73 lines
1.7 KiB
C++
73 lines
1.7 KiB
C++
/*
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* Copyright (C) 2003-2014 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_FFMPEG_BUFFER_HXX
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#define MPD_FFMPEG_BUFFER_HXX
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extern "C" {
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#include <libavutil/mem.h>
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#if LIBAVUTIL_VERSION_INT >= AV_VERSION_INT(52, 18, 0)
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#define HAVE_AV_FAST_MALLOC
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#else
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#include <libavcodec/avcodec.h>
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#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(52, 25, 0)
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#define HAVE_AV_FAST_MALLOC
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#endif
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#endif
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}
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#include <stddef.h>
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/* suppress the ffmpeg compatibility macro */
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#ifdef SampleFormat
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#undef SampleFormat
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#endif
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class FfmpegBuffer {
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void *data;
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unsigned size;
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public:
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FfmpegBuffer():data(nullptr), size(0) {}
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~FfmpegBuffer() {
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av_free(data);
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}
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void *Get(size_t min_size) {
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#ifdef HAVE_AV_FAST_MALLOC
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av_fast_malloc(&data, &size, min_size);
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#else
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void *new_data = av_fast_realloc(data, &size, min_size);
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if (new_data == nullptr)
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return AVERROR(ENOMEM);
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data = new_data;
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#endif
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return data;
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}
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template<typename T>
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T *GetT(size_t n) {
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return (T *)Get(n * sizeof(T));
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}
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};
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#endif
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