[FFmpeg-trac] #1341(FFmpeg:new): ffmpeg -async 1 broken for wmv files

FFmpeg trac at avcodec.org
Tue May 22 10:53:58 CEST 2012 

#1341: ffmpeg -async 1 broken for wmv files
---------------------------------+--------------------------------------
             Reporter:  maccara  |                     Type:  defect
               Status:  new      |                 Priority:  normal
            Component:  FFmpeg   |                  Version:  git-master
             Keywords:           |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
---------------------------------+--------------------------------------
 Seems something is awry with the master branch with -async 1.

 Used to work fine, but now I get "Error in av_buffersink_get_buffer_ref():
 Invalid argument" for most audio packets for practically all wmv files
 (and replicated with one flv file also; possibly happens in general with
 containers having variable framerate video?) resulting in corrupt audio as
 a result. A couple of files in avi container I tested did not exhibit this
 issue.

 Seems like a regression.

 Simple test case with file downloaded from
 http://sourceforge.net/projects/vspeech/files/VSpeech%20Tutorial/1.0/tur1_shortcut.WMV/download

 {{{
 ffmpeg started on 2012-05-22 at 11:29:23
 Report written to "ffmpeg-20120522-112923.log"
 Command line:
 ffmpeg -y -report -i tur1_shortcut.WMV -vn -async 1 -f wav nul
 ffmpeg version N-40932-g42e80eb Copyright (c) 2000-2012 the FFmpeg
 developers
   built on May 21 2012 11:10:22 with gcc 4.4.6 (x86.generic.Komisar)
   configuration:
 --prefix=/c/Jenkins/jobs/ffmpeg/workspace/PLATFORM/x86/dist --target-
 os=mingw32 --enable-runtime-cpudetect --enable-gpl --enable-version3
 --enable-nonfree --disable-debug --extra-
 cflags=-I/c/Jenkins/jobs/ffmpeg/workspace/PLATFORM/x86/lib/include
 --extra-ldflags=-L/c/Jenkins/jobs/ffmpeg/workspace/PLATFORM/x86/lib/lib
 --enable-avisynth --enable-libx264 --enable-libfaac --enable-openssl
 --enable-librtmp --extra-libs=-lrtmp --extra-libs=-lwinmm
   libavutil      51. 53.100 / 51. 53.100
   libavcodec     54. 21.101 / 54. 21.101
   libavformat    54.  5.101 / 54.  5.101
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 75.100 /  2. 75.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 [asf @ 03064140] Format asf probed with size=2048 and score=100
 [asf @ 03064140] gpos mismatch our pos=24, end=26
 [asf @ 03064140] gpos mismatch our pos=24, end=3207
 [asf @ 03064140] gpos mismatch our pos=24, end=38
 [asf @ 03064140] gpos mismatch our pos=24, end=246
 [asf @ 03064140] gpos mismatch our pos=24, end=38
 [asf @ 03064140] File position before avformat_find_stream_info() is 5318
 [asf @ 03064140] parser not found for codec wmav2, packets or times may be
 invalid.
 [asf @ 03064140] All info found
 rfps: 14.833333 0.016502
 rfps: 14.833333 0.016502
 rfps: 14.916667 0.004147
 rfps: 14.916667 0.004147
 rfps: 15.000000 0.000016
 rfps: 15.000000 0.000016
 rfps: 15.083333 0.004111
 rfps: 15.166667 0.016431
 rfps: 15.166667 0.016431
 rfps: 29.833333 0.016587
 rfps: 29.833333 0.016587
 rfps: 29.916667 0.004213
 rfps: 29.916667 0.004213
 rfps: 30.000000 0.000065
 rfps: 30.000000 0.000065
 rfps: 30.083333 0.004142
 rfps: 30.166667 0.016444
 rfps: 44.833333 0.016704
 rfps: 44.833333 0.016704
 rfps: 44.916667 0.004312
 rfps: 44.916667 0.004312
 rfps: 45.000000 0.000146
 rfps: 45.000000 0.000146
 rfps: 45.083333 0.004205
 rfps: 45.166667 0.016489
 rfps: 59.833333 0.016853
 rfps: 59.833333 0.016853
 rfps: 59.916667 0.004444
 rfps: 59.916667 0.004444
 rfps: 29.970030 0.000610
 rfps: 29.970030 0.000610
 rfps: 59.940060 0.002439
 rfps: 59.940060 0.002439
 rfps: 14.985015 0.000152
 rfps: 14.985015 0.000152
 [asf @ 03064140] File position after avformat_find_stream_info() is 100177
 Guessed Channel Layout for  Input Stream #0.0 : stereo
 Input #0, asf, from 'tur1_shortcut.WMV':
   Metadata:
     WMFSDKVersion   : 10.00.00.3646
     WMFSDKNeeded    : 0.0.0.0000
     IsVBR           : 0
     artist          : NGON
     copyright       : 6/26/2005
   Duration: 00:00:47.73, start: 0.000000, bitrate: 456 kb/s
     Chapter #0.0: start 3.000000, end 10.066000
     Metadata:
       title           : Clip 1
     Chapter #0.1: start 10.066000, end 12.866000
     Metadata:
       title           : Clip 2
     Chapter #0.2: start 12.866000, end 15.866000
     Metadata:
       title           : Clip 3
     Chapter #0.3: start 15.866000, end 17.399000
     Metadata:
       title           : Clip 4
     Chapter #0.4: start 17.399000, end 19.466000
     Metadata:
       title           : Clip 5
     Chapter #0.5: start 19.466000, end 21.066000
     Metadata:
       title           : Clip 6
     Chapter #0.6: start 21.066000, end 27.399000
     Metadata:
       title           : Clip 7
     Chapter #0.7: start 27.399000, end 29.266000
     Metadata:
       title           : Clip 8
     Chapter #0.8: start 29.266000, end 36.533000
     Metadata:
       title           : Clip 9
     Chapter #0.9: start 36.533000, end 47.732000
     Metadata:
       title           : Clip 10
     Stream #0:0, 5, 1/1000: Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz,
 stereo, s16, 128 kb/s
     Stream #0:1, 41, 1/1000: Video: wmv1 (WMV1 / 0x31564D57), yuv420p,
 640x480, 568 kb/s, 15 tbr, 1k tbn, 1k tbc
 [abuffer source @ 0306A980] Setting entry with key 'time_base' to value
 '1/1000'
 [abuffer source @ 0306A980] Setting entry with key 'sample_rate' to value
 '44100'
 [abuffer source @ 0306A980] Setting entry with key 'sample_fmt' to value
 's16'
 [abuffer source @ 0306A980] Setting entry with key 'channel_layout' to
 value '0x3'
 [abuffer @ 0306A920] tb:1/1000 samplefmt:s16 samplerate: 44100 ch
 layout:0x3
 [aformat filter @ 0313FC20] Setting entry with key 'sample_fmts' to value
 's16'
 -async 1 is forwarded to lavfi similarly to -af
 aresample=min_comp=0.001:min_hard_comp=0.100000
 [aresample @ 0313FE20] r:44100Hz -> r:44100Hz
 Output #0, wav, to 'nul':
   Metadata:
     WMFSDKVersion   : 10.00.00.3646
     WMFSDKNeeded    : 0.0.0.0000
     IsVBR           : 0
     artist          : NGON
     copyright       : 6/26/2005
     encoder         : Lavf54.5.101
     Chapter #0.0: start 3.000000, end 10.066000
     Metadata:
       title           : Clip 1
     Chapter #0.1: start 10.066000, end 12.866000
     Metadata:
       title           : Clip 2
     Chapter #0.2: start 12.866000, end 15.866000
     Metadata:
       title           : Clip 3
     Chapter #0.3: start 15.866000, end 17.399000
     Metadata:
       title           : Clip 4
     Chapter #0.4: start 17.399000, end 19.466000
     Metadata:
       title           : Clip 5
     Chapter #0.5: start 19.466000, end 21.066000
     Metadata:
       title           : Clip 6
     Chapter #0.6: start 21.066000, end 27.399000
     Metadata:
       title           : Clip 7
     Chapter #0.7: start 27.399000, end 29.266000
     Metadata:
       title           : Clip 8
     Chapter #0.8: start 29.266000, end 36.533000
     Metadata:
       title           : Clip 9
     Chapter #0.9: start 36.533000, end 47.732000
     Metadata:
       title           : Clip 10
     Stream #0:0, 0, 1/44100: Audio: pcm_s16le ([1][0][0][0] / 0x0001),
 44100 Hz, stereo, s16, 1411 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (wmav2 -> pcm_s16le)
 Press [q] to stop, [?] for help
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8192 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 10254 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8215 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 5641 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6655 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8226 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8170 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8182 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8181 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8222 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8176 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6153 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12277 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6118 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12321 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 9464 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 11032 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6114 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6153 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12277 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 10239 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 5260 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 9063 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12278 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6165 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6152 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12278 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6161 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12278 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 5260 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 9063 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12311 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6142 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7653 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8225 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7906 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12601 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6098 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8754 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12278 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6142 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7432 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8416 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8700 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 11307 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7112 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8226 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7401 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8491 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8151 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8195 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8700 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8215 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12278 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6123 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7696 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8680 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 11429 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6495 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8711 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8215 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7666 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8182 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8710 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8215 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8171 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8181 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8226 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8171 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7696 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8181 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8681 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8215 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12267 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 5216 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 4526 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 10783 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 5608 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12277 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 9842 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 11120 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 5412 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8931 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7686 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8181 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8711 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12321 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6142 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8182 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8181 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7432 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8975 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 5652 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6103 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6192 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7784 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 9108 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12277 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 18406 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6151 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 10204 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 10283 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 10238 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 9312 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6303 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6902 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8182 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7696 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8181 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8226 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12291 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6628 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8225 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 5588 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8711 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8215 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8171 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8181 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8182 audio samples
 size=       0kB time=00:00:40.54 bitrate=   0.0kbits/s
 discarding 8225 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6137 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6147 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8182 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8195 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8196 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8195 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8196 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8195 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8196 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8195 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8152 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 6161 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8226 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8171 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8181 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8196 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8170 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 12322 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 5216 audio samples
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 9107 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 8215 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 [aresample @ 0313FE20] [SWR @ 030CAEA0] discarding 7421 audio samples
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 size=       0kB time=00:00:47.97 bitrate=   0.0kbits/s

 video:0kB audio:8200kB global headers:0kB muxing overhead -100.000000%
 }}}
 Note: I chose the test file at random - I can replicate this issue with
 practically all wmv files now, whereas this used to work fine in older
 ffmpeg versions.

 Note 2: I'm just now bisecting which commit breaks async 1 and will add
 that info once done.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1341>
FFmpeg <http://ffmpeg.org>
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