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• FFMPEG Incorrect Stream Index Matching with -var_stream_map

  28 décembre 2018, par Hugo

  I am using a bash script to run an FFMPEG command to turn an input file called Awoo.mkv into three HLS playlists each with a different resolution, video and audio bitrate.

  This is the script :

  name=gw
  
  
  
  rm /tmp/hls/*
  
  
  
  ./ffmpeg -y \
  
      -stream_loop -1 -re \
  
      -i Awoo.mkv \
  
      -b:v:0 4000k -b:a:0 512k -s:0 1920x1080 -r:0 30 -g:0 90 -preset:0 superfast -tune:0 zerolatency -profile:v:0 high -level:v:0 4 \
  
      -b:v:1 2500k -b:a:1 256k -s:1 1280x720 -r:1 30 -g:1 90 -preset:1 superfast -tune:1 zerolatency -profile:v:1 high -level:v:1 4 \
  
      -b:v:2 800k -b:a:2 255k -s:2 960x540 -r:2 30 -g:2 90 -preset:2 superfast -tune:2 zerolatency -profile:v:2 high -level:v:2 4 \
  
      -hls_time 6 \
  
      -hls_list_size 2 \
  
      -hls_flags delete_segments \
  
      -map 0:v -map 0:a -map 0:v -map 0:a -map 0:v -map 0:a \
  
      -var_stream_map "v:0,a:0 v:1,a:1 v:2,a:2" \
  
      -f hls -master_pl_name "${name}.m3u8" \
  
      -hls_segment_filename "/tmp/hls/${name}_-%d-%v.ts" \
  
      "/tmp/hls/${name}_%v.m3u8"

  This almost works great, but the output is slightly off...

  If you look at these two lines :

  -b:v:1 2500k -b:a:1 256k -s:1 1280x720 -r:1 30 -g:1 90 -preset:1 superfast -tune:1 zerolatency -profile:v:1 high -level:v:1 4 \
  
  -b:v:2 800k -b:a:2 255k -s:2 960x540 -r:2 30 -g:2 90 -preset:2 superfast -tune:2 zerolatency -profile:v:2 high -level:v:2 4 \

  A resolution of 1280x720 should have a bitrate of 2500k, a resolution of 960x540 should have a bitrate of 800k.

  This is the relevant output from FFMPEG :

  Stream #0:2(und): Video: h264 (libx264), yuv420p(progressive), 960x540 [SAR 1:1 DAR 16:9], q=-1--1, 2500 kb/s, 30 fps, 90k tbn, 30 tbc (default)
  
  Metadata:
  
    CREATION_TIME   : 2017-01-27 05:02:53
  
    LANGUAGE        : und
  
    HANDLER_NAME    : VideoHandler
  
    DURATION        : 00:02:24.310000000
  
    encoder         : Lavc58.18.100 libx264
  
  Side data:
  
    cpb: bitrate max/min/avg: 0/0/2500000 buffer size: 0 vbv_delay: -1
  
  Stream #0:3(eng): Audio: aac (LC), 44100 Hz, stereo, fltp, 256 kb/s (default)
  
  Metadata:
  
    LANGUAGE        : eng
  
    DURATION        : 00:02:24.348000000
  
    encoder         : Lavc58.18.100 aac
  
  Stream #0:4(und): Video: h264 (libx264), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 800 kb/s, 29 fps, 90k tbn, 29 tbc (default)
  
  Metadata:
  
    CREATION_TIME   : 2017-01-27 05:02:53
  
    LANGUAGE        : und
  
    HANDLER_NAME    : VideoHandler
  
    DURATION        : 00:02:24.310000000
  
    encoder         : Lavc58.18.100 libx264
  
  Side data:
  
    cpb: bitrate max/min/avg: 0/0/800000 buffer size: 0 vbv_delay: -1
  
  Stream #0:5(eng): Audio: aac (LC), 44100 Hz, stereo, fltp, 255 kb/s (default)
  
  Metadata:
  
    LANGUAGE        : eng
  
    DURATION        : 00:02:24.348000000
  
    encoder         : Lavc58.18.100 aac

  Stream #0:2 is given the wrong resolution of 960x540, and therefore also the wrong bitrate of 2500. This should be the resolution of 1280x720, but this is below matched with the bitrate of 800.

  From what I know, the resolutions are showing in the wrong order, if 720 was first and 540 after then everything would match up fine. I’m not sure what’s causing this, I am new to the -var_stream_map.

  If it is relevant, the entire output from FFMPEG is below :

  ffmpeg version 4.0.3-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  
    configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg
  
    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
  
    libswscale      5.  1.100 /  5.  1.100
  
    libswresample   3.  1.100 /  3.  1.100
  
    libpostproc    55.  1.100 / 55.  1.100
  
  Input #0, matroska,webm, from 'Awoo.mkv':
  
    Metadata:
  
      COMPATIBLE_BRANDS: iso6avc1mp41
  
      MAJOR_BRAND     : dash
  
      MINOR_VERSION   : 0
  
      ENCODER         : Lavf56.40.101
  
    Duration: 00:02:24.35, start: 0.000000, bitrate: 1114 kb/s
  
      Stream #0:0(und): Video: h264 (Main), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 29 fps, 29 tbr, 1k tbn, 58 tbc (default)
  
      Metadata:
  
        CREATION_TIME   : 2017-01-27 05:02:53
  
        LANGUAGE        : und
  
        HANDLER_NAME    : VideoHandler
  
        DURATION        : 00:02:24.310000000
  
      Stream #0:1(eng): Audio: vorbis, 44100 Hz, stereo, fltp (default)
  
      Metadata:
  
        LANGUAGE        : eng
  
        DURATION        : 00:02:24.348000000
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (vorbis (native) -> aac (native))
  
    Stream #0:0 -> #0:2 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:3 (vorbis (native) -> aac (native))
  
    Stream #0:0 -> #0:4 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:5 (vorbis (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 0x664d1c0] using SAR=1/1
  
  [libx264 @ 0x664d1c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x664d1c0] profile High, level 4.0, 4:2:0, 8-bit
  
  [libx264 @ 0x664d1c0] 264 - core 157 r2935 545de2f - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x3 me=dia subme=1 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=4 lookahead_threads=4 sliced_threads=1 slices=4 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=1 keyint=90 keyint_min=9 scenecut=40 intra_refresh=0 rc=abr mbtree=0 bitrate=4000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  [libx264 @ 0x664f080] using SAR=1/1
  
  [libx264 @ 0x664f080] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x664f080] profile High, level 4.0, 4:2:0, 8-bit
  
  [libx264 @ 0x664f080] 264 - core 157 r2935 545de2f - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x3 me=dia subme=1 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=4 lookahead_threads=4 sliced_threads=1 slices=4 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=1 keyint=90 keyint_min=9 scenecut=40 intra_refresh=0 rc=abr mbtree=0 bitrate=2500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  [libx264 @ 0x6680b80] using SAR=1/1
  
  [libx264 @ 0x6680b80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x6680b80] profile High, level 4.0, 4:2:0, 8-bit
  
  [libx264 @ 0x6680b80] 264 - core 157 r2935 545de2f - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=800 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  [hls @ 0x6650000] Opening '/tmp/hls/gw_-0-0.ts' for writing
  
  [hls @ 0x6650000] Opening '/tmp/hls/gw_-0-1.ts' for writing
  
  [hls @ 0x6650000] Opening '/tmp/hls/gw_-0-2.ts' for writing
  
  Output #0, hls, to '/tmp/hls/gw_%v.m3u8':
  
    Metadata:
  
      COMPATIBLE_BRANDS: iso6avc1mp41
  
      MAJOR_BRAND     : dash
  
      MINOR_VERSION   : 0
  
      encoder         : Lavf58.12.100
  
      Stream #0:0(und): Video: h264 (libx264), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 4000 kb/s, 30 fps, 90k tbn, 30 tbc (default)
  
      Metadata:
  
        CREATION_TIME   : 2017-01-27 05:02:53
  
        LANGUAGE        : und
  
        HANDLER_NAME    : VideoHandler
  
        DURATION        : 00:02:24.310000000
  
        encoder         : Lavc58.18.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/4000000 buffer size: 0 vbv_delay: -1
  
      Stream #0:1(eng): Audio: aac (LC), 44100 Hz, stereo, fltp, 512 kb/s (default)
  
      Metadata:
  
        LANGUAGE        : eng
  
        DURATION        : 00:02:24.348000000
  
        encoder         : Lavc58.18.100 aac
  
      Stream #0:2(und): Video: h264 (libx264), yuv420p(progressive), 960x540 [SAR 1:1 DAR 16:9], q=-1--1, 2500 kb/s, 30 fps, 90k tbn, 30 tbc (default)
  
      Metadata:
  
        CREATION_TIME   : 2017-01-27 05:02:53
  
        LANGUAGE        : und
  
        HANDLER_NAME    : VideoHandler
  
        DURATION        : 00:02:24.310000000
  
        encoder         : Lavc58.18.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/2500000 buffer size: 0 vbv_delay: -1
  
      Stream #0:3(eng): Audio: aac (LC), 44100 Hz, stereo, fltp, 256 kb/s (default)
  
      Metadata:
  
        LANGUAGE        : eng
  
        DURATION        : 00:02:24.348000000
  
        encoder         : Lavc58.18.100 aac
  
      Stream #0:4(und): Video: h264 (libx264), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 800 kb/s, 29 fps, 90k tbn, 29 tbc (default)
  
      Metadata:
  
        CREATION_TIME   : 2017-01-27 05:02:53
  
        LANGUAGE        : und
  
        HANDLER_NAME    : VideoHandler
  
        DURATION        : 00:02:24.310000000
  
        encoder         : Lavc58.18.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/800000 buffer size: 0 vbv_delay: -1
  
      Stream #0:5(eng): Audio: aac (LC), 44100 Hz, stereo, fltp, 255 kb/s (default)
  
      Metadata:
  
        LANGUAGE        : eng
  
        DURATION        : 00:02:24.348000000
  
        encoder         : Lavc58.18.100 aac
  
  [hls @ 0x6650000] Opening '/tmp/hls/gw_0.m3u8.tmp' for writing6.50 bitrate=N/A dup=12 drop=0 speed=0.965x    
  
  [hls @ 0x6650000] Opening '/tmp/hls/gw_1.m3u8.tmp' for writing
  
  [hls @ 0x6650000] Opening '/tmp/hls/gw_2.m3u8.tmp' for writing
  
  [hls @ 0x6650000] Opening '/tmp/hls/gw.m3u8' for writing

• [ffmpeg]How do I play udp streams on my phone

  30 décembre 2018, par 徐思龙

  I used FFMPEG to record the screen push stream [UDP]

  This is the command line I typed

  Ffmpeg-f gdigrab-framerate 25-offset_x 10-offset_y 20-video_size 640x480-i desktop vcodec libx264-preset :v ultrafast-tune :vzerolatency -f h264 udp ://localhost:8888

  ffplay can be played on the localhost :ffplay udp ://192.168.31.18:8888

  Use VLC APP on IPHONE, input udp ://192.168.31.18:8888, it can’t play.

  What do I need to do ?

  thank you

• video compression using ffmpeg not working save as empty file after conversion

  25 mars 2019, par HEMANTH KUMAR

  I’m using CodeIgniter and also installed FFmpeg

  I have converted the big size video to small size and it worked in localhost.

  On the live server it’s converting but saving has an empty file.

  $v = '/var/www/html/login/public/restaurants/171/items/'.$rowv->item_id.'/'.$rowv->image;              
  
  $info = pathinfo($rowv->image);
  
  $v2 ='/var/www/html/login/public/restaurants/171/items/'.$rowv->item_id.'/'.'demo'. '.' . $ext;
  
  
  
  
  
  $a = exec("ffmpeg -y -loglevel error -i ".$v." -vcodec libx264 -crf 28 -preset faster -tune film ".$v2);