Libav 0.7.1
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00001 /* 00002 * 00003 * This file is part of Libav. 00004 * 00005 * Libav is free software; you can redistribute it and/or 00006 * modify it under the terms of the GNU Lesser General Public 00007 * License as published by the Free Software Foundation; either 00008 * version 2.1 of the License, or (at your option) any later version. 00009 * 00010 * Libav is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 * Lesser General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU Lesser General Public 00016 * License along with Libav; if not, write to the Free Software 00017 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00018 */ 00019 00020 #ifndef AVFORMAT_AVIO_INTERNAL_H 00021 #define AVFORMAT_AVIO_INTERNAL_H 00022 00023 #include "avio.h" 00024 #include "url.h" 00025 00026 int ffio_init_context(AVIOContext *s, 00027 unsigned char *buffer, 00028 int buffer_size, 00029 int write_flag, 00030 void *opaque, 00031 int (*read_packet)(void *opaque, uint8_t *buf, int buf_size), 00032 int (*write_packet)(void *opaque, uint8_t *buf, int buf_size), 00033 int64_t (*seek)(void *opaque, int64_t offset, int whence)); 00034 00035 00042 int ffio_read_partial(AVIOContext *s, unsigned char *buf, int size); 00043 00044 void ffio_fill(AVIOContext *s, int b, int count); 00045 00046 static av_always_inline void ffio_wfourcc(AVIOContext *pb, const uint8_t *s) 00047 { 00048 avio_wl32(pb, MKTAG(s[0], s[1], s[2], s[3])); 00049 } 00050 00063 int ffio_rewind_with_probe_data(AVIOContext *s, unsigned char *buf, int buf_size); 00064 00065 uint64_t ffio_read_varlen(AVIOContext *bc); 00066 00068 int ffio_set_buf_size(AVIOContext *s, int buf_size); 00069 00070 void ffio_init_checksum(AVIOContext *s, 00071 unsigned long (*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len), 00072 unsigned long checksum); 00073 unsigned long ffio_get_checksum(AVIOContext *s); 00074 unsigned long ff_crc04C11DB7_update(unsigned long checksum, const uint8_t *buf, 00075 unsigned int len); 00076 00086 int ffio_open_dyn_packet_buf(AVIOContext **s, int max_packet_size); 00087 00099 int ffio_fdopen(AVIOContext **s, URLContext *h); 00100 00101 #endif /* AVFORMAT_AVIO_INTERNAL_H */