libavformat/internal.h

   1 /*
   2  * copyright (c) 2001 Fabrice Bellard
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with FFmpeg; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef AVFORMAT_INTERNAL_H
  22 #define AVFORMAT_INTERNAL_H
  23
  24 #include <stdint.h>
  25 #include "avformat.h"
  26
  27 char *ff_data_to_hex(char *buf, const uint8_t *src, int size);
  28
  29 void av_program_add_stream_index(AVFormatContext *ac, int progid, unsigned int idx);
  30
  31 /**
  32  * Add packet to AVFormatContext->packet_buffer list, determining its
  33  * interleaved position using compare() function argument.
  34  */
  35 void ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt,
  36                               int (*compare)(AVFormatContext *, AVPacket *, AVPacket *));
  37
  38 void av_read_frame_flush(AVFormatContext *s);
  39
  40 /**
  41  * Probes a bytestream to determine the input format. Each time a
  42  * probe returns with a score that is too low, the probe buffer size
  43  * is increased and another attempt is made. When the maximum probe
  44  * size is reached, the input format with the highest score is
  45  * returned.
  46  *
  47  * @param pb the bytestream to probe, it may be closed and opened again
  48  * @param fmt the input format is put here
  49  * @param filename the filename of the stream
  50  * @param logctx the log context
  51  * @param offset the offset within the bytestream to probe from
  52  * @param max_probe_size the maximum probe buffer size (zero for default)
  53  * @return 0 if OK, a negative value corresponding to an AVERROR(xxx)
  54  * code otherwise
  55  */
  56 int ff_probe_input_buffer(ByteIOContext **pb, AVInputFormat **fmt,
  57                           const char *filename, void *logctx,
  58                           unsigned int offset, unsigned int max_probe_size);
  59
  60 #endif /* AVFORMAT_INTERNAL_H */