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  1. When run as normal user:
  2. # /usr/local/bin/ffmpeg -i elf_h264.mov -s 480x320 -r 30000/1001 -b:v 1500k -bt 1500k -vcodec libx264 -vpre ipod320 -maxrate 750k -bufsize 4M -refs 1 -coder 0 -me_range 16 -subq 5 -partitions +parti4x4+parti8x8+partp8x8 -g 250 -keyint_min 25 -level 30 -trellis 2 -sc_threshold 40 -i_qfactor 0.71 -acodec libfaac -ac 2 -ar 48000 -ab 128k elf_h264.mp4 -y -v verbose
  3. ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
  4. built on Dec 17 2013 17:20:52 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-4)
  5. configuration: --disable-yasm --enable-gpl --enable-version3 --enable-nonfree --enable-shared --enable-libmp3lame --enable-libx264 --enable-libfaac --enable-libtheora --enable-libvorbis --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libxvid
  6. libavutil 52. 18.100 / 52. 18.100
  7. libavcodec 54. 92.100 / 54. 92.100
  8. libavformat 54. 63.104 / 54. 63.104
  9. libavdevice 54. 3.103 / 54. 3.103
  10. libavfilter 3. 42.103 / 3. 42.103
  11. libswscale 2. 2.100 / 2. 2.100
  12. libswresample 0. 17.102 / 0. 17.102
  13. libpostproc 52. 2.100 / 52. 2.100
  14. Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'elf_h264.mov':
  15. Metadata:
  16. major_brand : qt
  17. minor_version : 537199360
  18. compatible_brands: qt
  19. creation_time : 2013-12-16 20:08:15
  20. Duration: 00:00:20.85, start: 0.000000, bitrate: 1650 kb/s
  21. Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080, 1646 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 5994 tbc
  22. Metadata:
  23. creation_time : 2013-12-16 20:09:13
  24. handler_name : Apple Alias Data Handler
  25. [graph 0 input from stream 0:0 @ 0xda7b80] w:1920 h:1080 pixfmt:yuv420p tb:1/2997 fr:2997/100 sar:0/1 sws_param:flags=2
  26. [scaler for output stream 0:0 @ 0xda8320] w:480 h:320 flags:'0x4' interl:0
  27. [scaler for output stream 0:0 @ 0xda8320] w:1920 h:1080 fmt:yuv420p sar:0/1 -> w:480 h:320 fmt:yuv420p sar:0/1 flags:0x4
  28. [libx264 @ 0xdd61c0] max bitrate less than average bitrate, assuming CBR
  29. [libx264 @ 0xdd61c0] frame MB size (30x20) > level limit (396)
  30. [libx264 @ 0xdd61c0] VBV buffer (3000) > level limit (2000)
  31. [libx264 @ 0xdd61c0] MB rate (17982) > level limit (11880)
  32. [libx264 @ 0xdd61c0] using cpu capabilities: none!
  33. Output #0, mp4, to 'elf_h264.mp4':
  34. Metadata:
  35. major_brand : qt
  36. minor_version : 537199360
  37. compatible_brands: qt
  38. Stream #0:0(eng): Video: h264, yuv420p, 480x320, q=-1--1, 1500 kb/s, 90k tbn, 29.97 tbc
  39. Metadata:
  40. creation_time : 2013-12-16 20:09:13
  41. handler_name : Apple Alias Data Handler
  42. Stream mapping:
  43. Stream #0:0 -> #0:0 (h264 -> libx264)
  44. Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
  45.  
  46. ____________________
  47. When run as root:
  48. # /usr/local/bin/ffmpeg -i elf_h264.mov -s 480x320 -r 30000/1001 -b:v 1500k -bt 1500k -vcodec libx264 -vpre ipod320 -maxrate 750k -bufsize 4M -refs 1 -coder 0 -me_range 16 -subq 5 -partitions +parti4x4+parti8x8+partp8x8 -g 250 -keyint_min 25 -level 30 -trellis 2 -sc_threshold 40 -i_qfactor 0.71 -acodec libfaac -ac 2 -ar 48000 -ab 128k elf_h264.mp4 -y -v verbose
  49. ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
  50. built on Dec 17 2013 17:20:52 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-4)
  51. configuration: --disable-yasm --enable-gpl --enable-version3 --enable-nonfree --enable-shared --enable-libmp3lame --enable-libx264 --enable-libfaac --enable-libtheora --enable-libvorbis --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libxvid
  52. libavutil 52. 18.100 / 52. 18.100
  53. libavcodec 54. 92.100 / 54. 92.100
  54. libavformat 54. 63.104 / 54. 63.104
  55. libavdevice 54. 3.103 / 54. 3.103
  56. libavfilter 3. 42.103 / 3. 42.103
  57. libswscale 2. 2.100 / 2. 2.100
  58. libswresample 0. 17.102 / 0. 17.102
  59. libpostproc 52. 2.100 / 52. 2.100
  60. Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'elf_h264.mov':
  61. Metadata:
  62. major_brand : qt
  63. minor_version : 537199360
  64. compatible_brands: qt
  65. creation_time : 2013-12-16 20:08:15
  66. Duration: 00:00:20.85, start: 0.000000, bitrate: 1650 kb/s
  67. Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080, 1646 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 5994 tbc
  68. Metadata:
  69. creation_time : 2013-12-16 20:09:13
  70. handler_name : Apple Alias Data Handler
  71. [graph 0 input from stream 0:0 @ 0xb23b80] w:1920 h:1080 pixfmt:yuv420p tb:1/2997 fr:2997/100 sar:0/1 sws_param:flags=2
  72. [scaler for output stream 0:0 @ 0xb24320] w:480 h:320 flags:'0x4' interl:0
  73. [scaler for output stream 0:0 @ 0xb24320] w:1920 h:1080 fmt:yuv420p sar:0/1 -> w:480 h:320 fmt:yuv420p sar:0/1 flags:0x4
  74. [libx264 @ 0xb521c0] max bitrate less than average bitrate, assuming CBR
  75. [libx264 @ 0xb521c0] frame MB size (30x20) > level limit (396)
  76. [libx264 @ 0xb521c0] VBV buffer (3000) > level limit (2000)
  77. [libx264 @ 0xb521c0] MB rate (17982) > level limit (11880)
  78. [libx264 @ 0xb521c0] using cpu capabilities: none!
  79. [libx264 @ 0xb521c0] profile Constrained Baseline, level 1.3
  80. [libx264 @ 0xb521c0] 264 - core 138 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=1:0:0 analyse=0x1:0x11 me=hex subme=5 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=2 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=cbr mbtree=1 bitrate=768 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=768 vbv_bufsize=3000 nal_hrd=none ip_ratio=1.41 aq=1:1.00
  81. Output #0, mp4, to 'elf_h264.mp4':
  82. Metadata:
  83. major_brand : qt
  84. minor_version : 537199360
  85. compatible_brands: qt
  86. encoder : Lavf54.63.104
  87. Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 480x320, q=-1--1, 1500 kb/s, 30k tbn, 29.97 tbc
  88. Metadata:
  89. creation_time : 2013-12-16 20:09:13
  90. handler_name : Apple Alias Data Handler
  91. Stream mapping:
  92. Stream #0:0 -> #0:0 (h264 -> libx264)
  93. Press [q] to stop, [?] for help
  94. [h264 @ 0x2afa1a0] Increasing reorder buffer to 1
  95. frame= 6 fps=2.7 q=-1.0 Lsize= 14kB time=00:00:00.20 bitrate= 558.2kbits/s
  96. video:13kB audio:0kB subtitle:0 global headers:0kB muxing overhead 6.114698%
  97. [libx264 @ 0xb521c0] frame I:1 Avg QP:21.45 size: 10373
  98. [libx264 @ 0xb521c0] frame P:5 Avg QP:18.44 size: 417
  99. [libx264 @ 0xb521c0] mb I I16..4: 36.8% 0.0% 63.2%
  100. [libx264 @ 0xb521c0] mb P I16..4: 0.5% 0.0% 0.0% P16..4: 15.2% 2.9% 0.3% 0.0% 0.0% skip:81.2%
  101. [libx264 @ 0xb521c0] coded y,uvDC,uvAC intra: 66.2% 82.8% 42.4% inter: 2.1% 11.7% 0.4%
  102. [libx264 @ 0xb521c0] i16 v,h,dc,p: 50% 13% 8% 28%
  103. [libx264 @ 0xb521c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 43% 16% 15% 3% 5% 5% 3% 5% 4%
  104. [libx264 @ 0xb521c0] i8c dc,h,v,p: 40% 10% 42% 8%
  105. [libx264 @ 0xb521c0] kb/s:497.86
  106. Received signal 2: terminating.
  107.  
  108. (I interrupted the conversion once it started)
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