If you have a video file recorded in MPEG-2, what would happen if you re-encoded it in MPEG-4 H.264?
You would get an mpg4 :-) what else?
On a more serious note: -
MPEG-2 and MPEG-4 are container file formats and as such can contain a variety of codecs for video and audio.
If the MPEG-2 contains h.264 video and AC3 audio, for example, and you convert to MPEG-4, then unless you specify otherwise the MPEG-4 will contain the same codecs.
The only things that may change, if you specify changes to the internal codecs, are:
These may occur due to recompression.
HTH
John EB
On a more serious note: -
MPEG-2 and MPEG-4 are container file formats and as such can contain a variety of codecs for video and audio.
If the MPEG-2 contains h.264 video and AC3 audio, for example, and you convert to MPEG-4, then unless you specify otherwise the MPEG-4 will contain the same codecs.
The only things that may change, if you specify changes to the internal codecs, are:
- the MPEG-4 file may be smaller or larger
- you may notice a loss in quality
These may occur due to recompression.
HTH
John EB
And how can you avoid recompression?
Hi
. . . . And how can you avoid recompression? . . . .
That has already been comprehensively answered in your other topic here.
Please note that repeating the same topic asking what is the same question in a slightly different way is not going to change the answers - as this is in effect a duplicate question of the topic linked to above, this topic will be closed.
John EB
Forum Moderator