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libswr: allow to set custom matrices.

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This commit is contained in:
Nicolas George
2012-02-16 11:26:32 +01:00
parent 016c7bb762
commit 560b224f53
5 changed files with 60 additions and 11 deletions
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13
libswresample/swresample.h
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@ -30,7 +30,7 @@
#include "libavutil/samplefmt.h"
#define LIBSWRESAMPLE_VERSION_MAJOR 0
#define LIBSWRESAMPLE_VERSION_MINOR 6
#define LIBSWRESAMPLE_VERSION_MINOR 7
#define LIBSWRESAMPLE_VERSION_MICRO 100
#define LIBSWRESAMPLE_VERSION_INT AV_VERSION_INT(LIBSWRESAMPLE_VERSION_MAJOR, \
@ -126,6 +126,17 @@ int swr_set_compensation(struct SwrContext *s, int sample_delta, int compensatio
*/
int swr_set_channel_mapping(struct SwrContext *s, const int *channel_map);
/**
* Set a customized remix matrix.
*
* @param s allocated Swr context, not yet initialized
* @param matrix remix coefficients; matrix[i + stride * o] is
* the weight of input channel i in output channel o
* @param stride offset between lines of the matrix
* @return AVERROR error code in case of failure.
*/
int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride);
/**
* Return the LIBSWRESAMPLE_VERSION_INT constant.
*/