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• ffmpeg 4.1.4 wav to mp3 error of "deprecated pixel format used" [on hold]

  26 août 2019, par yang jia

  [swscaler @ 0xc946d000] deprecated pixel format used, make sure you did set range correctly
  
  
  
   [mp3 @ 0xc9621600] Frame rate very high for a muxer not efficiently supporting it.
  
  
  
      Please consider specifying a lower framerate, a different muxer or -vsync 2
  
  
  
   [auto_resampler_0 @ 0xd8e73be0] [SWR @ 0xc8058000] Output channel layout '6 channels (FLC+BC+SL+SR+TC+TFL)' is not supported
  
  
  
  [auto_resampler_0 @ 0xd8e73be0] Failed to configure output pad on auto_resampler_0
  
  
  
  Error reinitializing filters!
  
  
  
  Failed to inject frame into filter network: Invalid argument
  
   Error while processing the decoded data for stream #0:0
  
   --------- beginning of crash
  
  2019-02-26 16:04:58.368 27737-27737/com.blplayer.jbl.blplayer A/libc: Fatal signal 7 (SIGBUS), code 1, fault addr 0xc5ca in tid 27737 (er.jbl.blplayer)

  cmd

   ffmpeg -i test.wav  -acodec libmp3lame -ar 8000 -ac 2 -y wav2mp3.mp3

  This is the log :

  

  then on Mac it success egg
  ffmpeg -i input.wav -vn -ar 44100 -ac 2 -b:a 192k output.mp3

  Guessed Channel Layout for Input Stream #0.0 : stereo
  Input #0, wav, from ’input.wav’ :
  Metadata :
  encoder : Lavf58.20.100
  Duration : 00:02:08.29, bitrate : 256 kb/s
  Stream #0:0 : Audio : pcm_s16le (1[0][0][0] / 0x0001), 8000 Hz, stereo, s16, 256 kb/s
  Stream mapping :
  Stream #0:0 -> #0:0 (pcm_s16le (native) -> mp3 (libmp3lame))

  Output #0, mp3, to ’output.mp3’ :
  Metadata :
  TSSE : Lavf58.31.104
  Stream #0:0 : Audio : mp3 (libmp3lame), 44100 Hz, stereo, s16p, 192 kb/s
  Metadata :
  encoder : Lavc58.55.101 libmp3lame

  but on android it gets error

• Using Unicast RTSP URIs via ffmpeg

  6 août 2019, par Chris Marshall

  I’m fairly new to ffmpeg, so I’d certainly appreciate being given an "M" to "RTFM." The ffmpeg docs are...not-so-easy...to navigate, but I’m trying.

  The goal is to develop a compiled server that incorporates ffmpeg, but first, I need to get it working via CLI.

  I have a standard AXIS Surveillance camera (AXIS M5525-E), set up as an ONVIF device (but that isn’t really relevant to this issue).

  When I query it, I get the following URI as its video streaming URI :

  rtsp://192.168.4.12/onvif-media/media.amp?profile=profile_1_jpeg&streamtype=unicast

  The IP is local to a sandboxed network.

  I add the authentication parameters to it, like so :

  rtsp://<login>:<password>@192.168.4.12/onvif-media/media.amp?profile=profile_1_jpeg&amp;streamtype=unicast
  
  </password></login>

  (Yeah, I know that’s not secure, but this is just for testing and feasibility study. The whole damn sandbox is an insecure mess).

  Now, if I use VLC to open the URI, it works great (of course). Looking at it with a packet analyzer, I see the following negotiation between the device and my computer (at .2 - Clipped for brevity) :

  Id = 11
  
  Source = 192.168.4.12
  
  Destination = 192.168.4.2
  
  Captured Length = 82
  
  Packet Length = 82
  
  Protocol = TCP
  
  Date Received = 2019-08-06 12:18:37 +0000
  
  Time Delta = 1.342024087905884
  
  Information = 554 -> 53755 ([ECN, ACK, SYN], Seq=696764098, Ack=3139240483, Win=28960)
  
                      °
  
                      °
  
                      °
  
  Id = 48
  
  Source = 192.168.4.12
  
  Destination = 192.168.4.2
  
  Captured Length = 366
  
  Packet Length = 366
  
  Protocol = TCP
  
  Date Received = 2019-08-06 12:18:38 +0000
  
  Time Delta = 2.09382700920105
  
  Information = 554 -> 53755 ([ACK, PUSH], Seq=696765606, Ack=3139242268, Win=1073)

  Followed immediately by UDP stream packets.

  If, however, I feed the same URI to ffmpeg :

  ffmpeg -i rtsp://<login>:<password>@192.168.4.12/onvif-media/media.amp?profile=profile_1_jpeg&amp;streamtype=unicast -c:v libx264 -crf 21 -preset veryfast -g 30 -sc_threshold 0 -f hls -hls_time 4 /Volumes/Development/webroot/fftest/stream.m3u8
  
  </password></login>

  I get nothing. No negotiation at all between the device and my computer.

  After that, if I then remove the &streamtype=unicast argument, I get a negotiation, and a stream :

  Id = 10
  
  Source = 192.168.4.12
  
  Destination = 192.168.4.2
  
  Captured Length = 82
  
  Packet Length = 82
  
  Protocol = TCP
  
  Date Received = 2019-08-06 10:37:48 +0000
  
  Time Delta = 3.047425985336304
  
  Information = 554 -> 49606 ([ECN, ACK, SYN], Seq=457514925, Ack=2138974173, Win=28960)
  
                      °
  
                      °
  
                      °
  
  Id = 31
  
  Source = 192.168.4.12
  
  Destination = 192.168.4.2
  
  Captured Length = 345
  
  Packet Length = 345
  
  Protocol = TCP
  
  Date Received = 2019-08-06 10:37:49 +0000
  
  Time Delta = 3.840152025222778
  
  Information = 554 -> 49606 ([ACK, PUSH], Seq=457516393, Ack=2138975704, Win=1039)

  I will, of course, be continuing to work out why this is [not] happening, and will post any solutions that I find, but, like I said, I’m fairly new to this, so it’s entirely possible that I’m missing some basic stuff, and would appreciate any guidance.

  Thanks !

• split quadri audio file into 4 monos

  23 août 2019, par user2216280

  I have a quadri audio file (one stream of 4tracks) and I would like to make 4 monos track from that stream/

  ffmpeg -i TRACK-026.wav -filter_complex "channelsplit=channel_layout=4[Perche][MixHf][hf1][hf2]" -map "[Perche]" perche.wav -map "[MixHF]" MixHF.wav -map "[hf1]" hf1.wav -map "[hf2]" hf2.wav

  here’s the full log :

  Guessed Channel Layout for Input Stream #0.0 : 4.0
  
  Input #0, wav, from 'TRACK-026.wav':
  
    Metadata:
  
  comment         : sSPEED=030.000-ND
  
                  : sTAKE=026
  
                  : sUBITS=$00000000
  
                  : sSWVER=2.10.71
  
                  : sSCENE=Track
  
                  : sFILENAME=TRACK-026.WAV
  
                  : sTAPE=190822
  
                  : sCIRCLED=FALSE
  
                  : sTRK1=Perche
  
                  : sTRK2=MixHF
  
                  : sTRK4=hf1
  
                  : sTRK5=hf2
  
                  : sNOTE=
  
                  :
  
  encoded_by      : SoundDev: MixPre-10T QD031734201
  
  originator_reference: USSDVQD0317342017190822DQR000101
  
  date            : 2019-08-22
  
  creation_time   : 13:26:54
  
  time_reference  : 0
  
  coding_history  : A=PCM,F=48000,W=24,M=multi,R=48000,T=4 Ch
  
                  :
  
  Duration: 00:32:19.35, bitrate: 4608 kb/s
  
  Stream #0:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 4.0, s32 (24 bit), 4608 kb/s
  
  [AVFilterGraph @ 000002293f28d500] No output pad can be associated to link label 'MixHf'.
  
  Error initializing complex filters.
  
  Invalid argument