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47cd3c88c5
Up until now the documentation of ff_bsf_get_packet_ref() allowed return values >= 0 in case of success, whereas av_bsf_receive_packet() only allows 0 on success. Given that for some bitstream filters the return value of ff_bsf_get_packet_ref() is forwarded to the caller of av_bsf_receive_packet() without any filtering, there would be a problem if ff_bsf_get_packet_ref() actually returned values > 0. But it currently doesn't and there is no reason why it should ever do so. Therefore this commit aligns the return values of these functions by restricting ff_bsf_get_packet_ref() to always returns 0 on success. Reviewed-by: James Almer <jamrial@gmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
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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 AVCODEC_BSF_H
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#define AVCODEC_BSF_H
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#include "avcodec.h"
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/**
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* Called by the bitstream filters to get the next packet for filtering.
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* The filter is responsible for either freeing the packet or passing it to the
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* caller.
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*/
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int ff_bsf_get_packet(AVBSFContext *ctx, AVPacket **pkt);
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/**
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* Called by bitstream filters to get packet for filtering.
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* The reference to packet is moved to provided packet structure.
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*
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* @param ctx pointer to AVBSFContext of filter
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* @param pkt pointer to packet to move reference to
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*
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* @return 0 on success, negative AVERROR in case of failure
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*/
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int ff_bsf_get_packet_ref(AVBSFContext *ctx, AVPacket *pkt);
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const AVClass *ff_bsf_child_class_next(const AVClass *prev);
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#endif /* AVCODEC_BSF_H */
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