Opened 9 years ago
Last modified 8 years ago
#5067 open defect
crash on Mapping Multicast TV Stream to HLS with "Exactly one WebVTT stream is needed" as message
| Reported by: | cloudclimber | Owned by: | |
|---|---|---|---|
| Priority: | important | Component: | avformat |
| Version: | git-master | Keywords: | webvtt hls crash SIGSEGV regression |
| Cc: | Anshul, Michael Niedermayer | Blocked By: | |
| Blocking: | Reproduced by developer: | yes | |
| Analyzed by developer: | no |
Description
Summary of the bug:
i want to map a multicast TV Stream as is to HLS.
Till ffmpeg 2.7.2 there was no Problem with the command line.
With ffmpeg 2.8.0 till now with ffmpeg 2.8.3 ffmpeg says now "Exactly one WebVTT stream is needed" and crashes.
The debug Output comes from ffmpeg 2.8.2, but with ffmpeg 2.8.3 it's the same Problem.
As should be:
The command line should run without Problems, even without WebVTT streams, and should map all subtitles as is.
How to reproduce:
root@ffmpegserver:~/ffmpeg-2.8.2-64bit-static# ./ffmpeg -i udp://@239.100.1.1:1234 -map 0 -probesize 100 -analyzeduration 100 -c copy -copy_unknown -f hls -hls_time 10 -hls_wrap 10 -hls_list_size 10 /var/www/test1_.m3u8 -loglevel debug ffmpeg version 2.8.2-static http://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2015 the FFmpeg developers built with gcc 5.2.1 (Debian 5.2.1-23) 20151028 configuration: --enable-gpl --enable-version3 --disable-shared --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --enable-libass --enable-gnutls --enable-libvidstab --enable-libsoxr --enable-frei0r --enable-libfribidi --disable-indev=sndio --disable-outdev=sndio --cc=gcc 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 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 '-i' ... matched as input file with argument 'udp://@239.100.1.1:1234'. Reading option '-map' ... matched as option 'map' (set input stream mapping) with argument '0'. Reading option '-probesize' ... matched as AVOption 'probesize' with argument '100'. Reading option '-analyzeduration' ... matched as AVOption 'analyzeduration' with argument '100'. Reading option '-c' ... matched as option 'c' (codec name) with argument 'copy'. Reading option '-copy_unknown' ... matched as option 'copy_unknown' (Copy unknown stream types) with argument '1'. Reading option '-f' ... matched as option 'f' (force format) with argument 'hls'. Reading option '-hls_time' ... matched as AVOption 'hls_time' with argument '10'. Reading option '-hls_wrap' ... matched as AVOption 'hls_wrap' with argument '10'. Reading option '-hls_list_size' ... matched as AVOption 'hls_list_size' with argument '10'. Reading option '/var/www/test1_.m3u8' ... matched as output file. Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'. Finished splitting the commandline. Parsing a group of options: global . Applying option copy_unknown (Copy unknown stream types) with argument 1. Applying option loglevel (set logging level) with argument debug. Successfully parsed a group of options. Parsing a group of options: input file udp://@239.100.1.1:1234. Successfully parsed a group of options. Opening an input file: udp://@239.100.1.1:1234. [udp @ 0x3c048c0] end receive buffer size reported is 131072 [mpegts @ 0x3c04080] Format mpegts probed with size=2048 and score=100 [mpegts @ 0x3c04080] stream=0 stream_type=3 pid=90 prog_reg_desc= [mpegts @ 0x3c04080] stream=1 stream_type=6 pid=92 prog_reg_desc= [mpegts @ 0x3c04080] stream=2 stream_type=2 pid=a8 prog_reg_desc= [mpegts @ 0x3c04080] stream=3 stream_type=5 pid=585 prog_reg_desc= [mpegts @ 0x3c04080] Before avformat_find_stream_info() pos: 0 bytes read:215824 seeks:0 [mpegts @ 0x3c04080] parser not found for codec dvb_teletext, packets or times may be invalid. [mpegts @ 0x3c04080] parser not found for codec none, packets or times may be invalid. [mpegts @ 0x3c04080] parser not found for codec dvb_teletext, packets or times may be invalid. [mpeg2video @ 0x3c2a080] Invalid frame dimensions 0x0. Last message repeated 4 times [mpegts @ 0x3c04080] max_analyze_duration 5000000 reached at 5000000 microseconds st:2 [mpegts @ 0x3c04080] Could not find codec parameters for stream 3 (Unknown: none ([5][0][0][0] / 0x0005)): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpegts @ 0x3c04080] After avformat_find_stream_info() pos: 2948780 bytes read:2949156 seeks:0 frames:469 Input #0, mpegts, from 'udp://@239.100.1.1:1234': Duration: N/A, start: 85846.772444, bitrate: N/A Program 3394 Metadata: service_name : QVC PLUS service_provider: SES ASTRA Stream #0:0[0x90](ger), 208, 1/90000: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 128 kb/s Stream #0:1[0x92](ger), 131, 1/90000: Subtitle: dvb_teletext ([6][0][0][0] / 0x0006) Stream #0:2[0xa8], 130, 1/90000: Video: mpeg2video (Main), 1 reference frame ([2][0][0][0] / 0x0002), yuv420p(tv, left), 720x576 [SAR 64:45 DAR 16:9], 1/50, max. 15000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:3[0x585], 0, 1/90000: Unknown: none ([5][0][0][0] / 0x0005) Successfully opened the file. Parsing a group of options: output file /var/www/test1_.m3u8. Applying option map (set input stream mapping) with argument 0. Applying option c (codec name) with argument copy. Applying option f (force format) with argument hls. Successfully parsed a group of options. Opening an output file: /var/www/test1_.m3u8. Successfully opened the file. [webvtt @ 0x3fb80c0] Exactly one WebVTT stream is needed. [mpegts @ 0x3fb7ae0] muxrate VBR, pcr every 2 pkts, sdt every 200, pat/pmt every 40 pkts Segmentation fault (core dumped) root@ffmpegserver:~/ffmpeg-2.8.2-64bit-static#
Attachments (3)
Change History (16)
comment:1 by , 9 years ago
comment:3 by , 9 years ago
Please provide backtrace etc. as explained on https://ffmpeg.org/bugreports.html
comment:5 by , 9 years ago
The output is unfortunately useless because it contains no debug information.
Is the issue only reproducible with udp input or also with file input? To test, you have to dump the udp stream to a file, if you don't know how to do this, please try (one of) the three possibilities:
mplayer -dumpstreamffmpeg -f data -i udp://@239.100.1.1:1234 -map 0 -codec copy -f data out.ts- or use tools/aviocat but you would have to compile it and if you can compile, you can also provide a backtrace with debug information.
comment:6 by , 9 years ago
If the issue is reproducible with file input, please upload the file and I will provide the missing information.
comment:7 by , 9 years ago
i uploaded a Sample file.
For a better and longer Sample i have to upload it somewher else because it would exceed the 2,5MB Filesize Limit
comment:8 by , 9 years ago
| Component: | undetermined → avformat |
|---|---|
| Keywords: | crash SIGSEGV regression added |
| Reproduced by developer: | set |
| Status: | new → open |
| Version: | 2.8.3 → git-master |
Regression since 379ddc6a or b8423269 (depending on configure options)
(gdb) r -i sample.ts -c copy out.m3u8
Starting program: ffmpeg_g -i sample.ts -c copy out.m3u8
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
ffmpeg version N-77081-ga0a39ac Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 55. 10.100 / 55. 10.100
libavcodec 57. 16.101 / 57. 16.101
libavformat 57. 19.100 / 57. 19.100
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 20.100 / 6. 20.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
[NULL @ 0x1cda700] start time for stream 4 is not set in estimate_timings_from_pts
[NULL @ 0x1cdb280] start time for stream 5 is not set in estimate_timings_from_pts
Input #0, mpegts, from 'sample.ts':
Duration: 00:00:03.84, start: 72016.973667, bitrate: 4284 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv), 720x576 [SAR 64:45 DAR 16:9], max. 7700 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 192 kb/s
Stream #0:2[0x102]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 192 kb/s
Stream #0:3[0x103](und): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
Stream #0:4[0x104]: Data: bin_data ([6][0][0][0] / 0x0006)
Stream #0:5[0x105]: Data: bin_data ([6][0][0][0] / 0x0006)
[webvtt @ 0x1d07900] Exactly one WebVTT stream is needed.
Output #0, hls, to 'out.m3u8':
Metadata:
encoder : Lavf57.19.100
Stream #0:0: Video: mpeg2video ([2][0][0][0] / 0x0002), yuv420p, 720x576 [SAR 64:45 DAR 16:9], q=2-31, max. 7700 kb/s, 25 fps, 25 tbr, 90k tbn, 25 tbc
Stream #0:1: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, 192 kb/s
Stream #0:2(und): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Stream #0:3 -> #0:2 (copy)
Press [q] to stop, [?] for help
Program received signal SIGSEGV, Segmentation fault.
compute_muxer_pkt_fields (s=s@entry=0x1d07900, st=0x1d09100, pkt=pkt@entry=0x7fffffffd260)
at libavformat/mux.c:576
576 st->priv_pts->val = pkt->dts;
(gdb) bt
#0 compute_muxer_pkt_fields (s=s@entry=0x1d07900, st=0x1d09100,
pkt=pkt@entry=0x7fffffffd260) at libavformat/mux.c:576
#1 0x00000000006237b8 in av_write_frame (s=s@entry=0x1d07900, pkt=pkt@entry=0x7fffffffd260)
at libavformat/mux.c:786
#2 0x00000000006245b4 in ff_write_chained (dst=0x1d07900, dst_stream=0, pkt=0x7fffffffd3d0,
src=0x1d02f80, interleave=0) at libavformat/mux.c:1133
#3 0x0000000000621fad in write_packet (s=s@entry=0x1d02f80, pkt=pkt@entry=0x7fffffffd3d0)
at libavformat/mux.c:677
#4 0x00000000006240be in av_interleaved_write_frame (s=s@entry=0x1d02f80, pkt=0x0,
pkt@entry=0x7fffffffd610) at libavformat/mux.c:1040
#5 0x00000000004913da in write_frame (s=0x1d02f80, pkt=pkt@entry=0x7fffffffd610,
ost=ost@entry=0x1d05740) at ffmpeg.c:781
#6 0x0000000000495349 in do_streamcopy (ist=ist@entry=0x1cdbca0, ost=0x1d05740,
pkt=pkt@entry=0x7fffffffda80) at ffmpeg.c:1911
#7 0x00000000004978a3 in process_input_packet (no_eof=0, pkt=0x7fffffffda80, ist=0x1cdbca0)
at ffmpeg.c:2433
#8 process_input (file_index=30379808) at ffmpeg.c:3979
#9 transcode_step () at ffmpeg.c:4067
#10 transcode () at ffmpeg.c:4121
#11 0x0000000000479c2b in main (argc=<optimized out>, argv=0x7fffffffdd28) at ffmpeg.c:4314
(gdb) disass $pc-32,$pc+32
Dump of assembler code from 0x6221e0 to 0x622220:
0x00000000006221e0 <compute_muxer_pkt_fields+288>: rolb (%rax,%rax,1)
0x00000000006221e3 <compute_muxer_pkt_fields+291>: add %al,(%rcx)
0x00000000006221e5 <compute_muxer_pkt_fields+293>: jne 0x622760 <compute_muxer_pkt_fields+1696>
0x00000000006221eb <compute_muxer_pkt_fields+299>: mov 0x8(%rbx),%rdi
0x00000000006221ef <compute_muxer_pkt_fields+303>: mov 0x300(%rbx),%rsi
0x00000000006221f6 <compute_muxer_pkt_fields+310>: mov %rcx,0xf0(%rbx)
0x00000000006221fd <compute_muxer_pkt_fields+317>: mov 0xc(%rdi),%eax
=> 0x0000000000622200 <compute_muxer_pkt_fields+320>: mov %rcx,(%rsi)
0x0000000000622203 <compute_muxer_pkt_fields+323>: test %eax,%eax
0x0000000000622205 <compute_muxer_pkt_fields+325>: jne 0x622248 <compute_muxer_pkt_fields+392>
0x0000000000622207 <compute_muxer_pkt_fields+327>: movslq 0x8c(%rdi),%rdx
0x000000000062220e <compute_muxer_pkt_fields+334>: movslq 0x34(%rbx),%rax
0x0000000000622212 <compute_muxer_pkt_fields+338>: mov 0x10(%rsi),%rdi
0x0000000000622216 <compute_muxer_pkt_fields+342>: imul %rdx,%rax
0x000000000062221a <compute_muxer_pkt_fields+346>: add 0x8(%rsi),%rax
0x000000000062221e <compute_muxer_pkt_fields+350>: js 0x6228e0 <compute_muxer_pkt_fields+2080>
End of assembler dump.
(gdb) info register
rax 0x3 3
rbx 0x1d09100 30445824
rcx 0x0 0
rdx 0x8000000000000000 -9223372036854775808
rsi 0x0 0
rdi 0x1d09560 30446944
rbp 0x7fffffffd260 0x7fffffffd260
rsp 0x7fffffffd090 0x7fffffffd090
r8 0x0 0
r9 0x7fffffffd260 140737488343648
r10 0x0 0
r11 0x8000000000000001 -9223372036854775807
r12 0x8000000000000000 -9223372036854775808
r13 0x1d02f80 30420864
r14 0x1d07900 30439680
r15 0x1d05de0 30432736
rip 0x622200 0x622200 <compute_muxer_pkt_fields+320>
eflags 0x10246 [ PF ZF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
comment:9 by , 9 years ago
| Cc: | added |
|---|
Segfault fixed in c62d1780fff8a1997dd1707bbc557efc8fe41e3c
not sure if this completly fixes this issue or if hls/webvvt should/could do better and not fail in this case)
Maybe anshul (in CC could comment?)
comment:10 by , 9 years ago
| Cc: | added |
|---|
comment:12 by , 8 years ago
is this actually a regression ? where the output files previously correct ?
comment:13 by , 8 years ago
Works fine here:
$ ffmpeg -i sample.ts -codec copy out.m3u8
ffmpeg version N-74027-gec7f04c Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 54. 29.100 / 54. 29.100
libavcodec 56. 55.100 / 56. 55.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 29.100 / 5. 29.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
[NULL @ 0x3671d60] start time for stream 4 is not set in estimate_timings_from_pts
[NULL @ 0x36728e0] start time for stream 5 is not set in estimate_timings_from_pts
Input #0, mpegts, from 'sample.ts':
Duration: 00:00:03.84, start: 72016.973667, bitrate: 4284 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv), 720x576 [SAR 64:45 DAR 16:9], max. 7700 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 192 kb/s
Stream #0:2[0x102]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 192 kb/s
Stream #0:3[0x103](und): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
Stream #0:4[0x104]: Data: bin_data ([6][0][0][0] / 0x0006)
Stream #0:5[0x105]: Data: bin_data ([6][0][0][0] / 0x0006)
Output #0, hls, to 'out.m3u8':
Metadata:
encoder : Lavf56.40.101
Stream #0:0: Video: mpeg2video ([2][0][0][0] / 0x0002), yuv420p, 720x576 [SAR 64:45 DAR 16:9], q=2-31, max. 7700 kb/s, 25 fps, 25 tbr, 90k tbn, 25 tbc
Stream #0:1: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, 192 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 81 fps=0.0 q=-1.0 Lsize=N/A time=00:00:03.22 bitrate=N/A
video:1587kB audio:73kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
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Is the crash reproducible with current FFmpeg git head?