diff options
Diffstat (limited to 'src/pcm_export.c')
| -rw-r--r-- | src/pcm_export.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/pcm_export.c b/src/pcm_export.c index e586b51d..824b41b1 100644 --- a/src/pcm_export.c +++ b/src/pcm_export.c @@ -70,6 +70,27 @@ pcm_export_open(struct pcm_export_state *state, } } +size_t +pcm_export_frame_size(const struct pcm_export_state *state, + const struct audio_format *audio_format) +{ + assert(state != NULL); + assert(audio_format != NULL); + + if (state->pack24) + /* packed 24 bit samples (3 bytes per sample) */ + return audio_format->channels * 3; + + if (state->dsd_usb) + /* the DSD-over-USB draft says that DSD 1-bit samples + are enclosed within 24 bit samples, and MPD's + representation of 24 bit is padded to 32 bit (4 + bytes per sample) */ + return audio_format->channels * 4; + + return audio_format_frame_size(audio_format); +} + const void * pcm_export(struct pcm_export_state *state, const void *data, size_t size, size_t *dest_size_r) |