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gstreamer/ext/eglgles/gsteglglessink.c
Thiago Santos ef66e39d03 eagl: fix handling of surface dimension changes 
Detect when the eagl surface changed its dimension (when the user rotates
the device for example) and adapt the egl internals to draw to that,
preventing that ios resizes the image again when drawing.

This is particularly harmful when eagl would scale down a image
to draw and the ios screen would scale it back up because the
surface is now bigger than when the element was configured.
2013-05-16 15:16:30 -03:00

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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 "gstegladaptation.h"
#ifdef USE_EGL_RPI
#include <bcm_host.h>
#endif
#include "gsteglglessink.h"
GST_DEBUG_CATEGORY_STATIC (gst_eglglessink_debug);
#define GST_CAT_DEFAULT gst_eglglessink_debug
GST_DEBUG_CATEGORY_EXTERN (GST_CAT_PERFORMANCE);
/* 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 gboolean gst_eglglessink_create_window (GstEglGlesSink *
eglglessink, gint width, gint height);
static gboolean gst_eglglessink_setup_vbo (GstEglGlesSink * eglglessink);
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 egl_init (GstEglGlesSink * eglglessink);
static GstBufferPool *gst_egl_image_buffer_pool_new (GstEglGlesSink *
eglglessink, GstEGLDisplay * display);
/* 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);
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)
{
}
#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 inline gboolean
egl_init (GstEglGlesSink * eglglessink)
{
GstCaps *caps;
if (!gst_egl_adaptation_init_egl_display (eglglessink->egl_context)) {
GST_ERROR_OBJECT (eglglessink, "Couldn't init EGL display");
goto HANDLE_ERROR;
}
caps =
gst_egl_adaptation_fill_supported_fbuffer_configs
(eglglessink->egl_context);
if (!caps) {
GST_ERROR_OBJECT (eglglessink, "Display support NONE of our configs");
goto HANDLE_ERROR;
} else {
GST_OBJECT_LOCK (eglglessink);
gst_caps_replace (&eglglessink->sinkcaps, caps);
GST_OBJECT_UNLOCK (eglglessink);
gst_caps_unref (caps);
}
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_egl_adaptation_allocate_eglimage (eglglessink->egl_context,
GST_EGL_IMAGE_BUFFER_POOL (eglglessink->pool)->allocator, 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_egl_adaptation_cleanup (eglglessink->egl_context);
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 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) {
gst_egl_adaptation_destroy_native_window (eglglessink->egl_context,
&eglglessink->own_window_data);
eglglessink->have_window = FALSE;
}
eglglessink->egl_context->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 gboolean
gst_eglglessink_create_window (GstEglGlesSink * eglglessink, gint width,
gint height)
{
gboolean window_created = FALSE;
if (!eglglessink->create_window) {
GST_ERROR_OBJECT (eglglessink, "This sink can't create a window by itself");
return FALSE;
} else
GST_INFO_OBJECT (eglglessink, "Attempting internal window creation");
window_created =
gst_egl_adaptation_create_native_window (eglglessink->egl_context, width,
height, &eglglessink->own_window_data);
if (!window_created) {
GST_ERROR_OBJECT (eglglessink, "Could not create window");
}
return window_created;
}
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");
}
static gboolean
gst_eglglessink_setup_vbo (GstEglGlesSink * eglglessink)
{
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",
eglglessink->egl_context->have_vbo);
if (eglglessink->egl_context->have_vbo) {
glDeleteBuffers (1, &eglglessink->egl_context->position_buffer);
glDeleteBuffers (1, &eglglessink->egl_context->index_buffer);
eglglessink->egl_context->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->egl_context->position_array[0].x = x2;
eglglessink->egl_context->position_array[0].y = y2;
eglglessink->egl_context->position_array[0].z = 0;
eglglessink->egl_context->position_array[0].a = tx2;
eglglessink->egl_context->position_array[0].b = ty1;
eglglessink->egl_context->position_array[1].x = x2;
eglglessink->egl_context->position_array[1].y = y1;
eglglessink->egl_context->position_array[1].z = 0;
eglglessink->egl_context->position_array[1].a = tx2;
eglglessink->egl_context->position_array[1].b = ty2;
eglglessink->egl_context->position_array[2].x = x1;
eglglessink->egl_context->position_array[2].y = y2;
eglglessink->egl_context->position_array[2].z = 0;
eglglessink->egl_context->position_array[2].a = tx1;
eglglessink->egl_context->position_array[2].b = ty1;
eglglessink->egl_context->position_array[3].x = x1;
eglglessink->egl_context->position_array[3].y = y1;
eglglessink->egl_context->position_array[3].z = 0;
eglglessink->egl_context->position_array[3].a = tx1;
eglglessink->egl_context->position_array[3].b = ty2;
/* X-normal, Y-flip orientation */
eglglessink->egl_context->position_array[4 + 0].x = x2;
eglglessink->egl_context->position_array[4 + 0].y = y2;
eglglessink->egl_context->position_array[4 + 0].z = 0;
eglglessink->egl_context->position_array[4 + 0].a = tx2;
eglglessink->egl_context->position_array[4 + 0].b = ty2;
eglglessink->egl_context->position_array[4 + 1].x = x2;
eglglessink->egl_context->position_array[4 + 1].y = y1;
eglglessink->egl_context->position_array[4 + 1].z = 0;
eglglessink->egl_context->position_array[4 + 1].a = tx2;
eglglessink->egl_context->position_array[4 + 1].b = ty1;
eglglessink->egl_context->position_array[4 + 2].x = x1;
eglglessink->egl_context->position_array[4 + 2].y = y2;
eglglessink->egl_context->position_array[4 + 2].z = 0;
eglglessink->egl_context->position_array[4 + 2].a = tx1;
eglglessink->egl_context->position_array[4 + 2].b = ty2;
eglglessink->egl_context->position_array[4 + 3].x = x1;
eglglessink->egl_context->position_array[4 + 3].y = y1;
eglglessink->egl_context->position_array[4 + 3].z = 0;
eglglessink->egl_context->position_array[4 + 3].a = tx1;
eglglessink->egl_context->position_array[4 + 3].b = ty1;
if (eglglessink->display_region.x == 0) {
/* Borders top/bottom */
eglglessink->egl_context->position_array[8 + 0].x = 1;
eglglessink->egl_context->position_array[8 + 0].y = 1;
eglglessink->egl_context->position_array[8 + 0].z = 0;
eglglessink->egl_context->position_array[8 + 1].x = x2;
eglglessink->egl_context->position_array[8 + 1].y = y2;
eglglessink->egl_context->position_array[8 + 1].z = 0;
eglglessink->egl_context->position_array[8 + 2].x = -1;
eglglessink->egl_context->position_array[8 + 2].y = 1;
eglglessink->egl_context->position_array[8 + 2].z = 0;
eglglessink->egl_context->position_array[8 + 3].x = x1;
eglglessink->egl_context->position_array[8 + 3].y = y2;
eglglessink->egl_context->position_array[8 + 3].z = 0;
eglglessink->egl_context->position_array[12 + 0].x = 1;
eglglessink->egl_context->position_array[12 + 0].y = y1;
eglglessink->egl_context->position_array[12 + 0].z = 0;
eglglessink->egl_context->position_array[12 + 1].x = 1;
eglglessink->egl_context->position_array[12 + 1].y = -1;
eglglessink->egl_context->position_array[12 + 1].z = 0;
eglglessink->egl_context->position_array[12 + 2].x = x1;
eglglessink->egl_context->position_array[12 + 2].y = y1;
eglglessink->egl_context->position_array[12 + 2].z = 0;
eglglessink->egl_context->position_array[12 + 3].x = -1;
eglglessink->egl_context->position_array[12 + 3].y = -1;
eglglessink->egl_context->position_array[12 + 3].z = 0;
} else {
/* Borders left/right */
eglglessink->egl_context->position_array[8 + 0].x = x1;
eglglessink->egl_context->position_array[8 + 0].y = 1;
eglglessink->egl_context->position_array[8 + 0].z = 0;
eglglessink->egl_context->position_array[8 + 1].x = x1;
eglglessink->egl_context->position_array[8 + 1].y = -1;
eglglessink->egl_context->position_array[8 + 1].z = 0;
eglglessink->egl_context->position_array[8 + 2].x = -1;
eglglessink->egl_context->position_array[8 + 2].y = 1;
eglglessink->egl_context->position_array[8 + 2].z = 0;
eglglessink->egl_context->position_array[8 + 3].x = -1;
eglglessink->egl_context->position_array[8 + 3].y = -1;
eglglessink->egl_context->position_array[8 + 3].z = 0;
eglglessink->egl_context->position_array[12 + 0].x = 1;
eglglessink->egl_context->position_array[12 + 0].y = 1;
eglglessink->egl_context->position_array[12 + 0].z = 0;
eglglessink->egl_context->position_array[12 + 1].x = 1;
eglglessink->egl_context->position_array[12 + 1].y = -1;
eglglessink->egl_context->position_array[12 + 1].z = 0;
eglglessink->egl_context->position_array[12 + 2].x = x2;
eglglessink->egl_context->position_array[12 + 2].y = y2;
eglglessink->egl_context->position_array[12 + 2].z = 0;
eglglessink->egl_context->position_array[12 + 3].x = x2;
eglglessink->egl_context->position_array[12 + 3].y = -1;
eglglessink->egl_context->position_array[12 + 3].z = 0;
}
eglglessink->egl_context->index_array[0] = 0;
eglglessink->egl_context->index_array[1] = 1;
eglglessink->egl_context->index_array[2] = 2;
eglglessink->egl_context->index_array[3] = 3;
glGenBuffers (1, &eglglessink->egl_context->position_buffer);
glGenBuffers (1, &eglglessink->egl_context->index_buffer);
if (got_gl_error ("glGenBuffers"))
goto HANDLE_ERROR_LOCKED;
glBindBuffer (GL_ARRAY_BUFFER, eglglessink->egl_context->position_buffer);
if (got_gl_error ("glBindBuffer position_buffer"))
goto HANDLE_ERROR_LOCKED;
glBufferData (GL_ARRAY_BUFFER,
sizeof (eglglessink->egl_context->position_array),
eglglessink->egl_context->position_array, GL_STATIC_DRAW);
if (got_gl_error ("glBufferData position_buffer"))
goto HANDLE_ERROR_LOCKED;
glBindBuffer (GL_ELEMENT_ARRAY_BUFFER,
eglglessink->egl_context->index_buffer);
if (got_gl_error ("glBindBuffer index_buffer"))
goto HANDLE_ERROR_LOCKED;
glBufferData (GL_ELEMENT_ARRAY_BUFFER,
sizeof (eglglessink->egl_context->index_array),
eglglessink->egl_context->index_array, GL_STATIC_DRAW);
if (got_gl_error ("glBufferData index_buffer"))
goto HANDLE_ERROR_LOCKED;
eglglessink->egl_context->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;
}
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->egl_context->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 %" G_GSIZE_FORMAT, 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->egl_context->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->egl_context->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->egl_context->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->egl_context->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->egl_context->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->egl_context->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->egl_context->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->egl_context->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->egl_context->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) {
gint i;
if (upload_meta->n_textures != eglglessink->egl_context->n_textures)
goto HANDLE_ERROR;
for (i = 0; i < eglglessink->egl_context->n_textures; i++) {
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->egl_context->texture[i]);
}
if (!gst_video_gl_texture_upload_meta_upload (upload_meta,
eglglessink->egl_context->texture))
goto HANDLE_ERROR;
eglglessink->orientation = upload_meta->texture_orientation;
eglglessink->stride[0] = 1;
eglglessink->stride[1] = 1;
eglglessink->stride[2] = 1;
} else if (gst_buffer_n_memory (buf) >= 1 &&
(mem = gst_buffer_peek_memory (buf, 0))
&& gst_is_egl_image_memory (mem)) {
guint n, i;
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->egl_context->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_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL
&& eglglessink->orientation !=
GST_VIDEO_GL_TEXTURE_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->orientation =
GST_VIDEO_GL_TEXTURE_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_egl_adaptation_update_surface_dimensions (eglglessink->egl_context) ||
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->egl_context->surface_width;
eglglessink->render_region.h = eglglessink->egl_context->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->egl_context->pixel_aspect_ratio_n,
eglglessink->egl_context->pixel_aspect_ratio_d)) {
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->egl_context->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->egl_context->buffer_preserved) {
glClearColor (0.0, 0.0, 0.0, 1.0);
glClear (GL_COLOR_BUFFER_BIT);
}
if (!gst_eglglessink_setup_vbo (eglglessink)) {
GST_OBJECT_UNLOCK (eglglessink);
GST_ERROR_OBJECT (eglglessink, "VBO setup failed");
goto HANDLE_ERROR;
}
GST_OBJECT_UNLOCK (eglglessink);
}
if (!eglglessink->egl_context->buffer_preserved) {
/* Draw black borders */
GST_DEBUG_OBJECT (eglglessink, "Drawing black border 1");
glUseProgram (eglglessink->egl_context->glslprogram[1]);
glVertexAttribPointer (eglglessink->egl_context->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->egl_context->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");
glUseProgram (eglglessink->egl_context->glslprogram[0]);
glUniform2f (eglglessink->egl_context->tex_scale_loc[0][0],
eglglessink->stride[0], 1);
glUniform2f (eglglessink->egl_context->tex_scale_loc[0][1],
eglglessink->stride[1], 1);
glUniform2f (eglglessink->egl_context->tex_scale_loc[0][2],
eglglessink->stride[2], 1);
for (i = 0; i < eglglessink->egl_context->n_textures; i++) {
glUniform1i (eglglessink->egl_context->tex_loc[0][i], i);
if (got_gl_error ("glUniform1i"))
goto HANDLE_ERROR;
}
if (eglglessink->orientation ==
GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL) {
glVertexAttribPointer (eglglessink->egl_context->position_loc[0], 3,
GL_FLOAT, GL_FALSE, sizeof (coord5), (gpointer) (0 * sizeof (coord5)));
if (got_gl_error ("glVertexAttribPointer"))
goto HANDLE_ERROR;
glVertexAttribPointer (eglglessink->egl_context->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_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_FLIP) {
glVertexAttribPointer (eglglessink->egl_context->position_loc[0], 3,
GL_FLOAT, GL_FALSE, sizeof (coord5), (gpointer) (4 * sizeof (coord5)));
if (got_gl_error ("glVertexAttribPointer"))
goto HANDLE_ERROR;
glVertexAttribPointer (eglglessink->egl_context->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 (!gst_egl_adaptation_context_swap_buffers (eglglessink->egl_context)) {
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->egl_context->set_display)
gst_egl_display_unref (eglglessink->egl_context->set_display);
eglglessink->egl_context->set_display = display;
GST_OBJECT_UNLOCK (eglglessink);
}
gst_context_unref (context);
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->egl_context->display);
gst_query_set_context (query, context);
gst_context_unref (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->egl_context->set_display)
gst_egl_display_unref (eglglessink->egl_context->set_display);
eglglessink->egl_context->set_display = display;
GST_OBJECT_UNLOCK (eglglessink);
}
GST_OBJECT_LOCK (eglglessink);
context = gst_context_copy (context);
gst_context_set_egl_display (context, eglglessink->egl_context->display);
GST_OBJECT_UNLOCK (eglglessink);
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
gst_context_unref (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->egl_context->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_egl_adaptation_cleanup (eglglessink->egl_context);
gst_caps_unref (eglglessink->configured_caps);
eglglessink->configured_caps = NULL;
}
if (!gst_egl_adaptation_choose_config (eglglessink->egl_context)) {
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) {
GST_INFO_OBJECT (eglglessink,
"No window. Will attempt internal window creation");
if (!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->have_window = TRUE;
}
GST_DEBUG_OBJECT (eglglessink, "Using window handle %p",
(gpointer) eglglessink->egl_context->window);
eglglessink->egl_context->used_window = eglglessink->egl_context->window;
GST_OBJECT_UNLOCK (eglglessink);
gst_video_overlay_got_window_handle (GST_VIDEO_OVERLAY (eglglessink),
(guintptr) eglglessink->egl_context->used_window);
if (!eglglessink->egl_context->have_surface) {
if (!gst_egl_adaptation_init_egl_surface (eglglessink->egl_context,
eglglessink->configured_info.finfo->format)) {
GST_ERROR_OBJECT (eglglessink, "Couldn't init EGL surface from window");
goto HANDLE_ERROR;
}
}
gst_egl_adaptation_init_egl_exts (eglglessink->egl_context);
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->egl_context->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->egl_context->display) {
gst_egl_display_unref (eglglessink->egl_context->display);
eglglessink->egl_context->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);
gst_egl_adaptation_context_free (eglglessink->egl_context);
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)
{
eglglessink->egl_context =
gst_egl_adaptation_context_new (GST_ELEMENT_CAST (eglglessink));
/* Init defaults */
/** Flags */
eglglessink->have_window = FALSE;
eglglessink->egl_context->have_surface = FALSE;
eglglessink->egl_context->have_vbo = FALSE;
eglglessink->egl_context->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;
}
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");
gst_egl_adaption_init ();
#ifdef USE_EGL_RPI
GST_DEBUG ("Initialize BCM host");
bcm_host_init ();
#endif
return gst_element_register (plugin, "eglglessink", GST_RANK_SECONDARY,
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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