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• ffmpeg video to rtsp not working, ffmpeg is not reading the video frame by frame [closed]

  15 janvier, par Leroy Jeslyn

  Here's the ffmpeg command :

  


  gst-launch-1.0 videotestsrc ! decodebin ! videoconvert ! videoscale \
 ! video/x-raw,width=1280,height=720 ! x264enc speed-preset=ultrafast \
 tune=zerolatency ! rtph264pay ! udpsink host=127.0.0.1 port=5000 sync=false \
 ! rtspserver service=0/test


  


  The output was :

  


  ffmpeg version 7.1-full_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers                                   
  built with gcc 14.2.0 (Rev1, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-
libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth 
--enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libqui
rc --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264 
--enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libvpx --enable-mediafoundation --enable-libass --enable
-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-
cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-lib
shaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enab
le-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3 --e
nable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.100 / 61. 19.100
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Render/fire3.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp41isom
    creation_time   : 2025-01-08T13:10:15.000000Z
  Duration: 00:01:21.79, start: 0.000000, bitrate: 12799 kb/s
  Stream #0:0[0x1](und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 12798 kb/s, 14 fps, 14 tbr, 14k tbn (default)
      Metadata:
        creation_time   : 2025-01-08T13:10:15.000000Z
        handler_name    : VideoHandler
        vendor_id       : [0][0][0][0]
        encoder         : AVC Coding
[out#0/rtsp @ 00000178486d9a00] Codec AVOption b:a (set bitrate (in bits/s)) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some decoder which was not actually used for any stream.
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0000017848d200c0] using SAR=1/1
[libx264 @ 0000017848d200c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000017848d200c0] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0000017848d200c0] 264 - core 164 r3192 c24e06c - H.264/MPEG-4 AVC codec - Copyleft 2003-2024 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 d
eblock=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_q
p_offset=-2 threads=22 lookahead_threads=3 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=14 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=1000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00



  


  This is were the output stopped, instead of reading the video frame by frame, it stops here and runs indefinitely. I tried to use VLC and python script to read the rtsp url, but that didn't work.
I tried the alternative using GStreamer, but i couldn't install rtsp-server on Windows 11.

  


  Thank you for your time, any suggestion or answers are appreciated. The end goal is to convert a video to a rtsp url.

  


• MPD doesnt load ffmpeg as decoder

  10 août 2022, par dmSherazi

  I am using openwrt 21.2.3 and mpd on it. I have compile mpd full and libffmpeg full as well as ffmpeg-full packages.
But my mpd wont load ffmpeg as decoder. Also tried to force it by adding decoder { plugin “ffmpeg” enabled “no” }” line to /etc/mpd.conf

  


  below is my mpd.conf

  


  log_file "syslog"

bind_to_address "127.0.0.1"
bind_to_address "192.168.1.16"

input {
    plugin          "curl"
}

audio_output {
    type            "alsa"
    name            "sun4icodec"
    device          "plug:dmix"
    mixer_control   "Power Amplifier"
}

decoder {
     plugin  "ffmpeg"
     enabled  "yes"
}


  


  the mpd —version output is as follows

  


  Music Player Daemon 0.21.26 (v21.02.3)
Copyright 2003-2007 Warren Dukes <warren.dukes@gmail.com>
Copyright 2008-2018 Max Kellermann <max.kellermann@gmail.com>
This is free software; see the source for copying conditions.  There is NO
warranty; not even MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Database plugins:
 simple proxy upnp

Storage plugins:
 local curl


Decoders plugins:
 [mad] mp3 mp2
 [vorbis] ogg oga
 [oggflac] ogg oga
 [flac] flac
 [opus] opus ogg oga
 [faad] aac
 [pcm]

Filters:


Tag plugins:
 id3tag

Output plugins:
 shout null fifo pipe alsa pulse httpd recorder

Encoder plugins:
 null opus wave flac

Input plugins:
 file alsa curl mms

Playlist plugins:
 extm3u m3u pls xspf asx rss soundcloud flac cue embcue

Protocols:
 file:// alsa:// http:// https:// mms:// mmsh:// mmst:// mmsu://

Other features:
 epoll iconv inotify ipv6 tcp un


  


  ideally it should have something like this

  


  
Decoders plugins:
 [dsdiff] dff
 [dsf] dsf
 [ffmpeg] 16sv 3g2 3gp 4xm 8svx aa3 aac ac3 adx afc aif aifc aiff al alaw amr anim apc ape asf atrac au aud avi avm2 avs bap bfi c93 cak cin cmv cpk daud dct divx dts dv dvd dxa eac3 film flac flc fli fll flx flv g726 gsm gxf iss m1v m2v m2t m2ts m4a m4b m4v mad mj2 mjpeg mjpg mka mkv mlp mm mmf mov mp+ mp1 mp2 mp3 mp4 mpc mpeg mpg mpga mpp mpu mve mvi mxf nc nsv nut nuv oga ogm ogv ogx oma ogg omg opus psp pva qcp qt r3d ra ram rl2 rm rmvb roq rpl rvc shn smk snd sol son spx str swf tak tgi tgq tgv thp ts tsp tta xa xvid uv uv2 vb vid vob voc vp6 vmd wav webm wma wmv wsaud wsvga wv wve
 [pcm]

Filters:




  


  here are logs from mpd deamon

  


  Output of ffmpeg command

  


  
Mon Jul 25 09:40:30 2022 daemon.err mpd[1969]: exception: Error in /etc/mpd.conf line 17; Unknown tokens after '{'
Mon Jul 25 09:44:23 2022 daemon.debug mpd: vorbis: Xiph.Org libVorbis 1.3.7
Mon Jul 25 09:44:23 2022 daemon.debug mpd: opus: libopus 1.3.1-fixed
Mon Jul 25 09:44:23 2022 daemon.debug mpd: curl: version 7.82.0
Mon Jul 25 09:44:23 2022 daemon.debug mpd: curl: with mbedTLS/2.16.12


  


  ffmpeg version 4.3.3 Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 8.4.0 (OpenWrt GCC 8.4.0 r16554-1d4dea6d4f)
  configuration: --enable-cross-compile --cross-prefix=arm-openwrt-linux-muslgnueabi- --arch=arm --cpu=cortex-a7 --target-os=linux --prefix=/usr --pkg-config=pkg-config --enable-shared --enable-static --enable-pthreads --enable-zlib --disable-doc --disable-debug --disable-lzma --disable-vaapi --disable-vdpau --disable-outdevs --disable-runtime-cpudetect --enable-lto --enable-vfp --enable-neon --enable-vfp --disable-x86asm --enable-hardcoded-tables --enable-gpl --enable-version3 --enable-nonfree --disable-swscale --disable-everything --enable-encoder=ac3 --enable-encoder=jpegls --enable-encoder=mpeg1video --enable-encoder=mpeg2video --enable-encoder=pcm_s16be --enable-encoder=pcm_s16le --enable-encoder=png --enable-encoder=vorbis --enable-encoder=zlib --enable-decoder=aac --enable-decoder=ac3 --enable-decoder=alac --enable-decoder=amrnb --enable-decoder=amrwb --enable-decoder=ape --enable-decoder=flac --enable-decoder=jpegls --enable-decoder=mp2 --enable-decoder=mp3 --enable-decoder=mpeg1video --enable-decoder=mpeg2video --enable-decoder=mpeg4 --enable-decoder=mpegvideo --enable-decoder=mpc7 --enable-decoder=mpc8 --enable-decoder=pcm_s16be --enable-decoder=pcm_s16le --enable-decoder=png --enable-decoder=vorbis --enable-decoder=wavpack --enable-decoder=wmav1 --enable-decoder=wmav2 --enable-decoder=zlib --enable-muxer=ac3 --enable-muxer=mp3 --enable-muxer=mp4 --enable-muxer=mpeg1video --enable-muxer=mpeg2video --enable-muxer=mpegts --enable-muxer=ogg --enable-muxer=rtp --enable-demuxer=aac --enable-demuxer=ac3 --enable-demuxer=amr --enable-demuxer=ape --enable-demuxer=avi --enable-demuxer=flac --enable-demuxer=matroska --enable-demuxer=mov --enable-demuxer=mp3 --enable-demuxer=mpegps --enable-demuxer=mpegts --enable-demuxer=mpegvideo --enable-demuxer=mpc --enable-demuxer=mpc8 --enable-demuxer=ogg --enable-demuxer=rm --enable-demuxer=rtsp --enable-demuxer=rtp --enable-demuxer=sdp --enable-demuxer=wav --enable-demuxer=wv --enable-parser=aac --enable-parser=flac --enable-parser=ac3 --enable-parser=mpegaudio --enable-parser=mpeg4video --enable-parser=mpegvideo --enable-protocol=file --enable-protocol=http --enable-protocol=icecast --enable-protocol=pipe --enable-protocol=rtp --enable-protocol=tcp --enable-protocol=udp --enable-decoder=adpcm_ima_wav --enable-decoder=adpcm_ima_qt --enable-decoder=adpcm_ms --enable-libfdk-aac --enable-encoder=libfdk_aac --enable-libmp3lame --enable-encoder=libmp3lame --enable-libopus --enable-decoder=libopus --enable-encoder=libopus --enable-libshine --enable-encoder=libshine --disable-postproc
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswresample   3.  7.100 /  3.  7.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...


  


• Something wrong with recording video and merging audio and video by using FFmpeg

  16 mars 2014, par VaFancy

  At the beginning, I have to admit that I am a newbie in FFmpeg and also raspbian. Unfortunately, I need to solve this problem as soon as possible.

  I tried to record videos on my Raspberry PI by using PIcamera and USB webcam separately. When I used command :

  ffmpeg -t 10 -f video4linux2 -r 25 -i /dev/video0 out.h264

  However, something was very wrong because there was nothing saved in that video file. I copy the log.

  [video4linux2,v4l2 @ 0x267ad80] The driver changed the time per frame from 1/25 to 1/30
  
  Input #0, video4linux2,v4l2, from '/dev/video0':
  
    Duration: N/A, start: 37562.908020, bitrate: 147456 kb/s
  
      Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 147456 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
  
  File 'out.h264' already exists. Overwrite ? [y/N] y
  
  No pixel format specified, yuv422p for H.264 encoding chosen.
  
  Use -pix_fmt yuv420p for compatibility with outdated media players.
  
  [libx264 @ 0x267ca60] using cpu capabilities: ARMv6
  
  [libx264 @ 0x267ca60] profile High 4:2:2, level 3.0, 4:2:2 8-bit
  
  Output #0, h264, to 'out.h264':
  
    Metadata:
  
      encoder         : Lavf55.34.101
  
      Stream #0:0: Video: h264 (libx264), yuv422p, 640x480, q=-1--1, 90k tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo -> libx264)
  
  Press [q] to stop, [?] for help
  
  DTS 140730117085, next:18648459 st:0 invalid dropping00.00 bitrate=N/A    
  
  PTS 140730117085, next:18648459 invalid dropping st:0
  
  DTS 140740452429, next:6538221 st:0 invalid dropping:00.00 bitrate=N/A    
  
  PTS 140740452429, next:6538221 invalid dropping st:0
  
  frame=   44 fps=1.1 q=28.0 size=      18kB time=00:00:00.04 bitrate=3712.6kbits/
  
  frame=   45 fps=0.8 q=28.0 size=      22kB time=00:00:00.08 bitrate=2262.8kbits/
  
  frame=   46 fps=0.7 q=28.0 size=      27kB time=00:00:00.12 bitrate=1813.4kbits/
  
  frame=   47 fps=0.6 q=28.0 size=      30kB time=00:00:00.16 bitrate=1559.2kbits/
  
  frame=   48 fps=0.5 q=28.0 size=      34kB time=00:00:00.20 bitrate=1397.7kbits/
  
  frame=   49 fps=0.5 q=28.0 size=      39kB time=00:00:00.24 bitrate=1324.3kbits/
  
  frame=   50 fps=0.4 q=28.0 size=      42kB time=00:00:00.28 bitrate=1241.7kbits/ 

  As you can see, the size of each frame was only few kb and fps was so low. Thus each frame was taken by using a long time(4s in this case). Then I test my USB webcam by using command :

  ffplay -f video4linux2 /dev/video0

  The video stream which displayed on the screen was so unnatural. It looked like there was such a long delay between each frame. So the video was hardly moved. The log I have copied :

  pi@raspberrypi ~ $ ffplay -f video4linux2 /dev/video0
  
  avplay version 0.8.6-6:0.8.6-1+rpi1, Copyright (c) 2003-2013 the Libav developers
  
    built on Mar 31 2013 13:58:10 with gcc 4.6.3
  
  [video4linux2 @ 0x1ad83c0] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, video4linux2, from '/dev/video0':
  
    Duration: N/A, start: 36107.154598, bitrate: 147456 kb/s
  
      Stream #0.0: Video: rawvideo, yuyv422, 640x480, 147456 kb/s, 30 tbr, 1000k tbn, 30 tbc
  
  [avsink @ 0x1ad9960] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
  
  [scale @ 0x1ad9d20] w:640 h:480 fmt:yuyv422 -> w:640 h:480 fmt:yuv420p flags:0x4
  
  36163.33 A-V:  0.000 s:0.0 aq=    0KB vq= 3000KB sq=    0B f=8/8 

  The final problem is that no sound was added in video file when I tried to add some in. I used the command :

  avconv -i /home/pi/Desktop/test.mp4 -i /home/pi/Desktop/test.mp3 -map 0:0 -vcodec copy -map 1:0 -acodec copy output.h264

  I have checked separately that the video and audio were both able to play. However the merged file only had video but no audio. The log is shown below, it seems that the process was succeed.

  pi@raspberrypi ~ $ avconv -i /home/pi/Desktop/test.mp4 -i /home/pi/Desktop/test.mp3 -map 0:0 -vcodec copy -map 1:0 -acodec copy output.h264
  
  avconv version 0.8.6-6:0.8.6-1+rpi1, Copyright (c) 2000-2013 the Libav developers
  
    built on Mar 31 2013 13:58:10 with gcc 4.6.3
  
  [h264 @ 0x1aa6680] max_analyze_duration reached
  
  [h264 @ 0x1aa6680] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, h264, from '/home/pi/Desktop/test.mp4':
  
    Duration: N/A, bitrate: N/A
  
      Stream #0.0: Video: h264 (High), yuv420p, 640x480, 25 fps, 25 tbr, 1200k tbn, 2400k tbc
  
  [mp3 @ 0x1aaa120] Estimating duration from bitrate, this may be inaccurate
  
  Input #1, mp3, from '/home/pi/Desktop/test.mp3':
  
    Metadata:
  
      title           : We Are Legend (Original Mix)
  
      artist          : Dimitri Vegas & Like Mike & Steve Aoki
  
      album           : SPINNIN RECORDS
  
      encoded_by      : iTunes 11.1.5
  
      TBP             : 128
  
      genre           : Progressive House
  
      date            : 2013
  
    Duration: 00:00:11.14, start: 0.000000, bitrate: 191 kb/s
  
      Stream #1.0: Audio: mp3, 48000 Hz, stereo, s16, 192 kb/s
  
  File 'output.h264' already exists. Overwrite ? [y/N] y
  
  Output #0, h264, to 'output.h264':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #0.0: Video: libx264, yuv420p, 640x480, q=2-31, 90k tbn, 1200k tbc
  
      Stream #0.1: Audio: libmp3lame, 48000 Hz, stereo, 192 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #1:0 -> #0:1 (copy)
  
  Press ctrl-c to stop encoding
  
  frame=  144 fps=  0 q=-1.0 Lsize=    1684kB time=5.06 bitrate=2724.7kbits/s    
  
  video:1566kB audio:119kB global headers:0kB muxing overhead 0.000000%

  Could somebody helps me, please. And sorry for my bad english.

  BTW : When I finally captured 200 frames, it turns out all of them were green.