[FFmpeg-trac] #1400(undetermined:new): Segfault, using -filter_complex
FFmpeg
trac at avcodec.org
Sun Jun 3 14:07:24 CEST 2012
#1400: Segfault, using -filter_complex
-------------------------------------+-------------------------------------
Reporter: burek | 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:
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)
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1400>
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