86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
/*
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*
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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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#ifndef AVFILTER_BUFFERSRC_H
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#define AVFILTER_BUFFERSRC_H
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/**
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* @file
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* @ingroup lavfi_buffersrc
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* Memory buffer source API.
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*/
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#include "avfilter.h"
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/**
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* @defgroup lavfi_buffersrc Buffer source API
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* @ingroup lavfi
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* @{
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*/
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#if FF_API_AVFILTERBUFFER
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/**
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* Add a buffer to a filtergraph.
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*
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* @param ctx an instance of the buffersrc filter
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* @param buf buffer containing frame data to be passed down the filtergraph.
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* This function will take ownership of buf, the user must not free it.
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* A NULL buf signals EOF -- i.e. no more frames will be sent to this filter.
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*
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* @deprecated use av_buffersrc_write_frame() or av_buffersrc_add_frame()
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*/
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attribute_deprecated
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int av_buffersrc_buffer(AVFilterContext *ctx, AVFilterBufferRef *buf);
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#endif
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/**
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* Add a frame to the buffer source.
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*
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* @param ctx an instance of the buffersrc filter
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* @param frame frame to be added. If the frame is reference counted, this
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* function will make a new reference to it. Otherwise the frame data will be
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* copied.
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*
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* @return 0 on success, a negative AVERROR on error
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*/
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int av_buffersrc_write_frame(AVFilterContext *ctx, const AVFrame *frame);
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/**
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* Add a frame to the buffer source.
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*
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* @param ctx an instance of the buffersrc filter
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* @param frame frame to be added. If the frame is reference counted, this
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* function will take ownership of the reference(s) and reset the frame.
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* Otherwise the frame data will be copied. If this function returns an error,
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* the input frame is not touched.
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*
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* @return 0 on success, a negative AVERROR on error.
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*
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* @note the difference between this function and av_buffersrc_write_frame() is
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* that av_buffersrc_write_frame() creates a new reference to the input frame,
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* while this function takes ownership of the reference passed to it.
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*/
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int av_buffersrc_add_frame(AVFilterContext *ctx, AVFrame *frame);
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/**
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* @}
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*/
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#endif /* AVFILTER_BUFFERSRC_H */
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