| 1 | $ ~/tmp/ffmpeg/ffmpeg_g -f x11grab -video_size 1024x768 -i :100 -codec:v libx264 out.mp4 -y
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| 2 | ffmpeg version N-91446-gfa19fbc Copyright (c) 2000-2018 the FFmpeg developers
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| 3 | built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
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| 4 | configuration: --prefix=/private/home/omry/build/ --enable-libx264 --enable-gpl
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| 5 | libavutil 56. 18.102 / 56. 18.102
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| 6 | libavcodec 58. 21.104 / 58. 21.104
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| 7 | libavformat 58. 17.101 / 58. 17.101
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| 8 | libavdevice 58. 4.101 / 58. 4.101
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| 9 | libavfilter 7. 25.100 / 7. 25.100
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| 10 | libswscale 5. 2.100 / 5. 2.100
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| 11 | libswresample 3. 2.100 / 3. 2.100
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| 12 | libpostproc 55. 2.100 / 55. 2.100
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| 13 | [x11grab @ 0x2ef3140] Stream #0: not enough frames to estimate rate; consider increasing probesize
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| 14 | Input #0, x11grab, from ':100':
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| 15 | Duration: N/A, start: 1531258982.004741, bitrate: N/A
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| 16 | Stream #0:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1024x768, 29.97 fps, 1000k tbr, 1000k tbn, 1000k tbc
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| 17 | Stream mapping:
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| 18 | Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
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| 19 | Press [q] to stop, [?] for help
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| 20 | [libx264 @ 0x2efd980] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
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| 21 | [libx264 @ 0x2efd980] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
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| 22 | [libx264 @ 0x2efd980] 264 - core 148 r2643 5c65704 - 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=24 lookahead_threads=4 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
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| 23 | Output #0, mp4, to 'out.mp4':
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| 24 | Metadata:
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| 25 | encoder : Lavf58.17.101
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| 26 | Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv444p, 1024x768, q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc
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| 27 | Metadata:
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| 28 | encoder : Lavc58.21.104 libx264
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| 29 | Side data:
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| 30 | cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
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| 31 | Segmentation fault3 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x
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