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13c6252536
Same calculation as for RGBA etc to create unpremultiplied output. Useful for creating an intermediate "Mix/Effects bank", in vision mixer (switcher) terminology. Example command: ffmpeg -i input.mov -vf "[in]scale=iw:ih:interl=1,format=yuv420p[bg];movie=BBC_blocks_watermark.png,scale=iw:ih:interl=1,format=yuva420p[dog];movie=Kickabout_strap.mov,scale=iw:ih:interl=1,format=yuva420p[strap];[strap][dog]overlay=0:0[me1];[bg][me1]overlay=0:0,scale=0:0:interl=1[out]" -b:v 3M -an output.mov Fix trac ticket #549. Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/*
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* Version macros.
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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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#ifndef AVFILTER_VERSION_H
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#define AVFILTER_VERSION_H
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/**
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* @file
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* Libavfilter version macros
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*/
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#include "libavutil/avutil.h"
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#define LIBAVFILTER_VERSION_MAJOR 3
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#define LIBAVFILTER_VERSION_MINOR 23
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#define LIBAVFILTER_VERSION_MICRO 103
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#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
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LIBAVFILTER_VERSION_MINOR, \
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LIBAVFILTER_VERSION_MICRO)
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#define LIBAVFILTER_VERSION AV_VERSION(LIBAVFILTER_VERSION_MAJOR, \
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LIBAVFILTER_VERSION_MINOR, \
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LIBAVFILTER_VERSION_MICRO)
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#define LIBAVFILTER_BUILD LIBAVFILTER_VERSION_INT
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#define LIBAVFILTER_IDENT "Lavfi" AV_STRINGIFY(LIBAVFILTER_VERSION)
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/**
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* FF_API_* defines may be placed below to indicate public API that will be
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* dropped at a future version bump. The defines themselves are not part of
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* the public API and may change, break or disappear at any time.
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*/
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#ifndef FF_API_OLD_ALL_FORMATS_API
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#define FF_API_OLD_ALL_FORMATS_API (LIBAVFILTER_VERSION_MAJOR < 3)
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#endif
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#ifndef FF_API_AVFILTERPAD_PUBLIC
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#define FF_API_AVFILTERPAD_PUBLIC (LIBAVFILTER_VERSION_MAJOR < 4)
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#endif
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#ifndef FF_API_FOO_COUNT
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#define FF_API_FOO_COUNT (LIBAVFILTER_VERSION_MAJOR < 4)
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#endif
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#ifndef FF_API_FILL_FRAME
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#define FF_API_FILL_FRAME (LIBAVFILTER_VERSION_MAJOR < 4)
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#endif
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#ifndef FF_API_BUFFERSRC_BUFFER
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#define FF_API_BUFFERSRC_BUFFER (LIBAVFILTER_VERSION_MAJOR < 4)
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#endif
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#endif /* AVFILTER_VERSION_H */
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