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  1. ussher@ussher:~/storage/junk/jamroom/screencasts/udemy/course2-developers_guide_to$ ffmpeg -f alsa -ac 2 -i pulse -f x11grab -show_region 1 -s hd720 -i :0.0+342,1284 -vcodec libx264 ./out.mp4
  2. ffmpeg version git-2013-11-09-64f4816 Copyright (c) 2000-2013 the FFmpeg developers
  3. built on Nov 9 2013 19:16:51 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  4. configuration: --prefix=/home/ussher/ffmpeg_build --extra-cflags=-I/home/ussher/ffmpeg_build/include --extra-ldflags=-L/home/ussher/ffmpeg_build/lib --bindir=/home/ussher/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
  5. libavutil 52. 52.100 / 52. 52.100
  6. libavcodec 55. 41.100 / 55. 41.100
  7. libavformat 55. 21.100 / 55. 21.100
  8. libavdevice 55. 5.100 / 55. 5.100
  9. libavfilter 3. 90.102 / 3. 90.102
  10. libswscale 2. 5.101 / 2. 5.101
  11. libswresample 0. 17.104 / 0. 17.104
  12. libpostproc 52. 3.100 / 52. 3.100
  13. Guessed Channel Layout for Input Stream #0.0 : stereo
  14. Input #0, alsa, from 'pulse':
  15. Duration: N/A, start: 1384564153.627477, bitrate: 1536 kb/s
  16. Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
  17. [x11grab @ 0x361da80] device: :0.0+342,1284 -> display: :0.0 x: 342 y: 1284 width: 1280 height: 720
  18. [x11grab @ 0x361da80] shared memory extension found
  19. Input #1, x11grab, from ':0.0+342,1284':
  20. Duration: N/A, start: 1384564153.675560, bitrate: 883852 kb/s
  21. Stream #1:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1280x720, 883852 kb/s, 29.97 tbr, 1000k tbn, 29.97 tbc
  22. File './out.mp4' already exists. Overwrite ? [y/N] y
  23. [swscaler @ 0x35e40c0] deprecated pixel format used, make sure you did set range correctly
  24. No pixel format specified, yuv444p for H.264 encoding chosen.
  25. Use -pix_fmt yuv420p for compatibility with outdated media players.
  26. [libx264 @ 0x363a280] using cpu capabilities: MMX2 SSE2Fast LZCNT
  27. [libx264 @ 0x363a280] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
  28. [libx264 @ 0x363a280] 264 - core 140 r2 1ca7bb9 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - 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=6 lookahead_threads=1 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
  29. Output #0, mp4, to './out.mp4':
  30. Metadata:
  31. encoder : Lavf55.21.100
  32. Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 1280x720, q=-1--1, 30k tbn, 29.97 tbc
  33. Stream #0:1: Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 139 kb/s
  34. Stream mapping:
  35. Stream #1:0 -> #0:0 (rawvideo -> libx264)
  36. Stream #0:0 -> #0:1 (pcm_s16le -> libfdk_aac)
  37. Press [q] to stop, [?] for help
  38. frame= 1082 fps= 61 q=-1.0 Lsize= 1043kB time=00:00:36.06 bitrate= 236.9kbits/s dup=760 drop=276
  39. video:410kB audio:584kB subtitle:0 global headers:0kB muxing overhead 4.940406%
  40. [libx264 @ 0x363a280] frame I:5 Avg QP:18.44 size: 56867
  41. [libx264 @ 0x363a280] frame P:273 Avg QP:13.44 size: 252
  42. [libx264 @ 0x363a280] frame B:804 Avg QP:15.94 size: 82
  43. [libx264 @ 0x363a280] consecutive B-frames: 0.9% 0.0% 0.0% 99.1%
  44. [libx264 @ 0x363a280] mb I I16..4: 36.7% 38.9% 24.5%
  45. [libx264 @ 0x363a280] mb P I16..4: 0.2% 0.1% 0.1% P16..4: 0.1% 0.0% 0.0% 0.0% 0.0% skip:99.5%
  46. [libx264 @ 0x363a280] mb B I16..4: 0.1% 0.0% 0.0% B16..8: 1.7% 0.0% 0.0% direct: 0.0% skip:98.2% L0:66.1% L1:33.9% BI: 0.0%
  47. [libx264 @ 0x363a280] 8x8 transform intra:32.2% inter:15.6%
  48. [libx264 @ 0x363a280] coded y,u,v intra: 16.2% 3.0% 2.6% inter: 0.0% 0.0% 0.0%
  49. [libx264 @ 0x363a280] i16 v,h,dc,p: 26% 74% 0% 0%
  50. [libx264 @ 0x363a280] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 40% 30% 28% 0% 0% 0% 1% 0% 0%
  51. [libx264 @ 0x363a280] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 43% 14% 2% 3% 2% 3% 2% 4%
  52. [libx264 @ 0x363a280] Weighted P-Frames: Y:0.0% UV:0.0%
  53. [libx264 @ 0x363a280] ref P L0: 80.7% 5.5% 10.3% 3.6%
  54. [libx264 @ 0x363a280] ref B L0: 39.2% 60.8% 0.1%
  55. [libx264 @ 0x363a280] ref B L1: 99.8% 0.2%
  56. [libx264 @ 0x363a280] kb/s:92.91
  57. ussher@ussher:~/storage/junk/jamroom/screencasts/udemy/course2-developers_guide_to$
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