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  1. /*
  2.  * MMS protocol common definitions.
  3.  * Copyright (c) 2010 Zhentan Feng <spyfeng at gmail dot com>
  4.  *
  5.  * This file is part of FFmpeg.
  6.  *
  7.  * FFmpeg is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * FFmpeg is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with FFmpeg; if not, write to the Free Software
  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20.  */
  21. #ifndef AVFORMAT_MMS_H
  22. #define AVFORMAT_MMS_H
  23.  
  24. #include "url.h"
  25.  
  26. typedef struct MMSStream {
  27.     int id;
  28. }MMSStream;
  29.  
  30. typedef struct MMSContext {
  31.     URLContext *mms_hd;                  ///< TCP connection handle
  32.     MMSStream *streams;
  33.  
  34.     /** Buffer for outgoing packets. */
  35.     /*@{*/
  36.     uint8_t *write_out_ptr;              ///< Pointer for writing the buffer.
  37.     uint8_t out_buffer[512];            ///< Buffer for outgoing packet.
  38.     /*@}*/
  39.  
  40.     /** Buffer for incoming packets. */
  41.     /*@{*/
  42.     uint8_t in_buffer[65536];            ///< Buffer for incoming packets.
  43.     uint8_t *read_in_ptr;                ///< Pointer for reading from incoming buffer.
  44.     int remaining_in_len;                ///< Reading length from incoming buffer.
  45.     /*@}*/
  46.  
  47.     /** Internal handling of the ASF header */
  48.     /*@{*/
  49.     uint8_t *asf_header;                 ///< Stored ASF header.
  50.     int asf_header_size;                 ///< Size of stored ASF header.
  51.     int header_parsed;                   ///< The header has been received and parsed.
  52.     int asf_packet_len;
  53.     int asf_header_read_size;
  54.     /*@}*/
  55.  
  56.     int stream_num;                      ///< stream numbers.
  57.     unsigned int nb_streams_allocated;   ///< allocated size of streams
  58. } MMSContext;
  59.  
  60. int ff_mms_asf_header_parser(MMSContext * mms);
  61. int ff_mms_read_data(MMSContext *mms, uint8_t *buf, const int size);
  62. int ff_mms_read_header(MMSContext * mms, uint8_t * buf, const int size);
  63.  
  64. #endif /* AVFORMAT_MMS_H */
  65.