Moritz Barsnick <[email protected]> writes: > On Wed, May 31, 2017 at 13:10:18 +0200, Cley Faye wrote: >> A shot in the dark here since I didn't have the patience to look at how >> -write_id3v1 work; but if I remember correctly, id3v1 tags are actually >> appended at the end of the mp3 stream in such a way that some older player >> would even play them, causing a small burst of audio at the end of such >> file. >> >> If ffmpeg really doesn't handle them when reading the stream, it would >> explain why 1- they get copied during stream copy, 2- why older tag would >> still show up first, and maybe also 3- why the new tag would show up after >> initial playing of the file, if the reader actually move from the end of >> the file to detect them after reading. > > That was my assumption, and why I suggested using the additional > option. But I have had enough of shooting in the dark. I created a file > with both v1 and v2 ID3 tags: > $ ffmpeg -f lavfi -i anoisesrc -c:a libmp3lame -metadata title='Where is this > found?' -write_id3v1 1 -t 1 -ac:a 1 -b:a 24k tmp/id3tagtest.mp3 > > and converted it in three different ways: $ ffmpeg -i tmp/id3tagtest.mp3 > -metadata title='This is the new tag!' -c copy > tmp/id3tagtest_copied_and_new_matadate_no_explicit_id3v1.mp3 $ ffmpeg -i > tmp/id3tagtest.mp3 -write_id3v1 1 -metadata title='This is the new tag!' -c > copy tmp/id3tagtest_copied_and_new_matadate_explicit_id3v1.mp3 $ ffmpeg -i > tmp/id3tagtest.mp3 -map_metadata -1 -c copy > tmp/id3tagtest_copied_and_map_metadata_minus_1.mp3 > > and apparently ffmpeg *always* overwrites or at least deletes the old > ID3v1 tag. None of the three resulting files contained a leak of the > old tag. (Inspected with "strings".) Period, 'nuff said. > > So, unless I missed something, it's the player's fault.
It seems so. Sorry for having engaged people in a problem that does not concern ffmpeg. Now I changed not only tags, but also file names and the player still sees old file names. When I click over them to listen to them, another song is played in place of them. It's sort of been crazy (after having driven *me* crazy! ;-) ). I know I shouldn't ask, but... Do you know how this is possibile and... well, how could I work it out...? Thanks, cheers Rodolfo _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
