Recherche avancée

Sur d’autres sites (10268)

• Rtmp streaming not playing on VLC player

  7 février 2021, par Madhuraank B

  In terminal :

  


  ffmpeg -f v4l2 -i /dev/video0 -vcodec libx264 -preset ultrafast -pix_fmt yuv420p -s 1280x720 -r 30 -b:v 1500k -bufsize 1500k -maxrate 7000k -f flv rtmp://192.168.1.6:1935/live/test


  


  I get :

  


  


  Output #0, flv, to 'rtmp ://192.168.1.6:1935/live/test' :
Metadata :
encoder : Lavf58.20.100
Stream #0:0 : Video : h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 1280x720, q=-1—1, 1500 kb/s, 30 fps, 1k tbn, 30 tbc
Metadata :
encoder : Lavc58.35.100 libx264
Side data :
cpb : bitrate max/min/avg : 7000000/0/1500000 buffer size : 1500000 vbv_delay : -1
frame= 115 fps=0.1 q=21.0 size= 3088kB time=00:00:17.96 bitrate=1407.9kbits/s speed=0.0141x

  


  


  When I open VLC player and open network stream in network rtmp://192.168.1.6/live/test, but it does not play it shows no error it just keeps on loading.

  


  Thanks in advance

  


• how to create player using ffmpeg on android ?

  26 avril 2012, par Shrenik

  I have complied ffmpeg library for android
  could any guide me how to use it for showing the video on the screen.

• ffmpeg conversion : 16:9 H.264 to MPG ; converts to 4:3, shows as 4:3 in QT X player, 16:9 in VLC

  14 septembre 2015, par Wivku

  My source video file :

  Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 352x288 [SAR 16:11 DAR 16:9], 305 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default)

  My output video file :

  Stream #0:0[0x1e0]: Video: mpeg1video, yuv420p(tv), 352x288 [SAR 49:33 DAR 49:27], 104857 kb/s, 25 fps, 25 tbr, 90k tbn, 25 tbc

  Both seem to have correct SAR/DAR.

  But, when I play the original file in QuickTime Player X it is shown in 16:9 and the output file is shown in 4:3. The output file is shown correctly in VLC and... QuickTime Player 7. See screenshots.

  Q : Is there a specific tag/flag I need to set in the output file to mark it as 16:9 (for QT X) ?

  Related : I add a burnt in timecode, but this is burnt in on the 4:3 aspect ratio. In other words, when displaying in the correct 16:9 ratio the timecode is stretched horizontally.

  Q : How can I specify that the timecode should be added based on the 16:9 aspect ratio ?

  For the conversion (without the timecode burn) with ffmpeg 2.7.2, both of these give the same result :

  ffmpeg -y -i orig.mov -aspect 16:9 output.mpg
  
  ffmpeg -y -i orig.mov output.mpg