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85 lines
2.6 KiB
85 lines
2.6 KiB
/* |
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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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