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ffmpeg-4.2.2/libavformat/mms.h 2.29 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * MMS protocol common definitions.
   * Copyright (c) 2010 Zhentan Feng <spyfeng at gmail dot com>
   *
   * This file is part of FFmpeg.
   *
   * FFmpeg is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * FFmpeg is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with FFmpeg; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   */
  #ifndef AVFORMAT_MMS_H
  #define AVFORMAT_MMS_H
  
  #include "url.h"
  
  typedef struct MMSStream {
      int id;
  }MMSStream;
  
  typedef struct MMSContext {
      URLContext *mms_hd;                  ///< TCP connection handle
      MMSStream *streams;
  
      /** Buffer for outgoing packets. */
      /*@{*/
      uint8_t *write_out_ptr;              ///< Pointer for writing the buffer.
      uint8_t out_buffer[512];            ///< Buffer for outgoing packet.
      /*@}*/
  
      /** Buffer for incoming packets. */
      /*@{*/
      uint8_t in_buffer[65536];            ///< Buffer for incoming packets.
      uint8_t *read_in_ptr;                ///< Pointer for reading from incoming buffer.
      int remaining_in_len;                ///< Reading length from incoming buffer.
      /*@}*/
  
      /** Internal handling of the ASF header */
      /*@{*/
      uint8_t *asf_header;                 ///< Stored ASF header.
      int asf_header_size;                 ///< Size of stored ASF header.
      int header_parsed;                   ///< The header has been received and parsed.
      int asf_packet_len;
      int asf_header_read_size;
      /*@}*/
  
      int stream_num;                      ///< stream numbers.
      unsigned int nb_streams_allocated;   ///< allocated size of streams
  } MMSContext;
  
  int ff_mms_asf_header_parser(MMSContext * mms);
  int ff_mms_read_data(MMSContext *mms, uint8_t *buf, const int size);
  int ff_mms_read_header(MMSContext * mms, uint8_t * buf, const int size);
  
  #endif /* AVFORMAT_MMS_H */