1cdef extern from "libavutil/samplefmt.h" nogil: 2 3 cdef enum AVSampleFormat: 4 AV_SAMPLE_FMT_NONE 5 AV_SAMPLE_FMT_U8 6 AV_SAMPLE_FMT_S16 7 AV_SAMPLE_FMT_S32 8 AV_SAMPLE_FMT_FLT 9 AV_SAMPLE_FMT_DBL 10 AV_SAMPLE_FMT_U8P 11 AV_SAMPLE_FMT_S16P 12 AV_SAMPLE_FMT_S32P 13 AV_SAMPLE_FMT_FLTP 14 AV_SAMPLE_FMT_DBLP 15 AV_SAMPLE_FMT_NB # Number. 16 17 # Find by name. 18 cdef AVSampleFormat av_get_sample_fmt(char* name) 19 20 # Inspection. 21 cdef char * av_get_sample_fmt_name(AVSampleFormat sample_fmt) 22 cdef int av_get_bytes_per_sample(AVSampleFormat sample_fmt) 23 cdef int av_sample_fmt_is_planar(AVSampleFormat sample_fmt) 24 25 # Alternative forms. 26 cdef AVSampleFormat av_get_packed_sample_fmt(AVSampleFormat sample_fmt) 27 cdef AVSampleFormat av_get_planar_sample_fmt(AVSampleFormat sample_fmt) 28 29 cdef int av_samples_alloc( 30 uint8_t** audio_data, 31 int* linesize, 32 int nb_channels, 33 int nb_samples, 34 AVSampleFormat sample_fmt, 35 int align 36 ) 37 38 cdef int av_samples_get_buffer_size( 39 int *linesize, 40 int nb_channels, 41 int nb_samples, 42 AVSampleFormat sample_fmt, 43 int align 44 ) 45 46 47 cdef int av_samples_fill_arrays( 48 uint8_t **audio_data, 49 int *linesize, 50 const uint8_t *buf, 51 int nb_channels, 52 int nb_samples, 53 AVSampleFormat sample_fmt, 54 int align 55 ) 56 57 cdef int av_samples_set_silence( 58 uint8_t **audio_data, 59 int offset, 60 int nb_samples, 61 int nb_channels, 62 AVSampleFormat sample_fmt 63 ) 64