| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. If the |
| * Alliance for Open Media Patent License 1.0 was not distributed with this |
| * source code in the PATENTS file, you can obtain it at |
| * aomedia.org/license/patent-license/. |
| */ |
| |
| #ifndef AOM_AV1_COMMON_FRAME_BUFFERS_H_ |
| #define AOM_AV1_COMMON_FRAME_BUFFERS_H_ |
| |
| #include "aom/aom_frame_buffer.h" |
| #include "aom/aom_integer.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| typedef struct InternalFrameBuffer { |
| uint8_t *data; |
| size_t size; |
| int in_use; |
| } InternalFrameBuffer; |
| |
| typedef struct InternalFrameBufferList { |
| int num_internal_frame_buffers; |
| InternalFrameBuffer *int_fb; |
| } InternalFrameBufferList; |
| |
| // Initializes |list|. Returns 0 on success. |
| int av1_alloc_internal_frame_buffers(InternalFrameBufferList *list); |
| |
| // Free any data allocated to the frame buffers. |
| void av1_free_internal_frame_buffers(InternalFrameBufferList *list); |
| |
| // Zeros all unused internal frame buffers. In particular, this zeros the |
| // frame borders. Call this function after a sequence header change to |
| // re-initialize the frame borders for the different width, height, or bit |
| // depth. |
| void av1_zero_unused_internal_frame_buffers(InternalFrameBufferList *list); |
| |
| // Callback used by libaom to request an external frame buffer. |cb_priv| |
| // Callback private data, which points to an InternalFrameBufferList. |
| // |min_size| is the minimum size in bytes needed to decode the next frame. |
| // |fb| pointer to the frame buffer. |
| int av1_get_frame_buffer(void *cb_priv, size_t min_size, |
| aom_codec_frame_buffer_t *fb); |
| |
| // Callback used by libaom when there are no references to the frame buffer. |
| // |cb_priv| is not used. |fb| pointer to the frame buffer. |
| int av1_release_frame_buffer(void *cb_priv, aom_codec_frame_buffer_t *fb); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_COMMON_FRAME_BUFFERS_H_ |