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Diffstat (limited to 'libswresample/resample.h')
-rw-r--r-- | libswresample/resample.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/libswresample/resample.h b/libswresample/resample.h new file mode 100644 index 0000000..99a89b7 --- /dev/null +++ b/libswresample/resample.h @@ -0,0 +1,64 @@ +/* + * audio resampling + * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef SWRESAMPLE_RESAMPLE_H +#define SWRESAMPLE_RESAMPLE_H + +#include "libavutil/log.h" +#include "libavutil/samplefmt.h" + +#include "swresample_internal.h" + +typedef struct ResampleContext { + const AVClass *av_class; + uint8_t *filter_bank; + int filter_length; + int filter_alloc; + int ideal_dst_incr; + int dst_incr; + int dst_incr_div; + int dst_incr_mod; + int index; + int frac; + int src_incr; + int compensation_distance; + int phase_shift; + int phase_mask; + int linear; + enum SwrFilterType filter_type; + int kaiser_beta; + double factor; + enum AVSampleFormat format; + int felem_size; + int filter_shift; + + struct { + void (*resample_one)(void *dst, const void *src, + int n, int64_t index, int64_t incr); + int (*resample)(struct ResampleContext *c, void *dst, + const void *src, int n, int update_ctx); + } dsp; +} ResampleContext; + +void swri_resample_dsp_init(ResampleContext *c); +void swri_resample_dsp_x86_init(ResampleContext *c); + +#endif /* SWRESAMPLE_RESAMPLE_H */ |