---------- Post updated at 04:55 PM ---------- Previous update was at 04:40 PM ----------
Consider that if you want the file to be printed in case id3 or metaflac return no output at all, the entire flow should be modified to process one file at a time and that change will have dramatic performance impact (you should decide which one is more important: functionality or speed).
Strange. I just copy-pasted your line into the terminal. No error message. No output at all.
The first line you send found the files with 'track' or 'unknown' in it but returned the wrong lines. This one returns nothing. I don't get any output for FLAC either.
BTW if there is no id3 tag at all it just shows the same as an empty tag. So there isn't need for checking for no output at all. But the need for checking for an empty tag is even more important then for 'track' or 'unknown', because there are more of them.
Actually I just noticed an empty id3 tag returns spaces. Select the text above and you see it. So the check can be on "Title: ". That's "Title:" and two spaces. The first one is there always, the second one means there is nothing in the title tag (or it starts with a space what isn't good too).
But metaflac returns nothing at all if the tag is empty. And yes that is noteworthy. More important than performance. metaflac only return tags when they are filled. So if the word 'TITLE' isn't in the output, the title is empty. If only the artist is filled this is the output. If nothing is filled: no message, just nothing is returned.
Is it possible to check on not 'TITLE' or not 'ARTIST' or not 'ALBUM' or not 'TRACKNUMBER'? Or isn't it possible to check that the fast way is nothing is returned?
Last edited by MrZehl; 12-20-2010 at 01:26 PM..
Reason: pasted the same text two times, removed one of them, randomly chosen.
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