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57 lines
2.1 KiB
57 lines
2.1 KiB
3 years ago
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/*
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* copyright (c) 2001 Fabrice Bellard
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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 AVFORMAT_RAWUTILS_H
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#define AVFORMAT_RAWUTILS_H
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#include <stdint.h>
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#include "libavcodec/codec_par.h"
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#include "libavcodec/packet.h"
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#include "avformat.h"
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#define CONTAINS_PAL 2
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/**
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* Reshuffles the lines to use the user specified stride.
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*
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* @param ppkt input and output packet
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* @return negative error code or
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* 0 if no new packet was allocated
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* non-zero if a new packet was allocated and ppkt has to be freed
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* CONTAINS_PAL if in addition to a new packet the old contained a palette
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*/
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int ff_reshuffle_raw_rgb(AVFormatContext *s, AVPacket **ppkt, AVCodecParameters *par, int expected_stride);
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/**
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* Retrieves the palette from a packet, either from side data, or
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* appended to the video data in the packet itself (raw video only).
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* It is commonly used after a call to ff_reshuffle_raw_rgb().
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*
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* Use 0 for the ret parameter to check for side data only.
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*
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* @param pkt pointer to packet before calling ff_reshuffle_raw_rgb()
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* @param ret return value from ff_reshuffle_raw_rgb(), or 0
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* @param palette pointer to palette buffer
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* @return negative error code or
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* 1 if the packet has a palette, else 0
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*/
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int ff_get_packet_palette(AVFormatContext *s, AVPacket *pkt, int ret, uint32_t *palette);
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#endif /* AVFORMAT_RAWUTILS_H */
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