Revision 175389c8 libavformat/avio.h

View differences:

libavformat/avio.h
134 134 
    int priv_data_size;
135 135 
    const AVClass *priv_data_class;
136 136 
    int flags;
137 
    int (*url_check)(URLContext *h, int mask);
137 138 
} URLProtocol;
138 139 

  		




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typedef struct URLPollEntry {


  		




  ......




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int url_exist(const char *url);


  		




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/**


  		




  
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 * Return AVIO_* access flags corresponding to the access permissions


  		




  
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 * of the resource in url, or a negative value corresponding to an


  		




  
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 * AVERROR code in case of failure. The returned access flags are


  		




  
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 * masked by the value in flags.


  		




  
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 *


  		




  
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 * @note This function is intrinsically unsafe, in the sense that the


  		




  
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 * checked resource may change its existence or permission status from


  		




  
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 * one call to another. Thus you should not trust the returned value,


  		




  
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 * unless you are sure that no other processes are accessing the


  		




  
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 * checked resource.


  		




  
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 *


  		




  
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 * @note This function is slightly broken until next major bump


  		




  
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 *       because of AVIO_RDONLY == 0. Don't use it until then.


  		




  
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 */


  		




  
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int avio_check(const char *url, int flags);


  		




  
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/**


  		




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 * The callback is called in blocking functions to test regulary if


  		




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 * asynchronous interruption is needed. AVERROR_EXIT is returned


  		




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 * in this case by the interrupted function. 'NULL' means no interrupt


  		












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