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22 #include "libavutil/channel_layout.h"
23 #include "libavutil/mathematics.h"
24 #include "libavutil/opt.h"
28 #define GSM_BLOCK_SIZE 33
29 #define GSM_BLOCK_SAMPLES 160
30 #define GSM_SAMPLE_RATE 8000
49 return ret < 0 ? ret :
AVERROR(EIO);