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• -shortest is not working while looping audio with amovie in FFMPEG

  18 juin 2019, par Nikunj Paradva

  Here input is two video total 40 second, i am concate that and speed up 4x,then video duration is 10 second,

  audio input duration is dynamic it ll be shorter than video or bigger than video duration that’s why i am using amovie command for replace audio with looping to infinite, and add -shortest command at last.

  but it won’t be worked. it goes to infinite process.

  Here is my command

  [-y,
  
   -i, /storage/emulated/0/Received/VID-20190407-WA0001.mp4,
  
   -i, /storage/emulated/0/Received/MP4_20190220_114210.mp4,
  
   -strict, experimental,
  
   -filter_complex, [0:v]scale=iw*min(480/iw\,480/ih):ih*min(480/iw\,480/ih), pad=480:480:(480-iw*min(480/iw\,480/ih))/2:(480-ih*min(480/iw\,480/ih))/2,setsar=1:1[v0];
  
                    [1:v]scale=iw*min(480/iw\,480/ih):ih*min(480/iw\,480/ih), pad=480:480:(480-iw*min(480/iw\,480/ih))/2:(480-ih*min(480/iw\,480/ih))/2,setsar=1:1[v1];
  
                    [v0][v1] concat=n=2:v=1[vTemp];[vTemp]setpts=0.25*PTS[finalv];
  
                    amovie=/storage/emulated/0/VideoEditor/.caches/Video_editor_1560762451434.mp3:loop=0,asetpts=N/SR/TB[aaa],
  
    -map, [finalv], -map, [aaa],
  
   -shortest, -preset, ultrafast,
  
   /storage/emulated/0/Video_1560762463583.mp4]

  here is logs of the process (logs going to infinity, but i added till stackoverflow limit)

  06-17 17:14:58.408 E: onProgress: ffmpeg version n4.0-39-gda39990 Copyright (c) 2000-2018 the FFmpeg developers
  
  06-17 17:14:58.408 E: onProgress:   built with gcc 4.9.x (GCC) 20150123 (prerelease)
  
  06-17 17:14:58.408 E: onProgress:   configuration: --target-os=linux --cross-prefix=/root/bravobit/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/root/bravobit/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-ffprobe --enable-libopus --enable-libvorbis --enable-libfdk-aac --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-libvpx --enable-libass --enable-yasm --enable-pthreads --disable-debug --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-linux-perf --disable-doc --disable-shared --enable-static --enable-runtime-cpudetect --enable-nonfree --enable-network --enable-avresample --enable-avformat --enable-avcodec --enable-indev=lavfi --enable-hwaccels --enable-ffmpeg --enable-zlib --enable-gpl --enable-small --enable-nonfree --pkg-config=pkg-config --pkg-config-flags=--static --prefix=/root/bravobit/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/root/bravobit/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/root/bravobit/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-cxxflags=
  
  06-17 17:14:58.408 E: onProgress:   libavutil      56. 14.100 / 56. 14.100
  
  06-17 17:14:58.409 E: onProgress:   libavcodec     58. 18.100 / 58. 18.100
  
  06-17 17:14:58.409 E: onProgress:   libavformat    58. 12.100 / 58. 12.100
  
  06-17 17:14:58.409 E: onProgress:   libavdevice    58.  3.100 / 58.  3.100
  
  06-17 17:14:58.409 E: onProgress:   libavfilter     7. 16.100 /  7. 16.100
  
  06-17 17:14:58.409 E: onProgress:   libavresample   4.  0.  0 /  4.  0.  0
  
  06-17 17:14:58.409 E: onProgress:   libswscale      5.  1.100 /  5.  1.100
  
  06-17 17:14:58.409 E: onProgress:   libswresample   3.  1.100 /  3.  1.100
  
  06-17 17:14:58.409 E: onProgress:   libpostproc    55.  1.100 / 55.  1.100
  
  06-17 17:14:58.472 E: getSlotFromBufferLocked: unknown buffer: 0x97c4b740
  
  06-17 17:14:58.563 E: onProgress: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Received/VID-20190407-WA0001.mp4':
  
  06-17 17:14:58.563 E: onProgress:   Metadata:
  
  06-17 17:14:58.563 E: onProgress:     major_brand     : isom
  
  06-17 17:14:58.564 E: onProgress:     minor_version   : 512
  
  06-17 17:14:58.564 E: onProgress:     compatible_brands: isomiso2avc1mp41
  
  06-17 17:14:58.564 E: onProgress:     encoder         : Lavf57.76.100
  
  06-17 17:14:58.565 E: onProgress:     comment         : vid:v0701dd10000bi84903a28j16o847fp0
  
  06-17 17:14:58.565 E: onProgress:   Duration: 00:00:17.35, start: 0.000000, bitrate: 468 kb/s
  
  06-17 17:14:58.566 E: onProgress:     Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p, 480x854, 362 kb/s, 25.08 fps, 25.08 tbr, 90k tbn, 50.20 tbc (default)
  
  06-17 17:14:58.566 E: onProgress:     Metadata:
  
  06-17 17:14:58.567 E: onProgress:       handler_name    : VideoHandler
  
  06-17 17:14:58.567 E: onProgress:     Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
  
  06-17 17:14:58.569 E: onProgress:     Metadata:
  
  06-17 17:14:58.569 E: onProgress:       handler_name    : SoundHandler
  
  06-17 17:14:58.654 E: onProgress: Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Received/MP4_20190220_114210.mp4':
  
  06-17 17:14:58.654 E: onProgress:   Metadata:
  
  06-17 17:14:58.655 E: onProgress:     major_brand     : iso6
  
  06-17 17:14:58.655 E: onProgress:     minor_version   : 1
  
  06-17 17:14:58.655 E: onProgress:     compatible_brands: mp42iso6avc1isom
  
  06-17 17:14:58.655 E: onProgress:     creation_time   : 2019-02-20T06:12:15.000000Z
  
  06-17 17:14:58.656 E: onProgress:   Duration: 00:00:23.46, start: 0.000000, bitrate: 309 kb/s
  
  06-17 17:14:58.656 E: onProgress:     Stream #1:0(und): Video: h264 (avc1 / 0x31637661), yuv420p, 426x426, 243 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default)
  
  06-17 17:14:58.656 E: onProgress:     Stream #1:1(eng): Audio: aac (mp4a / 0x6134706D), 32000 Hz, stereo, fltp, 64 kb/s (default)
  
  06-17 17:14:58.687 E: onProgress: Stream mapping:
  
  06-17 17:14:58.687 E: onProgress:   Stream #0:0 (h264) -> scale
  
  06-17 17:14:58.687 E: onProgress:   Stream #1:0 (h264) -> scale
  
  06-17 17:14:58.687 E: onProgress:   setpts -> Stream #0:0 (libx264)
  
  06-17 17:14:58.687 E: onProgress:   asetpts -> Stream #0:1 (aac)
  
  06-17 17:14:58.688 E: onProgress: Press [q] to stop, [?] for help
  
  06-17 17:14:58.828 E: onProgress: [libx264 @ 0xb53de280] using SAR=1/1
  
  06-17 17:14:58.851 E: onProgress: [libx264 @ 0xb53de280] using cpu capabilities: ARMv6 NEON
  
  06-17 17:14:58.865 E: onProgress: [libx264 @ 0xb53de280] profile Constrained Baseline, level 3.0
  
  06-17 17:14:58.865 E: onProgress: [libx264 @ 0xb53de280] 264 - core 152 r2851M ba24899 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=1 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=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
  
  06-17 17:14:58.899 E: onProgress: Output #0, mp4, to '/storage/emulated/0/VideoEditor/Video_editor_1560771898152.mp4':
  
  06-17 17:14:58.900 E: onProgress:   Metadata:
  
  06-17 17:14:58.900 E: onProgress:     major_brand     : isom
  
  06-17 17:14:58.900 E: onProgress:     minor_version   : 512
  
  06-17 17:14:58.900 E: onProgress:     compatible_brands: isomiso2avc1mp41
  
  06-17 17:14:58.900 E: onProgress:     comment         : vid:v0701dd10000bi84903a28j16o847fp0
  
  06-17 17:14:58.900 E: onProgress:     encoder         : Lavf58.12.100
  
  06-17 17:14:58.900 E: onProgress:     Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 480x480 [SAR 1:1 DAR 1:1], q=-1--1, 25.08 fps, 19264 tbn, 25.08 tbc (default)
  
  06-17 17:14:58.901 E: onProgress:     Metadata:
  
  06-17 17:14:58.901 E: onProgress:       encoder         : Lavc58.18.100 libx264
  
  06-17 17:14:58.901 E: onProgress:     Side data:
  
  06-17 17:14:58.902 E: onProgress:       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
  06-17 17:14:58.902 E: onProgress:     Stream #0:1: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
  
  06-17 17:14:58.903 E: onProgress:     Metadata:
  
  06-17 17:14:58.903 E: onProgress:       encoder         : Lavc58.18.100 aac
  
  06-17 17:14:58.905 E: onProgress: [mp3float @ 0xb386d400] Could not update timestamps for skipped samples.
  
  06-17 17:14:59.242 E: onProgress: frame=    5 fps=0.0 q=0.0 size=       0kB time=00:00:00.09 bitrate=   4.1kbits/s dup=0 drop=3 speed=0.183x    
  
  06-17 17:14:59.727 E: onProgress: frame=   11 fps= 11 q=23.0 size=       0kB time=00:00:00.30 bitrate=   1.3kbits/s dup=0 drop=20 speed=0.294x    
  
  06-17 17:15:00.240 E: onProgress: frame=   16 fps= 10 q=23.0 size=       0kB time=00:00:00.53 bitrate=   0.7kbits/s dup=0 drop=36 speed=0.349x    
  
  06-17 17:15:00.764 E: onProgress: frame=   22 fps= 11 q=23.0 size=       0kB time=00:00:00.78 bitrate=   0.5kbits/s dup=0 drop=54 speed=0.382x    
  
  06-17 17:15:01.264 E: onProgress: frame=   28 fps= 11 q=20.0 size=       0kB time=00:00:00.99 bitrate=   0.4kbits/s dup=0 drop=73 speed=0.389x    
  
  06-17 17:15:01.779 E: onProgress: frame=   34 fps= 11 q=24.0 size=       0kB time=00:00:01.25 bitrate=   0.3kbits/s dup=0 drop=90 speed=0.409x    
  
  06-17 17:15:02.277 E: onProgress: frame=   40 fps= 11 q=25.0 size=       0kB time=00:00:01.46 bitrate=   0.3kbits/s dup=0 drop=108 speed=0.409x    
  
  06-17 17:15:02.799 E: onProgress: frame=   46 fps= 11 q=24.0 size=     256kB time=00:00:01.71 bitrate=1220.7kbits/s dup=0 drop=125 speed=0.42x    
  
  06-17 17:15:03.303 E: onProgress: frame=   52 fps= 11 q=24.0 size=     256kB time=00:00:01.95 bitrate=1075.4kbits/s dup=0 drop=143 speed=0.424x    
  
  06-17 17:15:03.807 E: onProgress: frame=   58 fps= 11 q=22.0 size=     256kB time=00:00:02.18 bitrate= 961.0kbits/s dup=0 drop=161 speed=0.427x    
  
  06-17 17:15:04.316 E: onProgress: frame=   64 fps= 11 q=23.0 size=     256kB time=00:00:02.41 bitrate= 868.6kbits/s dup=0 drop=179 speed=0.43x    
  
  06-17 17:15:04.824 E: onProgress: frame=   69 fps= 11 q=22.0 size=     256kB time=00:00:02.67 bitrate= 785.5kbits/s dup=0 drop=196 speed=0.436x    
  
  06-17 17:15:05.338 E: onProgress: frame=   76 fps= 11 q=25.0 size=     256kB time=00:00:02.90 bitrate= 722.7kbits/s dup=0 drop=215 speed=0.438x    
  
  06-17 17:15:05.838 E: onProgress: frame=   82 fps= 11 q=23.0 size=     256kB time=00:00:03.13 bitrate= 669.1kbits/s dup=0 drop=233 speed=0.439x    
  
  06-17 17:15:06.354 E: onProgress: frame=   88 fps= 11 q=21.0 size=     512kB time=00:00:03.36 bitrate=1245.9kbits/s dup=0 drop=251 speed=0.44x    
  
  06-17 17:15:06.885 E: onProgress: frame=   94 fps= 12 q=17.0 size=     512kB time=00:00:03.62 bitrate=1158.0kbits/s dup=0 drop=269 speed=0.444x    
  
  06-17 17:15:07.367 E: onProgress: frame=   99 fps= 11 q=16.0 size=     512kB time=00:00:03.83 bitrate=1094.8kbits/s dup=0 drop=285 speed=0.442x    
  
  06-17 17:15:07.875 E: onProgress: frame=  105 fps= 11 q=16.0 size=     512kB time=00:00:04.06 bitrate=1032.3kbits/s dup=0 drop=302 speed=0.443x    
  
  06-17 17:15:08.390 E: onProgress: frame=  111 fps= 11 q=15.0 size=     512kB time=00:00:04.29 bitrate= 976.5kbits/s dup=0 drop=320 speed=0.443x    
  
  06-17 17:15:08.895 E: onProgress: frame=  117 fps= 11 q=21.0 size=     512kB time=00:00:04.55 bitrate= 921.7kbits/s dup=0 drop=337 speed=0.446x    
  
  06-17 17:15:09.402 E: onProgress: frame=  123 fps= 11 q=21.0 size=     512kB time=00:00:04.78 bitrate= 876.9kbits/s dup=0 drop=355 speed=0.447x    
  
  06-17 17:15:09.925 E: onProgress: frame=  129 fps= 11 q=23.0 size=     512kB time=00:00:05.03 bitrate= 832.5kbits/s dup=0 drop=373 speed=0.449x    
  
  06-17 17:15:10.426 E: onProgress: frame=  135 fps= 12 q=23.0 size=     512kB time=00:00:05.27 bitrate= 795.8kbits/s dup=0 drop=389 speed=0.449x    
  
  06-17 17:15:10.927 E: onProgress: frame=  141 fps= 12 q=23.0 size=     768kB time=00:00:05.50 bitrate=1143.3kbits/s dup=0 drop=407 speed=0.45x    
  
  06-17 17:15:11.442 E: onProgress: frame=  148 fps= 12 q=23.0 size=     768kB time=00:00:05.75 bitrate=1092.6kbits/s dup=0 drop=425 speed=0.452x    
  
  06-17 17:15:11.813 E: onProgress: [mp3float @ 0xb386d400] Could not update timestamps for skipped samples.
  
  06-17 17:15:11.947 E: onProgress: frame=  154 fps= 12 q=22.0 size=     768kB time=00:00:06.01 bitrate=1046.2kbits/s dup=0 drop=442 speed=0.454x    
  
  06-17 17:15:12.447 E: onProgress: frame=  158 fps= 11 q=22.0 size=     768kB time=00:00:06.17 bitrate=1018.7kbits/s dup=0 drop=453 speed=0.449x    
  
  06-17 17:15:12.961 E: onProgress: frame=  164 fps= 11 q=22.0 size=     768kB time=00:00:06.43 bitrate= 978.2kbits/s dup=0 drop=470 speed=0.451x    
  
  06-17 17:15:13.520 E: onProgress: frame=  170 fps= 11 q=23.0 size=     768kB time=00:00:06.66 bitrate= 944.1kbits/s dup=0 drop=487 speed=0.45x    
  
  06-17 17:15:13.993 E: onProgress: frame=  176 fps= 12 q=23.0 size=     768kB time=00:00:06.89 bitrate= 912.3kbits/s dup=0 drop=505 speed=0.451x    
  
  06-17 17:15:14.496 E: onProgress: frame=  182 fps= 12 q=24.0 size=    1024kB time=00:00:07.15 bitrate=1173.0kbits/s dup=0 drop=523 speed=0.453x    
  
  06-17 17:15:14.999 E: onProgress: frame=  189 fps= 12 q=22.0 size=    1024kB time=00:00:07.40 bitrate=1132.6kbits/s dup=0 drop=541 speed=0.454x    
  
  06-17 17:15:15.528 E: onProgress: frame=  195 fps= 12 q=23.0 size=    1024kB time=00:00:07.68 bitrate=1091.5kbits/s dup=0 drop=559 speed=0.457x    
  
  06-17 17:15:16.054 E: onProgress: frame=  202 fps= 12 q=19.0 size=    1024kB time=00:00:07.94 bitrate=1056.4kbits/s dup=0 drop=578 speed=0.458x    
  
  06-17 17:15:16.566 E: onProgress: frame=  209 fps= 12 q=18.0 size=    1024kB time=00:00:08.19 bitrate=1023.5kbits/s dup=0 drop=597 speed=0.459x    
  
  06-17 17:15:17.075 E: onProgress: frame=  215 fps= 12 q=23.0 size=    1024kB time=00:00:08.45 bitrate= 992.5kbits/s dup=0 drop=615 speed=0.46x    
  
  06-17 17:15:17.602 E: onProgress: frame=  221 fps= 12 q=18.0 size=    1280kB time=00:00:08.73 bitrate=1201.1kbits/s dup=0 drop=633 speed=0.462x    
  
  06-17 17:15:18.120 E: onProgress: frame=  228 fps= 12 q=21.0 size=    1280kB time=00:00:08.98 bitrate=1166.9kbits/s dup=0 drop=652 speed=0.463x    
  
  06-17 17:15:18.635 E: onProgress: frame=  235 fps= 12 q=22.0 size=    1280kB time=00:00:09.24 bitrate=1134.7kbits/s dup=0 drop=671 speed=0.464x    
  
  06-17 17:15:19.144 E: onProgress: frame=  241 fps= 12 q=20.0 size=    1280kB time=00:00:09.49 bitrate=1104.2kbits/s dup=0 drop=688 speed=0.465x    
  
  06-17 17:15:19.634 E: onProgress: frame=  247 fps= 12 q=23.0 size=    1280kB time=00:00:09.72 bitrate=1077.8kbits/s dup=0 drop=706 speed=0.465x    
  
  06-17 17:15:20.153 E: onProgress: frame=  252 fps= 12 q=23.0 size=    1280kB time=00:00:09.93 bitrate=1055.1kbits/s dup=0 drop=720 speed=0.463x    
  
  06-17 17:15:20.675 E: onProgress: frame=  258 fps= 12 q=24.0 size=    1280kB time=00:00:10.19 bitrate=1028.7kbits/s dup=0 drop=737 speed=0.464x    
  
  06-17 17:15:21.213 E: onProgress: frame=  259 fps= 12 q=24.0 size=    1280kB time=00:00:10.65 bitrate= 983.9kbits/s dup=0 drop=739 speed=0.474x    
  
  06-17 17:15:21.718 E: onProgress: frame=  259 fps= 11 q=24.0 size=    1280kB time=00:00:11.12 bitrate= 942.8kbits/s dup=0 drop=739 speed=0.483x    
  
  06-17 17:15:22.256 E: onProgress: frame=  259 fps= 11 q=24.0 size=    1280kB time=00:00:11.65 bitrate= 899.6kbits/s dup=0 drop=739 speed=0.495x    
  
  06-17 17:15:22.574 E: onProgress: [mp3float @ 0xb386d400] Could not update timestamps for skipped samples.
  
  06-17 17:15:22.888 E: onProgress: frame=  259 fps= 11 q=24.0 size=    1280kB time=00:00:12.09 bitrate= 866.8kbits/s dup=0 drop=739 speed=0.502x    
  
  06-17 17:15:23.325 E: onProgress: frame=  259 fps= 11 q=24.0 size=    1280kB time=00:00:12.46 bitrate= 841.0kbits/s dup=0 drop=739 speed=0.507x    
  
  06-17 17:15:23.810 E: onProgress: frame=  259 fps= 10 q=24.0 size=    1280kB time=00:00:12.93 bitrate= 810.8kbits/s dup=0 drop=739 speed=0.515x    
  
  06-17 17:15:24.331 E: onProgress: frame=  259 fps= 10 q=24.0 size=    1280kB time=00:00:13.42 bitrate= 781.3kbits/s dup=0 drop=739 speed=0.524x    
  
  06-17 17:15:24.873 E: onProgress: frame=  259 fps=9.9 q=24.0 size=    1280kB time=00:00:13.93 bitrate= 752.7kbits/s dup=0 drop=739 speed=0.533x    
  
  06-17 17:15:25.374 E: onProgress: frame=  259 fps=9.7 q=24.0 size=    1280kB time=00:00:14.39 bitrate= 728.4kbits/s dup=0 drop=739 speed=0.54x    
  
  06-17 17:15:25.898 E: onProgress: frame=  259 fps=9.5 q=24.0 size=    1280kB time=00:00:14.86 bitrate= 705.6kbits/s dup=0 drop=739 speed=0.547x    
  
  06-17 17:15:26.407 E: onProgress: frame=  259 fps=9.4 q=24.0 size=    1280kB time=00:00:15.34 bitrate= 683.2kbits/s dup=0 drop=739 speed=0.554x    
  
  06-17 17:15:26.917 E: onProgress: frame=  259 fps=9.2 q=24.0 size=    1280kB time=00:00:15.85 bitrate= 661.2kbits/s dup=0 drop=739 speed=0.562x    
  
  06-17 17:15:27.430 E: onProgress: frame=  259 fps=9.0 q=24.0 size=    1280kB time=00:00:16.37 bitrate= 640.6kbits/s dup=0 drop=739 speed=0.57x    
  
  06-17 17:15:27.957 E: onProgress: frame=  259 fps=8.9 q=24.0 size=    1280kB time=00:00:16.76 bitrate= 625.5kbits/s dup=0 drop=739 speed=0.573x    
  
  06-17 17:15:28.489 E: onProgress: frame=  259 fps=8.7 q=24.0 size=    1280kB time=00:00:17.29 bitrate= 606.2kbits/s dup=0 drop=739 speed=0.581x    
  
  06-17 17:15:28.999 E: onProgress: frame=  259 fps=8.6 q=24.0 size=    1280kB time=00:00:17.78 bitrate= 589.6kbits/s dup=0 drop=739 speed=0.587x    
  
  06-17 17:15:29.187 E: onProgress: [mp3float @ 0xb386d400] Could not update timestamps for skipped samples.
  
  06-17 17:15:29.567 E: onProgress: frame=  259 fps=8.4 q=24.0 size=    1280kB time=00:00:18.18 bitrate= 576.8kbits/s dup=0 drop=739 speed=0.589x    
  
  06-17 17:15:30.107 E: onProgress: frame=  259 fps=8.3 q=24.0 size=    1280kB time=00:00:18.73 bitrate= 559.6kbits/s dup=0 drop=739 speed=0.597x    
  
  06-17 17:15:30.606 E: onProgress: frame=  259 fps=8.1 q=24.0 size=    1280kB time=00:00:19.24 bitrate= 544.8kbits/s dup=0 drop=739 speed=0.604x    
  
  06-17 17:15:31.127 E: onProgress: frame=  259 fps=8.0 q=24.0 size=    1280kB time=00:00:19.78 bitrate= 530.0kbits/s dup=0 drop=739 speed=0.611x    
  
  06-17 17:15:31.626 E: onProgress: frame=  259 fps=7.9 q=24.0 size=    1280kB time=00:00:20.29 bitrate= 516.7kbits/s dup=0 drop=739 speed=0.617x    
  
  06-17 17:15:32.164 E: onProgress: frame=  259 fps=7.7 q=24.0 size=    1280kB time=00:00:20.85 bitrate= 502.9kbits/s dup=0 drop=739 speed=0.623x    
  
  06-17 17:15:32.686 E: onProgress: frame=  259 fps=7.6 q=24.0 size=    1280kB time=00:00:21.38 bitrate= 490.3kbits/s dup=0 drop=739 speed=0.629x    
  
  06-17 17:15:33.222 E: onProgress: frame=  259 fps=7.5 q=24.0 size=    1280kB time=00:00:21.89 bitrate= 478.9kbits/s dup=0 drop=739 speed=0.634x    
  
  06-17 17:15:33.744 E: onProgress: frame=  259 fps=7.4 q=24.0 size=    1280kB time=00:00:22.43 bitrate= 467.5kbits/s dup=0 drop=739 speed=0.64x    
  
  06-17 17:15:34.264 E: onProgress: frame=  259 fps=7.3 q=24.0 size=    1280kB time=00:00:22.96 bitrate= 456.6kbits/s dup=0 drop=739 speed=0.646x    
  
  06-17 17:15:34.764 E: onProgress: frame=  259 fps=7.2 q=24.0 size=    1280kB time=00:00:23.47 bitrate= 446.7kbits/s dup=0 drop=739 speed=0.651x    
  
  06-17 17:15:35.269 E: onProgress: [mp3float @ 0xb386d400] Could not update timestamps for skipped samples.
  
  06-17 17:15:35.293 E: onProgress: frame=  259 fps=7.1 q=24.0 size=    1536kB time=00:00:24.00 bitrate= 524.1kbits/s dup=0 drop=739 speed=0.656x    
  
  06-17 17:15:35.792 E: onProgress: frame=  259 fps=7.0 q=24.0 size=    1536kB time=00:00:24.24 bitrate= 519.1kbits/s dup=0 drop=739 speed=0.654x    
  
  06-17 17:15:36.294 E: onProgress: frame=  259 fps=6.9 q=24.0 size=    1536kB time=00:00:24.75 bitrate= 508.4kbits/s dup=0 drop=739 speed=0.659x    
  
  06-17 17:15:36.812 E: onProgress: frame=  259 fps=6.8 q=24.0 size=    1536kB time=00:00:25.28 bitrate= 497.6kbits/s dup=0 drop=739 speed=0.664x    
  
  06-17 17:15:37.314 E: onProgress: frame=  259 fps=6.7 q=24.0 size=    1536kB time=00:00:25.79 bitrate= 487.8kbits/s dup=0 drop=739 speed=0.668x    
  
  06-17 17:15:37.832 E: onProgress: frame=  259 fps=6.6 q=24.0 size=    1536kB time=00:00:26.33 bitrate= 477.9kbits/s dup=0 drop=739 speed=0.673x    
  
  06-17 17:15:38.332 E: onProgress: frame=  259 fps=6.5 q=24.0 size=    1536kB time=00:00:26.84 bitrate= 468.8kbits/s dup=0 drop=739 speed=0.677x    
  
  06-17 17:15:38.850 E: onProgress: frame=  259 fps=6.5 q=24.0 size=    1536kB time=00:00:27.37 bitrate= 459.6kbits/s dup=0 drop=739 speed=0.682x    
  
  06-17 17:15:39.361 E: onProgress: frame=  259 fps=6.4 q=24.0 size=    1536kB time=00:00:27.88 bitrate= 451.2kbits/s dup=0 drop=739 speed=0.686x    
  
  06-17 17:15:39.877 E: onProgress: frame=  259 fps=6.3 q=24.0 size=    1536kB time=00:00:28.42 bitrate= 442.7kbits/s dup=0 drop=739 speed=0.69x    
  
  06-17 17:15:40.379 E: onProgress: frame=  259 fps=6.2 q=24.0 size=    1536kB time=00:00:28.93 bitrate= 434.9kbits/s dup=0 drop=739 speed=0.694x    
  
  06-17 17:15:40.898 E: onProgress: frame=  259 fps=6.1 q=24.0 size=    1536kB time=00:00:29.46 bitrate= 427.0kbits/s dup=0 drop=739 speed=0.698x    
  
  06-17 17:15:41.401 E: onProgress: frame=  259 fps=6.1 q=24.0 size=    1536kB time=00:00:29.97 bitrate= 419.8kbits/s dup=0 drop=739 speed=0.702x    
  
  06-17 17:15:41.406 E: onProgress: [mp3float @ 0xb386d400] Could not update timestamps for skipped samples.
  
  06-17 17:15:41.916 E: onProgress: frame=  259 fps=6.0 q=24.0 size=    1536kB time=00:00:30.44 bitrate= 413.4kbits/s dup=0 drop=739 speed=0.705x    
  
  06-17 17:15:42.421 E: onProgress: frame=  259 fps=5.9 q=24.0 size=    1536kB time=00:00:30.95 bitrate= 406.5kbits/s dup=0 drop=739 speed=0.708x    
  
  06-17 17:15:42.946 E: onProgress: frame=  259 fps=5.9 q=24.0 size=    1536kB time=00:00:31.48 bitrate= 399.6kbits/s dup=0 drop=739 speed=0.712x    
  
  06-17 17:15:43.442 E: onProgress: frame=  259 fps=5.8 q=24.0 size=    1536kB time=00:00:31.99 bitrate= 393.3kbits/s dup=0 drop=739 speed=0.715x    
  
  06-17 17:15:43.959 E: onProgress: frame=  259 fps=5.7 q=24.0 size=    1536kB time=00:00:32.53 bitrate= 386.8kbits/s dup=0 drop=739 speed=0.719x    
  
  06-17 17:15:44.459 E: onProgress: frame=  259 fps=5.7 q=24.0 size=    1536kB time=00:00:33.04 bitrate= 380.8kbits/s dup=0 drop=739 speed=0.722x    
  
  06-17 17:15:44.976 E: onProgress: frame=  259 fps=5.6 q=24.0 size=    1536kB time=00:00:33.57 bitrate= 374.8kbits/s dup=0 drop=739 speed=0.726x    
  
  06-17 17:15:45.477 E: onProgress: frame=  259 fps=5.5 q=24.0 size=    1536kB time=00:00:34.08 bitrate= 369.2kbits/s dup=0 drop=739 speed=0.729x    
  
  06-17 17:15:45.993 E: onProgress: frame=  259 fps=5.5 q=24.0 size=    1536kB time=00:00:34.62 bitrate= 363.5kbits/s dup=0 drop=739 speed=0.732x    
  
  06-17 17:15:46.496 E: onProgress: frame=  259 fps=5.4 q=24.0 size=    1536kB time=00:00:35.13 bitrate= 358.2kbits/s dup=0 drop=739 speed=0.735x    
  
  06-17 17:15:47.014 E: onProgress: frame=  259 fps=5.4 q=24.0 size=    1536kB time=00:00:35.66 bitrate= 352.8kbits/s dup=0 drop=739 speed=0.738x    
  
  06-17 17:15:47.340 E: onProgress: [mp3float @ 0xb386d400] Could not update timestamps for skipped samples.
  
  06-17 17:15:47.622 E: onProgress: frame=  259 fps=5.3 q=24.0 size=    1536kB time=00:00:36.10 bitrate= 348.5kbits/s dup=0 drop=739 speed=0.74x    
  
  06-17 17:15:48.042 E: onProgress: frame=  259 fps=5.3 q=24.0 size=    1536kB time=00:00:36.47 bitrate= 345.0kbits/s dup=0 drop=739 speed=0.74x    
  
  06-17 17:15:48.555 E: onProgress: frame=  259 fps=5.2 q=24.0 size=    1536kB time=00:00:36.98 bitrate= 340.2kbits/s dup=0 drop=739 speed=0.742x    
  
  06-17 17:15:49.066 E: onProgress: frame=  259 fps=5.1 q=24.0 size=    1536kB time=00:00:37.40 bitrate= 336.4kbits/s dup=0 drop=739 speed=0.743x    
  
  06-17 17:15:49.585 E: onProgress: frame=  259 fps=5.1 q=24.0 size=    1536kB time=00:00:37.94 bitrate= 331.7kbits/s dup=0 drop=739 speed=0.746x    
  
  06-17 17:15:50.083 E: onProgress: frame=  259 fps=5.0 q=24.0 size=    1536kB time=00:00:38.45 bitrate= 327.2kbits/s dup=0 drop=739 speed=0.748x    
  
  06-17 17:15:50.624 E: onProgress: frame=  259 fps=5.0 q=24.0 size=    1536kB time=00:00:39.00 bitrate= 322.6kbits/s dup=0 drop=739 speed=0.751x    
  
  06-17 17:15:51.145 E: onProgress: frame=  259 fps=4.9 q=24.0 size=    1536kB time=00:00:39.54 bitrate= 318.2kbits/s dup=0 drop=739 speed=0.754x    
  
  06-17 17:15:51.667 E: onProgress: frame=  259 fps=4.9 q=24.0 size=    1792kB time=00:00:40.07 bitrate= 366.3kbits/s dup=0 drop=739 speed=0.757x    
  
  06-17 17:15:52.190 E: onProgress: frame=  259 fps=4.8 q=24.0 size=    1792kB time=00:00:40.61 bitrate= 361.5kbits/s dup=0 drop=739 speed=0.759x    
  
  06-17 17:15:52.710 E: onProgress: frame=  259 fps=4.8 q=24.0 size=    1792kB time=00:00:41.14 bitrate= 356.8kbits/s dup=0 drop=739 speed=0.762x    
  
  06-17 17:15:53.210 E: onProgress: frame=  259 fps=4.8 q=24.0 size=    1792kB time=00:00:41.65 bitrate= 352.4kbits/s dup=0 drop=739 speed=0.764x    
  
  06-17 17:15:53.553 E: onProgress: [mp3float @ 0xb386d400] Could not update timestamps for skipped samples.
  
  06-17 17:15:53.863 E: onProgress: frame=  259 fps=4.7 q=24.0 size=    1792kB time=00:00:42.14 bitrate= 348.3kbits/s dup=0 drop=739 speed=0.766x    
  
  06-17 17:15:54.286 E: onProgress: frame=  259 fps=4.7 q=24.0 size=    1792kB time=00:00:42.53 bitrate= 345.1kbits/s dup=0 drop=739 speed=0.766x    
  
  06-17 17:15:54.785 E: onProgress: frame=  259 fps=4.6 q=24.0 size=    1792kB time=00:00:43.04 bitrate= 341.0kbits/s dup=0 drop=739 speed=0.768x    
  
  06-17 17:15:55.304 E: onProgress: frame=  259 fps=4.6 q=24.0 size=    1792kB time=00:00:43.58 bitrate= 336.8kbits/s dup=0 drop=739 speed=0.77x    
  
  06-17 17:15:55.806 E: onProgress: frame=  259 fps=4.5 q=24.0 size=    1792kB time=00:00:44.09 bitrate= 332.9kbits/s dup=0 drop=739 speed=0.772x    
  
  06-17 17:15:56.348 E: onProgress: frame=  259 fps=4.5 q=24.0 size=    1792kB time=00:00:44.65 bitrate= 328.8kbits/s dup=0 drop=739 speed=0.775x    
  
  06-17 17:15:56.869 E: onProgress: frame=  259 fps=4.5 q=24.0 size=    1792kB time=00:00:45.18 bitrate= 324.9kbits/s dup=0 drop=739 speed=0.777x    
  
  06-17 17:15:57.387 E: onProgress: frame=  259 fps=4.4 q=24.0 size=    1792kB time=00:00:45.72 bitrate= 321.1kbits/s dup=0 drop=739 speed=0.779x    
  
  06-17 17:15:57.909 E: onProgress: frame=  259 fps=4.4 q=24.0 size=    1792kB time=00:00:46.25 bitrate= 317.4kbits/s dup=0 drop=739 speed=0.781x    
  
  06-17 17:15:58.477 E: onProgress: frame=  259 fps=4.3 q=24.0 size=    1792kB time=00:00:46.74 bitrate= 314.1kbits/s dup=0 drop=739 speed=0.782x    
  
  06-17 17:15:58.947 E: onProgress: frame=  259 fps=4.3 q=24.0 size=    1792kB time=00:00:47.25 bitrate= 310.7kbits/s dup=0 drop=739 speed=0.784x    
  
  06-17 17:15:59.480 E: onProgress: frame=  259 fps=4.3 q=24.0 size=    1792kB time=00:00:47.78 bitrate= 307.2kbits/s dup=0 drop=739 speed=0.786x    
  
  06-17 17:15:59.712 E: onProgress: [mp3float @ 0xb386d400] Could not update timestamps for skipped samples.
  
  06-17 17:16:00.066 E: onProgress: frame=  259 fps=4.2 q=24.0 size=    1792kB time=00:00:48.18 bitrate= 304.7kbits/s dup=0 drop=739 speed=0.786x    
  
  06-17 17:16:00.545 E: onProgress: frame=  259 fps=4.2 q=24.0 size=    1792kB time=00:00:48.64 bitrate= 301.8kbits/s dup=0 drop=739 speed=0.787x    
  
  06-17 17:16:01.084 E: onProgress: frame=  259 fps=4.2 q=24.0 size=    1792kB time=00:00:49.20 bitrate= 298.4kbits/s dup=0 drop=739 speed=0.789x    

  Second Command fromGyan’s answer

  [-y,
  
  -f, lavfi, -i, amovie=/storage/emulated/0/VideoEditor/.caches/Video_editor_1560774174121.mp3:loop=0,
  
  -i, /storage/emulated/0/Received/VID-20190407-WA0001.mp4,
  
  -i, /storage/emulated/0/Received/MP4_20190220_114210.mp4,
  
  -strict, experimental,
  
  -filter_complex,
  
  [1:v]scale=iw*min(480/iw\,480/ih):ih*min(480/iw\,480/ih), pad=480:480:(480-iw*min(480/iw\,480/ih))/2:(480-ih*min(480/iw\,480/ih))/2,setsar=1:1[v1];
  
  [2:v]scale=iw*min(480/iw\,480/ih):ih*min(480/iw\,480/ih), pad=480:480:(480-iw*min(480/iw\,480/ih))/2:(480-ih*min(480/iw\,480/ih))/2,setsar=1:1[v2];
  
  [v1][v2] concat=n=2:v=1[vTemp];[vTemp]setpts=0.25*PTS[finalv],
  
  -map, [finalv], -map, 0:a,
  
  -shortest, -preset, ultrafast,
  
  /storage/emulated/0/VideoEditor/Video_editor_1560774181194.mp4]

  Your help would be appreciated.

• How to fix : Frame rate differs from source after encoding certain mp4 videos to wmv

  25 juin 2019, par hpenhp

  I’m having trouble with a usually working ffmpeg script for encoding mp4 and more to wmv. The goal is to keep it like the original, except for the resolution (smaller) and the format (wmv).

  When it usually works for a lot of videos, on some of them it doesn’t... and i would like to understand and avoid that.

  I tried several things, forcing the framerate for the output, using -vsync 2 option, -vsync 0 also.. noone of that fixed the issue.

  An other thing, worth adding, is that the fps value from media info is good (24 fps) on the output like the input, but through the M$ windows explorer, it says 30 frames per sec, and when you play the video you see that the text that was matching the input doesn’t match the output any more (because of the fps mismatching).

  Below the script i use :

  ffmpeg -threads auto -i input.mp4 -s 480*320 -b:v 1000k -vcodec msmpeg4 -acodec wmav2 -f asf output.wmv

  Here is the ffmpeg log :

  ffmpeg version 3.4.1-1~16.04.york0 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.5) 20160609
  
    configuration: --prefix=/usr --extra-version='1~16.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  
    WARNING: library configuration mismatch
  
    avcodec     configuration: --prefix=/usr --extra-version='1~16.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared --enable-version3 --disable-doc --disable-programs --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libtesseract --enable-libvo_amrwbenc
  
    libavutil      55. 78.100 / 55. 78.100
  
    libavcodec     57.107.100 / 57.107.100
  
    libavformat    57. 83.100 / 57. 83.100
  
    libavdevice    57. 10.100 / 57. 10.100
  
    libavfilter     6.107.100 /  6.107.100
  
    libavresample   3.  7.  0 /  3.  7.  0
  
    libswscale      4.  8.100 /  4.  8.100
  
    libswresample   2.  9.100 /  2.  9.100
  
    libpostproc    54.  7.100 / 54.  7.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './test_2k-24__hq_960x540.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41isomavc1
  
      creation_time   : 2019-05-27T14:37:50.000000Z
  
    Duration: 01:28:52.80, start: 0.000000, bitrate: 1232 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 960x540, 1091 kb/s, 24 fps, 24 tbr, 24 tbn, 48 tbc (default)
  
      Metadata:
  
        creation_time   : 2019-05-27T14:37:50.000000Z
  
        handler_name    : L-SMASH Video Handler
  
        encoder         : AVC Coding
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 137 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-05-27T14:37:50.000000Z
  
        handler_name    : L-SMASH Audio Handler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> msmpeg4v3 (msmpeg4))
  
    Stream #0:1 -> #0:1 (aac (native) -> wmav2 (native))
  
  Press [q] to stop, [?] for help
  
  Output #0, asf, to '/nas/copiedetravail/test_2k-24__hq_960x540.mp4.wmv':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41isomavc1
  
      WM/EncodingSettings: Lavf57.83.100
  
      Stream #0:0(und): Video: msmpeg4v3 (msmpeg4) (MP43 / 0x3334504D), yuv420p(progressive), 480x320, q=2-31, 1000 kb/s, 24 fps, 1k tbn, 24 tbc (default)
  
      Metadata:
  
        creation_time   : 2019-05-27T14:37:50.000000Z
  
        handler_name    : L-SMASH Video Handler
  
        encoder         : Lavc57.107.100 msmpeg4
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/1000000 buffer size: 0 vbv_delay: -1
  
      Stream #0:1(und): Audio: wmav2 (a[1][0][0] / 0x0161), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-05-27T14:37:50.000000Z
  
        handler_name    : L-SMASH Audio Handler
  
        encoder         : Lavc57.107.100 wmav2
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
      Last message repeated 31 times
  
  frame=  228 fps=0.0 q=2.0 size=     291kB time=00:00:09.45 bitrate= 252.4kbits/s speed=18.9x    
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 2 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
      Last message repeated 1 times
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 2 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 2 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 2 dct coefficients to -127..127
  
      Last message repeated 1 times
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 2 dct coefficients to -127..127
  
      Last message repeated 1 times
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 2 dct coefficients to -127..127
  
      Last message repeated 5 times
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
      Last message repeated 2 times
  
  frame=  449 fps=449 q=2.0 size=     663kB time=00:00:18.98 bitrate= 286.2kbits/s speed=  19x    
  
  frame=  629 fps=418 q=1.6 size=    1307kB time=00:00:26.16 bitrate= 409.2kbits/s speed=17.4x    
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
      Last message repeated 30 times
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 2 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
      Last message repeated 7 times
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 2 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
      Last message repeated 2 times
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 2 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
      Last message repeated 34 times
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 2 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
      Last message repeated 1 times
  
  frame=  821 fps=410 q=2.0 size=    1960kB time=00:00:34.26 bitrate= 468.7kbits/s speed=17.1x    
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 2 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
      Last message repeated 71 times
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 2 dct coefficients to -127..127
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
      Last message repeated 82 times
  
  frame= 1026 fps=409 q=2.0 size=    2695kB time=00:00:42.96 bitrate= 513.8kbits/s speed=17.1x    
  
  [msmpeg4 @ 0x5648e407cb60] warning, clipping 1 dct coefficients to -127..127
  
      Last message repeated 102 times
  
  frame= 1202 fps=400 q=1.6 size=    3754kB time=00:00:50.13 bitrate= 613.4kbits/s speed=16.7x  
  
  ......
  
  frame=127987 fps=301 q=2.0 Lsize=  753842kB time=01:28:52.77 bitrate=1158.0kbits/s speed=12.6x    
  
  video:650704kB audio:83244kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.710554%

  EDIT :
  My workaround was to encode to MPEG, doing this, i’m able to read my file and the frame rate is same as source. If someone knows why it couldn’t keep the original framerate in wmv, i’m still interested to know.

• ffmpeg -Video live feed

  22 juin 2019, par Rajeev

  I am using AMCREST security camera at my home. My objective is to get a live feed one of IP camera attached to my NVR to a webportal using rtsp ://My environment is Raspberry pi.

  I am able to successfully start the ffserver but conversion is failing when I am trying pass the input video and stream it to video.ffm

  I have tried various combination of parameters in the command but the below one seems to be very close where I got only one error ( av_interleaved_write_frame() : Connection reset by peer)

  $ffmpeg  -thread_queue_size 800  -i "rtsp://home:Home1234@192.168.1.32:554/cam/realmonitor?channel=4&subtype=0" -f lavfi -i aevalsrc=0  http://127.0.0.1:8090/video.ffm 

  ******* ffmpeg server configuration file content : etc/livestream.conf

  #Default port
  
  HTTPPort 8090
  
  HTTPBindAddress 0.0.0.0
  
  MaxHTTPConnections 2000
  
  MaxClients 1000
  
  MaxBandwidth 100000
  
  CustomLog -
  
  
  
  #############################################################
  
  
  
  <feed>
  
    File /tmp/video.ffm                    # this creates a temp video.ffm file where streams are read/write
  
    FileMaxSize 0.5G
  
    ACL allow localhost
  
    ACL allow 127.0.0.1
  
    ACL allow 192.168.0.0 192.168.255.255
  
  </feed>
  
  
  
  <stream stream="stream">
  
  # streaming for webm file
  
  # run : ffserver -f /etc/ffserver.conf
  
  # run : ffmpeg -i videoname.mp4 http://localhost:8090/video.ffm
  
  # error : encoder setup failed
  
    Feed video.ffm
  
    Format webm
  
  
  
  # Audio settings
  
    AudioCodec vorbis
  
    AudioBitRate 64                             # Audio bitrate
  
  
  
  # Video settings
  
    VideoCodec libvpx
  
    VideoSize 720x486                           # Video resolution
  
    VideoFrameRate 30                           # Video FPS
  
    AVOptionVideo flags +global_header          # Parameters passed to encoder
  
  
  
    AVOptionVideo cpu-used 0
  
    AVOptionVideo qmin 10                       # lower the better, min 0
  
    AVOptionVideo qmax 42                       # higher outputs bad quality, max 63
  
    AVOptionVideo quality good
  
    AVOptionAudio flags +global_header
  
    PreRoll 15
  
    StartSendOnKey
  
    VideoBitRate 400                            # Video bitrate
  
  </stream>
  
  
  
  
  
  
  
  ###########################################################################
  
  
  
  # Audio only
  
  # run ffmpeg -i audio.mp3 http://localhost:8090/audio.ffm
  
  # run http://localhost:8090/audio in vlc or browser
  
  
  
  <feed>
  
    File /tmp/audio.ffm
  
    FileMaxSize 1G
  
    ACL allow localhost
  
    ACL allow 127.0.0.1
  
    ACL allow 192.168.0.0 192.168.255.255
  
  </feed>
  
  
  
  <stream audio="audio">
  
    Feed audio.ffm
  
    Format mp2                                     #audio format
  
    AudioCodec libmp3lame                          #audio codec
  
    AudioBitRate 64                                #audio bitrate
  
    AudioChannels 1                                #audio channel, 1 for mono and 2 for stereo
  
    AudioSampleRate 44100
  
    NoVideo                                        #discard video
  
  </stream>
  
  
  
  ####################################################################
  
  #view status of ffserver
  
  <stream>
  
    Format status
  
    ACL allow localhost
  
    ACL allow 192.168.0.0 192.168.255.255
  
  </stream>
  
  
  
  
  
  
  
  # Redirect index.html to the appropriate site
  
  
  
  <redirect>
  
    URL http://www.ffmpeg.org/
  
  </redirect>

  *****output of ffmpeg server running successfully on separate console***

  $ ffserver -f /etc/livestream.conf

  ffserver version 3.2.14-1 deb9u1+rpt1 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1+deb9u1) 20170516
  configuration : —prefix=/usr —extra-version=’1 deb9u1+rpt1’ —toolchain=hardened —libdir=/usr/lib/arm-linux-gnueabihf —incdir=/usr/include/arm-linux-gnueabihf —enable-gpl —disable-stripping —enable-avresample —enable-avisynth —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libbs2b —enable-libcaca —enable-libcdio —enable-libebur128 —enable-libflite —enable-libfontconfig —enable-libfreetype —enable-libfribidi —enable-libgme —enable-libgsm —enable-libmp3lame —enable-libopenjpeg —enable-libopenmpt —enable-libopus —enable-libpulse —enable-librubberband —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libspeex —enable-libssh —enable-libtheora —enable-libtwolame —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx265 —enable-libxvid —enable-libzmq —enable-libzvbi —enable-omx —enable-omx-rpi —enable-mmal —enable-openal —enable-opengl —enable-sdl2 —enable-libdc1394 —enable-libiec61883 —arch=armhf —enable-chromaprint —enable-frei0r —enable-libopencv —enable-libx264 —enable-shared
  libavutil 55. 34.101 / 55. 34.101
  libavcodec 57. 64.101 / 57. 64.101
  libavformat 57. 56.101 / 57. 56.101
  libavdevice 57. 1.100 / 57. 1.100
  libavfilter 6. 65.100 / 6. 65.100
  libavresample 3. 1. 0 / 3. 1. 0
  libswscale 4. 2.100 / 4. 2.100
  libswresample 2. 3.100 / 2. 3.100
  libpostproc 54. 1.100 / 54. 1.100
  /etc/livestream.conf:45 : Setting default value for audio sample rate = 22050. Use NoDefaults to disable it.
  /etc/livestream.conf:45 : Setting default value for audio channel count = 1. Use NoDefaults to disable it.
  /etc/livestream.conf:45 : Setting default value for video bit rate tolerance = 100000. Use NoDefaults to disable it.
  /etc/livestream.conf:45 : Setting default value for video rate control equation = tex^qComp. Use NoDefaults to disable it.
  /etc/livestream.conf:45 : Setting default value for video max rate = 13749264. Use NoDefaults to disable it.
  /etc/livestream.conf:45 : Setting default value for video buffer size = 800000. Use NoDefaults to disable it.
  Fri Jun 21 19:43:59 2019 FFserver started.

  ---

  2nd Console

  $$ffmpeg  -thread_queue_size 800  -i "rtsp://home:Home1234@192.168.1.32:554/cam/realmonitor?channel=4&subtype=0" -f lavfi -i aevalsrc=0  http://127.0.0.1:8090/video.ffm 

  *************************Output**********

  Input #0, rtsp, from 'rtsp://home:Home1234@192.168.1.32:554/cam/realmonitor?channel=4&subtype=0':
  
    Metadata:
  
      title           : Media Server
  
    Duration: N/A, start: 0.290000, bitrate: N/A
  
      Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 2304x1296 [SAR 1:1 DAR 16:9], 20 fps, 250 tbr, 90k tbn, 40 tbc
  
  Input #1, lavfi, from 'aevalsrc=0':
  
    Duration: N/A, start: 0.000000, bitrate: 2822 kb/s
  
      Stream #1:0: Audio: pcm_f64le, 44100 Hz, mono, dbl, 2822 kb/s
  
  [swscaler @ 0x256dd80] deprecated pixel format used, make sure you did set range correctly
  
  [libvpx @ 0x2564190] v1.6.1
  
  Output #0, ffm, to 'http://127.0.0.1:8090/video.ffm':
  
    Metadata:
  
      title           : Media Server
  
      creation_time   : now
  
      encoder         : Lavf57.56.101
  
      Stream #0:0: Audio: vorbis (libvorbis), 22050 Hz, mono, fltp, 64 kb/s
  
      Metadata:
  
        encoder         : Lavc57.64.101 libvorbis
  
      Stream #0:1: Video: vp8 (libvpx), yuv420p, 720x486 [SAR 6:5 DAR 16:9], q=10-42, 400 kb/s, 20 fps, 1000k tbn, 30 tbc
  
      Metadata:
  
        encoder         : Lavc57.64.101 libvpx
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 800000 vbv_delay: -1
  
  Stream mapping:
  
    Stream #1:0 -> #0:0 (pcm_f64le (native) -> vorbis (libvorbis))
  
    Stream #0:0 -> #0:1 (h264 (native) -> vp8 (libvpx))
  
  Press [q] to stop, [?] for help
  
  frame=    2 fps=1.2 q=0.0 size=       8kB time=00:00:00.03 bitrate=1966.0kbits/s dup=1 drop=0 speed=0.0av_interleaved_write_frame(): Connection reset by peer
  
  Error writing trailer of http://127.0.0.1:8090/video.ffm: Connection reset by peer frame=    2 fps=1.1 q=0.0 Lsize=      40kB time=00:00:00.03 bitrate=9830.2kbits/s dup=1 drop=0 speed=0.0189x    
  
  video:29kB audio:0kB subtitle:0kB other streams:0kB global headers:4kB muxing overhead: 36.183796%
  
  Conversion failed

  My expectation is that ffmpeg will start writing data to video.ffm located in /tmp directory so that I can read the data from our browser or vlc media player by just entering the following link
  http://localhost:8090/stream

  ****** Update after 2 hr******

  I made slight change to the command parameter and my out changed as well.What it looks like the temporary video file that got generated in /tmp folder is not getting consumes by video.ffm ( I may be wrong in my analysis)

  ffmpeg  -thread_queue_size 1200  -i "rtsp://home:Home1234@192.168.1.32:554/cam/realmonitor?channel=4&subtype=0" -f lavfi -i aevalsrc=0 -override_ffserver  http://127.0.0.1:8090/video.ffm

  ***************** Output ****

  Past duration 0.660332 too large     376kB time=00:00:01.03 bitrate=2978.9kbits/s dup=3 drop=5 speed=0.171x    
  
  Past duration 0.637352 too large     840kB time=00:00:03.72 bitrate=1847.5kbits/s dup=14 drop=5 speed=0.213x    
  
  Past duration 0.678307 too large
  
  Past duration 0.713280 too large    1180kB time=00:00:05.52 bitrate=1749.0kbits/s dup=21 drop=5 speed=0.218x    
  
  Past duration 0.901085 too large    1372kB time=00:00:06.72 bitrate=1670.4kbits/s dup=26 drop=5 speed=0.22x     
  
  Past duration 0.948051 too large    2456kB time=00:00:12.97 bitrate=1551.1kbits/s dup=51 drop=5 speed=0.226x    
  
  [rtsp @ 0x1fd7670] Thread message queue blocking; consider raising the thread_queue_size option (current value: 1200)
  
  Past duration 0.713280 too large    3336kB time=00:00:17.64 bitrate=1549.0kbits/s dup=70 drop=5 speed=0.228x    
  
  [rtsp @ 0x1fd7670] max delay reached. need to consume packetbitrate=1537.0kbits/s dup=76 drop=5 speed=0.229x    
  
  [rtsp @ 0x1fd7670] RTP: missed 30 packets
  
  [rtsp @ 0x1fd7670] max delay reached. need to consume packetbitrate=1533.3kbits/s dup=78 drop=5 speed=0.228x    
  
  [rtsp @ 0x1fd7670] RTP: missed 134 packets
  
  [rtsp @ 0x1fd7670] max delay reached. need to consume packetbitrate=1539.5kbits/s dup=82 drop=5 speed=0.229x    
  
  [rtsp @ 0x1fd7670] RTP: missed 111 packets
  
  [rtsp @ 0x1fd7670] max delay reached. need to consume packetbitrate=1526.3kbits/s dup=84 drop=5 speed=0.229x    
  
  [rtsp @ 0x1fd7670] RTP: missed 19 packets
  
  [rtsp @ 0x1fd7670] max delay reached. need to consume packetbitrate=1521.7kbits/s dup=92 drop=5 speed=0.23x     
  
  [rtsp @ 0x1fd7670] RTP: missed 626 packets
  
  Past duration 0.651329 too large    4408kB time=00:00:23.64 bitrate=1527.0kbits/s dup=94 drop=5 speed=0.23x    
  
  [rtsp @ 0x1fd7670] max delay reached. need to consume packetbitrate=1516.7kbits/s dup=94 drop=5 speed=0.23x    
  
  [rtsp @ 0x1fd7670] RTP: missed 134 packets
  
  [rtsp @ 0x1fd7670] max delay reached. need to consume packetbitrate=1521.3kbits/s dup=98 drop=5 speed=0.231x    
  
  [rtsp @ 0x1fd7670] RTP: missed 123 packets
  
  Past duration 0.633354 too large    4608kB time=00:00:24.98 bitrate=1511.0kbits/s dup=99 drop=5 speed=0.23x     
  
  [rtsp @ 0x1fd7670] max delay reached. need to consume packetbitrate=1523.4kbits/s dup=99 drop=5 speed=0.231x