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  • ffmpeg : avi to mp4 (h.264/aac) - sound yes, image no

    21 février 2013, par user1711384

    working with ffmpeg at a conversion (any file to mp4 (h.264/aac)) :

    exec("ffmpeg -y -i testdatei.avi -i logo.jpg -filter_complex overlay=15:15,scale=-1:720 -c:v libx264 -profile:v baseline -preset medium -b:v 880k -g 10 -pass 1 -an -f mp4 -movflags faststart /dev/null && \ ", $output1);
    
var_dump($output1);
    
exec("ffmpeg -y -i testdatei.avi -i logo.jpg -filter_complex overlay=15:15,scale=-1:720 -c:v libx264 -profile:v baseline -preset medium -b:v 880k -g 10 -pass 2 -c:a libfdk_aac -b:a 128k -movflags faststart xxx.mp4 2>&1", $output2);
    
var_dump($output2);

    With a mpeg and wmv-file its working. With 2 differenz AVIs it didnt work, logfiles from path 1 arent generated and output1 is empty, output2 of course generates an error. After removing -profile:v baseline in both commands, the videofile is successfull generates, but its not possible to play it in jwplayer (sound yes, but no image).

    This is the content of output1 :

    array(0) {
    
}
    
array(59) {
    
  [0]=>
    
  string(83) "ffmpeg version git-2013-02-20-39b0393 Copyright (c) 2000-2013 the FFmpeg developers"
    
  [1]=>
    
  string(75) "  built on Feb 20 2013 12:06:36 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)"
    
  [2]=>
    
  string(297) "  configuration: --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3"
    
  [3]=>
    
  string(40) "  libavutil      52. 17.102 / 52. 17.102"
    
  [4]=>
    
  string(40) "  libavcodec     54. 92.100 / 54. 92.100"
    
  [5]=>
    
  string(40) "  libavformat    54. 63.100 / 54. 63.100"
    
  [6]=>
    
  string(40) "  libavdevice    54.  3.103 / 54.  3.103"
    
  [7]=>
    
  string(40) "  libavfilter     3. 38.103 /  3. 38.103"
    
  [8]=>
    
  string(40) "  libswscale      2.  2.100 /  2.  2.100"
    
  [9]=>
    
  string(40) "  libswresample   0. 17.102 /  0. 17.102"
    
  [10]=>
    
  string(40) "  libpostproc    52.  2.100 / 52.  2.100"
    
  [11]=>
    
  string(37) "[avi @ 0x23e4d80] non-interleaved AVI"
    
  [12]=>
    
  string(54) "Guessed Channel Layout for  Input Stream #0.1 : stereo"
    
  [13]=>
    
  string(36) "Input #0, avi, from 'testdatei.avi':"
    
  [14]=>
    
  string(11) "  Metadata:"
    
  [15]=>
    
  string(47) "    date            : 2013-02-21T14:06:32+01:00"
    
  [16]=>
    
  string(54) "    encoder         : Adobe Premiere Pro CS6 (Windows)"
    
  [17]=>
    
  string(61) "  Duration: 00:00:07.57, start: 0.000000, bitrate: 30330 kb/s"
    
  [18]=>
    
  string(120) "    Stream #0:0: Video: dvvideo (dvsd / 0x64737664), yuv411p, 720x480 [SAR 8:9 DAR 4:3], 29.97 tbr, 29.97 tbn, 29.97 tbc"
    
  [19]=>
    
  string(91) "    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s"
    
  [20]=>
    
  string(34) "Input #1, image2, from 'logo.jpg':"
    
  [21]=>
    
  string(54) "  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A"
    
  [22]=>
    
  string(71) "    Stream #1:0: Video: mjpeg, yuvj444p, 170x82, 25 tbr, 25 tbn, 25 tbc"
    
  [23]=>
    
  string(35) "[libx264 @ 0x23e9640] using SAR=8/9"
    
  [24]=>
    
  string(88) "[libx264 @ 0x23e9640] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX"
    
  [25]=>
    
  string(75) "[libx264 @ 0x23e9640] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit"
    
  [26]=>
    
  string(720) "[libx264 @ 0x23e9640] 264 - core 129 r2 bc13772 - 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=4 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=10 keyint_min=1 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=2pass mbtree=1 bitrate=880 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 cplxblur=20.0 qblur=0.5 ip_ratio=1.40 aq=1:1.00"
    
  [27]=>
    
  string(29) "Output #0, mp4, to 'xxx.mp4':"
    
  [28]=>
    
  string(11) "  Metadata:"
    
  [29]=>
    
  string(47) "    date            : 2013-02-21T14:06:32+01:00"
    
  [30]=>
    
  string(35) "    encoder         : Lavf54.63.100"
    
  [31]=>
    
  string(139) "    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 1080x720 [SAR 8:9 DAR 4:3], q=-1--1, pass 2, 880 kb/s, 11988 tbn, 29.97 tbc"
    
  [32]=>
    
  string(85) "    Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s"
    
  [33]=>
    
  string(15) "Stream mapping:"
    
  [34]=>
    
  string(49) "  Stream #0:0 (dvvideo) -> overlay:main (graph 0)"
    
  [35]=>
    
  string(50) "  Stream #1:0 (mjpeg) -> overlay:overlay (graph 0)"
    
  [36]=>
    
  string(42) "  scale (graph 0) -> Stream #0:0 (libx264)"
    
  [37]=>
    
  string(47) "  Stream #0:1 -> #0:1 (pcm_s16le -> libfdk_aac)"
    
  [38]=>
    
  string(31) "Press [q] to stop, [?] for help"
    
  [39]=>
    
  string(226) "frame=   79 fps=0.0 q=30.0 size=     291kB time=00:00:02.58 bitrate= 922.4kbits/s    
    
frame=  162 fps=162 q=30.0 size=     620kB time=00:00:05.33 bitrate= 952.9kbits/s    
    
Starting second pass: moving header on top of the file"
    
  [40]=>
    
  string(85) "frame=  227 fps=154 q=32766.0 Lsize=     958kB time=00:00:07.59 bitrate=1033.5kbits/s"
    
  [41]=>
    
  string(79) "video:829kB audio:120kB subtitle:0 global headers:0kB muxing overhead 0.986027%"
    
  [42]=>
    
  string(61) "[libx264 @ 0x23e9640] frame I:23    Avg QP:19.11  size: 31383"
    
  [43]=>
    
  string(61) "[libx264 @ 0x23e9640] frame P:68    Avg QP:23.91  size:  1240"
    
  [44]=>
    
  string(61) "[libx264 @ 0x23e9640] frame B:136   Avg QP:20.27  size:   310"
    
  [45]=>
    
  string(67) "[libx264 @ 0x23e9640] consecutive B-frames: 19.8%  0.9%  0.0% 79.3%"
    
  [46]=>
    
  string(53) "[libx264 @ 0x23e9640] mb I  I16..4: 18.8% 68.4% 12.8%"
    
  [47]=>
    
  string(106) "[libx264 @ 0x23e9640] mb P  I16..4:  0.3%  0.3%  0.0%  P16..4: 10.7%  2.3%  0.8%  0.0%  0.0%    skip:85.6%"
    
  [48]=>
    
  string(134) "[libx264 @ 0x23e9640] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  9.1%  0.1%  0.0%  direct: 0.1%  skip:90.7%  L0:41.2% L1:58.6% BI: 0.2%"
    
  [49]=>
    
  string(59) "[libx264 @ 0x23e9640] 8x8 transform intra:68.3% inter:97.5%"
    
  [50]=>
    
  string(80) "[libx264 @ 0x23e9640] coded y,u,v intra: 53.7% 26.9% 30.8% inter: 0.5% 0.2% 0.3%"
    
  [51]=>
    
  string(51) "[libx264 @ 0x23e9640] i16 v,h,dc,p: 70% 17%  1% 11%"
    
  [52]=>
    
  string(88) "[libx264 @ 0x23e9640] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 25% 18%  4%  3%  4%  4%  6%  8%"
    
  [53]=>
    
  string(88) "[libx264 @ 0x23e9640] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 29%  8%  4%  6%  6%  5%  5%  4%"
    
  [54]=>
    
  string(55) "[libx264 @ 0x23e9640] Weighted P-Frames: Y:0.0% UV:0.0%"
    
  [55]=>
    
  string(55) "[libx264 @ 0x23e9640] ref P L0: 75.9%  5.1% 11.3%  7.7%"
    
  [56]=>
    
  string(49) "[libx264 @ 0x23e9640] ref B L0: 96.0%  3.1%  0.9%"
    
  [57]=>
    
  string(43) "[libx264 @ 0x23e9640] ref B L1: 95.8%  4.2%"
    
  [58]=>
    
  string(33) "[libx264 @ 0x23e9640] kb/s:895.99"
    
}

    Output2 :

    array(59) {
    
  [0]=>
    
  string(83) "ffmpeg version git-2013-02-20-39b0393 Copyright (c) 2000-2013 the FFmpeg developers"
    
  [1]=>
    
  string(75) "  built on Feb 20 2013 12:06:36 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)"
    
  [2]=>
    
  string(297) "  configuration: --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3"
    
  [3]=>
    
  string(40) "  libavutil      52. 17.102 / 52. 17.102"
    
  [4]=>
    
  string(40) "  libavcodec     54. 92.100 / 54. 92.100"
    
  [5]=>
    
  string(40) "  libavformat    54. 63.100 / 54. 63.100"
    
  [6]=>
    
  string(40) "  libavdevice    54.  3.103 / 54.  3.103"
    
  [7]=>
    
  string(40) "  libavfilter     3. 38.103 /  3. 38.103"
    
  [8]=>
    
  string(40) "  libswscale      2.  2.100 /  2.  2.100"
    
  [9]=>
    
  string(40) "  libswresample   0. 17.102 /  0. 17.102"
    
  [10]=>
    
  string(40) "  libpostproc    52.  2.100 / 52.  2.100"
    
  [11]=>
    
  string(37) "[avi @ 0x23e4d80] non-interleaved AVI"
    
  [12]=>
    
  string(54) "Guessed Channel Layout for  Input Stream #0.1 : stereo"
    
  [13]=>
    
  string(36) "Input #0, avi, from 'testdatei.avi':"
    
  [14]=>
    
  string(11) "  Metadata:"
    
  [15]=>
    
  string(47) "    date            : 2013-02-21T14:06:32+01:00"
    
  [16]=>
    
  string(54) "    encoder         : Adobe Premiere Pro CS6 (Windows)"
    
  [17]=>
    
  string(61) "  Duration: 00:00:07.57, start: 0.000000, bitrate: 30330 kb/s"
    
  [18]=>
    
  string(120) "    Stream #0:0: Video: dvvideo (dvsd / 0x64737664), yuv411p, 720x480 [SAR 8:9 DAR 4:3], 29.97 tbr, 29.97 tbn, 29.97 tbc"
    
  [19]=>
    
  string(91) "    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s"
    
  [20]=>
    
  string(34) "Input #1, image2, from 'logo.jpg':"
    
  [21]=>
    
  string(54) "  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A"
    
  [22]=>
    
  string(71) "    Stream #1:0: Video: mjpeg, yuvj444p, 170x82, 25 tbr, 25 tbn, 25 tbc"
    
  [23]=>
    
  string(35) "[libx264 @ 0x23e9640] using SAR=8/9"
    
  [24]=>
    
  string(88) "[libx264 @ 0x23e9640] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX"
    
  [25]=>
    
  string(75) "[libx264 @ 0x23e9640] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit"
    
  [26]=>
    
  string(720) "[libx264 @ 0x23e9640] 264 - core 129 r2 bc13772 - 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=4 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=10 keyint_min=1 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=2pass mbtree=1 bitrate=880 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 cplxblur=20.0 qblur=0.5 ip_ratio=1.40 aq=1:1.00"
    
  [27]=>
    
  string(29) "Output #0, mp4, to 'xxx.mp4':"
    
  [28]=>
    
  string(11) "  Metadata:"
    
  [29]=>
    
  string(47) "    date            : 2013-02-21T14:06:32+01:00"
    
  [30]=>
    
  string(35) "    encoder         : Lavf54.63.100"
    
  [31]=>
    
  string(139) "    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 1080x720 [SAR 8:9 DAR 4:3], q=-1--1, pass 2, 880 kb/s, 11988 tbn, 29.97 tbc"
    
  [32]=>
    
  string(85) "    Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s"
    
  [33]=>
    
  string(15) "Stream mapping:"
    
  [34]=>
    
  string(49) "  Stream #0:0 (dvvideo) -> overlay:main (graph 0)"
    
  [35]=>
    
  string(50) "  Stream #1:0 (mjpeg) -> overlay:overlay (graph 0)"
    
  [36]=>
    
  string(42) "  scale (graph 0) -> Stream #0:0 (libx264)"
    
  [37]=>
    
  string(47) "  Stream #0:1 -> #0:1 (pcm_s16le -> libfdk_aac)"
    
  [38]=>
    
  string(31) "Press [q] to stop, [?] for help"
    
  [39]=>
    
  string(226) "frame=   79 fps=0.0 q=30.0 size=     291kB time=00:00:02.58 bitrate= 922.4kbits/s    
    
frame=  162 fps=162 q=30.0 size=     620kB time=00:00:05.33 bitrate= 952.9kbits/s    
    
Starting second pass: moving header on top of the file"
    
  [40]=>
    
  string(85) "frame=  227 fps=154 q=32766.0 Lsize=     958kB time=00:00:07.59 bitrate=1033.5kbits/s"
    
  [41]=>
    
  string(79) "video:829kB audio:120kB subtitle:0 global headers:0kB muxing overhead 0.986027%"
    
  [42]=>
    
  string(61) "[libx264 @ 0x23e9640] frame I:23    Avg QP:19.11  size: 31383"
    
  [43]=>
    
  string(61) "[libx264 @ 0x23e9640] frame P:68    Avg QP:23.91  size:  1240"
    
  [44]=>
    
  string(61) "[libx264 @ 0x23e9640] frame B:136   Avg QP:20.27  size:   310"
    
  [45]=>
    
  string(67) "[libx264 @ 0x23e9640] consecutive B-frames: 19.8%  0.9%  0.0% 79.3%"
    
  [46]=>
    
  string(53) "[libx264 @ 0x23e9640] mb I  I16..4: 18.8% 68.4% 12.8%"
    
  [47]=>
    
  string(106) "[libx264 @ 0x23e9640] mb P  I16..4:  0.3%  0.3%  0.0%  P16..4: 10.7%  2.3%  0.8%  0.0%  0.0%    skip:85.6%"
    
  [48]=>
    
  string(134) "[libx264 @ 0x23e9640] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  9.1%  0.1%  0.0%  direct: 0.1%  skip:90.7%  L0:41.2% L1:58.6% BI: 0.2%"
    
  [49]=>
    
  string(59) "[libx264 @ 0x23e9640] 8x8 transform intra:68.3% inter:97.5%"
    
  [50]=>
    
  string(80) "[libx264 @ 0x23e9640] coded y,u,v intra: 53.7% 26.9% 30.8% inter: 0.5% 0.2% 0.3%"
    
  [51]=>
    
  string(51) "[libx264 @ 0x23e9640] i16 v,h,dc,p: 70% 17%  1% 11%"
    
  [52]=>
    
  string(88) "[libx264 @ 0x23e9640] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 25% 18%  4%  3%  4%  4%  6%  8%"
    
  [53]=>
    
  string(88) "[libx264 @ 0x23e9640] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 29%  8%  4%  6%  6%  5%  5%  4%"
    
  [54]=>
    
  string(55) "[libx264 @ 0x23e9640] Weighted P-Frames: Y:0.0% UV:0.0%"
    
  [55]=>
    
  string(55) "[libx264 @ 0x23e9640] ref P L0: 75.9%  5.1% 11.3%  7.7%"
    
  [56]=>
    
  string(49) "[libx264 @ 0x23e9640] ref B L0: 96.0%  3.1%  0.9%"
    
  [57]=>
    
  string(43) "[libx264 @ 0x23e9640] ref B L1: 95.8%  4.2%"
    
  [58]=>
    
  string(33) "[libx264 @ 0x23e9640] kb/s:895.99"
    
}

    Do you have a idea, why avi makes problems ? what could be a solution ?

  • How to convert webp images to MP4 video using ffmpeg

    12 octobre 2016, par Sunny Tambi

    I have tried many possible command line options with ffmpeg, however not getting this to work. I want to convert series of webp images to a mp4 video.
    Some commands that i tried are :

    ffmpeg -i img%04d.webp out.mp4
    

    
ffmpeg -i img%04d.webp -c:v libx264 out.mp4
    

    
ffmpeg -i img%04d.webp -pix_fmt yuv420p out.mp4
    

    
ffmpeg -i img%04d.webp -c:v libx264 -pix_fmt yuv420p -crf 25 out.mp4
    

    
ffmpeg -i img%04d.webp -c:v libx264 -pix_fmt yuv420p -crf 25 -b:v 0 out.mp4

    None of them creates an mp4 video. A mp4 file, though, gets created, however it is of 0 sec. Here is a sample output of one of the execution :

    ffmpeg -i img%04d.webp -c:v libx264 -pix_fmt yuv420p -crf 25 -y out.mp4
    

    
ffmpeg version N-81045-g450cf40 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 5.4.0 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
    
libavutil      55. 28.100 / 55. 28.100
    
libavcodec     57. 50.100 / 57. 50.100
    
libavformat    57. 42.100 / 57. 42.100
    
libavdevice    57.  0.102 / 57.  0.102
    
libavfilter     6. 47.100 /  6. 47.100
    
  libswscale      4.  1.100 /  4.  1.100
    
libswresample   2.  1.100 /  2.  1.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, image2, from 'img%04d.webp':
    
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    
Stream #0:0: Video: webp, yuva420p(tv, bt470bg/unknown/unknown), 320x568, 25 tbr, 25 tbn, 25 tbc
    
[libx264 @ 00000000006dbbc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    
[libx264 @ 00000000006dbbc0] profile High, level 2.1
    
[libx264 @ 00000000006dbbc0] 264 - core 148 r2705 3f5ed56 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 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=6 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=25.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
[mp4 @ 00000000006d8700] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
    
Output #0, mp4, to 'out.mp4':
    
Metadata:
    
encoder : Lavf57.42.100
    
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 320x568, q=-1--1, 25 fps, 12800 tbn, 25 tbc
    
Metadata:
    
encoder : Lavc57.50.100 libx264
    
Side data:
    
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
Stream mapping:
    
Stream #0:0 -> #0:0 (webp (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
frame= 1 fps=0.0 q=30.0 Lsize= 3kB time=00:00:00.00 bitrate=265435.9kbits/s speed=0.011x video:2kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 44.661823%
    
[libx264 @ 00000000006dbbc0] frame I:1     Avg QP:23.37  size:  1100
    
[libx264 @ 00000000006dbbc0] mb I  I16..4: 24.4% 71.5%  4.0%
    
[libx264 @ 00000000006dbbc0] 8x8 transform intra:71.5%
    
[libx264 @ 00000000006dbbc0] coded y,uvDC,uvAC intra: 6.1% 5.4% 4.2%
    
[libx264 @ 00000000006dbbc0] i16 v,h,dc,p: 80% 14%  6%  1%
    
[libx264 @ 00000000006dbbc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 46%  5% 48%  0%  0%  0%  0%  0%  0%
    
[libx264 @ 00000000006dbbc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 20% 42%  2%  2%  2%  2%  2%  3%
    
[libx264 @ 00000000006dbbc0] i8c dc,h,v,p: 89%  9%  1%  0%
    
[libx264 @ 00000000006dbbc0] kb/s:220.00

    Excerpt from the above :

    frame=1 
    
fps=0.0
    
time=00:00:00.00
    
video:2kB

    This should give the idea of what I am trying to say.

    Need help if someone can tell how to convert a series of webp images to MP4 video.

  • Using libav-tools versus libav built from source - video quality much worse

    17 juin 2015, par kislo

    We are trying to create a video from still images, running on Ubuntu 14.04.

    If we have installed libav-tools then the output video is much higher quality than if we have installed libav manually. Unfortunately, we need to run a solution where libav is built from source, so we want to find out how to improve the quality.

    Here is the console output for the libav-tools (higher quality) :

    avconv version 9.18-6:9.18-0ubuntu0.14.04.1, Copyright (c) 2000-2014 the Libav developers
    
  built on Mar 16 2015 13:19:10 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
    
[image2 @ 0x22ae120] max_analyze_duration reached
    
Input #0, image2, from 'frame.%04d.jpg':
    
  Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
    
    Stream #0.0: Video: mjpeg, yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], 8 fps, 8 tbr, 8 tbn
    
[libx264 @ 0x22afac0] using SAR=1/1
    
[libx264 @ 0x22afac0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
    
[libx264 @ 0x22afac0] profile High, level 3.1
    
[libx264 @ 0x22afac0] 264 - core 142 r2389 956c8d8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=6 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=8 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=1.25 aq=1:1.00
    
Output #0, mp4, to 'a1.mp4':
    
  Metadata:
    
    encoder         : Lavf54.20.4
    
    Stream #0.0: Video: libx264, yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], q=-1--1, 8 tbn, 8 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg -> libx264)
    
Press ctrl-c to stop encoding
    
frame=  159 fps= 43 q=32766.0 Lsize=    1580kB time=19.62 bitrate= 659.3kbits/s    
    
video:607kB audio:0kB global headers:0kB muxing overhead 160.388953%
    
[libx264 @ 0x22afac0] frame I:21    Avg QP:14.32  size: 21142
    
[libx264 @ 0x22afac0] frame P:132   Avg QP:16.12  size:  8691
    
[libx264 @ 0x22afac0] frame B:6     Avg QP:13.61  size:  3874
    
[libx264 @ 0x22afac0] consecutive B-frames: 95.0%  0.0%  0.0%  5.0%
    
[libx264 @ 0x22afac0] mb I  I16..4: 37.4% 61.4%  1.2%
    
[libx264 @ 0x22afac0] mb P  I16..4:  9.1% 19.2%  0.3%  P16..4:  6.2%  2.8%  1.3%  0.0%  0.0%    skip:61.1%
    
[libx264 @ 0x22afac0] mb B  I16..4:  1.8%  2.0%  0.0%  B16..8: 31.9%  7.1%  0.7%  direct: 9.2%  skip:47.3%  L0:69.8% L1:29.5% BI: 0.8%
    
[libx264 @ 0x22afac0] 8x8 transform intra:65.0% inter:92.8%
    
[libx264 @ 0x22afac0] coded y,uvDC,uvAC intra: 36.3% 31.8% 7.1% inter: 3.6% 6.0% 0.7%
    
[libx264 @ 0x22afac0] i16 v,h,dc,p: 74% 14%  6%  6%
    
[libx264 @ 0x22afac0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 24% 32%  5%  2%  3%  2%  1%  3%
    
[libx264 @ 0x22afac0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 51% 23%  9%  2%  3%  6%  3%  1%  2%
    
[libx264 @ 0x22afac0] i8c dc,h,v,p: 52% 20% 25%  2%
    
[libx264 @ 0x22afac0] Weighted P-Frames: Y:6.8% UV:6.1%
    
[libx264 @ 0x22afac0] ref P L0: 58.1%  6.2% 12.1% 22.6%  0.9%
    
[libx264 @ 0x22afac0] ref B L0: 83.0% 16.3%  0.7%
    
[libx264 @ 0x22afac0] ref B L1: 93.5%  6.5%
    
[libx264 @ 0x22afac0] kb/s:649.85

    Here is the console output for libav built manually (lower quality) :

    avconv version 11.4, Copyright (c) 2000-2014 the Libav developers
    
  built on Jun 17 2015 02:19:28 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
    
[image2 @ 0x329f140] max_analyze_duration 5000000 reached
    
Input #0, image2, from 'frame.%04d.jpg':
    
  Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
    
    Stream #0.0: Video: mjpeg, yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], 8 fps, 8 tbn
    
Output #0, mp4, to 'a2.mp4':
    
  Metadata:
    
    encoder         : Lavf56.1.0
    
    Stream #0.0: Video: mpeg4, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 8 fps, 8 tbn, 8 tbc
    
    Metadata:
    
      encoder         : Lavc56.1.0 mpeg4
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> mpeg4 (native))
    
Press ctrl-c to stop encoding
    
frame=  159 fps=  0 q=31.0 Lsize=     902kB time=19.75 bitrate= 374.2kbits/s    
    
video:900kB audio:0kB other streams:0kB global headers:0kB muxing overhead: 0.239928%

    In case it helps : the images are named frame.0000.jpg, frame.0001.jpg, etc., so our command is :
    avconv -y -f image2 -r 8 -i frame.%04d.jpg -vf "setpts=2*PTS" videofile.mp4 for both runs shown above. Any help would be hugely appreciated !

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