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[572/906] remove upload and download elements

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to be replaced by upload and download in memory
This commit is contained in:
Matthew Waters 2012-09-16 21:11:46 +10:00
parent aebcacecf8
commit d163ecce23
5 changed files with 0 additions and 1272 deletions
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531
gst/gl/gstgldownload.c
View file

@ -1,531 +0,0 @@
/*
* GStreamer
* Copyright (C) 2007 David Schleef <ds@schleef.org>
* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:element-gldownload
*
* download opengl textures into video frames.
*
* <refsect2>
* <title>Color space conversion</title>
* <para>
* When needed, the color space conversion is made in a fragment shader using
* one frame buffer object instance.
* </para>
* </refsect2>
* <refsect2>
* <title>Examples</title>
* |[
* gst-launch -v videotestsrc ! "video/x-raw-rgb" ! glupload ! gldownload ! \
* "video/x-raw-rgb" ! ximagesink
* ]| A pipeline to test downloading.
* No special opengl extension is used in this pipeline, that's why it should work
* with OpenGL >= 1.1. That's the case if you are using the MESA3D driver v1.3.
|[
* gst-launch -v videotestsrc ! "video/x-raw-rgb, width=640, height=480" ! glupload ! gldownload ! \
* "video/x-raw-rgb, width=320, height=240" ! ximagesink
* ]| A pipeline to test hardware scaling.
* Frame buffer extension is required. Inded one FBO is used bettween glupload and gldownload,
* because the texture needs to be resized.
* |[
* gst-launch -v gltestsrc ! gldownload ! xvimagesink
* ]| A pipeline to test hardware colorspace conversion.
* Your driver must support GLSL (OpenGL Shading Language needs OpenGL >= 2.1).
* Texture RGB32 is converted to one of the 4 following format YUY2, UYVY, I420, YV12 and AYUV,
* through some fragment shaders and using one framebuffer (FBO extension OpenGL >= 1.4).
* MESA >= 7.1 supports GLSL but it's made in software.
* |[
* gst-launch -v videotestsrc ! glupload ! gldownload ! "video/x-raw-yuv, format=(fourcc)YUY2" ! glimagesink
* ]| A pipeline to test hardware colorspace conversion
* FBO and GLSL are required.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstgldownload.h"
#define GST_CAT_DEFAULT gst_gl_download_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
static GstStaticPadTemplate gst_gl_download_src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_GL_DOWNLOAD_VIDEO_CAPS)
);
static GstStaticPadTemplate gst_gl_download_sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
);
enum
{
PROP_0
};
#define gst_gl_download_parent_class parent_class
#define DEBUG_INIT \
GST_DEBUG_CATEGORY_INIT (gst_gl_download_debug, "gldownload", 0, "gldownload element");
G_DEFINE_TYPE_WITH_CODE (GstGLDownload, gst_gl_download,
GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
static void gst_gl_download_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_gl_download_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_gl_download_query (GstBaseTransform * trans,
GstPadDirection direction, GstQuery * query);
static void gst_gl_download_reset (GstGLDownload * download);
static gboolean gst_gl_download_set_caps (GstBaseTransform * bt,
GstCaps * incaps, GstCaps * outcaps);
static GstCaps *gst_gl_download_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static gboolean gst_gl_download_start (GstBaseTransform * bt);
static gboolean gst_gl_download_stop (GstBaseTransform * bt);
static GstFlowReturn gst_gl_download_transform (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf);
static gboolean gst_gl_download_get_unit_size (GstBaseTransform * trans,
GstCaps * caps, gsize * size);
static gboolean gst_gl_download_decide_allocation (GstBaseTransform * trans,
GstQuery * query);
static gboolean gst_gl_download_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_allocation, GstQuery * query);
static void
gst_gl_download_class_init (GstGLDownloadClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_gl_download_set_property;
gobject_class->get_property = gst_gl_download_get_property;
gst_element_class_set_details_simple (element_class, "OpenGL video maker",
"Filter/Effect", "A from GL to video flow filter",
"Julien Isorce <julien.isorce@gmail.com>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_gl_download_src_pad_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_gl_download_sink_pad_template));
GST_BASE_TRANSFORM_CLASS (klass)->query = gst_gl_download_query;
GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
gst_gl_download_transform_caps;
GST_BASE_TRANSFORM_CLASS (klass)->transform = gst_gl_download_transform;
GST_BASE_TRANSFORM_CLASS (klass)->start = gst_gl_download_start;
GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_download_stop;
GST_BASE_TRANSFORM_CLASS (klass)->set_caps = gst_gl_download_set_caps;
GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size =
gst_gl_download_get_unit_size;
GST_BASE_TRANSFORM_CLASS (klass)->propose_allocation =
gst_gl_download_propose_allocation;
GST_BASE_TRANSFORM_CLASS (klass)->decide_allocation =
gst_gl_download_decide_allocation;
}
static void
gst_gl_download_init (GstGLDownload * download)
{
gst_gl_download_reset (download);
}
static void
gst_gl_download_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
//GstGLDownload *download = GST_GL_DOWNLOAD (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_gl_download_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
//GstGLDownload *download = GST_GL_DOWNLOAD (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_gl_download_query (GstBaseTransform * trans, GstPadDirection direction,
GstQuery * query)
{
GstGLDownload *download;
gboolean res;
download = GST_GL_DOWNLOAD (trans);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CUSTOM:
{
GstStructure *structure = gst_query_writable_structure (query);
if (direction == GST_PAD_SINK &&
gst_structure_has_name (structure, "gstgldisplay")) {
gst_structure_set (structure, "gstgldisplay", G_TYPE_POINTER,
download->display, NULL);
res = TRUE;
} else
res =
GST_BASE_TRANSFORM_CLASS (parent_class)->query (trans, direction,
query);
break;
}
default:
res =
GST_BASE_TRANSFORM_CLASS (parent_class)->query (trans, direction,
query);
break;
}
return res;
}
static void
gst_gl_download_reset (GstGLDownload * download)
{
if (download->display) {
g_object_unref (download->display);
download->display = NULL;
}
}
static gboolean
gst_gl_download_start (GstBaseTransform * bt)
{
GstGLDownload *download = GST_GL_DOWNLOAD (bt);
GST_INFO ("Creating GstGLDisplay");
download->display = gst_gl_display_new ();
if (!gst_gl_display_create_context (download->display, 0)) {
GST_ELEMENT_ERROR (download, RESOURCE, NOT_FOUND,
GST_GL_DISPLAY_ERR_MSG (download->display), (NULL));
return FALSE;
}
return TRUE;
}
static gboolean
gst_gl_download_stop (GstBaseTransform * bt)
{
GstGLDownload *download = GST_GL_DOWNLOAD (bt);
gst_gl_download_reset (download);
return TRUE;
}
/* from videoconvert code */
/* copies the given caps */
static GstCaps *
gst_gl_download_caps_remove_format_info (GstCaps * caps)
{
GstStructure *st;
gint i, n;
GstCaps *res;
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
st = gst_caps_get_structure (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure (res, st))
continue;
st = gst_structure_copy (st);
gst_structure_remove_fields (st, "format", "palette_data",
"colorimetry", "chroma-site", NULL);
gst_caps_append_structure (res, st);
}
return res;
}
/* from videoconvert code */
static GstCaps *
gst_gl_download_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *tmp, *tmp2;
GstCaps *result;
/* Get all possible caps that we can transform to */
tmp = gst_gl_download_caps_remove_format_info (caps);
if (filter) {
tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
tmp = tmp2;
}
result = tmp;
GST_DEBUG_OBJECT (bt, "transformed %" GST_PTR_FORMAT " into %"
GST_PTR_FORMAT, caps, result);
return result;
}
static gboolean
gst_gl_download_set_caps (GstBaseTransform * bt, GstCaps * incaps,
GstCaps * outcaps)
{
GstGLDownload *download;
GstVideoInfo in_vinfo, out_vinfo;
GstVideoFormat video_format;
gint width, height;
gboolean ret;
download = GST_GL_DOWNLOAD (bt);
GST_DEBUG ("called with in: %" GST_PTR_FORMAT " and out: %" GST_PTR_FORMAT,
incaps, outcaps);
ret = gst_video_info_from_caps (&in_vinfo, incaps);
ret |= gst_video_info_from_caps (&out_vinfo, outcaps);
if (!ret) {
GST_ERROR ("bad caps");
return FALSE;
}
download->out_info = out_vinfo;
download->in_info = in_vinfo;
video_format = GST_VIDEO_INFO_FORMAT (&out_vinfo);
width = GST_VIDEO_INFO_WIDTH (&out_vinfo);
height = GST_VIDEO_INFO_HEIGHT (&out_vinfo);
if (!download->display) {
GST_ERROR ("display is null");
return FALSE;
}
//blocking call, init color space conversion if needed
ret = gst_gl_display_init_download (download->display, video_format,
width, height);
if (!ret)
GST_ELEMENT_ERROR (download, RESOURCE, NOT_FOUND,
GST_GL_DISPLAY_ERR_MSG (download->display), (NULL));
return ret;
}
static gboolean
gst_gl_download_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
gsize * size)
{
gboolean ret;
GstVideoInfo vinfo;
ret = gst_video_info_from_caps (&vinfo, caps);
if (ret)
*size = GST_VIDEO_INFO_SIZE (&vinfo);
return ret;
}
static GstFlowReturn
gst_gl_download_transform (GstBaseTransform * trans, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstGLDownload *download;
GstGLMeta *gl_meta;
GstVideoFrame frame;
download = GST_GL_DOWNLOAD (trans);
gl_meta = gst_buffer_get_gl_meta (inbuf);
if (!gl_meta) {
GST_WARNING ("Input buffer does not have required GstGLMeta");
}
if (!gst_video_frame_map (&frame, &download->out_info, outbuf, GST_MAP_WRITE)) {
GST_WARNING ("Could not map data for writing");
goto error;
}
if (!gst_gl_display_do_download (download->display, gl_meta->memory->tex_id,
&frame)) {
GST_WARNING ("Failed to download data");
}
gst_video_frame_unmap (&frame);
return GST_FLOW_OK;
/* ERRORS */
error:
{
return GST_FLOW_ERROR;
}
}
static gboolean
gst_gl_download_decide_allocation (GstBaseTransform * trans, GstQuery * query)
{
GstBufferPool *pool = NULL;
GstStructure *config;
GstCaps *caps;
guint min, max, size;
gboolean update_pool;
gst_query_parse_allocation (query, &caps, NULL);
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
update_pool = TRUE;
} else {
GstVideoInfo vinfo;
gst_video_info_init (&vinfo);
gst_video_info_from_caps (&vinfo, caps);
size = vinfo.size;
min = max = 0;
update_pool = FALSE;
}
if (!pool)
pool = gst_video_buffer_pool_new ();
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_set_config (pool, config);
if (update_pool)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
return TRUE;
}
static gboolean
gst_gl_download_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query)
{
GstGLDownload *download = GST_GL_DOWNLOAD (trans);
GstBufferPool *pool;
GstStructure *config;
GstCaps *caps;
guint size;
gboolean need_pool;
gst_query_parse_allocation (query, &caps, &need_pool);
if (caps == NULL)
goto no_caps;
if ((pool = download->pool))
gst_object_ref (pool);
if (pool != NULL) {
GstCaps *pcaps;
/* we had a pool, check caps */
GST_DEBUG_OBJECT (download, "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 (download, "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))
goto invalid_caps;
GST_DEBUG_OBJECT (download, "create new pool");
pool = gst_gl_buffer_pool_new (download->display);
/* the normal size of a frame */
size = info.size;
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
}
/* we need at least 2 buffer because we hold on to the last one */
gst_query_add_allocation_pool (query, pool, size, 2, 0);
/* we also support various metadata */
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, 0);
gst_query_add_allocation_meta (query, GST_GL_META_API_TYPE, 0);
gst_object_unref (pool);
return TRUE;
/* ERRORS */
no_caps:
{
GST_DEBUG_OBJECT (trans, "no caps specified");
return FALSE;
}
invalid_caps:
{
GST_DEBUG_OBJECT (trans, "invalid caps specified");
return FALSE;
}
config_failed:
{
GST_DEBUG_OBJECT (trans, "failed setting config");
return FALSE;
}
}

63
gst/gl/gstgldownload.h
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@ -1,63 +0,0 @@
/*
* GStreamer
* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef _GST_GLDOWNLOAD_H_
#define _GST_GLDOWNLOAD_H_
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/video/video.h>
#include "gstglbufferpool.h"
#include "gstglmeta.h"
G_BEGIN_DECLS
#define GST_TYPE_GL_DOWNLOAD (gst_gl_download_get_type())
#define GST_GL_DOWNLOAD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_DOWNLOAD,GstGLDownload))
#define GST_IS_GL_DOWNLOAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_DOWNLOAD))
#define GST_GL_DOWNLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_GL_DOWNLOAD,GstGLDownloadClass))
#define GST_IS_GL_DOWNLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_GL_DOWNLOAD))
#define GST_GL_DOWNLOAD_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_GL_DOWNLOAD,GstGLDownloadClass))
typedef struct _GstGLDownload GstGLDownload;
typedef struct _GstGLDownloadClass GstGLDownloadClass;
struct _GstGLDownload
{
GstBaseTransform base_transform;
GstGLDisplay *display;
GstVideoInfo in_info, out_info;
GstBufferPool *pool;
};
struct _GstGLDownloadClass
{
GstBaseTransformClass base_transform_class;
};
GType gst_gl_download_get_type (void);
G_END_DECLS
#endif /* _GST_GLDOWNLOAD_H_ */

596
gst/gl/gstglupload.c
View file

@ -1,596 +0,0 @@
/*
* GStreamer
* Copyright (C) 2007 David Schleef <ds@schleef.org>
* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:element-glupload
*
* upload video frames video frames into opengl textures.
*
* <refsect2>
* <title>Color space conversion</title>
* <para>
* Depends on the driver and when needed, the color space conversion is made
* in a fragment shader using one frame buffer object instance, or using
* mesa ycbcr .
* </para>
* </refsect2>
* <refsect2>
* <title>Examples</title>
* |[
* gst-launch -v videotestsrc ! "video/x-raw-rgb" ! glupload ! glimagesink
* ]| A pipeline to test hardware scaling.
* No special opengl extension is used in this pipeline, that's why it should work
* with OpenGL >= 1.1. That's the case if you are using the MESA3D driver v1.3.
* |[
* gst-launch -v videotestsrc ! "video/x-raw-yuv, format=(fourcc)I420" ! glupload ! glimagesink
* ]| A pipeline to test hardware scaling and hardware colorspace conversion.
* When your driver supports GLSL (OpenGL Shading Language needs OpenGL >= 2.1),
* the 4 following format YUY2, UYVY, I420, YV12 and AYUV are converted to RGB32
* through some fragment shaders and using one framebuffer (FBO extension OpenGL >= 1.4).
* If your driver does not support GLSL but supports MESA_YCbCr extension then
* the you can use YUY2 and UYVY. In this case the colorspace conversion is automatically
* made when loading the texture and therefore no framebuffer is used.
* |[
* gst-launch -v videotestsrc ! "video/x-raw-rgb, width=320, height=240" ! glupload ! \
* "video/x-raw-gl, width=640, height=480" ! glimagesink
* ]| A pipeline to test hardware scaling.
* Frame buffer extension is required. Inded one FBO is used bettween glupload and glimagesink,
* because the texture needs to be resized.
* |[
* gst-launch -v videotestsrc ! "video/x-raw-yuv, width=320, height=240" ! glupload ! \
* "video/x-raw-gl, width=640, height=480" ! glimagesink
* ]| A pipeline to test hardware scaling.
* Frame buffer extension is required. Inded one FBO is used bettween glupload and glimagesink,
* because the texture needs to be resized. Depends on your driver the color space conversion
* is made in a fragment shader using one frame buffer object instance, or using mesa ycbcr .
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstglupload.h"
#define GST_CAT_DEFAULT gst_gl_upload_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
/* Source pad definition */
static GstStaticPadTemplate gst_gl_upload_src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
);
/* Sink pad definition */
static GstStaticPadTemplate gst_gl_upload_sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_GL_UPLOAD_VIDEO_CAPS)
);
#define DEFAULT_WIDTH 320
#define DEFAULT_HEIGHT 240
#define DEFAULT_FORMAT "RGBA"
/* Properties */
enum
{
PROP_0,
PROP_EXTERNAL_OPENGL_CONTEXT
};
#define DEBUG_INIT \
GST_DEBUG_CATEGORY_INIT (gst_gl_upload_debug, "glupload", 0, "glupload element");
G_DEFINE_TYPE_WITH_CODE (GstGLUpload, gst_gl_upload, GST_TYPE_BASE_TRANSFORM,
DEBUG_INIT);
static void gst_gl_upload_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_gl_upload_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_gl_upload_src_query (GstPad * pad, GstObject * object,
GstQuery * query);
static void gst_gl_upload_reset (GstGLUpload * upload);
static gboolean gst_gl_upload_set_caps (GstBaseTransform * bt,
GstCaps * incaps, GstCaps * outcaps);
static GstCaps *gst_gl_upload_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static GstCaps *gst_gl_upload_fixate_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
static gboolean gst_gl_upload_start (GstBaseTransform * bt);
static gboolean gst_gl_upload_stop (GstBaseTransform * bt);
static GstFlowReturn gst_gl_upload_transform (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf);
static gboolean gst_gl_upload_get_unit_size (GstBaseTransform * trans,
GstCaps * caps, gsize * size);
static gboolean gst_gl_upload_decide_allocation (GstBaseTransform * trans,
GstQuery * query);
static gboolean gst_gl_upload_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_allocation, GstQuery * query);
static void
gst_gl_upload_class_init (GstGLUploadClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
gobject_class->set_property = gst_gl_upload_set_property;
gobject_class->get_property = gst_gl_upload_get_property;
GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
gst_gl_upload_transform_caps;
GST_BASE_TRANSFORM_CLASS (klass)->fixate_caps = gst_gl_upload_fixate_caps;
GST_BASE_TRANSFORM_CLASS (klass)->transform = gst_gl_upload_transform;
GST_BASE_TRANSFORM_CLASS (klass)->start = gst_gl_upload_start;
GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_upload_stop;
GST_BASE_TRANSFORM_CLASS (klass)->set_caps = gst_gl_upload_set_caps;
GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size = gst_gl_upload_get_unit_size;
GST_BASE_TRANSFORM_CLASS (klass)->decide_allocation =
gst_gl_upload_decide_allocation;
GST_BASE_TRANSFORM_CLASS (klass)->propose_allocation =
gst_gl_upload_propose_allocation;
g_object_class_install_property (gobject_class, PROP_EXTERNAL_OPENGL_CONTEXT,
g_param_spec_ulong ("external-opengl-context",
"External OpenGL context",
"Give an external OpenGL context with which to share textures",
0, G_MAXULONG, 0, G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
gst_element_class_set_details_simple (element_class, "OpenGL upload",
"Filter/Effect", "A from video to GL flow filter",
"Julien Isorce <julien.isorce@gmail.com>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_gl_upload_src_pad_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_gl_upload_sink_pad_template));
}
static void
gst_gl_upload_init (GstGLUpload * upload)
{
GstBaseTransform *base_trans = GST_BASE_TRANSFORM (upload);
gst_pad_set_query_function (base_trans->srcpad,
GST_DEBUG_FUNCPTR (gst_gl_upload_src_query));
gst_gl_upload_reset (upload);
}
static void
gst_gl_upload_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstGLUpload *upload = GST_GL_UPLOAD (object);
switch (prop_id) {
case PROP_EXTERNAL_OPENGL_CONTEXT:
{
upload->external_gl_context = g_value_get_ulong (value);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_gl_upload_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
//GstGLUpload *upload = GST_GL_UPLOAD (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_gl_upload_src_query (GstPad * pad, GstObject * object, GstQuery * query)
{
gboolean res;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CUSTOM:
{
const GstStructure *structure = gst_query_get_structure (query);
gchar *name = gst_element_get_name (object);
res = g_strcmp0 (name, gst_structure_get_name (structure)) == 0;
g_free (name);
if (!res)
res = gst_pad_query_default (pad, object, query);
break;
}
default:
res = gst_pad_query_default (pad, object, query);
break;
}
return res;
}
static void
gst_gl_upload_reset (GstGLUpload * upload)
{
if (upload->display) {
g_object_unref (upload->display);
upload->display = NULL;
}
upload->external_gl_context = 0;
}
static gboolean
gst_gl_upload_start (GstBaseTransform * bt)
{
GstGLUpload *upload = GST_GL_UPLOAD (bt);
GstStructure *structure;
GstQuery *display_query;
const GValue *id_value;
structure = gst_structure_new_empty ("gstgldisplay");
display_query = gst_query_new_custom (GST_QUERY_CUSTOM, structure);
if (!gst_pad_peer_query (bt->srcpad, display_query)) {
GST_WARNING
("Could not query GstGLDisplay from downstream (peer query failed)");
}
id_value = gst_structure_get_value (structure, "gstgldisplay");
if (G_VALUE_HOLDS_POINTER (id_value))
/* at least one gl element is after in our gl chain */
upload->display =
g_object_ref (GST_GL_DISPLAY (g_value_get_pointer (id_value)));
else {
GST_INFO ("Creating GstGLDisplay");
upload->display = gst_gl_display_new ();
if (!gst_gl_display_create_context (upload->display, 0)) {
GST_ELEMENT_ERROR (upload, RESOURCE, NOT_FOUND,
GST_GL_DISPLAY_ERR_MSG (upload->display), (NULL));
return FALSE;
}
}
return TRUE;
}
static gboolean
gst_gl_upload_stop (GstBaseTransform * bt)
{
GstGLUpload *upload = GST_GL_UPLOAD (bt);
gst_gl_upload_reset (upload);
return TRUE;
}
/* from videoconvert code */
/* copies the given caps */
static GstCaps *
gst_gl_upload_caps_remove_format_info (GstCaps * caps)
{
GstStructure *st;
gint i, n;
GstCaps *res;
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
st = gst_caps_get_structure (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure (res, st))
continue;
st = gst_structure_copy (st);
gst_structure_set (st, "width", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
gst_structure_set (st, "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
gst_structure_remove_fields (st, "format", "palette_data",
"colorimetry", "chroma-site", NULL);
gst_caps_append_structure (res, st);
}
return res;
}
static GstCaps *
gst_gl_upload_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *tmp, *tmp2;
GstCaps *result;
/* Get all possible caps that we can transform to */
tmp = gst_gl_upload_caps_remove_format_info (caps);
GST_DEBUG_OBJECT (bt, "intersecting %" GST_PTR_FORMAT " with %"
GST_PTR_FORMAT, filter, tmp);
if (filter) {
tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
tmp = tmp2;
}
result = tmp;
GST_DEBUG_OBJECT (bt, "transformed %" GST_PTR_FORMAT " into %"
GST_PTR_FORMAT, caps, result);
return result;
}
/* from gst-plugins-base "videoscale" code */
static GstCaps *
gst_gl_upload_fixate_caps (GstBaseTransform * base, GstPadDirection direction,
GstCaps * caps, GstCaps * othercaps)
{
GstStructure *outs;
othercaps = gst_caps_truncate (othercaps);
othercaps = gst_caps_make_writable (othercaps);
GST_DEBUG_OBJECT (base, "trying to fixate othercaps %" GST_PTR_FORMAT
" based on caps %" GST_PTR_FORMAT, othercaps, caps);
outs = gst_caps_get_structure (othercaps, 0);
gst_structure_fixate_field_nearest_int (outs, "width", DEFAULT_WIDTH);
gst_structure_fixate_field_nearest_int (outs, "height", DEFAULT_HEIGHT);
gst_structure_fixate_field_string (outs, "format", DEFAULT_FORMAT);
GST_DEBUG_OBJECT (base, "fixated othercaps to %" GST_PTR_FORMAT, othercaps);
return othercaps;
}
static gboolean
gst_gl_upload_set_caps (GstBaseTransform * bt, GstCaps * incaps,
GstCaps * outcaps)
{
GstGLUpload *upload;
gboolean ret;
GstVideoInfo in_vinfo, out_vinfo;
GST_DEBUG ("called with %" GST_PTR_FORMAT, incaps);
upload = GST_GL_UPLOAD (bt);
ret = gst_video_info_from_caps (&in_vinfo, incaps);
ret |= gst_video_info_from_caps (&out_vinfo, outcaps);
if (!ret) {
GST_DEBUG ("caps connot be parsed");
return FALSE;
}
upload->in_info = in_vinfo;
upload->out_info = out_vinfo;
//init colorspace conversion if needed
if (!gst_gl_display_init_upload (upload->display,
GST_VIDEO_INFO_FORMAT (&upload->in_info),
GST_VIDEO_INFO_WIDTH (&upload->out_info),
GST_VIDEO_INFO_HEIGHT (&upload->out_info),
GST_VIDEO_INFO_WIDTH (&upload->in_info),
GST_VIDEO_INFO_HEIGHT (&upload->in_info)))
goto display_error;
return TRUE;
/* ERRORS */
display_error:
{
GST_ELEMENT_ERROR (upload, RESOURCE, NOT_FOUND,
GST_GL_DISPLAY_ERR_MSG (upload->display), (NULL));
return FALSE;
}
}
static gboolean
gst_gl_upload_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
gsize * size)
{
gboolean ret;
GstVideoInfo vinfo;
ret = gst_video_info_from_caps (&vinfo, caps);
if (ret)
*size = GST_VIDEO_INFO_SIZE (&vinfo);
return TRUE;
}
static GstFlowReturn
gst_gl_upload_transform (GstBaseTransform * trans, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstGLUpload *upload = GST_GL_UPLOAD (trans);
GstGLMeta *gl_meta;
GstVideoFrame frame;
gl_meta = gst_buffer_get_gl_meta (outbuf);
if (!gl_meta) {
GST_WARNING ("Output buffer does not have required GstGLMeta");
}
if (!gst_video_frame_map (&frame, &upload->in_info, inbuf, GST_MAP_READ)) {
GST_WARNING ("Could not map data for reading");
goto error;
}
if (!gst_gl_display_do_upload (upload->display, gl_meta->memory->tex_id,
&frame)) {
GST_WARNING ("Failed to upload data");
}
gst_video_frame_unmap (&frame);
return GST_FLOW_OK;
/* ERRORS */
error:
{
return GST_FLOW_ERROR;
}
}
static gboolean
gst_gl_upload_decide_allocation (GstBaseTransform * trans, GstQuery * query)
{
GstGLUpload *upload = GST_GL_UPLOAD (trans);
GstBufferPool *pool = NULL;
GstStructure *config;
GstCaps *caps;
guint min, max, size;
gboolean update_pool;
gst_query_parse_allocation (query, &caps, NULL);
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
update_pool = TRUE;
} else {
GstVideoInfo vinfo;
gst_video_info_init (&vinfo);
gst_video_info_from_caps (&vinfo, caps);
size = vinfo.size;
min = max = 0;
update_pool = FALSE;
}
if (!pool)
pool = gst_gl_buffer_pool_new (upload->display);
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_GL_META);
gst_buffer_pool_set_config (pool, config);
if (update_pool)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
return TRUE;
}
static gboolean
gst_gl_upload_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query)
{
GstGLUpload *upload = GST_GL_UPLOAD (trans);
GstBufferPool *pool;
GstStructure *config;
GstCaps *caps;
guint size;
gboolean need_pool;
gst_query_parse_allocation (query, &caps, &need_pool);
if (caps == NULL)
goto no_caps;
if ((pool = upload->pool))
gst_object_ref (pool);
if (pool != NULL) {
GstCaps *pcaps;
/* we had a pool, check caps */
GST_DEBUG_OBJECT (upload, "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 (upload, "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))
goto invalid_caps;
GST_DEBUG_OBJECT (upload, "create new pool");
pool = gst_video_buffer_pool_new ();
/* the normal size of a frame */
size = info.size;
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
}
/* we need at least 2 buffer because we hold on to the last one */
gst_query_add_allocation_pool (query, pool, size, 2, 0);
/* we also support various metadata */
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, 0);
//gst_query_add_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE);
gst_query_add_allocation_meta (query, GST_GL_META_API_TYPE, 0);
gst_object_unref (pool);
return TRUE;
/* ERRORS */
no_caps:
{
GST_DEBUG_OBJECT (trans, "no caps specified");
return FALSE;
}
invalid_caps:
{
GST_DEBUG_OBJECT (trans, "invalid caps specified");
return FALSE;
}
config_failed:
{
GST_DEBUG_OBJECT (trans, "failed setting config");
return FALSE;
}
}

70
gst/gl/gstglupload.h
View file

@ -1,70 +0,0 @@
/*
* GStreamer
* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef _GST_GLUPLOAD_H_
#define _GST_GLUPLOAD_H_
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/video/video.h>
#include "gstglmeta.h"
#include "gstglbufferpool.h"
G_BEGIN_DECLS
#define GST_TYPE_GL_UPLOAD (gst_gl_upload_get_type())
#define GST_GL_UPLOAD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_UPLOAD,GstGLUpload))
#define GST_IS_GL_UPLOAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_UPLOAD))
#define GST_GL_UPLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_GL_UPLOAD,GstGLUploadClass))
#define GST_IS_GL_UPLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_GL_UPLOAD))
#define GST_GL_UPLOAD_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_GL_UPLOAD,GstGLUploadClass))
typedef struct _GstGLUpload GstGLUpload;
typedef struct _GstGLUploadClass GstGLUploadClass;
struct _GstGLUpload
{
GstBaseTransform base_transform;
GstPad *srcpad;
GstPad *sinkpad;
GstGLDisplay *display;
GstVideoInfo out_info;
GstVideoInfo in_info;
GstBufferPool *pool;
gulong external_gl_context;
};
struct _GstGLUploadClass
{
GstBaseTransformClass base_transform_class;
};
GType gst_gl_upload_get_type (void);
G_END_DECLS
#endif /* _GST_GLUPLOAD_H_ */

12
gst/gl/gstopengl.c
View file

@ -43,8 +43,6 @@
#include "config.h"
#endif
#include "gstglupload.h"
#include "gstgldownload.h"
#include "gstglimagesink.h"
#include "gstglfiltercube.h"
@ -99,16 +97,6 @@ plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (gst_gl_gstgl_debug, "gstopengl", 0, "gstopengl");
if (!gst_element_register (plugin, "glupload",
GST_RANK_NONE, GST_TYPE_GL_UPLOAD)) {
return FALSE;
}
if (!gst_element_register (plugin, "gldownload",
GST_RANK_NONE, GST_TYPE_GL_DOWNLOAD)) {
return FALSE;
}
if (!gst_element_register (plugin, "glimagesink",
GST_RANK_NONE, GST_TYPE_GLIMAGE_SINK)) {
return FALSE;