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• Is there a way to get FFprobe to return codec_name from firs first video, audio, and subtitle stream in a video in a single call to FFprobe ?

  26 août 2023, par Chase Westlye

  ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=noprint_wrappers=1:nokey=1 (filename) 


  


  is how to retrieve the codec_name of the first video stream in a file via FFprobe.

  


  Replace v:0 with a:0 to get the first audio stream, and it returns the codec_name of the first audio stream in the file.

  


  And replace v:0 with s:0 to get the codec_name of the first subtitle stream in the file.

  


  Awesome.

  


  What isn't awesome, is having to call FFprobe three times for these operations and having to hit the file three times.

  


  Is there a way to call FFProbe once, and have FFProbe return the codec_name of the first video, audio, and subtitle stream (instead of separate calls) ?

  


• AttributeError : 'FFmpegAudio' object has no attribute '_process' while trying to play audio from URL

  13 août 2022, par jmcamacho7

  I can't find any solution online and I don't know what's wrong.

  


  My code is : (Not pasting the URL getting since that works fine)

  


  from urllib import parse, request
import re
import pafy
from discord import FFmpegPCMAudio, PCMVolumeTransformer

FFMPEG_OPTIONS = {
    'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5', 'options': '-vn'
}

@bot.command(pass_context=True)
async def play(ctx, * , search):
  query_string = parse.urlencode({'search_query': search})
  html_content = request.urlopen('http://www.youtube.com/results?' + query_string)
  search_results=re.findall('watch\?v=(.{11})',html_content.read().decode('utf-8'))
  print(search_results[0])
  
  if(ctx.author.voice):
    channel = ctx.message.author.voice.channel
    await ctx.send("https://www.youtube.com/watch?v="+search_results[0])  
    url = "https://www.youtube.com/watch?v="+search_results[0]
    conn = await channel.connect()
    conn.play(discord.FFmpegAudio(url, **FFMPEG_OPTIONS))
  else:
    await ctx.send("Necesitas estar en un canal de audio para usar este comando")


  


  It just gives me this error everytime I try it :

  


  Traceback (most recent call last):
  File "/home/runner/HakuBot/venv/lib/python3.8/site-packages/discord/player.py", line 103, in __del__
    self.cleanup()
  File "/home/runner/HakuBot/venv/lib/python3.8/site-packages/discord/player.py", line 154, in cleanup
    proc = self._process
AttributeError: 'FFmpegAudio' object has no attribute '_process'


  


  Anyway to solve this ?

  


• libavcodec : Enable runtime detection for MIPS MMI & MSA

  18 juillet 2020, par Jiaxun Yang

  libavcodec : Enable runtime detection for MIPS MMI & MSA
  Apply optimized functions according to cpuflags.
  
  MSA is usually put after MMI as it's generally faster than MMI.
  Signed-off-by : Jiaxun Yang <jiaxun.yang@flygoat.com>
  
  Reviewed-by : Shiyou Yin <yinshiyou-hf@loongson.cn>
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/mips/blockdsp_init_mips.c
  • [DH] libavcodec/mips/cabac.h
  • [DH] libavcodec/mips/h263dsp_init_mips.c
  • [DH] libavcodec/mips/h264chroma_init_mips.c
  • [DH] libavcodec/mips/h264dsp_init_mips.c
  • [DH] libavcodec/mips/h264pred_init_mips.c
  • [DH] libavcodec/mips/h264qpel_init_mips.c
  • [DH] libavcodec/mips/hevcdsp_init_mips.c
  • [DH] libavcodec/mips/hevcpred_init_mips.c
  • [DH] libavcodec/mips/hpeldsp_init_mips.c
  • [DH] libavcodec/mips/idctdsp_init_mips.c
  • [DH] libavcodec/mips/me_cmp_init_mips.c
  • [DH] libavcodec/mips/mpegvideo_init_mips.c
  • [DH] libavcodec/mips/mpegvideoencdsp_init_mips.c
  • [DH] libavcodec/mips/pixblockdsp_init_mips.c
  • [DH] libavcodec/mips/qpeldsp_init_mips.c
  • [DH] libavcodec/mips/vc1dsp_init_mips.c
  • [DH] libavcodec/mips/videodsp_init.c
  • [DH] libavcodec/mips/vp3dsp_init_mips.c
  • [DH] libavcodec/mips/vp8dsp_init_mips.c
  • [DH] libavcodec/mips/vp9dsp_init_mips.c
  • [DH] libavcodec/mips/wmv2dsp_init_mips.c
  • [DH] libavcodec/mips/wmv2dsp_mips.h
  • [DH] libavcodec/mips/wmv2dsp_mmi.c
  • [DH] libavcodec/mips/xvididct_init_mips.c