h263 seeking / decoding problem

[ami_stuff]

there are visible green gfx bugs while playing the file with ffplay

most likely libavfilter-caused regression

while seeking the video, the area outside of the vid is changing as well - most likely this is also libavfilter-caused regression

 http://www.datafilehost.com/download-1a866460.html

C:\>ffmpeg -i C:\r-2002-30.mov
FFmpeg version git-N-29181-ga304071, Copyright (c) 2000-2011 the FFmpeg develope
rs
  built on Apr 18 2011 21:24:03 with gcc 4.5.2
  configuration: --enable-gpl --enable-version3 --enable-runtime-cpudetect --ena
ble-memalign-hack --enable-avisynth --enable-bzlib --enable-frei0r --enable-libo
pencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --
enable-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger
 --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enabl
e-libx264 --enable-libxavs --enable-libxvid --enable-zlib --cross-prefix=i686-w6
4-mingw32- --target-os=mingw32 --arch=x86_32 --extra-cflags=-I/home/kyle/softwar
e/ffmpeg/external-libraries/win32/include --extra-ldflags=-L/home/kyle/software/
ffmpeg/external-libraries/win32/lib --pkg-config=pkg-config
  libavutil    50. 40. 1 / 50. 40. 1
  libavcodec   52.120. 0 / 52.120. 0
  libavformat  52.108. 0 / 52.108. 0
  libavdevice  52.  4. 0 / 52.  4. 0
  libavfilter   1. 79. 0 /  1. 79. 0
  libswscale    0. 13. 0 /  0. 13. 0

Seems stream 0 codec frame rate differs from container frame rate: 29.97 (30000/
1001) -> 15.00 (15/1)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\r-2002-30.mov':
  Metadata:
    creation_time   : 2001-08-08 17:13:07
  Duration: 00:03:27.66, start: 0.000000, bitrate: 811 kb/s
    Stream #0.0(eng): Video: h263, yuv420p, 352x288 [PAR 12:11 DAR 4:3], 435 kb/
s, 15 fps, 15 tbr, 1500 tbn, 29.97 tbc
    Metadata:
      creation_time   : 2001-08-08 17:13:07
    Stream #0.1(eng): Audio: adpcm_ima_qt, 44100 Hz, 2 channels, s16
    Metadata:
      creation_time   : 2001-08-08 17:13:07
At least one output file must be specified

[ami_stuff]

please seek a few times with the mouse to reproduce gfx bugs on the video area

[cehoyos]

The issue has improved: The areas outside the encoded image are now solid grey instead of green memory dumps, but after seeking, those areas still "leak" into the picture on panning.

[michael]

i cant reproduce this

[ami_stuff]

seems to be fixed for me (can't reproduce it anymore)

[michael]

Closing as it seems to have been fixed somehow by something

[ami_stuff]

The issue has improved: The areas outside the encoded image are now solid grey
instead of green memory dumps, but after seeking, those areas still "leak" into
the picture on panning.

The issue can be reproduced now with:

ffmpeg -ss 1 -i r-2002-30.mov out.avi

or

ffplay -ss 1 r-2002-30.mov

so I re-open this ticket.

[cehoyos]

The areas outside the encoded image are now solid grey instead of green memory dumps (as when the ticket was originally opened), but after seeking, those areas still "leak" into the picture on panning.

[michael]

This video does only conatin 1 keyframe
the other "keyframes" arent real ones
it only decodes correctly if the first frame has been decoded before seeking.

[cehoyos]

After seeking, mplayer -demuxer lavf -vc ffh263 shows some artefacts that disappear quickly.
ffmpeg -ss 1 -i r-2002-30.mov -an -qscale 2 out.avi produces a file that constantly shows the "leaking" of the grey surrounding into the actual video.
(Not a regression, afaict.)

[michael]

Fixed locally, ill push after tests