Re: [FFmpeg-user] Wrong TC read with doubled Framenumber read out when input is 50p
> On 06 Nov 2022, at 21:35, Björn Büchel via ffmpeg-user > wrote: > > Hi Bouke, > Thanks for the reply. You are right, that makes no sense. But this is what I > found out. > I checked the TC with Avid Media Composer as well as with Resolve and > Premiere. > In all three Apps the TC is identical. > Björn Hi Björn, Did you try QTchange as well? (If not, please do, the free demo will do just fine.) https://www.videotoolshed.com/handcrafted-timecode-tools/qtchange/ It’s partly based on FFmpeg, so it ‘should’ give the same results. There are a couple of thousend end users, including some major broadcasters / studios, and I have not have any complaint like you describe… So, this is strange. Bouke > > —- > > Björn Büchel > Am Hüpplingsgraben 5 > 42799 Leichlingen > 0152 / 051 051 00 > bjoernbuec...@me.com > > >> Am 06.11.2022 um 11:10 schrieb Bouke / Videotoolshed >> : >> >> >>> >>> On 6 Nov 2022, at 08:42, Björn Büchel via ffmpeg-user >>> wrote: >>> >>> Hi, when I pass a 50p h264 or h265 Video to "ffmpeg -i" without any further >>> code the console shows the "TC In" of the Video. But the Frame coloumn of >>> the File is doubled so the output has the wrong TC. >>> e.g. >>> orginial File TC: 10:00:00:05 >>> ffmpeg -i shows: 10:00:00:10 >>> >>> or e.g. >>> orginial File TC: 10:00:00:45 >>> ffmpeg -i shows: 10:00:01:40 >>> >>> Is this a known issue or does anyone have a workaround? >> >> This I’ve never seen. I know that the TC is written as frames in Mov, Mp4 >> and MXF, so you need the frame rate to convert to HH MM SS FF >> This sometimes goes wrong, so different apps calculate different TC values, >> but that is always the entire number doubled / halved. >> In your case only the frames are doubled, this makes no sense, a frames to >> tc routine will not use a different FPS for hours / minutes / seconds and >> frames. >> >> When you say ‘original File TC’, what makes you so sure that is indeed >> correct? What software tells you that? Did you try other apps? (Resolve / >> Premiere / Avid / Quicktime player / whatever you have.) >> >> Bouke >> >> >>> I would appreciate your help. >>> Björn >>> ___ >>> ffmpeg-user mailing list >>> ffmpeg-user@ffmpeg.org >>> https://ffmpeg.org/mailman/listinfo/ffmpeg-user >>> >>> To unsubscribe, visit link above, or email >>> ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". >> >> ___ >> ffmpeg-user mailing list >> ffmpeg-user@ffmpeg.org >> https://ffmpeg.org/mailman/listinfo/ffmpeg-user >> >> To unsubscribe, visit link above, or email >> ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Wrong TC read with doubled Framenumber read out when input is 50p
Hi Bouke, Thanks for the reply. You are right, that makes no sense. But this is what I found out. I checked the TC with Avid Media Composer as well as with Resolve and Premiere. In all three Apps the TC is identical. Björn —- Björn Büchel Am Hüpplingsgraben 5 42799 Leichlingen 0152 / 051 051 00 bjoernbuec...@me.com > Am 06.11.2022 um 11:10 schrieb Bouke / Videotoolshed > : > > >> >> On 6 Nov 2022, at 08:42, Björn Büchel via ffmpeg-user >> wrote: >> >> Hi, when I pass a 50p h264 or h265 Video to "ffmpeg -i" without any further >> code the console shows the "TC In" of the Video. But the Frame coloumn of >> the File is doubled so the output has the wrong TC. >> e.g. >> orginial File TC: 10:00:00:05 >> ffmpeg -i shows: 10:00:00:10 >> >> or e.g. >> orginial File TC: 10:00:00:45 >> ffmpeg -i shows: 10:00:01:40 >> >> Is this a known issue or does anyone have a workaround? > > This I’ve never seen. I know that the TC is written as frames in Mov, Mp4 and > MXF, so you need the frame rate to convert to HH MM SS FF > This sometimes goes wrong, so different apps calculate different TC values, > but that is always the entire number doubled / halved. > In your case only the frames are doubled, this makes no sense, a frames to tc > routine will not use a different FPS for hours / minutes / seconds and frames. > > When you say ‘original File TC’, what makes you so sure that is indeed > correct? What software tells you that? Did you try other apps? (Resolve / > Premiere / Avid / Quicktime player / whatever you have.) > > Bouke > > >> I would appreciate your help. >> Björn >> ___ >> ffmpeg-user mailing list >> ffmpeg-user@ffmpeg.org >> https://ffmpeg.org/mailman/listinfo/ffmpeg-user >> >> To unsubscribe, visit link above, or email >> ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] combining audio and video
Am So., 6. Nov. 2022 um 12:50 Uhr schrieb owen s : > > Is it possible to have two urls, one streaming audio and one for video; > using ffmpeg to combine these streams and just playing them as one without > saving a file? Note that synchronisation can be an issue. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] combining audio and video
On 2022-11-06T12:50:16+0100, owen s wrote: > Is it possible to have two urls, one streaming audio and one for video; > using ffmpeg to combine these streams and just playing them as one without > saving a file? Sure. ffmpeg -i "" -i "" -c copy -f nut - | ffplay -autoexit - ffmpeg -i "" -i "" -c copy -f nut - | mpc-hc - /close or of course: mpc-hc "" /dub "" /close -- Reino ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] combining audio and video
Is it possible to have two urls, one streaming audio and one for video; using ffmpeg to combine these streams and just playing them as one without saving a file? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Wrong TC read with doubled Framenumber read out when input is 50p
> > On 6 Nov 2022, at 08:42, Björn Büchel via ffmpeg-user > wrote: > > Hi, when I pass a 50p h264 or h265 Video to "ffmpeg -i" without any further > code the console shows the "TC In" of the Video. But the Frame coloumn of the > File is doubled so the output has the wrong TC. > e.g. > orginial File TC: 10:00:00:05 > ffmpeg -i shows: 10:00:00:10 > > or e.g. > orginial File TC: 10:00:00:45 > ffmpeg -i shows: 10:00:01:40 > > Is this a known issue or does anyone have a workaround? This I’ve never seen. I know that the TC is written as frames in Mov, Mp4 and MXF, so you need the frame rate to convert to HH MM SS FF This sometimes goes wrong, so different apps calculate different TC values, but that is always the entire number doubled / halved. In your case only the frames are doubled, this makes no sense, a frames to tc routine will not use a different FPS for hours / minutes / seconds and frames. When you say ‘original File TC’, what makes you so sure that is indeed correct? What software tells you that? Did you try other apps? (Resolve / Premiere / Avid / Quicktime player / whatever you have.) Bouke > I would appreciate your help. > Björn > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] Wrong TC read with doubled Framenumber read out when input is 50p
Hi, when I pass a 50p h264 or h265 Video to "ffmpeg -i" without any further code the console shows the "TC In" of the Video. But the Frame coloumn of the File is doubled so the output has the wrong TC. e.g. orginial File TC: 10:00:00:05 ffmpeg -i shows: 10:00:00:10 or e.g. orginial File TC: 10:00:00:45 ffmpeg -i shows: 10:00:01:40 Is this a known issue or does anyone have a workaround? I would appreciate your help. Björn ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
