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56 lines
2.1 KiB
56 lines
2.1 KiB
/* |
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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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