| /* |
| * 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 */ |
