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- #ifndef SWRESAMPLE_SWRESAMPLE_H
- #define SWRESAMPLE_SWRESAMPLE_H
- #include <stdint.h>
- #include "libavutil/channel_layout.h"
- #include "libavutil/frame.h"
- #include "libavutil/samplefmt.h"
- #include "libswresample/version_major.h"
- #ifndef HAVE_AV_CONFIG_H
- #include "libswresample/version.h"
- #endif
- #define SWR_FLAG_RESAMPLE 1
- enum SwrDitherType {
- SWR_DITHER_NONE = 0,
- SWR_DITHER_RECTANGULAR,
- SWR_DITHER_TRIANGULAR,
- SWR_DITHER_TRIANGULAR_HIGHPASS,
- SWR_DITHER_NS = 64,
- SWR_DITHER_NS_LIPSHITZ,
- SWR_DITHER_NS_F_WEIGHTED,
- SWR_DITHER_NS_MODIFIED_E_WEIGHTED,
- SWR_DITHER_NS_IMPROVED_E_WEIGHTED,
- SWR_DITHER_NS_SHIBATA,
- SWR_DITHER_NS_LOW_SHIBATA,
- SWR_DITHER_NS_HIGH_SHIBATA,
- SWR_DITHER_NB,
- };
- enum SwrEngine {
- SWR_ENGINE_SWR,
- SWR_ENGINE_SOXR,
- SWR_ENGINE_NB,
- };
- enum SwrFilterType {
- SWR_FILTER_TYPE_CUBIC,
- SWR_FILTER_TYPE_BLACKMAN_NUTTALL,
- SWR_FILTER_TYPE_KAISER,
- };
- typedef struct SwrContext SwrContext;
- const AVClass *swr_get_class(void);
- struct SwrContext *swr_alloc(void);
- int swr_init(struct SwrContext *s);
- int swr_is_initialized(struct SwrContext *s);
- int swr_alloc_set_opts2(struct SwrContext **ps,
- const AVChannelLayout *out_ch_layout, enum AVSampleFormat out_sample_fmt, int out_sample_rate,
- const AVChannelLayout *in_ch_layout, enum AVSampleFormat in_sample_fmt, int in_sample_rate,
- int log_offset, void *log_ctx);
- void swr_free(struct SwrContext **s);
- void swr_close(struct SwrContext *s);
- int swr_convert(struct SwrContext *s, uint8_t * const *out, int out_count,
- const uint8_t * const *in , int in_count);
- int64_t swr_next_pts(struct SwrContext *s, int64_t pts);
- int swr_set_compensation(struct SwrContext *s, int sample_delta, int compensation_distance);
- int swr_set_channel_mapping(struct SwrContext *s, const int *channel_map);
- int swr_build_matrix2(const AVChannelLayout *in_layout, const AVChannelLayout *out_layout,
- double center_mix_level, double surround_mix_level,
- double lfe_mix_level, double maxval,
- double rematrix_volume, double *matrix,
- ptrdiff_t stride, enum AVMatrixEncoding matrix_encoding,
- void *log_context);
- int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride);
- int swr_drop_output(struct SwrContext *s, int count);
- int swr_inject_silence(struct SwrContext *s, int count);
- int64_t swr_get_delay(struct SwrContext *s, int64_t base);
- int swr_get_out_samples(struct SwrContext *s, int in_samples);
- unsigned swresample_version(void);
- const char *swresample_configuration(void);
- const char *swresample_license(void);
- int swr_convert_frame(SwrContext *swr,
- AVFrame *output, const AVFrame *input);
- int swr_config_frame(SwrContext *swr, const AVFrame *out, const AVFrame *in);
- #endif
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