[FFmpeg-trac] #4902(undetermined:new): No moving of the moov atom when fragmenting

FFmpeg trac at avcodec.org
Fri Oct 2 16:05:54 CEST 2015


#4902: No moving of the moov atom when fragmenting
-------------------------------------+-------------------------------------
             Reporter:  alan1523     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I am attempting to use the movflag faststart on a framgmented mp4.

 I am not sure if this is a supported workflow.

 When I attempt to combine a fragment call and the faststart movflag the
 second pass to move the moov atom does not appear to be called.

 -----

 bash-3.2$ /Volumes/storage/ffmpeg/2_8/ffmpeg -y -i
 "/Volumes/storage/rendertemp/in/input.mp4" -movflags faststart
 -frag_duration 1000 -codec:v libx264 -profile:v baseline -pix_fmt yuv420p
 -b:v 500k -codec:a aac -b:a 96k -strict -2 -s 426x240 -threads 0
 "/Volumes/storage/rendertemp/out/output.mp4"
 ffmpeg version N-75833-g9e9d731-tessus Copyright (c) 2000-2015 the FFmpeg
 developers
   built with Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM
 3.5svn)
   configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --as=yasm
 --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl
 --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm
 --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb
 --enable-libopencore-amrwb --enable-libopus --enable-libschroedinger
 --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab
 --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-
 libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-
 libxavs --enable-libxvid --enable-libzmq --enable-version3 --disable-
 ffplay --disable-indev=qtkit --disable-indev=x11grab_xcb
   libavutil      55.  2.100 / 55.  2.100
   libavcodec     57.  3.100 / 57.  3.100
   libavformat    57.  2.100 / 57.  2.100
   libavdevice    57.  0.100 / 57.  0.100
   libavfilter     6.  9.100 /  6.  9.100
   libswscale      4.  0.100 /  4.  0.100
   libswresample   2.  0.100 /  2.  0.100
   libpostproc    54.  0.100 / 54.  0.100
 Guessed Channel Layout for  Input Stream #0.1 : stereo
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 '/Volumes/storage/rendertemp/in/input.mp4':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2014-06-26 18:57:18
   Duration: 00:00:10.00, start: 0.000000, bitrate: 36344 kb/s
     Stream #0:0(eng): Video: prores (apch / 0x68637061),
 yuv422p10le(bt709), 1920x1080, 34796 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25
 tbr, 25 tbn, 25 tbc (default)
     Metadata:
       creation_time   : 2014-06-26 18:57:18
       handler_name    : Apple Alias Data Handler
       encoder         : Apple ProRes 422 (HQ)
       timecode        : 01:00:00:00
     Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, 2
 channels, s16, 1536 kb/s (default)
     Metadata:
       creation_time   : 2014-06-26 18:57:18
       handler_name    : Apple Alias Data Handler
     Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
     Metadata:
       creation_time   : 2014-06-26 18:57:39
       handler_name    : Apple Alias Data Handler
       timecode        : 01:00:00:00
 [libx264 @ 0x7fa5c980c600] using SAR=640/639
 [libx264 @ 0x7fa5c980c600] using cpu capabilities: MMX2 SSE2Fast SSSE3
 SSE4.2 AVX
 [libx264 @ 0x7fa5c980c600] profile Constrained Baseline, level 2.1
 [libx264 @ 0x7fa5c980c600] 264 - core 146 - H.264/MPEG-4 AVC codec -
 Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=0
 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1
 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0
 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12
 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0
 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250
 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1
 bitrate=500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40
 aq=1:1.00
 Output #0, mp4, to '/Volumes/storage/rendertemp/out/output.mp4':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     encoder         : Lavf57.2.100
     Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021),
 yuv420p, 426x240 [SAR 640:639 DAR 16:9], q=-1--1, 500 kb/s, 25 fps, 12800
 tbn, 25 tbc (default)
     Metadata:
       creation_time   : 2014-06-26 18:57:18
       handler_name    : Apple Alias Data Handler
       timecode        : 01:00:00:00
       encoder         : Lavc57.3.100 libx264
     Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz,
 stereo, fltp, 96 kb/s (default)
     Metadata:
       creation_time   : 2014-06-26 18:57:18
       handler_name    : Apple Alias Data Handler
       encoder         : Lavc57.3.100 aac
 Stream mapping:
   Stream #0:0 -> #0:0 (prores (native) -> h264 (libx264))
   Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (native))
 Press [q] to stop, [?] for help
 frame=   53 fps=0.0 q=0.0 size=       0kB time=00:00:02.94 bitrate=
 0.1kbits/sframe=  106 fps=105 q=10.0 size=     111kB time=00:00:04.94
 bitrate= 182.9kbits/frame=  158 fps=104 q=5.0 size=     228kB
 time=00:00:06.95 bitrate= 268.8kbits/sframe=  210 fps=104 q=2.0 size=
 356kB time=00:00:08.93 bitrate= 326.0kbits/sframe=  250 fps=102 q=-1.0
 Lsize=     599kB time=00:00:10.00 bitrate= 490.1kbits/s
 video:392kB audio:119kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 17.285166%
 [libx264 @ 0x7fa5c980c600] frame I:1     Avg QP:18.29  size:  3102
 [libx264 @ 0x7fa5c980c600] frame P:249   Avg QP: 2.27  size:  1596
 [libx264 @ 0x7fa5c980c600] mb I  I16..4: 84.9%  0.0% 15.1%
 [libx264 @ 0x7fa5c980c600] mb P  I16..4:  0.8%  0.0%  0.3%  P16..4: 28.4%
 0.2%  0.3%  0.0%  0.0%    skip:70.0%
 [libx264 @ 0x7fa5c980c600] final ratefactor: -0.03
 [libx264 @ 0x7fa5c980c600] coded y,uvDC,uvAC intra: 39.9% 60.7% 40.0%
 inter: 13.2% 11.6% 11.3%
 [libx264 @ 0x7fa5c980c600] i16 v,h,dc,p: 76% 20%  4%  0%
 [libx264 @ 0x7fa5c980c600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 26% 24%  7%
 3%  2%  4%  4%  3%
 [libx264 @ 0x7fa5c980c600] i8c dc,h,v,p: 36% 26% 37%  1%
 [libx264 @ 0x7fa5c980c600] ref P L0: 98.2%  0.9%  0.9%
 [libx264 @ 0x7fa5c980c600] kb/s:320.38

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4902>
FFmpeg <https://ffmpeg.org>
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