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• PC Video Conferencing in the Year 1999

  21 juin 2011, par Multimedia Mike — General

  Remember Intel’s custom flavor of H.263 cleverly named I.263 ? I think I have finally found an application that used it thanks to a recent thrift shop raid— Intel Video Phone :

  
  
  

  The root directory of the disc has 2 copies of an intro.avi video. One copy uses Intel Indeo 3 video and PCM audio. The other uses I.263 video and an undetermined (presumably Intel-proprietary) audio codec — RIFF id 0x0402 at a bitrate of 88 kbits/sec for stereo, 22 kHz audio. The latter video looks awful but is significantly smaller (like 4 MB vs. 25 MB).

  This is the disc marked as "Send it to a friend...". Here’s the way this concept was supposed to operate :

  • You buy an Intel Video Phone Camera Pack (forgotten page courtesy of the Internet Archive) which includes a camera and 2 CDs.
  • You install the camera and video phone software on your computer.
  • You send the other CD to the person whom you want to be able to see your face when you’re teleconferencing with them.
  • The other party installs the software.
  • The 2 of you may make an internet phone call presumably using commodity PC microphones for the voice component ; the person who doesn’t have a camera is able to see the person who does have a camera.
  • In a cunning viral/network marketing strategy, Intel encourages the other party to buy the physical hardware as well so that they may broadcast their own visage back to the other person.

  If you need further explanation, the intro lady does a great job :

  
  
  

  I suspect I.263 was the video codec driving this since Indeo 3 would probably be inappropriate for real time video applications due to its vector quantizing algorithm.

• Play a Video from MemoryStream, Using FFMpeg

  7 juin 2014, par Delphi.Boy

  I’m having a hard time, searching how to play a video file from a TMemoryStream (or a similar buffer in memory) using FFMpeg. I’ve seen many things, including UltraStarDX, expensive FFMpeg components for Delphi and so on.

  One component called FFMpeg Vcl Player claims to play video formats from a memory stream. I downloaded the trial version and I guess it uses CircularBuffer.pas for that matter (maybe).

  Does any one know how to do this ?

  Edit :
  Now the better question is how to play an encrypted video file, using FFMpeg or similar libraries.

• Unable to transcode video using ffmpeg transcoder

  28 octobre 2014, par user1843970

  This question may be asked in different forums but still answer is not discovered yet.

  I am trying to play *.flv using Video Module and FFMPEG Converter.
  Whenever I upload any flv Video , I get the following message :-

  PHPVideoToolkit error : Execute error. It was not possible to encode "C :\xampp\htdocs\Resonance\sites\default\files\videos\original\barsandtone_3.flv" as FFmpeg returned an error. The error is with the video codec of the input file. FFmpeg reports the error to be "Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height".

  Installed Modules are :-

  Video - 7.x-2.9

  Video.js - 7.x-2.3 - Version : 4.0.3

  Video transcoder : FFmpeg / avconv : git : c2dd5a1

  JW Player

  All above are installed correctly.

  Configuration of Video Module :-

  Inside Player Tab of Video(admin/config/media/video/players), following has been configured :-

  

  A New FLV Preset has been created and added under Preset Tab of Video(admin/config/media/video/presets). Details are as Follows :-

  Preset name :- FLV Preset

  Video output extension :- FLV Flash Video

  Video codec :- H 263/H263-1996,H263+/H0-º1998/H263 Version 2(Not sure about Video Codec)

  FFmpeg video preset :- None

  Video quality :-None

  Video speed :- None

  Dimensions :- 640 X 360

  Aspect mode :- Preserve Aspect Ratio

  When I am uploading the video from content type then it extract the thumbnail as follows :-

  

  After saving the video it shows the following Mesage :-

  

  My gut feeling is that I am setting up wrong preset but I am not able to solve this problem out. Please help me as I am very close to my completion of project which would have been waste without solving the problem.

  Updated :-

  The Console message is as follows :-

  Reported errors

  PHPVideoToolkit error : Execute error. It was not possible to encode "C :\xampp\htdocs\Resonance\sites\default\files\videos\original\barsandtone_19.flv" as FFmpeg returned an error. Note, however the error was encountered on the second pass of the encoding process and the first pass appear to go fine. The error is with the video codec of the input file. FFmpeg reports the error to be "Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height".

  Executed commands and output

  /ffmpeg/ffmpeg.exe -i "C:\xampp\htdocs\Resonance\sites\default\files\videos\original\barsandtone_7.flv" -strict experimental -vcodec "h264" -s "320x180" -acodec "aac" -ac "2" -pass "1" -passlogfile "C:\xampp\tmp/1384191046-5281144682cfc-multipass"  -y C:\xampp\tmp/1384191046-5281144681e51.flv
  
  
  
  ffmpeg version N-49610-gc2dd5a1 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Feb  5 2013 13:26:02 with gcc 4.7.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  
    libavutil      52. 17.101 / 52. 17.101
  
    libavcodec     54. 91.100 / 54. 91.100
  
    libavformat    54. 61.104 / 54. 61.104
  
    libavdevice    54.  3.103 / 54.  3.103
  
    libavfilter     3. 35.101 /  3. 35.101
  
    libswscale      2.  2.100 /  2.  2.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  2.100 / 52.  2.100
  
  [flv @ 00000000002fb860] max_analyze_duration 5000000 reached at 5018000 microseconds
  
  Input #0, flv, from 'C:\xampp\htdocs\Resonance\sites\default\files\videos\original\barsandtone_7.flv':
  
    Metadata:
  
      audiodelay      : 0
  
      canSeekToEnd    : true
  
    Duration: 00:00:06.00, start: 0.000000, bitrate: 118 kb/s
  
      Stream #0:0: Video: vp6f, yuv420p, 360x288, 409 kb/s, 1k tbr, 1k tbn, 1k tbc
  
      Stream #0:1: Audio: mp3, 44100 Hz, stereo, s16p, 96 kb/s
  
  [libx264 @ 0000000002457340] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
  
  [libx264 @ 0000000002457340] profile Main, level 4.0
  
  [libx264 @ 0000000002457340] 264 - core 129 r2245 bc13772 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x1:0 me=dia subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 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=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, flv, to 'C:\xampp\tmp/1384191046-5281144681e51.flv':
  
    Metadata:
  
      audiodelay      : 0
  
      canSeekToEnd    : true
  
      encoder         : Lavf54.61.104
  
      Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv420p, 320x180, q=-1--1, pass 1, 1k tbn, 1k tbc
  
      Stream #0:1: Audio: aac ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 128 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (vp6f -> libx264)
  
    Stream #0:1 -> #0:1 (mp3 -> aac)
  
  Press [q] to stop, [?] for help
  
  frame=    2 fps=0.0 q=-1.0 Lsize=     102kB time=00:00:06.10 bitrate= 136.7kbits/s
  
  video:2kB audio:95kB subtitle:0 global headers:0kB muxing overhead 4.978013%
  
  [libx264 @ 0000000002457340] frame I:1     Avg QP:11.95  size:  1595
  
  [libx264 @ 0000000002457340] frame P:1     Avg QP: 2.00  size:    21
  
  [libx264 @ 0000000002457340] mb I  I16..4: 86.3%  0.0% 13.8%
  
  [libx264 @ 0000000002457340] mb P  I16..4:  0.4%  0.0%  0.0%  P16..4:  0.0%  0.0%  0.0%  0.0%  0.0%    skip:99.6%
  
  [libx264 @ 0000000002457340] coded y,uvDC,uvAC intra: 13.8% 40.7% 32.8% inter: 0.0% 0.0% 0.0%
  
  [libx264 @ 0000000002457340] i16 v,h,dc,p: 80% 15%  4%  0%
  
  [libx264 @ 0000000002457340] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 36% 42% 21%  0%  0%  0%  0%  0%  0%
  
  [libx264 @ 0000000002457340] i8c dc,h,v,p: 45% 24% 31%  0%
  
  [libx264 @ 0000000002457340] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0000000002457340] kb/s:1.08
  
  
  
  /ffmpeg/ffmpeg.exe -i "C:\xampp\htdocs\Resonance\sites\default\files\videos\original\barsandtone_7.flv" -strict experimental -vcodec "h264" -s "320x180" -acodec "aac" -ac "2" -pass "2" -passlogfile "C:\xampp\tmp/1384191046-5281144682cfc-multipass"  -y C:\xampp\tmp/1384191046-5281144681e51.flv
  
  
  
  ffmpeg version N-49610-gc2dd5a1 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Feb  5 2013 13:26:02 with gcc 4.7.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  
    libavutil      52. 17.101 / 52. 17.101
  
    libavcodec     54. 91.100 / 54. 91.100
  
    libavformat    54. 61.104 / 54. 61.104
  
    libavdevice    54.  3.103 / 54.  3.103
  
    libavfilter     3. 35.101 /  3. 35.101
  
    libswscale      2.  2.100 /  2.  2.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  2.100 / 52.  2.100
  
  [flv @ 00000000002fb860] max_analyze_duration 5000000 reached at 5018000 microseconds
  
  Input #0, flv, from 'C:\xampp\htdocs\Resonance\sites\default\files\videos\original\barsandtone_7.flv':
  
    Metadata:
  
      audiodelay      : 0
  
      canSeekToEnd    : true
  
    Duration: 00:00:06.00, start: 0.000000, bitrate: 118 kb/s
  
      Stream #0:0: Video: vp6f, yuv420p, 360x288, 409 kb/s, 1k tbr, 1k tbn, 1k tbc
  
      Stream #0:1: Audio: mp3, 44100 Hz, stereo, s16p, 96 kb/s
  
  [libx264 @ 00000000024e7340] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
  
  [libx264 @ 00000000024e7340] constant rate-factor is incompatible with 2pass.
  
  Output #0, flv, to 'C:\xampp\tmp/1384191046-5281144681e51.flv':
  
    Metadata:
  
      audiodelay      : 0
  
      canSeekToEnd    : true
  
      Stream #0:0: Video: h264, yuv420p, 320x180, q=-1--1, pass 2, 90k tbn, 1k tbc
  
      Stream #0:1: Audio: none, 44100 Hz, stereo, fltp, 128 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (vp6f -> libx264)
  
    Stream #0:1 -> #0:1 (mp3 -> aac)
  
  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  I am not Unix Wizard to get the things out of this. Please help me in suggesting the right path.