Opened 13 years ago

Closed 13 years ago

#2535 closed defect (fixed)

mpeg2video: green artefacts with lowres 3

Reported by: ami_stuff Owned by:
Priority: important Component: avcodec
Version: git-master Keywords: mpeg2video lowres regression
Cc: Blocked By:
Blocking: Reproduced by developer: yes
Analyzed by developer: no

Description

git-b9c5448 16-Feb-2013 - ok
git-b8bb661 17-Feb-2013 - bad

​http://www1.datafilehost.com/d/1041adb7

C:\>ffmpeg -vlowres 3 -i dvdsub.vob -an out.avi
ffmpeg version N-52725-ge756635 Copyright (c) 2000-2013 the FFmpeg developers
  built on May  4 2013 02:45:38 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. 28.100 / 52. 28.100
  libavcodec     55.  7.100 / 55.  7.100
  libavformat    55.  4.101 / 55.  4.101
  libavdevice    55.  0.100 / 55.  0.100
  libavfilter     3. 63.101 /  3. 63.101
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100
[mpeg @ 0x1fbf960] max_analyze_duration 5000000 reached at 5000000 microseconds
Input #0, mpeg, from 'dvdsub.vob':
  Duration: 00:00:07.97, start: 1556.319267, bitrate: 5263 kb/s
    Stream #0:0[0x1bf]: Data: dvd_nav_packet
    Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DA
R 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
    Stream #0:2[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
    Stream #0:3[0x20]: Subtitle: dvd_subtitle
    Stream #0:4[0x22]: Subtitle: dvd_subtitle
    Stream #0:5[0x24]: Subtitle: dvd_subtitle
    Stream #0:6[0x25]: Subtitle: dvd_subtitle
    Stream #0:7[0x26]: Subtitle: dvd_subtitle
    Stream #0:8[0x28]: Subtitle: dvd_subtitle
    Stream #0:9[0x29]: Subtitle: dvd_subtitle
    Stream #0:10[0x21]: Subtitle: dvd_subtitle
    Stream #0:11[0x23]: Subtitle: dvd_subtitle
    Stream #0:12[0x27]: Subtitle: dvd_subtitle
    Stream #0:13[0x2a]: Subtitle: dvd_subtitle
Output #0, avi, to 'out.avi':
  Metadata:
    ISFT            : Lavf55.4.101
    Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 720x576 [SAR 64:45 D
AR 16:9], q=2-31, 200 kb/s, 25 tbn, 25 tbc
Stream mapping:
  Stream #0:1 -> #0:0 (mpeg2video -> mpeg4)
Press [q] to stop, [?] for help
Input stream #0:1 frame changed from size:720x576 fmt:yuv420p to size:90x72 fmt:
yuv420p
frame=   36 fps=0.0 q=31.0 size=     240kB time=00:00:01.44 bitrate=1367.4kbits/
frame=   77 fps=0.0 q=31.0 size=     285kB time=00:00:03.08 bitrate= 756.8kbits/
frame=  118 fps= 79 q=30.3 size=     324kB time=00:00:04.72 bitrate= 562.0kbits/
frame=  159 fps= 80 q=31.0 size=     359kB time=00:00:06.36 bitrate= 461.9kbits/
ac-tex damaged at 26 8
frame=  199 fps= 80 q=19.8 Lsize=     400kB time=00:00:07.96 bitrate= 411.2kbits
/s
video:389kB audio:0kB subtitle:0 global headers:0kB muxing overhead 2.667968%

Change History (4)

comment:1 by Carl Eugen Hoyos, 13 years ago

Component: undetermined → avcodec
Keywords: mpeg2video regression added
Priority: normal → important
Reproduced by developer: set
Status: new → open
Version: unspecified → git-master

Regression since bb29ee6.

comment:3 by Carl Eugen Hoyos, 13 years ago

Keywords: lowres added

comment:4 by Michael Niedermayer, 13 years ago

Resolution: → fixed
Status: open → closed

Fixed by bca50e5cd52240d885afeb3edb0fa2c74b352add and c67bca2b5a94efb8fb3c2ba2c7d9b1b413468838

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