Rodolfo Medina <[email protected]> writes: > 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! ;-) ).
...then, after a while, say some hours, it suddenly detects the changes and shows the right new file names and tags. So it seems that Moritz was right when speaking of some sort of `cache' my mplayer is doing... 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".
