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/*
* Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_FFMPEG_BUFFER_HXX
#define MPD_FFMPEG_BUFFER_HXX
extern "C" {
#include <libavutil/mem.h>
#if LIBAVUTIL_VERSION_INT >= AV_VERSION_INT(52, 18, 0)
#define HAVE_AV_FAST_MALLOC
#else
#include <libavcodec/avcodec.h>
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(52, 25, 0)
#define HAVE_AV_FAST_MALLOC
#endif
#endif
}
#include <stddef.h>
/* suppress the ffmpeg compatibility macro */
#ifdef SampleFormat
#undef SampleFormat
#endif
class FfmpegBuffer {
void *data;
unsigned size;
public:
FfmpegBuffer():data(nullptr), size(0) {}
~FfmpegBuffer() {
av_free(data);
}
void *Get(size_t min_size) {
#ifdef HAVE_AV_FAST_MALLOC
av_fast_malloc(&data, &size, min_size);
#else
void *new_data = av_fast_realloc(data, &size, min_size);
if (new_data == nullptr)
return AVERROR(ENOMEM);
data = new_data;
#endif
return data;
}
template<typename T>
T *GetT(size_t n) {
return (T *)Get(n * sizeof(T));
}
};
#endif
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