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• ffmpeg transcode to hls and multiple aac audio tracks

  23 août 2023, par Aquarius

  I'm trying to transcode h264 mp4 file to HLS format with multiple AAC audio tracks. On Windows browsers everythins works like a shine. There's an option to switch audio track

  


  

  


  It doesn't work on Android devices or TV. On Android Opera browser video works with sound, but screen stuck while seeking and there's no option to switch audio track. On TV browser video works, it doesn't stuck when seeking but also no option to switch audio track

  


  Using video.js player on site. Below code for transcode and produced manifest file

  


  ffmpeg -i "file.mp4" -i PL-6ch.aac -i EN-6ch.aac -map 0:v -map 1:a -map 2:a -c:v copy -c:a:0 aac -ac:a:0 6 -af channelmap=channel_layout=5.1 -c:a:1 aac -ac:a:1 6 -af channelmap=channel_layout=5.1 -tag:v:0 h264 -b:v:0 2500k -tag:a:0 aac -b:a:0 384k -tag:a:1 aac -b:a:1 384k -f hls -hls_time 10 -hls_playlist_type vod -hls_list_size 0 -master_pl_name file.m3u8 -var_stream_map "v:0,agroup:AAC a:0,agroup:AAC,language:pl a:1,agroup:AAC,language:en" file_%v_.m3u8


  


  #EXTM3U
#EXT-X-VERSION:3
#EXT-X-INDEPENDENT-SEGMENTS
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="AAC",NAME="Polish",AUTOSELECT=YES,DEFAULT=YES,LANGUAGE="pl",URI="file_1_.m3u8"
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="AAC",NAME="English",AUTOSELECT=YES,DEFAULT=NO,LANGUAGE="en",URI="file_2_.m3u8"
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=3172400,RESOLUTION=1920x872,CODECS="avc1.640029,mp4a.40.2",AUDIO="AAC" 
file_0_.m3u8

#EXT-X-STREAM-INF:BANDWIDTH=422400,CODECS="mp4a.40.2",AUDIO="AAC"
file_1_.m3u8

#EXT-X-STREAM-INF:BANDWIDTH=422400,CODECS="mp4a.40.2",AUDIO="AAC"
file_2_.m3u8


  


  Any clues what's wrong ?

  


• Build FFmpeg with Freetype2 for ARM ( Android )

  14 mai 2014, par Pawel Cala

  I’m trying to build FFmpeg binary file with freetype library included ( I need it for drawtext filter ). Unfortunately I cannot configure ffmpeg properly and every try ends with "freetype not found" error.

  PS I’ve tried to build guardian-ffmpeg project but i’m getting errors during configure process.

  PS2 Building plain ffmpeg works perfectly well

  Configuration script :

  make distclean &./configure --target-os=linux \
  
  --cross-prefix=arm-linux-androideabi- \
  
  --arch=arm \
  
  --cpu=armv7-a \
  
  --enable-libfreetype --enable-filter=drawtext \ #!Freetype params
  
  --disable-network \
  
  --disable-ffplay \
  
  --disable-ffprobe \
  
  --disable-ffserver \
  
  --enable-protocol=file \
  
  --sysroot=${ANDROID_NDK_ROOT_PATH}/platforms/${ANDROID_API_VERSION}/arch-arm \
  
  --prefix=build/armeabi-v7a \
  
  --disable-asm \
  
  --extra-cflags='-DANDROID -Ifreetype2/ -I${ANDROID_NDK_ROOT_PATH}/sources/cxx-stl/system/include -march=armv7-a -mfloat-abi=softfp' \
  
  --extra-ldflags='-Wl,--fix-cortex-a8 -Lfreetype2/ -L../android-libs -Wl,-rpath-link,../android-libs' \
  
  --extra-cxxflags='-Wno-multichar -fno-exceptions -fno-rtti'
  
  make -j6 && make install || exit 0

  Directories sctructure :

  ffmpeg/
  
     -ffmpeg dirs/
  
     -freetype2/
  
     -rest of ffmpeg files ( including configure, make, etc )

  I’ve checked patch sources in guardian-project and I’ve found that ffmpeg configure file might need some changes in require_libfreetype method ?!

  Thanks in advance ( and sorry for my bad english )

  EDIT :
  Building on OSX Mavericks,
  Last 3 lines of config.log ; OSX hasn’t got pkg-config therefore false in 2nd line :

  require_libfreetype
  
  false --exists --print-errors freetype
  
  ERROR: freetype not found

• Piwik 3 Release Candidate

  14 décembre 2016, par Piwik Core Team — Development

  The release candidate for Piwik 3 is now available.

  RC means we think we’re done, but it’s possible we’ve missed something. We hope to ship Piwik 3 on Sunday, December 18th (updated). If you haven’t tested Piwik 3 yet, now is the time ! To test Piwik 3, you can use the beta release channel or you can download the release candidate here (zip).

  Piwik 3 is a jam-packed release, with a number of features focused on security, performance, and more advanced analytics capabilities. Highlights include new UI design, responsive experience on mobile, better email reports, secure password storage, better tracking of downloads and outlinks, and more.

  Not sure where to start with testing ? Try setting up a new installation and taking notes on what you enjoyed and what got you stuck. For more details about what’s new in version 3.0, check out the beta 1, beta 2, beta 3, beta 4 changelogs as well as these blog posts : Piwik 3 overview, and Important notes and API breaking changes in Piwik 3.

  Think you’ve found a bug ? Please post to our Issues tracker. If any known issues come up, you’ll be able to search and find them there.

  Developers, please test your plugins and themes against Piwik 3 and update your plugin.json to require Piwik 3. An in-depth field guide to developer-focused changes and plugin migration is published on the Developer website.

  Do you speak a language other than English ? Help us translate Piwik into more than 50 languages !

  Happy testing !