Rodolfo Medina <[email protected]> writes: > I load a still image (say it image.jpg) in Cinelerra, then render it in .m2v > format (say image.m2v) and then with ffmpeg convert it to mpeg format, say > image.mpg. Then I try to concatenate it to another mpeg file (say movie.mpg) > in order to create a simple text presentation to it lasting some 10 seconds. > > Now, if image.mpg has no audio in it, the command > > $ cat image.mpg movie.mpg > total-movie.mpg > > creates a new file in which the original audio of movie.mpg is shifted back at > the beginning of total-movie.mpg, that I don't want. > > Then I want to add an audio track to image.mpg so that the original audio of > movie.mpg cannot shift back. What's the proper way to add such an audio > track? > I tried with `Audio > add track', but then in total-movie.mpg there's no audio > at all.
John Coppens <[email protected]> writes: > I haven't tried that, but I suspect that, if you add an audio track and > render the movie, you will have to assure it's written with the same > codec as the clip you want to append. (same codec, number of channels, > and same bitrate too). I suspect your problem is that the player isn't > capable to switch modes while playing (I think no player does that). > > You will probably see error message from the player log about that. > > So, make the image clip with cinelerra, and convert it to mpeg, making > sure the audio gets to the same format as the second 'movie.mpg'. Yes, I understand your suggestion. In fact there is error message from Mplayer. Now, how can I know the format and characteristics (codec, number of channels, bitrate) of `movie.mpg''s audio so to adopt the same for `image.mpg'? Thanks Rodolfo _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
