1 /* 2 * Copyright (C) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef GST_CONSUMER_SURFACE_POOL_H 17 #define GST_CONSUMER_SURFACE_POOL_H 18 19 #include <gst/gst.h> 20 #include <gst/video/gstvideopool.h> 21 #include "surface.h" 22 23 G_BEGIN_DECLS 24 25 #define GST_TYPE_CONSUMER_SURFACE_POOL (gst_consumer_surface_pool_get_type()) 26 #define GST_CONSUMER_SURFACE_POOL(obj) \ 27 (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_CONSUMER_SURFACE_POOL, GstConsumerSurfacePool)) 28 #define GST_CONSUMER_SURFACE_POOL_CLASS(klass) \ 29 (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_CONSUMER_SURFACE_POOL, GstConsumerSurfacePoolClass)) 30 #define GST_CONSUMER_SURFACE_POOL_GET_CLASS(obj) \ 31 (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_CONSUMER_SURFACE_POOL, GstConsumerSurfacePoolClass)) 32 #define GST_IS_CONSUMER_SURFACE_POOL(obj) \ 33 (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_CONSUMER_SURFACE_POOL)) 34 #define GST_IS_CONSUMER_SURFACE_POOL_CLASS(klass) \ 35 (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_CONSUMER_SURFACE_POOL)) 36 #define GST_CONSUMER_SURFACE_POOL_CAST(obj) ((GstConsumerSurfacePool*)(obj)) 37 38 typedef struct _GstConsumerSurfacePool GstConsumerSurfacePool; 39 typedef struct _GstConsumerSurfacePoolClass GstConsumerSurfacePoolClass; 40 typedef struct _GstConsumerSurfacePoolPrivate GstConsumerSurfacePoolPrivate; 41 42 /* 1. The acquire and release functions are overloaded and the queue is no longer used. 43 * 2. GstConsumerSurfacePool is mainly used to maintain the surface buffer. 44 */ 45 struct _GstConsumerSurfacePool { 46 GstVideoBufferPool basepool; 47 48 /* < private > */ 49 GstConsumerSurfacePoolPrivate *priv; 50 51 GstFlowReturn (*buffer_available) (GstConsumerSurfacePool *pool, bool *releasebuffer); 52 GstFlowReturn (*find_buffer) (GstBufferPool *pool, GstBuffer **buffer, bool *found); 53 GstFlowReturn (*get_surface_buffer) (GstConsumerSurfacePool *pool, 54 OHOS::sptr<OHOS::SurfaceBuffer> &surface_buffer, gint32 &fencefd); 55 void (*release_surface_buffer) (GstConsumerSurfacePool *pool, 56 OHOS::sptr<OHOS::SurfaceBuffer> &surface_buffer, gint32 &fencefd); 57 }; 58 59 struct _GstConsumerSurfacePoolClass { 60 GstVideoBufferPoolClass parent_class; 61 }; 62 63 GType gst_consumer_surface_pool_get_type(void); 64 65 GstBufferPool *gst_consumer_surface_pool_new(); 66 67 GstCaps *gst_consumer_surface_pool_get_caps(GstConsumerSurfacePool *pool); 68 69 void gst_consumer_surface_pool_set_surface(GstBufferPool *pool, 70 OHOS::sptr<OHOS::Surface> &consumer_surface); 71 G_END_DECLS 72 73 #endif 74