[FFmpeg-trac] #3729(avcodec:new): FFMPEG should show warnings when FLAC encoder produce non-subset stream

FFmpeg trac at avcodec.org
Fri Jun 20 10:21:27 CEST 2014


#3729: FFMPEG should show warnings when FLAC encoder produce non-subset stream
-------------------------------------+-------------------------------------
             Reporter:  Vika         |                    Owner:
  Apelsinova                         |                   Status:  new
                 Type:  enhancement  |                Component:  avcodec
             Priority:  wish         |               Resolution:
              Version:  git-master   |               Blocked By:
             Keywords:  flac         |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by cehoyos):

 Replying to [comment:2 Vika Apelsinova]:
 > Reference FLAC encoder generates Subset streams by default unless the "
 --lax" command-line option is used.

 This sounds as if FFmpeg would not create Subset streams by default: Could
 you provide a sample command line including complete, uncut console output
 if FFmpeg by default creates streams that do not conform to the subset?

 > There are hardware decoders that can't decode non-subset stream
 (especially streams with sample size in bits > 24).

 Which isn't supported by FFmpeg.
 Please name the affected hardware decoders.

 > There are also software players that can't decode non-subset stream
 (e.g. please see
 https://code.google.com/p/android/issues/detail?id=35348).

 This report doesn't sound very informative: Do you have a sample file that
 cannot be played by the Android player?

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3729#comment:3>
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