59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
/*
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* Copyright 2019 Max Kellermann <max.kellermann@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "Base64.hxx"
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#include "lib/ffmpeg/Error.hxx"
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#include "util/StringView.hxx"
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#include "util/WritableBuffer.hxx"
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extern "C" {
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#include <libavutil/base64.h>
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}
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#include <string>
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size_t
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DecodeBase64(WritableBuffer<void> out, StringView in)
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{
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/* since av_base64_decode() wants a null-terminated string, we
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need to make a copy here and null-terminate it */
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const std::string copy(in.data, in.size);
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return DecodeBase64(out, copy.c_str());
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}
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size_t
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DecodeBase64(WritableBuffer<void> out, const char *in)
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{
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int nbytes = av_base64_decode((uint8_t *)out.data, in, out.size);
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if (nbytes < 0)
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throw MakeFfmpegError(nbytes, "Base64 decoder failed");
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return nbytes;
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}
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