ffmpeg -f dshow -aspect 1.3333 -s 768x576  -r 25 -pix_fmt yuyv422 -i video="Hauppauge WinTV 88x Video Capture":audio="Eingang (High Definition Audio-" -c:v libx264 -preset slow -tune grain  -r 25 -vf "crop=760:570:4:0,yadif=0:-1:0,scale=640:480" -pix_fmt yuv420p -c:a libvo_aacenc -ac 2 -ar 44100 -ab 192k -y video.mp4

# Log

ffmpeg version N-44264-g070b0e1 Copyright (c) 2000-2012 the FFmpeg developers
  built on Sep  7 2012 17:38:57 with gcc 4.7.1 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-pthreads --enable-runt
ime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass -
-enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-l
ibfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopenj
peg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheo
ra --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-li
bvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --ena
ble-zlib
  libavutil      51. 72.100 / 51. 72.100
  libavcodec     54. 55.100 / 54. 55.100
  libavformat    54. 25.105 / 54. 25.105
  libavdevice    54.  2.100 / 54.  2.100
  libavfilter     3. 16.100 /  3. 16.100
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
[dshow @ 0000000001f1f6a0] Estimating duration from bitrate, this may be inaccur
ate
Guessed Channel Layout for  Input Stream #0.1 : stereo
Input #0, dshow, from 'video=Hauppauge WinTV 88x Video Capture:audio=Eingang (Hi
gh Definition Audio-':
  Duration: N/A, start: 41395.641000, bitrate: 1411 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 768x576, 25 tbr,
10000k tbn, 25 tbc
    Stream #0:1: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
[libx264 @ 00000000077780e0] 264 - core 125 r2208 d9d2288 - H.264/MPEG-4 AVC cod
ec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 r
ef=5 deblock=1:-2:-2 analyse=0x3:0x113 me=umh subme=8 psy=1 psy_rd=1.00:0.25 mix
ed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=6,6 fast_pski
p=1 chroma_qp_offset=-4 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 dec
imate=0 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b
_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=
25 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=crf mbtree=1 crf=23.0 qcomp=0.
80 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.10 aq=1:0.50
Output #0, mp4, to 'video.mp4':
  Metadata:
    encoder         : Lavf54.25.105
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 640x480, q=-1--1
, 25 tbn, 25 tbc
    Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 192
 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo -> libx264)
  Stream #0:1 -> #0:1 (pcm_s16le -> libvo_aacenc)
Press [q] to stop, [?] for help
frame=   13 fps=0.0 q=0.0 size=       0kB time=00:00:00.96 bitrate=   0.4kbits/s
frame=   25 fps= 25 q=0.0 size=       0kB time=00:00:01.45 bitrate=   0.3kbits/s
frame=   38 fps= 25 q=0.0 size=       0kB time=00:00:01.96 bitrate=   0.2kbits/s
frame=   50 fps= 25 q=0.0 size=       0kB time=00:00:02.44 bitrate=   0.2kbits/s
frame=   63 fps= 25 q=0.0 size=       0kB time=00:00:02.96 bitrate=   0.1kbits/s
frame=   76 fps= 25 q=26.0 size=      82kB time=00:00:03.45 bitrate= 194.7kbits/
frame=   88 fps= 25 q=26.0 size=     173kB time=00:00:03.96 bitrate= 358.6kbits/
frame=  101 fps= 25 q=26.0 size=     303kB time=00:00:04.44 bitrate= 559.1kbits/
frame=  113 fps= 25 q=26.0 size=     410kB time=00:00:04.95 bitrate= 678.2kbits/
frame=  126 fps= 25 q=26.0 size=     523kB time=00:00:05.45 bitrate= 786.3kbits/
frame=  139 fps= 25 q=26.0 size=     641kB time=00:00:05.95 bitrate= 881.0kbits/
frame=  151 fps= 25 q=26.0 size=     759kB time=00:00:06.44 bitrate= 964.7kbits/
frame=  164 fps= 25 q=26.0 size=     881kB time=00:00:06.95 bitrate=1038.0kbits/
frame=  176 fps= 25 q=26.0 size=     994kB time=00:00:07.44 bitrate=1092.7kbits/
frame=  189 fps= 25 q=26.0 size=    1114kB time=00:00:07.95 bitrate=1147.3kbits/
frame=  202 fps= 25 q=26.0 size=    1237kB time=00:00:08.46 bitrate=1196.9kbits/
frame=  214 fps= 25 q=26.0 size=    1347kB time=00:00:08.95 bitrate=1232.9kbits/
frame=  227 fps= 25 q=26.0 size=    1467kB time=00:00:09.45 bitrate=1270.3kbits/
frame=  239 fps= 25 q=26.0 size=    1570kB time=00:00:09.95 bitrate=1291.7kbits/
frame=  252 fps= 25 q=26.0 size=    1677kB time=00:00:10.46 bitrate=1313.0kbits/
frame=  265 fps= 25 q=26.0 size=    1832kB time=00:00:10.94 bitrate=1370.7kbits/
frame=  277 fps= 25 q=26.0 size=    1965kB time=00:00:11.45 bitrate=1405.1kbits/
frame=  290 fps= 25 q=26.0 size=    2114kB time=00:00:11.95 bitrate=1448.6kbits/
frame=  303 fps= 25 q=26.0 size=    2261kB time=00:00:12.46 bitrate=1486.4kbits/
frame=  315 fps= 25 q=26.0 size=    2397kB time=00:00:12.94 bitrate=1516.6kbits/
frame=  328 fps= 25 q=26.0 size=    2556kB time=00:00:13.45 bitrate=1556.2kbits/
frame=  340 fps= 25 q=26.0 size=    2669kB time=00:00:13.94 bitrate=1568.1kbits/
frame=  353 fps= 25 q=26.0 size=    2784kB time=00:00:14.45 bitrate=1577.3kbits/
frame=  366 fps= 25 q=26.0 size=    2896kB time=00:00:14.94 bitrate=1587.3kbits/
frame=  378 fps= 25 q=26.0 size=    3039kB time=00:00:15.45 bitrate=1611.0kbits/
frame=  391 fps= 25 q=26.0 size=    3183kB time=00:00:15.96 bitrate=1633.4kbits/
frame=  404 fps= 25 q=26.0 size=    3331kB time=00:00:16.44 bitrate=1659.1kbits/
frame=  416 fps= 25 q=26.0 size=    3482kB time=00:00:16.96 bitrate=1681.3kbits/
frame=  429 fps= 25 q=26.0 size=    3635kB time=00:00:17.45 bitrate=1706.4kbits/
frame=  441 fps= 25 q=26.0 size=    3781kB time=00:00:17.96 bitrate=1724.5kbits/
frame=  454 fps= 25 q=26.0 size=    3935kB time=00:00:18.44 bitrate=1747.5kbits/
frame=  466 fps= 25 q=26.0 size=    4083kB time=00:00:18.96 bitrate=1763.6kbits/
frame=  479 fps= 25 q=26.0 size=    4247kB time=00:00:19.45 bitrate=1788.6kbits/
frame=  492 fps= 25 q=26.0 size=    4396kB time=00:00:19.95 bitrate=1804.3kbits/
frame=  504 fps= 25 q=26.0 size=    4534kB time=00:00:20.44 bitrate=1816.7kbits/
frame=  517 fps= 25 q=26.0 size=    4693kB time=00:00:20.95 bitrate=1834.8kbits/
frame=  529 fps= 25 q=26.0 size=    4834kB time=00:00:21.44 bitrate=1846.1kbits/
frame=  542 fps= 25 q=26.0 size=    4980kB time=00:00:21.95 bitrate=1858.1kbits/
frame=  554 fps= 25 q=26.0 size=    5108kB time=00:00:22.44 bitrate=1864.5kbits/
frame=  567 fps= 25 q=26.0 size=    5247kB time=00:00:22.95 bitrate=1872.7kbits/
frame=  580 fps= 25 q=26.0 size=    5388kB time=00:00:23.47 bitrate=1880.6kbits/
frame=  592 fps= 25 q=26.0 size=    5521kB time=00:00:23.95 bitrate=1888.0kbits/
frame=  605 fps= 25 q=26.0 size=    5655kB time=00:00:24.46 bitrate=1893.5kbits/
frame=  617 fps= 25 q=26.0 size=    5785kB time=00:00:24.94 bitrate=1899.6kbits/
frame=  630 fps= 25 q=26.0 size=    5913kB time=00:00:25.45 bitrate=1902.8kbits/
frame=  643 fps= 25 q=26.0 size=    6023kB time=00:00:25.95 bitrate=1901.2kbits/
frame=  655 fps= 25 q=26.0 size=    6172kB time=00:00:26.46 bitrate=1910.7kbits/
frame=  668 fps= 25 q=26.0 size=    6312kB time=00:00:26.94 bitrate=1918.8kbits/
frame=  680 fps= 25 q=26.0 size=    6445kB time=00:00:27.45 bitrate=1922.8kbits/
frame=  693 fps= 25 q=26.0 size=    6600kB time=00:00:27.95 bitrate=1934.4kbits/
frame=  706 fps= 25 q=26.0 size=    6744kB time=00:00:28.46 bitrate=1941.1kbits/
frame=  718 fps= 25 q=26.0 size=    6874kB time=00:00:28.94 bitrate=1945.5kbits/
frame=  731 fps= 25 q=26.0 size=    7004kB time=00:00:29.45 bitrate=1948.0kbits/
frame=  743 fps= 25 q=26.0 size=    7120kB time=00:00:29.93 bitrate=1948.1kbits/
frame=  756 fps= 25 q=26.0 size=    7252kB time=00:00:30.45 bitrate=1950.4kbits/
frame=  768 fps= 25 q=26.0 size=    7377kB time=00:00:30.96 bitrate=1951.5kbits/
frame=  781 fps= 25 q=26.0 size=    7496kB time=00:00:31.45 bitrate=1952.4kbits/
frame=  794 fps= 25 q=26.0 size=    7630kB time=00:00:31.96 bitrate=1955.7kbits/
frame=  806 fps= 25 q=26.0 size=    7745kB time=00:00:32.44 bitrate=1955.5kbits/
frame=  819 fps= 25 q=26.0 size=    7870kB time=00:00:32.96 bitrate=1955.6kbits/
frame=  831 fps= 25 q=26.0 size=    7997kB time=00:00:33.45 bitrate=1958.5kbits/
frame=  844 fps= 25 q=26.0 size=    8119kB time=00:00:33.95 bitrate=1958.7kbits/
frame=  856 fps= 25 q=26.0 size=    8248kB time=00:00:34.44 bitrate=1961.6kbits/
frame=  869 fps= 25 q=26.0 size=    8390kB time=00:00:34.96 bitrate=1965.8kbits/
frame=  882 fps= 25 q=26.0 size=    8523kB time=00:00:35.44 bitrate=1969.6kbits/
frame=  894 fps= 25 q=26.0 size=    8645kB time=00:00:35.95 bitrate=1969.6kbits/
frame=  907 fps= 25 q=26.0 size=    8786kB time=00:00:36.44 bitrate=1974.9kbits/
frame=  919 fps= 25 q=26.0 size=    8907kB time=00:00:36.95 bitrate=1974.7kbits/
frame=  932 fps= 25 q=26.0 size=    9056kB time=00:00:37.95 bitrate=1954.6kbits/
frame=  945 fps= 25 q=26.0 size=    9202kB time=00:00:38.46 bitrate=1959.7kbits/
frame=  957 fps= 25 q=26.0 size=    9315kB time=00:00:38.95 bitrate=1959.1kbits/
frame=  970 fps= 25 q=26.0 size=    9437kB time=00:00:39.46 bitrate=1958.8kbits/
frame=  982 fps= 25 q=26.0 size=    9557kB time=00:00:39.95 bitrate=1959.6kbits/
frame=  995 fps= 25 q=26.0 size=    9681kB time=00:00:40.46 bitrate=1960.0kbits/
frame= 1007 fps= 25 q=26.0 size=    9806kB time=00:00:40.94 bitrate=1961.7kbits/
frame= 1020 fps= 25 q=26.0 size=    9943kB time=00:00:41.45 bitrate=1964.9kbits/
frame= 1033 fps= 25 q=26.0 size=   10072kB time=00:00:41.95 bitrate=1966.7kbits/
frame= 1046 fps= 25 q=26.0 size=   10202kB time=00:00:42.46 bitrate=1968.3kbits/
frame= 1058 fps= 25 q=26.0 size=   10311kB time=00:00:42.94 bitrate=1966.9kbits/
frame= 1071 fps= 25 q=26.0 size=   10480kB time=00:00:43.45 bitrate=1975.8kbits/
frame= 1083 fps= 25 q=26.0 size=   10626kB time=00:00:43.95 bitrate=1980.7kbits/
frame= 1096 fps= 25 q=26.0 size=   10782kB time=00:00:44.45 bitrate=1986.7kbits/
frame= 1108 fps= 25 q=26.0 size=   10931kB time=00:00:44.94 bitrate=1992.5kbits/
frame= 1121 fps= 25 q=26.0 size=   11091kB time=00:00:45.45 bitrate=1998.9kbits/
frame= 1134 fps= 25 q=26.0 size=   11252kB time=00:00:45.96 bitrate=2005.4kbits/
frame= 1146 fps= 25 q=26.0 size=   11385kB time=00:00:46.45 bitrate=2007.6kbits/
frame= 1159 fps= 25 q=26.0 size=   11530kB time=00:00:46.96 bitrate=2011.1kbits/
frame= 1171 fps= 25 q=26.0 size=   11623kB time=00:00:47.45 bitrate=2006.6kbits/
frame= 1184 fps= 25 q=26.0 size=   11716kB time=00:00:47.95 bitrate=2001.3kbits/
frame= 1197 fps= 25 q=26.0 size=   11809kB time=00:00:48.44 bitrate=1996.9kbits/
frame= 1209 fps= 25 q=26.0 size=   11905kB time=00:00:48.96 bitrate=1991.8kbits/
frame= 1222 fps= 25 q=26.0 size=   12005kB time=00:00:49.44 bitrate=1988.7kbits/
frame= 1235 fps= 25 q=26.0 size=   12159kB time=00:00:49.95 bitrate=1993.8kbits/
frame= 1247 fps= 25 q=26.0 size=   12280kB time=00:00:50.44 bitrate=1994.3kbits/
frame= 1260 fps= 25 q=26.0 size=   12411kB time=00:00:50.96 bitrate=1995.0kbits/
frame= 1272 fps= 25 q=26.0 size=   12537kB time=00:00:51.44 bitrate=1996.3kbits/
frame= 1285 fps= 25 q=26.0 size=   12669kB time=00:00:51.95 bitrate=1997.6kbits/
frame= 1298 fps= 25 q=26.0 size=   12793kB time=00:00:52.44 bitrate=1998.4kbits/
frame= 1310 fps= 25 q=26.0 size=   12911kB time=00:00:52.95 bitrate=1997.5kbits/
frame= 1323 fps= 25 q=26.0 size=   13040kB time=00:00:53.46 bitrate=1997.9kbits/
frame= 1336 fps= 25 q=26.0 size=   13163kB time=00:00:53.95 bitrate=1998.5kbits/
frame= 1348 fps= 25 q=26.0 size=   13280kB time=00:00:54.46 bitrate=1997.6kbits/
frame= 1361 fps= 25 q=26.0 size=   13394kB time=00:00:54.94 bitrate=1996.9kbits/
frame= 1373 fps= 25 q=26.0 size=   13502kB time=00:00:55.46 bitrate=1994.1kbits/
frame= 1386 fps= 25 q=26.0 size=   13615kB time=00:00:55.95 bitrate=1993.4kbits/
frame= 1399 fps= 25 q=26.0 size=   13721kB time=00:00:56.46 bitrate=1990.8kbits/
frame= 1411 fps= 25 q=26.0 size=   13840kB time=00:00:56.94 bitrate=1990.9kbits/
frame= 1424 fps= 25 q=26.0 size=   13941kB time=00:00:57.45 bitrate=1987.7kbits/
frame= 1436 fps= 25 q=26.0 size=   14043kB time=00:00:57.95 bitrate=1985.1kbits/
frame= 1449 fps= 25 q=26.0 size=   14158kB time=00:00:58.45 bitrate=1984.0kbits/
frame= 1461 fps= 25 q=26.0 size=   14256kB time=00:00:58.94 bitrate=1981.2kbits/
frame= 1474 fps= 25 q=26.0 size=   14369kB time=00:00:59.45 bitrate=1979.9kbits/
frame= 1486 fps= 25 q=26.0 size=   14468kB time=00:00:59.94 bitrate=1977.0kbits/
frame= 1499 fps= 25 q=26.0 size=   14582kB time=00:01:00.45 bitrate=1975.9kbits/
frame= 1512 fps= 25 q=26.0 size=   14700kB time=00:01:00.96 bitrate=1975.2kbits/
frame= 1524 fps= 25 q=26.0 size=   14798kB time=00:01:01.45 bitrate=1972.7kbits/
frame= 1537 fps= 25 q=26.0 size=   14918kB time=00:01:01.96 bitrate=1972.4kbits/
frame= 1549 fps= 25 q=26.0 size=   15047kB time=00:01:02.45 bitrate=1973.7kbits/
frame= 1562 fps= 25 q=26.0 size=   15184kB time=00:01:02.96 bitrate=1975.5kbits/
frame= 1575 fps= 25 q=26.0 size=   15327kB time=00:01:03.45 bitrate=1978.8kbits/
frame= 1587 fps= 25 q=26.0 size=   15468kB time=00:01:03.95 bitrate=1981.2kbits/
frame= 1600 fps= 25 q=26.0 size=   15610kB time=00:01:04.44 bitrate=1984.3kbits/
frame= 1612 fps= 25 q=26.0 size=   15738kB time=00:01:04.96 bitrate=1984.7kbits/
frame= 1625 fps= 25 q=26.0 size=   15875kB time=00:01:05.44 bitrate=1987.1kbits/
real-time buffer 90% full! frame dropped!
[dshow @ 0000000001f1f6a0] real-time buffer 90% full! frame dropped!
    Last message repeated 1 times
[dshow @ 0000000001f1f6a0] real-time buffer 119% full! frame dropped!
    Last message repeated 21 times
real-time buffer 119% full! frame dropped!
frame= 1631 fps= 25 q=-1.0 Lsize=   16667kB time=00:01:05.49 bitrate=2084.7kbits
/s
video:15075kB audio:1536kB subtitle:0 global headers:0kB muxing overhead 0.34180
8%
[dshow @ 0000000001f1f6a0] real-time buffer 119% full! frame dropped!

-
"real-time buffer 90% full! frame dropped!" This only happens when I press "Q" to stop ffmpeg.