[FFmpeg-trac] #7177(undetermined:new): crash when using scale with dst_format on 10 bit HEVC source file
FFmpeg
trac at avcodec.org
Sun Apr 29 20:07:40 EEST 2018
#7177: crash when using scale with dst_format on 10 bit HEVC source file
-------------------------------------+-------------------------------------
Reporter: Rollinnn | Type: defect
Status: new | Priority: normal
Component: | Version: git-
undetermined | master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:I was trying to convert from HEVC 10 bit to x264 8 bit
and found that with '''-vf
"scale=1280:534:flags=lanczos:dst_format=yuv420p" -vcodec libx264 -crf 18
-preset ultrafast''' ffmpeg crashes.
ffmpeg is static 32 bit windows build from Zeranoe.
I guess that using dst_format in such way can be wrong, but with some
files it works aithout any warnings.
File that causes crash is attached.
{{{
d:\ffmpeg.exe -i "D:\0\hevc10bit -dst_format yuv420p crash.mkv" -vf
"scale=1280:534:flags=lanczos:dst_format=yuv420p" -vcodec libx264 -crf 18
-preset ultrafast -an "D:\0\output.mkv"
ffmpeg version N-90884-g19c3df0cd6 Copyright (c) 2000-2018 the FFmpeg
developers
built with gcc 7.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass
--enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-
libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr
--enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack
--enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2
--enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-
libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
--enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
--enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-
nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
libavutil 56. 17.100 / 56. 17.100
libavcodec 58. 19.100 / 58. 19.100
libavformat 58. 13.100 / 58. 13.100
libavdevice 58. 4.100 / 58. 4.100
libavfilter 7. 20.100 / 7. 20.100
libswscale 5. 2.100 / 5. 2.100
libswresample 3. 2.100 / 3. 2.100
libpostproc 55. 2.100 / 55. 2.100
Input #0, matroska,webm, from 'D:\0\hevc10bit -dst_format yuv420p
crash.mkv':
Metadata:
ENCODER : Lavf58.10.100
Duration: 00:00:10.09, start: 0.000000, bitrate: 2473 kb/s
Stream #0:0: Video: hevc (Main 10), yuv420p10le(tv,
bt709/unknown/unknown), 1920x800, SAR 1:1 DAR 12:5, 23.98 fps, 23.98 tbr,
1k tbn, 23.98 tbc (default) (forced)
Metadata:
BPS : 7373812
BPS-eng : 7373812
DURATION-eng : 02:09:07.240000000
NUMBER_OF_FRAMES: 185748
NUMBER_OF_FRAMES-eng: 185748
NUMBER_OF_BYTES : 7140836609
NUMBER_OF_BYTES-eng: 7140836609
_STATISTICS_WRITING_APP: mkvmerge v9.9.0 ('Pick Up') 64bit
_STATISTICS_WRITING_APP-eng: mkvmerge v9.9.0 ('Pick Up') 64bit
_STATISTICS_WRITING_DATE_UTC: 2017-09-14 16:29:54
_STATISTICS_WRITING_DATE_UTC-eng: 2017-09-14 16:29:54
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
DURATION : 00:00:10.093000000
Stream mapping:
Stream #0:0 -> #0:0 (hevc (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 04c56380] using SAR=801/800
[libx264 @ 04c56380] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX
[libx264 @ 04c56380] profile High 10, level 3.1, 4:2:0 10-bit
[libx264 @ 04c56380] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec
- Copyleft 2003-2018 - http://www.videolan.org/x264.html - options:
cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1
psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=1 8x8dct=0
cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6
lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0
bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250
keyint_min=23 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=18.0
qcomp=0.60 qpmin=0 qpmax=81 qpstep=4 ip_ratio=1.40 aq=0
Output #0, matroska, to 'D:\0\output.mkv':
Metadata:
encoder : Lavf58.13.100
Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv420p10le,
1280x534 [SAR 801:800 DAR 12:5], q=-1--1, 23.98 fps, 1k tbn, 23.98 tbc
(default) (forced)
Metadata:
BPS : 7373812
BPS-eng : 7373812
DURATION-eng : 02:09:07.240000000
NUMBER_OF_FRAMES: 185748
NUMBER_OF_FRAMES-eng: 185748
NUMBER_OF_BYTES : 7140836609
NUMBER_OF_BYTES-eng: 7140836609
_STATISTICS_WRITING_APP: mkvmerge v9.9.0 ('Pick Up') 64bit
_STATISTICS_WRITING_APP-eng: mkvmerge v9.9.0 ('Pick Up') 64bit
_STATISTICS_WRITING_DATE_UTC: 2017-09-14 16:29:54
_STATISTICS_WRITING_DATE_UTC-eng: 2017-09-14 16:29:54
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
DURATION : 00:00:10.093000000
encoder : Lavc58.19.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Assertion failed!
Program: d:\ffmpeg.exe
File: ../src/x264-20180118-7d0ff22/encoder/slicetype.c, Line 1988
Expression: cost >= 0
This application has requested the Runtime to terminate it in an unusual
way.
Please contact the application's support team for more information.
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7177>
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