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• Use ffmpeg to record from RTSP stream to two outputs at different resolutions while segmenting the video based on time

  7 juin 2023, par Eric Hansen

  I need to record from an RTSP at two different resolutions (original and something lower). I also need to have the files broken up according to clock time on every even 30 minutes, ex. 1:00, 1:30, 2:00, etc.

  


  I imagine the command would look like this.

  


  ffmpeg -rtsp_transport tcp -i rtsp://<rtsp url="url"> \&#xA;  -filter_complex "[0:v]split=2[v1][v2];[v1]scale=1920:1080[out1];[v2]scale=448:252[out2]" \&#xA;  -map "[out1]" -c:v -f segment -segment_format mp4 -segment_time 00:30:00 -strftime 1 \ &#xA;  /mnt/data/original-%Y-%m-%d-%H.%M.%S.mp4 \&#xA;  -map "[out2]" -c:v -f segment -segment_format mp4 -segment_time 00:30:00 -strftime 1 \ &#xA;  /mnt/data/low-reso-%Y-%m-%d-%H.%M.%S.mp4 \&#xA;</rtsp>

  


  Of course, this doesn't work. The command above gives me this error.

  


  [NULL @ 0x556c999c2140] Unable to find a suitable output format for 'segment'
segment: Invalid argument


  


  I've tried so many perturbations of this command to get it to work without any luck. Does anyone know how to do this ?

  


• How to insert commands for randomization and action after a given time

  26 avril 2021, par Señor Egg

  Right now in my code, I have it written out to play audio files after a !join command. I would like to change it to a command like after every 40 minutes, and I would like to be able to choose a random file to play out of a list. Help on how to ajust my code would be great !

  


  My code :

  


  from discord.ext import commands
from discord import FFmpegPCMAudio
 
client = commands.Bot(command_prefix = '!')
@client.command(pass_context=True)
async def join(ctx):
    if (ctx.author.voice):
        channel = ctx.message.author.voice.channel
        voice = await channel.connect()
        source = FFmpegPCMAudio('AUDIO FILE')
        player = voice.play(source)
    else:
        await ctx.send("User not in a voice channel, unable to connect.")
 
@client.command(pass_context=True)
async def leave(ctx):
    if (ctx.voice_client):
        await ctx.guild.voice_client.disconnect()
        await ctx.send("I have left the voice channel.")
    else:
         await ctx.send("I am not in a voice channel.")
 
 
 
client.run('BOT TOKEN')```


  


• avdevice : use av_gettime_relative() for elapsed time calculations

  7 février 2021, par Marton Balint

  avdevice : use av_gettime_relative() for elapsed time calculations
  av_gettime_relative() is using the monotonic clock therefore more suitable for
  
  elapsed time calculations. Packet timestamps are still kept absolute, although
  
  that should be configurable in the future.
  Related to ticket #9089.
  Signed-off-by : Marton Balint <cus@passwd.hu>
  

  • [DH] libavdevice/bktr.c
  • [DH] libavdevice/fbdev_dec.c
  • [DH] libavdevice/gdigrab.c
  • [DH] libavdevice/kmsgrab.c
  • [DH] libavdevice/xcbgrab.c