Sur d’autres sites (15184)

• avcodec/mpegaudio_parser : Discard ID3v1 tag at the end

  24 juin 2015, par Michael Niedermayer

  avcodec/mpegaudio_parser : Discard ID3v1 tag at the end
  Ideally this should be discarded by the demuxer but this is not
  
  possible without fully parsing which would be then very similar
  
  to this. The current ID3v1 discard code in the demuxer does not work
  
  and will be removed in a subsequent commit
  The discard code could be adjusted if needed to also discard tags at
  
  other locations than the end or to limit this possibly to input
  
  from the mp3 demuxer or even to move the discarding to the
  
  decoder.
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/mpegaudio_parser.c
  • [DH] libavcodec/version.h
  • [DH] tests/ref/fate/gapless-mp3

• ffserver webm streaming issue with Firefox browser

  1er septembre 2015, par Venkatesh Babu Dargah

  I’m attempting to cast my desktop screen to an ffserver and stream it as a webm. I’m using the following ffserver configuration :

  HTTPPort 8091
  MaxHTTPConnections 20000
  MaxClients 10000
  MaxBandwidth 10000

  CustomLog -

  File /tmp/feed1.ffm
  FileMaxSize 1G
  ACL allow 127.0.0.1

  Format webm
  Feed feed1.ffm

  Video settings

  VideoCodec libvpx
  
  VideoFrameRate 30
  
      VideoBitRate 512
  
  VideoSize 320x240
  
      MaxTime 0
  
      AVOptionVideo me_range 16
  
      AVOptionVideo qdiff 4
  
      AVOptionVideo qmin 4
  
      AVOptionVideo qmax 40
  
      AVOptionVideo quality good
  
      AVOptionVideo flags +global_header

  Streaming settings

      PreRoll 10
  
      StartSendOnKey 

  Audio settings

      AudioCodec libopus
  
      AudioBitRate 128
  
      AudioSampleRate 48000
  
      AVOptionAudio flags +global_header
  
      Metadata author "author"
  
      Metadata copyright "copyright"
  
      Metadata title "Web app name"
  
      Metadata comment "comment"

  I am using ffmpgeg to capture video from my desktop using
  ffmpeg -f v4l2 -s 320x240 -r 25 -i /dev/video0 -f alsa -ac 2 -i hw:0 http://localhost:8091/feed1.ffm/

  i am able to see this stream in chrome.
  but Firefox is showing message as MIME type not supported and not able to decode.
  but if I run the same webm video from static file it is playing in firefox
  but if I try to access via http://localhost:8091/live1.webm i am getting MIME type error,
  please let me know what additional settings need to be done in Firefox to play webm videos from my server address and port.
  Again I am reiterating that this is playing ok in chrome but not in Firefox.

  Please reply.

  hi all,

  i am able to play in firefox also after i changed audiocodecs to libvorbis and removing AudioChannels parameter from ffserver config file.

  thanks for your attention

• libavcodec : fix -Wint-conversion in vulkan

  20 décembre 2023, par Sam James

  libavcodec : fix -Wint-conversion in vulkan
  FIx warnings (soon to be errors in GCC 14, already so in Clang 15) :
  
  ```
  
  src/libavcodec/vulkan_av1.c : In function ‘vk_av1_create_params’ :
  
  src/libavcodec/vulkan_av1.c:183:43 : error : initialization of ‘long long unsigned int’ from ‘void *’ makes integer from pointer without a cast [-Wint-conversion]
  
    183 |         .videoSessionParametersTemplate = NULL,
  
        |                                           ^ 
  
  src/libavcodec/vulkan_av1.c:183:43 : note : (near initialization for ‘(anonymous).videoSessionParametersTemplate’)
  
  ```
  Use Vulkan's VK_NULL_HANDLE instead of bare NULL.
  Fix Trac ticket #10724.
  Was reported downstream in Gentoo at https://bugs.gentoo.org/919067.
  Signed-off-by : Sam James <sam@gentoo.org>
  

  • [DH] libavcodec/vulkan_av1.c
  • [DH] libavcodec/vulkan_decode.c
  • [DH] libavcodec/vulkan_h264.c
  • [DH] libavcodec/vulkan_hevc.c
  • [DH] libavcodec/vulkan_video.c