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84 lines
3.1 KiB
84 lines
3.1 KiB
/* |
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* This file is part of FFmpeg. |
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* |
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* Copyright (c) 2015 Matthieu Bouron <matthieu.bouron stupeflix.com> |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg 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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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVFILTER_FRAMEPOOL_H |
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#define AVFILTER_FRAMEPOOL_H |
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#include "libavutil/buffer.h" |
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#include "libavutil/frame.h" |
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/** |
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* Video frame pool. This structure is opaque and not meant to be accessed |
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* directly. It is allocated with ff_video_frame_pool_init() and freed with |
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* ff_video_frame_pool_uninit(). |
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*/ |
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typedef struct FFVideoFramePool FFVideoFramePool; |
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/** |
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* Allocate and initialize a video frame pool. |
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* |
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* @param alloc a function that will be used to allocate new frame buffers when |
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* the pool is empty. May be NULL, then the default allocator will be used |
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* (av_buffer_alloc()). |
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* @param width width of each frame in this pool |
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* @param height height of each frame in this pool |
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* @param format format of each frame in this pool |
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* @param align buffers alignement of each frame in this pool |
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* @return newly created video frame pool on success, NULL on error. |
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*/ |
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FFVideoFramePool *ff_video_frame_pool_init(AVBufferRef* (*alloc)(int size), |
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int width, |
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int height, |
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enum AVPixelFormat format, |
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int align); |
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/** |
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* Deallocate the video frame pool. It is safe to call this function while |
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* some of the allocated video frame are still in use. |
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* |
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* @param pool pointer to the video frame pool to be freed. It will be set to NULL. |
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*/ |
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void ff_video_frame_pool_uninit(FFVideoFramePool **pool); |
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/** |
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* Get the video frame pool configuration. |
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* |
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* @param width width of each frame in this pool |
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* @param height height of each frame in this pool |
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* @param format format of each frame in this pool |
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* @param align buffers alignement of each frame in this pool |
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* @return 0 on success, a negative AVERROR otherwise. |
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*/ |
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int ff_video_frame_pool_get_config(FFVideoFramePool *pool, |
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int *width, |
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int *height, |
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enum AVPixelFormat *format, |
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int *align); |
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/** |
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* Allocate a new AVFrame, reussing old buffers from the pool when available. |
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* This function may be called simultaneously from multiple threads. |
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* |
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* @return a new AVFrame on success, NULL on error. |
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*/ |
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AVFrame *ff_video_frame_pool_get(FFVideoFramePool *pool); |
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#endif /* AVFILTER_FRAMEPOOL_H */
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