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• avformat/rtsp : Send mode=record instead of mode=receive in Transport header

  15 janvier 2024, par Paul Orlyk

  avformat/rtsp : Send mode=record instead of mode=receive in Transport header
  Fixes server compatibility issues with rtspclientsink GStreamer plugin.
  >From specification :
  
  RFC 7826 "Real-Time Streaming Protocol Version 2.0" (https://datatracker.ietf.org/doc/html/rfc7826), section 18.54 :
  
     mode : The mode parameter indicates the methods to be supported for
  
           this session.  The currently defined valid value is "PLAY".  If
  
           not provided, the default is "PLAY".  The "RECORD" value was
  
           defined in RFC 2326 ; in this specification, it is unspecified
  
           but reserved.  RECORD and other values may be specified in the
  
           future.
  
  RFC 2326 "Real Time Streaming Protocol (RTSP)" (https://datatracker.ietf.org/doc/html/rfc2326), section 12.39 :
  
     mode :
  
            The mode parameter indicates the methods to be supported for
  
            this session. Valid values are PLAY and RECORD. If not
  
            provided, the default is PLAY.
  mode=receive was always like this, from the initial commit 'a8ad6ffa rtsp : Add listen mode'.
  For comparison, Wowza was used to push RTSP stream to. Both GStreamer and FFmpeg had no issues.
  
  Here is the capture of Wowza responding to SETUP request :
  
  200 OK
  
  CSeq : 3
  
  Server : Wowza Streaming Engine 4.8.26+4 build20231212155517
  
  Cache-Control : no-cache
  
  Expires : Mon, 15 Jan 2024 19:40:31 GMT
  
  Transport : RTP/AVP/UDP ;unicast ;client_port=11640-11641 ;mode=record ;source=172.17.0.2 ;server_port=6976-6977
  
  Date : Mon, 15 Jan 2024 19:40:31 GMT
  
  Session : 1401457689 ;timeout=60
  Test setup :
  
      Server : ffmpeg -loglevel trace -y -rtsp_flags listen -i rtsp ://0.0.0.0:30800/live.stream t.mp4
  
      FFmpeg client : ffmpeg -re -i "Big Buck Bunny - FULL HD 30FPS.mp4" -c:v libx264 -f rtsp rtsp ://127.0.0.1:30800/live.stream
  
      GStreamer client : gst-launch-1.0 videotestsrc is-live=true pattern=smpte ! queue ! videorate ! videoscale ! video/x-raw,width=640,height=360,framerate=60/1 ! timeoverlay font-desc="Sans, 84" halignment=center valignment=center ! queue ! videoconvert ! tee name=t t. ! x264enc bitrate=9000 pass=cbr speed-preset=ultrafast byte-stream=false key-int-max=15 threads=1 ! video/x-h264,profile=baseline ! queue ! rsink. audiotestsrc ! voaacenc ! queue ! rsink. t. ! queue ! autovideosink rtspclientsink name=rsink location=rtsp ://localhost:30800/live.stream
  Test results :
  
  modified FFmpeg client -> stock server : ok
  
  stock FFmpeg client    -> modified server : ok
  
  modified FFmpeg client -> modified server : ok
  
  GStreamer client       -> modified server : ok
  Signed-off-by : Paul Orlyk <paul.orlyk@gmail.com>
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/rtspdec.c

• FFMPEG, How to stream video and audio into one file with volume adjustment and video cropping [closed]

  24 décembre 2024, par Unlock iPhone

  ffmpeg -i "1.mp4" -i "Knockout.mp3" -filter_complex "[0:a]volume=0.1,atempo=1.1[a] ;[1:a]volume=1[b] ;[a][b]amix=inputs=2[audio]" -filter_complex "setpts=PTS/1.1,crop='min(iw\,ih1/1)' :'min(ih\,iw1/1)" -c:v libx264 -preset ultrafast -tune fastdecode -crf 20 -c:a aac -b:a 128k -r 30 -strict experimental -shortest "Output_00001.mp4"

  


  ffmpeg -i "1.mp4" -i "Knockout.mp3" -filter_complex "[0:a]volume=0.1,atempo=1.1[a] ;[1:a]volume=1[b] ;[a][b]amix=inputs=2[audio]" -filter_complex "setpts=PTS/1.1,crop='min(iw\,ih1/1)' :'min(ih\,iw1/1)" -c:v libx264 -preset ultrafast -tune fastdecode -crf 20 -c:a aac -b:a 128k -r 30 -strict experimental -shortest "Output_00001.mp4"
ffmpeg version 2024-12-19-git-494c961379-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-libquirc —enable-libuavs3d —enable-libxevd —enable-libzvbi —enable-libqrencode —enable-librav1e —enable-libsvtav1 —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-libshaderc —enable-vulkan —enable-libplacebo —enable-opencl —enable-libcdio —enable-libgme —enable-libmodplug —enable-libopenmpt —enable-libopencore-amrwb —enable-libmp3lame —enable-libshine —enable-libtheora —enable-libtwolame —enable-libvo-amrwbenc —enable-libcodec2 —enable-libilbc —enable-libgsm —enable-liblc3 —enable-libopencore-amrnb —enable-libopus —enable-libspeex —enable-libvorbis —enable-ladspa —enable-libbs2b —enable-libflite —enable-libmysofa —enable-librubberband —enable-libsoxr —enable-chromaprint
libavutil 59. 51.100 / 59. 51.100
libavcodec 61. 27.101 / 61. 27.101
libavformat 61. 9.101 / 61. 9.101
libavdevice 61. 4.100 / 61. 4.100
libavfilter 10. 6.101 / 10. 6.101
libswscale 8. 12.100 / 8. 12.100
libswresample 5. 4.100 / 5. 4.100
libpostproc 58. 4.100 / 58. 4.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4' :
Metadata :
minor_version : 512
major_brand : isom
compatible_brands : isomiso2avc1mp41
metadata1 : TC1nO7kRGA2g5D7EvY6mVieKMGAICBrUodQ2askGrBS9jYT4Vj3PxKPaPJbSJiYW312zpE9OA+GfQsSmsg/l0YPpVbGHSS0k1WWlIhavn4vgaEjIiMMw5ES5FyQ6NBpt9K1YOSiIg6IEc4CgvXCVgyI5VVvX9u053QTky2KsdRNRA32Ui1XkoBTAB
metadata0 : ChtzZWN1cml0eS5rbGluZy5tZXRhX2VuY3J5cHQS8AGDblTacnE/fscfVL6m9on8gh3O9gP57LnH5Gi3m5WuoRauKnAkpgZgCqmDNvDCKcv7WjIn6u+WSNAu60xW9WLkiOodDgOO2LkcD3RQmNE435FJW7rzQGPQCWEORRjI73eTSQLHggb3O876An7Ho7eHOiOljlsdEkvPDRIGlAwfn5QZKj43rdvl4q6p0lL1Wjb6qGjdvX0e6QTI1dT9qdr
encoder : Lavf58.45.100
Duration : 00:00:10.04, start : 0.000000, bitrate : 16952 kb/s
Stream #0:00x1 : Video : h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1080x1920, 16948 kb/s, 24 fps, 24 tbr, 12288 tbn (default)
Metadata :
handler_name : VideoHandler
vendor_id : [0][0][0][0]
Input #1, mp3, from 'Knockout.mp3' :
Metadata :
encoder : Lavf61.5.101
Duration : 00:02:14.54, start : 0.023021, bitrate : 131 kb/s
Stream #1:0 : Audio : mp3 (mp3float), 48000 Hz, stereo, fltp, 131 kb/s
Metadata :
encoder : Lavc61.12
[fc#0 @ 0000025538b16280] Stream specifier ':a' in filtergraph description [0:a]volume=0.1,atempo=1.1[a] ;[1:a]volume=1[b] ;[a][b]amix=inputs=2[audio] matches no streams.
Error binding filtergraph inputs/outputs : Invalid argument

  


• Reduce ffmpeg CPU usage with h265 [closed]

  23 septembre 2024, par Neskelogth

  I have a video file to convert using ffmpeg on Ubuntu 22.04. The input uses the codec h264 and I want to convert it to h265 (mainly for storage capacity reasons). The output of ffmpeg -version is

  


  ffmpeg version N-113725-g37702e2066 Copyright (c) 2000-2024 the FFmpeg developers
built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04)
configuration: --enable-nonfree --enable-cuda-nvcc --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64 --disable-static --enable-shared --enable-libx265 --enable-gpl
libavutil      58. 39.100 / 58. 39.100
libavcodec     60. 39.101 / 60. 39.101
libavformat    60. 21.101 / 60. 21.101
libavdevice    60.  4.100 / 60.  4.100
libavfilter     9. 17.100 /  9. 17.100
libswscale      7.  6.100 /  7.  6.100
libswresample   4. 13.100 /  4. 13.100
libpostproc    57.  4.100 / 57.  4.100


  


  I saw online that one of the options of ffmpeg is -threads, but apparently it does not work, since using ffmpeg -i input.mp4 -c:v libx265 -c:a copy output.mp4 and ffmpeg -i input.mp4 -c:v libx265 -c:a copy -threads 2 output.mp4 seem to be exactly the same in terms of CPU usage as shown by htop. Is there something wrong in my usage of -threads ?