Skalierung und Framerate Problem beim Overlay-Video ffmpeg

Ich kann den folgenden Befehl verwenden, um Webcam-Overlays zur Desktop-Aufnahme hinzuzufügen.

ffmpeg -y -rtbufsize 100M -f gdigrab -framerate 20 -offset_x 0 -offset_y 0 -video_size 1250x750 -draw_mouse 1 -i desktop -f dshow -i video="HP Truevision HD":audio="Microphone (High Definition Audio Device)" -filter_complex "[0]pad=height=ih+10:color=black[b];[b][1:v]overlay=(main_w-overlay_w):main_h-overlay_h[v]" -map "[v]" -c:v libx264 -r 20 -preset ultrafast -tune zerolatency -crf 30 -pix_fmt yuv420p -map 1:a -c:a libmp3lame "D:\today.mp4" 

Sie können auch die Position des Overlays auf einem Video einstellen, aber ein Overlay, bei dem es sich um eine Webcam ("HP Truevision HD") handelt, die eine Bildrate (niedrige Bildrate) aufweist und die Skalierung wie folgt anwendet:

-filter_complex "[1:v]scale=50:50 [ovrl] [1:v][ovrl]overlay=(main_w-overlay_w):main_h-overlay_h[v]" 

Overlay skaliert nicht.

Protokoll:

[gdigrab @ 0000000586183280] Capturing whole desktop as 1250x750x32 at (0,0) Input #0, gdigrab, from 'desktop': Duration: N/A, start: 1462985603.006939, bitrate: 600008 kb/s Stream #0:0: Video: bmp, bgra, 1250x750, 600008 kb/s, 20 tbr, 1000k tbn, 20 tbc Guessed Channel Layout for Input Stream #1.1 : stereo Input #1, dshow, from 'video=HP Truevision HD:audio=Microphone (High Definition Audio Device)': Duration: N/A, start: 520629.164000, bitrate: N/A Stream #1:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 30 tbr, 10000k tbn, 30 tbc Stream #1:1: Audio: pcm_s16le, 44100 Hz, 2 channels, s16, 1411 kb/s [libx264 @ 000000058920eae0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2 [libx264 @ 000000058920eae0] profile Constrained Baseline, level 3.2 [libx264 @ 000000058920eae0] 264 - core 148 r2665 a01e339 - H.264/MPEG-4 AVC cod ec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=0 r ef=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=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 ch roma_qp_offset=0 threads=4 lookahead_threads=4 sliced_threads=1 slices=4 nr=0 de cimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 ke yint=250 keyint_min=20 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=30.0 qcomp =0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0 Output #0, mp4, to 'D:\today.mp4': Metadata: encoder : Lavf57.29.101 Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1250x7 60, q=-1--1, 20 fps, 10240 tbn, 20 tbc (default) Metadata: encoder : Lavc57.30.100 libx264 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1 Stream #0:1: Audio: mp3 (libmp3lame) (i[0][0][0] / 0x0069), 44100 Hz, stereo, s16p Metadata: encoder : Lavc57.30.100 libmp3lame Stream mapping: Stream #0:0 (bmp) -> pad (graph 0) Stream #1:0 (rawvideo) -> overlay:overlay (graph 0) overlay (graph 0) -> Stream #0:0 (libx264) Stream #1:1 -> #0:1 (pcm_s16le (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help frame= 20 fps=0.0 q=29.0 size= 218kB time=00:00:01.00 bitrate=1785.5kbits/ [gdigrab @ 0000000586183280] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8) frame= 21 fps= 20 q=28.0 size= 272kB time=00:00:01.39 bitrate=1599.8kbits/ frame= 40 fps= 26 q=28.0 size= 354kB time=00:00:02.00 bitrate=1449.2kbits/ frame= 42 fps= 20 q=27.0 size= 398kB time=00:00:02.38 bitrate=1369.6kbits/ frame= 60 fps= 23 q=26.0 size= 451kB time=00:00:03.00 bitrate=1231.7kbits/ frame= 64 fps= 21 q=22.0 size= 474kB time=00:00:03.38 bitrate=1147.3kbits/ Past duration 0.629295 too large Past duration 0.685829 too large Past duration 0.680367 too large Past duration 0.688179 too large frame= 80 fps= 22 q=25.0 size= 498kB time=00:00:04.00 bitrate=1019.5kbits/ frame= 84 fps= 20 q=29.0 size= 536kB time=00:00:04.39 bitrate= 998.5kbits/ frame= 100 fps= 22 q=26.0 size= 574kB time=00:00:05.00 bitrate= 941.2kbits/ frame= 106 fps= 21 q=21.0 size= 627kB time=00:00:05.39 bitrate= 951.6kbits/ frame= 120 fps= 21 q=25.0 size= 648kB time=00:00:06.00 bitrate= 885.4kbits/ frame= 126 fps= 21 q=21.0 size= 692kB time=00:00:06.38 bitrate= 888.5kbits/ frame= 140 fps= 21 q=25.0 size= 713kB time=00:00:07.00 bitrate= 833.9kbits/ frame= 147 fps= 21 q=20.0 size= 761kB time=00:00:07.40 bitrate= 841.7kbits/ frame= 160 fps= 21 q=25.0 size= 778kB time=00:00:08.00 bitrate= 796.6kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. frame= 169 fps= 21 q=20.0 size= 826kB time=00:00:08.45 bitrate= 801.0kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 180 fps= 21 q=28.0 size= 841kB time=00:00:09.00 bitrate= 765.9kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 2 times frame= 186 fps= 20 q=25.0 size= 949kB time=00:00:09.38 bitrate= 828.9kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 200 fps= 21 q=27.0 size= 1000kB time=00:00:10.00 bitrate= 819.6kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 209 fps= 20 q=23.0 size= 1136kB time=00:00:10.45 bitrate= 890.6kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times Past duration 0.752586 too large [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. frame= 220 fps= 21 q=26.0 size= 1182kB time=00:00:11.00 bitrate= 880.0kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 2 times frame= 230 fps= 21 q=21.0 size= 1255kB time=00:00:11.50 bitrate= 894.3kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 240 fps= 20 q=25.0 size= 1320kB time=00:00:12.00 bitrate= 901.0kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 249 fps= 20 q=20.0 size= 1381kB time=00:00:12.45 bitrate= 908.7kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 260 fps= 20 q=25.0 size= 1581kB time=00:00:13.00 bitrate= 996.4kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 269 fps= 20 q=23.0 size= 1647kB time=00:00:13.45 bitrate=1003.2kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 280 fps= 20 q=25.0 size= 1677kB time=00:00:14.00 bitrate= 981.0kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 289 fps= 20 q=22.0 size= 1731kB time=00:00:14.45 bitrate= 981.2kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 300 fps= 20 q=23.0 size= 1752kB time=00:00:15.00 bitrate= 956.6kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 309 fps= 20 q=24.0 size= 1809kB time=00:00:15.45 bitrate= 959.2kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 320 fps= 20 q=23.0 size= 1838kB time=00:00:16.00 bitrate= 940.8kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 329 fps= 20 q=30.0 size= 1889kB time=00:00:16.45 bitrate= 940.6kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 340 fps= 20 q=21.0 size= 1992kB time=00:00:17.00 bitrate= 959.8kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 349 fps= 20 q=23.0 size= 2038kB time=00:00:17.45 bitrate= 956.8kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 360 fps= 20 q=21.0 size= 2075kB time=00:00:18.00 bitrate= 944.2kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 369 fps= 20 q=30.0 size= 2117kB time=00:00:18.45 bitrate= 939.9kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 380 fps= 20 q=23.0 size= 2166kB time=00:00:19.00 bitrate= 933.9kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 389 fps= 20 q=30.0 size= 2218kB time=00:00:19.45 bitrate= 934.0kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 400 fps= 20 q=23.0 size= 2267kB time=00:00:20.00 bitrate= 928.4kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 409 fps= 20 q=21.0 size= 2307kB time=00:00:20.45 bitrate= 924.0kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 420 fps= 20 q=23.0 size= 2323kB time=00:00:21.00 bitrate= 906.3kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 429 fps= 20 q=30.0 size= 2376kB time=00:00:21.45 bitrate= 907.6kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 440 fps= 20 q=23.0 size= 2426kB time=00:00:22.00 bitrate= 903.2kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 449 fps= 20 q=30.0 size= 2479kB time=00:00:22.45 bitrate= 904.6kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 460 fps= 20 q=23.0 size= 2580kB time=00:00:23.00 bitrate= 918.8kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 471 fps= 20 q=22.0 size= 2620kB time=00:00:23.55 bitrate= 911.5kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 480 fps= 20 q=21.0 size= 2653kB time=00:00:24.00 bitrate= 905.6kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 489 fps= 20 q=30.0 size= 2698kB time=00:00:24.45 bitrate= 903.9kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 500 fps= 20 q=23.0 size= 2748kB time=00:00:25.00 bitrate= 900.4kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 509 fps= 20 q=23.0 size= 2973kB time=00:00:25.45 bitrate= 957.1kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 520 fps= 20 q=23.0 size= 2992kB time=00:00:26.00 bitrate= 942.8kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 529 fps= 20 q=23.0 size= 3033kB time=00:00:26.45 bitrate= 939.5kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 540 fps= 20 q=23.0 size= 3048kB time=00:00:27.00 bitrate= 924.7kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 549 fps= 20 q=22.0 size= 3088kB time=00:00:27.45 bitrate= 921.6kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 560 fps= 20 q=23.0 size= 3102kB time=00:00:28.00 bitrate= 907.5kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 569 fps= 20 q=22.0 size= 3142kB time=00:00:28.45 bitrate= 904.8kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 3 times frame= 580 fps= 20 q=23.0 size= 3156kB time=00:00:29.00 bitrate= 891.4kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. Last message repeated 4 times frame= 589 fps= 20 q=22.0 size= 3197kB time=00:00:29.45 bitrate= 889.3kbits/ [Parsed_overlay_1 @ 000000058920c740] [framesync @ 00000005862082a8] Buffer queu e overflow, dropping. frame= 591 fps= 20 q=25.0 Lsize= 3230kB time=00:00:29.99 bitrate= 882.2kbits /s dup=300 drop=0 speed=1.01x video:2745kB audio:469kB subtitle:0kB other streams:0kB global headers:0kB muxin g overhead: 0.514673% [libx264 @ 000000058920eae0] frame I:3 Avg QP:22.00 size:171564 [libx264 @ 000000058920eae0] frame P:588 Avg QP:22.15 size: 3903 [libx264 @ 000000058920eae0] mb I I16..4: 100.0% 0.0% 0.0% [libx264 @ 000000058920eae0] mb P I16..4: 1.1% 0.0% 0.0% P16..4: 10.2% 0.0 % 0.0% 0.0% 0.0% skip:88.7% [libx264 @ 000000058920eae0] coded y,uvDC,uvAC intra: 30.8% 54.4% 31.7% inter: 3 .0% 5.7% 1.4% [libx264 @ 000000058920eae0] i16 v,h,dc,p: 38% 32% 17% 12% [libx264 @ 000000058920eae0] i8c dc,h,v,p: 51% 28% 16% 5% [libx264 @ 000000058920eae0] kb/s:760.69 Exiting normally, received signal 2.