1 /* 2 * GStreamer 3 * Copyright (C) 2019 Matthew Waters <matthew@centricular.com> 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public 16 * License along with this library; if not, write to the 17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21 #ifndef _VK_DOWNLOAD_H_ 22 #define _VK_DOWNLOAD_H_ 23 24 #include <gst/gst.h> 25 #include <gst/video/video.h> 26 #include <gst/vulkan/vulkan.h> 27 28 G_BEGIN_DECLS 29 30 #define GST_TYPE_VULKAN_DOWNLOAD (gst_vulkan_download_get_type()) 31 #define GST_VULKAN_DOWNLOAD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VULKAN_DOWNLOAD,GstVulkanDownload)) 32 #define GST_VULKAN_DOWNLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VULKAN_DOWNLOAD,GstVulkanDownloadClass)) 33 #define GST_IS_VULKAN_DOWNLOAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VULKAN_DOWNLOAD)) 34 #define GST_IS_VULKAN_DOWNLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VULKAN_DOWNLOAD)) 35 36 typedef struct _GstVulkanDownload GstVulkanDownload; 37 typedef struct _GstVulkanDownloadClass GstVulkanDownloadClass; 38 39 struct DownloadMethod 40 { 41 const gchar *name; 42 43 GstStaticCaps *in_template; 44 GstStaticCaps *out_template; 45 46 gpointer (*new_impl) (GstVulkanDownload * download); 47 GstCaps * (*transform_caps) (gpointer impl, 48 GstPadDirection direction, 49 GstCaps * caps); 50 gboolean (*set_caps) (gpointer impl, 51 GstCaps * in_caps, 52 GstCaps * out_caps); 53 void (*propose_allocation) (gpointer impl, 54 GstQuery * decide_query, 55 GstQuery * query); 56 GstFlowReturn (*perform) (gpointer impl, 57 GstBuffer * buffer, 58 GstBuffer ** outbuf); 59 void (*free) (gpointer impl); 60 }; 61 62 struct _GstVulkanDownload 63 { 64 GstBaseTransform parent; 65 66 GstVulkanInstance *instance; 67 GstVulkanDevice *device; 68 GstVulkanQueue *queue; 69 70 GstCaps *in_caps; 71 GstCaps *out_caps; 72 73 /* all impl pointers */ 74 gpointer *download_impls; 75 guint current_impl; 76 }; 77 78 struct _GstVulkanDownloadClass 79 { 80 GstBaseTransformClass video_sink_class; 81 }; 82 83 GType gst_vulkan_download_get_type(void); 84 85 G_END_DECLS 86 87 #endif 88