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• Quick stream from file which exists

  4 mai 2017, par parsa

  I implement live streaming from mp4 video file which exists on the path with ffmpeg under hls format.
  When my video file have the quality greater than hd720 , in encoding there are so many delays for creating .ts fragments.
  I mean the .ts fragments slowly produced on my path,and because of it I have so many delays in showing the stream.
  Here is my ffmpeg code for streaming :

  ffmpeg -re -i 123.mp4 -s cga -f hls -hls_list_size 0 -c:v libx264 -c:a aac 200p/out.m3u8 
  
                -s nhd -f hls -hls_list_size 0 -c:v libx264 -c:a aac 360p/out.m3u8 
  
                -s hd480 -f hls -hls_list_size 0 -c:v libx264 -c:a aac 480p/out.m3u8 
  
                -s hd720 -f hls -hls_list_size 0 -c:v libx264 -c:a aac 720p/out.m3u8
  
                -s hd1080 -f hls -hls_list_size 0 -c:v libx264 -c:a aac 1080p/out.m3u8

  And here is the console output :

      ffmpeg -re -i ../files/412-887123464/video/412-887123464.mp4 -s cga -f hls -hls_list_size 0 -c:v libx264 -c:a aac ../fil
  
          es/412-887123464/video/200p/out.m3u8  -s nhd -f hls -hls_list_size 0 -c:v libx264 -c:a aac ../files/412-887123464/video/360p/out.m3u8 -s hd480 -f hls -
  
          hls_list_size 0 -c:v libx264 -c:a aac ../files/412-887123464/video/480p/out.m3u8 -s hd720 -f hls -hls_list_size 0 -c:v libx264 -c:a aac ../files/412-88
  
          7123464/video/720p/out.m3u8 -s hd1080 -f hls -hls_list_size 0 -c:v libx264 -c:a aac ../files/412-887123464/video/1080p/out.m3u8
  
          ffmpeg version N-82225-gb4e9252 Copyright (c) 2000-2016 the FFmpeg developers
  
            built with gcc 5.4.0 (GCC)
  
            configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --e
  
          nable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcac
  
          a --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-lib
  
          opencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr
  
           --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwa
  
          vpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zl
  
          ib
  
            libavutil      55. 35.100 / 55. 35.100
  
            libavcodec     57. 66.101 / 57. 66.101
  
            libavformat    57. 57.100 / 57. 57.100
  
            libavdevice    57.  2.100 / 57.  2.100
  
            libavfilter     6. 66.100 /  6. 66.100
  
            libswscale      4.  3.100 /  4.  3.100
  
            libswresample   2.  4.100 /  2.  4.100
  
            libpostproc    54.  2.100 / 54.  2.100
  
          Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '../files/412-887123464/video/412-887123464.mp4':
  
            Metadata:
  
              major_brand     : isom
  
              minor_version   : 512
  
              compatible_brands: isomiso2avc1mp41
  
              encoder         : Lavf57.31.100
  
            Duration: 00:05:04.07, start: 0.000000, bitrate: 3108 kb/s
  
              Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 2976 kb/s, 25 fps, 25 tbr, 90k tbn, 50
  
          tbc (default)
  
              Metadata:
  
                handler_name    : VideoHandler
  
              Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
  
              Metadata:
  
                handler_name    : SoundHandler
  
          [libx264 @ 0000000001c53f00] using SAR=10/9
  
          [libx264 @ 0000000001c53f00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
          [libx264 @ 0000000001c53f00] profile High, level 1.3
  
          Output #0, hls, to '../files/412-887123464/video/200p/out.m3u8':
  
            Metadata:
  
              major_brand     : isom
  
              minor_version   : 512
  
              compatible_brands: isomiso2avc1mp41
  
              encoder         : Lavf57.57.100
  
              Stream #0:0(und): Video: h264 (libx264), yuv420p, 320x200 [SAR 10:9 DAR 16:9], q=-1--1, 25 fps, 90k tbn, 25 tbc (default)
  
              Metadata:
  
                handler_name    : VideoHandler
  
                encoder         : Lavc57.66.101 libx264
  
              Side data:
  
                cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
              Stream #0:1(und): Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)
  
              Metadata:
  
                handler_name    : SoundHandler
  
                encoder         : Lavc57.66.101 aac
  
          [libx264 @ 0000000001f87180] using SAR=1/1
  
          [libx264 @ 0000000001f87180] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
          [libx264 @ 0000000001f87180] profile High, level 3.0
  
          Output #1, hls, to '../files/412-887123464/video/360p/out.m3u8':
  
            Metadata:
  
              major_brand     : isom
  
              minor_version   : 512
  
              compatible_brands: isomiso2avc1mp41
  
              encoder         : Lavf57.57.100
  
              Stream #1:0(und): Video: h264 (libx264), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 90k tbn, 25 tbc (default)
  
              Metadata:
  
                handler_name    : VideoHandler
  
                encoder         : Lavc57.66.101 libx264
  
              Side data:
  
                cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
              Stream #1:1(und): Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)
  
              Metadata:
  
                handler_name    : SoundHandler
  
                encoder         : Lavc57.66.101 aac
  
          [libx264 @ 0000000001c55ba0] using SAR=640/639
  
          [libx264 @ 0000000001c55ba0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
          [libx264 @ 0000000001c55ba0] profile High, level 3.0
  
          Output #2, hls, to '../files/412-887123464/video/480p/out.m3u8':
  
            Metadata:
  
              major_brand     : isom
  
              minor_version   : 512
  
              compatible_brands: isomiso2avc1mp41
  
              encoder         : Lavf57.57.100
  
              Stream #2:0(und): Video: h264 (libx264), yuv420p, 852x480 [SAR 640:639 DAR 16:9], q=-1--1, 25 fps, 90k tbn, 25 tbc (default)
  
              Metadata:
  
                handler_name    : VideoHandler
  
                encoder         : Lavc57.66.101 libx264
  
              Side data:
  
                cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
              Stream #2:1(und): Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)
  
              Metadata:
  
                handler_name    : SoundHandler
  
                encoder         : Lavc57.66.101 aac
  
          [libx264 @ 0000000001ca0220] using SAR=1/1
  
          [libx264 @ 0000000001ca0220] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
          [libx264 @ 0000000001ca0220] profile High, level 3.1
  
          Output #3, hls, to '../files/412-887123464/video/720p/out.m3u8':
  
            Metadata:
  
              major_brand     : isom
  
              minor_version   : 512
  
              compatible_brands: isomiso2avc1mp41
  
              encoder         : Lavf57.57.100
  
              Stream #3:0(und): Video: h264 (libx264), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 90k tbn, 25 tbc (default)
  
              Metadata:
  
                handler_name    : VideoHandler
  
                encoder         : Lavc57.66.101 libx264
  
              Side data:
  
                cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
              Stream #3:1(und): Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)
  
              Metadata:
  
                handler_name    : SoundHandler
  
                encoder         : Lavc57.66.101 aac
  
          [libx264 @ 0000000001ca23e0] using SAR=1/1
  
          [libx264 @ 0000000001ca23e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
          [libx264 @ 0000000001ca23e0] profile High, level 4.0
  
          Output #4, hls, to '../files/412-887123464/video/1080p/out.m3u8':
  
            Metadata:
  
              major_brand     : isom
  
              minor_version   : 512
  
              compatible_brands: isomiso2avc1mp41
  
              encoder         : Lavf57.57.100
  
              Stream #4:0(und): Video: h264 (libx264), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 90k tbn, 25 tbc (default)
  
              Metadata:
  
                handler_name    : VideoHandler
  
                encoder         : Lavc57.66.101 libx264
  
              Side data:
  
                cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
              Stream #4:1(und): Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)
  
              Metadata:
  
                handler_name    : SoundHandler
  
                encoder         : Lavc57.66.101 aac
  
          Stream mapping:
  
            Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
            Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
            Stream #0:0 -> #1:0 (h264 (native) -> h264 (libx264))
  
            Stream #0:1 -> #1:1 (aac (native) -> aac (native))
  
            Stream #0:0 -> #2:0 (h264 (native) -> h264 (libx264))
  
            Stream #0:1 -> #2:1 (aac (native) -> aac (native))
  
            Stream #0:0 -> #3:0 (h264 (native) -> h264 (libx264))
  
            Stream #0:1 -> #3:1 (aac (native) -> aac (native))
  
            Stream #0:0 -> #4:0 (h264 (native) -> h264 (libx264))
  
            Stream #0:1 -> #4:1 (aac (native) -> aac (native))
  
          Press [q] to stop, [?] for help
  
  frame= 7600 fps= 21 q=-1.0 Lq=-1.0 q=-1.0 q=-1.0 q=-1.0 size=N/A time=00:05:04.06 bitrate=N/A speed=0.835x
  
  video:294980kB audio:23995kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
  
  [libx264 @ 0000000001d33f00] frame I:33    Avg QP:19.93  size: 11412
  
  [libx264 @ 0000000001d33f00] frame P:2281  Avg QP:23.72  size:  3112
  
  [libx264 @ 0000000001d33f00] frame B:5286  Avg QP:28.59  size:   446
  
  [libx264 @ 0000000001d33f00] consecutive B-frames:  4.3%  6.9%  5.9% 82.8%
  
  [libx264 @ 0000000001d33f00] mb I  I16..4: 12.9% 42.9% 44.2%
  
  [libx264 @ 0000000001d33f00] mb P  I16..4:  1.3%  4.4%  2.3%  P16..4: 41.4% 22.0% 15.5%  0.0%  0.0%    skip:13.1%
  
  [libx264 @ 0000000001d33f00] mb B  I16..4:  0.0%  0.1%  0.0%  B16..8: 35.2%  5.9%  2.1%  direct: 3.0%  skip:53.6%  L0:35.3% L1:48.0% BI:16.8%
  
  [libx264 @ 0000000001d33f00] 8x8 transform intra:53.4% inter:57.9%
  
  [libx264 @ 0000000001d33f00] coded y,uvDC,uvAC intra: 70.6% 89.7% 67.6% inter: 18.1% 20.3% 7.2%
  
  [libx264 @ 0000000001d33f00] i16 v,h,dc,p: 24% 24%  6% 45%
  
  [libx264 @ 0000000001d33f00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 14% 19%  5%  5%  7%  5% 10%  7%
  
  [libx264 @ 0000000001d33f00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 15% 15%  6%  6%  7%  6%  8%  6%
  
  [libx264 @ 0000000001d33f00] i8c dc,h,v,p: 42% 17% 28% 14%
  
  [libx264 @ 0000000001d33f00] Weighted P-Frames: Y:26.3% UV:12.9%
  
  [libx264 @ 0000000001d33f00] ref P L0: 58.7% 24.7% 10.9%  4.8%  1.0%
  
  [libx264 @ 0000000001d33f00] ref B L0: 92.6%  5.8%  1.6%
  
  [libx264 @ 0000000001d33f00] ref B L1: 96.3%  3.7%
  
  [libx264 @ 0000000001d33f00] kb/s:258.68
  
  [aac @ 00000000005fc9e0] Qavg: 686.637
  
  [libx264 @ 0000000002017180] frame I:31    Avg QP:19.77  size: 29228
  
  [libx264 @ 0000000002017180] frame P:2040  Avg QP:23.08  size:  8765
  
  [libx264 @ 0000000002017180] frame B:5529  Avg QP:27.28  size:  1471
  
  [libx264 @ 0000000002017180] consecutive B-frames:  1.3%  4.2%  2.4% 92.1%
  
  [libx264 @ 0000000002017180] mb I  I16..4:  8.3% 58.8% 32.9%
  
  [libx264 @ 0000000002017180] mb P  I16..4:  3.2%  9.5%  2.6%  P16..4: 41.5% 19.5% 11.4%  0.0%  0.0%    skip:12.2%
  
  [libx264 @ 0000000002017180] mb B  I16..4:  0.2%  0.3%  0.1%  B16..8: 34.5%  5.8%  1.7%  direct: 2.7%  skip:54.7%  L0:35.9% L1:49.5% BI:14.6%
  
  [libx264 @ 0000000002017180] 8x8 transform intra:61.2% inter:67.3%
  
  [libx264 @ 0000000002017180] coded y,uvDC,uvAC intra: 55.8% 84.8% 51.3% inter: 15.6% 19.3% 3.9%
  
  [libx264 @ 0000000002017180] i16 v,h,dc,p: 24% 29%  8% 39%
  
  [libx264 @ 0000000002017180] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 17% 21%  5%  5%  7%  5%  8%  6%
  
  [libx264 @ 0000000002017180] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 18% 15%  6%  7%  7%  6%  7%  5%
  
  [libx264 @ 0000000002017180] i8c dc,h,v,p: 42% 18% 27% 13%
  
  [libx264 @ 0000000002017180] Weighted P-Frames: Y:22.3% UV:12.2%
  
  [libx264 @ 0000000002017180] ref P L0: 58.5% 23.4% 12.2%  5.2%  0.8%
  
  [libx264 @ 0000000002017180] ref B L0: 93.1%  5.3%  1.6%
  
  [libx264 @ 0000000002017180] ref B L1: 96.6%  3.4%
  
  [libx264 @ 0000000002017180] kb/s:708.47
  
  [aac @ 0000000001d35200] Qavg: 686.637
  
  [libx264 @ 0000000001d35ba0] frame I:31    Avg QP:19.63  size: 41522
  
  [libx264 @ 0000000001d35ba0] frame P:2025  Avg QP:22.86  size: 13415
  
  [libx264 @ 0000000001d35ba0] frame B:5544  Avg QP:26.52  size:  2471
  
  [libx264 @ 0000000001d35ba0] consecutive B-frames:  1.1%  3.9%  2.8% 92.2%
  
  [libx264 @ 0000000001d35ba0] mb I  I16..4: 10.6% 62.4% 26.9%
  
  [libx264 @ 0000000001d35ba0] mb P  I16..4:  4.7% 12.4%  2.6%  P16..4: 41.1% 17.8%  9.4%  0.0%  0.0%    skip:11.9%
  
  [libx264 @ 0000000001d35ba0] mb B  I16..4:  0.3%  0.5%  0.1%  B16..8: 34.0%  5.5%  1.4%  direct: 2.9%  skip:55.3%  L0:36.7% L1:50.2% BI:13.1%
  
  [libx264 @ 0000000001d35ba0] 8x8 transform intra:61.7% inter:71.6%
  
  [libx264 @ 0000000001d35ba0] coded y,uvDC,uvAC intra: 48.0% 81.9% 43.3% inter: 14.7% 19.7% 2.6%
  
  [libx264 @ 0000000001d35ba0] i16 v,h,dc,p: 27% 29%  9% 35%
  
  [libx264 @ 0000000001d35ba0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 19% 22%  5%  5%  6%  5%  7%  5%
  
  [libx264 @ 0000000001d35ba0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 25% 16%  5%  6%  7%  6%  6%  4%
  
  [libx264 @ 0000000001d35ba0] i8c dc,h,v,p: 42% 20% 26% 12%
  
  [libx264 @ 0000000001d35ba0] Weighted P-Frames: Y:18.1% UV:10.8%
  
  [libx264 @ 0000000001d35ba0] ref P L0: 59.5% 22.6% 12.6%  4.8%  0.5%
  
  [libx264 @ 0000000001d35ba0] ref B L0: 93.6%  5.0%  1.4%
  
  [libx264 @ 0000000001d35ba0] ref B L1: 97.1%  2.9%
  
  [libx264 @ 0000000001d35ba0] kb/s:1109.23
  
  [aac @ 0000000001d828a0] Qavg: 686.637
  
  [libx264 @ 0000000001d7f880] frame I:32    Avg QP:19.45  size: 64737
  
  [libx264 @ 0000000001d7f880] frame P:2104  Avg QP:22.44  size: 23985
  
  [libx264 @ 0000000001d7f880] frame B:5464  Avg QP:25.65  size:  4999
  
  [libx264 @ 0000000001d7f880] consecutive B-frames:  1.2%  7.7%  3.2% 87.8%
  
  [libx264 @ 0000000001d7f880] mb I  I16..4: 12.5% 70.0% 17.5%
  
  [libx264 @ 0000000001d7f880] mb P  I16..4:  6.7% 17.1%  1.8%  P16..4: 40.7% 14.9%  6.6%  0.0%  0.0%    skip:12.2%
  
  [libx264 @ 0000000001d7f880] mb B  I16..4:  0.6%  0.9%  0.1%  B16..8: 32.5%  4.7%  1.0%  direct: 2.9%  skip:57.4%  L0:37.6% L1:51.6% BI:10.8%
  
  [libx264 @ 0000000001d7f880] 8x8 transform intra:65.7% inter:77.5%
  
  [libx264 @ 0000000001d7f880] coded y,uvDC,uvAC intra: 39.5% 76.4% 32.4% inter: 13.2% 19.8% 1.5%
  
  [libx264 @ 0000000001d7f880] i16 v,h,dc,p: 32% 27% 10% 31%
  
  [libx264 @ 0000000001d7f880] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 18% 23%  4%  5%  5%  4%  5%  4%
  
  [libx264 @ 0000000001d7f880] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 20% 15%  5%  7%  7%  6%  6%  4%
  
  [libx264 @ 0000000001d7f880] i8c dc,h,v,p: 42% 19% 27% 12%
  
  [libx264 @ 0000000001d7f880] Weighted P-Frames: Y:10.5% UV:6.7%
  
  [libx264 @ 0000000001d7f880] ref P L0: 62.3% 20.4% 12.7%  4.3%  0.3%
  
  [libx264 @ 0000000001d7f880] ref B L0: 93.4%  5.2%  1.4%
  
  [libx264 @ 0000000001d7f880] ref B L1: 97.7%  2.3%
  
  [libx264 @ 0000000001d7f880] kb/s:2101.26
  
  [aac @ 0000000001d81560] Qavg: 686.637
  
  [libx264 @ 0000000001d7fd60] frame I:33    Avg QP:18.36  size: 98904
  
  [libx264 @ 0000000001d7fd60] frame P:3180  Avg QP:21.67  size: 33377
  
  [libx264 @ 0000000001d7fd60] frame B:4387  Avg QP:24.61  size:  7729
  
  [libx264 @ 0000000001d7fd60] consecutive B-frames:  2.7% 55.9% 15.6% 25.9%
  
  [libx264 @ 0000000001d7fd60] mb I  I16..4: 22.4% 66.9% 10.7%
  
  [libx264 @ 0000000001d7fd60] mb P  I16..4:  9.9% 17.8%  0.7%  P16..4: 40.4%  9.2%  3.0%  0.0%  0.0%    skip:19.0%
  
  [libx264 @ 0000000001d7fd60] mb B  I16..4:  0.8%  1.3%  0.1%  B16..8: 30.2%  2.6%  0.4%  direct: 1.7%  skip:63.0%  L0:38.1% L1:54.9% BI: 7.0%
  
  [libx264 @ 0000000001d7fd60] 8x8 transform intra:62.5% inter:82.9%
  
  [libx264 @ 0000000001d7fd60] coded y,uvDC,uvAC intra: 25.4% 59.5% 11.6% inter: 9.6% 16.3% 0.7%
  
  [libx264 @ 0000000001d7fd60] i16 v,h,dc,p: 33% 28% 15% 24%
  
  [libx264 @ 0000000001d7fd60] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 34% 20% 29%  3%  3%  4%  3%  3%  3%
  
  [libx264 @ 0000000001d7fd60] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 25% 16%  4%  6%  6%  5%  5%  4%
  
  [libx264 @ 0000000001d7fd60] i8c dc,h,v,p: 39% 21% 28% 12%
  
  [libx264 @ 0000000001d7fd60] Weighted P-Frames: Y:5.7% UV:3.6%
  
  [libx264 @ 0000000001d7fd60] ref P L0: 70.0% 18.6%  8.3%  3.1%  0.1%
  
  [libx264 @ 0000000001d7fd60] ref B L0: 91.4%  7.6%  1.0%
  
  [libx264 @ 0000000001d7fd60] ref B L1: 99.0%  1.0%
  
  [libx264 @ 0000000001d7fd60] kb/s:3771.31
  
  [aac @ 0000000001d823e0] Qavg: 686.637

  But I don’t have any problem for streaming files with creating resolutions from a file which have lower orginal quality than hd1080
  What I can to do ?

• Can not add tmcd stream using libavcodec to replicate behavior of ffmpeg -timecode option

  2 août, par Sailor Jerry

  I'm trying to replicate option of command line ffmpeg -timecode in my C/C++ code. For some reasons the tcmd stream is not written to the output file. However the av_dump_format shows it in run time

  


  Here is my minimal test

  


  #include <iostream>&#xA;extern "C" {&#xA;#include <libavcodec></libavcodec>avcodec.h>&#xA;#include <libavformat></libavformat>avformat.h>&#xA;#include <libavutil></libavutil>avutil.h>&#xA;#include <libswscale></libswscale>swscale.h>&#xA;#include <libavutil></libavutil>opt.h>&#xA;#include <libavutil></libavutil>imgutils.h>&#xA;#include <libavutil></libavutil>samplefmt.h>&#xA;}&#xA;bool checkProResAvailability() {&#xA;  const AVCodec* codec = avcodec_find_encoder_by_name("prores_ks");&#xA;  if (!codec) {&#xA;    std::cerr &lt;&lt; "ProRes codec not available. Please install FFmpeg with ProRes support." &lt;&lt; std::endl;&#xA;    return false;&#xA;  }&#xA;  return true;&#xA;}&#xA;&#xA;int main(){&#xA;  av_log_set_level(AV_LOG_INFO);&#xA;&#xA;  const char* outputFileName = "test_tmcd.mov";&#xA;  AVFormatContext* formatContext = nullptr;&#xA;  AVCodecContext* videoCodecContext = nullptr;&#xA;&#xA;  if (!checkProResAvailability()) {&#xA;    return -1;&#xA;  }&#xA;&#xA;  std::cout &lt;&lt; "Creating test file with tmcd stream: " &lt;&lt; outputFileName &lt;&lt; std::endl;&#xA;&#xA;  // Allocate the output format context&#xA;  if (avformat_alloc_output_context2(&amp;formatContext, nullptr, "mov", outputFileName) &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to allocate output context!" &lt;&lt; std::endl;&#xA;    return -1;&#xA;  }&#xA;&#xA;  if (avio_open(&amp;formatContext->pb, outputFileName, AVIO_FLAG_WRITE) &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to open output file!" &lt;&lt; std::endl;&#xA;    avformat_free_context(formatContext);&#xA;    return -1;&#xA;  }&#xA;&#xA;  // Find ProRes encoder&#xA;  const AVCodec* videoCodec = avcodec_find_encoder_by_name("prores_ks");&#xA;  if (!videoCodec) {&#xA;    std::cerr &lt;&lt; "Failed to find the ProRes encoder!" &lt;&lt; std::endl;&#xA;    avio_close(formatContext->pb);&#xA;    avformat_free_context(formatContext);&#xA;    return -1;&#xA;  }&#xA;&#xA;  // Video stream setup&#xA;  AVStream* videoStream = avformat_new_stream(formatContext, nullptr);&#xA;  if (!videoStream) {&#xA;    std::cerr &lt;&lt; "Failed to create video stream!" &lt;&lt; std::endl;&#xA;    avio_close(formatContext->pb);&#xA;    avformat_free_context(formatContext);&#xA;    return -1;&#xA;  }&#xA;&#xA;  videoCodecContext = avcodec_alloc_context3(videoCodec);&#xA;  if (!videoCodecContext) {&#xA;    std::cerr &lt;&lt; "Failed to allocate video codec context!" &lt;&lt; std::endl;&#xA;    avio_close(formatContext->pb);&#xA;    avformat_free_context(formatContext);&#xA;    return -1;&#xA;  }&#xA;&#xA;  videoCodecContext->width = 1920;&#xA;  videoCodecContext->height = 1080;&#xA;  videoCodecContext->pix_fmt = AV_PIX_FMT_YUV422P10;&#xA;  videoCodecContext->time_base = (AVRational){1, 30}; // Set FPS: 30&#xA;  videoCodecContext->bit_rate = 2000000;&#xA;&#xA;  if (avcodec_open2(videoCodecContext, videoCodec, nullptr) &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to open ProRes codec!" &lt;&lt; std::endl;&#xA;    avcodec_free_context(&amp;videoCodecContext);&#xA;    avio_close(formatContext->pb);&#xA;    avformat_free_context(formatContext);&#xA;    return -1;&#xA;  }&#xA;&#xA;  if (avcodec_parameters_from_context(videoStream->codecpar, videoCodecContext) &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to copy codec parameters to video stream!" &lt;&lt; std::endl;&#xA;    avcodec_free_context(&amp;videoCodecContext);&#xA;    avio_close(formatContext->pb);&#xA;    avformat_free_context(formatContext);&#xA;    return -1;&#xA;  }&#xA;&#xA;  videoStream->time_base = videoCodecContext->time_base;&#xA;&#xA;  // Timecode stream setup&#xA;  AVStream* timecodeStream = avformat_new_stream(formatContext, nullptr);&#xA;  if (!timecodeStream) {&#xA;    std::cerr &lt;&lt; "Failed to create timecode stream!" &lt;&lt; std::endl;&#xA;    avcodec_free_context(&amp;videoCodecContext);&#xA;    avio_close(formatContext->pb);&#xA;    avformat_free_context(formatContext);&#xA;    return -1;&#xA;  }&#xA;&#xA;  timecodeStream->codecpar->codec_type = AVMEDIA_TYPE_DATA;&#xA;  timecodeStream->codecpar->codec_id = AV_CODEC_ID_TIMED_ID3;&#xA;  timecodeStream->codecpar->codec_tag = MKTAG(&#x27;t&#x27;, &#x27;m&#x27;, &#x27;c&#x27;, &#x27;d&#x27;); // Timecode tag&#xA;  timecodeStream->time_base = (AVRational){1, 30}; // FPS: 30&#xA;&#xA;  if (av_dict_set(&amp;timecodeStream->metadata, "timecode", "00:00:30:00", 0) &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to set timecode metadata!" &lt;&lt; std::endl;&#xA;    avcodec_free_context(&amp;videoCodecContext);&#xA;    avio_close(formatContext->pb);&#xA;    avformat_free_context(formatContext);&#xA;    return -1;&#xA;  }&#xA;&#xA;  // Write container header&#xA;  if (avformat_write_header(formatContext, nullptr) &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to write file header!" &lt;&lt; std::endl;&#xA;    avcodec_free_context(&amp;videoCodecContext);&#xA;    avio_close(formatContext->pb);&#xA;    avformat_free_context(formatContext);&#xA;    return -1;&#xA;  }&#xA;&#xA;  // Encode a dummy video frame&#xA;  AVFrame* frame = av_frame_alloc();&#xA;  if (!frame) {&#xA;    std::cerr &lt;&lt; "Failed to allocate video frame!" &lt;&lt; std::endl;&#xA;    avcodec_free_context(&amp;videoCodecContext);&#xA;    avio_close(formatContext->pb);&#xA;    avformat_free_context(formatContext);&#xA;    return -1;&#xA;  }&#xA;&#xA;  frame->format = videoCodecContext->pix_fmt;&#xA;  frame->width = videoCodecContext->width;&#xA;  frame->height = videoCodecContext->height;&#xA;&#xA;  if (av_image_alloc(frame->data, frame->linesize, frame->width, frame->height, videoCodecContext->pix_fmt, 32) &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to allocate frame buffer!" &lt;&lt; std::endl;&#xA;    av_frame_free(&amp;frame);&#xA;    avcodec_free_context(&amp;videoCodecContext);&#xA;    avio_close(formatContext->pb);&#xA;    avformat_free_context(formatContext);&#xA;    return -1;&#xA;  }&#xA;&#xA;  // Fill frame with black&#xA;  memset(frame->data[0], 0, frame->linesize[0] * frame->height); // Y plane&#xA;  memset(frame->data[1], 128, frame->linesize[1] * frame->height / 2); // U plane&#xA;  memset(frame->data[2], 128, frame->linesize[2] * frame->height / 2); // V plane&#xA;&#xA;  // Encode the frame&#xA;  AVPacket packet;&#xA;  av_init_packet(&amp;packet);&#xA;  packet.data = nullptr;&#xA;  packet.size = 0;&#xA;&#xA;  if (avcodec_send_frame(videoCodecContext, frame) == 0) {&#xA;    if (avcodec_receive_packet(videoCodecContext, &amp;packet) == 0) {&#xA;      packet.stream_index = videoStream->index;&#xA;      av_interleaved_write_frame(formatContext, &amp;packet);&#xA;      av_packet_unref(&amp;packet);&#xA;    }&#xA;  }&#xA;&#xA;  av_frame_free(&amp;frame);&#xA;&#xA;  // Write a dummy packet for the timecode stream&#xA;  AVPacket tmcdPacket;&#xA;  av_init_packet(&amp;tmcdPacket);&#xA;  tmcdPacket.stream_index = timecodeStream->index;&#xA;  tmcdPacket.flags |= AV_PKT_FLAG_KEY;&#xA;  tmcdPacket.data = nullptr; // Empty packet for timecode&#xA;  tmcdPacket.size = 0;&#xA;  tmcdPacket.pts = 0; // Set necessary PTS&#xA;  tmcdPacket.dts = 0;&#xA;  av_interleaved_write_frame(formatContext, &amp;tmcdPacket);&#xA;&#xA;  // Write trailer&#xA;  if (av_write_trailer(formatContext) &lt; 0) {&#xA;    std::cerr &lt;&lt; "Failed to write file trailer!" &lt;&lt; std::endl;&#xA;  }&#xA;&#xA;  av_dump_format(formatContext, 0, "test.mov", 1);&#xA;&#xA;  // Cleanup&#xA;  avcodec_free_context(&amp;videoCodecContext);&#xA;  avio_close(formatContext->pb);&#xA;  avformat_free_context(formatContext);&#xA;&#xA;  std::cout &lt;&lt; "Test file with timecode created successfully: " &lt;&lt; outputFileName &lt;&lt; std::endl;&#xA;&#xA;  return 0;&#xA;}&#xA;</iostream>

  


  The code output is :

  


  Creating test file with tmcd stream: test_tmcd.mov
[prores_ks @ 0x11ce05790] Autoselected HQ profile to keep best quality. It can be overridden through -profile option.
[mov @ 0x11ce04f20] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
[mov @ 0x11ce04f20] Encoder did not produce proper pts, making some up.
Output #0, mov, to 'test.mov':
  Metadata:
    encoder         : Lavf61.7.100
  Stream #0:0: Video: prores (HQ) (apch / 0x68637061), yuv422p10le, 1920x1080, q=2-31, 2000 kb/s, 15360 tbn
  Stream #0:1: Data: timed_id3 (tmcd / 0x64636D74)
      Metadata:
        timecode        : 00:00:30:00
Test file with timecode created successfully: test_tmcd.mov


  


  The ffprobe output is :

  


  $ ffprobe  test_tmcd.mov
ffprobe version 7.1.1 Copyright (c) 2007-2025 the FFmpeg developers
  built with Apple clang version 16.0.0 (clang-1600.0.26.6)
  configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/7.1.1_3 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libharfbuzz --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.101 / 61. 19.101
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test_tmcd.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 512
    compatible_brands: qt  
    encoder         : Lavf61.7.100
  Duration: N/A, start: 0.000000, bitrate: N/A
  Stream #0:0[0x1]: Video: prores (HQ) (apch / 0x68637061), yuv422p10le, 1920x1080, 15360 tbn (default)
      Metadata:
        handler_name    : VideoHandler
        vendor_id       : FFMP
$ 



  


  Spent hours with all AI models, no help. Appeal to the human intelligence now

  


• Unwrapping Matomo 5.2.0 – Bringing you enhanced security and performance

  25 décembre 2024, par Daniel Crough — Latest Releases

   As we tie a bow on 2024, we’re delighted to share our final gift of the year. Matomo 5.2.0 comes wrapped with new security features, privacy controls, and performance improvements to enhance your analytics experience.

   Enhanced security and privacy controls

  

  We’ve strengthened Matomo’s security framework with several key updates :

  • A new installer timestamp mechanism for on-premise installations creates a secure 72-hour installation window, preventing unauthorised access during setup
  • Enhanced account security features including a “This Wasn’t Me” link in password reset emails and location-based login alerts
  • The new Global List of Query URL parameters feature lets you refine tracking by excluding sensitive or unnecessary parameters from collection

  Tag manager improvements for better efficiency

  

  The Matomo Tag Manager now includes several features to streamline your workflow :

  • New Consent Management Platform (CMP) tags for CookieYes, OneTrust, and Axeptio, simplifying consent tracking implementatio.
  • A new copy feature for containers, tags, and triggers that reduces setup time and ensures consistency across multiple properties
  • Improved management tools for maintaining standardised tracking across websites

  Performance and reliability updates

  We’ve made technical improvements to enhance Matomo’s performance :

  • Full PHP 8.4 compatibility for improved performance and reliability
  • Optimised archiving processes including smarter handling of recent data
  • New recovery options for interrupted archiving processes
  • Specific improvements for TiDB compatibility, enhancing database performance for users of this engine

  Important to note : This release does not require any major database upgrade, making it easier to implement these improvements.

  Looking forward to 2025

  As we prepare to enter a new year, these updates reflect our ongoing commitment to providing privacy-focused analytics. We’re grateful to all our community contributors who have helped make this release possible. Special thanks to the Matomo community for their contributions to this release.

  Ready to explore these new features ? Update to Matomo 5.2.0 today and start the new year with enhanced security, efficiency, and control over your analytics data.

  From all of us at Matomo, thank you for being part of our journey. Here’s to another year of protecting privacy and empowering insights together !

  ---

  For a detailed overview of all changes and improvements, see our complete release notes or join the discussion in our community forums. If you’d like to contribute to making Matomo even better, learn more about getting involved with our open-source project.