diff options
Diffstat (limited to 'libavutil/samplefmt.c')
-rw-r--r-- | libavutil/samplefmt.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/libavutil/samplefmt.c b/libavutil/samplefmt.c index 711afac287..4d94fa69be 100644 --- a/libavutil/samplefmt.c +++ b/libavutil/samplefmt.c @@ -185,3 +185,22 @@ int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels, } return 0; } + +int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset, + int src_offset, int nb_samples, int nb_channels, + enum AVSampleFormat sample_fmt) +{ + int planar = av_sample_fmt_is_planar(sample_fmt); + int planes = planar ? nb_channels : 1; + int block_align = av_get_bytes_per_sample(sample_fmt) * (planar ? 1 : nb_channels); + int data_size = nb_samples * block_align; + int i; + + dst_offset *= block_align; + src_offset *= block_align; + + for (i = 0; i < planes; i++) + memcpy(dst[i] + dst_offset, src[i] + src_offset, data_size); + + return 0; +} |