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• Video Encoded using FFmpeg is not being played in Azure Kinect Viewer

  4 octobre 2023, par Ashutosh Singla

  I captured a video using a Kinect Azure SDK device and extracted the RGB (Color) track using MKVToolNIX. I could playback this RGB track using Azure Kinect Viewer (v.1.4.1). However, when I encode a video using FFmpeg, the command is given below. I can not playback the video using Azure Kinect Viewer. I get a message :

  


  


  Failed to open Recording

  


  


  ffmpeg -i .\RGB.mkv -c:v libx264 -preset veryfast -crf 18 -c:a aac -b:a 128k RGG_Enc.mkv


  


  I tried with different codecs (H.264, H.265, VP9, VP10, MJPEG) and different settings, but could not play the video in Azure Kinect Viewer. Can someone suggest to me what to do ?

  


  Here is the output of the FFprobe for the original video.

  


    C:\Users\Ashutosh\Desktop\RGB_Encoding> ffprobe -i .\RGB.mkv
  ffprobe version 6.0-full_build-www.gyan.dev Copyright (c) 2007- 
 2023 the FFmpeg developers
 built with gcc 12.2.0 (Rev10, 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-libdav1d --enable-libdavs2 --enable- 
 libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 -- 
 enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 
 --enable-libxvid --enable-libaom --enable-libjxl --enable- 
 libopenjpeg --enable-libvpx --enable-mediafoundation --enable- 
 libass --enable-frei0r --enable-libfreetype --enable-libfribidi -- 
 enable-liblensfun --enable-libvidstab --enable-libvmaf --enable- 
 libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable- 
 ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable- 
 dxva2 --enable-libvpl --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-libilbc --enable- 
 libgsm --enable-libopencore-amrnb --enable-libopus --enable- 
 libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b -- 
 enable-libflite --enable-libmysofa --enable-librubberband -- 
 enable-libsoxr --enable-chromaprint

 libavutil      58.  2.100 / 58.  2.100
 libavcodec     60.  3.100 / 60.  3.100
 libavformat    60.  3.100 / 60.  3.100
 libavdevice    60.  1.100 / 60.  1.100
 libavfilter     9.  3.100 /  9.  3.100
 libswscale      7.  1.100 /  7.  1.100
 libswresample   4. 10.100 /  4. 10.100
 libpostproc    57.  1.100 / 57.  1.100

 [matroska,webm @ 0000018ef5f4e240] Could not find codec parameters 
 for stream 1 (Attachment: none): unknown codec
 Consider increasing the value for the 'analyzeduration' (0) and 
 'probesize' (5000000) options

 Input #0, matroska,webm, from '.\RGB.mkv':
 Metadata:
 title           : Azure Kinect
 encoder         : libebml v1.4.4 + libmatroska v1.7.1
 creation_time   : 2023-08-04T11:52:43.000000Z
 Duration: 00:00:40.03, start: 0.033000, bitrate: 126708 kb/s
 Stream #0:0(eng): Video: mjpeg (Baseline) (MJPG / 0x47504A4D), 
 yuvj422p(pc, bt470bg/unknown/unknown), 2048x1536, SAR 1:1 DAR 4:3, 
 30 fps, 30 tbr, 1k tbn (default)
 
 Metadata:
 title           : COLOR
  BPS             : 126696930
  DURATION        : 00:00:40.029000000
  NUMBER_OF_FRAMES: 1201
  NUMBER_OF_BYTES : 633943931
  _STATISTICS_WRITING_APP: mkvmerge v76.0 ('Celebration') 64-bit
  _STATISTICS_WRITING_DATE_UTC: 2023-08-04 11:52:43
  _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES

Stream #0:1: Attachment: none
Metadata:
  filename        : calibration.json
  mimetype        : application/octet-stream
 Unsupported codec with id 0 for input stream 1

     


  


  This example video contains only one channel (RGB) from the original video. I am able to play this video using Azure Kinect Viewer.

  


• no access to m3u8 when using ffmpeg [closed]

  7 octobre 2023, par asd

  I have a code that allows me to download videos from .m3u8, but for some reason it hasn't worked since yesterday

  


  ffmpeg -user_agent "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36" -headers "Referer: https://upstream.to/" -i "https://s92.upstreamcdn.co/hls2/01/03509/wc3i5yhdfgyk_o/master.m3u8?t=M9p8oTpo_LgYLnh2Ay4UEOT6Szltp5vGepiZ09ZjnFo&s=1696668614&e=10800&f=17548793&i=169.150&sp=0" -c copy -bsf:a aac_adtstoasc "name.mp4"


  


  what can I do to make it similar to the upstream task which looks like this

  


  Request URL:https://s92.upstreamcdn.co/hls2/01/03509/wc3i5yhdfgyk_o/master.m3u8?t=M9p8oTpo_LgYLnh2Ay4UEOT6Szltp5vGepiZ09ZjnFo&s=1696668614&e=10800&f=17548793&i=169.150&sp=0
Request Method: GET
Status Code:    200 OK
Remote Address: 164.132.163.19:443
Referrer Policy:    strict-origin-when-cross-origin
Access-Control-Allow-Origin:    *
Cache-Control:  max-age=8640000
Cache-Control:  public, no-transform
Connection: keep-alive
Content-Encoding:   gzip
Content-Type:   application/vnd.apple.mpegurl
Date:   Sat, 07 Oct 2023 08:50:16 GMT
Expires:    Mon, 15 Jan 2024 08:50:16 GMT
Last-Modified:  Sat, 07 Oct 2023 08:50:16 GMT
Server: nginx

Transfer-Encoding:chunked
Accept:*/*
Accept-Encoding:gzip, deflate, br
Accept-Language:pl-PL,pl;q=0.9,en-US;q=0.8,en;q=0.7
Connection:keep-alive
Host:s92.upstreamcdn.co
Origin:https://upstream.to
Referer:https://upstream.to/
Sec-Ch-Ua:"Google Chrome";v="117", "Not;A=Brand";v="8", "Chromium";v="117"
Sec-Ch-Ua-Mobile:?0
Sec-Ch-Ua-Platform:"Windows"
Sec-Fetch-Dest:empty
Sec-Fetch-Mode:cors
Sec-Fetch-Site:cross-site
User-Agent:Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36


  


• Subtitles come too early in ts file [closed]

  6 octobre 2023, par kallelo

  I have recorded a movie with my SAT-recorder on harddisk. The movie is in french and has subtitles in several languages. I cutted the ts-file and removed all subtitles except german wit tsdoctor. Sometimes later I noticed that the subtitles come about four seconds too early. Unfortunately I had deleted the original file until then.

  


  ffprobe shows the following output :

  


  ffprobe version 6.0-essentials_build-www.gyan.dev Copyright (c) 2007-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
...
Input #0, mpegts, from 'inputfile.ts':
  Duration: 01:35:06.88, start: 54851.766678, bitrate: 3407 kb/s
  Program 6915
  Stream #0:0[0x267]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn
    Side data:
      cpb: bitrate max/min/avg: 15000000/0/0 buffer size: 1835008 vbv_delay: N/A
  Stream #0:1[0x27b](fra): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 192 kb/s
  Stream #0:2[0x3a9](deu): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)


  


  I can imagine that this problem could be solved with ffmpeg, but don't know how and I didn't found anything that would help me.