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• Chromium Build Failed on Windows:D3D Compiler DLL (\third_party\angle\src)

  31 mars 2016, par Vish

  I have followed same step mentioned in this question. Few extra flag I have set get propriety FFMPEG codec. Its failing every time, with following logs.

  [233/19712] ACTION Copying D3D Compiler DLL...
  
  FAILED: F:\Chrome\depot_tools\python276_bin\python.exe gyp-win-tool action-wrapper environment.x86 copy_compiler_dll_target_copy_dll_a30e198148542d4bce19a5c818c6884f..rsp ..\..\third_party\angle\src
  
  [233/19712] CC obj\third_party\icu\source\stubdata\icuuc.stubdata.obj
  
  ninja: build stopped: subcommand failed.

  For FFMPEG using following set command :

  set GYP_DEFINES=branding=Chromium buildtype=Official component=shared_library disable_nacl=1 enable_automation=0 enable_captive_portal_detection=0 enable_google_now=0 enable_hidpi=0 fastbuild=1 ffmpeg_branding=Chrome incremental_chrome_dll=0 proprietary_codecs=1 remoting=0

  My System Information Details :

  Windows 10 64 Bit 8 GB RAM. Trail Version of Visual Studio 2015
  Installed, but now it is expired. Now I have installed Community
  Version 2013 update 4.

  Does it effect both version effect the execution ? Checked in path, its using Window Kit 8.1. What other part should I check for successful execution ?

• installing ffmpeg on Mac fail

  23 juillet 2022, par wei wang

  I tried to install ffmpeg on Mac(macOS 10.13) with : brew install ffmpeg

  


  but I got below ....

  


  Updating Homebrew...
Warning: You are using macOS 10.13.
We (and Apple) do not provide support for this old version.
You will encounter build failures with some formulae.
Please create pull requests instead of asking for help on Homebrew's GitHub,
Twitter or any other official channels. You are responsible for resolving
any issues you experience while you are running this
old version.

Error: ffmpeg: no bottle available!
You can try to install from source with:
  brew install --build-from-source ffmpeg
Please note building from source is unsupported. You will encounter build
failures with some formulae. If you experience any issues please create pull
requests instead of asking for help on Homebrew's GitHub, Twitter or any other
official channels.


  


• Encode PCM to MPEG-2 AAC with FFmpeg APIs

  13 août 2019, par Tank2006

  My environment is "ffmpeg version 3.4.6-0ubuntu0.18.04.1"

  I wrote a program to encode audio data into MPEG-2 AAC with reference to an official example.

  First, I simply changed the encoder value(and the full source code I wrote is here).

  if (!(output_codec = avcodec_find_encoder(AV_CODEC_ID_AAC))) {

  But FFmpeg S/PDIF encoder(spdifenc.c) returns an error “Wrong AAC file format”.

  I use avctx->profile = FF_PROFILE_MPEG2_AAC_LOW(FF_PROFILE_MPEG2_AAC_HE); but it takes no effects.

  Considering the possibility that the official binary was not compiled with the "CONFIG_ADTS_HEADER" C flag, I ran the following code directly as this :

  buf = output_packet.data;
  
  int err = init_get_bits8(&gb, buf, 7);
  
  if (get_bits(gbc, 12) != 0xfff) return AAC_AC3_PARSE_ERROR_SYNC;

  This didn’t find ADTS header "0xFFF", therefore, an encoder doesn’t seem to work as expected.

  How do I encode ffmpeg-2 aac audio with ffmpeg apis ?