[FFmpeg-trac] #1401(FFplay:new): ffplay: Muted when going to foreign tty but continues playing when coming back.

[FFmpeg]

#1401: ffplay: Muted when going to foreign tty but continues playing when coming
back.
--------------------------------+----------------------------------
             Reporter:  u ltd.  |                    Owner:
                 Type:  defect  |                   Status:  new
             Priority:  minor   |                Component:  FFplay
              Version:  0.11    |               Resolution:
             Keywords:  tty     |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
--------------------------------+----------------------------------

Comment (by u ltd.):

 I made some testing, here are the results:

 '''Chosing SDL driver'''
 * SDL_AUDIODRIVER ist defaulted to "pulse"; foreign ttys don't work
 * With SDL_AUDIODRIVER="alsa" foreign work either because the default alsa
 device is the pulseaudio server
 * dsp, dma don't give me any sound
 (See attached log file which was taken without .asoundrc)

 '''Other players'''
 * vlc had the same problem, but I was able to chose my hardware directly
 in vlc settings. Then it worked on all consoles.

 '''Disabling pulseaudio'''
 * With an own .asoundrc redirecting the sound to the hardware directly all
 works fine


 '''About this ticket'''
 Does that mean that this isn't a bug of ffmpeg? Shall I submit a
 pulseaudio bug?
 Or is this a feature of pulseaudio?


 ''' Log file '''

 {{{
 me at machine:~/Dokumente> ffplay -nodisp http://url.com/stream.mp3
 ffplay version 0.11 Copyright (c) 2003-2012 the FFmpeg developers
  ...
 [mp3 @ 0x7f0764000de0] Header missing
     Last message repeated 1 times
 [mp3 @ 0x7f07640008c0] max_analyze_duration 5000000 reached at 5015510
 [mp3 @ 0x7f07640008c0] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, mp3, from 'http://url.com/stream.mp3':
   Duration: N/A, start: 0.000000, bitrate: 128 kb/s
     Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s
 [mp3 @ 0x7f0764000de0] Header missing
 ^C 123  (ffplay -nodisp http://url.com/stream.mp3)
 me at machine:~/Dokumente> echo $SDL_AUDIODRIVER
 pulse
    0  (echo $SDL_AUDIODRIVER)
 me at machine:~/Dokumente> export SDL_AUDIODRIVER=alsa
    0  (export SDL_AUDIODRIVER=alsa)
 me at machine:~/Dokumente> ffplay -nodisp http://url.com/stream.mp3
 ffplay version 0.11 Copyright (c) 2003-2012 the FFmpeg developers
  ...
 [mp3 @ 0x7f7788003740] Header missing
 [mp3 @ 0x7f7788003020] max_analyze_duration 5000000 reached at 5015510
 [mp3 @ 0x7f7788003020] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, mp3, from 'http://url.com/stream.mp3':
   Duration: N/A, start: 0.000000, bitrate: 128 kb/s
     Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s
 [mp3 @ 0x7f7788003740] Header missing
 ^C 123  (ffplay -nodisp http://url.com/stream.mp3)
 me at machine:~/Dokumente> export SDL_AUDIODRIVER=dsp
    0  (export SDL_AUDIODRIVER=dsp)
 me at machine:~/Dokumente> ffplay -nodisp http://url.com/stream.mp3
 ffplay version 0.11 Copyright (c) 2003-2012 the FFmpeg developers
  ...
 [mp3 @ 0x7f7f380088a0] Header missing
 [mp3 @ 0x7f7f380008c0] max_analyze_duration 5000000 reached at 5015510
 [mp3 @ 0x7f7f380008c0] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, mp3, from 'http://url.com/stream.mp3':
   Duration: N/A, start: 0.000000, bitrate: 128 kb/s
     Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s
 SDL_OpenAudio:
 http://url.com/stream.mp3: could not open codecs
 ^C 123  (ffplay -nodisp http://url.com/stream.mp3)
 me at machine:~/Dokumente> export SDL_AUDIODRIVER=dma
    0  (export SDL_AUDIODRIVER=dma)
 me at machine:~/Dokumente> ffplay -nodisp http://url.com/stream.mp3
 ffplay version 0.11 Copyright (c) 2003-2012 the FFmpeg developers
  ...
 [mp3 @ 0x7f7d880088a0] Header missing
 [mp3 @ 0x7f7d880008c0] max_analyze_duration 5000000 reached at 5015510
 [mp3 @ 0x7f7d880008c0] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, mp3, from 'http://url.com/stream.mp3':
   Duration: N/A, start: 0.000000, bitrate: 128 kb/s
     Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s
 SDL_OpenAudio:
 http://url.com/stream.mp3: could not open codecs
 ^C 123  (ffplay -nodisp http://url.com/stream.mp3)
 me at machine:~/Dokumente>
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1401#comment:4>
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