[FFmpeg-trac] #4145(undetermined:new): when rebroadcasting/streaming to flv format with aac_adtstoasc bitstream filter, sound gets removed
FFmpeg
trac at avcodec.org
Mon Dec 1 00:29:53 CET 2014
#4145: when rebroadcasting/streaming to flv format with aac_adtstoasc bitstream
filter, sound gets removed
-------------------------------------+-------------------------------------
Reporter: PyroDevil | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
I tried to rebroadcast a twitch stream on another channel with
livestreamer and ffmpeg, but the sound went missing on the second stream.
How to reproduce:
I started the stream like this:
{{{
% livestreamer -O www.twitch.tv/otherstream worst 2>/dev/null | ffmpeg -i
- -c copy -bsf:a aac_adtstoasc -f flv
"rtmp://live.twitch.tv/app/live_xxxxxxxx_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
ffmpeg version 2.4.3 Copyright (c) 2000-2014 the FFmpeg developers
built on Nov 2 2014 09:16:45 with gcc 4.9.1 (GCC) 20140903 (prerelease)
configuration: --prefix=/usr --disable-debug --disable-static --disable-
stripping --enable-avisynth --enable-avresample --enable-fontconfig
--enable-gnutls --enable-gpl --enable-libass --enable-libbluray --enable-
libfreetype --enable-libfribidi --enable-libgsm --enable-libmodplug
--enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb
--enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp
--enable-libschroedinger --enable-libspeex --enable-libtheora --enable-
libv4l2 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-
libx265 --enable-libxvid --enable-runtime-cpudetect --enable-shared
--enable-swresample --enable-vdpau --enable-version3 --enable-x11grab
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, mpegts, from 'pipe:':
Duration: N/A, start: 81647.996000, bitrate: 128 kb/s
Program 1
Stream #0:0[0x100]: Audio: aac ([15][0][0][0] / 0x000F), 44100 Hz,
stereo, fltp, 128 kb/s
Stream #0:1[0x101]: Video: h264 (Constrained Baseline) ([27][0][0][0]
/ 0x001B), yuv420p, 400x226, 20 fps, 20 tbr, 90k tbn, 2k tbc
Stream #0:2[0x102]: Data: timed_id3 (ID3 / 0x20334449)
Output #0, flv, to
'rtmp://live.twitch.tv/app/live_xxxxxxxx_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx':
Metadata:
encoder : Lavf56.4.101
Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv420p, 400x226,
q=2-31, 20 fps, 1k tbn, 90k tbc
Stream #0:1: Audio: aac ([10][0][0][0] / 0x000A), 44100 Hz, stereo,
128 kb/s
Stream mapping:
Stream #0:1 -> #0:0 (copy)
Stream #0:0 -> #0:1 (copy)
frame= 118 fps=0.0 q=-1.0 size= 143kB time=00:00:06.01 bitrate=
195.1kbits/s
frame= 119 fps= 60 q=-1.0 size= 144kB time=00:00:06.04 bitrate=
195.7kbits/s
frame= 197 fps= 38 q=-1.0 size= 245kB time=00:00:09.94 bitrate=
202.2kbits/s
frame= 279 fps= 33 q=-1.0 size= 349kB time=00:00:14.03 bitrate=
203.7kbits/s
frame= 316 fps= 27 q=-1.0 size= 387kB time=00:00:15.93 bitrate=
198.9kbits/s
frame= 397 fps= 26 q=-1.0 size= 482kB time=00:00:19.99 bitrate=
197.5kbits/s
frame= 479 fps= 27 q=-1.0 size= 577kB time=00:00:24.03 bitrate=
196.7kbits/s
frame= 519 fps= 25 q=-1.0 size= 629kB time=00:00:26.03 bitrate=
198.1kbits/s
frame= 598 fps= 24 q=-1.0 size= 727kB time=00:00:30.02 bitrate=
198.3kbits/s
frame= 677 fps= 24 q=-1.0 size= 824kB time=00:00:33.97 bitrate=
198.8kbits/s
frame= 718 fps= 23 q=-1.0 size= 870kB time=00:00:35.99 bitrate=
197.9kbits/s
[flv @ 0x1297c80] Failed to update header with correct duration.
[flv @ 0x1297c80] Failed to update header with correct filesize.
frame= 755 fps= 22 q=-1.0 Lsize= 918kB time=00:00:37.90 bitrate=
198.4kbits/s
video:282kB audio:592kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 4.998726%
Received signal 2: terminating.
}}}
And this is the came out of the other stream:
{{{
% livestreamer -O www.twitch.tv/mystream worst 2> /dev/null | ffmpeg -i -
ffmpeg version 2.4.3 Copyright (c) 2000-2014 the FFmpeg developers
built on Nov 2 2014 09:16:45 with gcc 4.9.1 (GCC) 20140903 (prerelease)
configuration: --prefix=/usr --disable-debug --disable-static --disable-
stripping --enable-avisynth --enable-avresample --enable-fontconfig
--enable-gnutls --enable-gpl --enable-libass --enable-libbluray --enable-
libfreetype --enable-libfribidi --enable-libgsm --enable-libmodplug
--enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb
--enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp
--enable-libschroedinger --enable-libspeex --enable-libtheora --enable-
libv4l2 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-
libx265 --enable-libxvid --enable-runtime-cpudetect --enable-shared
--enable-swresample --enable-vdpau --enable-version3 --enable-x11grab
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, mpegts, from 'pipe:':
Duration: N/A, start: 138.000000, bitrate: N/A
Program 1
Stream #0:0[0x101]: Video: h264 (Constrained Baseline) ([27][0][0][0]
/ 0x001B), yuv420p, 400x226, 20 fps, 20 tbr, 90k tbn, 2k tbc
Stream #0:1[0x102]: Data: timed_id3 (ID3 / 0x20334449)
At least one output file must be specified
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4145>
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