[FFmpeg-trac] #3043(avcodec:new): RFE: Implement updated comment header packets in OGG/vorbis streams

[FFmpeg]

#3043: RFE: Implement updated comment header packets in OGG/vorbis streams
-------------------------------------+-----------------------------------
             Reporter:  mathstuf     |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  normal       |                Component:  avcodec
              Version:  2.0.1        |               Resolution:
             Keywords:  vorbis       |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-----------------------------------

Comment (by mathstuf):

 This is output from playing a `-dumpstream` from an MPD build with tags in
 it (note the "Ignoring comment header" line when MPD changed tracks):

 {{{
 % ../ffmpeg/bin/ffplay mpd-0.15.8.dump.ogg
 ffplay version N-57001-g65c2fe7 Copyright (c) 2003-2013 the FFmpeg
 developers
   built on Oct  9 2013 23:05:22 with gcc 4.8.1 (GCC) 20130920 (Red Hat
 4.8.1-10)
   configuration: --prefix=/home/boeckb/misc/root/ffmpeg
   libavutil      52. 46.101 / 52. 46.101
   libavcodec     55. 35.100 / 55. 35.100
   libavformat    55. 19.100 / 55. 19.100
   libavdevice    55.  4.100 / 55.  4.100
   libavfilter     3. 88.101 /  3. 88.101
   libswscale      2.  5.101 /  2.  5.101
   libswresample   0. 17.103 /  0. 17.103
 [ogg @ 0x3409460] Cannot identify new stream  0KB sq=    0B f=0/0
 [ogg @ 0x3409460] failed to create or replace stream
 [ogg @ 0x3409460] Estimating duration from bitrate, this may be inaccurate
 Input #0, ogg, from 'mpd-0.15.8.dump.ogg':
   Duration: 00:02:18.05, start: 0.000000, bitrate: 109 kb/s
     Stream #0:0: Audio: vorbis, 44100 Hz, mono, fltp, 110 kb/s
     Metadata:
       COMPOSER        : Christopher Tin & Shoji Kameda
       TITLE           : A Rapture
       DATE            : 2012-02-14
       DISC            : 1
       album_artist    : Stereo Alchemy
       ALBUM           : God of Love
       ARTIST          : Stereo Alchemy
       TRACK           : 1
 [vorbis @ 0x340e640] Invalid packet1KB vq=    0KB sq=    0B f=0/0
     Last message repeated 1 times
 [vorbis @ 0x340e640] Invalid packet1KB vq=    0KB sq=    0B f=0/0
 [vorbis @ 0x340e640] Ignoring comment header  0KB sq=    0B f=0/0
 ^C%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3043#comment:3>
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