[android-developers] Re: play video backward
Yes but for a file smaller than 1Mb it must not be too burdening to do on-device. Got some structures in c language for the video ref and diff frames. Might write the decode, reverse and encode lib in java if i dont find one :( Thanks and do let me know if you find any libs in c or java for this. R.S On Oct 13, 5:16 pm, Marco Nelissen wrote: > The video frames depend on each other, and cannot be decoded > independently. You can't simply rearrange some data within the file to > have it play backwards. > > On Tue, Oct 13, 2009 at 8:27 AM, RS wrote: > > > Thanks for the replies! I ended up reversing it offline on a server. > > But am still hunting for a way to do it on the device to avoid having > > to download two files (forward video, backward video). > > Any simple java libs out there for 3gpp reversing? > > Thanks again. > > R.S > > > On Oct 12, 5:03 pm, "Yusuf Saib (T-Mobile USA)" > Mobile.com> wrote: > >> Unless you modify the video file by concatenating a reversed version > >> with the original. There are open-source tools for transforming video > >> files (such as ffmpeg); you could possibly run one on the phone after > >> recording, or you upload it to a cloud (preferably while recording), > >> transform and download it again. > > >> Yusuf Saib > >> Android > >> ·T· · ·Mobile· stick together > >> The views, opinions and statements in this email are those of the > >> author solely in their individual capacity, and do not necessarily > >> represent those of T-Mobile USA, Inc. > > >> On Oct 12, 8:25 am, Marco Nelissen wrote: > > >> > On Mon, Oct 12, 2009 at 3:34 AM, RS wrote: > > >> > > How to play video in a time reversed direction? > > >> > You can't. > > >> > > The requirement is to loop playing forward and backward repeatedly. > >> > > Thanks a lot! > >> > > R.S > >> > > ps: The video is shot on the same android device (g1/adp1) --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: play video backward
The video frames depend on each other, and cannot be decoded independently. You can't simply rearrange some data within the file to have it play backwards. On Tue, Oct 13, 2009 at 8:27 AM, RS wrote: > > Thanks for the replies! I ended up reversing it offline on a server. > But am still hunting for a way to do it on the device to avoid having > to download two files (forward video, backward video). > Any simple java libs out there for 3gpp reversing? > Thanks again. > R.S > > On Oct 12, 5:03 pm, "Yusuf Saib (T-Mobile USA)" Mobile.com> wrote: >> Unless you modify the video file by concatenating a reversed version >> with the original. There are open-source tools for transforming video >> files (such as ffmpeg); you could possibly run one on the phone after >> recording, or you upload it to a cloud (preferably while recording), >> transform and download it again. >> >> Yusuf Saib >> Android >> ·T· · ·Mobile· stick together >> The views, opinions and statements in this email are those of the >> author solely in their individual capacity, and do not necessarily >> represent those of T-Mobile USA, Inc. >> >> On Oct 12, 8:25 am, Marco Nelissen wrote: >> >> > On Mon, Oct 12, 2009 at 3:34 AM, RS wrote: >> >> > > How to play video in a time reversed direction? >> >> > You can't. >> >> > > The requirement is to loop playing forward and backward repeatedly. >> > > Thanks a lot! >> > > R.S >> > > ps: The video is shot on the same android device (g1/adp1) > > > --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: play video backward
Thanks for the replies! I ended up reversing it offline on a server. But am still hunting for a way to do it on the device to avoid having to download two files (forward video, backward video). Any simple java libs out there for 3gpp reversing? Thanks again. R.S On Oct 12, 5:03 pm, "Yusuf Saib (T-Mobile USA)" wrote: > Unless you modify the video file by concatenating a reversed version > with the original. There are open-source tools for transforming video > files (such as ffmpeg); you could possibly run one on the phone after > recording, or you upload it to a cloud (preferably while recording), > transform and download it again. > > Yusuf Saib > Android > ·T· · ·Mobile· stick together > The views, opinions and statements in this email are those of the > author solely in their individual capacity, and do not necessarily > represent those of T-Mobile USA, Inc. > > On Oct 12, 8:25 am, Marco Nelissen wrote: > > > On Mon, Oct 12, 2009 at 3:34 AM, RS wrote: > > > > How to play video in a time reversed direction? > > > You can't. > > > > The requirement is to loop playing forward and backward repeatedly. > > > Thanks a lot! > > > R.S > > > ps: The video is shot on the same android device (g1/adp1) --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: play video backward
Please be more eloquent :) On Mon, Oct 12, 2009 at 8:55 PM, Marco Nelissen wrote: > > On Mon, Oct 12, 2009 at 3:34 AM, RS wrote: > > > > How to play video in a time reversed direction? > > You can't. > > > The requirement is to loop playing forward and backward repeatedly. > > Thanks a lot! > > R.S > > ps: The video is shot on the same android device (g1/adp1) > > > > > > > > > --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: play video backward
Unless you modify the video file by concatenating a reversed version with the original. There are open-source tools for transforming video files (such as ffmpeg); you could possibly run one on the phone after recording, or you upload it to a cloud (preferably while recording), transform and download it again. Yusuf Saib Android ·T· · ·Mobile· stick together The views, opinions and statements in this email are those of the author solely in their individual capacity, and do not necessarily represent those of T-Mobile USA, Inc. On Oct 12, 8:25 am, Marco Nelissen wrote: > On Mon, Oct 12, 2009 at 3:34 AM, RS wrote: > > > How to play video in a time reversed direction? > > You can't. > > > > > The requirement is to loop playing forward and backward repeatedly. > > Thanks a lot! > > R.S > > ps: The video is shot on the same android device (g1/adp1) --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: play video backward
On Mon, Oct 12, 2009 at 3:34 AM, RS wrote: > > How to play video in a time reversed direction? You can't. > The requirement is to loop playing forward and backward repeatedly. > Thanks a lot! > R.S > ps: The video is shot on the same android device (g1/adp1) > > > --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
