I tried using some AtomicParslet commands e.g AtomicParsley giphy9.mp4 --meta-uuid "beam" text "loop"
But it doesn't add stuff like its needed as shown in the stackoverflow article Some help please... On Fri, Jan 12, 2018 at 8:18 AM, Vikram Parmar <parmar.vik...@gmail.com> wrote: > You mentioned the presence of "LOOP" atom in apple docs, > https://developer.apple.com/library/content/documentation/ > QuickTime/QTFF/QTFFChap2/qtff2.html > > Could this "loop" be the same thing? If so, how to add this apple movie > atom via ffmpeg? > > But the "loop" atom I need would be needed at the start of the file before > the moov atom, I wonder where the apple "LOOP" atom gets headed in the > file... > > On 12 Jan 2018 08:15, "Vikram Parmar" <parmar.vik...@gmail.com> wrote: > >> Hey Moritz, >> >> Thanks for the detailed reply... >> >> Any other tools you are aware of which would allow adding of custom >> atoms? Those instructions in stackoverflow answer were quite daunting. >> Woukd mp4box help in any way? We are using php, would it be possible to >> add/modify file headers in php? >> >> Also, there is a "beam" atom too before the "loop" atom, is that too a >> custom non standard atom? >> >> Thanks.... >> >> On 12 Jan 2018 02:00, "Moritz Barsnick" <barsn...@gmx.net> wrote: >> >>> On Thu, Jan 11, 2018 at 15:33:43 +0530, Vikram Parmar wrote: >>> > Is it possible to add some custom atom in the header of a video file? >>> >>> No, ffmpeg can't add custom or arbitrary atoms. >>> >>> > I need to add the term "loop" in the header of MP4 files before the >>> "moov" >>> > atom. >>> > >>> > More information can be found here : >>> > >>> > https://stackoverflow.com/questions/44893316/whatsapp-video- >>> as-gif-sharing-on-android-programatically >>> >>> That doesn't seem to be a standard atom. I do see mention of a "LOOP" >>> atom here though: >>> >>> https://developer.apple.com/library/content/documentation/Qu >>> ickTime/QTFF/QTFFChap2/qtff2.html >>> >>> > Note: Just opening the video file using any text editor shows the file >>> > header and atoms. >>> >>> AtomicParsley is a nice tool for showing atoms and their hierarchies. >>> >>> > I do not want to edit the headers via too much calculations, as the >>> answer >>> > suggests. Is there a simple FFMPEG command to add the atom "loop" to >>> any >>> > MP4 files? >>> >>> If those instructions work, they're probably scriptable, and you're >>> best off with that. >>> >>> AtomicParsley, while being able to edit atoms, unfortunately doesn't >>> seem to be able to add arbitrary atoms. >>> >>> If the atom was some kind of standard, you could modify ffmpeg to add >>> it (e.g. with an output option similar to the gif muxer's "-loop"). >>> >>> > I wish to add some parameter to the above command (or maybe run a >>> separate >>> > command) so that the output mp4 file has that "loop" atom in the >>> header. >>> >>> Someone who knows their way around this fishy atom business ("fishy" >>> just because I'm too stupid to wrap my head around it) could probably >>> implement this in ffmpeg in a breeze. Since, from what I found, it's >>> not even "standard", I doubt it would be accepted for ffmpeg. >>> >>> 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". >> >> _______________________________________________ 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".
