[FFmpeg-user] streaming mp3 to Icecast server: av_interleaved_write_frame(): Broken pipe
Micael Silva
micaelsilva at gmail.com
Wed Jun 12 02:15:43 EEST 2019
On Tue, Jun 11, 2019 at 6:18 PM PATRICK KEROULAS <
patrick.keroulas at radio-canada.ca> wrote:
> Hello,
>
> Our CDN provides icecast endpoints for mp3 streaming. As they recommended,
> I used '-legacy_icecast 1' to be compatible with old Icecast version
> which uses the SOURCE method instead of PUT.
>
> Transcoding to a file works fine but there is something wrong with
> the endpoint at the http/authentication level. From the error
> 'av_interleaved_write_frame(): Broken pipe', I'm not able to determine
> whether the client or the server is responsible for that.
> Can anyone help? Thanks.
>
> Regards,
>
> Patrick
>
> $ ffmpeg -loglevel debug -i udp://239.255.165.121:4001 -codec:a libmp3lame
> -legacy_icecast 1 -vn -f mp3 icecast://[user]:[pwd]@
> mp3push.ord.llnw.net:79/stream/cbcmp3_mp3live
> ffmpeg version 2.8.15 Copyright (c) 2000-2018 the FFmpeg developers
> built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-28)
> configuration: --prefix=/usr --bindir=/usr/bin
> --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg
> --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2
> -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
> -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches
> -m64 -mtune=generic' --extra-ldflags='-Wl,-z,relro '
> --enable-libopencore-amrnb --enable-libopencore-amrwb
> --enable-libvo-amrwbenc --enable-version3 --enable-bzlib
> --disable-crystalhd --enable-gnutls --enable-ladspa --enable-libass
> --enable-libcdio --enable-libdc1394 --disable-indev=jack
> --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal
> --enable-libopenjpeg --enable-libopus --enable-libpulse
> --enable-libschroedinger --enable-libsoxr --enable-libspeex
> --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libx264
> --enable-libx265 --enable-libxvid --enable-x11grab --enable-avfilter
> --enable-avresample --enable-postproc --enable-pthreads --disable-static
> --enable-shared --enable-gpl --disable-debug --disable-stripping
> --shlibdir=/usr/lib64 --enable-runtime-cpudetect
> 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
> libavresample 2. 1. 0 / 2. 1. 0
> libswscale 3. 1.101 / 3. 1.101
> libswresample 1. 2.101 / 1. 2.101
> libpostproc 53. 3.100 / 53. 3.100
> Splitting the commandline.
> Reading option '-loglevel' ... matched as option 'loglevel' (set logging
> level) with argument 'debug'.
> Reading option '-i' ... matched as input url with argument 'udp://
> 239.255.165.121:4001'.
> Reading option '-codec:a' ... matched as option 'codec' (codec name) with
> argument 'libmp3lame'.
> Reading option '-legacy_icecast' ... matched as AVOption 'legacy_icecast'
> with argument '1'.
> Reading option '-vn' ... matched as option 'vn' (disable video) with
> argument '1'.
> Reading option '-f' ... matched as option 'f' (force format) with argument
> 'mp3'.
> Reading option 'icecast://[user]:[pwd]@
> mp3push.ord.llnw.net:79/stream/cbcmp3_mp3live' ... matched as output url.
> Finished splitting the commandline.
> Parsing a group of options: global .
> Applying option loglevel (set logging level) with argument debug.
> Successfully parsed a group of options.
> Parsing a group of options: input url udp://239.255.165.121:4001.
> Successfully parsed a group of options.
> Opening an input file: udp://239.255.165.121:4001.
> [udp @ 0x24ce420] end receive buffer size reported is 131072
> [mpegts @ 0x24cdc00] Format mpegts probed with size=2048 and score=100
> [mpegts @ 0x24cdc00] stream=0 stream_type=11 pid=702 prog_reg_desc=
> [mpegts @ 0x24cdc00] Before avformat_find_stream_info() pos: 0 bytes
> read:35532 seeks:0
> [mpegts @ 0x24cdc00] parser not found for codec none, packets or times may
> be invalid.
> [mpegts @ 0x24cdc00] probing stream 0 pp:2500
> [mpegts @ 0x24cdc00] Probe with size=1871, packets=1 detected loas with
> score=51
> [mpegts @ 0x24cdc00] probed stream 0
> [aac_latm @ 0x24f2640] initializing latmctx
> [mpegts @ 0x24cdc00] max_analyze_duration 5000000 reached at 5013333
> microseconds st:0
> [mpegts @ 0x24cdc00] After avformat_find_stream_info() pos: 656872 bytes
> read:658000 seeks:0 frames:241
> Input #0, mpegts, from 'udp://239.255.165.121:4001':
> Duration: N/A, start: 31155.983311, bitrate: N/A
> Program 1792
> Metadata:
> service_name : 7EMCT0
> service_provider: CBC / RADIO-CANADA
> Stream #0:0[0x702](FRE), 241, 1/90000: Audio: aac_latm (LC)
> ([17][0][0][0] / 0x0011), 48000 Hz, stereo, fltp
> Successfully opened the file.
> Parsing a group of options: output url icecast://[user]:[pwd]@
> mp3push.ord.llnw.net:79/stream/cbcmp3_mp3live.
> Applying option codec:a (codec name) with argument libmp3lame.
> Applying option vn (disable video) with argument 1.
> Applying option f (force format) with argument mp3.
> Successfully parsed a group of options.
> Opening an output file: icecast://[user]:[pwd]@
> mp3push.ord.llnw.net:79/stream/cbcmp3_mp3live.
> [http @ 0x24e18e0] request: SOURCE /stream/cbcmp3_mp3live HTTP/1.1
> User-Agent: Lavf/56.40.101
> Accept: */*
> Connection: close
> Host: mp3push.ord.llnw.net:79
> Content-Type: audio/mpeg
> Icy-MetaData: 1
> Ice-Public: 0
> Authorization: Basic c291cmNlOkZueXZQNHQ2Slg=
>
>
> Successfully opened the file.
> detected 1 logical cores
> [graph 0 input from stream 0:0 @ 0x24cdae0] Setting 'time_base' to value
> '1/48000'
> [graph 0 input from stream 0:0 @ 0x24cdae0] Setting 'sample_rate' to value
> '48000'
> [graph 0 input from stream 0:0 @ 0x24cdae0] Setting 'sample_fmt' to value
> 'fltp'
> [graph 0 input from stream 0:0 @ 0x24cdae0] Setting 'channel_layout' to
> value '0x3'
> [graph 0 input from stream 0:0 @ 0x24cdae0] tb:1/48000 samplefmt:fltp
> samplerate:48000 chlayout:0x3
> [audio format for output stream 0:0 @ 0x24e43a0] Setting 'sample_fmts' to
> value 's32p|fltp|s16p'
> [audio format for output stream 0:0 @ 0x24e43a0] Setting 'sample_rates' to
> value '44100|48000|32000|22050|24000|16000|11025|12000|8000'
> [audio format for output stream 0:0 @ 0x24e43a0] Setting 'channel_layouts'
> to value '0x4|0x3'
> [AVFilterGraph @ 0x24fc980] query_formats: 4 queried, 9 merged, 0 already
> done, 0 delayed
> [icecast @ 0x2535cc0] It seems you are streaming an unsupported format.
> [icecast @ 0x2535cc0] It might work, but is not officially supported in
> Icecast!
> Output #0, mp3, to 'icecast://[user]:[pwd]@
> mp3push.ord.llnw.net:79/stream/cbcmp3_mp3live':
> Metadata:
> TSSE : Lavf56.40.101
> Stream #0:0(FRE), 0, 1/48000: Audio: mp3 (libmp3lame), 48000 Hz,
> stereo, fltp
> Metadata:
> encoder : Lavc56.60.100 libmp3lame
> Stream mapping:
> Stream #0:0 -> #0:0 (aac_latm (native) -> mp3 (libmp3lame))
> Press [q] to stop, [?] for help
> av_interleaved_write_frame(): Broken pipe
> No more output streams to write to, finishing.
> [libmp3lame @ 0x24fe4a0] Trying to remove 47 more samples than there are in
> the queue
> size= 8kB time=00:00:00.50 bitrate= 134.5kbits/s
> video:0kB audio:8kB subtitle:0kB other streams:0kB global headers:0kB
> muxing overhead: 0.532670%
> Input file #0 (udp://239.255.165.121:4001):
> Input stream #0:0 (audio): 27 packets read (9132 bytes); 27 frames
> decoded (27648 samples);
> Total: 27 packets (9132 bytes) demuxed
> Output file #0 (icecast://[user]:[pwd]@
> mp3push.ord.llnw.net:79/stream/cbcmp3_mp3live):
> Output stream #0:0 (audio): 24 frames encoded (27648 samples); 22 packets
> muxed (8448 bytes);
> Total: 22 packets (8448 bytes) muxed
> 27 frames successfully decoded, 0 decoding errors
> [AVIOContext @ 0x24e3380] Statistics: 0 seeks, 23 writeouts
> [AVIOContext @ 0x24eea40] Statistics: 658000 bytes read, 0 seeks
> Conversion failed!
> _______________________________________________
>
Using Wireshark monitoring the traffic the connections seams to be ok on
Icecast 1 protocol, using SOURCE method and such. I saw that your ffmpeg
version is quite old, updating can solve any bug that can be messing out
your usage
I've tried adding " -content_type 'audio/mpeg' -ice_name 'CBC'
-ice_description 'CBC' " to make the Icecast request more complete, I don't
know if they are mandatory to Limelight but they get rid of "It seems you
are streaming an unsupported format." warnings on the ffmpeg log
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