Michael Niedermayer <[EMAIL PROTECTED]> added the comment: On Sun, Jul 13, 2008 at 07:25:59PM +0000, Mans Rullgard wrote: > > Mans Rullgard <[EMAIL PROTECTED]> added the comment: > > Michael Niedermayer <[EMAIL PROTECTED]> writes: > > > Michael Niedermayer <[EMAIL PROTECTED]> added the comment: > > > > On Sat, Jul 12, 2008 at 07:20:42PM +0000, Víctor Paesa wrote: > >> > >> New submission from Víctor Paesa <[EMAIL PROTECTED]>: > >> > >> The MP3 format allows to pump up/down the volume for the whole file without > >> re-encoding. > >> > >> Hence it should be possible that, for MP3, ffmpeg allows and honors > >> both -acodec copy and -vol in the same command line. > >> > >> The volunteers implementing this wish may take a look at > >> http://mp3gain.sourceforge.net/index.php, that is LGPL. > > > > Without looking at that, i suspect it can be done very easily > > with a bitstream filter > > But then it's not a copy. IMHO, -[av]codec copy should not alter the > bitstream in any way other than to convert between different packing > formats.
If the user explicitly adds a mp3-volume-changing bitstream filter then i really dont see that problem, and without such explicit addition it wouldnt work (currently) anyway. [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Good people do not need laws to tell them to act responsibly, while bad people will find a way around the laws. -- Plato ______________________________________________________ FFmpeg issue tracker <[EMAIL PROTECTED]> <https://roundup.mplayerhq.hu/roundup/ffmpeg/issue529> ______________________________________________________
