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  1. $ ffmpeg -y -f x11grab -r 15 -s 640x480 -i :0.0 -f alsa -i default out.mkv
  2. ffmpeg version 2.1.git Copyright (c) 2000-2014 the FFmpeg developers
  3. built on Feb 6 2014 22:39:52 with gcc 4.7.1 (GCC)
  4. configuration: --prefix=/usr --enable-x11grab --enable-gpl --enable-openssl --enable-openal --enable-libxvid --enable-nonfree --enable-libxavs --enable-libx264 --enable-libvpx --enable-libvorbis --enable-libvo-amrwbenc --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libv4l2 --enable-libutvideo --enable-libtheora --enable-libspeex --enable-version3 --enable-libschroedinger --enable-libpulse --enable-libopenjpeg --enable-libmp3lame --enable-libmodplug --enable-libfaac --enable-libdc1394 --enable-libcelt --enable-libcdio --enable-libass --enable-gnutls --enable-frei0r --enable-vdpau --enable-shared --enable-postproc
  5. libavutil 52. 63.100 / 52. 63.100
  6. libavcodec 55. 49.101 / 55. 49.101
  7. libavformat 55. 30.100 / 55. 30.100
  8. libavdevice 55. 7.100 / 55. 7.100
  9. libavfilter 4. 1.102 / 4. 1.102
  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. [x11grab @ 0x9b851e0] device: :0.0 -> display: :0.0 x: 0 y: 0 width: 640 height: 480
  14. [x11grab @ 0x9b851e0] shared memory extension found
  15. Input #0, x11grab, from ':0.0':
  16. Duration: N/A, start: 1391780284.613165, bitrate: 147456 kb/s
  17. Stream #0:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 640x480, 147456 kb/s, 15 tbr, 1000k tbn, 15 tbc
  18. Guessed Channel Layout for Input Stream #1.0 : stereo
  19. Input #1, alsa, from 'default':
  20. Duration: N/A, start: 1391780284.625983, bitrate: 1536 kb/s
  21. Stream #1:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
  22. No pixel format specified, yuv444p for H.264 encoding chosen.
  23. Use -pix_fmt yuv420p for compatibility with outdated media players.
  24. [libx264 @ 0x9ba91e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
  25. [libx264 @ 0x9ba91e0] profile High 4:4:4 Predictive, level 2.2, 4:4:4 8-bit
  26. [libx264 @ 0x9ba91e0] 264 - core 125 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - 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=1 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=15 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
  27. Output #0, matroska, to 'out.mkv':
  28. Metadata:
  29. encoder : Lavf55.30.100
  30. Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv444p, 640x480, q=-1--1, 1k tbn, 15 tbc
  31. Stream #0:1: Audio: vorbis (libvorbis) (oV[0][0] / 0x566F), 48000 Hz, stereo, fltp
  32. Stream mapping:
  33. Stream #0:0 -> #0:0 (rawvideo -> libx264)
  34. Stream #1:0 -> #0:1 (pcm_s16le -> libvorbis)
  35. Press [q] to stop, [?] for help
  36. [swscaler @ 0x9bb2ea0] Warning: data is not aligned! This can lead to a speedloss
  37. frame= 11 fps=0.0 q=0.0 size= 4kB time=00:00:00.80 bitrate= 45.7kbits/s
  38. frame= 19 fps= 19 q=0.0 size= 4kB time=00:00:01.31 bitrate= 27.9kbits/s
  39. frame= 26 fps= 17 q=0.0 size= 4kB time=00:00:01.86 bitrate= 19.7kbits/s
  40. frame= 34 fps= 17 q=0.0 size= 4kB time=00:00:02.31 bitrate= 15.8kbits/s
  41. frame= 41 fps= 16 q=0.0 size= 4kB time=00:00:02.83 bitrate= 12.9kbits/s
  42. frame= 49 fps= 16 q=27.0 size= 56kB time=00:00:03.37 bitrate= 136.8kbits/s
  43. frame= 57 fps= 16 q=27.0 size= 63kB time=00:00:03.84 bitrate= 134.0kbits/s
  44. frame= 64 fps= 16 q=27.0 size= 68kB time=00:00:04.33 bitrate= 128.8kbits/s
  45. frame= 72 fps= 16 q=27.0 size= 76kB time=00:00:04.88 bitrate= 127.4kbits/s
  46. frame= 75 fps= 15 q=27.0 size= 78kB time=00:00:05.34 bitrate= 120.2kbits/s
  47. frame= 85 fps= 15 q=27.0 size= 87kB time=00:00:05.84 bitrate= 122.0kbits/s
  48. frame= 93 fps= 15 q=27.0 size= 94kB time=00:00:06.37 bitrate= 120.5kbits/s
  49. frame= 100 fps= 15 q=27.0 size= 100kB time=00:00:06.84 bitrate= 119.6kbits/s
  50. frame= 108 fps= 15 q=27.0 size= 106kB time=00:00:07.37 bitrate= 118.1kbits/s
  51. frame= 115 fps= 15 q=27.0 size= 112kB time=00:00:07.96 bitrate= 115.1kbits/s
  52. frame= 123 fps= 15 q=27.0 size= 118kB time=00:00:08.40 bitrate= 115.4kbits/s
  53. frame= 131 fps= 15 q=27.0 size= 125kB time=00:00:08.89 bitrate= 115.0kbits/s
  54. frame= 138 fps= 15 q=27.0 size= 131kB time=00:00:09.36 bitrate= 114.2kbits/s
  55. frame= 146 fps= 15 q=24.0 size= 210kB time=00:00:09.89 bitrate= 173.6kbits/s
  56. frame= 152 fps= 15 q=27.0 size= 254kB time=00:00:09.89 bitrate= 209.9kbits/s
  57. frame= 161 fps= 15 q=27.0 size= 280kB time=00:00:10.73 bitrate= 213.5kbits/s
  58. frame= 169 fps= 15 q=27.0 size= 359kB time=00:00:11.37 bitrate= 258.4kbits/s
  59. frame= 177 fps= 15 q=27.0 size= 364kB time=00:00:11.96 bitrate= 249.4kbits/s
  60. frame= 185 fps= 15 q=27.0 size= 370kB time=00:00:12.50 bitrate= 242.6kbits/s
  61. frame= 192 fps= 15 q=27.0 size= 436kB time=00:00:13.06 bitrate= 273.4kbits/s
  62. frame= 200 fps= 15 q=27.0 size= 442kB time=00:00:13.55 bitrate= 267.3kbits/s
  63. frame= 207 fps= 15 q=27.0 size= 448kB time=00:00:14.07 bitrate= 260.6kbits/s
  64. frame= 215 fps= 15 q=27.0 size= 454kB time=00:00:14.54 bitrate= 255.7kbits/s
  65. frame= 223 fps= 15 q=27.0 size= 460kB time=00:00:15.08 bitrate= 250.1kbits/s
  66. frame= 231 fps= 15 q=27.0 size= 467kB time=00:00:15.58 bitrate= 245.4kbits/s
  67. frame= 238 fps= 15 q=27.0 size= 499kB time=00:00:16.07 bitrate= 254.2kbits/s
  68. frame= 247 fps= 15 q=27.0 size= 514kB time=00:00:16.57 bitrate= 254.1kbits/s
  69. frame= 255 fps= 15 q=27.0 size= 535kB time=00:00:16.95 bitrate= 258.6kbits/s
  70. frame= 262 fps= 15 q=27.0 size= 558kB time=00:00:16.95 bitrate= 269.6kbits/s
  71. frame= 268 fps= 15 q=27.0 size= 582kB time=00:00:16.95 bitrate= 281.0kbits/s
  72. frame= 275 fps= 15 q=27.0 size= 605kB time=00:00:16.95 bitrate= 292.4kbits/s
  73. frame= 282 fps= 15 q=27.0 size= 634kB time=00:00:16.95 bitrate= 306.4kbits/s
  74. frame= 289 fps= 15 q=27.0 size= 660kB time=00:00:16.95 bitrate= 318.8kbits/s
  75. frame= 297 fps= 15 q=27.0 size= 683kB time=00:00:16.95 bitrate= 329.7kbits/s
  76. [alsa @ 0x9b9db40] ALSA buffer xrun.
  77. frame= 304 fps= 15 q=27.0 size= 702kB time=00:00:20.71 bitrate= 277.8kbits/s
  78. frame= 312 fps= 15 q=27.0 size= 723kB time=00:00:20.71 bitrate= 285.8kbits/s
  79. frame= 319 fps= 15 q=27.0 size= 738kB time=00:00:20.71 bitrate= 291.9kbits/s
  80. frame= 327 fps= 15 q=27.0 size= 760kB time=00:00:20.71 bitrate= 300.7kbits/s
  81. frame= 334 fps= 15 q=27.0 size= 777kB time=00:00:20.71 bitrate= 307.3kbits/s
  82. frame= 341 fps= 15 q=27.0 size= 794kB time=00:00:20.71 bitrate= 313.9kbits/s
  83. frame= 348 fps= 15 q=27.0 size= 812kB time=00:00:20.71 bitrate= 321.0kbits/s
  84. frame= 354 fps= 15 q=27.0 size= 829kB time=00:00:20.73 bitrate= 327.5kbits/s
  85. [alsa @ 0x9b9db40] ALSA buffer xrun.
  86. frame= 360 fps= 14 q=27.0 size= 847kB time=00:00:24.97 bitrate= 277.9kbits/s
  87. frame= 367 fps= 14 q=27.0 size= 865kB time=00:00:24.97 bitrate= 283.7kbits/s
  88. frame= 374 fps= 14 q=27.0 size= 887kB time=00:00:24.97 bitrate= 290.9kbits/s
  89. frame= 381 fps= 14 q=27.0 size= 905kB time=00:00:24.97 bitrate= 296.9kbits/s
  90. frame= 388 fps= 14 q=27.0 size= 927kB time=00:00:24.97 bitrate= 304.0kbits/s
  91. frame= 395 fps= 14 q=27.0 size= 943kB time=00:00:24.97 bitrate= 309.4kbits/s
  92. frame= 402 fps= 14 q=27.0 size= 958kB time=00:00:24.97 bitrate= 314.3kbits/s
  93. frame= 410 fps= 14 q=27.0 size= 984kB time=00:00:24.97 bitrate= 322.7kbits/s
  94. frame= 417 fps= 14 q=27.0 size= 1011kB time=00:00:24.97 bitrate= 331.6kbits/s
  95. [alsa @ 0x9b9db40] ALSA buffer xrun.
  96. frame= 424 fps= 14 q=27.0 size= 1025kB time=00:00:29.80 bitrate= 281.6kbits/s
  97. frame= 432 fps= 14 q=27.0 size= 1038kB time=00:00:29.80 bitrate= 285.3kbits/s
  98. frame= 440 fps= 14 q=27.0 size= 1155kB time=00:00:29.80 bitrate= 317.4kbits/s
  99. frame= 451 fps= 14 q=27.0 size= 1162kB time=00:00:29.80 bitrate= 319.5kbits/s
  100. frame= 460 fps= 14 q=27.0 size= 1197kB time=00:00:29.80 bitrate= 329.0kbits/s
  101. frame= 470 fps= 15 q=27.0 size= 1271kB time=00:00:29.80 bitrate= 349.5kbits/s
  102. [alsa @ 0x9b9db40] ALSA buffer xrun.
  103. frame= 477 fps= 15 q=27.0 size= 1274kB time=00:00:33.10 bitrate= 315.3kbits/s
  104. frame= 485 fps= 15 q=27.0 size= 1293kB time=00:00:33.65 bitrate= 314.8kbits/s
  105. frame= 493 fps= 15 q=27.0 size= 1307kB time=00:00:34.16 bitrate= 313.4kbits/s
  106. frame= 501 fps= 15 q=27.0 size= 1441kB time=00:00:34.19 bitrate= 345.4kbits/s
  107. frame= 509 fps= 15 q=27.0 size= 1477kB time=00:00:34.19 bitrate= 354.0kbits/s
  108. frame= 517 fps= 15 q=27.0 size= 1530kB time=00:00:35.82 bitrate= 349.8kbits/s
  109. frame= 524 fps= 15 q=27.0 size= 1530kB time=00:00:36.29 bitrate= 345.4kbits/s
  110. frame= 532 fps= 15 q=27.0 size= 1531kB time=00:00:36.80 bitrate= 340.7kbits/s
  111. frame= 536 fps= 14 q=27.0 Lsize= 1586kB time=00:00:37.13 bitrate= 349.9kbits/s
  112. video:1318kB audio:250kB subtitle:0 data:0 global headers:4kB muxing overhead 0.859827%
  113. [libx264 @ 0x9ba91e0] frame I:11 Avg QP:16.46 size: 50556
  114. [libx264 @ 0x9ba91e0] frame P:230 Avg QP:23.37 size: 2642
  115. [libx264 @ 0x9ba91e0] frame B:295 Avg QP:27.78 size: 629
  116. [libx264 @ 0x9ba91e0] consecutive B-frames: 18.5% 23.1% 3.9% 54.5%
  117. [libx264 @ 0x9ba91e0] mb I I16..4: 20.3% 48.9% 30.8%
  118. [libx264 @ 0x9ba91e0] mb P I16..4: 0.5% 0.7% 1.0% P16..4: 11.4% 3.1% 1.6% 0.0% 0.0% skip:81.7%
  119. [libx264 @ 0x9ba91e0] mb B I16..4: 0.1% 0.2% 0.2% B16..8: 4.9% 1.1% 0.3% direct: 0.2% skip:93.0% L0:49.0% L1:47.6% BI: 3.4%
  120. [libx264 @ 0x9ba91e0] 8x8 transform intra:42.5% inter:48.5%
  121. [libx264 @ 0x9ba91e0] coded y,u,v intra: 42.9% 30.5% 29.9% inter: 1.6% 0.9% 1.0%
  122. [libx264 @ 0x9ba91e0] i16 v,h,dc,p: 30% 68% 1% 2%
  123. [libx264 @ 0x9ba91e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 33% 42% 2% 2% 2% 2% 3% 2%
  124. [libx264 @ 0x9ba91e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 26% 14% 7% 6% 5% 6% 7% 7%
  125. [libx264 @ 0x9ba91e0] Weighted P-Frames: Y:0.0% UV:0.0%
  126. [libx264 @ 0x9ba91e0] ref P L0: 48.0% 3.2% 31.8% 17.0%
  127. [libx264 @ 0x9ba91e0] ref B L0: 69.6% 28.6% 1.9%
  128. [libx264 @ 0x9ba91e0] ref B L1: 97.2% 2.8%
  129. [libx264 @ 0x9ba91e0] kb/s:302.12
  130. Received signal 2: terminating.
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