#2569 closed defect (fixed)
mszh: crash with yuv421
Reported by: | ami_stuff | Owned by: | |
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Priority: | important | Component: | avcodec |
Version: | git-master | Keywords: | regression |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | yes | |
Analyzed by developer: | no |
Description
attached file crashes ffmpeg here at the end of conversion (but I can't reproduce the crash under gdb)
maybe invalid read?
C:\>ffmpeg -i yuv421.avi out.avi ffmpeg version N-53032-g37d9784 Copyright (c) 2000-2013 the FFmpeg developers built on May 14 2013 02:45:02 with gcc 4.5.0 (GCC) 20100414 (Fedora MinGW 4.5. 0-1.fc14) configuration: --prefix=/var/www/users/research/ffmpeg/snapshots/build --arch= x86 --target-os=mingw32 --cross-prefix=i686-pc-mingw32- --cc='ccache i686-pc-min gw32-gcc' --enable-w32threads --enable-memalign-hack --enable-runtime-cpudetect --enable-cross-compile --enable-static --disable-shared --extra-libs='-lws2_32 - lwinmm -lpthread' --extra-cflags='--static -I/var/www/users/research/ffmpeg/snap shots/build/include' --extra-ldflags='-static -L/var/www/users/research/ffmpeg/s napshots/build/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-version3 --enable-nonfree --enable-libx264 --enable-libspeex --enable-libtheora --enable- libvorbis --enable-libfaac --enable-libxvid --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libmp3lame --enable-libvpx --disable-decoder=libvpx libavutil 52. 31.100 / 52. 31.100 libavcodec 55. 9.100 / 55. 9.100 libavformat 55. 7.100 / 55. 7.100 libavdevice 55. 0.100 / 55. 0.100 libavfilter 3. 65.100 / 3. 65.100 libswscale 2. 3.100 / 2. 3.100 libswresample 0. 17.102 / 0. 17.102 libpostproc 52. 3.100 / 52. 3.100 Input #0, avi, from 'yuv421.avi': Duration: 00:00:00.10, start: 0.000000, bitrate: 128029 kb/s Stream #0:0: Video: mszh (MSZH / 0x485A534D), yuv422p, 1022x768, 10 tbr, 10 tbn, 10 tbc Output #0, avi, to 'out.avi': Metadata: ISFT : Lavf55.7.100 Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 1022x768, q=2-31, 20 0 kb/s, 10 tbn, 10 tbc Stream mapping: Stream #0:0 -> #0:0 (mszh -> mpeg4) Press [q] to stop, [?] for help frame= 1 fps=0.0 q=6.7 Lsize= 65kB time=00:00:00.10 bitrate=5348.2kbits/ s video:60kB audio:0kB subtitle:0 global headers:0kB muxing overhead 9.333551%
Attachments (1)
Change History (10)
by , 12 years ago
Attachment: | yuv421.avi added |
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follow-up: 2 comment:1 by , 12 years ago
Keywords: | mszh added |
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follow-up: 3 comment:2 by , 12 years ago
Replying to cehoyos:
No invalid memory access here.
Does the crash also happen with a Zeranoe binary?
It doesn't. Maybe the problem have something to do with w32threads then?
comment:3 by , 12 years ago
Replying to ami_stuff:
Maybe the problem have something to do with w32threads then?
Does the crash disappear if you compile with --disable-w32threads?
follow-up: 5 comment:4 by , 11 years ago
Please try to reproduce with
ffmpeg -cpuflags -mmx -i yuv421.avi out.avi
(32bit build)
comment:5 by , 11 years ago
Replying to ami_stuff:
Please try to reproduce with
ffmpeg -cpuflags -mmx -i yuv421.avi out.avi
It does crash with -cpuflags -mmx
here (too) but my CPU is not MMX-only, it has other features that are not automatically disabled by -cpuflags -mmx
, the following command line works fine here (and there is no hardware that supports SSE2, SSSE3 or SSE4.1 but not MMX):
$ ffmpeg -cpuflags -mmx-sse2-ssse3-sse4.1 -i yuv421.avi out.avi
(32bit build)
Same behaviour with 32bit and 64bit here.
comment:6 by , 11 years ago
on my old athlon xp it crashed without -cpuflags option*, I can't test it there anymore
- at least with one build
comment:7 by , 11 years ago
The question is if it works on the Athlon with -cpuflags -3dnow-3dnowext
comment:8 by , 11 years ago
Component: | undetermined → avcodec |
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Keywords: | regression added; mszh removed |
Priority: | normal → important |
Reproduced by developer: | set |
Resolution: | → fixed |
Status: | new → closed |
Version: | unspecified → git-master |
$ valgrind ./ffmpeg_g -i yuv421.avi out.avi ==11331== Memcheck, a memory error detector. ==11331== Copyright (C) 2002-2007, and GNU GPL'd, by Julian Seward et al. ==11331== Using LibVEX rev 1854, a library for dynamic binary translation. ==11331== Copyright (C) 2004-2007, and GNU GPL'd, by OpenWorks LLP. ==11331== Using valgrind-3.3.1, a dynamic binary instrumentation framework. ==11331== Copyright (C) 2000-2007, and GNU GPL'd, by Julian Seward et al. ==11331== For more details, rerun with: -v ==11331== ffmpeg version N-53956-g57655c6 Copyright (c) 2000-2013 the FFmpeg developers built on Jun 22 2013 14:18:10 with gcc 4.3.4 (GCC) configuration: --disable-optimizations --cc=/usr/local/gcc-4.3.4/bin/gcc libavutil 52. 35.100 / 52. 35.100 libavcodec 55. 15.100 / 55. 15.100 libavformat 55. 8.102 / 55. 8.102 libavdevice 55. 2.100 / 55. 2.100 libavfilter 3. 75.101 / 3. 75.101 libswscale 2. 3.100 / 2. 3.100 libswresample 0. 17.102 / 0. 17.102 Input #0, avi, from 'yuv421.avi': Duration: 00:00:00.10, start: 0.000000, bitrate: 128029 kb/s Stream #0:0: Video: mszh (MSZH / 0x485A534D), yuv422p, 1022x768, 10 tbr, 10 tbn, 10 tbc Output #0, avi, to 'out.avi': Metadata: ISFT : Lavf55.8.102 Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 1022x768, q=2-31, 200 kb/s, 10 tbn, 10 tbc Stream mapping: Stream #0:0 -> #0:0 (mszh -> mpeg4) Press [q] to stop, [?] for help ==11331== Invalid write of size 8 ==11331== at 0x87072F0: ff_draw_edges_mmx (dsputil_mmx.c:389) ==11331== by 0x85172B0: load_input_picture (mpegvideo_enc.c:1063) ==11331== by 0x85188ED: ff_MPV_encode_picture (mpegvideo_enc.c:1448) ==11331== by 0x861FC24: avcodec_encode_video2 (utils.c:1762) ==11331== by 0x805C37E: do_video_out (ffmpeg.c:947) ==11331== by 0x805CEAF: reap_filters (ffmpeg.c:1091) ==11331== by 0x8066979: transcode_step (ffmpeg.c:3162) ==11331== by 0x8066A3A: transcode (ffmpeg.c:3205) ==11331== by 0x8066F4E: main (ffmpeg.c:3383) ==11331== Address 0x50add50 is 0 bytes after a block of size 211,216 alloc'd ==11331== at 0x4025CFA: memalign (in /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so) ==11331== by 0x4025DAE: posix_memalign (in /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so) ==11331== by 0x89245B3: av_malloc (mem.c:93) ==11331== by 0x8917F7A: av_buffer_alloc (buffer.c:70) ==11331== by 0x8917FE7: av_buffer_allocz (buffer.c:83) ==11331== by 0x89185E6: pool_alloc_buffer (buffer.c:305) ==11331== by 0x8918734: av_buffer_pool_get (buffer.c:343) ==11331== by 0x861BE59: video_get_buffer (utils.c:550) ==11331== by 0x861C1E6: avcodec_default_get_buffer2 (utils.c:615) ==11331== by 0x861CB61: get_buffer_internal (utils.c:830) ==11331== by 0x861CBB9: ff_get_buffer (utils.c:842) ==11331== by 0x85740BE: thread_get_buffer_internal (pthread.c:929) frame= 1 fps=0.3 q=6.7 Lsize= 65kB time=00:00:00.10 bitrate=5348.2kbits/s video:60kB audio:0kB subtitle:0 global headers:0kB muxing overhead 9.331763% ==11331== ==11331== ERROR SUMMARY: 2 errors from 1 contexts (suppressed: 3 from 1) ==11331== malloc/free: in use at exit: 0 bytes in 0 blocks. ==11331== malloc/free: 2,732 allocs, 2,732 frees, 22,946,183 bytes allocated. ==11331== For counts of detected errors, rerun with: -v ==11331== All heap blocks were freed -- no leaks are possible.
No invalid memory access here.
Does the crash also happen with a Zeranoe binary?