesctx.position_array[0].z = 0;
eglglessink->eglglesctx.position_array[0].a = tx2;
eglglessink->eglglesctx.position_array[0].b = ty1;
eglglessink->eglglesctx.position_array[1].x = x2;
eglglessink->eglglesctx.position_array[1].y = y1;
eglglessink->eglglesctx.position_array[1].z = 0;
eglglessink->eglglesctx.position_array[1].a = tx2;
eglglessink->eglglesctx.position_array[1].b = ty2;
eglglessink->eglglesctx.position_array[2].x = x1;
eglglessink->eglglesctx.position_array[2].y = y2;
eglglessink->eglglesctx.position_array[2].z = 0;
eglglessink->eglglesctx.position_array[2].a = tx1;
eglglessink->eglglesctx.position_array[2].b = ty1;
eglglessink->eglglesctx.position_array[3].x = x1;
eglglessink->eglglesctx.position_array[3].y = y1;
eglglessink->eglglesctx.position_array[3].z = 0;
eglglessink->eglglesctx.position_array[3].a = tx1;
eglglessink->eglglesctx.position_array[3].b = ty2;
/* X-normal, Y-flip orientation */
eglglessink->eglglesctx.position_array[4 + 0].x = x2;
eglglessink->eglglesctx.position_array[4 + 0].y = y2;
eglglessink->eglglesctx.position_array[4 + 0].z = 0;
eglglessink->eglglesctx.position_array[4 + 0].a = tx2;
eglglessink->eglglesctx.position_array[4 + 0].b = ty2;
eglglessink->eglglesctx.position_array[4 + 1].x = x2;
eglglessink->eglglesctx.position_array[4 + 1].y = y1;
eglglessink->eglglesctx.position_array[4 + 1].z = 0;
eglglessink->eglglesctx.position_array[4 + 1].a = tx2;
eglglessink->eglglesctx.position_array[4 + 1].b = ty1;
eglglessink->eglglesctx.position_array[4 + 2].x = x1;
eglglessink->eglglesctx.position_array[4 + 2].y = y2;
eglglessink->eglglesctx.position_array[4 + 2].z = 0;
eglglessink->eglglesctx.position_array[4 + 2].a = tx1;
eglglessink->eglglesctx.position_array[4 + 2].b = ty2;
eglglessink->eglglesctx.position_array[4 + 3].x = x1;
eglglessink->eglglesctx.position_array[4 + 3].y = y1;
eglglessink->eglglesctx.position_array[4 + 3].z = 0;
eglglessink->eglglesctx.position_array[4 + 3].a = tx1;
eglglessink->eglglesctx.position_array[4 + 3].b = ty1;
if (eglglessink->display_region.x == 0) {
/* Borders top/bottom */
eglglessink->eglglesctx.position_array[8 + 0].x = 1;
eglglessink->eglglesctx.position_array[8 + 0].y = 1;
eglglessink->eglglesctx.position_array[8 + 0].z = 0;
eglglessink->eglglesctx.position_array[8 + 1].x = x2;
eglglessink->eglglesctx.position_array[8 + 1].y = y2;
eglglessink->eglglesctx.position_array[8 + 1].z = 0;
eglglessink->eglglesctx.position_array[8 + 2].x = -1;
eglglessink->eglglesctx.position_array[8 + 2].y = 1;
eglglessink->eglglesctx.position_array[8 + 2].z = 0;
eglglessink->eglglesctx.position_array[8 + 3].x = x1;
eglglessink->eglglesctx.position_array[8 + 3].y = y2;
eglglessink->eglglesctx.position_array[8 + 3].z = 0;
eglglessink->eglglesctx.position_array[12 + 0].x = 1;
eglglessink->eglglesctx.position_array[12 + 0].y = y1;
eglglessink->eglglesctx.position_array[12 + 0].z = 0;
eglglessink->eglglesctx.position_array[12 + 1].x = 1;
eglglessink->eglglesctx.position_array[12 + 1].y = -1;
eglglessink->eglglesctx.position_array[12 + 1].z = 0;
eglglessink->eglglesctx.position_array[12 + 2].x = x1;
eglglessink->eglglesctx.position_array[12 + 2].y = y1;
eglglessink->eglglesctx.position_array[12 + 2].z = 0;
eglglessink->eglglesctx.position_array[12 + 3].x = -1;
eglglessink->eglglesctx.position_array[12 + 3].y = -1;
eglglessink->eglglesctx.position_array[12 + 3].z = 0;
} else {
/* Borders left/right */
eglglessink->eglglesctx.position_array[8 + 0].x = x1;
eglglessink->eglglesctx.position_array[8 + 0].y = 1;
eglglessink->eglglesctx.position_array[8 + 0].z = 0;
eglglessink->eglglesctx.position_array[8 + 1].x = x1;
eglglessink->eglglesctx.position_array[8 + 1].y = -1;
eglglessink->eglglesctx.position_array[8 + 1].z = 0;
eglglessink->eglglesctx.position_array[8 + 2].x = -1;
eglglessink->eglglesctx.position_array[8 + 2].y = 1;
eglglessink->eglglesctx.position_array[8 + 2].z = 0;
eglglessink->eglglesctx.position_array[8 + 3].x = -1;
eglglessink->eglglesctx.position_array[8 + 3].y = -1;
eglglessink->eglglesctx.position_array[8 + 3].z = 0;
eglglessink->eglglesctx.position_array[12 + 0].x = 1;
eglglessink->eglglesctx.position_array[12 + 0].y = 1;
eglglessink->eglglesctx.position_array[12 + 0].z = 0;
eglglessink->eglglesctx.position_array[12 + 1].x = 1;
eglglessink->eglglesctx.position_array[12 + 1].y = -1;
eglglessink->eglglesctx.position_array[12 + 1].z = 0;
eglglessink->eglglesctx.position_array[12 + 2].x = x2;
eglglessink->eglglesctx.position_array[12 + 2].y = y2;
eglglessink->eglglesctx.position_array[12 + 2].z = 0;
eglglessink->eglglesctx.position_array[12 + 3].x = x2;
eglglessink->eglglesctx.position_array[12 + 3].y = -1;
eglglessink->eglglesctx.position_array[12 + 3].z = 0;
}
eglglessink->eglglesctx.index_array[0] = 0;
eglglessink->eglglesctx.index_array[1] = 1;
eglglessink->eglglesctx.index_array[2] = 2;
eglglessink->eglglesctx.index_array[3] = 3;
glGenBuffers (1, &eglglessink->eglglesctx.position_buffer);
glGenBuffers (1, &eglglessink->eglglesctx.index_buffer);
if (got_gl_error ("glGenBuffers"))
goto HANDLE_ERROR_LOCKED;
glBindBuffer (GL_ARRAY_BUFFER, eglglessink->eglglesctx.position_buffer);
if (got_gl_error ("glBindBuffer position_buffer"))
goto HANDLE_ERROR_LOCKED;
glBufferData (GL_ARRAY_BUFFER,
sizeof (eglglessink->eglglesctx.position_array),
eglglessink->eglglesctx.position_array, GL_STATIC_DRAW);
if (got_gl_error ("glBufferData position_buffer"))
goto HANDLE_ERROR_LOCKED;
glBindBuffer (GL_ELEMENT_ARRAY_BUFFER, eglglessink->eglglesctx.index_buffer);
if (got_gl_error ("glBindBuffer index_buffer"))
goto HANDLE_ERROR_LOCKED;
glBufferData (GL_ELEMENT_ARRAY_BUFFER,
sizeof (eglglessink->eglglesctx.index_array),
eglglessink->eglglesctx.index_array, GL_STATIC_DRAW);
if (got_gl_error ("glBufferData index_buffer"))
goto HANDLE_ERROR_LOCKED;
eglglessink->have_vbo = TRUE;
GST_DEBUG_OBJECT (eglglessink, "VBO setup done");
return TRUE;
HANDLE_ERROR_LOCKED:
GST_ERROR_OBJECT (eglglessink, "Unable to perform VBO setup");
return FALSE;
}
/* XXX: Lock eglgles context? */
static gboolean
gst_eglglessink_update_surface_dimensions (GstEglGlesSink * eglglessink)
{
gint width, height;
/* Save surface dims */
eglQuerySurface (gst_egl_display_get (eglglessink->eglglesctx.display),
eglglessink->eglglesctx.surface, EGL_WIDTH, &width);
eglQuerySurface (gst_egl_display_get (eglglessink->eglglesctx.display),
eglglessink->eglglesctx.surface, EGL_HEIGHT, &height);
if (width != eglglessink->eglglesctx.surface_width ||
height != eglglessink->eglglesctx.surface_height) {
eglglessink->eglglesctx.surface_width = width;
eglglessink->eglglesctx.surface_height = height;
GST_INFO_OBJECT (eglglessink, "Got surface of %dx%d pixels", width, height);
return TRUE;
}
return FALSE;
}
static gboolean
gst_eglglessink_context_make_current (GstEglGlesSink * eglglessink,
gboolean bind)
{
g_assert (eglglessink->eglglesctx.display != NULL);
if (bind && eglglessink->eglglesctx.surface &&
eglglessink->eglglesctx.eglcontext) {
EGLContext *ctx = eglGetCurrentContext ();
if (ctx == eglglessink->eglglesctx.eglcontext) {
GST_DEBUG_OBJECT (eglglessink,
"Already attached the context to thread %p", g_thread_self ());
return TRUE;
}
GST_DEBUG_OBJECT (eglglessink, "Attaching context to thread %p",
g_thread_self ());
if (!eglMakeCurrent (gst_egl_display_get (eglglessink->eglglesctx.display),
eglglessink->eglglesctx.surface, eglglessink->eglglesctx.surface,
eglglessink->eglglesctx.eglcontext)) {
got_egl_error ("eglMakeCurrent");
GST_ERROR_OBJECT (eglglessink, "Couldn't bind context");
return FALSE;
}
} else {
GST_DEBUG_OBJECT (eglglessink, "Detaching context from thread %p",
g_thread_self ());
if (!eglMakeCurrent (gst_egl_display_get (eglglessink->eglglesctx.display),
EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT)) {
got_egl_error ("eglMakeCurrent");
GST_ERROR_OBJECT (eglglessink, "Couldn't unbind context");
return FALSE;
}
}
return TRUE;
}
static gboolean
create_shader_program (GstEglGlesSink * eglglessink, GLuint * prog,
GLuint * vert, GLuint * frag, const gchar * vert_text,
const gchar * frag_text)
{
GLint test;
GLchar *info_log;
/* Build shader program for video texture rendering */
*vert = glCreateShader (GL_VERTEX_SHADER);
GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d", vert_text, *vert);
glShaderSource (*vert, 1, &vert_text, NULL);
if (got_gl_error ("glShaderSource vertex"))
goto HANDLE_ERROR;
glCompileShader (*vert);
if (got_gl_error ("glCompileShader vertex"))
goto HANDLE_ERROR;
glGetShaderiv (*vert, GL_COMPILE_STATUS, &test);
if (test != GL_FALSE)
GST_DEBUG_OBJECT (eglglessink, "Successfully compiled vertex shader");
else {
GST_ERROR_OBJECT (eglglessink, "Couldn't compile vertex shader");
glGetShaderiv (*vert, GL_INFO_LOG_LENGTH, &test);
info_log = g_new0 (GLchar, test);
glGetShaderInfoLog (*vert, test, NULL, info_log);
GST_INFO_OBJECT (eglglessink, "Compilation info log:\n%s", info_log);
g_free (info_log);
goto HANDLE_ERROR;
}
*frag = glCreateShader (GL_FRAGMENT_SHADER);
GST_DEBUG_OBJECT (eglglessink, "Sending %s to handle %d", frag_text, *frag);
glShaderSource (*frag, 1, &frag_text, NULL);
if (got_gl_error ("glShaderSource fragment"))
goto HANDLE_ERROR;
glCompileShader (*frag);
if (got_gl_error ("glCompileShader fragment"))
goto HANDLE_ERROR;
glGetShaderiv (*frag, GL_COMPILE_STATUS, &test);
if (test != GL_FALSE)
GST_DEBUG_OBJECT (eglglessink, "Successfully compiled fragment shader");
else {
GST_ERROR_OBJECT (eglglessink, "Couldn't compile fragment shader");
glGetShaderiv (*frag, GL_INFO_LOG_LENGTH, &test);
info_log = g_new0 (GLchar, test);
glGetShaderInfoLog (*frag, test, NULL, info_log);
GST_INFO_OBJECT (eglglessink, "Compilation info log:\n%s", info_log);
g_free (info_log);
goto HANDLE_ERROR;
}
*prog = glCreateProgram ();
if (got_gl_error ("glCreateProgram"))
goto HANDLE_ERROR;
glAttachShader (*prog, *vert);
if (got_gl_error ("glAttachShader vertices"))
goto HANDLE_ERROR;
glAttachShader (*prog, *frag);
if (got_gl_error ("glAttachShader fragments"))
goto HANDLE_ERROR;
glLinkProgram (*prog);
glGetProgramiv (*prog, GL_LINK_STATUS, &test);
if (test != GL_FALSE) {
GST_DEBUG_OBJECT (eglglessink, "GLES: Successfully linked program");
} else {
GST_ERROR_OBJECT (eglglessink, "Couldn't link program");
goto HANDLE_ERROR;
}
return TRUE;
HANDLE_ERROR:
{
if (*frag && *prog)
glDetachShader (*prog, *frag);
if (*vert && *prog)
glDetachShader (*prog, *vert);
if (*prog)
glDeleteProgram (*prog);
if (*frag)
glDeleteShader (*frag);
if (*vert)
glDeleteShader (*vert);
*prog = 0;
*frag = 0;
*vert = 0;
return FALSE;
}
}
static gboolean
gst_eglglessink_init_egl_surface (GstEglGlesSink * eglglessink)
{
GLboolean ret;
EGLint display_par;
const gchar *texnames[3] = { NULL, };
gchar *frag_prog = NULL;
gboolean free_frag_prog = FALSE;
EGLint swap_behavior;
gint i;
GST_DEBUG_OBJECT (eglglessink, "Enter EGL surface setup");
eglglessink->eglglesctx.surface =
eglCreateWindowSurface (gst_egl_display_get (eglglessink->
eglglesctx.display), eglglessink->eglglesctx.config,
eglglessink->eglglesctx.used_window, NULL);
if (eglglessink->eglglesctx.surface == EGL_NO_SURFACE) {
got_egl_error ("eglCreateWindowSurface");
GST_ERROR_OBJECT (eglglessink, "Can't create surface");
goto HANDLE_EGL_ERROR_LOCKED;
}
eglglessink->eglglesctx.buffer_preserved = FALSE;
if (eglQuerySurface (gst_egl_display_get (eglglessink->eglglesctx.display),
eglglessink->eglglesctx.surface, EGL_SWAP_BEHAVIOR, &swap_behavior)) {
GST_DEBUG_OBJECT (eglglessink, "Buffer swap behavior %x", swap_behavior);
eglglessink->eglglesctx.buffer_preserved =
swap_behavior == EGL_BUFFER_PRESERVED;
} else {
GST_DEBUG_OBJECT (eglglessink, "Can't query buffer swap behavior");
}
if (!gst_eglglessink_context_make_current (eglglessink, TRUE))
goto HANDLE_EGL_ERROR_LOCKED;
/* Save display's pixel aspect ratio
*
* DAR is reported as w/h * EGL_DISPLAY_SCALING wich is
* a constant with value 10000. This attribute is only
* supported if the EGL version is >= 1.2
* XXX: Setup this as a property.
* or some other one time check. Right now it's being called once
* per frame.
*/
if (eglglessink->eglglesctx.egl_major == 1 &&
eglglessink->eglglesctx.egl_minor < 2) {
GST_DEBUG_OBJECT (eglglessink, "Can't query PAR. Using default: %dx%d",
EGL_DISPLAY_SCALING, EGL_DISPLAY_SCALING);
eglglessink->eglglesctx.pixel_aspect_ratio = EGL_DISPLAY_SCALING;
} else {
eglQuerySurface (gst_egl_display_get (eglglessink->eglglesctx.display),
eglglessink->eglglesctx.surface, EGL_PIXEL_ASPECT_RATIO, &display_par);
/* Fix for outbound DAR reporting on some implementations not
* honoring the 'should return w/h * EGL_DISPLAY_SCALING' spec
* requirement
*/
if (display_par == EGL_UNKNOWN || display_par < EGL_SANE_DAR_MIN ||
display_par > EGL_SANE_DAR_MAX) {
GST_DEBUG_OBJECT (eglglessink, "Nonsensical PAR value returned: %d. "
"Bad EGL implementation? "
"Will use default: %d/%d", eglglessink->eglglesctx.pixel_aspect_ratio,
EGL_DISPLAY_SCALING, EGL_DISPLAY_SCALING);
eglglessink->eglglesctx.pixel_aspect_ratio = EGL_DISPLAY_SCALING;
} else {
eglglessink->eglglesctx.pixel_aspect_ratio = display_par;
}
}
/* Save surface dims */
gst_eglglessink_update_surface_dimensions (eglglessink);
/* We have a surface! */
eglglessink->have_surface = TRUE;
/* Init vertex and fragment GLSL shaders.
* Note: Shader compiler support is optional but we currently rely on it.
*/
glGetBooleanv (GL_SHADER_COMPILER, &ret);
if (ret == GL_FALSE) {
GST_ERROR_OBJECT (eglglessink, "Shader compiler support is unavailable!");
goto HANDLE_ERROR;
}
/* Build shader program for video texture rendering */
switch (eglglessink->configured_info.finfo->format) {
case GST_VIDEO_FORMAT_AYUV:
frag_prog = (gchar *) frag_AYUV_prog;
free_frag_prog = FALSE;
eglglessink->eglglesctx.n_textures = 1;
texnames[0] = "tex";
break;
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_Y41B:
frag_prog = (gchar *) frag_PLANAR_YUV_prog;
free_frag_prog = FALSE;
eglglessink->eglglesctx.n_textures = 3;
texnames[0] = "Ytex";
texnames[1] = "Utex";
texnames[2] = "Vtex";
break;
case GST_VIDEO_FORMAT_NV12:
frag_prog = g_strdup_printf (frag_NV12_NV21_prog, 'r', 'a');
free_frag_prog = TRUE;
eglglessink->eglglesctx.n_textures = 2;
texnames[0] = "Ytex";
texnames[1] = "UVtex";
break;
case GST_VIDEO_FORMAT_NV21:
frag_prog = g_strdup_printf (frag_NV12_NV21_prog, 'a', 'r');
free_frag_prog = TRUE;
eglglessink->eglglesctx.n_textures = 2;
texnames[0] = "Ytex";
texnames[1] = "UVtex";
break;
case GST_VIDEO_FORMAT_BGR:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_BGRA:
frag_prog = g_strdup_printf (frag_REORDER_prog, 'b', 'g', 'r');
free_frag_prog = TRUE;
eglglessink->eglglesctx.n_textures = 1;
texnames[0] = "tex";
break;
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_ARGB:
frag_prog = g_strdup_printf (frag_REORDER_prog, 'g', 'b', 'a');
free_frag_prog = TRUE;
eglglessink->eglglesctx.n_textures = 1;
texnames[0] = "tex";
break;
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_ABGR:
frag_prog = g_strdup_printf (frag_REORDER_prog, 'a', 'b', 'g');
free_frag_prog = TRUE;
eglglessink->eglglesctx.n_textures = 1;
texnames[0] = "tex";
break;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_RGB16:
frag_prog = (gchar *) frag_COPY_prog;
free_frag_prog = FALSE;
eglglessink->eglglesctx.n_textures = 1;
texnames[0] = "tex";
break;
default:
g_assert_not_reached ();
break;
}
if (!create_shader_program (eglglessink,
&eglglessink->eglglesctx.glslprogram[0],
&eglglessink->eglglesctx.vertshader[0],
&eglglessink->eglglesctx.fragshader[0], vert_COPY_prog, frag_prog)) {
if (free_frag_prog)
g_free (frag_prog);
frag_prog = NULL;
goto HANDLE_ERROR;
}
if (free_frag_prog)
g_free (frag_prog);
frag_prog = NULL;
eglglessink->eglglesctx.position_loc[0] =
glGetAttribLocation (eglglessink->eglglesctx.glslprogram[0], "position");
eglglessink->eglglesctx.texpos_loc[0] =
glGetAttribLocation (eglglessink->eglglesctx.glslprogram[0], "texpos");
eglglessink->eglglesctx.tex_scale_loc[0][0] =
glGetUniformLocation (eglglessink->eglglesctx.glslprogram[0],
"tex_scale0");
eglglessink->eglglesctx.tex_scale_loc[0][1] =
glGetUniformLocation (eglglessink->eglglesctx.glslprogram[0],
"tex_scale1");
eglglessink->eglglesctx.tex_scale_loc[0][2] =
glGetUniformLocation (eglglessink->eglglesctx.glslprogram[0],
"tex_scale2");
glEnableVertexAttribArray (eglglessink->eglglesctx.position_loc[0]);
if (got_gl_error ("glEnableVertexAttribArray"))
goto HANDLE_ERROR;
glEnableVertexAttribArray (eglglessink->eglglesctx.texpos_loc[0]);
if (got_gl_error ("glEnableVertexAttribArray"))
goto HANDLE_ERROR;
for (i = 0; i < eglglessink->eglglesctx.n_textures; i++) {
eglglessink->eglglesctx.tex_loc[0][i] =
glGetUniformLocation (eglglessink->eglglesctx.glslprogram[0],
texnames[i]);
}
/* custom rendering shader */
if (!create_shader_program (eglglessink,
&eglglessink->eglglesctx.glslprogram[2],
&eglglessink->eglglesctx.vertshader[2],
&eglglessink->eglglesctx.fragshader[2], vert_COPY_prog,
frag_COPY_DIRECT_prog)) {
if (free_frag_prog)
g_free (frag_prog);
frag_prog = NULL;
goto HANDLE_ERROR;
}
if (free_frag_prog)
g_free (frag_prog);
frag_prog = NULL;
eglglessink->eglglesctx.position_loc[2] =
glGetAttribLocation (eglglessink->eglglesctx.glslprogram[2], "position");
eglglessink->eglglesctx.texpos_loc[1] =
glGetAttribLocation (eglglessink->eglglesctx.glslprogram[2], "texpos");
glEnableVertexAttribArray (eglglessink->eglglesctx.position_loc[2]);
if (got_gl_error ("glEnableVertexAttribArray"))
goto HANDLE_ERROR;
eglglessink->eglglesctx.tex_loc[1][0] =
glGetUniformLocation (eglglessink->eglglesctx.glslprogram[2], "tex");
if (!eglglessink->eglglesctx.buffer_preserved) {
/* Build shader program for black borders */
if (!create_shader_program (eglglessink,
&eglglessink->eglglesctx.glslprogram[1],
&eglglessink->eglglesctx.vertshader[1],
&eglglessink->eglglesctx.fragshader[1], vert_COPY_prog_no_tex,
frag_BLACK_prog))
goto HANDLE_ERROR;
eglglessink->eglglesctx.position_loc[1] =
glGetAttribLocation (eglglessink->eglglesctx.glslprogram[1],
"position");
glEnableVertexAttribArray (eglglessink->eglglesctx.position_loc[1]);
if (got_gl_error ("glEnableVertexAttribArray"))
goto HANDLE_ERROR;
}
/* Generate textures */
if (!eglglessink->have_texture) {
GST_INFO_OBJECT (eglglessink, "Performing initial texture setup");
glGenTextures (eglglessink->eglglesctx.n_textures+1,
eglglessink->eglglesctx.texture);
if (got_gl_error ("glGenTextures"))
goto HANDLE_ERROR_LOCKED;
for (i = 0; i < eglglessink->eglglesctx.n_textures+1; i++) {
glBindTexture (GL_TEXTURE_2D, eglglessink->eglglesctx.texture[i]);
if (got_gl_error ("glBindTexture"))
goto HANDLE_ERROR;
/* Set 2D resizing params */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
/* If these are not set the texture image unit will return
* (R, G, B, A) = black on glTexImage2D for non-POT width/height
* frames. For a deeper explanation take a look at the OpenGL ES
* documentation for glTexParameter */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (got_gl_error ("glTexParameteri"))
goto HANDLE_ERROR_LOCKED;
}
eglglessink->have_texture = TRUE;
}
glUseProgram (0);
return TRUE;
/* Errors */
HANDLE_EGL_ERROR_LOCKED:
GST_ERROR_OBJECT (eglglessink, "EGL call returned error %x", eglGetError ());
HANDLE_ERROR_LOCKED:
HANDLE_ERROR:
GST_ERROR_OBJECT (eglglessink, "Couldn't setup EGL surface");
return FALSE;
}
static gboolean
gst_eglglessink_init_egl_display (GstEglGlesSink * eglglessink)
{
GstMessage *msg;
EGLDisplay display;
GST_DEBUG_OBJECT (eglglessink, "Enter EGL initial configuration");
#ifdef USE_EGL_RPI
/* See https://github.com/raspberrypi/firmware/issues/99 */
if (!eglMakeCurrent ((EGLDisplay) 1, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT)) {
got_egl_error ("eglMakeCurrent");
GST_ERROR_OBJECT (eglglessink, "Couldn't unbind context");
return FALSE;
}
#endif
msg = gst_message_new_need_context (GST_OBJECT_CAST (eglglessink));
gst_message_add_context_type (msg, GST_EGL_DISPLAY_CONTEXT_TYPE);
gst_element_post_message (GST_ELEMENT_CAST (eglglessink), msg);
GST_OBJECT_LOCK (eglglessink);
if (eglglessink->eglglesctx.set_display) {
GstContext * context;
eglglessink->eglglesctx.display =
gst_egl_display_ref (eglglessink->eglglesctx.set_display);
GST_OBJECT_UNLOCK (eglglessink);
context = gst_element_get_context (GST_ELEMENT_CAST (eglglessink));
if (!context)
context = gst_context_new ();
context = gst_context_make_writable (context);
gst_context_set_egl_display (context, eglglessink->eglglesctx.display);
gst_element_set_context (GST_ELEMENT_CAST (eglglessink), context);
} else {
GstContext *context;
GST_OBJECT_UNLOCK (eglglessink);
display = eglGetDisplay (EGL_DEFAULT_DISPLAY);
if (display == EGL_NO_DISPLAY) {
GST_ERROR_OBJECT (eglglessink, "Could not get EGL display connection");
goto HANDLE_ERROR; /* No EGL error is set by eglGetDisplay() */
}
eglglessink->eglglesctx.display = gst_egl_display_new (display);
context = gst_context_new ();
gst_context_set_egl_display (context, eglglessink->eglglesctx.display);
msg = gst_message_new_have_context (GST_OBJECT (eglglessink), context);
gst_element_post_message (GST_ELEMENT_CAST (eglglessink), msg);
context = gst_element_get_context (GST_ELEMENT_CAST (eglglessink));
if (!context)
context = gst_context_new ();
context = gst_context_make_writable (context);
gst_context_set_egl_display (context, eglglessink->eglglesctx.display);
gst_element_set_context (GST_ELEMENT_CAST (eglglessink), context);
}
if (!eglInitialize (gst_egl_display_get (eglglessink->eglglesctx.display),
&eglglessink->eglglesctx.egl_major,
&eglglessink->eglglesctx.egl_minor)) {
got_egl_error ("eglInitialize");
GST_ERROR_OBJECT (eglglessink, "Could not init EGL display connection");
goto HANDLE_EGL_ERROR;
}
/* Check against required EGL version
* XXX: Need to review the version requirement in terms of the needed API
*/
if (eglglessink->eglglesctx.egl_major < GST_EGLGLESSINK_EGL_MIN_VERSION) {
GST_ERROR_OBJECT (eglglessink, "EGL v%d needed, but you only have v%d.%d",
GST_EGLGLESSINK_EGL_MIN_VERSION, eglglessink->eglglesctx.egl_major,
eglglessink->eglglesctx.egl_minor);
goto HANDLE_ERROR;
}
GST_INFO_OBJECT (eglglessink, "System reports supported EGL version v%d.%d",
eglglessink->eglglesctx.egl_major, eglglessink->eglglesctx.egl_minor);
eglBindAPI (EGL_OPENGL_ES_API);
return TRUE;
/* Errors */
HANDLE_EGL_ERROR:
GST_ERROR_OBJECT (eglglessink, "EGL call returned error %x", eglGetError ());
HANDLE_ERROR:
GST_ERROR_OBJECT (eglglessink, "Couldn't setup window/surface from handle");
return FALSE;
}
static gboolean
gst_eglglessink_choose_config (GstEglGlesSink * eglglessink)
{
EGLint con_attribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
GLint egl_configs;
if ((eglChooseConfig (gst_egl_display_get (eglglessink->eglglesctx.display),
eglglessink_RGBA8888_attribs,
&eglglessink->eglglesctx.config, 1, &egl_configs)) == EGL_FALSE) {
got_egl_error ("eglChooseConfig");
GST_ERROR_OBJECT (eglglessink, "eglChooseConfig failed");
goto HANDLE_EGL_ERROR;
}
if (egl_configs < 1) {
GST_ERROR_OBJECT (eglglessink,
"Could not find matching framebuffer config");
goto HANDLE_ERROR;
}
eglglessink->eglglesctx.eglcontext =
eglCreateContext (gst_egl_display_get (eglglessink->eglglesctx.display),
eglglessink->eglglesctx.config, EGL_NO_CONTEXT, con_attribs);
if (eglglessink->eglglesctx.eglcontext == EGL_NO_CONTEXT) {
GST_ERROR_OBJECT (eglglessink, "Error getting context, eglCreateContext");
goto HANDLE_EGL_ERROR;
}
GST_DEBUG_OBJECT (eglglessink, "EGL Context: %p",
eglglessink->eglglesctx.eglcontext);
return TRUE;
/* Errors */
HANDLE_EGL_ERROR:
GST_ERROR_OBJECT (eglglessink, "EGL call returned error %x", eglGetError ());
HANDLE_ERROR:
GST_ERROR_OBJECT (eglglessink, "Couldn't choose an usable config");
return FALSE;
}
static void
gst_eglglessink_set_window_handle (GstVideoOverlay * overlay, guintptr id)
{
GstEglGlesSink *eglglessink = GST_EGLGLESSINK (overlay);
g_return_if_fail (GST_IS_EGLGLESSINK (eglglessink));
GST_DEBUG_OBJECT (eglglessink, "We got a window handle: %p", (gpointer) id);
/* OK, we have a new window */
GST_OBJECT_LOCK (eglglessink);
eglglessink->eglglesctx.window = (EGLNativeWindowType) id;
eglglessink->have_window = ((gpointer) id != NULL);
GST_OBJECT_UNLOCK (eglglessink);
return;
}
static void
gst_eglglessink_set_render_rectangle (GstVideoOverlay * overlay, gint x, gint y,
gint width, gint height)
{
GstEglGlesSink *eglglessink = GST_EGLGLESSINK (overlay);
g_return_if_fail (GST_IS_EGLGLESSINK (eglglessink));
GST_OBJECT_LOCK (eglglessink);
eglglessink->render_region.x = x;
eglglessink->render_region.y = y;
eglglessink->render_region.w = width;
eglglessink->render_region.h = height;
eglglessink->render_region_changed = TRUE;
eglglessink->render_region_user = (width != -1 && height != -1);
GST_OBJECT_UNLOCK (eglglessink);
return;
}
static void
queue_item_destroy (GstDataQueueItem * item)
{
if (item->object && !GST_IS_QUERY (item->object))
gst_mini_object_unref (item->object);
g_slice_free (GstDataQueueItem, item);
}
static GstFlowReturn
gst_eglglessink_queue_object (GstEglGlesSink * eglglessink, GstMiniObject * obj)
{
GstDataQueueItem *item;
GstFlowReturn last_flow;
g_mutex_lock (&eglglessink->render_lock);
last_flow = eglglessink->last_flow;
g_mutex_unlock (&eglglessink->render_lock);
if (last_flow != GST_FLOW_OK)
return last_flow;
item = g_slice_new0 (GstDataQueueItem);
if (obj == NULL)
item->object = NULL;
else if (GST_IS_QUERY (obj))
item->object = obj;
else
item->object = gst_mini_object_ref (obj);
item->size = 0;
item->duration = GST_CLOCK_TIME_NONE;
item->visible = TRUE;
item->destroy = (GDestroyNotify) queue_item_destroy;
GST_DEBUG_OBJECT (eglglessink, "Queueing object %" GST_PTR_FORMAT, obj);
g_mutex_lock (&eglglessink->render_lock);
if (!gst_data_queue_push (eglglessink->queue, item)) {
item->destroy (item);
g_mutex_unlock (&eglglessink->render_lock);
GST_DEBUG_OBJECT (eglglessink, "Flushing");
return GST_FLOW_FLUSHING;
}
GST_DEBUG_OBJECT (eglglessink, "Waiting for object to be handled");
do {
g_cond_wait (&eglglessink->render_cond, &eglglessink->render_lock);
} while (eglglessink->dequeued_object != obj
&& eglglessink->last_flow != GST_FLOW_FLUSHING);
GST_DEBUG_OBJECT (eglglessink, "Object handled: %s",
gst_flow_get_name (eglglessink->last_flow));
last_flow = eglglessink->last_flow;
g_mutex_unlock (&eglglessink->render_lock);
return (obj ? last_flow : GST_FLOW_OK);
}
static gboolean
gst_eglglessink_crop_changed (GstEglGlesSink * eglglessink,
GstVideoCropMeta * crop)
{
if (crop) {
return (crop->x != eglglessink->crop.x ||
crop->y != eglglessink->crop.y ||
crop->width != eglglessink->crop.w ||
crop->height != eglglessink->crop.h);
}
return (eglglessink->crop.x != 0 || eglglessink->crop.y != 0 ||
eglglessink->crop.w != eglglessink->configured_info.width ||
eglglessink->crop.h != eglglessink->configured_info.height);
}
static gboolean
gst_eglglessink_fill_texture (GstEglGlesSink * eglglessink, GstBuffer * buf)
{
GstVideoFrame vframe;
gint w, h;
memset (&vframe, 0, sizeof (vframe));
if (!gst_video_frame_map (&vframe, &eglglessink->configured_info, buf,
GST_MAP_READ)) {
GST_ERROR_OBJECT (eglglessink, "Couldn't map frame");
goto HANDLE_ERROR;
}
w = GST_VIDEO_FRAME_WIDTH (&vframe);
h = GST_VIDEO_FRAME_HEIGHT (&vframe);
GST_DEBUG_OBJECT (eglglessink,
"Got buffer %p: %dx%d size %d", buf, w, h, gst_buffer_get_size (buf));
switch (eglglessink->configured_info.finfo->format) {
case GST_VIDEO_FORMAT_BGR:
case GST_VIDEO_FORMAT_RGB:{
gint stride;
gint stride_width;
gint c_w;
stride = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 0);
stride_width = c_w = GST_VIDEO_FRAME_WIDTH (&vframe);
glActiveTexture (GL_TEXTURE0);
if (GST_ROUND_UP_8 (c_w * 3) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (c_w * 3) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (GST_ROUND_UP_2 (c_w * 3) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else if (c_w * 3 == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
} else {
stride_width = stride;
if (GST_ROUND_UP_8 (stride_width * 3) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (stride_width * 3) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (GST_ROUND_UP_2 (stride_width * 3) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else if (stride_width * 3 == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
} else {
GST_ERROR_OBJECT (eglglessink, "Unsupported stride %d", stride);
goto HANDLE_ERROR;
}
}
if (got_gl_error ("glPixelStorei"))
goto HANDLE_ERROR;
eglglessink->stride[0] = ((gdouble) stride_width) / ((gdouble) c_w);
glBindTexture (GL_TEXTURE_2D, eglglessink->eglglesctx.texture[0]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGB, stride_width, h, 0, GL_RGB,
GL_UNSIGNED_BYTE, GST_VIDEO_FRAME_PLANE_DATA (&vframe, 0));
break;
}
case GST_VIDEO_FORMAT_RGB16:{
gint stride;
gint stride_width;
gint c_w;
stride = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 0);
stride_width = c_w = GST_VIDEO_FRAME_WIDTH (&vframe);
glActiveTexture (GL_TEXTURE0);
if (GST_ROUND_UP_8 (c_w * 2) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (c_w * 2) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (c_w * 2 == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else {
stride_width = stride;
if (GST_ROUND_UP_8 (stride_width * 4) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (stride_width * 2) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (stride_width * 2 == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else {
GST_ERROR_OBJECT (eglglessink, "Unsupported stride %d", stride);
goto HANDLE_ERROR;
}
}
if (got_gl_error ("glPixelStorei"))
goto HANDLE_ERROR;
eglglessink->stride[0] = ((gdouble) stride_width) / ((gdouble) c_w);
glBindTexture (GL_TEXTURE_2D, eglglessink->eglglesctx.texture[0]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGB, stride_width, h, 0, GL_RGB,
GL_UNSIGNED_SHORT_5_6_5, GST_VIDEO_FRAME_PLANE_DATA (&vframe, 0));
break;
}
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:{
gint stride;
gint stride_width;
gint c_w;
stride = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 0);
stride_width = c_w = GST_VIDEO_FRAME_WIDTH (&vframe);
glActiveTexture (GL_TEXTURE0);
if (GST_ROUND_UP_8 (c_w * 4) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (c_w * 4 == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else {
stride_width = stride;
if (GST_ROUND_UP_8 (stride_width * 4) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (stride_width * 4 == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else {
GST_ERROR_OBJECT (eglglessink, "Unsupported stride %d", stride);
goto HANDLE_ERROR;
}
}
if (got_gl_error ("glPixelStorei"))
goto HANDLE_ERROR;
eglglessink->stride[0] = ((gdouble) stride_width) / ((gdouble) c_w);
glBindTexture (GL_TEXTURE_2D, eglglessink->eglglesctx.texture[0]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, stride_width, h, 0,
GL_RGBA, GL_UNSIGNED_BYTE, GST_VIDEO_FRAME_PLANE_DATA (&vframe, 0));
break;
}
case GST_VIDEO_FORMAT_AYUV:{
gint stride;
gint stride_width;
gint c_w;
stride = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 0);
stride_width = c_w = GST_VIDEO_FRAME_WIDTH (&vframe);
glActiveTexture (GL_TEXTURE0);
if (GST_ROUND_UP_8 (c_w * 4) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (c_w * 4 == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else {
stride_width = stride;
if (GST_ROUND_UP_8 (stride_width * 4) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (stride_width * 4 == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else {
GST_ERROR_OBJECT (eglglessink, "Unsupported stride %d", stride);
goto HANDLE_ERROR;
}
}
if (got_gl_error ("glPixelStorei"))
goto HANDLE_ERROR;
eglglessink->stride[0] = ((gdouble) stride_width) / ((gdouble) c_w);
glBindTexture (GL_TEXTURE_2D, eglglessink->eglglesctx.texture[0]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, stride_width, h, 0,
GL_RGBA, GL_UNSIGNED_BYTE, GST_VIDEO_FRAME_PLANE_DATA (&vframe, 0));
break;
}
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_Y41B:{
gint stride;
gint stride_width;
gint c_w;
stride = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 0);
stride_width = c_w = GST_VIDEO_FRAME_COMP_WIDTH (&vframe, 0);
glActiveTexture (GL_TEXTURE0);
if (GST_ROUND_UP_8 (c_w) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (c_w) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (GST_ROUND_UP_2 (c_w) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else if (c_w == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
} else {
stride_width = stride;
if (GST_ROUND_UP_8 (stride_width) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (stride_width) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (GST_ROUND_UP_2 (stride_width) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else if (stride_width == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
} else {
GST_ERROR_OBJECT (eglglessink, "Unsupported stride %d", stride);
goto HANDLE_ERROR;
}
}
if (got_gl_error ("glPixelStorei"))
goto HANDLE_ERROR;
eglglessink->stride[0] = ((gdouble) stride_width) / ((gdouble) c_w);
glBindTexture (GL_TEXTURE_2D, eglglessink->eglglesctx.texture[0]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE,
stride_width,
GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, 0),
0, GL_LUMINANCE, GL_UNSIGNED_BYTE,
GST_VIDEO_FRAME_COMP_DATA (&vframe, 0));
stride = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 1);
stride_width = c_w = GST_VIDEO_FRAME_COMP_WIDTH (&vframe, 1);
glActiveTexture (GL_TEXTURE1);
if (GST_ROUND_UP_8 (c_w) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (c_w) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (GST_ROUND_UP_2 (c_w) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else if (c_w == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
} else {
stride_width = stride;
if (GST_ROUND_UP_8 (stride_width) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (stride_width) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (GST_ROUND_UP_2 (stride_width) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else if (stride_width == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
} else {
GST_ERROR_OBJECT (eglglessink, "Unsupported stride %d", stride);
goto HANDLE_ERROR;
}
}
if (got_gl_error ("glPixelStorei"))
goto HANDLE_ERROR;
eglglessink->stride[1] = ((gdouble) stride_width) / ((gdouble) c_w);
glBindTexture (GL_TEXTURE_2D, eglglessink->eglglesctx.texture[1]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE,
stride_width,
GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, 1),
0, GL_LUMINANCE, GL_UNSIGNED_BYTE,
GST_VIDEO_FRAME_COMP_DATA (&vframe, 1));
stride = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 2);
stride_width = c_w = GST_VIDEO_FRAME_COMP_WIDTH (&vframe, 2);
glActiveTexture (GL_TEXTURE2);
if (GST_ROUND_UP_8 (c_w) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (c_w) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (GST_ROUND_UP_2 (c_w) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else if (c_w == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
} else {
stride_width = stride;
if (GST_ROUND_UP_8 (stride_width) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (stride_width) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (GST_ROUND_UP_2 (stride_width) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else if (stride_width == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
} else {
GST_ERROR_OBJECT (eglglessink, "Unsupported stride %d", stride);
goto HANDLE_ERROR;
}
}
if (got_gl_error ("glPixelStorei"))
goto HANDLE_ERROR;
eglglessink->stride[2] = ((gdouble) stride_width) / ((gdouble) c_w);
glBindTexture (GL_TEXTURE_2D, eglglessink->eglglesctx.texture[2]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE,
stride_width,
GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, 2),
0, GL_LUMINANCE, GL_UNSIGNED_BYTE,
GST_VIDEO_FRAME_COMP_DATA (&vframe, 2));
break;
}
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:{
gint stride;
gint stride_width;
gint c_w;
stride = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 0);
stride_width = c_w = GST_VIDEO_FRAME_COMP_WIDTH (&vframe, 0);
glActiveTexture (GL_TEXTURE0);
if (GST_ROUND_UP_8 (c_w) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (c_w) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (GST_ROUND_UP_2 (c_w) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else if (c_w == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
} else {
stride_width = stride;
if (GST_ROUND_UP_8 (stride_width) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (stride_width) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (GST_ROUND_UP_2 (stride_width) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else if (stride_width == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
} else {
GST_ERROR_OBJECT (eglglessink, "Unsupported stride %d", stride);
goto HANDLE_ERROR;
}
}
if (got_gl_error ("glPixelStorei"))
goto HANDLE_ERROR;
eglglessink->stride[0] = ((gdouble) stride_width) / ((gdouble) c_w);
glBindTexture (GL_TEXTURE_2D, eglglessink->eglglesctx.texture[0]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE,
stride_width,
GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, 0),
0, GL_LUMINANCE, GL_UNSIGNED_BYTE,
GST_VIDEO_FRAME_PLANE_DATA (&vframe, 0));
stride = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 1);
stride_width = c_w = GST_VIDEO_FRAME_COMP_WIDTH (&vframe, 1);
glActiveTexture (GL_TEXTURE1);
if (GST_ROUND_UP_8 (c_w * 2) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (c_w * 2) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (c_w * 2 == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else {
stride_width = stride / 2;
if (GST_ROUND_UP_8 (stride_width * 2) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
} else if (GST_ROUND_UP_4 (stride_width * 2) == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
} else if (stride_width * 2 == stride) {
glPixelStorei (GL_UNPACK_ALIGNMENT, 2);
} else {
GST_ERROR_OBJECT (eglglessink, "Unsupported stride %d", stride);
goto HANDLE_ERROR;
}
}
if (got_gl_error ("glPixelStorei"))
goto HANDLE_ERROR;
eglglessink->stride[1] = ((gdouble) stride_width) / ((gdouble) c_w);
glBindTexture (GL_TEXTURE_2D, eglglessink->eglglesctx.texture[1]);
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA,
stride_width,
GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, 1),
0, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE,
GST_VIDEO_FRAME_PLANE_DATA (&vframe, 1));
break;
}
default:
g_assert_not_reached ();
break;
}
if (got_gl_error ("glTexImage2D"))
goto HANDLE_ERROR;
gst_video_frame_unmap (&vframe);
return TRUE;
HANDLE_ERROR:
{
if (vframe.buffer)
gst_video_frame_unmap (&vframe);
return FALSE;
}
}
/* Rendering and display */
static GstFlowReturn
gst_eglglessink_upload (GstEglGlesSink * eglglessink, GstBuffer * buf)
{
GstVideoCropMeta *crop = NULL;
if (!buf) {
GST_DEBUG_OBJECT (eglglessink, "Rendering previous buffer again");
} else if (buf) {
GstMemory *mem;
GstVideoGLTextureUploadMeta *upload_meta;
crop = gst_buffer_get_video_crop_meta (buf);
upload_meta = gst_buffer_get_video_gl_texture_upload_meta (buf);
if (gst_eglglessink_crop_changed (eglglessink, crop)) {
if (crop) {
eglglessink->crop.x = crop->x;
eglglessink->crop.y = crop->y;
eglglessink->crop.w = crop->width;
eglglessink->crop.h = crop->height;
} else {
eglglessink->crop.x = 0;
eglglessink->crop.y = 0;
eglglessink->crop.w = eglglessink->configured_info.width;
eglglessink->crop.h = eglglessink->configured_info.height;
}
eglglessink->crop_changed = TRUE;
}
if (upload_meta) {
glActiveTexture (GL_TEXTURE0);
glBindTexture (GL_TEXTURE_2D,
eglglessink->eglglesctx.texture[eglglessink->eglglesctx.n_textures]);
if (!gst_video_gl_texture_upload_meta_upload (upload_meta, GL_RGBA,
eglglessink->eglglesctx.texture[eglglessink->
eglglesctx.n_textures]))
goto HANDLE_ERROR;
eglglessink->orientation = GST_EGL_IMAGE_ORIENTATION_X_NORMAL_Y_NORMAL;
eglglessink->custom_format = TRUE;
} else if (gst_buffer_n_memory (buf) >= 1 &&
(mem = gst_buffer_peek_memory (buf, 0))
&& gst_is_egl_image_memory (mem)) {
guint n, i;
eglglessink->custom_format = FALSE;
n = gst_buffer_n_memory (buf);
for (i = 0; i < n; i++) {
mem = gst_buffer_peek_memory (buf, i);
g_assert (gst_is_egl_image_memory (mem));
if (i == 0)
glActiveTexture (GL_TEXTURE0);
else if (i == 1)
glActiveTexture (GL_TEXTURE1);
else if (i == 2)
glActiveTexture (GL_TEXTURE2);
glBindTexture (GL_TEXTURE_2D, eglglessink->eglglesctx.texture[i]);
glEGLImageTargetTexture2DOES (GL_TEXTURE_2D,
gst_egl_image_memory_get_image (mem));
if (got_gl_error ("glEGLImageTargetTexture2DOES"))
goto HANDLE_ERROR;
eglglessink->orientation = gst_egl_image_memory_get_orientation (mem);
if (eglglessink->orientation !=
GST_EGL_IMAGE_ORIENTATION_X_NORMAL_Y_NORMAL
&& eglglessink->orientation !=
GST_EGL_IMAGE_ORIENTATION_X_NORMAL_Y_FLIP) {
GST_ERROR_OBJECT (eglglessink, "Unsupported EGLImage orientation");
return GST_FLOW_ERROR;
}
}
gst_buffer_replace (&eglglessink->last_buffer, buf);
eglglessink->stride[0] = 1;
eglglessink->stride[1] = 1;
eglglessink->stride[2] = 1;
} else {
eglglessink->custom_format = FALSE;
eglglessink->orientation = GST_EGL_IMAGE_ORIENTATION_X_NORMAL_Y_NORMAL;
if (!gst_eglglessink_fill_texture (eglglessink, buf))
goto HANDLE_ERROR;
}
}
return GST_FLOW_OK;
HANDLE_ERROR:
{
GST_ERROR_OBJECT (eglglessink, "Failed to upload texture");
return GST_FLOW_ERROR;
}
}
static GstFlowReturn
gst_eglglessink_render (GstEglGlesSink * eglglessink)
{
guint dar_n, dar_d;
gint i;
/* If no one has set a display rectangle on us initialize
* a sane default. According to the docs on the xOverlay
* interface we are supposed to fill the overlay 100%. We
* do this trying to take PAR/DAR into account unless the
* calling party explicitly ask us not to by setting
* force_aspect_ratio to FALSE.
*/
if (gst_eglglessink_update_surface_dimensions (eglglessink) ||
eglglessink->render_region_changed ||
!eglglessink->display_region.w || !eglglessink->display_region.h ||
eglglessink->crop_changed) {
GST_OBJECT_LOCK (eglglessink);
if (!eglglessink->render_region_user) {
eglglessink->render_region.x = 0;
eglglessink->render_region.y = 0;
eglglessink->render_region.w = eglglessink->eglglesctx.surface_width;
eglglessink->render_region.h = eglglessink->eglglesctx.surface_height;
}
eglglessink->render_region_changed = FALSE;
eglglessink->crop_changed = FALSE;
if (!eglglessink->force_aspect_ratio) {
eglglessink->display_region.x = 0;
eglglessink->display_region.y = 0;
eglglessink->display_region.w = eglglessink->render_region.w;
eglglessink->display_region.h = eglglessink->render_region.h;
} else {
GstVideoRectangle frame;
frame.x = 0;
frame.y = 0;
if (!gst_video_calculate_display_ratio (&dar_n, &dar_d,
eglglessink->crop.w, eglglessink->crop.h,
eglglessink->configured_info.par_n,
eglglessink->configured_info.par_d,
eglglessink->eglglesctx.pixel_aspect_ratio,
EGL_DISPLAY_SCALING)) {
GST_WARNING_OBJECT (eglglessink, "Could not compute resulting DAR");
frame.w = eglglessink->crop.w;
frame.h = eglglessink->crop.h;
} else {
/* Find suitable matching new size acording to dar & par
* rationale for prefering leaving the height untouched
* comes from interlacing considerations.
* XXX: Move this to gstutils?
*/
if (eglglessink->crop.h % dar_d == 0) {
frame.w =
gst_util_uint64_scale_int (eglglessink->crop.h, dar_n, dar_d);
frame.h = eglglessink->crop.h;
} else if (eglglessink->crop.w % dar_n == 0) {
frame.h =
gst_util_uint64_scale_int (eglglessink->crop.w, dar_d, dar_n);
frame.w = eglglessink->crop.w;
} else {
/* Neither width nor height can be precisely scaled.
* Prefer to leave height untouched. See comment above.
*/
frame.w =
gst_util_uint64_scale_int (eglglessink->crop.h, dar_n, dar_d);
frame.h = eglglessink->crop.h;
}
}
gst_video_sink_center_rect (frame, eglglessink->render_region,
&eglglessink->display_region, TRUE);
}
glViewport (eglglessink->render_region.x,
eglglessink->eglglesctx.surface_height -
eglglessink->render_region.y -
eglglessink->render_region.h,
eglglessink->render_region.w, eglglessink->render_region.h);
/* Clear the surface once if its content is preserved */
if (eglglessink->eglglesctx.buffer_preserved) {
glClearColor (0.0, 0.0, 0.0, 1.0);
glClear (GL_COLOR_BUFFER_BIT);
}
if (!gst_eglglessink_setup_vbo (eglglessink, FALSE)) {
GST_OBJECT_UNLOCK (eglglessink);
GST_ERROR_OBJECT (eglglessink, "VBO setup failed");
goto HANDLE_ERROR;
}
GST_OBJECT_UNLOCK (eglglessink);
}
if (!eglglessink->eglglesctx.buffer_preserved) {
/* Draw black borders */
GST_DEBUG_OBJECT (eglglessink, "Drawing black border 1");
glUseProgram (eglglessink->eglglesctx.glslprogram[1]);
glVertexAttribPointer (eglglessink->eglglesctx.position_loc[1], 3,
GL_FLOAT, GL_FALSE, sizeof (coord5), (gpointer) (8 * sizeof (coord5)));
if (got_gl_error ("glVertexAttribPointer"))
goto HANDLE_ERROR;
glDrawElements (GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_SHORT, 0);
if (got_gl_error ("glDrawElements"))
goto HANDLE_ERROR;
GST_DEBUG_OBJECT (eglglessink, "Drawing black border 2");
glVertexAttribPointer (eglglessink->eglglesctx.position_loc[1], 3,
GL_FLOAT, GL_FALSE, sizeof (coord5), (gpointer) (12 * sizeof (coord5)));
if (got_gl_error ("glVertexAttribPointer"))
goto HANDLE_ERROR;
glDrawElements (GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_SHORT, 0);
if (got_gl_error ("glDrawElements"))
goto HANDLE_ERROR;
}
/* Draw video frame */
GST_DEBUG_OBJECT (eglglessink, "Drawing video frame");
if (eglglessink->custom_format) {
glUseProgram (eglglessink->eglglesctx.glslprogram[2]);
glUniform1i (eglglessink->eglglesctx.tex_loc[1][0], 0);
if (got_gl_error ("glUniform1i"))
goto HANDLE_ERROR;
glVertexAttribPointer (eglglessink->eglglesctx.position_loc[2], 3,
GL_FLOAT, GL_FALSE, sizeof (coord5), (gpointer) (0));
if (got_gl_error ("glVertexAttribPointer"))
goto HANDLE_ERROR;
glVertexAttribPointer (eglglessink->eglglesctx.texpos_loc[1], 2,
GL_FLOAT, GL_FALSE, sizeof (coord5), (gpointer) (3 * sizeof (gfloat)));
if (got_gl_error ("glVertexAttribPointer"))
goto HANDLE_ERROR;
} else {
glUseProgram (eglglessink->eglglesctx.glslprogram[0]);
glUniform2f (eglglessink->eglglesctx.tex_scale_loc[0][0],
eglglessink->stride[0], 1);
glUniform2f (eglglessink->eglglesctx.tex_scale_loc[0][1],
eglglessink->stride[1], 1);
glUniform2f (eglglessink->eglglesctx.tex_scale_loc[0][2],
eglglessink->stride[2], 1);
for (i = 0; i < eglglessink->eglglesctx.n_textures; i++) {
glUniform1i (eglglessink->eglglesctx.tex_loc[0][i], i);
if (got_gl_error ("glUniform1i"))
goto HANDLE_ERROR;
}
if (eglglessink->orientation == GST_EGL_IMAGE_ORIENTATION_X_NORMAL_Y_NORMAL) {
glVertexAttribPointer (eglglessink->eglglesctx.position_loc[0], 3,
GL_FLOAT, GL_FALSE, sizeof (coord5),
(gpointer) (0 * sizeof (coord5)));
if (got_gl_error ("glVertexAttribPointer"))
goto HANDLE_ERROR;
glVertexAttribPointer (eglglessink->eglglesctx.texpos_loc[0], 2,
GL_FLOAT, GL_FALSE, sizeof (coord5),
(gpointer) (3 * sizeof (gfloat)));
if (got_gl_error ("glVertexAttribPointer"))
goto HANDLE_ERROR;
} else if (eglglessink->orientation ==
GST_EGL_IMAGE_ORIENTATION_X_NORMAL_Y_FLIP) {
glVertexAttribPointer (eglglessink->eglglesctx.position_loc[0], 3,
GL_FLOAT, GL_FALSE, sizeof (coord5),
(gpointer) (4 * sizeof (coord5)));
if (got_gl_error ("glVertexAttribPointer"))
goto HANDLE_ERROR;
glVertexAttribPointer (eglglessink->eglglesctx.texpos_loc[0], 2,
GL_FLOAT, GL_FALSE, sizeof (coord5),
(gpointer) (4 * sizeof (coord5) + 3 * sizeof (gfloat)));
if (got_gl_error ("glVertexAttribPointer"))
goto HANDLE_ERROR;
} else {
g_assert_not_reached ();
}
}
glDrawElements (GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_SHORT, 0);
if (got_gl_error ("glDrawElements"))
goto HANDLE_ERROR;
if ((eglSwapBuffers (gst_egl_display_get (eglglessink->eglglesctx.display),
eglglessink->eglglesctx.surface))
== EGL_FALSE) {
got_egl_error ("eglSwapBuffers");
goto HANDLE_ERROR;
}
GST_DEBUG_OBJECT (eglglessink, "Succesfully rendered 1 frame");
return GST_FLOW_OK;
HANDLE_ERROR:
GST_ERROR_OBJECT (eglglessink, "Rendering disabled for this frame");
return GST_FLOW_ERROR;
}
static GstFlowReturn
gst_eglglessink_prepare (GstBaseSink * bsink, GstBuffer * buf)
{
GstEglGlesSink *eglglessink;
g_return_val_if_fail (buf != NULL, GST_FLOW_ERROR);
eglglessink = GST_EGLGLESSINK (bsink);
GST_DEBUG_OBJECT (eglglessink, "Got buffer: %p", buf);
return gst_eglglessink_queue_object (eglglessink, GST_MINI_OBJECT_CAST (buf));
}
static GstFlowReturn
gst_eglglessink_show_frame (GstVideoSink * vsink, GstBuffer * buf)
{
GstEglGlesSink *eglglessink;
g_return_val_if_fail (buf != NULL, GST_FLOW_ERROR);
eglglessink = GST_EGLGLESSINK (vsink);
GST_DEBUG_OBJECT (eglglessink, "Got buffer: %p", buf);
return gst_eglglessink_queue_object (eglglessink, NULL);
}
static GstCaps *
gst_eglglessink_getcaps (GstBaseSink * bsink, GstCaps * filter)
{
GstEglGlesSink *eglglessink;
GstCaps *ret = NULL;
eglglessink = GST_EGLGLESSINK (bsink);
GST_OBJECT_LOCK (eglglessink);
if (eglglessink->sinkcaps) {
ret = gst_caps_ref (eglglessink->sinkcaps);
} else {
ret =
gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD
(bsink)));
}
GST_OBJECT_UNLOCK (eglglessink);
if (filter) {
GstCaps *tmp =
gst_caps_intersect_full (filter, ret, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (ret);
ret = tmp;
}
return ret;
}
static gboolean
gst_eglglessink_event (GstBaseSink * bsink, GstEvent * event)
{
GstEglGlesSink *eglglessink;
eglglessink = GST_EGLGLESSINK (bsink);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CONTEXT:{
GstContext *context;
GstEGLDisplay *display;
gst_event_parse_context (event, &context);
if (gst_context_get_egl_display (context, &display)) {
GST_OBJECT_LOCK (eglglessink);
if (eglglessink->eglglesctx.set_display)
gst_egl_display_unref (eglglessink->eglglesctx.set_display);
eglglessink->eglglesctx.set_display = display;
GST_OBJECT_UNLOCK (eglglessink);
}
return GST_BASE_SINK_CLASS (gst_eglglessink_parent_class)->event (bsink,
event);
break;
}
default:
return GST_BASE_SINK_CLASS (gst_eglglessink_parent_class)->event (bsink,
event);
break;
}
}
static gboolean
gst_eglglessink_query (GstBaseSink * bsink, GstQuery * query)
{
GstEglGlesSink *eglglessink;
eglglessink = GST_EGLGLESSINK (bsink);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:{
guint i, n;
GST_BASE_SINK_CLASS (gst_eglglessink_parent_class)->query (bsink, query);
n = gst_query_get_n_context_types (query);
for (i = 0; i < n; i++) {
const gchar *context_type = NULL;
gst_query_parse_nth_context_type (query, i, &context_type);
if (g_strcmp0 (context_type, GST_EGL_DISPLAY_CONTEXT_TYPE) == 0) {
GstContext *context, *old_context;
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new ();
gst_context_set_egl_display (context,
eglglessink->eglglesctx.display);
gst_query_set_context (query, context);
break;
}
}
return TRUE;
break;
}
default:
return GST_BASE_SINK_CLASS (gst_eglglessink_parent_class)->query (bsink,
query);
break;
}
}
static void
gst_eglglessink_set_context (GstElement * element, GstContext * context)
{
GstEglGlesSink *eglglessink;
GstEGLDisplay *display = NULL;
eglglessink = GST_EGLGLESSINK (element);
if (gst_context_get_egl_display (context, &display)) {
GST_OBJECT_LOCK (eglglessink);
if (eglglessink->eglglesctx.set_display)
gst_egl_display_unref (eglglessink->eglglesctx.set_display);
eglglessink->eglglesctx.set_display = display;
GST_OBJECT_UNLOCK (eglglessink);
}
GST_OBJECT_LOCK (eglglessink);
context = gst_context_make_writable (context);
gst_context_set_egl_display (context, eglglessink->eglglesctx.display);
GST_OBJECT_UNLOCK (eglglessink);
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
static gboolean
gst_eglglessink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
{
GstEglGlesSink *eglglessink;
GstBufferPool *pool;
GstStructure *config;
GstCaps *caps;
GstVideoInfo info;
gboolean need_pool;
guint size;
GstAllocator *allocator;
GstAllocationParams params;
eglglessink = GST_EGLGLESSINK (bsink);
gst_allocation_params_init (&params);
gst_query_parse_allocation (query, &caps, &need_pool);
if (!caps) {
GST_ERROR_OBJECT (eglglessink, "allocation query without caps");
return FALSE;
}
if (!gst_video_info_from_caps (&info, caps)) {
GST_ERROR_OBJECT (eglglessink, "allocation query with invalid caps");
return FALSE;
}
GST_OBJECT_LOCK (eglglessink);
pool = eglglessink->pool ? gst_object_ref (eglglessink->pool) : NULL;
GST_OBJECT_UNLOCK (eglglessink);
if (pool) {
GstCaps *pcaps;
/* we had a pool, check caps */
GST_DEBUG_OBJECT (eglglessink, "check existing pool caps");
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, &pcaps, &size, NULL, NULL);
if (!gst_caps_is_equal (caps, pcaps)) {
GST_DEBUG_OBJECT (eglglessink, "pool has different caps");
/* different caps, we can't use this pool */
gst_object_unref (pool);
pool = NULL;
}
gst_structure_free (config);
}
if (pool == NULL && need_pool) {
GstVideoInfo info;
if (!gst_video_info_from_caps (&info, caps)) {
GST_ERROR_OBJECT (eglglessink, "allocation query has invalid caps %"
GST_PTR_FORMAT, caps);
return FALSE;
}
GST_DEBUG_OBJECT (eglglessink, "create new pool");
pool =
gst_egl_image_buffer_pool_new (eglglessink,
eglglessink->eglglesctx.display);
/* the normal size of a frame */
size = info.size;
config = gst_buffer_pool_get_config (pool);
/* we need at least 2 buffer because we hold on to the last one */
gst_buffer_pool_config_set_params (config, caps, size, 2, 0);
gst_buffer_pool_config_set_allocator (config, NULL, &params);
if (!gst_buffer_pool_set_config (pool, config)) {
gst_object_unref (pool);
GST_ERROR_OBJECT (eglglessink, "failed to set pool configuration");
return FALSE;
}
}
if (pool) {
/* we need at least 2 buffer because we hold on to the last one */
gst_query_add_allocation_pool (query, pool, size, 2, 0);
gst_object_unref (pool);
}
/* First the default allocator */
if (!gst_egl_image_memory_is_mappable ()) {
allocator = gst_allocator_find (NULL);
gst_query_add_allocation_param (query, allocator, &params);
gst_object_unref (allocator);
}
allocator = gst_egl_image_allocator_obtain ();
if (!gst_egl_image_memory_is_mappable ())
params.flags |= GST_MEMORY_FLAG_NOT_MAPPABLE;
gst_query_add_allocation_param (query, allocator, &params);
gst_object_unref (allocator);
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
gst_query_add_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE, NULL);
gst_query_add_allocation_meta (query,
GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, NULL);
return TRUE;
}
static gboolean
gst_eglglessink_configure_caps (GstEglGlesSink * eglglessink, GstCaps * caps)
{
gboolean ret = TRUE;
GstVideoInfo info;
gst_video_info_init (&info);
if (!(ret = gst_video_info_from_caps (&info, caps))) {
GST_ERROR_OBJECT (eglglessink, "Couldn't parse caps");
goto HANDLE_ERROR;
}
eglglessink->configured_info = info;
GST_VIDEO_SINK_WIDTH (eglglessink) = info.width;
GST_VIDEO_SINK_HEIGHT (eglglessink) = info.height;
if (eglglessink->configured_caps) {
GST_DEBUG_OBJECT (eglglessink, "Caps were already set");
if (gst_caps_can_intersect (caps, eglglessink->configured_caps)) {
GST_DEBUG_OBJECT (eglglessink, "Caps are compatible anyway");
goto SUCCEED;
}
GST_DEBUG_OBJECT (eglglessink, "Caps are not compatible, reconfiguring");
/* EGL/GLES cleanup */
gst_eglglessink_wipe_eglglesctx (eglglessink);
gst_caps_unref (eglglessink->configured_caps);
eglglessink->configured_caps = NULL;
}
if (!gst_eglglessink_choose_config (eglglessink)) {
GST_ERROR_OBJECT (eglglessink, "Couldn't choose EGL config");
goto HANDLE_ERROR;
}
gst_caps_replace (&eglglessink->configured_caps, caps);
/* By now the application should have set a window
* if it meant to do so
*/
GST_OBJECT_LOCK (eglglessink);
if (!eglglessink->have_window) {
EGLNativeWindowType window;
GST_INFO_OBJECT (eglglessink,
"No window. Will attempt internal window creation");
if (!(window =
gst_eglglessink_create_window (eglglessink, info.width,
info.height))) {
GST_ERROR_OBJECT (eglglessink, "Internal window creation failed!");
GST_OBJECT_UNLOCK (eglglessink);
goto HANDLE_ERROR;
}
eglglessink->using_own_window = TRUE;
eglglessink->eglglesctx.window = window;
eglglessink->have_window = TRUE;
}
GST_DEBUG_OBJECT (eglglessink, "Using window handle %p",
eglglessink->eglglesctx.window);
eglglessink->eglglesctx.used_window = eglglessink->eglglesctx.window;
GST_OBJECT_UNLOCK (eglglessink);
gst_video_overlay_got_window_handle (GST_VIDEO_OVERLAY (eglglessink),
(guintptr) eglglessink->eglglesctx.used_window);
if (!eglglessink->have_surface) {
if (!gst_eglglessink_init_egl_surface (eglglessink)) {
GST_ERROR_OBJECT (eglglessink, "Couldn't init EGL surface from window");
goto HANDLE_ERROR;
}
}
SUCCEED:
GST_INFO_OBJECT (eglglessink, "Configured caps successfully");
return TRUE;
HANDLE_ERROR:
GST_ERROR_OBJECT (eglglessink, "Configuring caps failed");
return FALSE;
}
static gboolean
gst_eglglessink_setcaps (GstBaseSink * bsink, GstCaps * caps)
{
GstEglGlesSink *eglglessink;
GstVideoInfo info;
GstBufferPool *newpool, *oldpool;
GstStructure *config;
GstAllocationParams params = { 0, };
eglglessink = GST_EGLGLESSINK (bsink);
GST_DEBUG_OBJECT (eglglessink,
"Current caps %" GST_PTR_FORMAT ", setting caps %"
GST_PTR_FORMAT, eglglessink->current_caps, caps);
if (gst_eglglessink_queue_object (eglglessink,
GST_MINI_OBJECT_CAST (caps)) != GST_FLOW_OK) {
GST_ERROR_OBJECT (eglglessink, "Failed to configure caps");
return FALSE;
}
if (!gst_video_info_from_caps (&info, caps)) {
GST_ERROR_OBJECT (eglglessink, "Invalid caps %" GST_PTR_FORMAT, caps);
return FALSE;
}
newpool =
gst_egl_image_buffer_pool_new (eglglessink,
eglglessink->eglglesctx.display);
config = gst_buffer_pool_get_config (newpool);
/* we need at least 2 buffer because we hold on to the last one */
gst_buffer_pool_config_set_params (config, caps, info.size, 2, 0);
gst_buffer_pool_config_set_allocator (config, NULL, &params);
if (!gst_buffer_pool_set_config (newpool, config)) {
gst_object_unref (newpool);
GST_ERROR_OBJECT (eglglessink, "Failed to set buffer pool configuration");
return FALSE;
}
GST_OBJECT_LOCK (eglglessink);
oldpool = eglglessink->pool;
eglglessink->pool = newpool;
GST_OBJECT_UNLOCK (eglglessink);
if (oldpool)
gst_object_unref (oldpool);
gst_caps_replace (&eglglessink->current_caps, caps);
return TRUE;
}
static gboolean
gst_eglglessink_open (GstEglGlesSink * eglglessink)
{
if (!egl_init (eglglessink)) {
return FALSE;
}
return TRUE;
}
static gboolean
gst_eglglessink_close (GstEglGlesSink * eglglessink)
{
if (eglglessink->eglglesctx.display) {
gst_egl_display_unref (eglglessink->eglglesctx.display);
eglglessink->eglglesctx.display = NULL;
}
gst_caps_unref (eglglessink->sinkcaps);
eglglessink->sinkcaps = NULL;
eglglessink->egl_started = FALSE;
GST_OBJECT_LOCK (eglglessink);
if (eglglessink->pool)
gst_object_unref (eglglessink->pool);
eglglessink->pool = NULL;
GST_OBJECT_UNLOCK (eglglessink);
return TRUE;
}
static GstStateChangeReturn
gst_eglglessink_change_state (GstElement * element, GstStateChange transition)
{
GstEglGlesSink *eglglessink;
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
eglglessink = GST_EGLGLESSINK (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!gst_eglglessink_open (eglglessink)) {
ret = GST_STATE_CHANGE_FAILURE;
goto done;
}
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (!gst_eglglessink_start (eglglessink)) {
ret = GST_STATE_CHANGE_FAILURE;
goto done;
}
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
if (!gst_eglglessink_close (eglglessink)) {
ret = GST_STATE_CHANGE_FAILURE;
goto done;
}
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (!gst_eglglessink_stop (eglglessink)) {
ret = GST_STATE_CHANGE_FAILURE;
goto done;
}
break;
default:
break;
}
done:
return ret;
}
static void
gst_eglglessink_finalize (GObject * object)
{
GstEglGlesSink *eglglessink;
g_return_if_fail (GST_IS_EGLGLESSINK (object));
eglglessink = GST_EGLGLESSINK (object);
if (eglglessink->queue)
g_object_unref (eglglessink->queue);
eglglessink->queue = NULL;
g_cond_clear (&eglglessink->render_cond);
g_mutex_clear (&eglglessink->render_lock);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_eglglessink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstEglGlesSink *eglglessink;
g_return_if_fail (GST_IS_EGLGLESSINK (object));
eglglessink = GST_EGLGLESSINK (object);
switch (prop_id) {
case PROP_CREATE_WINDOW:
eglglessink->create_window = g_value_get_boolean (value);
break;
case PROP_FORCE_ASPECT_RATIO:
eglglessink->force_aspect_ratio = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_eglglessink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstEglGlesSink *eglglessink;
g_return_if_fail (GST_IS_EGLGLESSINK (object));
eglglessink = GST_EGLGLESSINK (object);
switch (prop_id) {
case PROP_CREATE_WINDOW:
g_value_set_boolean (value, eglglessink->create_window);
break;
case PROP_FORCE_ASPECT_RATIO:
g_value_set_boolean (value, eglglessink->force_aspect_ratio);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* initialize the eglglessink's class */
static void
gst_eglglessink_class_init (GstEglGlesSinkClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSinkClass *gstbasesink_class;
GstVideoSinkClass *gstvideosink_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasesink_class = (GstBaseSinkClass *) klass;
gstvideosink_class = (GstVideoSinkClass *) klass;
gobject_class->set_property = gst_eglglessink_set_property;
gobject_class->get_property = gst_eglglessink_get_property;
gobject_class->finalize = gst_eglglessink_finalize;
gstelement_class->change_state = gst_eglglessink_change_state;
gstelement_class->set_context = gst_eglglessink_set_context;
gstbasesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_eglglessink_setcaps);
gstbasesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_eglglessink_getcaps);
gstbasesink_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_eglglessink_propose_allocation);
gstbasesink_class->prepare = GST_DEBUG_FUNCPTR (gst_eglglessink_prepare);
gstbasesink_class->query = GST_DEBUG_FUNCPTR (gst_eglglessink_query);
gstbasesink_class->event = GST_DEBUG_FUNCPTR (gst_eglglessink_event);
gstvideosink_class->show_frame =
GST_DEBUG_FUNCPTR (gst_eglglessink_show_frame);
g_object_class_install_property (gobject_class, PROP_CREATE_WINDOW,
g_param_spec_boolean ("create-window", "Create Window",
"If set to true, the sink will attempt to create it's own window to "
"render to if none is provided. This is currently only supported "
"when the sink is used under X11",
TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_FORCE_ASPECT_RATIO,
g_param_spec_boolean ("force-aspect-ratio",
"Respect aspect ratio when scaling",
"If set to true, the sink will attempt to preserve the incoming "
"frame's geometry while scaling, taking both the storage's and "
"display's pixel aspect ratio into account",
TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_static_metadata (gstelement_class,
"EGL/GLES vout Sink",
"Sink/Video",
"An EGL/GLES Video Output Sink Implementing the VideoOverlay interface",
"Reynaldo H. Verdejo Pinochet <reynaldo@collabora.com>, "
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_eglglessink_sink_template_factory));
}
static gboolean
queue_check_full_func (GstDataQueue * queue, guint visible, guint bytes,
guint64 time, gpointer checkdata)
{
return visible != 0;
}
static void
gst_eglglessink_init (GstEglGlesSink * eglglessink)
{
/* Init defaults */
/** Flags */
eglglessink->have_window = FALSE;
eglglessink->have_surface = FALSE;
eglglessink->have_vbo = FALSE;
eglglessink->have_texture = FALSE;
eglglessink->egl_started = FALSE;
eglglessink->using_own_window = FALSE;
/** Props */
eglglessink->create_window = TRUE;
eglglessink->force_aspect_ratio = TRUE;
g_mutex_init (&eglglessink->render_lock);
g_cond_init (&eglglessink->render_cond);
eglglessink->queue =
gst_data_queue_new (queue_check_full_func, NULL, NULL, NULL);
eglglessink->last_flow = GST_FLOW_FLUSHING;
eglglessink->render_region.x = 0;
eglglessink->render_region.y = 0;
eglglessink->render_region.w = -1;
eglglessink->render_region.h = -1;
eglglessink->render_region_changed = TRUE;
eglglessink->render_region_user = FALSE;
}
/* EGLImage memory, buffer pool, etc */
typedef struct
{
GstVideoBufferPool parent;
GstEglGlesSink *sink;
GstAllocator *allocator;
GstAllocationParams params;
GstVideoInfo info;
gboolean add_metavideo;
gboolean want_eglimage;
GstEGLDisplay *display;
} GstEGLImageBufferPool;
typedef GstVideoBufferPoolClass GstEGLImageBufferPoolClass;
#define GST_EGL_IMAGE_BUFFER_POOL(p) ((GstEGLImageBufferPool*)(p))
GType gst_egl_image_buffer_pool_get_type (void);
typedef struct
{
GLuint texture;
} GstEGLGLESImageData;
static void
gst_egl_gles_image_data_free (GstEGLGLESImageData * data)
{
glDeleteTextures (1, &data->texture);
g_slice_free (GstEGLGLESImageData, data);
}
static GstBuffer *
gst_eglglessink_allocate_eglimage (GstEglGlesSink * eglglessink,
GstVideoFormat format, gint width, gint height)
{
GstEGLGLESImageData *data = NULL;
GstBuffer *buffer;
GstVideoInfo info;
gint i;
gint stride[3];
gsize offset[3];
GstMemory *mem[3] = { NULL, NULL, NULL };
guint n_mem;
GstMemoryFlags flags = 0;
memset (stride, 0, sizeof (stride));
memset (offset, 0, sizeof (offset));
if (!gst_egl_image_memory_is_mappable ())
flags |= GST_MEMORY_FLAG_NOT_MAPPABLE;
/* See https://bugzilla.gnome.org/show_bug.cgi?id=695203 */
flags |= GST_MEMORY_FLAG_NO_SHARE;
gst_video_info_set_format (&info, format, width, height);
switch (format) {
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:{
gsize size;
EGLImageKHR image;
mem[0] =
gst_egl_image_allocator_alloc (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
GST_EGL_IMAGE_MEMORY_TYPE_RGB, GST_VIDEO_INFO_WIDTH (&info),
GST_VIDEO_INFO_HEIGHT (&info), &size);
if (mem[0]) {
stride[0] = size / GST_VIDEO_INFO_HEIGHT (&info);
n_mem = 1;
GST_MINI_OBJECT_FLAG_SET (mem[0], GST_MEMORY_FLAG_NO_SHARE);
} else {
data = g_slice_new0 (GstEGLGLESImageData);
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_WIDTH (&info) * 3);
size = stride[0] * GST_VIDEO_INFO_HEIGHT (&info);
glGenTextures (1, &data->texture);
if (got_gl_error ("glGenTextures"))
goto mem_error;
glBindTexture (GL_TEXTURE_2D, data->texture);
if (got_gl_error ("glBindTexture"))
goto mem_error;
/* Set 2D resizing params */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
/* If these are not set the texture image unit will return
* * (R, G, B, A) = black on glTexImage2D for non-POT width/height
* * frames. For a deeper explanation take a look at the OpenGL ES
* * documentation for glTexParameter */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (got_gl_error ("glTexParameteri"))
goto mem_error;
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGB,
GST_VIDEO_INFO_WIDTH (&info),
GST_VIDEO_INFO_HEIGHT (&info), 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
if (got_gl_error ("glTexImage2D"))
goto mem_error;
image =
eglCreateImageKHR (gst_egl_display_get (eglglessink->
eglglesctx.display), eglglessink->eglglesctx.eglcontext,
EGL_GL_TEXTURE_2D_KHR, (EGLClientBuffer) (guintptr) data->texture,
NULL);
if (got_egl_error ("eglCreateImageKHR"))
goto mem_error;
mem[0] =
gst_egl_image_allocator_wrap (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
image, GST_EGL_IMAGE_MEMORY_TYPE_RGB,
flags, size, data, (GDestroyNotify) gst_egl_gles_image_data_free);
n_mem = 1;
}
break;
}
case GST_VIDEO_FORMAT_RGB16:{
EGLImageKHR image;
gsize size;
mem[0] =
gst_egl_image_allocator_alloc (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
GST_EGL_IMAGE_MEMORY_TYPE_RGB, GST_VIDEO_INFO_WIDTH (&info),
GST_VIDEO_INFO_HEIGHT (&info), &size);
if (mem[0]) {
stride[0] = size / GST_VIDEO_INFO_HEIGHT (&info);
n_mem = 1;
GST_MINI_OBJECT_FLAG_SET (mem[0], GST_MEMORY_FLAG_NO_SHARE);
} else {
data = g_slice_new0 (GstEGLGLESImageData);
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_WIDTH (&info) * 2);
size = stride[0] * GST_VIDEO_INFO_HEIGHT (&info);
glGenTextures (1, &data->texture);
if (got_gl_error ("glGenTextures"))
goto mem_error;
glBindTexture (GL_TEXTURE_2D, data->texture);
if (got_gl_error ("glBindTexture"))
goto mem_error;
/* Set 2D resizing params */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
/* If these are not set the texture image unit will return
* * (R, G, B, A) = black on glTexImage2D for non-POT width/height
* * frames. For a deeper explanation take a look at the OpenGL ES
* * documentation for glTexParameter */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (got_gl_error ("glTexParameteri"))
goto mem_error;
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGB,
GST_VIDEO_INFO_WIDTH (&info),
GST_VIDEO_INFO_HEIGHT (&info), 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
NULL);
if (got_gl_error ("glTexImage2D"))
goto mem_error;
image =
eglCreateImageKHR (gst_egl_display_get (eglglessink->
eglglesctx.display), eglglessink->eglglesctx.eglcontext,
EGL_GL_TEXTURE_2D_KHR, (EGLClientBuffer) (guintptr) data->texture,
NULL);
if (got_egl_error ("eglCreateImageKHR"))
goto mem_error;
mem[0] =
gst_egl_image_allocator_wrap (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
image, GST_EGL_IMAGE_MEMORY_TYPE_RGB,
flags, size, data, (GDestroyNotify) gst_egl_gles_image_data_free);
n_mem = 1;
}
break;
}
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:{
EGLImageKHR image;
gsize size[2];
mem[0] =
gst_egl_image_allocator_alloc (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
GST_EGL_IMAGE_MEMORY_TYPE_LUMINANCE, GST_VIDEO_INFO_COMP_WIDTH (&info,
0), GST_VIDEO_INFO_COMP_HEIGHT (&info, 0), &size[0]);
mem[1] =
gst_egl_image_allocator_alloc (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
GST_EGL_IMAGE_MEMORY_TYPE_LUMINANCE_ALPHA,
GST_VIDEO_INFO_COMP_WIDTH (&info, 1),
GST_VIDEO_INFO_COMP_HEIGHT (&info, 1), &size[1]);
if (mem[0] && mem[1]) {
stride[0] = size[0] / GST_VIDEO_INFO_HEIGHT (&info);
offset[1] = size[0];
stride[1] = size[1] / GST_VIDEO_INFO_HEIGHT (&info);
n_mem = 2;
GST_MINI_OBJECT_FLAG_SET (mem[0], GST_MEMORY_FLAG_NO_SHARE);
GST_MINI_OBJECT_FLAG_SET (mem[1], GST_MEMORY_FLAG_NO_SHARE);
} else {
if (mem[0])
gst_memory_unref (mem[0]);
if (mem[1])
gst_memory_unref (mem[1]);
mem[0] = mem[1] = NULL;
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (&info, 0));
stride[1] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (&info, 1) * 2);
offset[1] = stride[0] * GST_VIDEO_INFO_COMP_HEIGHT (&info, 0);
size[0] = offset[1];
size[1] = stride[1] * GST_VIDEO_INFO_COMP_HEIGHT (&info, 1);
for (i = 0; i < 2; i++) {
data = g_slice_new0 (GstEGLGLESImageData);
glGenTextures (1, &data->texture);
if (got_gl_error ("glGenTextures"))
goto mem_error;
glBindTexture (GL_TEXTURE_2D, data->texture);
if (got_gl_error ("glBindTexture"))
goto mem_error;
/* Set 2D resizing params */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
/* If these are not set the texture image unit will return
* * (R, G, B, A) = black on glTexImage2D for non-POT width/height
* * frames. For a deeper explanation take a look at the OpenGL ES
* * documentation for glTexParameter */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (got_gl_error ("glTexParameteri"))
goto mem_error;
if (i == 0)
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE,
GST_VIDEO_INFO_COMP_WIDTH (&info, i),
GST_VIDEO_INFO_COMP_HEIGHT (&info, i), 0, GL_LUMINANCE,
GL_UNSIGNED_BYTE, NULL);
else
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA,
GST_VIDEO_INFO_COMP_WIDTH (&info, i),
GST_VIDEO_INFO_COMP_HEIGHT (&info, i), 0, GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE, NULL);
if (got_gl_error ("glTexImage2D"))
goto mem_error;
image =
eglCreateImageKHR (eglglessink->eglglesctx.display,
eglglessink->eglglesctx.eglcontext, EGL_GL_TEXTURE_2D_KHR,
(EGLClientBuffer) (guintptr) data->texture, NULL);
if (got_egl_error ("eglCreateImageKHR"))
goto mem_error;
mem[i] =
gst_egl_image_allocator_wrap (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
image,
(i ==
0 ? GST_EGL_IMAGE_MEMORY_TYPE_LUMINANCE :
GST_EGL_IMAGE_MEMORY_TYPE_LUMINANCE_ALPHA),
flags, size[i], data,
(GDestroyNotify) gst_egl_gles_image_data_free);
}
n_mem = 2;
}
break;
}
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_Y41B:{
EGLImageKHR image;
gsize size[3];
mem[0] =
gst_egl_image_allocator_alloc (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
GST_EGL_IMAGE_MEMORY_TYPE_LUMINANCE, GST_VIDEO_INFO_COMP_WIDTH (&info,
0), GST_VIDEO_INFO_COMP_HEIGHT (&info, 0), &size[0]);
mem[1] =
gst_egl_image_allocator_alloc (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
GST_EGL_IMAGE_MEMORY_TYPE_LUMINANCE, GST_VIDEO_INFO_COMP_WIDTH (&info,
1), GST_VIDEO_INFO_COMP_HEIGHT (&info, 1), &size[1]);
mem[2] =
gst_egl_image_allocator_alloc (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
GST_EGL_IMAGE_MEMORY_TYPE_LUMINANCE, GST_VIDEO_INFO_COMP_WIDTH (&info,
2), GST_VIDEO_INFO_COMP_HEIGHT (&info, 2), &size[2]);
if (mem[0] && mem[1] && mem[2]) {
stride[0] = size[0] / GST_VIDEO_INFO_HEIGHT (&info);
offset[1] = size[0];
stride[1] = size[1] / GST_VIDEO_INFO_HEIGHT (&info);
offset[2] = size[1];
stride[2] = size[2] / GST_VIDEO_INFO_HEIGHT (&info);
n_mem = 3;
GST_MINI_OBJECT_FLAG_SET (mem[0], GST_MEMORY_FLAG_NO_SHARE);
GST_MINI_OBJECT_FLAG_SET (mem[1], GST_MEMORY_FLAG_NO_SHARE);
GST_MINI_OBJECT_FLAG_SET (mem[2], GST_MEMORY_FLAG_NO_SHARE);
} else {
if (mem[0])
gst_memory_unref (mem[0]);
if (mem[1])
gst_memory_unref (mem[1]);
if (mem[2])
gst_memory_unref (mem[2]);
mem[0] = mem[1] = mem[2] = NULL;
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (&info, 0));
stride[1] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (&info, 1));
stride[2] = GST_ROUND_UP_4 (GST_VIDEO_INFO_COMP_WIDTH (&info, 2));
size[0] = stride[0] * GST_VIDEO_INFO_COMP_HEIGHT (&info, 0);
size[1] = stride[1] * GST_VIDEO_INFO_COMP_HEIGHT (&info, 1);
size[2] = stride[2] * GST_VIDEO_INFO_COMP_HEIGHT (&info, 2);
offset[0] = 0;
offset[1] = size[0];
offset[2] = offset[1] + size[1];
for (i = 0; i < 3; i++) {
data = g_slice_new0 (GstEGLGLESImageData);
glGenTextures (1, &data->texture);
if (got_gl_error ("glGenTextures"))
goto mem_error;
glBindTexture (GL_TEXTURE_2D, data->texture);
if (got_gl_error ("glBindTexture"))
goto mem_error;
/* Set 2D resizing params */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
/* If these are not set the texture image unit will return
* * (R, G, B, A) = black on glTexImage2D for non-POT width/height
* * frames. For a deeper explanation take a look at the OpenGL ES
* * documentation for glTexParameter */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (got_gl_error ("glTexParameteri"))
goto mem_error;
glTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE,
GST_VIDEO_INFO_COMP_WIDTH (&info, i),
GST_VIDEO_INFO_COMP_HEIGHT (&info, i), 0, GL_LUMINANCE,
GL_UNSIGNED_BYTE, NULL);
if (got_gl_error ("glTexImage2D"))
goto mem_error;
image =
eglCreateImageKHR (eglglessink->eglglesctx.display,
eglglessink->eglglesctx.eglcontext, EGL_GL_TEXTURE_2D_KHR,
(EGLClientBuffer) (guintptr) data->texture, NULL);
if (got_egl_error ("eglCreateImageKHR"))
goto mem_error;
mem[i] =
gst_egl_image_allocator_wrap (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
image, GST_EGL_IMAGE_MEMORY_TYPE_LUMINANCE,
flags, size[i], data,
(GDestroyNotify) gst_egl_gles_image_data_free);
}
n_mem = 3;
}
break;
}
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_AYUV:{
gsize size;
EGLImageKHR image;
mem[0] =
gst_egl_image_allocator_alloc (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
GST_EGL_IMAGE_MEMORY_TYPE_RGBA, GST_VIDEO_INFO_WIDTH (&info),
GST_VIDEO_INFO_HEIGHT (&info), &size);
if (mem[0]) {
stride[0] = size / GST_VIDEO_INFO_HEIGHT (&info);
n_mem = 1;
GST_MINI_OBJECT_FLAG_SET (mem[0], GST_MEMORY_FLAG_NO_SHARE);
} else {
data = g_slice_new0 (GstEGLGLESImageData);
stride[0] = GST_ROUND_UP_4 (GST_VIDEO_INFO_WIDTH (&info) * 4);
size = stride[0] * GST_VIDEO_INFO_HEIGHT (&info);
glGenTextures (1, &data->texture);
if (got_gl_error ("glGenTextures"))
goto mem_error;
glBindTexture (GL_TEXTURE_2D, data->texture);
if (got_gl_error ("glBindTexture"))
goto mem_error;
/* Set 2D resizing params */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
/* If these are not set the texture image unit will return
* * (R, G, B, A) = black on glTexImage2D for non-POT width/height
* * frames. For a deeper explanation take a look at the OpenGL ES
* * documentation for glTexParameter */
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (got_gl_error ("glTexParameteri"))
goto mem_error;
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA,
GST_VIDEO_INFO_WIDTH (&info),
GST_VIDEO_INFO_HEIGHT (&info), 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
if (got_gl_error ("glTexImage2D"))
goto mem_error;
image =
eglCreateImageKHR (gst_egl_display_get (eglglessink->
eglglesctx.display), eglglessink->eglglesctx.eglcontext,
EGL_GL_TEXTURE_2D_KHR, (EGLClientBuffer) (guintptr) data->texture,
NULL);
if (got_egl_error ("eglCreateImageKHR"))
goto mem_error;
mem[0] =
gst_egl_image_allocator_wrap (GST_EGL_IMAGE_BUFFER_POOL
(eglglessink->pool)->allocator, eglglessink->eglglesctx.display,
image, GST_EGL_IMAGE_MEMORY_TYPE_RGBA,
flags, size, data, (GDestroyNotify) gst_egl_gles_image_data_free);
n_mem = 1;
}
break;
}
default:
g_assert_not_reached ();
break;
}
buffer = gst_buffer_new ();
gst_buffer_add_video_meta_full (buffer, 0, format, width, height,
GST_VIDEO_INFO_N_PLANES (&info), offset, stride);
for (i = 0; i < n_mem; i++)
gst_buffer_append_memory (buffer, mem[i]);
return buffer;
mem_error:
{
GST_ERROR_OBJECT (eglglessink, "Failed to create EGLImage");
if (data)
gst_egl_gles_image_data_free (data);
if (mem[0])
gst_memory_unref (mem[0]);
if (mem[1])
gst_memory_unref (mem[1]);
if (mem[2])
gst_memory_unref (mem[2]);
return NULL;
}
}
G_DEFINE_TYPE (GstEGLImageBufferPool, gst_egl_image_buffer_pool,
GST_TYPE_VIDEO_BUFFER_POOL);
static const gchar **
gst_egl_image_buffer_pool_get_options (GstBufferPool * bpool)
{
static const gchar *options[] = { GST_BUFFER_POOL_OPTION_VIDEO_META, NULL
};
return options;
}
static gboolean
gst_egl_image_buffer_pool_set_config (GstBufferPool * bpool,
GstStructure * config)
{
GstEGLImageBufferPool *pool = GST_EGL_IMAGE_BUFFER_POOL (bpool);
GstCaps *caps;
GstVideoInfo info;
if (pool->allocator)
gst_object_unref (pool->allocator);
pool->allocator = NULL;
if (!GST_BUFFER_POOL_CLASS
(gst_egl_image_buffer_pool_parent_class)->set_config (bpool, config))
return FALSE;
if (!gst_buffer_pool_config_get_params (config, &caps, NULL, NULL, NULL)
|| !caps)
return FALSE;
if (!gst_video_info_from_caps (&info, caps))
return FALSE;
if (!gst_buffer_pool_config_get_allocator (config, &pool->allocator,
&pool->params))
return FALSE;
if (pool->allocator)
gst_object_ref (pool->allocator);
pool->add_metavideo =
gst_buffer_pool_config_has_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
pool->want_eglimage = (pool->allocator
&& g_strcmp0 (pool->allocator->mem_type, GST_EGL_IMAGE_MEMORY_TYPE) == 0);
pool->info = info;
return TRUE;
}
static GstFlowReturn
gst_egl_image_buffer_pool_alloc_buffer (GstBufferPool * bpool,
GstBuffer ** buffer, GstBufferPoolAcquireParams * params)
{
GstEGLImageBufferPool *pool = GST_EGL_IMAGE_BUFFER_POOL (bpool);
*buffer = NULL;
if (!pool->add_metavideo || !pool->want_eglimage)
return
GST_BUFFER_POOL_CLASS
(gst_egl_image_buffer_pool_parent_class)->alloc_buffer (bpool,
buffer, params);
if (!pool->allocator)
return GST_FLOW_NOT_NEGOTIATED;
switch (pool->info.finfo->format) {
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
case GST_VIDEO_FORMAT_RGB16:
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_Y41B:{
GstFlowReturn ret;
GstQuery *query;
GstStructure *s;
const GValue *v;
s = gst_structure_new ("eglglessink-allocate-eglimage",
"format", GST_TYPE_VIDEO_FORMAT, pool->info.finfo->format,
"width", G_TYPE_INT, pool->info.width,
"height", G_TYPE_INT, pool->info.height, NULL);
query = gst_query_new_custom (GST_QUERY_CUSTOM, s);
ret =
gst_eglglessink_queue_object (pool->sink,
GST_MINI_OBJECT_CAST (query));
if (ret != GST_FLOW_OK || !gst_structure_has_field (s, "buffer")) {
GST_WARNING ("Fallback memory allocation");
gst_query_unref (query);
return
GST_BUFFER_POOL_CLASS
(gst_egl_image_buffer_pool_parent_class)->alloc_buffer (bpool,
buffer, params);
}
v = gst_structure_get_value (s, "buffer");
*buffer = GST_BUFFER_CAST (g_value_get_pointer (v));
gst_query_unref (query);
if (!*buffer) {
GST_WARNING ("Fallback memory allocation");
return
GST_BUFFER_POOL_CLASS
(gst_egl_image_buffer_pool_parent_class)->alloc_buffer (bpool,
buffer, params);
}
return GST_FLOW_OK;
break;
}
default:
return
GST_BUFFER_POOL_CLASS
(gst_egl_image_buffer_pool_parent_class)->alloc_buffer (bpool,
buffer, params);
break;
}
return GST_FLOW_ERROR;
}
static GstFlowReturn
gst_egl_image_buffer_pool_acquire_buffer (GstBufferPool * bpool,
GstBuffer ** buffer, GstBufferPoolAcquireParams * params)
{
GstFlowReturn ret;
GstEGLImageBufferPool *pool;
ret =
GST_BUFFER_POOL_CLASS
(gst_egl_image_buffer_pool_parent_class)->acquire_buffer (bpool,
buffer, params);
if (ret != GST_FLOW_OK || !*buffer)
return ret;
pool = GST_EGL_IMAGE_BUFFER_POOL (bpool);
/* XXX: Don't return the memory we just rendered, glEGLImageTargetTexture2DOES()
* keeps the EGLImage unmappable until the next one is uploaded
*/
if (*buffer && *buffer == pool->sink->last_buffer) {
GstBuffer *oldbuf = *buffer;
ret =
GST_BUFFER_POOL_CLASS
(gst_egl_image_buffer_pool_parent_class)->acquire_buffer (bpool,
buffer, params);
gst_object_replace ((GstObject **) & oldbuf->pool, (GstObject *) pool);
gst_buffer_unref (oldbuf);
}
return ret;
}
static void
gst_egl_image_buffer_pool_finalize (GObject * object)
{
GstEGLImageBufferPool *pool = GST_EGL_IMAGE_BUFFER_POOL (object);
if (pool->allocator)
gst_object_unref (pool->allocator);
pool->allocator = NULL;
if (pool->sink)
gst_object_unref (pool->sink);
pool->sink = NULL;
if (pool->display)
gst_egl_display_unref (pool->display);
pool->display = NULL;
G_OBJECT_CLASS (gst_egl_image_buffer_pool_parent_class)->finalize (object);
}
static void
gst_egl_image_buffer_pool_class_init (GstEGLImageBufferPoolClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstBufferPoolClass *gstbufferpool_class = (GstBufferPoolClass *) klass;
gobject_class->finalize = gst_egl_image_buffer_pool_finalize;
gstbufferpool_class->get_options = gst_egl_image_buffer_pool_get_options;
gstbufferpool_class->set_config = gst_egl_image_buffer_pool_set_config;
gstbufferpool_class->alloc_buffer = gst_egl_image_buffer_pool_alloc_buffer;
gstbufferpool_class->acquire_buffer =
gst_egl_image_buffer_pool_acquire_buffer;
}
static void
gst_egl_image_buffer_pool_init (GstEGLImageBufferPool * pool)
{
}
static GstBufferPool *
gst_egl_image_buffer_pool_new (GstEglGlesSink *
eglglessink, GstEGLDisplay * display)
{
GstEGLImageBufferPool *pool;
pool = g_object_new (gst_egl_image_buffer_pool_get_type (), NULL);
pool->display = gst_egl_display_ref (display);
pool->sink = gst_object_ref (eglglessink);
return (GstBufferPool *) pool;
}
/* entry point to initialize the plug-in
* initialize the plug-in itself
* register the element factories and other features
*/
static gboolean
eglglessink_plugin_init (GstPlugin * plugin)
{
/* debug category for fltering log messages */
GST_DEBUG_CATEGORY_INIT (gst_eglglessink_debug, "eglglessink",
0, "Simple EGL/GLES Sink");
#ifdef USE_EGL_RPI
GST_DEBUG ("Initialize BCM host");
bcm_host_init ();
#endif
return gst_element_register (plugin, "eglglessink", GST_RANK_PRIMARY,
GST_TYPE_EGLGLESSINK);
}
/* gstreamer looks for this structure to register eglglessinks */
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
eglglessink,
"EGL/GLES sink",
eglglessink_plugin_init,
VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
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