diff options
Diffstat (limited to 'audio/format.c')
-rw-r--r-- | audio/format.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/audio/format.c b/audio/format.c index aa6099022f..c6c617cf28 100644 --- a/audio/format.c +++ b/audio/format.c @@ -42,6 +42,27 @@ int af_fmt2bits(int format) return 0; } +static int bits_to_mask(int bits) +{ + switch (bits) { + case 8: return AF_FORMAT_8BIT; + case 16: return AF_FORMAT_16BIT; + case 24: return AF_FORMAT_24BIT; + case 32: return AF_FORMAT_32BIT; + case 64: return AF_FORMAT_64BIT; + } + return 0; +} + +int af_fmt_change_bits(int format, int bits) +{ + if (!af_fmt_is_valid(format) || (format & AF_FORMAT_SPECIAL_MASK)) + return 0; + int mask = bits_to_mask(bits); + format = (format & ~AF_FORMAT_BITS_MASK) | mask; + return af_fmt_is_valid(format) ? format : 0; +} + /* Convert format to str input str is a buffer for the converted string, size is the size of the buffer */ char* af_fmt2str(int format, char* str, int size) @@ -90,6 +111,15 @@ const struct af_fmt_entry af_fmtstr_table[] = { {0} }; +bool af_fmt_is_valid(int format) +{ + for (int i = 0; af_fmtstr_table[i].name; i++) { + if (af_fmtstr_table[i].format == format) + return true; + } + return false; +} + const char *af_fmt2str_short(int format) { int i; |