[FFmpeg-trac] #1487(avformat:new): ffmpeg's mpeg mux bug(s) never fixed...

[FFmpeg]

#1487: ffmpeg's mpeg mux bug(s) never fixed...
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             Reporter:  downuse      |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avformat
              Version:  unspecified  |               Resolution:
             Keywords:  mpeg         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by downuse):

 Replying to [comment:5 michael]:

 MPG files muxed with ffmpeg just can't play in most karaoke's mpg play
 system.
 so i tried to found the reason in many ways, finally i found these


 i use Mediainfo to see the mpg info.
 the playable one's audio info is (it is muxed with mplex.exe(a stuff of
 mjpegtools-2.0.0))

 {{{
 Audio
 ID                                       : 192 (0xC0)
 Format                                   : MPEG Audio
 Format version                           : Version 1
 Format profile                           : Layer 2
 Duration                                 : 3s 0ms
 Bit rate mode                            : Constant
 Bit rate                                 : 96.0 Kbps
 Channel(s)                               : 2 channels
 Sampling rate                            : 48.0 KHz
 Compression mode                         : Lossy
 Stream size                              : 35.2 KiB (9%)
 }}}

 and the non-playable one
 it has a Delay relative to video : -67ms
 {{{
 Audio
 ID                                       : 192 (0xC0)
 Format                                   : MPEG Audio
 Format version                           : Version 1
 Format profile                           : Layer 2
 Duration                                 : 3s 0ms
 Bit rate mode                            : Constant
 Bit rate                                 : 96.0 Kbps
 Channel(s)                               : 2 channels
 Sampling rate                            : 48.0 KHz
 Compression mode                         : Lossy
 Delay relative to video                  : -67ms
 Stream size                              : 35.2 KiB (9%)
 }}}

 i use MPEG PS Utils to see the PS Format Info, this software is added to
 the attachment.

 the non-playable mpg file's system_clock_reference_base is not begin with
 Zero and its mux-rate seems to large.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1487#comment:6>
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