ccextractor
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CCExtractor
[BUG] SCC extraction from mov file results in an empty SCC file
CCExtractor version:0.94
- regression?{no}
- What platform did you use? {Mac 12.2.1}
- What were the used arguments? `ccextractor -in=mp4 -out=scc -nofc -dru /Volumes/Drive5/Whacked/WhackedOutVideos_short.mov -o /Volumes/Drive5/Whacked/WhackedOutVideos_short.scc'
Video links
http://videopress.s3.amazonaws.com/samples/Whacked/WhackedOutVideos_short.mov
Additional information
A .scc file is created, but it has no captions. Captions are displayed in the terminal window in SRT format while the job is running. Tried with multiple mov files. Terminal output here:
ccextractor -in=mp4 -out=scc -nofc -dru /Volumes/Drive5/Whacked/WhackedOutVideos_short.mov -o /Volumes/Drive5/Whacked/WhackedOutVideos_short.scc CCExtractor 0.94, Carlos Fernandez Sanz, Volker Quetschke. Teletext portions taken from Petr Kutalek's telxcc
Input: /Volumes/Drive5/Whacked/WhackedOutVideos_short.mov [Extract: 1] [Stream mode: MP4] [Program : Auto ] [Hauppage mode: No] [Use MythTV code: Auto] [CEA-708: 63 decoders active] [CEA-708: using charset "none" for all services] [Timing mode: Auto] [Debug: No] [Buffer input: No] [Use pic_order_cnt_lsb for H.264: No] [Print CC decoder traces: No] [Target format: .scc] [Encoding: UTF-8] [Delay: 0] [Trim lines: No] [Add font color data: No] [Add font typesetting: Yes] [Convert case: No][Filter profanity: No] [Video-edit join: No] [Extraction start time: not set (from start)] [Extraction end time: not set (to end)] [Live stream: No] [Clock frequency: 90000] [Teletext page: Autodetect] [Start credits text: None] [Quantisation-mode: CCExtractor's internal function]
Opening file: /Volumes/Drive5/Whacked/WhackedOutVideos_short.mov Analyzing data with GPAC (MP4 library) Opening '/Volumes/Drive5/Whacked/WhackedOutVideos_short.mov': ok Track 1, type=soun subtype=in24 Track 2, type=soun subtype=in24 Track 3, type=soun subtype=in24 Track 4, type=soun subtype=in24 Track 5, type=tmcd subtype=tmcd Track 6, type=vide subtype=avc1 Track 7, type=clcp subtype=c708 MP4: found 7 tracks: 1 avc and 1 cc Processing track 1, type=soun subtype=in24 Processing track 2, type=soun subtype=in24 Processing track 3, type=soun subtype=in24 Processing track 4, type=soun subtype=in24 Processing track 5, type=tmcd subtype=tmcd Processing track 6, type=vide subtype=avc1 Processing track 7, type=clcp subtype=c708 00:00:02:501 --> 00:00:02:501 00:00:02:502 --> 00:00:03:636 Or is this synchronized 00:00:03:637 --> 00:00:05:971 Or is this synchronized stick poking? 00:00:05:972 --> 00:00:07:173 Or is this synchronized stick poking? Actually, those are the rods 00:00:07:174 --> 00:00:08:841 stick poking? Actually, those are the rods they use to locate lost people 00:00:08:842 --> 00:00:10:443 Actually, those are the rods they use to locate lost people or objects in up to 12 feet 00:00:10:444 --> 00:00:12:478 they use to locate lost people or objects in up to 12 feet of powder. 00:00:12:479 --> 00:00:13:512 or objects in up to 12 feet of powder. In this case, they find this 00:00:13:513 --> 00:00:15:981 of powder. In this case, they find this dude's video camera. 00:00:15:982 --> 00:00:17:350 In this case, they find this dude's video camera. And the swear blizzard 00:00:17:351 --> 00:00:18:784 dude's video camera. And the swear blizzard starts again. 00:00:18:785 --> 00:00:22:755 And the swear blizzard starts again. (bleeping) 00:00:22:756 --> 00:00:24:623 starts again. (bleeping) Two-thirds of the world 00:00:24:624 --> 00:00:26:425 (bleeping) Two-thirds of the world is covered by water 00:00:28:661 --> 00:00:28:661 Two-thirds of the world is covered by water and the rest is covered by us. 00:00:28:662 --> 00:00:30:029 is covered by water and the rest is covered by us. Time to gather up all the goofy 100% | 00:29 Closing media: ok Found 1 AVC track(s). Found 1 CC track(s).
Total frames time: 00:00:00:000 (0 frames at 29.97fps)
Min PTS: 00:00:00:000 Max PTS: 00:00:29:996 Length: 00:00:29:996 Done, processing time = 0 seconds 00:00:30:030 --> 00:00:30:029 and the rest is covered by us. Time to gather up all the goofy goings-on from around the globe
No captions were found in input. Issues? Open a ticket here
A little more information: two output files were created. One looks like a temp file, one is the specified -o file. The temp is zero K, the specified output just has the scc header text and nothing else "Scenarist_SCC V1.0" WhackedOutVideos_short.p0.svc01.scc WhackedOutVideos_short.scc
Downgrade from ffmpeg 5 to 4.4. Reinstalled ccextractor 0.94. Same issue.
http://videopress.s3.amazonaws.com/samples/Whacked/WhackedOutVideos_short.mov
Link doesn't work. Please share the video again
Sorry about that. Try this: https://drive.google.com/file/d/13p6HBxGXlm0BGpaS15JwCJjfnBdm_Qbm/view?usp=sharing
or if you get a bad MIME type in firefox, try this: https://drive.google.com/file/d/1lu5jaRs5eY7clTXaB2AFPkYX7qkOh01K/view?usp=sharing
Sorry about that. Try this: https://drive.google.com/file/d/13p6HBxGXlm0BGpaS15JwCJjfnBdm_Qbm/view?usp=sharing or if you get a bad MIME type in firefox, try this: https://drive.google.com/file/d/1lu5jaRs5eY7clTXaB2AFPkYX7qkOh01K/view?usp=sharing
@canihavesomecoffee if you could upload this to SP
@shazbot666 Subtitles are being extracted, just not being written to the file. The issue here is that 708 decoder doesn't support SCC format. I am not sure if it can support it as SCC seems to be closely linked to 608.
@cfsmp3 any idea if it can be done?
@shazbot666 Subtitles are being extracted, just not being written to the file. The issue here is that 708 decoder doesn't support SCC format. I am not sure if it can support it as SCC seems to be closely linked to 608.
@cfsmp3 any idea if it can be done?
https://www.rev.com/blog/cea-608-captions-vs-cea-708-captions
What file format should I use for CEA-708 captions?
Scenarist (.scc) is the standard caption file format to deliver the CEA-608 and CEA-708 captions.
For now (i.e. until that's implemented) if SCC is selected as output we should export 608 instead of 708. Or report an error and make the user be explicit and select 608 :-)
For now (i.e. until that's implemented) if SCC is selected as output we should export 608 instead of 708. Or report an error and make the user be explicit and select 608 :-)
That sounds right, I don't think there is any actual 708 data in the test file, its 608 data in a 708 container. If that makes sense.
From mediainfo:
Text #1 ID : 7-CC1 Format : EIA-608 Muxing mode : Final Cut / CDP Codec ID : c708
Or report an error and make the user be explicit and select 608 :-)
We do report an error, but its in the 708 logs, which have to be enabled by using the -708 flag. Also, selecting 608 won't work here, because its 608 data in 708 container, so only the 708 decoder can be used here
I'll create a issue for adding SCC support to 708
[CEA-708: 63 decoders active] in the line where this -in=mp4: Input file formet is MP4-out=ssc: Output file format is SSC-nofc: Do not use frame timestamps in this file saver
I am reporting here the output I got with the method described here. I was able to replicate the output on the screen but the behaviour of the files were different when i entered them using nano. I have used the video link given here. I have changed the name of the video file to sccsupport.mov
In WSL Debian inside /ccextractor/linux when i write ./ccextractor -out=scc -nofc -dru /mnt/c/users/supra/ClonedProjects/CCExtractor/sccsupport.mov -o sccsupport.scc i get the subtitles on the screen but the last line reads 'No captions were found in input' and i get two output files - sccsupport.scc which is empty and sccsupport.p0.svc01.scc which is also empty.
When I write ./ccextractor -out=scc -nofc -dru /mnt/c/users/supra/ClonedProjects/CCExtractor/sccsupport.mov -o sccsupport.srt i again see the subtitles on the screen but the last line reads 'No captions were found in input' and i get two output files - sccsupport.srt which is empty and sccsupport.p0.svc01.scc which is also empty.
When I write ./ccextractor -out=srt -nofc -dru /mnt/c/users/supra/ClonedProjects/CCExtractor/sccsupport.mov -o sccsupport.srt i do not see the subtitles on the screen and the last line reads 'No captions were found in input' and i get two output files - sccsupport.srt which is empty and sccsupport.p0.svc01.srt which contains the subtitles.
