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  1. command:
  2.  
  3. ffmpeg -i $i -vcodec libx264 -preset slow -crf 14 -acodec libfaac -aq 100 -s 640x360 ${i%.*}-slow-start.mp4
  4. qt-faststart ${i%.*}-slow-start.mp4 ${i%.*}.mp4
  5. rm ${i%.*}-slow-start.mp4
  6.  
  7. output:
  8.  
  9. ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers
  10. built on Mar 17 2012 18:39:31 with gcc 4.2.1 (Apple Inc. build 5666) (dot 3)
  11. configuration: --prefix=/Volumes/tempdisk/sw --enable-gpl --enable-pthreads --enable-version3 --enable-nonfree --disable-ffplay --disable-ffserver --enable-libvpx --disable-decoder=libvpx --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-libxavs --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-zlib --enable-filters --arch=x86 --enable-runtime-cpudetect
  12. libavutil 51. 35.100 / 51. 35.100
  13. libavcodec 53. 61.100 / 53. 61.100
  14. libavformat 53. 32.100 / 53. 32.100
  15. libavdevice 53. 4.100 / 53. 4.100
  16. libavfilter 2. 61.100 / 2. 61.100
  17. libswscale 2. 1.100 / 2. 1.100
  18. libswresample 0. 6.100 / 0. 6.100
  19. libpostproc 52. 0.100 / 52. 0.100
  20. Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './ORIN1203_INTEL_BIV_H264_English.mov':
  21. Metadata:
  22. major_brand : qt
  23. minor_version : 537199360
  24. compatible_brands: qt
  25. creation_time : 2012-04-19 18:50:15
  26. Duration: 00:00:35.00, start: 0.000000, bitrate: 5906 kb/s
  27. Stream #0:0(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 118 kb/s
  28. Metadata:
  29. creation_time : 2012-04-19 18:50:15
  30. handler_name : ?Apple Alias Data Handler
  31. Stream #0:1(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720, 5782 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
  32. Metadata:
  33. creation_time : 2012-04-19 18:50:15
  34. handler_name : ?Apple Alias Data Handler
  35. [buffer @ 0x101712140] w:1280 h:720 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
  36. [scale @ 0x1017192a0] w:1280 h:720 fmt:yuv420p -> w:640 h:360 fmt:yuv420p flags:0x4
  37. [libx264 @ 0x10186c000] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
  38. [libx264 @ 0x10186c000] profile High, level 3.0
  39. [libx264 @ 0x10186c000] 264 - core 122 r2183 c522ad1 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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=12 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=crf mbtree=1 crf=14.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  40. Output #0, mp4, to './ORIN1203_INTEL_BIV_H264_English-slow-start.mp4':
  41. Metadata:
  42. major_brand : qt
  43. minor_version : 537199360
  44. compatible_brands: qt
  45. creation_time : 2012-04-19 18:50:15
  46. encoder : Lavf53.32.100
  47. Stream #0:0(eng): Video: h264 (![0][0][0] / 0x0021), yuv420p, 640x360, q=-1--1, 25 tbn, 25 tbc
  48. Metadata:
  49. creation_time : 2012-04-19 18:50:15
  50. handler_name : ?Apple Alias Data Handler
  51. Stream #0:1(eng): Audio: aac (@[0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s
  52. Metadata:
  53. creation_time : 2012-04-19 18:50:15
  54. handler_name : ?Apple Alias Data Handler
  55. Stream mapping:
  56. Stream #0:1 -> #0:0 (h264 -> libx264)
  57. Stream #0:0 -> #0:1 (aac -> libfaac)
  58. Press [q] to stop, [?] for help
  59. [h264 @ 0x10347b200] Increasing reorder buffer to 1
  60. frame= 68 fps= 0 q=19.0 size= 43kB time=00:00:00.00 bitrate= 0.0kbits/frame= 119 fps=119 q=19.0 size= 362kB time=00:00:02.04 bitrate=1455.3kbits/frame= 168 fps=112 q=19.0 size= 717kB time=00:00:04.00 bitrate=1467.9kbits/frame= 208 fps=104 q=19.0 size= 1046kB time=00:00:05.60 bitrate=1530.2kbits/frame= 255 fps=102 q=19.0 size= 1389kB time=00:00:07.48 bitrate=1520.9kbits/frame= 305 fps=101 q=19.0 size= 1722kB time=00:00:09.48 bitrate=1487.8kbits/frame= 345 fps= 98 q=19.0 size= 2012kB time=00:00:11.08 bitrate=1487.6kbits/frame= 394 fps= 98 q=19.0 size= 2527kB time=00:00:13.04 bitrate=1587.7kbits/frame= 470 fps=104 q=19.0 size= 2890kB time=00:00:16.08 bitrate=1472.4kbits/frame= 547 fps=109 q=19.0 size= 3226kB time=00:00:19.16 bitrate=1379.4kbits/frame= 630 fps=114 q=19.0 size= 3633kB time=00:00:22.48 bitrate=1323.8kbits/frame= 730 fps=121 q=19.0 size= 4044kB time=00:00:26.48 bitrate=1251.2kbits/frame= 839 fps=129 q=19.0 size= 4386kB time=00:00:30.84 bitrate=1165.0kbits/frame= 875 fps=131 q=32766.0 Lsize= 4463kB time=00:00:34.92 bitrate=1046.9kbits/s dup=1 drop=0
  61. video:3927kB audio:508kB global headers:0kB muxing overhead 0.612052%
  62. [libx264 @ 0x10186c000] frame I:5 Avg QP: 7.31 size: 29836
  63. [libx264 @ 0x10186c000] frame P:255 Avg QP:14.09 size: 10068
  64. [libx264 @ 0x10186c000] frame B:615 Avg QP:19.77 size: 2121
  65. [libx264 @ 0x10186c000] consecutive B-frames: 3.4% 4.1% 13.4% 79.1%
  66. [libx264 @ 0x10186c000] mb I I16..4: 52.2% 18.4% 29.4%
  67. [libx264 @ 0x10186c000] mb P I16..4: 2.5% 3.8% 2.1% P16..4: 12.1% 11.3% 11.5% 0.0% 0.0% skip:56.7%
  68. [libx264 @ 0x10186c000] mb B I16..4: 0.2% 0.2% 0.3% B16..8: 14.9% 5.4% 1.9% direct: 3.0% skip:74.1% L0:35.0% L1:38.0% BI:27.0%
  69. [libx264 @ 0x10186c000] 8x8 transform intra:38.8% inter:49.3%
  70. [libx264 @ 0x10186c000] direct mvs spatial:95.6% temporal:4.4%
  71. [libx264 @ 0x10186c000] coded y,uvDC,uvAC intra: 56.9% 61.2% 56.4% inter: 9.5% 12.6% 9.8%
  72. [libx264 @ 0x10186c000] i16 v,h,dc,p: 57% 30% 4% 9%
  73. [libx264 @ 0x10186c000] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 27% 12% 5% 5% 6% 7% 6% 8%
  74. [libx264 @ 0x10186c000] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 22% 13% 5% 7% 7% 8% 6% 8%
  75. [libx264 @ 0x10186c000] i8c dc,h,v,p: 52% 19% 20% 9%
  76. [libx264 @ 0x10186c000] Weighted P-Frames: Y:0.4% UV:0.4%
  77. [libx264 @ 0x10186c000] ref P L0: 67.7% 9.1% 12.3% 5.7% 4.5% 0.7%
  78. [libx264 @ 0x10186c000] ref B L0: 87.1% 9.2% 3.0% 0.7%
  79. [libx264 @ 0x10186c000] ref B L1: 95.7% 4.3%
  80. [libx264 @ 0x10186c000] kb/s:919.05
  81. ftyp 0 32
  82. free 32 8
  83. mdat 40 4541905
  84. moov 4541945 27791
  85. patching stco atom...
  86. patching stco atom...
  87. writing ftyp atom...
  88. writing moov atom...
  89. copying rest of file...
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