Question about difference in CodecID in AVC-I MOV/MXF (FPS 23.976 vs 25)

GoogleCodeExporter commented 8 years ago

What steps will reproduce the problem?

The source files are in 23.976 fps.

1) For MOV
When I create the MOV using ffmbc:
a) no change of FPS (23.976)
The Format/Codec ID:
Video
ID                                       : 1
Format                                   : ai13
Codec ID                                 : ai13
The Lightworks Editor (Windows) cannot import the file.

b) change the output FPS to 25
Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High 4:2:2@L4.1
Format settings, CABAC                   : No
Format settings, GOP                     : N=1
Codec ID                                 : ai12
Codec ID/Info                            : Advanced Video Coding
The Lightworks Editor (Windows) can import the file.

2) For MXF
When I create the MXF using ffmbc:

a) no change of FPS (23.976)
The codec ID is 0D01030102106001-0401020201323000.

b) change the output FPS to 25
The codec ID is 0D01030102106001-0401020201323104.

I am asking this because I want to use bmxtranswrap to re-wrap the files.
I am not sure if it is bmxtranswarp or ffmbc problem.

$ bmxtranswrap -p -t as11op1a --ps-avcihead -o rewrap-25fps.mxf 
ffmbc-avcintra100-25fps.mxf
Info: Duration: 37 (00:00:01:12 @25fps)

$ bmxtranswrap -p -t as11op1a --ps-avcihead -o rewrap-23.98fps.mxf 
ffmbc-avcintra100-23.98fps.mxf
Warning: Track 0 has unknown essence type
Warning: Ignoring track 0 (essence type 'picture essence')
ERROR: All tracks are disabled

What is the expected output? What do you see instead?
I am not sure if the codec should be the same for different FPS.

What version of the product are you using? On what operating system?
FFmbc 0.7 final on Linux.
Ligtworks Editor on Windows.

Please provide any additional information below:

- Full commandline run (with -v 3) and everything the program printed
without
the repeating parts.
Command used:
1.a) ffmbc -i /mnt-data/myvideo/new/samples/P1160144.MOV -vcodec libx264 -intra 
-target avcintra100 -an ffmbc-avcintra100-23.98fps.mov
1.b) ffmbc -i /mnt-data/myvideo/new/samples/P1160144.MOV -vcodec libx264 -intra 
-target avcintra100 -an -r 25 ffmbc-avcintra100-25fps.mov
2.a) ffmbc -i /mnt-data/myvideo/new/samples/P1160144.MOV -vcodec libx264 -intra 
-target avcintra100 -an ffmbc-avcintra100-23.98fps.mxf
2.b) ffmbc -i /mnt-data/myvideo/new/samples/P1160144.MOV -vcodec libx264 -intra 
-target avcintra100 -an -r 25 ffmbc-avcintra100-25fps.mxf

- Upload your sample somewhere and supply url

Original issue reported on code.google.com by mpatd...@gmail.com on 17 May 2014 at 9:25

Attachments:

GoogleCodeExporter commented 8 years ago

You should ask bmxtranswrap

Original comment by baptiste...@gmail.com on 20 May 2014 at 12:42

Changed state: Invalid

GoogleCodeExporter commented 8 years ago

For part 1.a):

a) no change of FPS (23.976)
The Format/Codec ID:
Video
ID                                       : 1
Format                                   : ai13
Codec ID                                 : ai13

The Lightworks Editor (Windows) cannot import the file.

The mediainfo only show Format/Codec ID.
Should it show Format/AVC profile/Format settings like the one in 25FPS?

That part is before bmxtranswrap.

Original comment by mpatd...@gmail.com on 20 May 2014 at 3:54

jslhs / ffmbc

Question about difference in CodecID in AVC-I MOV/MXF (FPS 23.976 vs 25) #178