bsf_internal.h (1926B)
1 /* 2 * This file is part of FFmpeg. 3 * 4 * FFmpeg is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2.1 of the License, or (at your option) any later version. 8 * 9 * FFmpeg is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with FFmpeg; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 19 #ifndef AVCODEC_BSF_INTERNAL_H 20 #define AVCODEC_BSF_INTERNAL_H 21 22 #include "libavutil/log.h" 23 24 #include "bsf.h" 25 #include "packet.h" 26 27 typedef struct FFBitStreamFilter { 28 /** 29 * The public AVBitStreamFilter. See bsf.h for it. 30 */ 31 AVBitStreamFilter p; 32 33 int priv_data_size; 34 int (*init)(AVBSFContext *ctx); 35 int (*filter)(AVBSFContext *ctx, AVPacket *pkt); 36 void (*close)(AVBSFContext *ctx); 37 void (*flush)(AVBSFContext *ctx); 38 } FFBitStreamFilter; 39 40 /** 41 * Called by the bitstream filters to get the next packet for filtering. 42 * The filter is responsible for either freeing the packet or passing it to the 43 * caller. 44 */ 45 int ff_bsf_get_packet(AVBSFContext *ctx, AVPacket **pkt); 46 47 /** 48 * Called by bitstream filters to get packet for filtering. 49 * The reference to packet is moved to provided packet structure. 50 * 51 * @param ctx pointer to AVBSFContext of filter 52 * @param pkt pointer to packet to move reference to 53 * 54 * @return 0 on success, negative AVERROR in case of failure 55 */ 56 int ff_bsf_get_packet_ref(AVBSFContext *ctx, AVPacket *pkt); 57 58 const AVClass *ff_bsf_child_class_iterate(void **opaque); 59 60 #endif /* AVCODEC_BSF_INTERNAL_H */