[FFmpeg-trac] #4221(undetermined:new): Teletext streams from DVB-S recording (mis)identified as MP3 audio with 0 channels / unknown stream

FFmpeg trac at avcodec.org
Sun Jan 4 04:53:35 CET 2015


#4221: Teletext streams from DVB-S recording (mis)identified as MP3 audio with 0
channels / unknown stream
--------------------------------------+----------------------------------
             Reporter:  olifre        |                     Type:  defect
               Status:  new           |                 Priority:  normal
            Component:  undetermined  |                  Version:  2.5.2
             Keywords:                |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
--------------------------------------+----------------------------------
 When trying to decode a DVB-S recording with teletext streams in it, these
 streams are mistaken as e.g.
 - {{{Stream #0:1[0x68], 127, 1/90000: Audio: mp3, 0 channels, s16p}}}
 - {{{Stream #0:5[0x69], 2, 1/90000: Unknown: none}}}

 This is with ffmpeg 2.5.2.

 Full ffprobe-report created with
 {{{% ffprobe sample.ts -report}}}
 and sample.ts are attached.

 Some more details about the streams:
 - Stream #0:0[0x65]: video (correct)
 - Stream #0:1[0x68]: First teletext PID, misrecognized as MP3 with 0 ch.
 - Stream #0:2[0x6a]: real audio (AC3)
 - Stream #0:3[0x67]: real audio (mp2)
 - Stream #0:4[0x66]: real audio (mp2)
 - Stream #0:5[0x69]: Should be second teletext PID, recognized as
 "unknown"

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4221>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list