#1516: Possible dead loop while making snapshot from a MP4
-------------------------------------+-------------------------------------
Reporter: tewilove | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
-------------------------------------+-------------------------------------
Old description:
> Summary of the bug:
> CPU 100%.
> How to reproduce:
> [akira@localhost Temp]$ ffmpeg -i sm18304895.mp4 -y -f image2 -ss 479.342
> -vframes 1 208bbd48b6dd6d31a5a0636dfd88ead0.jpg
> ffmpeg version 0.10.4 Copyright (c) 2000-2012 the FFmpeg developers
> built on Jun 13 2012 09:51:06 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5)
> configuration: --prefix=/usr --bindir=/usr/bin
> --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg
> --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --extra-
> cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-
> protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --enable-bzlib
> --disable-crystalhd --enable-gnutls --enable-libass --enable-libcdio
> --enable-libcelt --enable-libdc1394 --disable-indev=jack --enable-
> libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-
> libopenjpeg --enable-libpulse --enable-librtmp --enable-libschroedinger
> --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2
> --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
> --enable-avfilter --enable-postproc --enable-pthreads --disable-static
> --enable-shared --enable-gpl --disable-debug --disable-stripping
> --shlibdir=/usr/lib64 --enable-runtime-cpudetect
> libavutil 51. 35.100 / 51. 35.100
> libavcodec 53. 61.100 / 53. 61.100
> libavformat 53. 32.100 / 53. 32.100
> libavdevice 53. 4.100 / 53. 4.100
> libavfilter 2. 61.100 / 2. 61.100
> libswscale 2. 1.100 / 2. 1.100
> libswresample 0. 6.100 / 0. 6.100
> libpostproc 52. 0.100 / 52. 0.100
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sm18304895.mp4':
> Metadata:
> major_brand : isom
> minor_version : 1
> compatible_brands: isom
> creation_time : 2012-07-08 02:22:48
> copyright :
> copyright-eng :
> Duration: 00:09:43.42, start: 0.000000, bitrate: 1389 kb/s
> Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
> 1280x720, 1319 kb/s, 60 fps, 239.76 tbr, 240k tbn, 120 tbc
> Metadata:
> creation_time : 2012-07-08 05:21:08
> handler_name : Imported with GPAC 0.4.6-DEV-git-62b7369
> Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo,
> s16, 62 kb/s
> Metadata:
> creation_time : 2012-07-08 02:22:48
> handler_name : GPAC ISO Audio Handler
> Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting
> format 'yuvj420p'
> [buffer @ 0xf7f8a0] w:1280 h:720 pixfmt:yuv420p tb:1/1000000 sar:0/1
> sws_param:
> [buffersink @ 0xf7fca0] auto-inserting filter 'auto-inserted scale 0'
> between the filter 'src' and the filter 'out'
> [scale @ 0xf5cec0] w:1280 h:720 fmt:yuv420p -> w:1280 h:720 fmt:yuvj420p
> flags:0x4
> Output #0, image2, to '208bbd48b6dd6d31a5a0636dfd88ead0.jpg':
> Metadata:
> major_brand : isom
> minor_version : 1
> compatible_brands: isom
> creation_time : 2012-07-08 02:22:48
> copyright :
> copyright-eng :
> encoder : Lavf53.32.100
> Stream #0:0(und): Video: mjpeg, yuvj420p, 1280x720, q=2-31, 200 kb/s,
> 90k tbn, 239.76 tbc
> Metadata:
> creation_time : 2012-07-08 05:21:08
> handler_name : Imported with GPAC 0.4.6-DEV-git-62b7369
> Stream mapping:
> Stream #0:0 -> #0:0 (h264 -> mjpeg)
> Press [q] to stop, [?] for help
New description:
Summary of the bug:
CPU 100%.
How to reproduce:
{{{
[akira@localhost Temp]$ ffmpeg -i sm18304895.mp4 -y -f image2 -ss 479.342
-vframes 1 208bbd48b6dd6d31a5a0636dfd88ead0.jpg
ffmpeg version 0.10.4 Copyright (c) 2000-2012 the FFmpeg developers
built on Jun 13 2012 09:51:06 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5)
configuration: --prefix=/usr --bindir=/usr/bin
--datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg
--libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --extra-
cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-
protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --enable-bzlib
--disable-crystalhd --enable-gnutls --enable-libass --enable-libcdio
--enable-libcelt --enable-libdc1394 --disable-indev=jack --enable-
libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-
libopenjpeg --enable-libpulse --enable-librtmp --enable-libschroedinger
--enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2
--enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
--enable-avfilter --enable-postproc --enable-pthreads --disable-static
--enable-shared --enable-gpl --disable-debug --disable-stripping
--shlibdir=/usr/lib64 --enable-runtime-cpudetect
libavutil 51. 35.100 / 51. 35.100
libavcodec 53. 61.100 / 53. 61.100
libavformat 53. 32.100 / 53. 32.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 61.100 / 2. 61.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sm18304895.mp4':
Metadata:
major_brand : isom
minor_version : 1
compatible_brands: isom
creation_time : 2012-07-08 02:22:48
copyright :
copyright-eng :
Duration: 00:09:43.42, start: 0.000000, bitrate: 1389 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
1280x720, 1319 kb/s, 60 fps, 239.76 tbr, 240k tbn, 120 tbc
Metadata:
creation_time : 2012-07-08 05:21:08
handler_name : Imported with GPAC 0.4.6-DEV-git-62b7369
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo,
s16, 62 kb/s
Metadata:
creation_time : 2012-07-08 02:22:48
handler_name : GPAC ISO Audio Handler
Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting
format 'yuvj420p'
[buffer @ 0xf7f8a0] w:1280 h:720 pixfmt:yuv420p tb:1/1000000 sar:0/1
sws_param:
[buffersink @ 0xf7fca0] auto-inserting filter 'auto-inserted scale 0'
between the filter 'src' and the filter 'out'
[scale @ 0xf5cec0] w:1280 h:720 fmt:yuv420p -> w:1280 h:720 fmt:yuvj420p
flags:0x4
Output #0, image2, to '208bbd48b6dd6d31a5a0636dfd88ead0.jpg':
Metadata:
major_brand : isom
minor_version : 1
compatible_brands: isom
creation_time : 2012-07-08 02:22:48
copyright :
copyright-eng :
encoder : Lavf53.32.100
Stream #0:0(und): Video: mjpeg, yuvj420p, 1280x720, q=2-31, 200 kb/s,
90k tbn, 239.76 tbc
Metadata:
creation_time : 2012-07-08 05:21:08
handler_name : Imported with GPAC 0.4.6-DEV-git-62b7369
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> mjpeg)
Press [q] to stop, [?] for help
}}}
--
Comment (by cehoyos):
Replying to [comment:1 tewilove]:
> File will be uploaded to a 3rd-party site soon.
>
> http://115.com/file/beaw4vz9#sm18304895.mp4.tar.xz
If you want support, please upload the sample to
http://www.datafilehost.com/
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1516#comment:5>
FFmpeg <http://ffmpeg.org>
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