Re: [FFmpeg-user] Recoding H.264/4.2.2 to H.264/4.2.0
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 ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Recoding H.264/4.2.2 to H.264/4.2.0
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). Is there a list of all the libx264 options online? MB -- e-mail: vid...@vidiot.com | vid...@vidiot.net/~\ The ASCII 6082066...@email.uscc.net (140 char limit) \ / Ribbon Campaign Visit - URL: http://vidiot.com/ X Against http://vidiot.net/ / \ HTML Email "You're Sherlock Holmes, wear the damn hat!" - Watson to Sherlock Sherlock - The Abominable Bride - 1/01/16 ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Recoding H.264/4.2.2 to H.264/4.2.0
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. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Recoding H.264/4.2.2 to H.264/4.2.0
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. MB -- e-mail: vid...@vidiot.com | vid...@vidiot.net/~\ The ASCII 6082066...@email.uscc.net (140 char limit) \ / Ribbon Campaign Visit - URL: http://vidiot.com/ X Against http://vidiot.net/ / \ HTML Email "You're Sherlock Holmes, wear the damn hat!" - Watson to Sherlock Sherlock - The Abominable Bride - 1/01/16 ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Recoding H.264/4.2.2 to H.264/4.2.0
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 Cheers, Moritz ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
