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seqmid - more descriptions on snd_seq_parse_address() behavior

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Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Henning Thielemann 2012-03-14 18:45:02 +01:00 • committed by Takashi Iwai
parent 2ab86d96c9
commit 1937247439
1 changed files with 10 additions and 1 deletions
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11
src/seq/seqmid.c
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@ -378,9 +378,18 @@ int snd_seq_sync_output_queue(snd_seq_t *seq)
* \return 0 on success or negative error code
*
* This function parses the sequencer client and port numbers from the given string.
* The client and port tokes are separated by either colon or period, e.g. 128:1.
* The client and port tokens are separated by either colon or period, e.g. 128:1.
* When \a seq is not NULL, the function accepts also a client name not only
* digit numbers.
* Actually \a arg need to be only a prefix of the wanted client.
* That is, if a client named "Foobar XXL Master 2012" with number 128 is available,
* then parsing "Foobar" will return the address 128:0.
* However parsing is biased towards small client numbers,
* thus if also a client named "Foobar" with number 129 exists,
* then parsing will still yield address 128:0 and not 129:0.
* If you want be able to access all clients by prefixes
* then you must write your own parser that checks for matching client names
* in the order of increasing name lengths.
*/
int snd_seq_parse_address(snd_seq_t *seq, snd_seq_addr_t *addr, const char *arg)
{