[FFmpeg-trac] #5053(ffmpeg:new): Cannot select sample rate for the link between filters audio format

[FFmpeg]

#5053: Cannot select sample rate for the link between filters audio format
-------------------------------------+-------------------------------------
             Reporter:  mstrandgren  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  ffmpeg       |                  Version:  git-
             Keywords:               |  master
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------
 Summary of the bug:

 I upgraded from 2.8 to 2.8.3 and my project no longer worked.

 Query
 {{{
 ffmpeg -y \
 -ss 0 -i testdata/video.webm \
 -ss 0 -i backingtrack.mp3 \
 -ss 0 -i testdata/audio.wav \
 -i overlay.png \
 -i suffix.mp4 \
 -filter_complex \
 \
         "[1:a][2:a] amix=inputs=2:duration=shortest [mergedAudio]; \
         [mergedAudio] asplit=3 [fullAudio][a1][a2]; \
         [a1] atrim=0:2 [vineAudio]; \
         [a2] atrim=0:4 [instagramAudio]; \
         [0]setpts=PTS-STARTPTS[video]; \
         [video][3]overlay[overlayed]; \
         [4]setpts=PTS-STARTPTS[suffix]; \
         [suffix] split=3 [suffix1][suffix2][suffix3]; \
         [overlayed] split=3 [fullIn][instagramIn][vineIn]; \
         [vineIn] trim=0:2 [vineOut]; \
         [instagramIn] trim=0:4 [instagramOut]; \
         [fullIn][suffix1] concat=n=2:v=1:a=0 [full]; \
         [vineOut][suffix2] concat=n=2:v=1:a=0 [vine]; \
         [instagramOut][suffix3] concat=n=2:v=1:a=0 [instagram]" \
 \
 -acodec libvorbis -b:a 128k -ac 2 -r 25 -vcodec libvpx -b:v 1024k \
 -map [full] -map [fullAudio] testdata/output/full.webm \
 -map [instagram] -map [instagramAudio] testdata/output/instagram.webm \
 -map [vine] -map [vineAudio] testdata/output/vine.webm
 }}}

 Output:

 {{{
 ffmpeg version 2.8.3-static http://johnvansickle.com/ffmpeg/  Copyright
 (c) 2000-2015 the FFmpeg developers
   built with gcc 5.2.1 (Debian 5.2.1-26) 20151125
   configuration: --enable-gpl --enable-version3 --disable-shared
 --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-
 libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-
 libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig
 --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-
 gray --enable-libopenjpeg --enable-libopus --enable-libass --enable-gnutls
 --enable-libvidstab --enable-libsoxr --enable-frei0r --enable-libfribidi
 --disable-indev=sndio --disable-outdev=sndio --cc=gcc
   libavutil      54. 31.100 / 54. 31.100
   libavcodec     56. 60.100 / 56. 60.100
   libavformat    56. 40.101 / 56. 40.101
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 40.101 /  5. 40.101
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  2.101 /  1.  2.101
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, matroska,webm, from 'testdata/video.webm':
   Metadata:
     encoder         : whammy
   Duration: 00:00:08.08, start: 0.000000, bitrate: 2097 kb/s
     Stream #0:0: Video: vp8, yuv420p, 480x320, SAR 1:1 DAR 3:2, 1k tbr, 1k
 tbn, 1k tbc (default)
 [mp3 @ 0xbc38740] Skipping 0 bytes of junk at 4096.
 [mp3 @ 0xbc38740] Estimating duration from bitrate, this may be inaccurate
 Input #1, mp3, from 'backingtrack.mp3':
   Metadata:
     TSS             : Logic 10.2.0
   Duration: 00:00:08.07, start: 0.000000, bitrate: 164 kb/s
     Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 160 kb/s
 Guessed Channel Layout for  Input Stream #2.0 : stereo
 Input #2, wav, from 'testdata/audio.wav':
   Duration: 00:00:08.92, bitrate: 1411 kb/s
     Stream #2:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2
 channels, s16, 1411 kb/s
 Input #3, png_pipe, from 'overlay.png':
   Duration: N/A, bitrate: N/A
     Stream #3:0: Video: png, rgba(pc), 480x320 [SAR 2835:2835 DAR 3:2], 25
 tbr, 25 tbn, 25 tbc
 Input #4, mov,mp4,m4a,3gp,3g2,mj2, from 'suffix.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     encoder         : Lavf55.33.100
   Duration: 00:00:01.57, start: 0.000000, bitrate: 117 kb/s
     Stream #4:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 480x320 [SAR 1:1 DAR 3:2], 111 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler
 [audio format for output stream 0:1 @ 0xbc74960] Cannot select sample rate
 for the link between filters audio format for output stream 0:1 and output
 stream 0:1.
 Error configuring complex filters.
 Invalid argument
 }}}

 Also tested with git build g6b978da built on 20151130, same result.

 It works if I add a "aformat=sample_rates=44100" step in the audio filter
 chain, but this was not needed before.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5053>
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