The resulting movie will not play.
To wit:
$ ffplay Cremation_History.mp4
ffplay version 3.4.6 Copyright (c) 2003-2019 the FFmpeg developers
built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-36)
configuration: --prefix=/usr --bindir=/usr/bin
--datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg
--incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man
--arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2
-fexceptions -fstack-protector-strong --param=ssp-buffer-size=4
-grecord-gcc-switches -m64 -mtune=generic' --extra-ldflags='-Wl,-z,relro
' --extra-cflags=' ' --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3
--enable-bzlib --disable-crystalhd --enable-fontconfig --enable-gcrypt
--enable-gnutls --enable-ladspa --enable-libass --enable-libbluray
--enable-libcdio --enable-libdrm --enable-indev=jack
--enable-libfreetype --enable-libfribidi --enable-libgsm
--enable-libmp3lame --enable-nvenc --enable-openal --enable-opencl
--enable-opengl --enable-libopenjpeg --enable-libopus
--disable-encoder=libopus --enable-libpulse --enable-librsvg
--enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis
--enable-libv4l2 --enable-libvidstab --enable-libx264 --enable-libx265
--enable-libxvid --enable-libzvbi --enable-avfilter --enable-avresample
--enable-postproc --enable-pthreads --disable-static --enable-shared
--enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64
--enable-libmfx --enable-runtime-cpudetect
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f30cc000920] moov atom not found0/0
Cremation_History.mp4: Invalid data found when processing input
=================================================
This is how the concatenation was done:
$ /bin/ffmpeg -f concat -i flist -s 1920x1080 -vf
scale=1920x1080,setdar=16/9,setdar=16/9 -b:a 320k -b:v 4000k
Cremation_History.mp4
ffmpeg version 3.4.6 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-36)
configuration: --prefix=/usr --bindir=/usr/bin
--datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg
--incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man
--arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2
-fexceptions -fstack-protector-strong --param=ssp-buffer-size=4
-grecord-gcc-switches -m64 -mtune=generic' --extra-ldflags='-Wl,-z,relro
' --extra-cflags=' ' --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3
--enable-bzlib --disable-crystalhd --enable-fontconfig --enable-gcrypt
--enable-gnutls --enable-ladspa --enable-libass --enable-libbluray
--enable-libcdio --enable-libdrm --enable-indev=jack
--enable-libfreetype --enable-libfribidi --enable-libgsm
--enable-libmp3lame --enable-nvenc --enable-openal --enable-opencl
--enable-opengl --enable-libopenjpeg --enable-libopus
--disable-encoder=libopus --enable-libpulse --enable-librsvg
--enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis
--enable-libv4l2 --enable-libvidstab --enable-libx264 --enable-libx265
--enable-libxvid --enable-libzvbi --enable-avfilter --enable-avresample
--enable-postproc --enable-pthreads --disable-static --enable-shared
--enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64
--enable-libmfx --enable-runtime-cpudetect
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x1859a80] Auto-inserting h264_mp4toannexb
bitstream filter
Input #0, concat, from 'flist':
Duration: N/A, start: 0.000000, bitrate: 402 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 /
0x31637661), yuv420p(tv, bt709), 640x360 [SAR 1:1 DAR 16:9], 306 kb/s,
30 fps, 30 tbr, 15360 tbn, 60 tbc
Metadata:
creation_time : 2019-08-29T19:28:20.000000Z
handler_name :
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
stereo, fltp, 96 kb/s
Metadata:
creation_time : 2019-08-29T19:28:20.000000Z
handler_name :
File 'Cremation_History.mp4' already exists. Overwrite ? [y/N] y
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
[libx264 @ 0x1a67f00] using SAR=1/1
[libx264 @ 0x1a67f00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1
Cache64
[libx264 @ 0x1a67f00] profile High, level 4.0
[libx264 @ 0x1a67f00] 264 - core 148 r2795 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=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=4000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4
ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'Cremation_History.mp4':
Metadata:
encoder : Lavf57.83.100
Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661),
yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 4000 kb/s,
30 fps, 15360 tbn, 30 tbc
Metadata:
creation_time :
handler_name :
encoder : Lavc57.107.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/4000000 buffer size: 0 vbv_delay: -1
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
stereo, fltp, 320 kb/s
Metadata:
creation_time :
handler_name : I
encoder : Lavc57.107.100 aac
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