Ich habe eine einfache Animation (als Crawl-Text) mit C#-WPF erstellt.
Die Animation ist flüssig und ausgezeichnet. (im WPF-Fenster)
Aber wenn ich es mit FFmpeg als Video aufnehme, hat es ein Flimmerproblem.
Siehe Beispiel1 (Animationsgeschwindigkeit ist hoch) und Beispiel2 (Animationsgeschwindigkeit ist niedrig).
Ist es ein Feldproblem oder ein Synchronisierungsproblem oder ......?
Wie kann ich es reparieren?
AKTUALISIEREN:
das ist mein ffmpeg-Befehl:
ffmpeg -f gdigrab -i title="Wpfwindow" -framerate 30 -vcodec libx264 out1.mp4 -y
Hinweis: Ich brauche framerate=30 oder framerate=25 , weil ich das Video in die Formate PAL und NTSC konvertieren möchte.
Ausgabe der Konsole:
ffmpeg version N-76417-gee20354 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 5.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 5.100 / 55. 5.100
libavcodec 57. 13.102 / 57. 13.102
libavformat 57. 13.100 / 57. 13.100
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 14.101 / 6. 14.101
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.100 / 2. 0.100
libpostproc 54. 0.100 / 54. 0.100
[gdigrab @ 000001df9916af40] Found window ooo, capturing 704x537x32 at (0,0)
Input #0, gdigrab, from 'title=Wpfwindow':
Duration: N/A, start: 1464634804.659289, bitrate: 362576 kb/s
Stream #0:0: Video: bmp, bgra, 704x537, 362576 kb/s, 29.97 tbr, 1000k tbn, 29.97 tbc
No pixel format specified, yuv444p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 000001df9916db40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 000001df9916db40] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
[libx264 @ 000001df9916db40] 264 - core 148 r2638 7599210 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'out1.mp4':
Metadata:
encoder : Lavf57.13.100
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 704x537, q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc
Metadata:
encoder : Lavc57.13.102 libx264
Stream mapping:
Stream #0:0 -> #0:0 (bmp (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame= 16 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
frame= 31 fps= 31 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
frame= 46 fps= 31 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
frame= 61 fps= 30 q=29.0 size= 5kB time=00:00:00.10 bitrate= 375.1kbits/s
frame= 76 fps= 30 q=29.0 size= 11kB time=00:00:00.60 bitrate= 149.6kbits/s
frame= 92 fps= 30 q=29.0 size= 22kB time=00:00:01.13 bitrate= 159.7kbits/s
frame= 107 fps= 30 q=29.0 size= 28kB time=00:00:01.63 bitrate= 141.9kbits/s
frame= 122 fps= 30 q=29.0 size= 36kB time=00:00:02.13 bitrate= 138.7kbits/s
frame= 137 fps= 30 q=29.0 size= 44kB time=00:00:02.63 bitrate= 137.4kbits/s
frame= 152 fps= 30 q=29.0 size= 48kB time=00:00:03.13 bitrate= 126.4kbits/s
frame= 168 fps= 30 q=29.0 size= 52kB time=00:00:03.67 bitrate= 117.1kbits/s
frame= 183 fps= 30 q=29.0 size= 55kB time=00:00:04.17 bitrate= 107.7kbits/s
frame= 188 fps= 30 q=-1.0 Lsize= 74kB time=00:00:06.20 bitrate= 98.1kbits/s
video:72kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.373045%
[libx264 @ 000001df9916db40] frame I:1 Avg QP:18.54 size: 2426
[libx264 @ 000001df9916db40] frame P:129 Avg QP:15.36 size: 483
[libx264 @ 000001df9916db40] frame B:58 Avg QP:22.37 size: 141
[libx264 @ 000001df9916db40] consecutive B-frames: 52.1% 20.2% 0.0% 27.7%
[libx264 @ 000001df9916db40] mb I I16..4: 8.8% 88.0% 3.1%
[libx264 @ 000001df9916db40] mb P I16..4: 0.8% 0.2% 0.2% P16..4: 1.7% 0.7% 0.3% 0.0% 0.0% skip:96.1%
[libx264 @ 000001df9916db40] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 2.0% 0.4% 0.0% direct: 0.0% skip:97.4% L0:42.9% L1:46.7% BI:10.5%
[libx264 @ 000001df9916db40] 8x8 transform intra:44.1% inter:38.4%
[libx264 @ 000001df9916db40] coded y,u,v intra: 4.7% 5.2% 3.4% inter: 0.4% 0.4% 0.1%
[libx264 @ 000001df9916db40] i16 v,h,dc,p: 87% 12% 1% 0%
[libx264 @ 000001df9916db40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 8% 42% 50% 0% 0% 0% 0% 0% 0%
[libx264 @ 000001df9916db40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 60% 8% 23% 2% 2% 1% 2% 1% 1%
[libx264 @ 000001df9916db40] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 000001df9916db40] ref P L0: 56.0% 7.0% 17.4% 19.5%
[libx264 @ 000001df9916db40] ref B L0: 84.8% 10.7% 4.5%
[libx264 @ 000001df9916db40] ref B L1: 98.7% 1.3%
[libx264 @ 000001df9916db40] kb/s:93.00
Exiting normally, received signal 2.
frameratesollte vorher gehen -i, da es ffmpeg mitteilt, wie hoch die Eingaberate ist.
ffmpeg -f gdigrab -framerate 30 -i title="Wpfwindow" -vcodec libx264 out1.mp4 -y
ffmpeg -f gdigrab -framerate 30 -i title="Wpfwindow" -vcodec libx264 -r 30 out1.mp4 -y, aber das funktioniert auch nicht.-rOption hinzu, insbesondere keinen anderen Wert als framerate.
Gyan
Maria
Gyan
Maria