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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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544 lines
15 KiB
C
544 lines
15 KiB
C
/*
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* GStreamer
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* Copyright (C) 2012-2014 Matthew Waters <ystree00@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include "gl.h"
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#include "gstglupload.h"
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#if GST_GL_HAVE_PLATFORM_EGL
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#include "egl/gsteglimagememory.h"
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#endif
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/**
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* SECTION:gstglupload
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* @short_description: an object that uploads to GL textures
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* @see_also: #GstGLDownload, #GstGLMemory
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*
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* #GstGLUpload is an object that uploads data from system memory into GL textures.
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*
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* A #GstGLUpload can be created with gst_gl_upload_new()
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*/
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#define USING_OPENGL(context) (gst_gl_context_check_gl_version (context, GST_GL_API_OPENGL, 1, 0))
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#define USING_OPENGL3(context) (gst_gl_context_check_gl_version (context, GST_GL_API_OPENGL3, 3, 1))
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#define USING_GLES(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES, 1, 0))
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#define USING_GLES2(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 2, 0))
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#define USING_GLES3(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 3, 0))
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static gboolean _upload_memory (GstGLUpload * upload);
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static gboolean _init_upload (GstGLUpload * upload);
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static gboolean _gst_gl_upload_perform_with_data_unlocked (GstGLUpload * upload,
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GLuint * texture_id, gpointer data[GST_VIDEO_MAX_PLANES]);
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static void _do_upload_with_meta (GstGLContext * context, GstGLUpload * upload);
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static void gst_gl_upload_reset (GstGLUpload * upload);
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struct _GstGLUploadPrivate
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{
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gboolean result;
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guint tex_id;
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gboolean mapped;
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GstVideoFrame frame;
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GstVideoGLTextureUploadMeta *meta;
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GstBuffer *outbuf;
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};
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GST_DEBUG_CATEGORY_STATIC (gst_gl_upload_debug);
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#define GST_CAT_DEFAULT gst_gl_upload_debug
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#define DEBUG_INIT \
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GST_DEBUG_CATEGORY_INIT (gst_gl_upload_debug, "glupload", 0, "upload");
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G_DEFINE_TYPE_WITH_CODE (GstGLUpload, gst_gl_upload, GST_TYPE_OBJECT,
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DEBUG_INIT);
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static void gst_gl_upload_finalize (GObject * object);
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#define GST_GL_UPLOAD_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
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GST_TYPE_GL_UPLOAD, GstGLUploadPrivate))
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static void
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gst_gl_upload_class_init (GstGLUploadClass * klass)
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{
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g_type_class_add_private (klass, sizeof (GstGLUploadPrivate));
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G_OBJECT_CLASS (klass)->finalize = gst_gl_upload_finalize;
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}
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static void
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gst_gl_upload_init (GstGLUpload * upload)
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{
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upload->priv = GST_GL_UPLOAD_GET_PRIVATE (upload);
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upload->context = NULL;
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upload->priv->tex_id = 0;
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gst_video_info_set_format (&upload->in_info, GST_VIDEO_FORMAT_ENCODED, 0, 0);
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}
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/**
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* gst_gl_upload_new:
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* @context: a #GstGLContext
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*
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* Returns: a new #GstGLUpload object
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*/
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GstGLUpload *
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gst_gl_upload_new (GstGLContext * context)
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{
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GstGLUpload *upload;
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upload = g_object_new (GST_TYPE_GL_UPLOAD, NULL);
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upload->context = gst_object_ref (context);
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upload->convert = gst_gl_color_convert_new (context);
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return upload;
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}
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static void
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gst_gl_upload_finalize (GObject * object)
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{
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GstGLUpload *upload;
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upload = GST_GL_UPLOAD (object);
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gst_gl_upload_reset (upload);
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if (upload->context) {
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gst_object_unref (upload->context);
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upload->context = NULL;
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}
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G_OBJECT_CLASS (gst_gl_upload_parent_class)->finalize (object);
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}
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static void
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gst_gl_upload_reset (GstGLUpload * upload)
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{
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guint i;
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if (upload->priv->tex_id) {
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gst_gl_context_del_texture (upload->context, &upload->priv->tex_id);
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upload->priv->tex_id = 0;
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}
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if (upload->convert) {
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gst_object_unref (upload->convert);
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upload->convert = NULL;
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}
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if (upload->out_tex) {
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gst_memory_unref ((GstMemory *) upload->out_tex);
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upload->out_tex = NULL;
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}
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for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
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if (upload->in_tex[i]) {
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gst_memory_unref ((GstMemory *) upload->in_tex[i]);
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upload->in_tex[i] = NULL;
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}
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}
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}
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static void
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_gst_gl_upload_set_format_unlocked (GstGLUpload * upload,
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GstVideoInfo * in_info)
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{
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g_return_if_fail (upload != NULL);
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g_return_if_fail (GST_VIDEO_INFO_FORMAT (in_info) !=
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GST_VIDEO_FORMAT_UNKNOWN);
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g_return_if_fail (GST_VIDEO_INFO_FORMAT (in_info) !=
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GST_VIDEO_FORMAT_ENCODED);
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if (gst_video_info_is_equal (&upload->in_info, in_info))
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return;
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gst_gl_upload_reset (upload);
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upload->convert = gst_gl_color_convert_new (upload->context);
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upload->in_info = *in_info;
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upload->initted = FALSE;
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}
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/**
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* gst_gl_upload_set_format:
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* @upload: a #GstGLUpload
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* @in_info: input #GstVideoInfo
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*
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* Initializes @upload with the information required for upload.
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*/
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void
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gst_gl_upload_set_format (GstGLUpload * upload, GstVideoInfo * in_info)
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{
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GST_OBJECT_LOCK (upload);
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_gst_gl_upload_set_format_unlocked (upload, in_info);
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GST_OBJECT_UNLOCK (upload);
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}
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/**
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* gst_gl_upload_get_format:
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* @upload: a #GstGLUpload
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*
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* Returns: (transfer none): The #GstVideoInfo set by gst_gl_upload_set_format()
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*/
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GstVideoInfo *
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gst_gl_upload_get_format (GstGLUpload * upload)
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{
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GstVideoInfo *ret;
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GST_OBJECT_LOCK (upload);
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ret = &upload->in_info;
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GST_OBJECT_UNLOCK (upload);
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return ret;
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}
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/**
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* gst_gl_upload_perform_with_buffer:
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* @upload: a #GstGLUpload
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* @buffer: a #GstBuffer
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* @tex_id: resulting texture
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*
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* Uploads @buffer to the texture given by @tex_id. @tex_id is valid
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* until gst_gl_upload_release_buffer() is called.
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*
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* Returns: whether the upload was successful
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*/
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gboolean
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gst_gl_upload_perform_with_buffer (GstGLUpload * upload, GstBuffer * buffer,
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guint * tex_id)
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{
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GstMemory *mem;
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GstVideoGLTextureUploadMeta *gl_tex_upload_meta;
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guint texture_ids[] = { 0, 0, 0, 0 };
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gint i;
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gboolean ret;
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g_return_val_if_fail (upload != NULL, FALSE);
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g_return_val_if_fail (buffer != NULL, FALSE);
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g_return_val_if_fail (tex_id != NULL, FALSE);
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g_return_val_if_fail (gst_buffer_n_memory (buffer) > 0, FALSE);
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/* GstGLMemory */
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mem = gst_buffer_peek_memory (buffer, 0);
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if (gst_is_gl_memory (mem)) {
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if (GST_VIDEO_INFO_FORMAT (&upload->in_info) == GST_VIDEO_FORMAT_RGBA) {
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GstMapInfo map_info;
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gst_memory_map (mem, &map_info, GST_MAP_READ | GST_MAP_GL);
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gst_memory_unmap (mem, &map_info);
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*tex_id = ((GstGLMemory *) mem)->tex_id;
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return TRUE;
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}
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GST_LOG_OBJECT (upload, "Attempting upload with GstGLMemory");
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for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->in_info); i++) {
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upload->in_tex[i] = (GstGLMemory *) gst_buffer_peek_memory (buffer, i);
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}
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ret = _upload_memory (upload);
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*tex_id = upload->out_tex->tex_id;
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for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->in_info); i++) {
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upload->in_tex[i] = NULL;
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}
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return ret;
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}
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#if GST_GL_HAVE_PLATFORM_EGL
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if (!upload->priv->tex_id && gst_is_egl_image_memory (mem))
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gst_gl_context_gen_texture (upload->context, &upload->priv->tex_id,
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GST_VIDEO_FORMAT_RGBA, 0, 0);
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#endif
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if (!upload->priv->tex_id)
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gst_gl_context_gen_texture (upload->context, &upload->priv->tex_id,
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GST_VIDEO_FORMAT_RGBA, GST_VIDEO_INFO_WIDTH (&upload->in_info),
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GST_VIDEO_INFO_HEIGHT (&upload->in_info));
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/* GstVideoGLTextureUploadMeta */
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gl_tex_upload_meta = gst_buffer_get_video_gl_texture_upload_meta (buffer);
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if (gl_tex_upload_meta) {
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GST_LOG_OBJECT (upload, "Attempting upload with "
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"GstVideoGLTextureUploadMeta");
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texture_ids[0] = upload->priv->tex_id;
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if (!gst_gl_upload_perform_with_gl_texture_upload_meta (upload,
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gl_tex_upload_meta, texture_ids)) {
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GST_DEBUG_OBJECT (upload, "Upload with GstVideoGLTextureUploadMeta "
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"failed");
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} else {
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upload->priv->mapped = FALSE;
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*tex_id = upload->priv->tex_id;
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return TRUE;
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}
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}
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GST_LOG_OBJECT (upload, "Attempting upload with raw data");
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/* GstVideoMeta map */
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if (!gst_video_frame_map (&upload->priv->frame, &upload->in_info, buffer,
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GST_MAP_READ)) {
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GST_ERROR_OBJECT (upload, "Failed to map memory");
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return FALSE;
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}
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upload->priv->mapped = TRUE;
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/* update the video info from the one updated by frame_map using video meta */
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gst_gl_upload_set_format (upload, &upload->priv->frame.info);
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if (!gst_gl_upload_perform_with_data (upload, tex_id,
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upload->priv->frame.data)) {
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return FALSE;
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}
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return TRUE;
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}
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void
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gst_gl_upload_release_buffer (GstGLUpload * upload)
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{
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g_return_if_fail (upload != NULL);
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if (upload->priv->mapped)
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gst_video_frame_unmap (&upload->priv->frame);
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upload->priv->mapped = FALSE;
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if (upload->priv->outbuf) {
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gst_buffer_unref (upload->priv->outbuf);
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upload->priv->outbuf = NULL;
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}
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}
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/*
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* Uploads using gst_video_gl_texture_upload_meta_upload().
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* i.e. consumer of GstVideoGLTextureUploadMeta
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*/
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static void
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_do_upload_with_meta (GstGLContext * context, GstGLUpload * upload)
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{
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guint texture_ids[] = { upload->priv->tex_id, 0, 0, 0 };
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if (!gst_video_gl_texture_upload_meta_upload (upload->priv->meta,
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texture_ids))
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goto error;
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upload->priv->result = TRUE;
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return;
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error:
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upload->priv->result = FALSE;
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}
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/**
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* gst_gl_upload_perform_with_gl_texture_upload_meta:
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* @upload: a #GstGLUpload
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* @meta: a #GstVideoGLTextureUploadMeta
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* @texture_id: resulting GL textures to place the data into.
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*
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* Uploads @meta into @texture_id.
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*
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* Returns: whether the upload was successful
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*/
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gboolean
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gst_gl_upload_perform_with_gl_texture_upload_meta (GstGLUpload * upload,
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GstVideoGLTextureUploadMeta * meta, guint texture_id[4])
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{
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gboolean ret;
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g_return_val_if_fail (upload != NULL, FALSE);
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g_return_val_if_fail (meta != NULL, FALSE);
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if (meta->texture_orientation !=
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GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL)
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GST_FIXME_OBJECT (upload, "only x-normal,y-normal textures supported, "
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"the images will not appear the right way up");
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if (meta->texture_type[0] != GST_VIDEO_GL_TEXTURE_TYPE_RGBA) {
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GST_FIXME_OBJECT (upload, "only single rgba texture supported");
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return FALSE;
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}
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GST_OBJECT_LOCK (upload);
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upload->priv->meta = meta;
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if (!upload->priv->tex_id)
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gst_gl_context_gen_texture (upload->context, &upload->priv->tex_id,
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GST_VIDEO_FORMAT_RGBA, GST_VIDEO_INFO_WIDTH (&upload->in_info),
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GST_VIDEO_INFO_HEIGHT (&upload->in_info));
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GST_LOG ("Uploading with GLTextureUploadMeta with textures %i,%i,%i,%i",
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texture_id[0], texture_id[1], texture_id[2], texture_id[3]);
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gst_gl_context_thread_add (upload->context,
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(GstGLContextThreadFunc) _do_upload_with_meta, upload);
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ret = upload->priv->result;
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GST_OBJECT_UNLOCK (upload);
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return ret;
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}
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/**
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* gst_gl_upload_perform_with_data:
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* @upload: a #GstGLUpload
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* @texture_id: (out): the texture id to upload into
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* @data: where the downloaded data should go
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*
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* Uploads @data into @texture_id. data size and format is specified by
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* the #GstVideoInfo<!-- -->s passed to gst_gl_upload_set_format()
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*
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* Returns: whether the upload was successful
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*/
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gboolean
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gst_gl_upload_perform_with_data (GstGLUpload * upload, GLuint * texture_id,
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gpointer data[GST_VIDEO_MAX_PLANES])
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{
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gboolean ret;
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g_return_val_if_fail (upload != NULL, FALSE);
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GST_OBJECT_LOCK (upload);
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ret = _gst_gl_upload_perform_with_data_unlocked (upload, texture_id, data);
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GST_OBJECT_UNLOCK (upload);
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return ret;
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}
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static gboolean
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_gst_gl_upload_perform_with_data_unlocked (GstGLUpload * upload,
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GLuint * texture_id, gpointer data[GST_VIDEO_MAX_PLANES])
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{
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gboolean ret;
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guint i;
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g_return_val_if_fail (upload != NULL, FALSE);
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g_return_val_if_fail (texture_id != NULL, FALSE);
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if (!upload->in_tex[0])
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gst_gl_memory_setup_wrapped (upload->context, &upload->in_info, data,
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upload->in_tex);
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for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
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if (upload->in_tex[i] && upload->in_tex[i]->data != data[i]) {
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upload->in_tex[i]->data = data[i];
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GST_GL_MEMORY_FLAG_SET (upload->in_tex[i],
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GST_GL_MEMORY_FLAG_NEED_UPLOAD);
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}
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}
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ret = _upload_memory (upload);
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*texture_id = upload->out_tex->tex_id;
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return ret;
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}
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/* Called in the gl thread */
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static gboolean
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_init_upload (GstGLUpload * upload)
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{
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GstGLFuncs *gl;
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GstVideoFormat v_format;
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GstVideoInfo out_info;
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gl = upload->context->gl_vtable;
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v_format = GST_VIDEO_INFO_FORMAT (&upload->in_info);
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GST_INFO ("Initializing texture upload for format:%s",
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gst_video_format_to_string (v_format));
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if (!gl->CreateProgramObject && !gl->CreateProgram) {
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gst_gl_context_set_error (upload->context,
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"Cannot upload YUV formats without OpenGL shaders");
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goto error;
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}
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gst_video_info_set_format (&out_info, GST_VIDEO_FORMAT_RGBA,
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GST_VIDEO_INFO_WIDTH (&upload->in_info),
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GST_VIDEO_INFO_HEIGHT (&upload->in_info));
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gst_gl_color_convert_set_format (upload->convert, &upload->in_info,
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&out_info);
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upload->out_tex = gst_gl_memory_wrapped_texture (upload->context, 0,
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GST_VIDEO_GL_TEXTURE_TYPE_RGBA, GST_VIDEO_INFO_WIDTH (&upload->in_info),
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GST_VIDEO_INFO_HEIGHT (&upload->in_info), NULL, NULL);
|
|
|
|
upload->initted = TRUE;
|
|
|
|
return TRUE;
|
|
|
|
error:
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
_upload_memory (GstGLUpload * upload)
|
|
{
|
|
guint in_width, in_height;
|
|
guint in_texture[GST_VIDEO_MAX_PLANES];
|
|
GstBuffer *inbuf;
|
|
GstVideoFrame out_frame;
|
|
GstVideoInfo out_info;
|
|
gint i;
|
|
|
|
in_width = GST_VIDEO_INFO_WIDTH (&upload->in_info);
|
|
in_height = GST_VIDEO_INFO_HEIGHT (&upload->in_info);
|
|
|
|
if (!upload->initted) {
|
|
if (!_init_upload (upload)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
inbuf = gst_buffer_new ();
|
|
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->in_info); i++) {
|
|
in_texture[i] = upload->in_tex[i]->tex_id;
|
|
gst_buffer_append_memory (inbuf,
|
|
gst_memory_ref ((GstMemory *) upload->in_tex[i]));
|
|
}
|
|
|
|
GST_TRACE ("uploading with textures:%u,%u,%u dimensions:%ux%u",
|
|
in_texture[0], in_texture[1], in_texture[2], in_width, in_height);
|
|
|
|
upload->priv->outbuf = gst_gl_color_convert_perform (upload->convert, inbuf);
|
|
gst_buffer_unref (inbuf);
|
|
|
|
gst_video_info_set_format (&out_info, GST_VIDEO_FORMAT_RGBA, in_width,
|
|
in_height);
|
|
if (!gst_video_frame_map (&out_frame, &out_info, upload->priv->outbuf,
|
|
GST_MAP_READ | GST_MAP_GL)) {
|
|
gst_buffer_unref (upload->priv->outbuf);
|
|
upload->priv->outbuf = NULL;
|
|
return FALSE;
|
|
}
|
|
|
|
upload->out_tex->tex_id = *(guint *) out_frame.data[0];
|
|
|
|
gst_video_frame_unmap (&out_frame);
|
|
|
|
return TRUE;
|
|
}
|