BUG: ccextractor 0.94 cannot find dvb subtitles, vlc works fine...

[robclemamzn]

CCExtractor version: 0.94 built on macos 13.5.2

In raising this issue, I confirm the following:

• [ x] I have read and understood the contributors guide.

• [ x] I have checked that the issue I'm posting isn't already reported.

• [ x] I have checked that the issue I'm porting isn't already solved and no duplicates exist in closed issues and in opened issues

• [ x] I have used the latest available version of CCExtractor to verify this issue exists.

Necessary information

• Is this a regression (i.e. did it work before)? {YES/NO} UNK
• What platform did you use? Macos 13.5.2
• What were the used arguments? {replace with the arguments}

./ccextractor -stdout -codec dvbsub -teletext -datapid 461 /Users/path/arc1.000001.ts

Video links

https://dxl5rnnj43ic4.cloudfront.net/MISC/arc1.000001.ts

Additional information

VLC finds and displays two subtitle tracks with valid content from the linked segment abouve
ccextractor apparently "detects" those tracks but displays nothing -- can you assist?

FYI the eng subtitle track reads in part "I love it! Come on, go!" in both eng and french

This might be user error but it seems ccextractor cannot find/decode the data.

---

Opening file: /Users/path/a/b/c/arc1.000001.ts
File seems to be a transport stream, enabling TS mode
Analyzing data in general mode
DVB subtitles detected, OCR subsystem not present. Use -out=spupng for graphic output
DVB subtitles detected, OCR subsystem not present. Use -out=spupng for graphic output
Sending captions to stdout.
100% | 00:10
Teletext decoder: 5 packets processed

Number of NAL_type_7: 0
Number of VCL_HRD: 0
Number of NAL HRD: 0
Number of jump-in-frames: 0
Number of num_unexpected_sei_length: 0

Min PTS: 00:00:18:625
Max PTS: 00:00:29:000
Length: 00:00:10:375
Done, processing time = 0 seconds

No captions were found in input.

[mmenzyns]

there is the answer in your program output:
DVB subtitles detected, OCR subsystem not present. Use -out=spupng for graphic output