C:\>ffmpeg -i qcelp_13k.mov out.wav
ffmpeg version 3.2.git Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.6.2 (GCC)
configuration: --disable-pthreads --enable-gpl --disable-ffprobe
libavutil 55. 43.100 / 55. 43.100
libavcodec 57. 72.100 / 57. 72.100
libavformat 57. 62.100 / 57. 62.100
libavdevice 57. 2.100 / 57. 2.100
libavfilter 6. 69.100 / 6. 69.100
libswscale 4. 3.101 / 4. 3.101
libswresample 2. 4.100 / 2. 4.100
libpostproc 54. 2.100 / 54. 2.100
[qcelp @ 0667d680] Warning: not compiled with thread support, using thread emula
tion
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'qcelp_13k.mov':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2016-12-29T13:36:49.000000Z
Duration: 00:01:00.00, start: 0.000000, bitrate: 14 kb/s
Stream #0:0(eng): Audio: qcelp (Qclp / 0x706C6351), 8000 Hz, mono, flt (defa
ult)
Metadata:
creation_time : 2016-12-29T13:36:49.000000Z
handler_name : Procedura obs│ugi skrˇtˇw danych Apple
[qcelp @ 06a221c0] Warning: not compiled with thread support, using thread emula
tion
[pcm_s16le @ 06a36fc0] Warning: not compiled with thread support, using thread e
mulation
Output #0, wav, to 'out.wav':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
ISFT : Lavf57.62.100
Stream #0:0(eng): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s
16, 128 kb/s (default)
Metadata:
creation_time : 2016-12-29T13:36:49.000000Z
handler_name : Procedura obs│ugi skrˇtˇw danych Apple
encoder : Lavc57.72.100 pcm_s16le
Stream mapping:
Stream #0:0 -> #0:0 (qcelp (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
[qcelp @ 06a221c0] Frame #105, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #577, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1152, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1154, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1155, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1156, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1157, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1158, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1159, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1160, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1161, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1162, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1163, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1164, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1165, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1166, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1167, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1168, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1169, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1170, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1171, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1172, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1173, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1825, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1826, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1828, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1831, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1832, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1833, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1834, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1835, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1836, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1837, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1838, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1839, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1840, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1841, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1842, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1843, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1844, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1845, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1846, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1848, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1849, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1850, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1851, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1852, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1853, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1854, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1855, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1856, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1857, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1858, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1859, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1860, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1861, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1862, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1863, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1864, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1865, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1866, IFQ: Badly received packets in frame.
[qcelp @ 06a221c0] Frame #1867, IFQ: Badly received packets in frame.
size= 938kB time=00:01:00.00 bitrate= 128.0kbits/s speed=240x
video:0kB audio:938kB subtitle:0kB other streams:0kB global headers:0kB muxing o
verhead: 0.008125%
I wonder if there is an issue.