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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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377 lines
10 KiB
C
377 lines
10 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 "gstgluploadmeta.h"
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/**
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* SECTION:gstgluploadmeta
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* @short_description: an object that provides #GstVideoGLTextureUploadMeta
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* @see_also: #GstGLUpload, #GstGLMemory
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*
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* #GstGLUploadMeta 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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/* *INDENT-OFF* */
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struct _GstGLUploadMetaPrivate
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{
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GstBuffer *buffer;
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gboolean initted;
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GstGLMemory *in_tex[GST_VIDEO_MAX_PLANES];
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GstGLMemory *out_tex[GST_VIDEO_MAX_PLANES];
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};
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GST_DEBUG_CATEGORY_STATIC (gst_gl_upload_meta_debug);
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#define GST_CAT_DEFAULT gst_gl_upload_meta_debug
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#define DEBUG_INIT \
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GST_DEBUG_CATEGORY_INIT (gst_gl_upload_meta_debug, "gluploadmeta", 0, "uploadmeta");
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G_DEFINE_TYPE_WITH_CODE (GstGLUploadMeta, gst_gl_upload_meta, GST_TYPE_OBJECT, DEBUG_INIT);
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static void gst_gl_upload_meta_finalize (GObject * object);
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static void gst_gl_upload_meta_reset (GstGLUploadMeta * upload);
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#define GST_GL_UPLOAD_META_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
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GST_TYPE_GL_UPLOAD_META, GstGLUploadMetaPrivate))
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static void
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gst_gl_upload_meta_class_init (GstGLUploadMetaClass * klass)
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{
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g_type_class_add_private (klass, sizeof (GstGLUploadMetaPrivate));
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G_OBJECT_CLASS (klass)->finalize = gst_gl_upload_meta_finalize;
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}
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static void
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gst_gl_upload_meta_init (GstGLUploadMeta * upload)
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{
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upload->priv = GST_GL_UPLOAD_META_GET_PRIVATE (upload);
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upload->context = NULL;
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gst_video_info_set_format (&upload->info, GST_VIDEO_FORMAT_ENCODED, 0, 0);
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}
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/**
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* gst_gl_upload_meta_new:
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* @context: a #GstGLContext
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*
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* Returns: a new #GstGLUploadMeta object
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*/
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GstGLUploadMeta *
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gst_gl_upload_meta_new (GstGLContext * context)
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{
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GstGLUploadMeta *upload;
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upload = g_object_new (GST_TYPE_GL_UPLOAD_META, NULL);
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upload->context = gst_object_ref (context);
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return upload;
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}
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static void
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gst_gl_upload_meta_finalize (GObject * object)
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{
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GstGLUploadMeta *upload;
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upload = GST_GL_UPLOAD_META (object);
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gst_gl_upload_meta_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_meta_parent_class)->finalize (object);
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}
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static void
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gst_gl_upload_meta_reset (GstGLUploadMeta * upload)
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{
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guint i;
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for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
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if (upload->priv->out_tex[i]) {
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gst_memory_unref ((GstMemory *) upload->priv->out_tex[i]);
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upload->priv->out_tex[i] = NULL;
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}
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}
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for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
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if (upload->priv->in_tex[i]) {
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gst_memory_unref ((GstMemory *) upload->priv->in_tex[i]);
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upload->priv->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_meta_set_format_unlocked (GstGLUploadMeta * upload,
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GstVideoInfo *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 (info) !=
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GST_VIDEO_FORMAT_UNKNOWN);
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g_return_if_fail (GST_VIDEO_INFO_FORMAT (info) !=
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GST_VIDEO_FORMAT_ENCODED);
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if (gst_video_info_is_equal (&upload->info, info))
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return;
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gst_gl_upload_meta_reset (upload);
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upload->info = *info;
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upload->priv->initted = FALSE;
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}
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/**
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* gst_gl_upload_meta_set_format:
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* @upload: a #GstGLUpload
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* @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_meta_set_format (GstGLUploadMeta * upload, GstVideoInfo * info)
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{
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GST_OBJECT_LOCK (upload);
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_gst_gl_upload_meta_set_format_unlocked (upload, info);
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GST_OBJECT_UNLOCK (upload);
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}
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/**
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* gst_gl_upload_meta_get_format:
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* @upload: a #GstGLUpload
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*
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* Returns: (transfer none): The #GstVideoInfo set by
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* gst_gl_upload_meta_set_format()
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*/
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GstVideoInfo *
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gst_gl_upload_meta_get_format (GstGLUploadMeta * 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->info;
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GST_OBJECT_LOCK (upload);
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return ret;
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}
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static gboolean
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_perform_with_gl_memory (GstGLUploadMeta * upload, GstVideoGLTextureUploadMeta *
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meta, guint texture_id[4])
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{
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gboolean res = TRUE;
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gint i;
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for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->info); i++) {
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GstGLMemory *in_mem = upload->priv->in_tex[i];
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if (GST_GL_MEMORY_FLAG_IS_SET (in_mem, GST_GL_MEMORY_FLAG_NEED_UPLOAD)) {
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GstMapInfo map_info;
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guint tex_id;
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tex_id = in_mem->tex_id;
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in_mem->tex_id = texture_id[i];
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if (!gst_memory_map ((GstMemory *) in_mem, &map_info, GST_MAP_READ | GST_MAP_GL)) {
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GST_WARNING_OBJECT (upload, "Failed to map GL memory");
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res = FALSE;
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}
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gst_memory_unmap ((GstMemory *) in_mem, &map_info);
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in_mem->tex_id = tex_id;
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GST_GL_MEMORY_FLAG_SET (in_mem, GST_GL_MEMORY_FLAG_NEED_UPLOAD);
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} else {
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GstGLMemory *out_mem;
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gint mem_width, mem_height;
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if (!upload->priv->out_tex[i])
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upload->priv->out_tex[i] = gst_gl_memory_wrapped_texture (upload->context,
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texture_id[i], &upload->info, i, NULL, NULL);
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out_mem = upload->priv->out_tex[i];
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if (out_mem->tex_id != texture_id[i]) {
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out_mem->tex_id = texture_id[i];
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GST_GL_MEMORY_FLAG_SET (out_mem, GST_GL_MEMORY_FLAG_NEED_DOWNLOAD);
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}
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mem_width = gst_gl_memory_get_texture_width (out_mem);
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mem_height = gst_gl_memory_get_texture_height (out_mem);
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if (!(res = gst_gl_memory_copy_into_texture (in_mem, out_mem->tex_id,
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out_mem->tex_type, mem_width, mem_height,
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GST_VIDEO_INFO_PLANE_STRIDE (&out_mem->info, out_mem->plane),
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FALSE)))
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break;
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}
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}
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return res;
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}
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static gboolean
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_perform_with_data_unlocked (GstGLUploadMeta * upload,
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GstVideoGLTextureUploadMeta * meta,
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gpointer data[GST_VIDEO_MAX_PLANES], guint texture_id[4])
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{
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guint i;
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for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->info); i++) {
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if (!upload->priv->in_tex[i])
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upload->priv->in_tex[i] = gst_gl_memory_wrapped (upload->context,
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&upload->info, i, data[i], NULL, NULL);
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upload->priv->in_tex[i]->data = data[i];
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}
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return _perform_with_gl_memory (upload, meta, texture_id);
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}
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static gboolean
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_perform_for_gl_texture_upload_meta (GstVideoGLTextureUploadMeta *
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meta, guint texture_id[4])
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{
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GstGLUploadMeta *upload;
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GstVideoFrame frame;
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GstMemory *mem;
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gboolean ret;
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guint i, n;
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g_return_val_if_fail (meta != NULL, FALSE);
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g_return_val_if_fail (texture_id != NULL, FALSE);
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upload = meta->user_data;
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GST_OBJECT_LOCK (upload);
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if (!upload->priv->initted) {
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GstVideoInfo info;
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GstVideoMeta *v_meta = gst_buffer_get_video_meta (upload->priv->buffer);
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gint i;
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if (!(ret = v_meta != NULL))
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goto out;
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gst_video_info_init (&info);
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info.finfo = gst_video_format_get_info (v_meta->format);
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info.width = v_meta->width;
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info.height = v_meta->height;
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for (i = 0; i < info.finfo->n_planes; i++) {
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info.offset[i] = v_meta->offset[i];
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info.stride[i] = v_meta->stride[i];
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}
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_gst_gl_upload_meta_set_format_unlocked (upload, &info);
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upload->priv->initted = TRUE;
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}
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GST_LOG ("Uploading for meta with textures %i,%i,%i,%i", texture_id[0],
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texture_id[1], texture_id[2], texture_id[3]);
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/* GstGLMemory */
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n = gst_buffer_n_memory (upload->priv->buffer);
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mem = gst_buffer_peek_memory (upload->priv->buffer, 0);
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if (gst_is_gl_memory (mem) && n == GST_VIDEO_INFO_N_PLANES (&upload->info)) {
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for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->info); i++)
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upload->priv->in_tex[i] = (GstGLMemory *) gst_buffer_peek_memory (upload->priv->buffer, i);
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ret = _perform_with_gl_memory (upload, meta, texture_id);
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for (i = 0; i < GST_VIDEO_INFO_N_PLANES (&upload->info); i++)
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upload->priv->in_tex[i] = NULL;
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if (ret)
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goto out;
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}
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if (!(ret = gst_video_frame_map (&frame, &upload->info, upload->priv->buffer,
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GST_MAP_READ))) {
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GST_ERROR ("failed to map video frame");
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goto out;
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}
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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_meta_set_format_unlocked (upload, &frame.info);
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ret = _perform_with_data_unlocked (upload, meta, frame.data, texture_id);
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gst_video_frame_unmap (&frame);
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out:
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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_meta_add_to_buffer:
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* @upload: a #GstGLUploadMeta
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* @buffer: a #GstBuffer
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*
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* Adds a #GstVideoGLTextureUploadMeta on @buffer using @upload
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*
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* Returns: whether it was successful
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*/
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gboolean
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gst_gl_upload_meta_add_to_buffer (GstGLUploadMeta * upload, GstBuffer * buffer)
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{
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GstVideoGLTextureType texture_types[GST_VIDEO_MAX_PLANES];
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GstVideoMeta *v_meta;
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gint i;
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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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v_meta = gst_buffer_get_video_meta (buffer);
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g_return_val_if_fail (v_meta != NULL, FALSE);
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upload->priv->buffer = buffer;
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for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
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texture_types[i] = gst_gl_texture_type_from_format (upload->context, v_meta->format, i);
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}
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gst_buffer_add_video_gl_texture_upload_meta (buffer,
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GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL, 1, texture_types,
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_perform_for_gl_texture_upload_meta, gst_object_ref (upload),
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gst_object_ref, gst_object_unref);
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return TRUE;
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}
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