nessusing
10th February 2005, 19:35
Hi, this is my first post here and i am still new to video/audio compression, so some of the terms i use below may not be exact, plz bear with me, thx!
Basically my problem is: by given a xvid and VBR mp3 encoded dvdrip, i want to downgrade it in order to play it on my cell phone. since my cell phone has a xvid supported player, so all i really need to do is just making the source video at a lower bitrate.
3 actions i need to do: resize(my cell phone wouldn't allow playing a video with size bigger than the cell phone's physical screen size), lower bitrate of video, lower bitrate of audio.
tool: VirtualDuB1.6.3
First trial: Doing all above actions at once, it turned out that video and audio mismatched(video delay).
Second trial: extract mp3 first, decompress it back to wav. then do resizing, video/audio compressing at once again, but still mismatched.
Thired trial: resize first, then compress the resized video and wav. this time it work!
so my question is: is this the best way to do it? it seems to me this is so complicated, and there must be a better and eaiser way to do this. if i have to do these separtely and manually, it would be impossible to make this in batch mode since i really want batch produce 4~5 movies over night.
sorry about my terminology again, i did best i could;)
Basically my problem is: by given a xvid and VBR mp3 encoded dvdrip, i want to downgrade it in order to play it on my cell phone. since my cell phone has a xvid supported player, so all i really need to do is just making the source video at a lower bitrate.
3 actions i need to do: resize(my cell phone wouldn't allow playing a video with size bigger than the cell phone's physical screen size), lower bitrate of video, lower bitrate of audio.
tool: VirtualDuB1.6.3
First trial: Doing all above actions at once, it turned out that video and audio mismatched(video delay).
Second trial: extract mp3 first, decompress it back to wav. then do resizing, video/audio compressing at once again, but still mismatched.
Thired trial: resize first, then compress the resized video and wav. this time it work!
so my question is: is this the best way to do it? it seems to me this is so complicated, and there must be a better and eaiser way to do this. if i have to do these separtely and manually, it would be impossible to make this in batch mode since i really want batch produce 4~5 movies over night.
sorry about my terminology again, i did best i could;)