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90 lines
3.0 KiB
C
90 lines
3.0 KiB
C
/*
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* unbuffered private I/O API
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*/
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#ifndef AVFORMAT_URL_H
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#define AVFORMAT_URL_H
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#include "avio.h"
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/**
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* Create a URLContext for accessing to the resource indicated by
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* url, but do not initiate the connection yet.
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*
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* @param puc pointer to the location where, in case of success, the
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* function puts the pointer to the created URLContext
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* @param flags flags which control how the resource indicated by url
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* is to be opened
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* @return 0 in case of success, a negative value corresponding to an
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* AVERROR code in case of failure
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*/
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int ffurl_alloc(URLContext **h, const char *url, int flags);
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/**
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* Connect an URLContext that has been allocated by ffurl_alloc
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*/
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int ffurl_connect(URLContext *h);
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/**
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* Create an URLContext for accessing to the resource indicated by
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* url, and open it.
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*
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* @param puc pointer to the location where, in case of success, the
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* function puts the pointer to the created URLContext
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* @param flags flags which control how the resource indicated by url
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* is to be opened
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* @return 0 in case of success, a negative value corresponding to an
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* AVERROR code in case of failure
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*/
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int ffurl_open(URLContext **h, const char *url, int flags);
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/**
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* Read up to size bytes from the resource accessed by h, and store
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* the read bytes in buf.
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*
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* @return The number of bytes actually read, or a negative value
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* corresponding to an AVERROR code in case of error. A value of zero
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* indicates that it is not possible to read more from the accessed
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* resource (except if the value of the size argument is also zero).
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*/
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int ffurl_read(URLContext *h, unsigned char *buf, int size);
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/**
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* Read as many bytes as possible (up to size), calling the
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* read function multiple times if necessary.
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* This makes special short-read handling in applications
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* unnecessary, if the return value is < size then it is
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* certain there was either an error or the end of file was reached.
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*/
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int ffurl_read_complete(URLContext *h, unsigned char *buf, int size);
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/**
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* Write size bytes from buf to the resource accessed by h.
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*
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* @return the number of bytes actually written, or a negative value
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* corresponding to an AVERROR code in case of failure
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*/
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int ffurl_write(URLContext *h, const unsigned char *buf, int size);
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#endif //AVFORMAT_URL_H
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