Segmentation fault using gather module

[Tesla]

Hello. trying to manage streaming several files uninterrupted. i'm using vlc 0.8.6c on Kubuntu Hardy 8.04
streaming with this command:

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vlc -vvvv *.avi --sout '#gather:standard{access=mmsh,mux=asfh,dst=127.0.0.1:8080}' --sout-keep

as soon as it reaches the end of a first file it's last messages are:

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[00000342] main input debug: stream out mode -> no decoder thread [00000342] main input debug: starting in sync mode [00000342] main input debug: meta information: [00000342] main input debug: - 'Setting' = ' HAS_INDEX IS_INTERLEAVED TRUST_CKTYPE' [00000342] main input debug: `movie2.avi' successfully opened [00000346] avi demuxer debug: old:0 < new 0 [00000348] mpeg_audio packetizer debug: MPGA channels:2 samplerate:22050 bitrate:64 [00000292] main stream output debug: adding a new input [00000293] stream_out_gather private debug: reusing already opened output ./tv.sh: line 1: 11242 Segmentation fault (core dumped) vlc -vvvv *.avi --sout '#gather:standard{access=mmsh,mux=asfh,dst=127.0.0.1:8080}' --sout-keep

the files i stream are already transcoded and have the same a/v codecs, resolution and bitrate. the reason why i dont use vlc's transcoding capabilities is that i decided to exclude possible transcoder crashes and isolate the problem. i still get the segfault with vlc's transcoding. to be specific here is how i get videos i'm trying to stream

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mencoder $1 -vf scale=320:240 -o movie.avi -ovc xvid -xvidencopts bitrate=128 -oac mp3lame -lameopts cbr:br=64

this segmentation bug is reprodusable on another hardware and vlc 0.8.6 on Kubuntu 7.04

Please help me solving this issue.

Feel free to ask for more debug information

[pfoff]

I was trying with that:

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vlc -vvv --intf dummy --sout-all --sout-keep --sout "#gather:duplicate{dst=std{access=mmsh,caching=300,mux=ts,dst=:1236}}" list4.m3u

Result:

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[00000330] main input debug: keeping sout [00000330] main input debug: thread 3037805456 joined (input/input.c:412) [00000281] main playlist debug: creating new input thread [00000354] main input debug: waiting for thread completion [00000354] main input debug: thread 3037805456 (input) created at priority 0 (input/input.c:265) [00000354] main input debug: sout keep: reusing sout [00000354] main input debug: sout keep: you probably want to use gather stream_out [00000354] main input debug: `mpeg/mov02d.mod.mpeg.mp4' gives access `' demux `' path `mpeg/mov02d.mod.mpeg.mp4' [00000354] main input debug: creating demux: access='' demux='' path='mpeg/mov02d.mod.mpeg.mp4' [00000355] main demuxer debug: looking for access_demux module: 2 candidates [00000354] main input debug: creating access '' path='mpeg/mov02d.mod.mpeg.mp4' [00000356] main access debug: looking for access2 module: 5 candidates [00000356] vcd access debug: trying .cue file: mpeg/mov02d.mod.mpeg.cue [00000356] vcd access debug: could not find .cue file [00000356] access_file access debug: opening file `mpeg/mov02d.mod.mpeg.mp4' [00000356] main access debug: using access2 module "access_file" [00000357] main private debug: pre-buffering... [00000357] main private debug: received first data for our buffer [00000357] main private debug: pre-buffering done 1408981 bytes in 0s - 489664 kbytes/s [00000354] main input debug: creating demux: access='' demux='' path='mpeg/mov02d.mod.mpeg.mp4' [00000358] main demuxer debug: looking for demux2 module: 45 candidates [00000357] mp4 private debug: found Box: ftyp size 20 [00000357] mp4 private debug: found Box: free size 8 [00000357] mp4 private debug: skip box: "free" [00000357] mp4 private debug: found Box: mdat size 7339399 [00000357] mp4 private debug: skip box: "mdat" [00000357] mp4 private debug: found Box: moov size 11321 [00000357] mp4 private debug: found Box: mvhd size 108 [00000357] mp4 private debug: read box: "mvhd" creation 719084d-36h:00m:00s modification 719084d-36h:00m:00s time scale 1000 duration 694977d-48h:00m:00s rate 1.000000 volume 1.000000 next track id 3 [00000357] mp4 private debug: found Box: trak size 4213 [00000357] mp4 private debug: found Box: tkhd size 92 [00000357] mp4 private debug: read box: "tkhd" creation 719084d-36h:00m:00s modification 719084d-36h:00m:00s duration 883549365d-14h:56m:00s track ID 1 layer 0 volume 0.000000 width 1023.999985 height 576.000000 [00000357] mp4 private debug: found Box: mdia size 4113 [00000357] mp4 private debug: found Box: mdhd size 32 [00000357] mp4 private debug: read box: "mdhd" creation 719084d-36h:00m:00s modification 719084d-36h:00m:00s time scale 25 duration 694977d-48h:07m:24s language und [00000357] mp4 private debug: found Box: hdlr size 45 [00000357] mp4 private debug: read box: "hdlr" handler type vide name VideoHandler [00000357] mp4 private debug: found Box: minf size 4028 [00000357] mp4 private debug: found Box: vmhd size 20 [00000357] mp4 private debug: read box: "vmhd" graphics-mode 0 opcolor (0, 0, 0) [00000357] mp4 private debug: found Box: dinf size 36 [00000357] mp4 private debug: found Box: dref size 28 [00000357] mp4 private debug: found Box: url size 12 [00000357] mp4 private debug: read box: "url" url: (null) [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: read box: "dref" entry-count 1 [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: found Box: stbl size 3964 [00000357] mp4 private debug: found Box: stsd size 152 [00000357] mp4 private debug: found Box: avc1 size 136 [00000357] mp4 private debug: found Box: avcC size 50 [00000357] mp4 private debug: read box: "avcC" version=1 profile=0x42 level=0x33 length size=4 sps=1 pps=1 [00000357] mp4 private debug: - sps[0] length=27 [00000357] mp4 private debug: - pps[0] length=4 [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: read box: "vide" in stsd 720x576 depth 24 [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: read box: "stsd" entry-count 1 [00000357] mp4 private debug: found Box: stts size 24 [00000357] mp4 private debug: read box: "stts" entry-count 1 [00000357] mp4 private debug: found Box: stss size 164 [00000357] mp4 private debug: read box: "stss" entry-count 37 [00000357] mp4 private debug: found Box: stsc size 28 [00000357] mp4 private debug: read box: "stsc" entry-count 1 [00000357] mp4 private debug: found Box: stsz size 1796 [00000357] mp4 private debug: read box: "stsz" sample-size 0 sample-count 444 [00000357] mp4 private debug: found Box: stco size 1792 [00000357] mp4 private debug: read box: "co64" entry-count 444 [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: found Box: trak size 6984 [00000357] mp4 private debug: found Box: tkhd size 92 [00000357] mp4 private debug: read box: "tkhd" creation 719084d-36h:00m:00s modification 719084d-36h:00m:00s duration 869232807d-11h:15m:12s track ID 2 layer 0 volume 1.000000 width 0.000000 height 0.000000 [00000357] mp4 private debug: found Box: mdia size 6884 [00000357] mp4 private debug: found Box: mdhd size 32 [00000357] mp4 private debug: read box: "mdhd" creation 719084d-36h:00m:00s modification 719084d-36h:00m:00s time scale 48000 duration 694986d-40h:57m:36s language und [00000357] mp4 private debug: found Box: hdlr size 45 [00000357] mp4 private debug: read box: "hdlr" handler type soun name SoundHandler [00000357] mp4 private debug: found Box: minf size 6799 [00000357] mp4 private debug: found Box: smhd size 16 [00000357] mp4 private debug: read box: "smhd" balance 0.000000 [00000357] mp4 private debug: found Box: dinf size 36 [00000357] mp4 private debug: found Box: dref size 28 [00000357] mp4 private debug: found Box: url size 12 [00000357] mp4 private debug: read box: "url" url: (null) [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: read box: "dref" entry-count 1 [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: found Box: stbl size 6739 [00000357] mp4 private debug: found Box: stsd size 91 [00000357] mp4 private debug: found Box: mp4a size 75 [00000357] mp4 private debug: read box: "soun" mp4 or qt1/2 (rest=39) [00000357] mp4 private debug: found Box: esds size 39 [00000357] mp4 private debug: found esds MPEG4ESDescr (25Bytes) [00000357] mp4 private debug: found esds MP4DecConfigDescr (17Bytes) [00000357] mp4 private debug: found esds MP4DecSpecificDescr (2Bytes) [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: read box: "soun" in stsd channel 2 sample size 16 sample rate 48000.000000 [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: read box: "stsd" entry-count 1 [00000357] mp4 private debug: found Box: stts size 24 [00000357] mp4 private debug: read box: "stts" entry-count 1 [00000357] mp4 private debug: found Box: stsc size 28 [00000357] mp4 private debug: read box: "stsc" entry-count 1 [00000357] mp4 private debug: found Box: stsz size 3296 [00000357] mp4 private debug: read box: "stsz" sample-size 0 sample-count 819 [00000357] mp4 private debug: found Box: stco size 3292 [00000357] mp4 private debug: read box: "co64" entry-count 819 [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: found Box: udta size 8 [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: out of bound child [00000357] mp4 private debug: dumping root Box "root" [00000357] mp4 private debug: | + ftyp size 20 [00000357] mp4 private debug: | + free size 8 [00000357] mp4 private debug: | + mdat size 7339399 [00000357] mp4 private debug: | + moov size 11321 [00000357] mp4 private debug: | | + mvhd size 108 [00000357] mp4 private debug: | | + trak size 4213 [00000357] mp4 private debug: | | | + tkhd size 92 [00000357] mp4 private debug: | | | + mdia size 4113 [00000357] mp4 private debug: | | | | + mdhd size 32 [00000357] mp4 private debug: | | | | + hdlr size 45 [00000357] mp4 private debug: | | | | + minf size 4028 [00000357] mp4 private debug: | | | | | + vmhd size 20 [00000357] mp4 private debug: | | | | | + dinf size 36 [00000357] mp4 private debug: | | | | | | + dref size 28 [00000357] mp4 private debug: | | | | | | | + url size 12 [00000357] mp4 private debug: | | | | | + stbl size 3964 [00000357] mp4 private debug: | | | | | | + stsd size 152 [00000357] mp4 private debug: | | | | | | | + avc1 size 136 [00000357] mp4 private debug: | | | | | | | | + avcC size 50 [00000357] mp4 private debug: | | | | | | + stts size 24 [00000357] mp4 private debug: | | | | | | + stss size 164 [00000357] mp4 private debug: | | | | | | + stsc size 28 [00000357] mp4 private debug: | | | | | | + stsz size 1796 [00000357] mp4 private debug: | | | | | | + stco size 1792 [00000357] mp4 private debug: | | + trak size 6984 [00000357] mp4 private debug: | | | + tkhd size 92 [00000357] mp4 private debug: | | | + mdia size 6884 [00000357] mp4 private debug: | | | | + mdhd size 32 [00000357] mp4 private debug: | | | | + hdlr size 45 [00000357] mp4 private debug: | | | | + minf size 6799 [00000357] mp4 private debug: | | | | | + smhd size 16 [00000357] mp4 private debug: | | | | | + dinf size 36 [00000357] mp4 private debug: | | | | | | + dref size 28 [00000357] mp4 private debug: | | | | | | | + url size 12 [00000357] mp4 private debug: | | | | | + stbl size 6739 [00000357] mp4 private debug: | | | | | | + stsd size 91 [00000357] mp4 private debug: | | | | | | | + mp4a size 75 [00000357] mp4 private debug: | | | | | | | | + esds size 39 [00000357] mp4 private debug: | | | | | | + stts size 24 [00000357] mp4 private debug: | | | | | | + stsc size 28 [00000357] mp4 private debug: | | | | | | + stsz size 3296 [00000357] mp4 private debug: | | | | | | + stco size 3292 [00000357] mp4 private debug: | | + udta size 8 [00000358] mp4 demuxer debug: ISO Media file (isom) version 512. [00000358] mp4 demuxer debug: find 2 tracks [00000358] mp4 demuxer debug: track[Id 0x1] read 444 chunk [00000358] mp4 demuxer debug: track[Id 0x1] read 444 samples length:17s [00000354] main input debug: selecting program id=0 [00000358] mp4 demuxer debug: adding track[Id 0x1] video (enable) language undef [00000358] mp4 demuxer debug: track[Id 0x2] read 819 chunk [00000358] mp4 demuxer debug: track[Id 0x2] read 819 samples length:17s [00000358] mp4 demuxer debug: adding track[Id 0x2] audio (enable) language undef [00000358] main demuxer debug: using demux2 module "mp4" [00000358] mp4 demuxer warning: DEMUX_GET_FPS unimplemented !! [00000354] main input debug: looking for a subtitle file in mpeg/ [00000359] main packetizer debug: looking for packetizer module: 17 candidates [00000359] packetizer_h264 packetizer debug: found NAL_SPS [00000359] packetizer_h264 packetizer debug: found NAL_PPS [00000359] packetizer_h264 packetizer debug: avcC length size=4, sps=1, pps=1 [00000359] main packetizer debug: using packetizer module "packetizer_h264" [00000354] main input debug: stream out mode -> no decoder thread [00000360] main packetizer debug: looking for packetizer module: 17 candidates [00000360] packetizer_mpeg4audio packetizer debug: running MPEG4 audio packetizer [00000360] packetizer_mpeg4audio packetizer debug: AAC 48000Hz 1024 samples/frame [00000360] main packetizer debug: using packetizer module "packetizer_mpeg4audio" [00000354] main input debug: stream out mode -> no decoder thread [00000354] main input debug: starting in sync mode [00000354] main input debug: `mpeg/mov02d.mod.mpeg.mp4' successfully opened [00000358] mp4 demuxer debug: track[Id 0x1] using Sync Sample Box (stss) [00000358] mp4 demuxer debug: stts gives 0 --> 0 (sample number) [00000358] mp4 demuxer debug: track[Id 0x2] does not provide Sync Sample Box (stss) [00000298] main stream output debug: adding a new input [00000299] stream_out_gather private debug: reusing already opened output Segmentation fault (core dumped)

CRASH.... Also with your command line.
Did anybody find a solution for that? Is there another way to stream h264 to windows(quicktime-plugin,rtp?). Or do some codecpacks support mplayer with h264 over http/rtp? And that's the solution?
Caused me some headache, yet.

Post scriptum:
I found that bug #1032 (http://trac.videolan.org/vlc/ticket/1032). No idea, why it is closed as unreproducable, I can reproduce it on any box, i could get my hands on(Suse,debian,ubuntu....) and with any playlist, that contains mpeg files, ever when the next file is about to start, it crashes.
Are the vlc guys reading this?

[dionoea]

What VLC version are you using?

[pfoff]

on feisty:
VLC version 0.8.6c Janus
on hardy:
VLC-Version 0.8.6e Janus

on SuSE:
VLC version 0.8.6e Janus
and:
VLC-Version 0.8.6c Janus

All have the same problems, when I try to stream h264/m4a via mmsh/asfh. Does this answer your questions?)

[dionoea]

Would you be able to test a nightly build from http://nightlies.videolan.org ? (those require Debian Sid or Ubuntu Intrepid ... I don't know if the Suse nightlies are recent)

[pfoff]

No matter, I'd do that on the testsystem. Is there a way to install it into a user specified directory(link?)?
The Suse we are talking about is still at 10.0...
I would like to see it working on my debian/ubuntu test environment.
Thanks for your quick responses!

[dionoea]

Well on ubuntu you can just install the nightly and remove it when you're done testing. I don't know if apt/dpkg allow selecting a different install folder.

[pfoff]

No time yet, to try the nightly builds however I found out, that it does not crash, when I transcode on the fly, instead of just streaming prepared files.
Successfull sout:
"#gather:transcode{vcodec=DIV3,vb=1200,acodec=mp3,ab=128,channels=2,audio-sync}:duplicate{dst=std{access=mmsh,mux=asf,url=:9211}}"
But now another problem arises. VLC does not report connect requests anymore, so I can't tell from the log files, how much users connected to the stream.
I have added -vvv to the command line, but at no success....
Anyone knows about that!?!?

[isync]

Got the same segfault with 0.8.6.a Janus on Debian, while streaming a .asf-only playlist with #gather:std... and --sout-keep

Any progress/solution on this thread/topic?

[Rémi Denis-Courmont]

You're unlikely to get help with as antique as 0.8.6a a version.