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  • 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.

  • 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 ?

  • ffmpeg not setting GOP size for x264

    5 juillet 2012, par Chris Robinson

    Can someone please explain to me why the following settings :

    ffmpeg -i test.avi -vcodec libx264 -g 2 -keyint_min 1 -sc_threshold 100000000 -bf 1 test.mp4

    produces the following output :

    ffmpeg version N-41668-g564bb24 Copyright (c) 2000-2012 the FFmpeg developers
    built on Jun 17 2012 20:18:05 with gcc 4.6.3
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass --enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --ena  libavutil      51. 58.100 / 51. 58.100
     libavcodec     54. 25.100 / 54. 25.100
     libavformat    54.  6.101 / 54.  6.101
     libavdevice    54.  0.100 / 54.  0.100
     libavfilter     2. 81.100 /  2. 81.100
     libswscale      2.  1.100 /  2.  1.100
     libswresample   0. 15.100 /  0. 15.100
     libpostproc    52.  0.100 / 52.  0.100
    Input #0, avi, from 'test.avi':
     Metadata:
       encoder         : Lavf54.6.101
     Duration: 00:00:01.70, start: 0.000000, bitrate: 4258 kb/s
    Stream #0:0: Video: mpeg4 (Simple Profile) (DIVX / 0x58564944), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 29.97 tbn, 30k tbc
    Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, s16, 128 kb/s
    [buffer @ 0000000004115600] w:1280 h:720 pixfmt:yuv420p tb:1001/30000 fr:30000/1001 sar:1/1 sws_param:flags=2
    [ffmpeg_buffersink @ 00000000041157a0] No opaque field provided
    [libx264 @ 000000000411f120] using SAR=1/1
    [libx264 @ 000000000411f120] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
    [libx264 @ 000000000411f120] profile High, level 3.1
    [libx264 @ 000000000411f120] 264 - core 125 r2200 999b753 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - 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=36 lookahead_threads=6 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 keOutput #0, mp4, to 'test.mp4':
     Metadata:
       encoder         : Lavf54.6.101
       Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 30k tbn, 29.97 tbc
       Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s
    Stream mapping:
     Stream #0:0 -> #0:0 (mpeg4 -> libx264)
     Stream #0:1 -> #0:1 (mp3 -> libvo_aacenc)
    Press [q] to stop, [?] for help
    [libvo_aacenc @ 0000000001ebe240] Que input is backward in time
    Last message repeated 8 times
    frame=   35 fps=0.0 q=-1.0 Lsize=     466kB time=00:00:01.10 bitrate=3466.6kbits/s dup=1 drop=0    

    video:436kB audio:28kB global headers:0kB muxing overhead 0.558509%
    [libx264 @ 000000000411f120] frame I:1     Avg QP:24.93  size: 92398
    [libx264 @ 000000000411f120] frame P:28    Avg QP:26.82  size: 12010
    [libx264 @ 000000000411f120] frame B:6     Avg QP:30.37  size:  2764
    [libx264 @ 000000000411f120] consecutive B-frames: 74.3%  5.7%  8.6% 11.4%
    [libx264 @ 000000000411f120] mb I  I16..4: 41.5% 40.1% 18.4%
    [libx264 @ 000000000411f120] mb P  I16..4:  3.9%  1.4%  0.6%  P16..4: 14.3%  4.7%  3.2%  0.0%  0.0%    skip:72.0%
    [libx264 @ 000000000411f120] mb B  I16..4:  1.1%  0.4%  0.1%  B16..8: 14.2%  2.8%  0.6%  direct: 1.1%  skip:79.8%  L0:49.8% L1:39.5% BI:10.8%
    [libx264 @ 000000000411f120] 8x8 transform intra:29.9% inter:76.4%
    [libx264 @ 000000000411f120] coded y,uvDC,uvAC intra: 31.1% 34.4% 18.7% inter: 10.2% 6.3% 3.0%
    [libx264 @ 000000000411f120] i16 v,h,dc,p: 62% 34%  3%  0%
    [libx264 @ 000000000411f120] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 23% 38%  4%  4%  3%  3%  2%  5%
    [libx264 @ 000000000411f120] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 40% 35% 16%  1%  2%  2%  1%  1%  1%
    [libx264 @ 000000000411f120] i8c dc,h,v,p: 52% 20% 24%  3%
    [libx264 @ 000000000411f120] Weighted P-Frames: Y:0.0% UV:0.0%
    [libx264 @ 000000000411f120] ref P L0: 70.5% 10.1% 12.1%  7.3%
    [libx264 @ 000000000411f120] ref B L0: 81.1% 16.9%  2.0%
    [libx264 @ 000000000411f120] ref B L1: 89.7% 10.3%
    [libx264 @ 000000000411f120] kb/s:3050.18

    Why am I not getting an I-Frame every second frame ? Is there something else I can set to do enforce this ? If not, can you suggest how to do this using the mpeg4 codec. It's vital that I can extract what type of frame has been encoded during the encoding process and that I can set a specific GOP structure.