Ticket #1400 (closed defect: fixed)
Segfault, using -filter_complex
| Reported by: | burek | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | avfilter |
| Version: | unspecified | Keywords: | crash |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
Summary of the bug:
When running the following command line, a segmentation fault message appeared:
$ ffmpeg -i 1.flv -i 2.flv -filter_complex '[0:0]scale=iw/2:ih/2,pad=2*iw:ih[left];[1:0]scale=iw/2:ih/2[right];[left][right]overlay=main_w/2:0;[0:1][1:1] amerge' out.flv
ffmpeg version N-41142-g8f61526 Copyright (c) 2000-2012 the FFmpeg developers
built on May 30 2012 13:40:37 with gcc 4.6.3
configuration: --enable-static --enable-shared --enable-gpl --enable-nonfree --enable-postproc --enable-libx264 --enable-libaacplus --enable-libmp3lame --enable-libopenjpeg --enable-zlib
libavutil 51. 55.100 / 51. 55.100
libavcodec 54. 23.100 / 54. 23.100
libavformat 54. 6.101 / 54. 6.101
libavdevice 54. 0.100 / 54. 0.100
libavfilter 2. 77.100 / 2. 77.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
[h264 @ 0x9797680] reference picture missing during reorder
Last message repeated 3 times
[h264 @ 0x9797680] Missing reference picture
[h264 @ 0x9797680] decode_slice_header error
[h264 @ 0x9797680] concealing 576 DC, 576 AC, 576 MV errors
[h264 @ 0x9797680] reference picture missing during reorder
Last message repeated 1 times
[h264 @ 0x9797680] Missing reference picture
Last message repeated 1 times
[h264 @ 0x9797680] reference picture missing during reorder
[h264 @ 0x9797680] Missing reference picture
Input #0, flv, from '1.flv':
Metadata:
encoder : Lavf54.0.100
Duration: 00:15:04.99, start: 0.000000, bitrate: 157 kb/s
Stream #0:0: Video: h264 (High), yuv420p, 512x288 [SAR 3:4 DAR 4:3], 250 tbr, 1k tbn, 50 tbc
Stream #0:1: Audio: aac, 44100 Hz, stereo, s16
[h264 @ 0x9798da0] reference picture missing during reorder
Last message repeated 3 times
[h264 @ 0x9798da0] Missing reference picture
[h264 @ 0x9798da0] decode_slice_header error
[h264 @ 0x9798da0] concealing 576 DC, 576 AC, 576 MV errors
[h264 @ 0x9798da0] reference picture missing during reorder
Last message repeated 1 times
[h264 @ 0x9798da0] Missing reference picture
Last message repeated 1 times
[h264 @ 0x9798da0] reference picture missing during reorder
[h264 @ 0x9798da0] Missing reference picture
Input #1, flv, from '2.flv':
Metadata:
encoder : Lavf53.31.100
Duration: 00:15:00.49, start: 0.000000, bitrate: 431 kb/s
Stream #1:0: Video: h264 (High), yuv420p, 512x288 [SAR 3:4 DAR 4:3], 50 tbr, 1k tbn, 50 tbc
Stream #1:1: Audio: aac, 44100 Hz, stereo, s16
[buffer @ 0x9ae4b40] w:512 h:288 pixfmt:yuv420p tb:1/1000 sar:3/4 sws_param:flags=2
[buffer @ 0x98ab100] w:512 h:288 pixfmt:yuv420p tb:1/1000 sar:3/4 sws_param:flags=2
[buffersink @ 0x9ae4a40] No opaque field provided
No channel layout for input 1
Segmentation fault
(warnings about "reference picture" are due to live capturing of h264 stream, so some starting key frames are missing I guess, but both videos play normally)
Change History
comment:2 Changed 13 months ago by burek
I've tried to change 'amerge' with 'amix' and boy did it kill my debian machine instantly :)
Apparently, the encoding process completes, but after that, something starts happening with hdd which takes a lot of time and finally kills the OS (I guess some serious swapping starts or something like that).
The first time I tried with 'amix', it crashed my machine efficiently, so I rebooted and turned the swap off (swapoff -a) and tried the command again :) This time it started again to rape my hdd, but only after the encoding has finished and just before the summary is displayed. I figured, this time it can't be swapping, since it's turned off, so I immediately pressed (and hold for some time) CTRL+C, which finally stopped it (after a minute or so).
This is the entire log of that 2nd try:
$ ffmpeg -i supermen.flv -i Sleeping\ Kittens.flv -filter_complex '[0:0]scale=iw/2:ih/2,pad=2*iw:ih[left];[1:0]scale=iw/2:ih/2[right];[left][right]overlay=main_w/2:0;[0:1][1:1] amix' out.flv
ffmpeg version N-41142-g8f61526 Copyright (c) 2000-2012 the FFmpeg developers
built on May 30 2012 13:40:37 with gcc 4.6.3
configuration: --enable-static --enable-shared --enable-gpl --enable-nonfree --enable-postproc --enable-libx264 --enable-libaacplus --enable-libmp3lame --enable-libopenjpeg --enable-zlib
libavutil 51. 55.100 / 51. 55.100
libavcodec 54. 23.100 / 54. 23.100
libavformat 54. 6.101 / 54. 6.101
libavdevice 54. 0.100 / 54. 0.100
libavfilter 2. 77.100 / 2. 77.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, flv, from 'supermen.flv':
Metadata:
lastkeyframetimestamp: 20
lastkeyframelocation: 949687
creator : YouTube, Inc.
metadatacreator : YouTube Metadata Injector.
haskeyframes : true
hasmetadata : true
Duration: 00:00:20.84, start: 0.000000, bitrate: 371 kb/s
Stream #0:0: Video: flv1, yuv420p, 320x240, 380 kb/s, 25 tbr, 1k tbn, 1k tbc
Stream #0:1: Audio: mp3, 22050 Hz, mono, s16, 56 kb/s
Input #1, flv, from 'Sleeping Kittens.flv':
Metadata:
lastkeyframetimestamp: 183
lastkeyframelocation: 7513173
creator : YouTube, Inc.
metadatacreator : YouTube Metadata Injector.
haskeyframes : true
hasmetadata : true
Duration: 00:03:02.90, start: 0.000000, bitrate: 328 kb/s
Stream #1:0: Video: flv1, yuv420p, 320x240, 336 kb/s, 30 tbr, 1k tbn, 1k tbc
Stream #1:1: Audio: mp3, 22050 Hz, mono, s16, 64 kb/s
[buffer @ 0x81d6a40] w:320 h:240 pixfmt:yuv420p tb:1/1000 sar:0/1 sws_param:flags=2
[buffer @ 0x8140a40] w:320 h:240 pixfmt:yuv420p tb:1/1000 sar:0/1 sws_param:flags=2
[buffersink @ 0x813e560] No opaque field provided
File 'out.flv' already exists. Overwrite ? [y/N] y
auto-inserting filter 'auto-inserted resampler 0' between the filter '0:1' and the filter 'Parsed_amix_4'
[amix @ 0x8140120] auto-inserting filter 'auto-inserted resampler 1' between the filter '1:1' and the filter 'Parsed_amix_4'
[scale @ 0x813ebc0] w:320 h:240 fmt:yuv420p sar:0/1 -> w:160 h:120 fmt:yuv420p sar:0/1 flags:0x2
[pad @ 0x81ceac0] w:160 h:120 -> w:320 h:120 x:0 y:0 color:0x000000FF
[scale @ 0x81d13e0] w:320 h:240 fmt:yuv420p sar:0/1 -> w:160 h:120 fmt:yuva420p sar:0/1 flags:0x2
[overlay @ 0x81d41c0] main w:320 h:120 fmt:yuv420p overlay x:160 y:0 w:160 h:120 fmt:yuva420p
[overlay @ 0x81d41c0] main_tb:1/1000 overlay_tb:1/1000 -> tb:1/1000 exact:1
[aresample @ 0x813db20] chl:mono fmt:s16 r:22050Hz -> chl:mono fmt:flt r:22050Hz
[aresample @ 0x813d8a0] chl:mono fmt:s16 r:22050Hz -> chl:mono fmt:flt r:22050Hz
Output #0, flv, to 'out.flv':
Metadata:
lastkeyframetimestamp: 20
lastkeyframelocation: 949687
creator : YouTube, Inc.
metadatacreator : YouTube Metadata Injector.
haskeyframes : true
hasmetadata : true
encoder : Lavf54.6.101
Stream #0:0: Video: flv1 ([2][0][0][0] / 0x0002), yuv420p, 320x120, q=2-31, 200 kb/s, 1k tbn, 25 tbc
Stream #0:1: Audio: mp3 ([2][0][0][0] / 0x0002), 22050 Hz, mono, flt
Stream mapping:
Stream #0:0 (flv) -> scale
Stream #0:1 (mp3) -> amix:input0
Stream #1:0 (flv) -> scale
Stream #1:1 (mp3) -> amix:input1
overlay -> Stream #0:0 (flv)
amix -> Stream #0:1 (libmp3lame)
Press [q] to stop, [?] for help
get_buffer() failed (-12 2 (nil)) 736kB time=00:00:20.36 bitrate= 296.3kbits/s
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
get_buffer() failed (-12 2 (nil)) 736kB time=00:00:20.36 bitrate= 296.3kbits/s
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
get_buffer() failed (-12 2 (nil)) 736kB time=00:00:20.36 bitrate= 296.3kbits/s
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
get_buffer() failed (-12 2 (nil)) 736kB time=00:00:20.36 bitrate= 296.3kbits/s
Error while decoding stream #1:0
[flv @ 0x812a2a0] get_buffer() failed (-12 2 (nil))
Error while decoding stream #1:0
frame= 509 fps= 14 q=3.5 Lsize= 1206kB time=00:00:20.36 bitrate= 485.4kbits/s
video:636kB audio:487kB global headers:0kB muxing overhead 7.392104%
Received signal 2: terminating.
^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C$
I think the problem rises just after the 1st video has run out, so maybe some kind of bogus error happens because one of the outputs has finished or something. Btw, the resulting output video plays fine :D
comment:3 Changed 13 months ago by cehoyos
Please add backtrace etc. as explained on http://ffmpeg.org/bugreports.html
comment:4 follow-up: ↓ 6 Changed 13 months ago by Cigaes
Please try the patches sent to the mailing list:
http://ffmpeg.org/pipermail/ffmpeg-devel/2012-June/125387.html
http://ffmpeg.org/pipermail/ffmpeg-devel/2012-June/125388.html
Also, try inserting aformat=channel_layouts=''whatever'' in front of each input of amerge.
Also, in the future, the get help the most efficiently, try to trim your command line to the bare minimum exhibiting the problem and using publicly available files.
comment:5 Changed 13 months ago by burek
ok, I'll keep that in mind, I just wanted to avoid the reply like "please provide complete uncut output..."
anyway, I'd like not to try to do anything with that anymore, since it crashes my machine every time I try it.. so I'd like to stay away from it if I can.. I just reported it for the devels to investigate further if they feel like doing it..
comment:6 in reply to: ↑ 4 ; follow-up: ↓ 7 Changed 13 months ago by atlithorn
The patches work (they have since been pushed to git) but the other issue burek mention for amix now also occurs with amerge.
I guess it's not a bug with the audio filters themselves but that we are using them in the same filter_complex statement as the audio filter
running overlay on its own works fine
ffmpeg -i 1.flv -i 2.flv -filter_complex '[0:0]scale=iw/2:ih/2,pad=2*iw:ih[left];[1:0]scale=iw/2:ih/2[right];[left][right]overlay=main_w/2:0' out.flv
as does amerge:
ffmpeg -i 1.flv -i 2.flv -filter_complex '[0:1][1:1] amerge' out.flv
but running them in the same command as burek described ends up crashing the machine right when the end of the file is reached
More than willing to run further tests if that would help.
comment:7 in reply to: ↑ 6 Changed 13 months ago by atlithorn
Created a new ticket for the crash bug #1422
comment:8 Changed 13 months ago by Cigaes
Can you try this patch: http://ffmpeg.org/pipermail/ffmpeg-devel/2012-June/125541.html and see if it fixes anything?
Also, to avoid crashes by memory exhaustion, you can issue limit addressspace 1024M (or the equivalent for other shells).
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Just to be sure, I've tried this same command on some other videos I have and it's pretty much the same error:
$ ffmpeg -i supermen.flv -i kittens.flv -filter_complex '[0:0]scale=iw/2:ih/2,pad=2*iw:ih[left];[1:0]scale=iw/2:ih/2[right];[left][right]overlay=main_w/2:0;[0:1][1:1] amerge' out.flvffmpeg version N-41142-g8f61526 Copyright (c) 2000-2012 the FFmpeg developers built on May 30 2012 13:40:37 with gcc 4.6.3 configuration: --enable-static --enable-shared --enable-gpl --enable-nonfree --enable-postproc --enable-libx264 --enable-libaacplus --enable-libmp3lame --enable-libopenjpeg --enable-zlib libavutil 51. 55.100 / 51. 55.100 libavcodec 54. 23.100 / 54. 23.100 libavformat 54. 6.101 / 54. 6.101 libavdevice 54. 0.100 / 54. 0.100 libavfilter 2. 77.100 / 2. 77.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 15.100 / 0. 15.100 libpostproc 52. 0.100 / 52. 0.100 Input #0, flv, from 'supermen.flv': Metadata: lastkeyframetimestamp: 20 lastkeyframelocation: 949687 creator : YouTube, Inc. metadatacreator : YouTube Metadata Injector. haskeyframes : true hasmetadata : true Duration: 00:00:20.84, start: 0.000000, bitrate: 371 kb/s Stream #0:0: Video: flv1, yuv420p, 320x240, 380 kb/s, 25 tbr, 1k tbn, 1k tbc Stream #0:1: Audio: mp3, 22050 Hz, mono, s16, 56 kb/s Input #1, flv, from 'kittens.flv': Metadata: lastkeyframetimestamp: 183 lastkeyframelocation: 7513173 creator : YouTube, Inc. metadatacreator : YouTube Metadata Injector. haskeyframes : true hasmetadata : true Duration: 00:03:02.90, start: 0.000000, bitrate: 328 kb/s Stream #1:0: Video: flv1, yuv420p, 320x240, 336 kb/s, 30 tbr, 1k tbn, 1k tbc Stream #1:1: Audio: mp3, 22050 Hz, mono, s16, 64 kb/s [buffer @ 0x9107840] w:320 h:240 pixfmt:yuv420p tb:1/1000 sar:0/1 sws_param:flags=2 [buffer @ 0x9107700] w:320 h:240 pixfmt:yuv420p tb:1/1000 sar:0/1 sws_param:flags=2 [buffersink @ 0x9105560] No opaque field provided [amerge @ 0x9107120] No channel layout for input 1 Segmentation fault