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89 lines
2.8 KiB
89 lines
2.8 KiB
/* |
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* Copyright 2007 Bobby Bingham |
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* Copyright Stefano Sabatini <stefasab gmail com> |
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* Copyright Vitor Sessak <vitor1001 gmail com> |
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* |
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* This file is part of FFmpeg. |
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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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#include <string.h> |
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#include <stdio.h> |
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#include "libavutil/avassert.h" |
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#include "libavutil/buffer.h" |
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#include "libavutil/imgutils.h" |
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#include "libavutil/mem.h" |
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#include "avfilter.h" |
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#include "internal.h" |
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#include "video.h" |
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#define BUFFER_ALIGN 32 |
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AVFrame *ff_null_get_video_buffer(AVFilterLink *link, int w, int h) |
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{ |
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return ff_get_video_buffer(link->dst->outputs[0], w, h); |
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} |
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AVFrame *ff_default_get_video_buffer(AVFilterLink *link, int w, int h) |
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{ |
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int pool_width = 0; |
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int pool_height = 0; |
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int pool_align = 0; |
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enum AVPixelFormat pool_format = AV_PIX_FMT_NONE; |
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if (!link->frame_pool) { |
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link->frame_pool = ff_frame_pool_video_init(av_buffer_allocz, w, h, |
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link->format, BUFFER_ALIGN); |
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if (!link->frame_pool) |
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return NULL; |
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} else { |
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if (ff_frame_pool_get_video_config(link->frame_pool, |
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&pool_width, &pool_height, |
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&pool_format, &pool_align) < 0) { |
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return NULL; |
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} |
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if (pool_width != w || pool_height != h || |
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pool_format != link->format || pool_align != BUFFER_ALIGN) { |
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ff_frame_pool_uninit((FFFramePool **)&link->frame_pool); |
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link->frame_pool = ff_frame_pool_video_init(av_buffer_allocz, w, h, |
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link->format, BUFFER_ALIGN); |
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if (!link->frame_pool) |
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return NULL; |
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} |
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} |
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return ff_frame_pool_get(link->frame_pool); |
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} |
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AVFrame *ff_get_video_buffer(AVFilterLink *link, int w, int h) |
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{ |
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AVFrame *ret = NULL; |
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FF_TPRINTF_START(NULL, get_video_buffer); ff_tlog_link(NULL, link, 0); |
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if (link->dstpad->get_video_buffer) |
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ret = link->dstpad->get_video_buffer(link, w, h); |
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if (!ret) |
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ret = ff_default_get_video_buffer(link, w, h); |
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return ret; |
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}
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