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76 lines
2.2 KiB
76 lines
2.2 KiB
/* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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/buffer.h" |
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#include "libavutil/hwcontext.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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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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/* TODO: set the buffer's priv member to a context structure for the whole |
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* filter chain. This will allow for a buffer pool instead of the constant |
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* alloc & free cycle currently implemented. */ |
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AVFrame *ff_default_get_video_buffer(AVFilterLink *link, int w, int h) |
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{ |
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AVFrame *frame = av_frame_alloc(); |
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int ret; |
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if (!frame) |
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return NULL; |
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if (link->hw_frames_ctx && |
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((AVHWFramesContext*)link->hw_frames_ctx->data)->format == link->format) { |
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ret = av_hwframe_get_buffer(link->hw_frames_ctx, frame, 0); |
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} else { |
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frame->width = w; |
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frame->height = h; |
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frame->format = link->format; |
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ret = av_frame_get_buffer(frame, 32); |
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} |
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if (ret < 0) |
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av_frame_free(&frame); |
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return frame; |
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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_DPRINTF_START(NULL, get_video_buffer); ff_dlog_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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