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  1. $ ffmpeg -f video4linux2 -i /dev/video1 -f alsa -i default output.mkv
  2. ffmpeg version N-79139-gde1a0d4 Copyright (c) 2000-2016 the FFmpeg developers
  3. built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
  4. configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab
  5. libavutil 55. 19.100 / 55. 19.100
  6. libavcodec 57. 30.100 / 57. 30.100
  7. libavformat 57. 29.101 / 57. 29.101
  8. libavdevice 57. 0.101 / 57. 0.101
  9. libavfilter 6. 40.102 / 6. 40.102
  10. libavresample 3. 0. 0 / 3. 0. 0
  11. libswscale 4. 0.100 / 4. 0.100
  12. libswresample 2. 0.101 / 2. 0.101
  13. libpostproc 54. 0.100 / 54. 0.100
  14. Input #0, video4linux2,v4l2, from '/dev/video1':
  15. Duration: N/A, start: 1859.221170, bitrate: 165888 kb/s
  16. Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 720x576, 165888 kb/s, 25 fps, 25 tbr, 1000k tbn, 1000k tbc
  17. Guessed Channel Layout for Input Stream #1.0 : stereo
  18. Input #1, alsa, from 'default':
  19. Duration: N/A, start: 1459377945.695080, bitrate: 1536 kb/s
  20. Stream #1:0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
  21. No pixel format specified, yuv422p for H.264 encoding chosen.
  22. Use -pix_fmt yuv420p for compatibility with outdated media players.
  23. [libx264 @ 0xaa775a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64
  24. [libx264 @ 0xaa775a0] profile High 4:2:2, level 3.0, 4:2:2 8-bit
  25. [libx264 @ 0xaa775a0] 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=-2 threads=3 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
  26. Output #0, matroska, to 'output.mkv':
  27. Metadata:
  28. encoder : Lavf57.29.101
  29. Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv422p, 720x576, q=-1--1, 25 fps, 1k tbn, 25 tbc
  30. Metadata:
  31. encoder : Lavc57.30.100 libx264
  32. Side data:
  33. cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  34. Stream #0:1: Audio: vorbis (libvorbis) (oV[0][0] / 0x566F), 48000 Hz, stereo, fltp
  35. Metadata:
  36. encoder : Lavc57.30.100 libvorbis
  37. Stream mapping:
  38. Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  39. Stream #1:0 -> #0:1 (pcm_s16le (native) -> vorbis (libvorbis))
  40. Press [q] to stop, [?] for help
  41. [alsa @ 0xaa67ac0] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)
  42. Past duration 0.999886 too large 565kB time=00:00:07.28 bitrate= 635.6kbits/s speed=0.802x
  43. Past duration 0.999748 too large
  44. Past duration 0.999687 too large
  45. Past duration 0.797997 too large 641kB time=00:00:08.32 bitrate= 630.7kbits/s speed=0.825x
  46. Past duration 0.797371 too large
  47. Past duration 0.797340 too large
  48. Past duration 0.798241 too large
  49. Past duration 0.798317 too large
  50. Past duration 0.798546 too large
  51. Last message repeated 1 times
  52. Past duration 0.798622 too large
  53. Past duration 0.798241 too large 674kB time=00:00:08.80 bitrate= 627.8kbits/s speed=0.831x
  54. Past duration 0.798790 too large
  55. Past duration 0.798897 too large
  56. Past duration 0.799019 too large
  57. Past duration 0.799141 too large
  58. Past duration 0.799187 too large
  59. Past duration 0.799461 too large
  60. Past duration 0.799385 too large
  61. Past duration 0.799461 too large
  62. Past duration 0.799599 too large
  63. Past duration 0.799736 too large
  64. Past duration 0.799736 too large 706kB time=00:00:09.24 bitrate= 625.6kbits/s speed=0.827x
  65. Past duration 0.799690 too large
  66. Past duration 0.799812 too large
  67. Last message repeated 1 times
  68. Past duration 0.799721 too large
  69. Past duration 0.998070 too large
  70. Past duration 0.998299 too large
  71. Past duration 0.998192 too large
  72. Last message repeated 1 times
  73. Past duration 0.998222 too large
  74. Past duration 0.998497 too large
  75. Past duration 0.998650 too large
  76. Past duration 0.998466 too large
  77. Past duration 0.998665 too large 745kB time=00:00:09.76 bitrate= 625.0kbits/s speed=0.836x
  78. Past duration 0.998573 too large
  79. Past duration 0.999290 too large
  80. [video4linux2,v4l2 @ 0xaa65fc0] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)
  81. ^Cav_interleaved_write_frame(): Immediate exit requested.84 bitrate=1800.4kbits/s dup=0 drop=3 speed=0.796x
  82. Error writing trailer of output.mkv: Immediate exit requestedframe= 575 fps= 16 q=-1.0 Lsize= 5750kB time=00:00:30.04 bitrate=1568.1kbits/s dup=0 drop=3 speed=0.853x
  83. video:5847kB audio:300kB subtitle:0kB other streams:0kB global headers:4kB muxing overhead: unknown
  84. [libx264 @ 0xaa775a0] frame I:5 Avg QP:23.49 size: 21634
  85. [libx264 @ 0xaa775a0] frame P:459 Avg QP:23.93 size: 10321
  86. [libx264 @ 0xaa775a0] frame B:111 Avg QP:28.86 size: 10281
  87. [libx264 @ 0xaa775a0] consecutive B-frames: 61.4% 38.6% 0.0% 0.0%
  88. [libx264 @ 0xaa775a0] mb I I16..4: 46.8% 40.6% 12.7%
  89. [libx264 @ 0xaa775a0] mb P I16..4: 3.4% 3.2% 0.9% P16..4: 34.7% 9.8% 7.9% 0.0% 0.0% skip:40.1%
  90. [libx264 @ 0xaa775a0] mb B I16..4: 0.1% 0.4% 0.1% B16..8: 43.9% 11.6% 3.4% direct:16.4% skip:24.1% L0:45.1% L1:38.6% BI:16.4%
  91. [libx264 @ 0xaa775a0] 8x8 transform intra:42.7% inter:78.9%
  92. [libx264 @ 0xaa775a0] coded y,uvDC,uvAC intra: 49.6% 54.2% 30.9% inter: 26.4% 46.9% 4.9%
  93. [libx264 @ 0xaa775a0] i16 v,h,dc,p: 9% 88% 1% 2%
  94. [libx264 @ 0xaa775a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 23% 26% 3% 4% 6% 5% 5% 8%
  95. [libx264 @ 0xaa775a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 6% 77% 6% 1% 2% 1% 2% 1% 3%
  96. [libx264 @ 0xaa775a0] i8c dc,h,v,p: 63% 17% 12% 7%
  97. [libx264 @ 0xaa775a0] Weighted P-Frames: Y:8.7% UV:3.5%
  98. [libx264 @ 0xaa775a0] ref P L0: 46.8% 13.1% 23.3% 16.1% 0.7%
  99. [libx264 @ 0xaa775a0] ref B L0: 72.8% 27.2%
  100. [libx264 @ 0xaa775a0] kb/s:1585.83
  101. qExiting normally, received signal 2.
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