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• How to preserve data stream with none codec from a video while compressing it using ffmpeg ?

  5 octobre 2022, par rj_7

  I'm using the following command to compress a video of size 1.5GB to 80 MB.

  


  ffmpeg -i input.mp4 -copy_unknown -map_metadata 0 -c copy -c:v h264 -b:v 5000k -c:a aac -b:a 48k -map 0:v -map 0:a -map 0:d output.mp4


  


  The problem I'm facing is - it doesn't copy the data stream to the output video even when I explicitly mention it via mapping. If I don't use the -map options for each kind of stream, it just process the video and audio as expected. But I also want the data stream in my output video.

  


  The logs for the above command are -

  


  ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20200122
  configuration: --disable-static --enable-shared --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-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000022581bc0f80] stream 0, timescale not set
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42mp41isomiso2
    creation_time   : 2021-09-16T16:10:08.000000Z
    artist          : AnafiThermal-H006560
    title           : Thu, 16 Sep 2021 09:10:08 -0700
    date            : 2021-09-16T09:10:08-07:00
    make            : Parrot
    model           : AnafiThermal
    encoder         : PI040445AC0H006560
    location        : +33.67128695-117.61610583+415.50/
    com.apple.quicktime.artist: AnafiThermal-H006560
    com.apple.quicktime.title: Thu, 16 Sep 2021 09:10:08 -0700
    com.apple.quicktime.creationdate: 2021-09-16T09:10:08-07:00
    com.apple.quicktime.make: Parrot
    com.apple.quicktime.model: AnafiThermal
    com.apple.quicktime.software: 1.8.0
    com.apple.quicktime.location.ISO6709: +33.67128695-117.61610583+415.50/
    com.parrot.model.id: 0919
    com.parrot.serial: PI040445AC0H006560
    com.parrot.build.id: anafi-thermal-1.8.0
    com.parrot.run.date: 2021-09-16T09:04:29-07:00
    com.parrot.run.id: 0B3D536B2F1A425EFA8978850B4C2C71
    com.parrot.boot.id: 992D5FBA74A04BA5077C3FCA3BE9C707
    com.parrot.video.mode: Standard
  Duration: 00:02:05.49, start: 0.000000, bitrate: 100391 kb/s
    Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 3840x2160 [SAR 1:1 DAR 16:9], 99998 kb/s, 29.98 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    Metadata:
      creation_time   : 2021-09-16T16:10:08.000000Z
      handler_name    : DefaultVideo
    Stream #0:1(eng): Data: none (mett / 0x7474656D), 27 kb/s (default)
    Metadata:
      creation_time   : 2021-09-16T16:10:08.000000Z
      handler_name    : ParrotVideoMetadata
    Stream #0:2(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 384 kb/s (default)
    Metadata:
      creation_time   : 2021-09-16T16:10:08.000000Z
      handler_name    : DefaultAudio
    Stream #0:3: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 320x180 [SAR 1:1 DAR 16:9], 90k tbr, 90k tbn, 90k tbc (attached pic)
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:3 -> #0:1 (mjpeg (native) -> h264 (libx264))
  Stream #0:2 -> #0:2 (aac (native) -> aac (native))
  Stream #0:1 -> #0:3 (copy)
Press [q] to stop, [?] for help
[mp4 @ 0000022581c5e280] Frame rate very high for a muxer not efficiently supporting it.
Please consider specifying a lower framerate, a different muxer or -vsync 2
[libx264 @ 0000022582975a00] using SAR=1/1
[libx264 @ 0000022582975a00] MB rate (21600000) > level limit (16711680)
[libx264 @ 0000022582975a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000022582975a00] profile High, level 6.2, 4:2:0, 8-bit
[libx264 @ 0000022582975a00] 264 - core 159 - 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=6 lookahead_threads=1 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=abr mbtree=1 bitrate=5000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[libx264 @ 000002258241c980] using SAR=1/1
[libx264 @ 000002258241c980] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000002258241c980] profile High, level 5.1, 4:2:0, 8-bit
[libx264 @ 000002258241c980] 264 - core 159 - 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=abr mbtree=1 bitrate=5000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[mp4 @ 0000022581c5e280] Could not find tag for codec h264 in stream #1, codec not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Error initializing output stream 0:0 --
[libx264 @ 000002258241c980] final ratefactor: 25.51
[libx264 @ 0000022582975a00] final ratefactor: 73.59
[aac @ 00000225829747c0] Qavg: 63100.754
[aac @ 00000225829747c0] 2 frames left in the queue on closing
Conversion failed!


  


  I've also tried mapping the streams via number, that doesn't work either (shows same logs as above).

  


  ffmpeg -i input.mp4 -copy_unknown -map_metadata 0 -c copy -c:v h264 -b:v 5000k -c:a aac -b:a 48k -map 0:0 -map 0:1 -map 0:2 output.mp4


  


  So, essentially my question is - How to preserve data stream (packed) with none codec from a video while compressing it using ffmpeg ?

  


• FFmpeg - sharpening the high pass filter

  11 août 2024, par kubinka0505

  I'm writing the command that is resampling the audio file and adding the high-pass filter to it.

  


  In the software that I'm using, the high pass filter is very sharp - the problem is that I don't know how to sharpify the filter in FFmpeg.

  


  I've experimented with some options but none succeded. How can I achieve that ?

  


  ffmpeg -i "Audio.wav" -ar 44100 -af highpass=f=5000 "Audio_HP.wav" -y


  


  





  


  


  


  


  



  


  


  


  


  What FFmpeg does	What I want

  


• Extract Video Frames from SDP Output

  1er août 2022, par user1446797

  Does anyone know how to extract image frames from a SDP video output ? I'm using a Nest battery camera. The wired version gave me an RTSP stream which was easy to extract frames. However, the battery version gave me a SDP output which is hard to make sense of. I've looked at a few posts on stackoverflow but none seemed too promising :

  


  How to use the answerSDP returned from sdm.devices.commands.CameraLiveStream.GenerateWebRtcStream to establish a stream with google nest cam

  


  Executing FFmpeg recording using in-line SDP

  


  Even being able to stream SDP to a mp4 file using ffplay would be a nice start. But ultimately I would like to run a python script to extract frames from SDP output.

  


  I must admit, SDP (session description protocol) seems pretty long and complicated compared to working with RTSP streams. Anyway to simply convert an SDP stream to a RTSP stream ?

  


  https://andrewjprokop.wordpress.com/2013/09/30/understanding-session-description-protocol-sdp/

  


  Thanks !
Jacob

  


  SDP output looks something like this :

  


  v=0\r\no=- 0 2 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\na=group:BUNDLE 0 2 1\r\na=msid-semantic : WMS 16733765853514488918/633697675 virtual-6666\r\na=ice-lite\r\nm=audio 19305 UDP/TLS/RTP/SAVPF 111\r\nc=IN IP4 142.250.9.127\r\na=rtcp:9 IN IP4 0.0.0.0\r\na=candidate : 1 udp 2113939711 2607:f8b0:4002:c11::7f 19305 typ host generation 0\r\na=candidate : 1 tcp 2113939710 2607:f8b0:4002:c11::7f 19305 typ host tcptype passive generation 0\r\na=candidate : 1 ssltcp 2113939709 2607:f8b0:4002:c11::7f 443 typ host generation 0\r\na=candidate : 1 udp 2113932031 142.250.9.127 19305 typ host generation 0\r\na=candidate : 1 tcp 2113932030 142.250.9.127 19305 typ host tcptype passive generation 0\r\na=candidate : 1 ssltcp 2113932029 142.250.9.127 443 typ host generation 0\r\na=ice-ufrag:UVDO0GOJASABT95E\r\na=ice-pwd:FRILJDCJZCH+51YNWDGZIN0K\r\na=fingerprint:sha-256 24:53:14:34:59:50:89:52:72:58:04:57:71:BB:C4:89:91:3A:52:EF:C0:5A:A5:EC:B5:51:64:80:AC:13:89:8A\r\na=setup:passive\r\na=mid:0\r\na=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level\r\na=extmap:3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01\r\na=sendrecv\r\na=msid:virtual-6666 virtual-6666\r\na=rtcp-mux\r\na=rtpmap:111 opus/48000/2\r\na=rtcp-fb:111 transport-cc\r\na=fmtp:111 minptime=10 ;useinbandfec=1\r\na=ssrc:6666 cname:6666\r\nm=video 9 UDP/TLS/RTP/SAVPF 108 109\r\nc=IN IP4 0.0.0.0\r\na=rtcp:9 IN IP4 0.0.0.0\r\na=ice-ufrag:UVDO0GOJASABT95E\r\na=ice-pwd:FRILJDCJZCH+51YNWDGZIN0K\r\na=fingerprint:sha-256 24:53:14:34:59:50:89:52:72:58:04:57:71:BB:C4:89:91:3A:52:EF:C0:5A:A5:EC:B5:51:64:80:AC:13:89:8A\r\na=setup:passive\r\na=mid:1\r\na=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\na=extmap:13 urn:3gpp:video-orientation\r\na=extmap:3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01\r\na=sendrecv\r\na=msid:16733765853514488918/633697675 16733765853514488918/633697675\r\na=rtcp-mux\r\na=rtpmap:108 H264/90000\r\na=rtcp-fb:108 transport-cc\r\na=rtcp-fb:108 ccm fir\r\na=rtcp-fb:108 nack\r\na=rtcp-fb:108 nack pli\r\na=rtcp-fb:108 goog-remb\r\na=fmtp:108 level-asymmetry-allowed=1 ;packetization-mode=1 ;profile-level-id=42e01f\r\na=rtpmap:109 rtx/90000\r\na=fmtp:109 apt=108\r\na=ssrc-group:FID 633697675 3798748564\r\na=ssrc:633697675 cname:633697675\r\na=ssrc:3798748564 cname:633697675\r\nm=application 9 DTLS/SCTP 5000\r\nc=IN IP4 0.0.0.0\r\na=ice-ufrag:UVDO0GOJASABT95E\r\na=ice-pwd:FRILJDCJZCH+51YNWDGZIN0K\r\na=fingerprint:sha-256 24:53:14:34:59:50:89:52:72:58:04:57:71:BB:C4:89:91:3A:52:EF:C0:5A:A5:EC:B5:51:64:80:AC:13:89:8A\r\na=setup:passive\r\na=mid:2\r\na=sctpmap:5000 webrtc-datachannel 1024\r\n