diff options
Diffstat (limited to 'libaf')
-rw-r--r-- | libaf/af.c | 15 | ||||
-rw-r--r-- | libaf/af.h | 4 |
2 files changed, 12 insertions, 7 deletions
diff --git a/libaf/af.c b/libaf/af.c index aabc6c767c..79b44fcba9 100644 --- a/libaf/af.c +++ b/libaf/af.c @@ -615,16 +615,21 @@ inline int af_resize_local_buffer(af_instance_t* af, af_data_t* data) return AF_OK; } -// send control to all filters, starting with the last until -// one responds with AF_OK -int af_control_any_rev (af_stream_t* s, int cmd, void* arg) { +/** + * \brief send control to all filters, starting with the last, until + * one responds with AF_OK + * \return The instance that accepted the command or NULL if none did. + */ +af_instance_t *af_control_any_rev (af_stream_t* s, int cmd, void* arg) { int res = AF_UNKNOWN; af_instance_t* filt = s->last; - while (filt && res != AF_OK) { + while (filt) { res = filt->control(filt, cmd, arg); + if (res == AF_OK) + return filt; filt = filt->prev; } - return (res == AF_OK); + return NULL; } void af_help (void) { diff --git a/libaf/af.h b/libaf/af.h index 05e277d58c..3f1b7d16a5 100644 --- a/libaf/af.h +++ b/libaf/af.h @@ -153,8 +153,8 @@ af_data_t* af_play(af_stream_t* s, af_data_t* data); // send control to all filters, starting with the last until // one accepts the command with AF_OK. -// Returns true if accepting filter was found. -int af_control_any_rev (af_stream_t* s, int cmd, void* arg); +// Returns the accepting filter or NULL if none was found. +af_instance_t *af_control_any_rev (af_stream_t* s, int cmd, void* arg); /* Calculate how long the output from the filters will be given the input length "len". The calculated length is >= the actual |