#10592: piped input partial file error
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Reporter: Mark | Type: defect
Status: new | Priority: normal
Component: undetermined | Version: 6.0
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Summary of the bug:
ffmpeg failes to read file from the piped input
ffmpeg -i - out.mp3 < in.mp4 # it works perfectly
cat in.mp4 | ffmpeg -i - out.mp3 # fails with the error below.
Why do I need it:
I'm trying to convert to pcm_s16le file while downloading it from the
internet. And this is the simplest example to reproduce the issue. cat is
the replacement of wget/curl.
How to reproduce:
{{{
% cat in.mp4 | ffmpeg -i - out.mp3
ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers
built with Apple clang version 14.0.3 (clang-1403.0.22.14.1)
configuration: --prefix=/usr/local/Cellar/ffmpeg/6.0_1 --enable-shared
--enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-
ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom
--enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-
libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-
librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1
--enable-libtesseract --enable-libtheora --enable-libvidstab --enable-
libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-
libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma
--enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-
libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-
libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-
libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox
--enable-audiotoolbox
libavutil 58. 2.100 / 58. 2.100
libavcodec 60. 3.100 / 60. 3.100
libavformat 60. 3.100 / 60. 3.100
libavdevice 60. 1.100 / 60. 1.100
libavfilter 9. 3.100 / 9. 3.100
libswscale 7. 1.100 / 7. 1.100
libswresample 4. 10.100 / 4. 10.100
libpostproc 57. 1.100 / 57. 1.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fe6f5704b80] stream 0, offset 0x2c: partial
file
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'fd:':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf60.3.100
Duration: 00:00:08.00, start: 0.000000, bitrate: N/A
Stream #0:0[0x1](eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono,
fltp, 69 kb/s (default)
Metadata:
handler_name : SoundHandle
vendor_id : [0][0][0][0]
Stream mapping:
Stream #0:0 -> #0:0 (aac (native) -> mp3 (libmp3lame))
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fe6f5704b80] stream 0, offset 0x2c: partial
file
Error demuxing input file 0: Invalid data found when processing input
fd:: Invalid data found when processing input
Output #0, mp3, to 'out.mp3':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
TSSE : Lavf60.3.100
Stream #0:0(eng): Audio: mp3, 48000 Hz, mono, fltp (default)
Metadata:
handler_name : SoundHandle
vendor_id : [0][0][0][0]
encoder : Lavc60.3.100 libmp3lame
size= 0kB time=-577014:32:22.77 bitrate=N/A speed=N/A ed=N/A
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
Output file is empty, nothing was encoded (check -ss / -t / -frames
parameters if used)
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10592>
FFmpeg <https://ffmpeg.org>
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