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/*
* copyright (c) 2001 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFORMAT_RAWUTILS_H
#define AVFORMAT_RAWUTILS_H
#include <stdint.h>
#include "libavcodec/codec_par.h"
#include "libavcodec/packet.h"
#include "avformat.h"
#define CONTAINS_PAL 2
/**
* Reshuffles the lines to use the user specified stride.
*
* @param ppkt input and output packet
* @return negative error code or
* 0 if no new packet was allocated
* non-zero if a new packet was allocated and ppkt has to be freed
* CONTAINS_PAL if in addition to a new packet the old contained a palette
*/
int ff_reshuffle_raw_rgb(AVFormatContext *s, AVPacket **ppkt, AVCodecParameters *par, int expected_stride);
/**
* Retrieves the palette from a packet, either from side data, or
* appended to the video data in the packet itself (raw video only).
* It is commonly used after a call to ff_reshuffle_raw_rgb().
*
* Use 0 for the ret parameter to check for side data only.
*
* @param pkt pointer to packet before calling ff_reshuffle_raw_rgb()
* @param ret return value from ff_reshuffle_raw_rgb(), or 0
* @param palette pointer to palette buffer
* @return negative error code or
* 1 if the packet has a palette, else 0
*/
int ff_get_packet_palette(AVFormatContext *s, AVPacket *pkt, int ret, uint32_t *palette);
#endif /* AVFORMAT_RAWUTILS_H */
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