GUI to split a h.264 GOP?

[Cela]

Why? To get an I-frame where it should be for cutting with one of the many I-frame-only TS cutters.

Something like:
input: have a h.264 TS and the timecode tc1 of the start of the GOP_Original (from an AVCHD camcorder or from DVB-S2)
process: split/re-encode that GOP into 2 parts, GOP_A and GOP_B, so that GOP_B starts with the desired I-frame
output: output GOP_A and GOP_B (as TS consistent with GOP_Original, each)

I'm just a user, but I guess the necessary re-encoding should be possible with x.264.
Did not find a solution, yet. Any solution?

[flebber]

GOP has only recently been added to X264. But given that the mpeg2 implementation is different to mpeg4 and in mpeg4 GOP could be an IDR or an I frame your request may not prove fruitful.

I found these post helpful in understanding GOP.

http://forum.doom9.org/showthread.php?p=1300124#post1300124

http://forum.doom9.org/showthread.php?p=1300782#post1300782

[Cela]

Thanks for your suggested reading.

But I am user. I would need a GUI which would do the job for me. Not the reading but the frame-accurate cutting of a h.264 TS/ m2ts, of course.

[laserfan]

Have you looked into VRD TVSuite4 h264? I believe it does what you want. Read the first post here carefully--the trial version, which means Free for 15 Days, is limited to 15 *minutes* of output unless you register your email address with them for a trial key. Then you have 15 days full access.

http://www.videoredo.net/msgBoard/showthread.php?t=15759

[Cela]

Have you looked into VRD TVSuite4 h264? ...Did not know it! Thanks! That's hot! :)

For editing of my DVB-S2 SAT TV recording (which I make using DVBViewer Pro) and my own AVCHD camcorder footage I currently use TSPE_0.760 and Cypheros TSDoctor. Both do a good job for me.

Lately I begin to miss frame accurate cutting with smart re-encoding, especially for my camcorder footage.

My main focus is:
1. Ease of use (Drag&Drop media files input, etc.)
2. Easy navigation (options for iterative stepping to desired cut- or chapter-point in video (including quick return to previous step, Undo last step, remember positions by marker points, navigation icons with refinements of step sizes, icons for of GOP-frame-structure/I-frames navigation, Play/Pause via Space key, GoTo timecode, etc.)
3. Video&Audio Preview (Play some seconds From/To candidate point; Play some sections from & to concatination point of 2 segments - anticipating behavior of what I will hear and see when the output will have been done, etc.)
4. EDL and named chapter export to textfile and import of respective textfile (symmetry of ex-/import)
5. TS in -> TS out ! Output properties must be same as input properties! Take (h.264) profile and take container type from input footage, use same for output!
Remember, I simply want to cut my original input footage. I definitely do not want to re- or transcode it!

The major brands concentrate on effects and heavy re-encoding. Many do not even accept TS as input!

Two weeks ago I started testing DVR-Studio HD2 from Haenlein Software which is GOP-accurate only, and will stay so for the near future.

Then I saw here in doom9 a link to Fame-ring's Smart Cutter which claims to be "World's first frame accurate H.264 AVCHD cutter without re-encoding!". It is an interesting product. My first test show me that it really does smart cutting.

Now, with your link to VRD TVSuite4 h264, I am very happy to have two choices to produce good input data for my favorite AVCHD authoring program, Dean's great multiAVCHD!

Thanks a lot!

[laserfan]

Now, with your link to VRD TVSuite4 h264, I am very happy to have two choices...Well, I dunno if it meets all your needs, but what it does do, it tends to do very well indeed. With a two week trial you ought to be able to beat-up on it pretty good.

Best of luck!