GitHub Issue #1391

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Nov 10, 2021, 11:48:47 AM11/10/21
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[BUG] Not extracting Teletext stream - rboy1
Link to Issue: https://www.github.com/CCExtractor/ccextractor/issues/1391
rboy1

CCExtractor version: 0.93

In raising this issue, I confirm the following:

  • [X ] I have read and understood the contributors guide.
  • [ X] I have checked that the bug-fix I am reporting can be replicated, or that the feature I am suggesting isn't already present.
  • [ 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 checked the pull requests tab for existing solutions/implementations to my issue/suggestion.
  • [ X] I have used the latest available version of CCExtractor to verify this issue exists.
  • [ X] I have ticked all the boxes in this section and to prove it I'm deleting the section completely to remove boilerplate text.

Necessary information

  • Is this a regression (i.e. did it work before)? {YES/NO} NO
  • What platform did you use? {Window/Linux/Mac} Windows x64
  • What were the used arguments? ccextractorwinfull.exe DVB_Teletext.wtv

Video links

https://drive.google.com/file/d/1og3RQYOI0-P11qNWL2XCWp-wVzs4LJva/view?usp=sharing

Additional information

The file contains a Teletext stream, output from ffmpeg

Stream #0:20x23: Subtitle: dvb_teletext, 492x250

It also plays in Windows Media Center

However ccextractor is unable to recognize and extract the teletext stream ``` CCExtractor 0.93, Carlos Fernandez Sanz, Volker Quetschke.

Teletext portions taken from Petr Kutalek's telxcc

Input: DVB_Teletext.wtv [Extract: 1] [Stream mode: Autodetect] [Program : Auto ] [Hauppage mode: No] [Use MythTV code: Auto] [Timing mode: Auto] [Debug: No] [Buffer input: Yes] [Use pic_order_cnt_lsb for H.264: No] [Print CC decoder traces: No] [Target format: .srt] [Encoding: UTF-8] [Delay: 0] [Trim lines: No] [Add font color data: Yes] [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: DVB_Teletext.wtv File seems to be a WTV, enabling WTV mode Analyzing data in general mode 100% | 12:26 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

Total frames time: 00:00:00:000 (0 frames at 29.97fps)

Min PTS: 00:00:01:981 Max PTS: 00:12:28:941 Length: 00:12:26:960 Done, processing time = 0 seconds Issues? Open a ticket here https://github.com/CCExtractor/ccextractor/issues ```

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