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  • FFmpeg pipe input, error while transcoding from WebM to MP4

    7 mai 2022, par saurav

    I am trying to record a video from pipe input using FFMPEG. The pipe input is in WebM format i.e. the video codec is VP8 and the audio codec is OPUS. I am able to save the output video in the WebM format using FFMPEG without any issue. But when I am trying to save it in MP4 format, I am not getting the desired output. Though there are no errors while saving, the output file shows an error with description " This file contains no playable streams !."

    


    These are the options for successfully recording in the WebM format.

    


        '-loglevel', 'debug', '-protocol_whitelist', 'pipe,udp,rtp', 
'-fflags', '+genpts', '-i', 'pipe:0', '-map', '0:v:0', '-c:v', 
'copy', '-map', '0:a:0', '-strict', '-2', '-c:a', 'copy', '-flags',
 '+global_header', '-f', 'webm', 'output.webm'


    


    Here are my ffmpeg options for recording in the MP4 format.

    


        '-thread_queue_size', '4096', '-r', '25', '-i', 'pipe:0', 
    '-c:v', 'libx264', '-preset', 'veryFast', '-pix_fmt', 'yuvj420p', 
    '-acodec', 'aac', "output.mp4"


    


    Console output after executing this command as a subprocess

    


    > ffmpeg::process::data [data:'  libavutil      56. 31.100 / 56. 
31.100\n' + '  libavcodec     58. 54.100 / 58. 54.100\n' + '  
libavformat    58. 29.100 / 58. 29.100\n' + '  libavdevice    58. 
 8.100 / 58.  8.100\n' + '  libavfilter     7. 57.100 /  7. 57.100\n'
 + '  libavresample   4.  0.  0 /  4.  0.  0\n' + '  libswscale 
     5.  5.100 /  5.  5.100\n' + '  libswresample   3.  5.100 /  3.
  5.100\n' + '  libpostproc    55.  5.100 / 55.  5.100\n'] +1ms
> 
> ffmpeg ffmpeg::process::data [data:"Input #0, matroska,webm, from
> 'pipe:0':\n" + '  Metadata:\n' + '    encoder         : Chrome\n' + ' 
> Duration: N/A, start: 0.000000, bitrate: N/A\n' + '    Stream
> #0:0(eng): Audio: opus, 48000 Hz, stereo, fltp (default)\n' + ' 
   Stream #0:1(eng): Video: vp8, yuv420p(progressive), 1920x950, SAR 1:1
> DAR 192:95, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)\n' + '   
> Metadata:\n' + '      alpha_mode      : 1\n'] +1s
> 
> 
>  ffmpeg::process::data [data:'Stream mapping:\n' + '  Stream #0:1 ->
> #0:0 (vp8 (native) -> h264 (libx264))\n' + '  Stream #0:0 -> #0:1 
(opus (native) -> aac (native))\n'] +1ms
> 
>    ffmpeg::process::data [data:'[swscaler @ 0x55a63050ddc0] deprecated
> pixel format used, make sure you did set range correctly\n'] +23ms
> 
>   ffmpeg::process::data [data:'[libx264 @ 0x55a630489980] using
> SAR=1/1\n'] +10ms
> 
>   ffmpeg::process::data [data:'[libx264 @ 0x55a630489980] using cpu
> capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2\n'] +0ms
> 
>   ffmpeg::process::data [data:'[libx264 @ 0x55a630489980] profile
> High, level 4.0\n'] +8ms
> 
>   ffmpeg::process::data [data:'[libx264 @ 0x55a630489980] 264 - core
> 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 -
> http://www.videolan.org/x264.html - options: cabac=1 ref=1
> deblock=1:0:0 analyse=0x3:0x113 me=hex subme=2 psy=1 psy_rd=1.00:0.00
> mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0
> deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=18
> 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=1 keyint=250
> keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=crf
> mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40
> aq=1:1.00\n'] +1ms
> 
>   ffmpeg::process::data [data:"Output #0, mp4, to 'output.mp4':\n" + '
> Metadata:\n' + '    encoder         : Lavf58.29.100\n' + '    Stream
> #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), 
yuvj420p(pc), 1920x950 [SAR 1:1 DAR 192:95], q=-1--1, 25 fps, 12800 tbn, 25 tbc
> (default)\n' + '    Metadata:\n' + '      alpha_mode      : 1\n' + '  
> encoder         : Lavc58.54.100 libx264\n' + '    Side data:\n' + '   
> cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1\n' + '   
> Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
> stereo, fltp, 128 kb/s (default)\n' + '    Metadata:\n' + '     
> encoder         : Lavc58.54.100 aac\n'] +0ms
> 
> ffmpeg::process::data [data:'frame=   45 fps=0.0 q=28.0 size=      
> 0kB time=00:00:01.87 bitrate=   0.2kbits/s speed=3.48x    \r'] +505ms
> 
> ffmpeg::process::data [data:'frame=   61 fps= 56 q=28.0 size=      
> 0kB time=00:00:02.41 bitrate=   0.2kbits/s speed=2.22x    \r'] +564ms
> 
> ffmpeg::process::data [data:'frame=   76 fps= 48 q=28.0 size=      
> 0kB time=00:00:02.88 bitrate=   0.1kbits/s speed=1.81x    \r'] +492ms


    


    I have a doubt on this output as it may have been causing the issue.

    


    ffmpeg::process::data [data:'[swscaler @ 0x55a63050ddc0] deprecated
 pixel format used, make sure you did set range correctly\n'] +23ms


    


    I hope I have provided enough information about the issue I am facing. Please ask for any other information needed to understand the issue correctly.

    


    I am sure that I am missing some ffmpeg options which is causing this issue. But I am not able to identify them ! Any help in correcting this issue would be greatly appreciated.

    


    Thank you.

    


  • Mp4 render result from ffmpeg not playable on android

    11 juillet 2019, par albert

    I’m using PHP to run ffmpeg(4.0.2) render out MP4 file.
    MP4 file playable on all of iOS device, and most laptop, but not playable on android device.

    Here is the ffmpeg code I use to render the video

    /usr/local/bin/ffmpeg -filter_complex "[0]reverse[r];[0][r]concat, loop=1:65, setpts=N/15/TB" -r 15 -f image2 -i /Source/0001_CAM%02d.jpg -c:v libx264 -preset fast -crf 19 -profile:v baseline -movflags +faststart -pix_fmt yuv420p /Result/output.mp4

    Here is the log

    [0] => ffmpeg version N-91590-geb1860e017-tessus Copyright (c) 2000-2018 the FFmpeg developers
    
    [1] =>   built with Apple LLVM version 9.1.0 (clang-902.0.39.2)
    
    [2] =>   configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
    
    [3] =>   libavutil      56. 18.102 / 56. 18.102
    
    [4] =>   libavcodec     58. 22.101 / 58. 22.101
    
    [5] =>   libavformat    58. 17.101 / 58. 17.101
    
    [6] =>   libavdevice    58.  4.101 / 58.  4.101
    
    [7] =>   libavfilter     7. 26.100 /  7. 26.100
    
    [8] =>   libswscale      5.  2.100 /  5.  2.100
    
    [9] =>   libswresample   3.  2.100 /  3.  2.100
    
    [10] =>   libpostproc    55.  2.100 / 55.  2.100
    
    [11] => Input #0, image2, from '/Source/0001_CAM%02d.jpg':
    
    [12] =>   Duration: 00:00:00.33, start: 0.000000, bitrate: N/A
    
    [13] =>     Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 3456x2304, 15 tbr, 15 tbn, 15 tbc
    
    [14] => Stream mapping:
    
    [15] =>   Stream #0:0 (mjpeg) -> reverse
    
    [16] =>   Stream #0:0 (mjpeg) -> concat:in0:v0
    
    [17] =>   setpts -> Stream #0:0 (libx264)
    
    [18] => Press [q] to stop, [?] for help
    
    [19] => [swscaler @ 0x1077f9000] deprecated pixel format used, make sure you did set range correctly
    
    [20] => [libx264 @ 0x7fd583800600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
    [21] => [libx264 @ 0x7fd583800600] profile Constrained Baseline, level 5.1, 4:2:0, 8-bit
    
    [22] => [libx264 @ 0x7fd583800600] 264 - core 157 r2932 303c484 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=0 ref=2 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=6 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=15 scenecut=40 intra_refresh=0 rc_lookahead=30 rc=crf mbtree=1 crf=19.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
    [23] => Output #0, mp4, to '/Result/output.mp4':
    
    [24] =>   Metadata:
    
    [25] =>     encoder         : Lavf58.17.101
    
    [26] =>     Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 3456x2304, q=-1--1, 15 fps, 15360 tbn, 15 tbc (default)
    
    [27] =>     Metadata:
    
    [28] =>       encoder         : Lavc58.22.101 libx264
    
    [29] =>     Side data:
    
    [30] =>       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    [31] => frame=    8 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x    
    
[mp4 @ 0x7fd583804a00] Starting second pass: moving the moov atom to the beginning of the file
    
    [32] => frame=   20 fps=5.1 q=-1.0 Lsize=   10642kB time=00:00:01.26 bitrate=68823.6kbits/s speed=0.322x
    
    [33] => video:10641kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.009452%
    
    [34] => [libx264 @ 0x7fd583800600] frame I:4     Avg QP:17.92  size:895006
    
    [35] => [libx264 @ 0x7fd583800600] frame P:16    Avg QP:19.96  size:457246
    
    [36] => [libx264 @ 0x7fd583800600] mb I  I16..4: 11.5%  0.0% 88.5%
    
    [37] => [libx264 @ 0x7fd583800600] mb P  I16..4:  4.1%  0.0% 25.0%  P16..4: 27.7% 19.0%  6.8%  0.0%  0.0%    skip:17.3%
    
    [38] => [libx264 @ 0x7fd583800600] coded y,uvDC,uvAC intra: 92.9% 89.0% 56.0% inter: 51.3% 65.2% 3.9%
    
    [39] => [libx264 @ 0x7fd583800600] i16 v,h,dc,p: 28%  5% 14% 52%
    
    [40] => [libx264 @ 0x7fd583800600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 12% 15%  8%  9% 10%  7%  8%  6%
    
    [41] => [libx264 @ 0x7fd583800600] i8c dc,h,v,p: 47% 16% 29%  8%
    
    [42] => [libx264 @ 0x7fd583800600] ref P L0: 81.6% 18.4%
    
    [43] => [libx264 @ 0x7fd583800600] kb/s:65375.79

  • FFMPEG - Convert MKV to MP4 with all streams (subtitles) and watermark

    24 juillet 2016, par ShinJii

    I spent few hours researching and still have problem...
    I want to convert .mkv file to .mp4 with watermark and subtitles (from mkv).

    I tried few commands but always error or success with watermark without subtitles.
    Here are some commands I tried (not all) :

    Partial Success - some files are converted with subtitles, but I have 153 files that are converted without subtitles... (both from .mkv to .mp4) :

    ffmpeg -i 025.mkv -vf "movie=logovideo2.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10,subtitles=025.mkv [out]" 25.mp4
    

    
ffmpeg -i 001.mkv -i logovideo2.png -filter_complex "[0:v][1:v]overlay=0:0,subtitles=001.mkv[out]" -map "[out]" -map 0:a -c:s ass 001.mp4

    Fail - command with error :

    ffmpeg -i 001.mkv -i logovideo2.png -filter_complex "[0:v][1:v]overlay=0:0[out]" -map "[out]" -map 0:a -map 0:s -c:s ass 001.mp4

    CODE (with error) :

    ffmpeg version N-81036-g2b14204 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
    
  configuration: --prefix=/root/ffmpeg_build --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libass
    
  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, matroska,webm, from '001.mkv':
    
  Metadata:
    
    title           : DB
    
    encoder         : libebml v1.2.1 + libmatroska v1.1.1
    
    creation_time   : 2011-09-15 16:44:37
    
  Duration: 00:24:39.37, start: 0.000000, bitrate: 1429 kb/s
    
    Stream #0:0(jpn): Audio: vorbis, 48000 Hz, stereo, fltp (default)
    
    Stream #0:1: Video: h264 (High), yuv420p, 720x540 [SAR 1:1 DAR 4:3], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    
    Stream #0:2(pol): Subtitle: ass (default)
    
    Metadata:
    
      title           : Grupa
    
Input #1, png_pipe, from 'logovideo2.png':
    
  Duration: N/A, bitrate: N/A
    
    Stream #1:0: Video: png, rgba(pc), 235x50 [SAR 2835:2835 DAR 47:10], 25 tbr, 25 tbn, 25 tbc
    
File '001.mp4' already exists. Overwrite ? [y/N] y
    
[libx264 @ 0x43c7a80] using SAR=1/1
    
[libx264 @ 0x43c7a80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
    
[libx264 @ 0x43c7a80] profile High, level 3.0
    
[libx264 @ 0x43c7a80] 264 - core 148 r2 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=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
**[mp4 @ 0x442c9e0] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
    
    Last message repeated 2 times
    
[mp4 @ 0x442c9e0] Could not find tag for codec ass in stream #2, codec not currently supported in container**
    
Output #0, mp4, to '001.mp4':
    
  Metadata:
    
    title           : DB
    
    encoder         : Lavf57.42.100
    
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 720x540 [SAR 1:1 DAR 4:3], q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)
    
    Metadata:
    
      encoder         : Lavc57.50.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    Stream #0:1(jpn): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 128 kb/s (default)
    
    Metadata:
    
      encoder         : Lavc57.50.100 aac
    
    Stream #0:2(pol): Subtitle: ass (default)
    
    Metadata:
    
      title           : Grupa
    
      encoder         : Lavc57.50.100 ass
    
Stream mapping:
    
  Stream #0:1 (h264) -> overlay:main (graph 0)
    
  Stream #1:0 (png) -> overlay:overlay (graph 0)
    
  overlay (graph 0) -> Stream #0:0 (libx264)
    
  Stream #0:0 -> #0:1 (vorbis (native) -> aac (native))
    
  Stream #0:2 -> #0:2 (ass (ssa) -> ass (native))
    
**Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument**
    
[aac @ 0x43bf600] Qavg: -nan

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