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• ffmpeg Windows : standard transcode produces file that "uses unsupported encoding settings" [duplicate]

  17 août 2022, par David M. Cotter

  using the basic command :

  


  ffmpeg -i infile.mp4 -vcodec libx264 -acodec aac output.mp4


  


  poduces a file that can't be played by the standard Windows Media Player app.
Is there something i'm missing ?

  


  Here is the log data.

  


  C:> \\Mac\depot\kJams\External\ffmpeg\win\bin\ffmpeg.exe -i "\\Mac\Home\Desktop\Christina lying down.AVI" -vcodec libx264 -acodec aac output.mp4
ffmpeg version git-2019-11-01-53c21c2 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20191010
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 35.101 / 56. 35.101
  libavcodec     58. 60.100 / 58. 60.100
  libavformat    58. 33.100 / 58. 33.100
  libavdevice    58.  9.100 / 58.  9.100
  libavfilter     7. 66.100 /  7. 66.100
  libswscale      5.  6.100 /  5.  6.100
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, avi, from '\\Mac\Home\Desktop\Christina lying down.AVI':
  Metadata:
    creation_time   : 2006-01-26 18:19:22
    encoder         : CanonMVI02
  Duration: 00:00:07.70, start: 0.000000, bitrate: 14928 kb/s
    Stream #0:0: Video: mjpeg (Baseline) (MJPG / 0x47504A4D), yuvj422p(pc, bt470bg/unknown/unknown), 640x480, 14896 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
    Stream #0:1: Audio: pcm_u8 ([1][0][0][0] / 0x0001), 11024 Hz, mono, u8, 88 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (pcm_u8 (native) -> aac (native))
Press [q] to stop, [?] for help
[aac @ 0f06a740] Too many bits 6408.707483 > 6144 per frame requested, clamping to max
[libx264 @ 0f068b40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0f068b40] profile High 4:2:2, level 3.0, 4:2:2, 8-bit
[libx264 @ 0f068b40] 264 - core 158 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'output.mp4':
  Metadata:
    encoder         : Lavf58.33.100
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj422p(pc), 640x480, q=-1--1, 30 fps, 1000k tbn, 30 tbc
    Metadata:
      encoder         : Lavc58.60.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 11025 Hz, mono, fltp, 66 kb/s
    Metadata:
      encoder         : Lavc58.60.100 aac
frame=  231 fps=128 q=-1.0 Lsize=    1570kB time=00:00:07.70 bitrate=1668.3kbits/s speed=4.28x
video:1514kB audio:51kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.347234%
[libx264 @ 0f068b40] frame I:2     Avg QP:24.57  size: 27076
[libx264 @ 0f068b40] frame P:60    Avg QP:26.24  size: 12693
[libx264 @ 0f068b40] frame B:169   Avg QP:27.91  size:  4342
[libx264 @ 0f068b40] consecutive B-frames:  1.7%  1.7%  1.3% 95.2%
[libx264 @ 0f068b40] mb I  I16..4:  0.6% 97.6%  1.8%
[libx264 @ 0f068b40] mb P  I16..4:  0.1% 10.6%  0.5%  P16..4: 51.1% 17.9% 10.8%  0.0%  0.0%    skip: 8.9%
[libx264 @ 0f068b40] mb B  I16..4:  0.0%  1.2%  0.0%  B16..8: 51.8%  4.4%  0.7%  direct: 6.4%  skip:35.5%  L0:48.8% L1:46.4% BI: 4.8%
[libx264 @ 0f068b40] 8x8 transform intra:95.6% inter:78.5%
[libx264 @ 0f068b40] coded y,uvDC,uvAC intra: 89.0% 85.1% 53.7% inter: 29.0% 44.7% 6.7%
[libx264 @ 0f068b40] i16 v,h,dc,p: 19% 31%  8% 42%
[libx264 @ 0f068b40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 11% 15% 33%  6%  7%  5%  9%  5%  8%
[libx264 @ 0f068b40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 21% 18%  7% 10%  6% 11%  5%  6%
[libx264 @ 0f068b40] i8c dc,h,v,p: 67% 13% 15%  5%
[libx264 @ 0f068b40] Weighted P-Frames: Y:8.3% UV:6.7%
[libx264 @ 0f068b40] ref P L0: 35.8% 10.5% 35.1% 17.4%  1.2%
[libx264 @ 0f068b40] ref B L0: 76.1% 19.2%  4.7%
[libx264 @ 0f068b40] ref B L1: 92.7%  7.3%
[libx264 @ 0f068b40] kb/s:1609.92
[aac @ 0f06a740] Qavg: 34311.295


  


  Ignore this part, Stack Overflow now requires that i type something more so it's not "mostly code"

  


• Is there a way to create a single HLS output from more than one RTMP inputs in listen mode ?

  25 novembre 2020, par Gabriele Tassoni

  I'm trying to create a single HLS output using, as inputs, different RTMP playpaths or different RTMP streams, i.e. :

  


  

  • rtmp ://ip:1935/app/key0

  


  • rtmp ://ip:1935/app/key1

  


  • rtmp ://ip:1935/app/key2

  


  


  The resulting HLS output should have video track from key0, and three audio tracks from key0, key1 and key2.

  


  I used FFMPEG, but I'm open to different open source software for the server/converter part.

  


  What I tried so far :

  


  NO RTMP approach

  


  I get in input anything thrown to a TCP port, the mp4 stream sent already has multiple audio tracks, this works well and the HLS output is correctly created, cons : it's not compatible with RTMP standard, many commercial software, like vMix, just live streams to RTMP, so I cannot use this approach.

  


  ffmpeg -y -hwaccel auto \
    -i tcp://0.0.0.0:${port}?listen \
    -map 0:0 \
    -map 0:a \
    -c:v libx264 -c:a aac -b:v 5000k -b:a 192k -vf "scale=1920:trunc(ow/a/2)*2" -tune zerolatency -preset veryfast -crf 23 -g 48 \
      -f hls -hls_time 4 -hls_playlist_type event -hls_segment_filename ${dir}/${name}/1080p_%03d.ts ${dir}/${name}/1080p.m3u8


  


  NGINX RTMP Module

  


  I used in NGINX RTMP an application which execs an ffmpeg command, cons : it doesn't work, it sits there forever, like it's waiting for something.

  


  ffmpeg -y -hwaccel auto \
        -i "rtmp://localhost:1935/mainav/$key" \
        -i "rtmp://localhost:1935/mainav/$name:lang:$lang" \
        -map 0:v:0 -map 0:a:0 -metadata:s:a:0 "language=$default" \
        -map "1:a:0" -metadata:s:a:1 "language=$lang" \
        -c:v libx264 -c:a aac -b:v 5000k -b:a 192k -vf "scale=1920:trunc(ow/a/2)*2" -tune zerolatency -preset veryfast -crf 23 -g 48 \
        -f hls -hls_time 4 -hls_playlist_type event -hls_segment_filename "${dir}/${name}/1080p_%03d.ts" "${dir}/${name}/1080p.m3u8"



  


  FFMPEG Listener

  


  Quite similar to the NGINX version, but without NGINX, going raw on bare ffmpeg server capabilities. Cons : it doesn't work, just throws an I/O Error as soon as the client connects.

  


  ffmpeg -y -hwaccel auto \
            -listen 1 -i "rtmp://0.0.0.0:1935/mainav/$key" \
            -listen 1 -i "rtmp://0.0.0.0:1935/mainav/$name:lang:$lang" \
            -map 0:v:0 -map 0:a:0 -metadata:s:a:0 "language=$default" \
            -map "1:a:0" -metadata:s:a:1 "language=$lang" \
            -c:v libx264 -c:a aac -b:v 5000k -b:a 192k -vf "scale=1920:trunc(ow/a/2)*2" -tune zerolatency -preset veryfast -crf 23 -g 48 \
            -f hls -hls_time 4 -hls_playlist_type event -hls_segment_filename "${dir}/${name}/1080p_%03d.ts" "${dir}/${name}/1080p.m3u8"


  


  Client used for tests

  


  I used an ffmpeg which reads a file from my disk and sends to different RTMP playpaths :

  


  ffmpeg -y -hwaccel auto -re \
    -i /home/me/Videos/xm.mkv \
    -map 0:v:0 \
    -map 0:a:0 \
    -f flv rtmp://localhost:1935/mainav/thebiglive:default:ita \
    -map 0:a:1 \
    -f flv rtmp://localhost:1935/mainav/thebiglive:lang:eng


  


  I feel a bit clueless now. The only working solution is not a standard one taken into account the common live encoders found in the market. Anyone has a pointer for which direction I can take ?

  


  Thanks

  


• FFPMEG : stream local video to UDP address, make client aware about video length and current frame time offset (make stream seekable ?)

  17 décembre 2014, par klim

  Just started to use FFMPEG. This is a really great library which is capable of video life transcoding and streaming.

  I use following commands to transcode and stream local video file to UDP address :
  ffmpeg -y -re -i inputvideo.mpeg2 -vsync 1 -vcodec mpeg4 -b 1600k -r 15 -crf 20 -acodec aac -ar 44100 -strict -2 -f mpegts udp ://192.168.1.30:1234

  It works smooth. I can open this udp address in VLC player and play life stream.

  Does anybody know how to make client aware about video duration and current time stamp ?

  Ideally would be nice to make stream seekable, as far as I understand it is not possible, but at least I would like to tell VLC client the total duration of the video and current frame time stamp, so it could show the progress.

  Thanks.