[FFmpeg-trac] #6888(avformat:new): HLS segmenter doesn't cut .m4s files at its expected duration

FFmpeg trac at avcodec.org
Thu Dec 7 21:22:49 EET 2017


#6888: HLS segmenter doesn't cut .m4s files at its expected duration
------------------------------------+------------------------------------
             Reporter:  beloko      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  HLS         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+------------------------------------

Comment (by beloko):

 No problem :)
 I just synchronised my local built repository with the latest GIT-Master
 repository.

 And here is the verbose log of my FFMPEG command line with this fresh
 version :

 {{{
 C:\Users\Beloko\Desktop\FFMPEG>ffmpeg.exe -i
 "http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_1080p_30fps_normal.mp4"
 -loglevel verbose -threads 0 -an -sn -vcodec libx264 -force_key_frames
 "expr:gte(t,n_forced*4)" -sc_threshold 0 -r 25 -f hls -hls_time 4
 -hls_list_size 99999 -start_number 1 -hls_segment_type fmp4
 -hls_fmp4_init_filename "C:\inetpub\wwwroot\fmp4_x264\init.mp4" -t 30
 "C:\inetpub\wwwroot\fmp4_x264\big_bunny.m3u8"
 ffmpeg version N-89404-gdc7d5f9-Reino Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 [h264 @ 000001cf0ea60240] Reinit context to 1920x1088, pix_fmt: yuv420p
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_1080p_30fps_normal.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 1
     compatible_brands: isomavc1
     creation_time   : 2013-12-16T17:44:39.000000Z
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
     composer        : Sacha Goedegebure
   Duration: 00:10:34.53, start: 0.000000, bitrate: 3481 kb/s
     Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 /
 0x31637661), yuv420p(left), 1920x1080 (1920x1088) [SAR 1:1 DAR 16:9], 2998
 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc (default)
     Metadata:
       creation_time   : 2013-12-16T17:44:39.000000Z
       handler_name    : GPAC ISO Video Handler
     Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 48000 Hz, stereo,
 s16p, 160 kb/s (default)
     Metadata:
       creation_time   : 2013-12-16T17:44:42.000000Z
       handler_name    : GPAC ISO Audio Handler
     Stream #0:2(und): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side),
 fltp, 320 kb/s (default)
     Metadata:
       creation_time   : 2013-12-16T17:44:42.000000Z
       handler_name    : GPAC ISO Audio Handler
     Side data:
       audio service type: main
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
 Press [q] to stop, [?] for help
 [h264 @ 000001cf0ea4ab00] Reinit context to 1920x1088, pix_fmt: yuv420p
 [graph 0 input from stream 0:0 @ 000001cf10a1eb60] w:1920 h:1080
 pixfmt:yuv420p tb:1/30000 fr:30/1 sar:1/1 sws_param:flags=2
 [libx264 @ 000001cf10d10fa0] using SAR=1/1
 [libx264 @ 000001cf10d10fa0] using cpu capabilities: MMX2 SSE2Fast SSSE3
 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
 [libx264 @ 000001cf10d10fa0] profile High, level 4.0
 [libx264 @ 000001cf10d10fa0] 264 - core 148 r2795M aaa9aa8 - H.264/MPEG-4
 AVC codec - Copyleft 2003-2017 - 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=12
 lookahead_threads=2 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=0 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
 [hls @ 000001cf10d092a0] Opening 'C:\inetpub\wwwroot\fmp4_x264\init.mp4'
 for writing
 Output #0, hls, to 'C:\inetpub\wwwroot\fmp4_x264\big_bunny.m3u8':
   Metadata:
     major_brand     : isom
     minor_version   : 1
     compatible_brands: isomavc1
     composer        : Sacha Goedegebure
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
     encoder         : Lavf58.2.103
     Stream #0:0(und): Video: h264 (libx264), 1 reference frame,
 yuv420p(left), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn,
 25 tbc (default)
     Metadata:
       creation_time   : 2013-12-16T17:44:39.000000Z
       handler_name    : GPAC ISO Video Handler
       encoder         : Lavc58.6.103 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
 *** 2 dup!
 Past duration 0.666664 too large
 Past duration 0.833321 too large
 Past duration 0.999992 too large
 *** dropping frame 13 from stream 0 at ts 11
 *** dropping frame 18 from stream 0 at ts 16
 *** dropping frame 23 from stream 0 at ts 21
 *** dropping frame 28 from stream 0 at ts 26
 *** dropping frame 33 from stream 0 at ts 31
 *** dropping frame 38 from stream 0 at ts 36
 *** dropping frame 43 from stream 0 at ts 41
 *** dropping frame 48 from stream 0 at ts 46
 *** dropping frame 53 from stream 0 at ts 51
 *** dropping frame 58 from stream 0 at ts 56
 *** dropping frame 63 from stream 0 at ts 61
 *** dropping frame 68 from stream 0 at ts 66
 *** dropping frame 73 from stream 0 at ts 7100:00.56 bitrate=N/A dup=2
 drop=12 speed=1.12x
 *** dropping frame 78 from stream 0 at ts 76
 *** dropping frame 83 from stream 0 at ts 81
 *** dropping frame 88 from stream 0 at ts 86
 *** dropping frame 93 from stream 0 at ts 91
 *** dropping frame 98 from stream 0 at ts 96
 *** dropping frame 103 from stream 0 at ts 101
 *** dropping frame 108 from stream 0 at ts 106
 *** dropping frame 113 from stream 0 at ts 111
 *** dropping frame 118 from stream 0 at ts 116
 *** dropping frame 123 from stream 0 at ts 121
 *** dropping frame 128 from stream 0 at ts 126
 *** dropping frame 133 from stream 0 at ts 131:02.96 bitrate=N/A dup=2
 drop=24 speed=2.91x
 *** dropping frame 138 from stream 0 at ts 136
 *** dropping frame 143 from stream 0 at ts 141
 *** dropping frame 148 from stream 0 at ts 146
 *** dropping frame 153 from stream 0 at ts 151
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny1.m4s' for writing
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny.m3u8.tmp' for writing
 EXT-X-MEDIA-SEQUENCE:1
 *** dropping frame 158 from stream 0 at ts 156
 *** dropping frame 163 from stream 0 at ts 161
 *** dropping frame 168 from stream 0 at ts 166
 *** dropping frame 173 from stream 0 at ts 171:04.44 bitrate=N/A dup=2
 drop=32 speed=2.75x
 *** dropping frame 178 from stream 0 at ts 176
 *** dropping frame 183 from stream 0 at ts 181
 *** dropping frame 188 from stream 0 at ts 186
 *** dropping frame 193 from stream 0 at ts 191:05.32 bitrate=N/A dup=2
 drop=36 speed= 2.5x
 *** dropping frame 198 from stream 0 at ts 196
 *** dropping frame 203 from stream 0 at ts 201
 *** dropping frame 208 from stream 0 at ts 206:05.84 bitrate=N/A dup=2
 drop=39 speed=2.12x
 *** dropping frame 213 from stream 0 at ts 211
 *** dropping frame 218 from stream 0 at ts 216:06.36 bitrate=N/A dup=2
 drop=41 speed=1.93x
 *** dropping frame 223 from stream 0 at ts 221
 *** dropping frame 228 from stream 0 at ts 226
 *** dropping frame 233 from stream 0 at ts 231:06.96 bitrate=N/A dup=2
 drop=44 speed=1.81x
 *** dropping frame 238 from stream 0 at ts 236
 *** dropping frame 243 from stream 0 at ts 241
 *** dropping frame 248 from stream 0 at ts 246:07.48 bitrate=N/A dup=2
 drop=47 speed=1.71x
 *** dropping frame 253 from stream 0 at ts 251
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny2.m4s' for writing
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny.m3u8.tmp' for writing
 EXT-X-MEDIA-SEQUENCE:1
 *** dropping frame 258 from stream 0 at ts 256
 *** dropping frame 263 from stream 0 at ts 261:08.16 bitrate=N/A dup=2
 drop=50 speed=1.65x
 *** dropping frame 268 from stream 0 at ts 266
 *** dropping frame 273 from stream 0 at ts 271
 *** dropping frame 278 from stream 0 at ts 276:08.72 bitrate=N/A dup=2
 drop=53 speed=1.59x
 *** dropping frame 283 from stream 0 at ts 281
 *** dropping frame 288 from stream 0 at ts 286
 *** dropping frame 293 from stream 0 at ts 291:09.36 bitrate=N/A dup=2
 drop=56 speed=1.56x
 *** dropping frame 298 from stream 0 at ts 296
 *** dropping frame 303 from stream 0 at ts 301
 *** dropping frame 308 from stream 0 at ts 306
 *** dropping frame 313 from stream 0 at ts 311:10.04 bitrate=N/A dup=2
 drop=60 speed=1.54x
 *** dropping frame 318 from stream 0 at ts 316
 *** dropping frame 323 from stream 0 at ts 321:10.56 bitrate=N/A dup=2
 drop=62 speed= 1.5x
 *** dropping frame 328 from stream 0 at ts 326
 *** dropping frame 333 from stream 0 at ts 331
 *** dropping frame 338 from stream 0 at ts 336:11.08 bitrate=N/A dup=2
 drop=65 speed=1.45x
 *** dropping frame 343 from stream 0 at ts 341
 *** dropping frame 348 from stream 0 at ts 346
 *** dropping frame 353 from stream 0 at ts 351
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny3.m4s' for writing
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny.m3u8.tmp' for writing
 EXT-X-MEDIA-SEQUENCE:1
 *** dropping frame 358 from stream 0 at ts 356
 *** dropping frame 363 from stream 0 at ts 361
 *** dropping frame 368 from stream 0 at ts 366
 *** dropping frame 373 from stream 0 at ts 371:12.48 bitrate=N/A dup=2
 drop=72 speed=1.44x
 *** dropping frame 378 from stream 0 at ts 376
 *** dropping frame 383 from stream 0 at ts 381
 *** dropping frame 388 from stream 0 at ts 386
 *** dropping frame 393 from stream 0 at ts 391:13.36 bitrate=N/A dup=2
 drop=76 speed=1.45x
 *** dropping frame 398 from stream 0 at ts 396
 *** dropping frame 403 from stream 0 at ts 401:13.76 bitrate=N/A dup=2
 drop=78 speed=1.39x
 *** dropping frame 408 from stream 0 at ts 406
 *** dropping frame 413 from stream 0 at ts 411
 *** dropping frame 418 from stream 0 at ts 416
 *** dropping frame 423 from stream 0 at ts 421:14.56 bitrate=N/A dup=2
 drop=82 speed= 1.4x
 *** dropping frame 428 from stream 0 at ts 426
 *** dropping frame 433 from stream 0 at ts 431
 *** dropping frame 438 from stream 0 at ts 436
 *** dropping frame 443 from stream 0 at ts 441
 *** dropping frame 448 from stream 0 at ts 446:15.56 bitrate=N/A dup=2
 drop=87 speed=1.42x
 *** dropping frame 453 from stream 0 at ts 451
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny4.m4s' for writing
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny.m3u8.tmp' for writing
 EXT-X-MEDIA-SEQUENCE:1
 *** dropping frame 458 from stream 0 at ts 456
 *** dropping frame 463 from stream 0 at ts 461
 *** dropping frame 468 from stream 0 at ts 466:16.32 bitrate=N/A dup=2
 drop=91 speed=1.41x
 *** dropping frame 473 from stream 0 at ts 471
 *** dropping frame 478 from stream 0 at ts 476
 *** dropping frame 483 from stream 0 at ts 481
 *** dropping frame 488 from stream 0 at ts 486
 *** dropping frame 493 from stream 0 at ts 491:17.28 bitrate=N/A dup=2
 drop=96 speed=1.41x
 *** dropping frame 498 from stream 0 at ts 496
 *** dropping frame 503 from stream 0 at ts 501
 *** dropping frame 508 from stream 0 at ts 506
 *** dropping frame 513 from stream 0 at ts 511
 *** dropping frame 518 from stream 0 at ts 516:18.24 bitrate=N/A dup=2
 drop=101 speed=1.41x
 *** dropping frame 523 from stream 0 at ts 521
 *** dropping frame 528 from stream 0 at ts 526
 *** dropping frame 533 from stream 0 at ts 531
 *** dropping frame 538 from stream 0 at ts 536:19.16 bitrate=N/A dup=2
 drop=105 speed=1.41x
 *** dropping frame 543 from stream 0 at ts 541
 *** dropping frame 548 from stream 0 at ts 546
 *** dropping frame 553 from stream 0 at ts 551
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny5.m4s' for writing
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny.m3u8.tmp' for writing
 EXT-X-MEDIA-SEQUENCE:1
 *** dropping frame 558 from stream 0 at ts 556
 *** dropping frame 563 from stream 0 at ts 561:20.16 bitrate=N/A dup=2
 drop=110 speed=1.42x
 *** dropping frame 568 from stream 0 at ts 566
 *** dropping frame 573 from stream 0 at ts 571
 *** dropping frame 578 from stream 0 at ts 576
 *** dropping frame 583 from stream 0 at ts 581
 *** dropping frame 588 from stream 0 at ts 586
 *** dropping frame 593 from stream 0 at ts 591
 *** dropping frame 598 from stream 0 at ts 596
 *** dropping frame 603 from stream 0 at ts 601:21.72 bitrate=N/A dup=2
 drop=118 speed=1.47x
 *** dropping frame 608 from stream 0 at ts 606
 *** dropping frame 613 from stream 0 at ts 611
 *** dropping frame 618 from stream 0 at ts 616
 *** dropping frame 623 from stream 0 at ts 621
 *** dropping frame 628 from stream 0 at ts 626
 *** dropping frame 633 from stream 0 at ts 631:22.88 bitrate=N/A dup=2
 drop=124 speed= 1.5x
 *** dropping frame 638 from stream 0 at ts 636
 *** dropping frame 643 from stream 0 at ts 641
 *** dropping frame 648 from stream 0 at ts 646
 *** dropping frame 653 from stream 0 at ts 651
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny6.m4s' for writing
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny.m3u8.tmp' for writing
 EXT-X-MEDIA-SEQUENCE:1
 *** dropping frame 658 from stream 0 at ts 656:23.96 bitrate=N/A dup=2
 drop=129 speed= 1.5x
 *** dropping frame 663 from stream 0 at ts 661
 *** dropping frame 668 from stream 0 at ts 666
 *** dropping frame 673 from stream 0 at ts 671
 *** dropping frame 678 from stream 0 at ts 676
 *** dropping frame 683 from stream 0 at ts 681:24.92 bitrate=N/A dup=2
 drop=134 speed=1.45x
 *** dropping frame 688 from stream 0 at ts 686
 *** dropping frame 693 from stream 0 at ts 691
 *** dropping frame 698 from stream 0 at ts 696:25.48 bitrate=N/A dup=2
 drop=137 speed=1.44x
 *** dropping frame 703 from stream 0 at ts 701
 *** dropping frame 708 from stream 0 at ts 706
 *** dropping frame 713 from stream 0 at ts 711
 *** dropping frame 718 from stream 0 at ts 716:26.24 bitrate=N/A dup=2
 drop=141 speed=1.43x
 *** dropping frame 723 from stream 0 at ts 721
 *** dropping frame 728 from stream 0 at ts 726
 *** dropping frame 733 from stream 0 at ts 731:26.92 bitrate=N/A dup=2
 drop=144 speed=1.43x
 *** dropping frame 738 from stream 0 at ts 736
 *** dropping frame 743 from stream 0 at ts 741
 *** dropping frame 748 from stream 0 at ts 746
 No more output streams to write to, finishing.:27.64 bitrate=N/A dup=2
 drop=148 speed=1.43x
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny7.m4s' for writing
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny.m3u8.tmp' for writing
 EXT-X-MEDIA-SEQUENCE:1
 [hls @ 000001cf10d092a0] Opening
 'C:\inetpub\wwwroot\fmp4_x264\big_bunny.m3u8.tmp' for writing
 EXT-X-MEDIA-SEQUENCE:1
 frame=  750 fps= 36 q=-1.0 Lsize=N/A time=00:00:29.88 bitrate=N/A dup=2
 drop=148 speed=1.45x
 video:12174kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 Input file #0
 (http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_1080p_30fps_normal.mp4):
   Input stream #0:0 (video): 907 packets read (11565677 bytes); 898 frames
 decoded;
   Input stream #0:1 (audio): 21 packets read (10080 bytes);
   Input stream #0:2 (audio): 1 packets read (1280 bytes);
   Total: 929 packets (11577037 bytes) demuxed
 Output file #0 (C:\inetpub\wwwroot\fmp4_x264\big_bunny.m3u8):
   Output stream #0:0 (video): 750 frames encoded; 750 packets muxed
 (12466439 bytes);
   Total: 750 packets (12466439 bytes) muxed
 [libx264 @ 000001cf10d10fa0] frame I:8     Avg QP:14.94  size:240506
 [libx264 @ 000001cf10d10fa0] frame P:222   Avg QP:19.99  size: 37867
 [libx264 @ 000001cf10d10fa0] frame B:520   Avg QP:24.33  size:  4106
 [libx264 @ 000001cf10d10fa0] consecutive B-frames:  3.6%  8.5% 10.0% 77.9%
 [libx264 @ 000001cf10d10fa0] mb I  I16..4: 33.7% 45.8% 20.5%
 [libx264 @ 000001cf10d10fa0] mb P  I16..4:  3.1%  7.9%  0.9%  P16..4:
 23.0%  8.3%  6.6%  0.0%  0.0%    skip:50.2%
 [libx264 @ 000001cf10d10fa0] mb B  I16..4:  0.5%  0.4%  0.0%  B16..8:
 23.8%  1.4%  0.4%  direct: 1.4%  skip:72.1%  L0:45.5% L1:49.5% BI: 5.1%
 [libx264 @ 000001cf10d10fa0] 8x8 transform intra:59.2% inter:63.1%
 [libx264 @ 000001cf10d10fa0] coded y,uvDC,uvAC intra: 30.3% 42.8% 23.4%
 inter: 5.7% 7.4% 1.7%
 [libx264 @ 000001cf10d10fa0] i16 v,h,dc,p: 66% 19%  6%  9%
 [libx264 @ 000001cf10d10fa0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 14% 32%
 3%  4%  4%  5%  4%  4%
 [libx264 @ 000001cf10d10fa0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 15% 12%
 7%  9%  9%  9%  8%  9%
 [libx264 @ 000001cf10d10fa0] i8c dc,h,v,p: 63% 19% 13%  6%
 [libx264 @ 000001cf10d10fa0] Weighted P-Frames: Y:8.6% UV:8.1%
 [libx264 @ 000001cf10d10fa0] ref P L0: 66.4% 12.6% 13.8%  7.2%  0.0%
 [libx264 @ 000001cf10d10fa0] ref B L0: 86.9% 10.8%  2.2%
 [libx264 @ 000001cf10d10fa0] ref B L1: 95.2%  4.8%
 [libx264 @ 000001cf10d10fa0] kb/s:3324.20
 }}}

 The .m3u8 playlist content is :

 {{{
 C:\Users\Beloko\Desktop\FFMPEG>type
 C:\inetpub\wwwroot\fmp4_x264\big_bunny.m3u8
 #EXTM3U
 #EXT-X-VERSION:7
 #EXT-X-TARGETDURATION:4
 #EXT-X-MEDIA-SEQUENCE:1
 #EXT-X-MAP:URI="init.mp4"
 #EXTINF:4.000000,
 big_bunny1.m4s
 #EXTINF:4.000000,
 big_bunny2.m4s
 #EXTINF:4.000000,
 big_bunny3.m4s
 #EXTINF:4.000000,
 big_bunny4.m4s
 #EXTINF:4.000000,
 big_bunny5.m4s
 #EXTINF:4.000000,
 big_bunny6.m4s
 #EXTINF:2.000000,
 big_bunny7.m4s
 #EXT-X-ENDLIST
 }}}

 The full duration for the sum of the seven .m4s files is : 4 + 4 + 4 + 4 +
 4 + 4 + 2 = 26 seconds.
 It misses 4 seconds to get 30 seconds as expected by the ''-t 30''
 parameter.

 ----

 Then to be able to probe each .m4s file we have to glue the init.mp4
 (video header) with each .m4s (video data stream). Like this :


 {{{
 C:\Users\Beloko\Desktop\FFMPEG>ffmpeg.exe -i
 "concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny1.m4s"
 -codec copy C:\inetpub\wwwroot\fmp4_x264\concated1.mp4
 ffmpeg version N-89404-gdc7d5f9-Reino Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny1.m4s':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:08.08, start: 0.160000, bitrate: 1092 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 1089 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler
 Output #0, mp4, to 'C:\inetpub\wwwroot\fmp4_x264\concated1.mp4':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     genre           : Animation
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     encoder         : Lavf58.2.103
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 1089 kb/s, 25 fps, 25 tbr, 12800
 tbn, 12800 tbc (default)
     Metadata:
       handler_name    : VideoHandler
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 frame=  200 fps=0.0 q=-1.0 Lsize=    1078kB time=00:00:07.88
 bitrate=1120.5kbits/s speed=3.97e+003x
 video:1074kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.317772%

 C:\Users\Beloko\Desktop\FFMPEG>ffmpeg.exe -i
 "concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny2.m4s"
 -codec copy C:\inetpub\wwwroot\fmp4_x264\concated2.mp4
 ffmpeg version N-89404-gdc7d5f9-Reino Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny2.m4s':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:12.08, start: 8.160000, bitrate: 1717 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 1716 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler
 Output #0, mp4, to 'C:\inetpub\wwwroot\fmp4_x264\concated2.mp4':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     genre           : Animation
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     encoder         : Lavf58.2.103
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 1716 kb/s, 25 fps, 25 tbr, 12800
 tbn, 12800 tbc (default)
     Metadata:
       handler_name    : VideoHandler
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 frame=  100 fps=0.0 q=-1.0 Lsize=    2533kB time=00:00:03.88
 bitrate=5348.4kbits/s speed= 318x
 video:2531kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.088590%

 C:\Users\Beloko\Desktop\FFMPEG>ffmpeg.exe -i
 "concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny3.m4s"
 -codec copy C:\inetpub\wwwroot\fmp4_x264\concated3.mp4
 ffmpeg version N-89404-gdc7d5f9-Reino Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny3.m4s':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:16.08, start: 12.160000, bitrate: 1333 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 1332 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler
 Output #0, mp4, to 'C:\inetpub\wwwroot\fmp4_x264\concated3.mp4':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     genre           : Animation
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     encoder         : Lavf58.2.103
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 1332 kb/s, 25 fps, 25 tbr, 12800
 tbn, 12800 tbc (default)
     Metadata:
       handler_name    : VideoHandler
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 frame=  100 fps=0.0 q=-1.0 Lsize=    2617kB time=00:00:03.88
 bitrate=5525.7kbits/s speed= 561x
 video:2615kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.088286%

 C:\Users\Beloko\Desktop\FFMPEG>ffmpeg.exe -i
 "concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny4.m4s"
 -codec copy C:\inetpub\wwwroot\fmp4_x264\concated4.mp4
 ffmpeg version N-89404-gdc7d5f9-Reino Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny4.m4s':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:20.08, start: 16.160000, bitrate: 957 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 956 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler
 Output #0, mp4, to 'C:\inetpub\wwwroot\fmp4_x264\concated4.mp4':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     genre           : Animation
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     encoder         : Lavf58.2.103
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 956 kb/s, 25 fps, 25 tbr, 12800 tbn,
 12800 tbc (default)
     Metadata:
       handler_name    : VideoHandler
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 frame=  100 fps=0.0 q=-1.0 Lsize=    2346kB time=00:00:03.88
 bitrate=4954.0kbits/s speed=1.33e+003x
 video:2344kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.098818%

 C:\Users\Beloko\Desktop\FFMPEG>ffmpeg.exe -i
 "concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny5.m4s"
 -codec copy C:\inetpub\wwwroot\fmp4_x264\concated5.mp4
 ffmpeg version N-89404-gdc7d5f9-Reino Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny5.m4s':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:24.08, start: 20.160000, bitrate: 362 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 361 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler
 Output #0, mp4, to 'C:\inetpub\wwwroot\fmp4_x264\concated5.mp4':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     genre           : Animation
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     encoder         : Lavf58.2.103
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 361 kb/s, 25 fps, 25 tbr, 12800 tbn,
 12800 tbc (default)
     Metadata:
       handler_name    : VideoHandler
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 frame=  100 fps=0.0 q=-1.0 Lsize=    1066kB time=00:00:03.88
 bitrate=2251.2kbits/s speed=1.2e+003x
 video:1064kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.214036%

 C:\Users\Beloko\Desktop\FFMPEG>ffmpeg.exe -i
 "concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny6.m4s"
 -codec copy C:\inetpub\wwwroot\fmp4_x264\concated6.mp4
 ffmpeg version N-89404-gdc7d5f9-Reino Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny6.m4s':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:28.08, start: 24.160000, bitrate: 337 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 336 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler
 Output #0, mp4, to 'C:\inetpub\wwwroot\fmp4_x264\concated6.mp4':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     genre           : Animation
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     encoder         : Lavf58.2.103
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 336 kb/s, 25 fps, 25 tbr, 12800 tbn,
 12800 tbc (default)
     Metadata:
       handler_name    : VideoHandler
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 frame=  100 fps=0.0 q=-1.0 Lsize=    1156kB time=00:00:03.88
 bitrate=2440.7kbits/s speed= 658x
 video:1154kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.196028%

 C:\Users\Beloko\Desktop\FFMPEG>ffmpeg.exe -i
 "concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny7.m4s"
 -codec copy C:\inetpub\wwwroot\fmp4_x264\concated7.mp4
 ffmpeg version N-89404-gdc7d5f9-Reino Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'concat:C:\inetpub\wwwroot\fmp4_x264\init.mp4|C:\inetpub\wwwroot\fmp4_x264\big_bunny7.m4s':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:30.08, start: 28.160000, bitrate: 379 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 379 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler
 Output #0, mp4, to 'C:\inetpub\wwwroot\fmp4_x264\concated7.mp4':
   Metadata:
     major_brand     : iso5
     minor_version   : 512
     compatible_brands: iso6mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     genre           : Animation
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     encoder         : Lavf58.2.103
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 379 kb/s, 25 fps, 25 tbr, 12800 tbn,
 12800 tbc (default)
     Metadata:
       handler_name    : VideoHandler
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 frame=   50 fps=0.0 q=-1.0 Lsize=    1394kB time=00:00:01.88
 bitrate=6073.3kbits/s speed= 549x
 video:1392kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.122901%
 }}}

 I did it for all .m4s files.

 So I get 7 result files in my directory :
 . concated1.mp4 (as init.mp4 + big_bunny1.m4s)
 . concated2.mp4 (as init.mp4 + big_bunny2.m4s)
 . concated3.mp4 (as init.mp4 + big_bunny3.m4s)
 . concated4.mp4 (as init.mp4 + big_bunny4.m4s)
 . concated5.mp4 (as init.mp4 + big_bunny5.m4s)
 . concated6.mp4 (as init.mp4 + big_bunny6.m4s)
 . concated7.mp4 (as init.mp4 + big_bunny7.m4s)


 ----

 Now here is the FFPROBE diagnostic for the seven files I just concatened :

 {{{
 C:\Users\Beloko\Desktop\FFMPEG>ffprobe
 C:\inetpub\wwwroot\fmp4_x264\concated1.mp4
 ffprobe version N-89404-gdc7d5f9-Reino Copyright (c) 2007-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'C:\inetpub\wwwroot\fmp4_x264\concated1.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:08.00, start: 0.000000, bitrate: 1103 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 1100 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler

 C:\Users\Beloko\Desktop\FFMPEG>ffprobe
 C:\inetpub\wwwroot\fmp4_x264\concated2.mp4
 ffprobe version N-89404-gdc7d5f9-Reino Copyright (c) 2007-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'C:\inetpub\wwwroot\fmp4_x264\concated2.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:04.00, start: 0.000000, bitrate: 5188 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 5183 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler

 C:\Users\Beloko\Desktop\FFMPEG>ffprobe
 C:\inetpub\wwwroot\fmp4_x264\concated3.mp4
 ffprobe version N-89404-gdc7d5f9-Reino Copyright (c) 2007-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'C:\inetpub\wwwroot\fmp4_x264\concated3.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:04.00, start: 0.000000, bitrate: 5360 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 5355 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler

 C:\Users\Beloko\Desktop\FFMPEG>ffprobe
 C:\inetpub\wwwroot\fmp4_x264\concated4.mp4
 ffprobe version N-89404-gdc7d5f9-Reino Copyright (c) 2007-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'C:\inetpub\wwwroot\fmp4_x264\concated4.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:04.00, start: 0.000000, bitrate: 4805 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 4800 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler

 C:\Users\Beloko\Desktop\FFMPEG>ffprobe
 C:\inetpub\wwwroot\fmp4_x264\concated5.mp4
 ffprobe version N-89404-gdc7d5f9-Reino Copyright (c) 2007-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'C:\inetpub\wwwroot\fmp4_x264\concated5.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:04.00, start: 0.000000, bitrate: 2183 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 2179 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler

 C:\Users\Beloko\Desktop\FFMPEG>ffprobe
 C:\inetpub\wwwroot\fmp4_x264\concated6.mp4
 ffprobe version N-89404-gdc7d5f9-Reino Copyright (c) 2007-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'C:\inetpub\wwwroot\fmp4_x264\concated6.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:04.00, start: 0.000000, bitrate: 2367 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 2362 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler

 C:\Users\Beloko\Desktop\FFMPEG>ffprobe
 C:\inetpub\wwwroot\fmp4_x264\concated7.mp4
 ffprobe version N-89404-gdc7d5f9-Reino Copyright (c) 2007-2017 the FFmpeg
 developers
   built with gcc 7.1.0 (GCC)
   configuration: --arch=x86_64 --target-os=mingw32 --cross-
 prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
 --pkg-config=pkg-config --pkg-config-flags=--static --extra-version=Reino
 --enable-gray --enable-version3 --disable-debug --disable-doc --disable-
 htmlpages --disable-manpages --disable-podpages --disable-txtpages
 --disable-w32threads --enable-fontconfig --enable-gmp --enable-gnutls
 --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
 --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme
 --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
 --enable-libwebp --enable-libzimg --enable-libzvbi --extra-
 cflags=-DLIBTWOLAME_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-
 cflags=-DCACA_STATIC --enable-gpl --enable-avisynth --enable-frei0r
 --enable-filter=frei0r --enable-librubberband --enable-libvidstab
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libmfx --enable-avresample --extra-cflags='-mtune=generic'
 --extra-cflags=-O3 --enable-static --disable-shared
 --prefix=/home/beloko/FFMpeg_Builder/sandbox/cross_compilers/mingw-w64-x86_64/x86_64-w64-mingw32
 --enable-nonfree --enable-decklink --enable-libfdk-aac
   libavutil      56.  5.100 / 56.  5.100
   libavcodec     58.  6.103 / 58.  6.103
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  7.100 /  7.  7.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'C:\inetpub\wwwroot\fmp4_x264\concated7.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     composer        : Sacha Goedegebure
     encoder         : Lavf58.2.103
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
   Duration: 00:00:02.00, start: 0.000000, bitrate: 5709 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 5702 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
 (default)
     Metadata:
       handler_name    : VideoHandler
 }}}

 We can see :
 . concated1.mp4 duration is 00:00:08.00
 . concated2.mp4 duration is 00:00:04.00
 . concated3.mp4 duration is 00:00:04.00
 . concated4.mp4 duration is 00:00:04.00
 . concated5.mp4 duration is 00:00:04.00
 . concated6.mp4 duration is 00:00:04.00
 . concated7.mp4 duration is 00:00:02.00

 The full duration of all segmented files is 30 seconds as expected. But
 the first segment is 8 seconds instead of 4 seconds as expected by the
 ''-hls_time 4'' parameter. And as set in the .m3u8 file.


 ----

 I can provide more data and log files for all your needs.
 Just give me the parameter or the command line you're wainting for.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6888#comment:7>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


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