[FFmpeg-user] Using the flags -movflags +faststart

[JD]

I played the output file when only about 3 minutes of it had been
transcoded. The file did not play at all.
mplayer was belching out:

Starting playback...
[dvvideo @ 0x7f5461b94540]could not find dv frame profile
Error while decoding frame!
[dvvideo @ 0x7f5461b94540]could not find dv frame profile
Error while decoding frame!
[dvvideo @ 0x7f5461b94540]could not find dv frame profile
Error while decoding frame!
[dvvideo @ 0x7f5461b94540]could not find dv frame profile
Error while decoding frame!
[dvvideo @ 0x7f5461b94540]could not find dv frame profile
Error while decoding frame!
[dvvideo @ 0x7f5461b94540]could not find dv frame profile
Error while decoding frame!

and the video window was all twinkling square pixels.

$ ~/bin/ffmpeg.d/ffmpeg -i video_Z11.mp4 -movflags +faststart -vb 8000k -ab
384k -s 1920x1080 -y video_Z11-1920x1080.mp4
ffmpeg version 3.2.4-static http://johnvansickle.com/ffmpeg/  Copyright (c)
2000-2017 the FFmpeg developers
  built with gcc 5.4.1 (Debian 5.4.1-5) 20170205
  configuration: --enable-gpl --enable-version3 --enable-static
--disable-debug --disable-ffplay --disable-indev=sndio
--disable-outdev=sndio --cc=gcc-5 --enable-fontconfig --enable-frei0r
--enable-gnutls --enable-gray --enable-libass --enable-libfreetype
--enable-libfribidi --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus
--enable-librtmp --enable-libsoxr --enable-libspeex --enable-libtheora
--enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis
--enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265
--enable-libxvid --enable-libzimg
  libavutil      55. 34.101 / 55. 34.101
  libavcodec     57. 64.101 / 57. 64.101
  libavformat    57. 56.101 / 57. 56.101
  libavdevice    57.  1.100 / 57.  1.100
  libavfilter     6. 65.100 /  6. 65.100
  libswscale      4.  2.100 /  4.  2.100
  libswresample   2.  3.100 /  2.  3.100
  libpostproc    54.  1.100 / 54.  1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video_Z11.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    creation_time   : 2016-11-29T13:42:34.000000Z
    encoder         : Lavf56.1.0
  Duration: 02:22:55.48, start: 0.000000, bitrate: 379 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
480x360 [SAR 1:1 DAR 4:3], 246 kb/s, 29.95 fps, 29.97 tbr, 90k tbn, 59.91
tbc (default)
    Metadata:
      creation_time   : 2016-11-29T13:42:34.000000Z
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
stereo, fltp, 125 kb/s (default)
    Metadata:
      creation_time   : 2016-11-29T13:42:34.000000Z
      handler_name    : SoundHandler
[libx264 @ 0x575c240] using SAR=3/4
[libx264 @ 0x575c240] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0x575c240] profile High, level 4.0
[libx264 @ 0x575c240] 264 - core 148 r333 90a61ec - 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=3 lookahead_threads=1
sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0
constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1
weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40
intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=8000 ratetol=1.0
qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'video_Z11-1920x1080.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.56.101
    Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021),
yuv420p, 1920x1080 [SAR 3:4 DAR 4:3], q=-1--1, 8000 kb/s, 29.97 fps, 30k
tbn, 29.97 tbc (default)
    Metadata:
      creation_time   : 2016-11-29T13:42:34.000000Z
      handler_name    : VideoHandler
      encoder         : Lavc57.64.101 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/8000000 buffer size: 0 vbv_delay: -1
    Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz,
stereo, fltp, 384 kb/s (default)
    Metadata:
      creation_time   : 2016-11-29T13:42:34.000000Z
      handler_name    : SoundHandler
      encoder         : Lavc57.64.101 aac
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help