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• cmdutils : Only do the windows-specific commandline parsing on _WIN32

  7 août 2013, par Diogo Franco

  cmdutils : Only do the windows-specific commandline parsing on _WIN32
  Fixes commandline parsing on Cygwin (on 64 bit, and on very recent
  
  32 bit), where the configure check does find the CommandLineToArgvW
  
  function (since it exists in the link libraries and in the headers),
  
  but whose GetCommandLineW() only returns the application’s path.
  
  (This is due to a cygwin internal optimization, see
  
  http://cygwin.com/ml/cygwin/2013-07/msg00538.html for details.)
  
  Arguments are only given through main’s argc/argv, and they’re already
  
  UTF-8.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] cmdutils.c

• cmdutils : Only do the windows-specific commandline parsing on _WIN32

  7 août 2013, par Diogo Franco

  cmdutils : Only do the windows-specific commandline parsing on _WIN32
  Fixes commandline parsing on Cygwin (on 64 bit, and on very recent
  
  32 bit), where the configure check does find the CommandLineToArgvW
  
  function (since it exists in the link libraries and in the headers),
  
  but whose GetCommandLineW() only returns the application’s path.
  
  (This is due to a cygwin internal optimization, see
  
  http://cygwin.com/ml/cygwin/2013-07/msg00538.html for details.)
  
  Arguments are only given through main’s argc/argv, and they’re already
  
  UTF-8.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DH] cmdutils.c

• webm to mp4 conversion using ffmpeg

  2 décembre 2015, par Pavan K

  When I try to convert a webm file to mp4 the output is very very choppy and it appears as if many frames have been dropped by ffmpeg

  I used the following commands to convert

  ffmpeg -i movie.webm movie.mp4
  
  ffmpeg -i movie.webm -vcodec libx264 movie.mp4
  
  ffmpeg -i movie.webm -vcodec libx264 -qscale 0 movie.mp4

  All of them have the same problem. When I use ffprobe it seems to show the frames more or less properly.

  UPDATE :

   built on Jun 14 2013 14:31:50 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1)
  
    configuration: --prefix=/home/user2/ffmpeg_build --extra-cflags=-I/home/user2/ffmpeg_build/include --extra-ldflags=-L/home/pavan4/ffmpeg_build/lib --bindir=/home/pavan4/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
  
    libavutil      52. 35.101 / 52. 35.101
  
    libavcodec     55. 16.100 / 55. 16.100
  
    libavformat    55.  8.102 / 55.  8.102
  
    libavdevice    55.  2.100 / 55.  2.100
  
    libavfilter     3. 77.101 /  3. 77.101
  
    libswscale      2.  3.100 /  2.  3.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Hyper fast Audio and Video encoder
  
  usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
  
  
  
  Use -h to get full help or, even better, run 'man ffmpeg'
  
  
  
  Input #0, matroska,webm, from '1.webm':
  
    Duration: 00:00:10.64, start: 0.000000, bitrate: 5024 kb/s
  
      Stream #0:0(eng): Video: vp8, yuv420p, 1280x720, SAR 1:1 DAR 16:9, 1k fps, 1k tbr, 1k tbn, 1k tbc (default)
  
  [libx264 @ 0x1d966a0] using SAR=1/1
  
  [libx264 @ 0x1d966a0] MB rate (3600000) > level limit (2073600)
  
  [libx264 @ 0x1d966a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
  [libx264 @ 0x1d966a0] profile High, level 5.2
  
  [libx264 @ 0x1d966a0] 264 - core 133 r2 a3ac64b - 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=-2 threads=12 lookahead_threads=2 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
  
  Output #0, mp4, to '1_conv4.mp4':
  
    Metadata:
  
      encoder         : Lavf55.8.102
  
      Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 16k tbn, 1k tbc (default)
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (vp8 -> libx264)
  
  Press [q] to stop, [?] for help
  
  frame=  168 fps=0.0 q=33.0 size=      62kB time=00:00:00.11 bitrate=4606.0kbits/frame=  293 fps=230 q=33.0 size=     138kB time=00:00:00.23 bitrate=4809.7kbits/
  
  
  
  video:5620kB audio:0kB subtitle:0 global headers:0kB muxing overhead 2.212461%
  
  [libx264 @ 0x1d966a0] frame I:46    Avg QP:18.50  size: 39849
  
  [libx264 @ 0x1d966a0] frame P:2940  Avg QP:18.27  size:  1222
  
  [libx264 @ 0x1d966a0] frame B:7651  Avg QP:17.68  size:    43
  
  [libx264 @ 0x1d966a0] consecutive B-frames:  4.0%  0.2%  0.3% 95.5%
  
  [libx264 @ 0x1d966a0] mb I  I16..4: 19.9% 63.2% 16.9%
  
  [libx264 @ 0x1d966a0] mb P  I16..4:  0.2%  0.5%  0.1%  P16..4:  3.9%  1.1%  0.6%  0.0%  0.0%    skip:93.6%
  
  [libx264 @ 0x1d966a0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.2%  0.0%  0.0%  direct: 0.0%  skip:99.8%  L0:25.1% L1:74.9% BI: 0.0%
  
  [libx264 @ 0x1d966a0] 8x8 transform intra:63.6% inter:75.9%
  
  [libx264 @ 0x1d966a0] coded y,uvDC,uvAC intra: 61.5% 53.4% 24.4% inter: 0.5% 0.5% 0.0%
  
  [libx264 @ 0x1d966a0] i16 v,h,dc,p: 52% 19% 19% 11%
  
  [libx264 @ 0x1d966a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 17% 13%  4%  6%  9%  5%  8%  6%
  
  [libx264 @ 0x1d966a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 18% 14%  5%  8% 10%  6%  6%  3%
  
  [libx264 @ 0x1d966a0] i8c dc,h,v,p: 55% 17% 24%  4%
  
  [libx264 @ 0x1d966a0] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x1d966a0] ref P L0: 82.5% 13.2%  4.0%  0.3%
  
  [libx264 @ 0x1d966a0] ref B L0: 60.2% 39.2%  0.6%
  
  [libx264 @ 0x1d966a0] ref B L1: 98.5%  1.5%
  
  [libx264 @ 0x1d966a0] kb/s:4327.77