ffplay: no audio playback with smv files

[ami_stuff]

after seeking in the file audio starts to play correctly

​http://samples.mplayerhq.hu/smv/bear3.smv

C:\>ffplay bear3.smv
ffplay version N-54499-g63d7684 Copyright (c) 2003-2013 the FFmpeg developers
  built on Jul  6 2013 10:30:06 with gcc 4.7.3 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --
enable-libxvid --enable-zlib
  libavutil      52. 38.100 / 52. 38.100
  libavcodec     55. 18.102 / 55. 18.102
  libavformat    55. 11.101 / 55. 11.101
  libavdevice    55.  2.100 / 55.  2.100
  libavfilter     3. 78.102 /  3. 78.102
  libswscale      2.  3.100 /  2.  3.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100
Stream #0: not enough frames to estimate rate; consider increasing probesize
Input #0, wav, from 'bear3.smv':
  Duration: 00:00:29.98, start: 0.000000, bitrate: 802 kb/s
    Stream #0:0: Audio: adpcm_ima_wav ([17][0][0][0] / 0x0011), 22050 Hz, 1 chan
nels, s16p, 88 kb/s
    Stream #0:1: Video: smv, yuvj420p, 215x176, 24 fps, 24 tbr, 24 tbn, 24 tbc
    nan A-V:    nan fd=   0 aq=    0KB vq=15379KB sq=    0B f=0/0

[Marton Balint]

FFplay got no audio frames at all from the demuxer before seeking...

[Marton Balint]

Regression since 2a91038e13a00897fde89ad65a36012985687793.

[Michael Niedermayer]

regressions are important

[Michael Niedermayer]

Fixed in 6abb9eb525239f954ec12e52fc209e6dfce2a6d4