[FFmpeg-trac] #8106(undetermined:reopened): Unexpected audio truncation with `-c:a copy`
FFmpeg
trac at avcodec.org
Mon Jan 6 23:45:38 EET 2020
#8106: Unexpected audio truncation with `-c:a copy`
-------------------------------------+-------------------------------------
Reporter: gdgsdg123 | Owner:
Type: defect | Status: reopened
Priority: normal | Component:
| undetermined
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Changes (by gdgsdg123):
* status: closed => reopened
* resolution: needs_more_info =>
Comment:
Replying to [comment:6 cehoyos]:
> Is "random.png" necessary to reproduce the issue or is it reproducible
with `testsrc`?
Likely not. No idea how to use `testsrc` nor do I have much interest in
figuring it out...
[ticket:8106 gdgsdg123]:
> I believe similar behavior shall occur with different audio/video input.
> (actually... happened to notice this when trying to spam some random
stuff on !YouTube)
[[BR]]
[[BR]]
[[BR]]
Replying to [comment:6 cehoyos]:
> To make this a valid ticket, please provide the command line you tested
together with the complete, uncut console output (as you did in the first
tickets you opened on this bug tracker).
>
> Please attach an audio file that allows to reproduce.
Alright...
{{{
C:\>ffmpeg -loop 1 -i "random.png" -i "1.webm" -c:a copy -r 15 -vframes
3548 "1.mkv"
ffmpeg version git-2020-01-02-81172b5 Copyright (c) 2000-2020 the FFmpeg
developers
built with gcc 9.2.1 (GCC) 20191125
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-
libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr
--enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack
--enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2
--enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-
libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
--enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
--enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc
--enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
--enable-amf
libavutil 56. 38.100 / 56. 38.100
libavcodec 58. 65.102 / 58. 65.102
libavformat 58. 35.101 / 58. 35.101
libavdevice 58. 9.102 / 58. 9.102
libavfilter 7. 70.101 / 7. 70.101
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Input #0, png_pipe, from 'random.png':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: png, rgb24(pc), 2x2 [SAR 2835:2835 DAR 1:1], 25
fps, 25 tbr, 25 tbn, 25 tbc
Input #1, matroska,webm, from '1.webm':
Metadata:
encoder : google/video-file
Duration: 00:03:56.56, start: -0.007000, bitrate: 57 kb/s
Stream #1:0(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
Stream mapping:
Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
Stream #1:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
[libx264 @ 0000000000593f80] using SAR=1/1
[libx264 @ 0000000000593f80] using cpu capabilities: MMX2 SSE2Fast SSSE3
SSE4.2 AVX
[libx264 @ 0000000000593f80] profile High 4:4:4 Predictive, level 1.0,
4:4:4, 8-bit
[libx264 @ 0000000000593f80] 264 - core 158 - H.264/MPEG-4 AVC codec -
Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1
ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1
psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1
cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=1
lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0
bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=15
scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, matroska, to '1.mkv':
Metadata:
encoder : Lavf58.35.101
Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv444p, 2x2
[SAR 1:1 DAR 1:1], q=-1--1, 15 fps, 1k tbn, 15 tbc
Metadata:
encoder : Lavc58.65.102 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
Stream #0:1(eng): Audio: opus ([255][255][255][255] / 0xFFFFFFFF),
48000 Hz, stereo, fltp (default)
frame= 3548 fps=0.0 q=27.0 Lsize= 1705kB time=00:03:56.33 bitrate=
59.1kbits/s dup=0 drop=2362 speed= 388x
video:49kB audio:1559kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 6.003599%
[libx264 @ 0000000000593f80] frame I:15 Avg QP: 4.20 size: 20
[libx264 @ 0000000000593f80] frame P:894 Avg QP: 7.09 size: 18
[libx264 @ 0000000000593f80] frame B:2639 Avg QP:11.33 size: 13
[libx264 @ 0000000000593f80] consecutive B-frames: 0.8% 0.0% 0.1% 99.1%
[libx264 @ 0000000000593f80] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 0000000000593f80] mb P I16..4: 0.0% 0.0% 0.0% P16..4:
0.0% 0.0% 0.0% 0.0% 0.0% skip:100.0%
[libx264 @ 0000000000593f80] mb B I16..4: 0.0% 0.0% 0.0% B16..8:
0.0% 0.0% 0.0% direct: 0.0% skip:100.0%
[libx264 @ 0000000000593f80] 8x8 transform intra:0.0%
[libx264 @ 0000000000593f80] coded y,u,v intra: 0.0% 0.0% 0.0% inter: 0.0%
0.0% 0.0%
[libx264 @ 0000000000593f80] i16 v,h,dc,p: 0% 0% 100% 0%
[libx264 @ 0000000000593f80] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0000000000593f80] kb/s:1.68
C:\>ffprobe "1.mkv"
ffprobe version git-2020-01-02-81172b5 Copyright (c) 2007-2020 the FFmpeg
developers
built with gcc 9.2.1 (GCC) 20191125
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-
libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr
--enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack
--enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2
--enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-
libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
--enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
--enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc
--enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
--enable-amf
libavutil 56. 38.100 / 56. 38.100
libavcodec 58. 65.102 / 58. 65.102
libavformat 58. 35.101 / 58. 35.101
libavdevice 58. 9.102 / 58. 9.102
libavfilter 7. 70.101 / 7. 70.101
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Input #0, matroska,webm, from '1.mkv':
Metadata:
ENCODER : Lavf58.35.101
Duration: 00:03:56.53, start: -0.007000, bitrate: 59 kb/s
Stream #0:0: Video: h264 (High 4:4:4 Predictive),
yuv444p(progressive), 2x2 [SAR 1:1 DAR 1:1], 15 fps, 15 tbr, 1k tbn, 30
tbc
Metadata:
ENCODER : Lavc58.65.102 libx264
DURATION : 00:03:56.534000000
Stream #0:1(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
Metadata:
DURATION : 00:03:53.561000000
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8106#comment:7>
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