Recherche avancée

Sur d’autres sites (11947)

• How to play an local video in arbitrary codec and format in browser ? [closed]

  24 septembre 2023, par HanXu

  I am developing a video player in browser to let the user select a local video to play, and want to support as many video formats as possible. I know that in browser a video tag can only play videos in a limited set of codecs, and on desktop libraries like VLC can play literally any videos. I would like to bring that broad compatibility to the browser, but not sure how to achieve it.

  


  One thing come up in my mind is to let the user run a thin client natively, which read the local video and stream it at, say, http://localhost:8080, in some web-friendly codec and format, and in the frontend I use a video with src to be http://localhost:8080.

  


  In the client I think I need to run some ffmpeg command to somehow stream and process the video in real-time. I also run into the libVLC which seems nice, and am not sure which one to use.

  


  Furthermore, I need to enable the user to seek to any arbitrary timestamp, and am not sure if the streaming technic supports it.

  


  I have done some googling, and found a method which first runs a ffmpeg command as

  


  VIDSOURCE="/some/video.mp4"
AUDIO_OPTS="-c:a aac -b:a 160000 -ac 2"
VIDEO_OPTS="-s 854x480 -c:v libx264 -b:v 800000"
OUTPUT_HLS="-hls_time 10 -hls_list_size 10 -start_number 1"
ffmpeg -i "$VIDSOURCE" -y $AUDIO_OPTS $VIDEO_OPTS $OUTPUT_HLS /some/public/video.m3u8


  


  and in the frontend I can use the react-player to play the video like

  


  <reactplayer url="/some/public/video.m3u8"></reactplayer>&#xA;

  


  However, I can not seek to an arbitrary timestamp, and the ffmpeg command creates a lot of .ts files one by one about which I am not sure what is going on. It seems that before it creates a video77.ts, I can not seek to timestamp within that segment.

  


  All in all, I am looking for some solution like

  


  

  


  that supports

  


  

  • playing videos in browsers in as many codecs and formats as possible,

  


  • allowing users to seek to any arbitrary timestamp.

  


  


  Since many native video player like VLC supports it, I believe it can be done. Does anyone have any idea that may help ? Appreciate in advance !

  


• avformat/dash : move reused API to common file and header file

  1er septembre 2017, par Steven Liu

  avformat/dash : move reused API to common file and header file
  move from dashenc, move DASHTmplId and dash_fill_tmpl_params to
  
  dash.c, they will be used by dash demuxer and dash muxer.
  v2 fixed :
  
  1. rename common file from dashcomm.* to dash.*
  
  Suggested-by : Hendrik Leppkes <h.leppkes@gmail.com>
  v3 fixed :
  
  1. rename header file pre defined
  
  2. add ff_ prefix for the internal API
  
  Suggested-by : James Almer <jamrial@gmail.com>
  Suggested-by : Timo Rothenpieler <timo@rothenpieler.org>
  
  Reviewed-by : wm4 <nfxjfg@googlemail.com>
  
  Signed-off-by : Steven Liu <lq@onvideo.cn>
  

  • [DH] libavformat/Makefile
  • [DH] libavformat/dash.c
  • [DH] libavformat/dash.h
  • [DH] libavformat/dashenc.c

• Revision 7dfec96059 : vpxenc : support scaling prior to encoding Scales the input of the encoder using

  1er mars 2012, par John Koleszar

  Changed Paths : Modify /examples.mk Modify /vpxenc.c vpxenc : support scaling prior to encoding Scales the input of the encoder using libyuv's "box filter". Each stream may have a different width and height specified. If the width (or height) parameter is missing (or is explicitly set to 0) (...)