diff options
Diffstat (limited to 'libaf/af.h')
| -rw-r--r-- | libaf/af.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/libaf/af.h b/libaf/af.h index d5f7e8964c..f4f864a7bb 100644 --- a/libaf/af.h +++ b/libaf/af.h @@ -138,11 +138,13 @@ void af_uninit(af_stream_t* s); // Filter data chunk through the filters in the list af_data_t* af_play(af_stream_t* s, af_data_t* data); /* Calculate how long the output from the filters will be given the - input length "len" */ + input length "len". The calculated length is >= the actual + length */ int af_outputlen(af_stream_t* s, int len); /* Calculate how long the input to the filters should be to produce a certain output length, i.e. the return value of this function is - the input length required to produce the output length "len". */ + the input length required to produce the output length "len". The + calculated length is <= the actual length */ int af_inputlen(af_stream_t* s, int len); @@ -154,14 +156,15 @@ int af_inputlen(af_stream_t* s, int len); int af_resize_local_buffer(af_instance_t* af, af_data_t* data); /* Helper function used to calculate the exact buffer length needed - when buffers are resized */ -int af_lencalc(frac_t mul, int len); + when buffers are resized. The returned length is >= than what is + needed */ +int af_lencalc(frac_t mul, af_data_t* data); /* Memory reallocation macro: if a local buffer is used (i.e. if the filter doesn't operate on the incoming buffer this macro must be called to ensure the buffer is big enough. */ #define RESIZE_LOCAL_BUFFER(a,d)\ -((af->data->len < af_lencalc(af->mul,data->len))?af_resize_local_buffer(af,data):AF_OK) +((af->data->len < af_lencalc(af->mul,data))?af_resize_local_buffer(af,data):AF_OK) #ifndef min #define min(a,b)(((a)>(b))?(b):(a)) |