1/* 2 * Copyright (c) 2014 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11#ifndef VP9_COMMON_VP9_FRAME_BUFFERS_H_ 12#define VP9_COMMON_VP9_FRAME_BUFFERS_H_ 13 14#include "vpx/vpx_frame_buffer.h" 15#include "vpx/vpx_integer.h" 16 17#ifdef __cplusplus 18extern "C" { 19#endif 20 21typedef struct InternalFrameBuffer { 22 uint8_t *data; 23 size_t size; 24 int in_use; 25} InternalFrameBuffer; 26 27typedef struct InternalFrameBufferList { 28 int num_internal_frame_buffers; 29 InternalFrameBuffer *int_fb; 30} InternalFrameBufferList; 31 32// Initializes |list|. Returns 0 on success. 33int vp9_alloc_internal_frame_buffers(InternalFrameBufferList *list); 34 35// Free any data allocated to the frame buffers. 36void vp9_free_internal_frame_buffers(InternalFrameBufferList *list); 37 38// Callback used by libvpx to request an external frame buffer. |cb_priv| 39// Callback private data, which points to an InternalFrameBufferList. 40// |min_size| is the minimum size in bytes needed to decode the next frame. 41// |fb| pointer to the frame buffer. 42int vp9_get_frame_buffer(void *cb_priv, size_t min_size, 43 vpx_codec_frame_buffer_t *fb); 44 45// Callback used by libvpx when there are no references to the frame buffer. 46// |cb_priv| is not used. |fb| pointer to the frame buffer. 47int vp9_release_frame_buffer(void *cb_priv, vpx_codec_frame_buffer_t *fb); 48 49#ifdef __cplusplus 50} // extern "C" 51#endif 52 53#endif // VP9_COMMON_VP9_FRAME_BUFFERS_H_ 54