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• what codec to specify to accessing my HDMI-to-USB adaptor, under Linux ? [closed]

  14 mai 2022, par David

  A week or so ago,I bought a HDMI-to-USB adapter, to use to capture video
TV content from my TV's set-top box. (Xfinity, if it matters. Box generically is :
"XiD X1"...I have both the Pace and the Cisco models available here in this house.)

  


  Specifically, here's the adapter I bought,from Amazon :
https://www.amazon.com/gp/product/B09FLN63B3

  


  So, I'm fluent in both Windows (Win-11) and Linux (Debian 'Bullseye', on my chromebook).

  


  The adapter does not come with any recommendations for what software/drivers to (try to) use, but I was prepared for that.
After some google searches, I decided to first try using the cmd-line
'ffmpeg' program, because I'm
quite familiar with that (excellent !) piece of open-source software !

  


  So, after a day or two of (mostly) success recordings under Win-11, using
ffmpeg's Microsoft-based 'dshow' (aka 'DirectShow'), I decided to attempt to get
up to the same level of accomplishment on my Chromebook, under Linux, also
using 'ffmpeg'.

  


  [Ok...a very brief explanation of 'mostly' successful. I'll
post another separate question here, about the specifics of my glitches,
using 'dshow' on Windows. But, essentially, when I try to record to a MP4
file, I get 2 scenarios of glitch : #1 : Suddenly, dropped packets surges up,
and I get "1000 dropped' yellow msg #2 : On other trials, I get '...contains
no image...'.) So, I figured I should first give a Linux a chance,
before spending more effort trying to resolve the glitches on Windows.]

  


  My first snag, was learning that 'dshow' seems to be specific to 'Windows',
and thus ffmpeg is getting 'unknown' for my reference to 'dshow'. After more hours of 'guessing', I've finally learned/concluded that there are other things
(something call "DeckLink" is one such alternative ?) for Linux, but I'm unclear
what extra Linux packages might exist for ffmpeg support, or whether I will need to built a more complete 'ffmpeg' (e.g. from source code), to get things going under Linux ?

  


  Is my device able to be accessed from some tools other than 'ffmpeg' ?
(e.g. VLC or Handbrake or whatever ?) more easily, on the Linux platform ?

  


  [If I had to, I'd probably invest another $20-$50 in some other hardware
device that goes from HDMI-to-USB (USB-A/B), if it were ]

  


  All ideas are welcome...(TIA)

  


  — Dave

  


• Can't obtain information with ffmpeg to Smooth Streaming Manifest file

  4 mars 2015, par Alberto

  I’m trying to get details for a stream of protocol Microsoft Smooth Streaming, with ffmpeg tools (ffprobe and ffplay) but when I run the next command :

  ffprobe -i http://b31282.cdn.telefonica.com/31282/Manifest

  I obtain this :

  http://b31282.cdn.telefonica.com/31282/Manifest: Invalid data found when processing input

  I assume that this Manifest file is correct and complies with standards of Smooth Streaming . This is a brief extract of Manifest file :

  <smoothstreamingmedia majorversion="2" minorversion="0" duration="0" timescale="10000000" islive="TRUE" lookaheadfragmentcount="2" dvrwindowlength="6000000000" canseek="TRUE" canpause="TRUE">
  
    <protection>
  
      <protectionheader systemid="9a04f079-9840-4286-ab92-e65be0885f95">oioAAAIAAQCUAjwAV...</protectionheader>
  
    </protection>
  
    <streamindex type="audio" language="esp" subtype="" chunks="0" timescale="10000000" url="QualityLevels({bitrate})/Fragments(audio_esp={start time})"></streamindex>
  
    <streamindex type="video" language="" subtype="" chunks="0" timescale="10000000" url="QualityLevels({bitrate})/Fragments(video={start time})"></streamindex>
  
  </smoothstreamingmedia>

  Is a Fedora 21 and ffmpeg version and configuration is :

  ffmpeg version git-2015-02-27-d490b26
  
  configuration: --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264
  
  libavutil         54. 19.100         
  
  libavcodec        56. 26.100          
  
  libavformat       56. 23.105           
  
  libavdevice       56.  4.100                   
  
  libavfilter        5. 11.102          
  
  libswscale         3.  1.101        
  
  libswresample      1.  1.100           
  
  libpostproc       53.  3.100 

  PD : I prefer use only ffmpeg tool

  Thanks for all

• FFMPEG and MSA1 Codec Issues when Converting WMV to MP4 Video

  30 décembre 2023, par user136819

  I have a WMV video file (around 60 MB size, 01:23:00 length) and I'm running a Windows Server 2016 64-bit machine for testing.
  
As far as I know, this video file was recorded using Microsoft Live Meeting 2007 back in April 2010 and there is also an associated audio file (which I'm able to play).

  


  I tried to play the video file on my machine using VLC player (latest update), however, I always see this weird MSA1 codec error :

  


  

  


  So I tried to resolve this problem by downloading and installing the Combined-Community-Codec-Pack-64bit-2015-10-18, and using its MPC-HC 64-bit player to play the video...
I still couldn't get it to play ! Here are the logs shown by the MPC player :

  


  

  


  WM ASF Reader::Raw Video 0

Media Type 0:
--------------------------
Video: MSA1 1440x900 5fps 164kbps

AM_MEDIA_TYPE: 
majortype: MEDIATYPE_Video {73646976-0000-0010-8000-00AA00389B71}
subtype: Unknown GUID Name {3141534D-0000-0010-8000-00AA00389B71}
formattype: FORMAT_VideoInfo {05589F80-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 0
bTemporalCompression: 1
lSampleSize: 0
cbFormat: 88

VIDEOINFOHEADER:
rcSource: (0,0)-(1440,900)
rcTarget: (0,0)-(1440,900)
dwBitRate: 164794
dwBitErrorRate: 0
AvgTimePerFrame: 2000000

BITMAPINFOHEADER:
biSize: 40
biWidth: 1440
biHeight: 900
biPlanes: 1
biBitCount: 16
biCompression: MSA1
biSizeImage: 66101
biXPelsPerMeter: 0
biYPelsPerMeter: 0
biClrUsed: 0
biClrImportant: 0

pbFormat:
0000: 00 00 00 00 00 00 00 00 a0 05 00 00 84 03 00 00 ........ ...„...
0010: 00 00 00 00 00 00 00 00 a0 05 00 00 84 03 00 00 ........ ...„...
0020: ba 83 02 00 00 00 00 00 80 84 1e 00 00 00 00 00 ºƒ......€„......
0030: 28 00 00 00 a0 05 00 00 84 03 00 00 01 00 10 00 (... ...„.......
0040: 4d 53 41 31 35 02 01 00 00 00 00 00 00 00 00 00 MSA15...........
0050: 00 00 00 00 00 00 00 00                         ........


  


  Since that didn't work, I tried installing the Microsoft MPEG-4 V1/2/3 VKI Codec for ASF files and still couldn't get the players to play the video and saw the same errors as above !

  


  As a final attempt, I tried to convert this video to MP4 format using FFMPEG (version from 2020). Even this failed. Here are the logs :

  


  D:\ffmpeg-20200403-52523b6-win64-static\bin>ffmpeg.exe -i input-video.wmv -c:v copy -c:a aac -q:a 100 output.mp4
ffmpeg version git-2020-04-03-52523b6 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.3.1 (GCC) 20200328
  configuration: --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-libsrt --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-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 42.102 / 56. 42.102
  libavcodec     58. 77.101 / 58. 77.101
  libavformat    58. 42.100 / 58. 42.100
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 77.101 /  7. 77.101
  libswscale      5.  6.101 /  5.  6.101
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
[msa1 @ 000002505bb847c0] Image dimensions should be a multiple of 16.
[asf @ 000002505bb4b600] Failed to open codec in avformat_find_stream_info
[msa1 @ 000002505bb847c0] Image dimensions should be a multiple of 16.
Input #0, asf, from 'input-video.wmv':
  Metadata:
    WMFSDKNeeded    : 0.0.0.0000
    WMFSDKVersion   : 10.00.00.4072
    IsVBR           : 0
  Duration: 01:22:49.28, start: 0.000000, bitrate: 96 kb/s
    Stream #0:0(ger): Video: msa1 (MSA1 / 0x3141534D), none, 1440x900, 164 kb/s, 5 tbr, 1k tbn, 1k tbc
[mp4 @ 000002505bb4ce40] Could not find tag for codec msa1 in stream #0, codec not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
    Last message repeated 1 times

D:\ffmpeg-20200403-52523b6-win64-static\bin>


  


  I wish to know, is there any other way I can convert this video to a more modern format so that I can play it on a modern machine and modern video player ?
  
What other codecs am I missing here ? (if so, where can I get them ?)
  
FYI, as mentioned earlier at the top, I'm only able to play the associated audio file...

  


  I'm fairly new to all this stuff, so any help is appreciated.

  


  Thanks in advance ! :)