[FFmpeg-user] -movflags faststart revisited

[PaulYurt]

JD, Can you substitute ffplay for ffmpeg in your tests? This way you can immediately see results. 

Paul Yurt // Media Technologist // 310-439-8009  

On Feb 25, 2017, at 10:28 PM, JD <jd1008 at gmail.com> wrote:

I retried to use this flag as it was indicated in a previous response by a
user.
Sorry that I was unable to continue on the original thread, because the
gmail web
interface deletes original message sent to this list by the OP, when the OP
deletes the
response from the list.

So, even though I corrected the usage of the flag, I am still unable to
play the output
file before ffmpeg finishes the transcoding :( :(

$ ~/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 @ 0x5a3c240] using SAR=3/4
[libx264 @ 0x5a3c240] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0x5a3c240] profile High, level 4.0
[libx264 @ 0x5a3c240] 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
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