Mike Brown wrote:
On Wed, Jun 07, 2017 at 03:00:12PM +0100, Andy Furniss wrote:
Mike Brown wrote:
On Wed, Jun 07, 2017 at 12:03:33PM +0200, Moritz Barsnick wrote:
On Tue, Jun 06, 2017 at 21:54:41 -0500, Mike Brown wrote:
If given an H.264/4.2.2 elementary stream, can ffmpeg recode
it to H.264/4.2.0. If so, what would the command line be?
$ ffmpeg -i myelementarystream_422.h264 -c:v libx264 [ other
x264/encoding options ] -pix_fmt yuv420p outfile.h264
Thanks, I appreciate the response.
OK as long as it's progressive, interlaced would need different,
maybe (untested/from memory)
-vf scale=interl=1,format=yuv240p
plus specific interlace encode options to libx264.
It is interlaced and I need to keep it that way (2:3 pulldown
video).
I don't have any experience with pulldown.
Is there a list of all the libx264 options online?
As you don't need a container then I think all you will need is to use
something like -
.... -x264-params tff=1 ...
if the source is top field first or bff=1 otherwise.
That should make libx264 use mbaff - which you should seen in the output.
There's probably a way to do it without using x264 options, I am just
pasting from old notes.
Historically, IME ffmpeg has trouble with generating and or determining
framerate with raw h264 streams - I don't know if that will be an issue
for you or not.
options after -x264-params are listed by x264 --fullhelp, but you need
to change the format eg, --tff becomes tff=1.
_______________________________________________
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".
