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Sur d’autres sites (5898)

  • tf.contrib.ffmpeg.decode_audio replacement ?

    27 juin 2019, par Imran Paruk

    In the tensorflow docs, it stated that tf.contrib.ffmpeg.decode_audio is depreciated, however it does not state what it’s replacement is...

    THIS FUNCTION IS DEPRECATED. It will be removed after 2018-09-04. Instructions for updating : This will be deleted and should not be used.

    Here is the link : https://www.tensorflow.org/api_docs/python/tf/contrib/ffmpeg/decode_audio

  • FFMPEG HLS Multiple audio languages with var_stream_map - EXT-X-MEDIA:TYPE doesn't contain LANGUAGE

    30 janvier 2020, par Moonsurfer_1

    I have a question involving multiple audio languages on HLS with FFMPEG.

    I’m currently using the following command to mux a transport stream with multiple audio languages into an HLS stream with a master playlist :

    ffmpeg -re -i $INPUT_URL -map 0:v -c:v copy -map 0:a -c:a copy -f hls -hls_time 6 -hls_list_size 10 -hls_flags delete_segments+program_date_time -hls_segment_filename "$FULL_OUTPUT_FOLDER/stream_%v_%d.ts" -var_stream_map "v:0,agroup:groupname a:0,agroup:groupname a:1,agroup:groupname a:2,agroup:groupname a:3,agroup:groupname" -master_pl_name master.m3u8 $FULL_OUTPUT_FOLDER/stream-%v.m3u8

    The output of this command looks like this :

    ffmpeg version 4.0.3-1~16.04.york0 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
    
  configuration: --prefix=/usr --extra-version='1~16.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
[mpegts @ 0x55c8cb7fee40] start time for stream 5 is not set in estimate_timings_from_pts
    
[mpegts @ 0x55c8cb7fee40] start time for stream 6 is not set in estimate_timings_from_pts                                                                                          
    
[mpegts @ 0x55c8cb7fee40] start time for stream 7 is not set in estimate_timings_from_pts                                                                                          
    
Input #0, mpegts, from '/home/user/Videos/output/example.ts':
    
  Duration: 00:37:50.26, start: 1.498667, bitrate: 1257 kb/s
    
  Program 1 
    
    Metadata:
    
      service_name    : example
    
      service_provider: FFmpeg
    
    Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 696x572 [SAR 64:45 DAR 3712:2145], 25 fps, 25 tbr, 90k tbn, 50 tbc
    
    Stream #0:1[0x101](eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 159 kb/s
    
    Stream #0:2[0x102](fra): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 126 kb/s
    
    Stream #0:3[0x103](ita): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 132 kb/s
    
    Stream #0:4[0x104](eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 132 kb/s
    
    Stream #0:5[0x105](eng): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
    
    Stream #0:6[0x106](fra): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
    
    Stream #0:7[0x107](deu): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_0_0.ts' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_1_0.ts' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_2_0.ts' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_3_0.ts' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_4_0.ts' for writing
    
[mpegts @ 0x55c8cb880380] frame size not set
    
[mpegts @ 0x55c8cb882040] frame size not set                                                                                                                                       
    
[mpegts @ 0x55c8cb8837c0] frame size not set                                                                                                                                       
    
[mpegts @ 0x55c8cb885280] frame size not set                                                                                                                                       
    
Output #0, hls, to '/var/www/html/live/stream-%v.m3u8':
    
  Metadata:
    
    encoder         : Lavf58.12.100
    
    Stream #0:0: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 696x572 [SAR 64:45 DAR 3712:2145], q=2-31, 25 fps, 25 tbr, 90k tbn, 25 tbc
    
    Stream #0:1(eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 159 kb/s
    
    Stream #0:2(fra): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 126 kb/s
    
    Stream #0:3(ita): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 132 kb/s
    
    Stream #0:4(eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 132 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
  Stream #0:1 -> #0:1 (copy)
    
  Stream #0:2 -> #0:2 (copy)
    
  Stream #0:3 -> #0:3 (copy)
    
  Stream #0:4 -> #0:4 (copy)
    
Press [q] to stop, [?] for help
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_1_1.ts' for writing    
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-1.m3u8.tmp' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_2_1.ts' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-2.m3u8.tmp' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_3_1.ts' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-3.m3u8.tmp' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_4_1.ts' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-4.m3u8.tmp' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_1_2.ts' for writing   
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-1.m3u8.tmp' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_2_2.ts' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-2.m3u8.tmp' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_3_2.ts' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-3.m3u8.tmp' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_4_2.ts' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-4.m3u8.tmp' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_0_1.ts' for writing   
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-0.m3u8.tmp' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/master.m3u8' for writing
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream_1_3.ts' for writing   
    
[hls @ 0x55c8cb834980] Opening '/var/www/html/live/stream-1.m3u8.tmp' for writing

    The master playlist that’s being output by this command looks like this :

    #EXTM3U
    
#EXT-X-VERSION:3
    
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_groupname",NAME="audio_0",DEFAULT=YES,URI="stream-1.m3u8"
    
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_groupname",NAME="audio_0",DEFAULT=YES,URI="stream-2.m3u8"
    
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_groupname",NAME="audio_0",DEFAULT=YES,URI="stream-3.m3u8"
    
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_groupname",NAME="audio_0",DEFAULT=YES,URI="stream-4.m3u8"
    
#EXT-X-STREAM-INF:BANDWIDTH=174900,RESOLUTION=696x572,AUDIO="group_groupname"
    
stream-0.m3u8
    

    
#EXT-X-STREAM-INF:BANDWIDTH=174900,CODECS="mp4a.40.2",AUDIO="group_groupname"
    
stream-1.m3u8
    

    
#EXT-X-STREAM-INF:BANDWIDTH=174900,CODECS="mp4a.40.2",AUDIO="group_groupname"
    
stream-2.m3u8
    

    
#EXT-X-STREAM-INF:BANDWIDTH=174900,CODECS="mp4a.40.2",AUDIO="group_groupname"
    
stream-3.m3u8
    

    
#EXT-X-STREAM-INF:BANDWIDTH=174900,CODECS="mp4a.40.2",AUDIO="group_groupname"
    
stream-4.m3u8

    While this does seem to work with VLC, I need the EXT-X-MEDIA:TYPE tag to contain the LANGUAGE property. (the player I’m working with uses it to parse the audio tracks’ language) I can’t figure out how to do that based on the documentation I’ve found.

    Could anyone help me with this ?

    Thanks !

  • cbs_h265 : Add PTL parsing for Main 10 Still Picture profile

    27 octobre 2018, par Mark Thompson
    cbs_h265 : Add PTL parsing for Main 10 Still Picture profile

    This was added in the 2018 version of the standard.
    • [DH] libavcodec/cbs_h265_syntax_template.c

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