Step 1: First you must trans-code into standard MEPG-2 :
ffmpeg -i "file 1.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts temp1.ts
Example:
D:\ffmpeg\bin>ffmpeg -i "file 1.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegt
s temp1.ts
ffmpeg version N-84014-g9e6b269 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 6.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --e
nable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --
enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-li
bfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug -
-enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enabl
e-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-li
bsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolam
e --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
--enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable
-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
libavutil 55. 48.100 / 55. 48.100
libavcodec 57. 83.100 / 57. 83.100
libavformat 57. 66.104 / 57. 66.104
libavdevice 57. 3.100 / 57. 3.100
libavfilter 6. 76.100 / 6. 76.100
libswscale 4. 3.101 / 4. 3.101
libswresample 2. 4.100 / 2. 4.100
libpostproc 54. 2.100 / 54. 2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'em lien 1.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf56.40.101
Duration: 00:00:25.15, start: 0.000000, bitrate: 547 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 360x640,
474 kb/s, 28.59 fps, 29.97 tbr, 16k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp,
63 kb/s (default)
Metadata:
handler_name : SoundHandler
Output #0, mpegts, to 'temp1.ts':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.66.104
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 360x640,
q=2-31, 474 kb/s, 28.59 fps, 29.97 tbr, 90k tbn, 16k tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp,
63 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 719 fps=0.0 q=-1.0 Lsize= 1884kB time=00:00:25.15 bitrate= 613.7kbits
/s speed= 786x
video:1457kB audio:194kB subtitle:0kB other streams:0kB global headers:0kB muxin
g overhead: 14.187922%
D:\ffmpeg\bin>ffmpeg -i "file 2.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegt
s temp2.ts
ffmpeg version N-84014-g9e6b269 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 6.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --e
nable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --
enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-li
bfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug -
-enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enabl
e-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-li
bsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolam
e --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
--enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable
-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
libavutil 55. 48.100 / 55. 48.100
libavcodec 57. 83.100 / 57. 83.100
libavformat 57. 66.104 / 57. 66.104
libavdevice 57. 3.100 / 57. 3.100
libavfilter 6. 76.100 / 6. 76.100
libswscale 4. 3.101 / 4. 3.101
libswresample 2. 4.100 / 2. 4.100
libpostproc 54. 2.100 / 54. 2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'em lien 2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : 907341562758589
encoder : Lavf56.40.101
Duration: 00:00:19.57, start: -0.022109, bitrate: 1276 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 720x1280,
1240 kb/s, 24.95 fps, 24.92 tbr, 90k tbn, 49.81 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (HE-AAC) (mp4a / 0x6134706D), 44100 Hz, stereo,
fltp, 47 kb/s (default)
Metadata:
handler_name : SoundHandler
Output #0, mpegts, to 'temp2.ts':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : 907341562758589
encoder : Lavf57.66.104
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 720x1280,
q=2-31, 1240 kb/s, 24.95 fps, 24.92 tbr, 90k tbn, 90k tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (HE-AAC) (mp4a / 0x6134706D), 44100 Hz, stereo,
fltp, 47 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 481 fps=0.0 q=-1.0 Lsize= 3339kB time=00:00:19.31 bitrate=1416.0kbits
/s speed= 690x
video:2920kB audio:114kB subtitle:0kB other streams:0kB global headers:0kB muxin
g overhead: 10.050540%
Step 2: join
ffmpeg -i "concat:temp1.ts|temp2.ts" -c copy -bsf:a aac_adtstoasc output2.mp4
Example:
D:\ffmpeg\bin>ffmpeg -i "concat:temp1.ts|temp2.ts" -c copy -bsf:a aac_adtstoasc
output2.mp4
ffmpeg version N-84014-g9e6b269 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 6.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --e
nable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --
enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-li
bfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug -
-enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enabl
e-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-li
bsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolam
e --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
--enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable
-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
libavutil 55. 48.100 / 55. 48.100
libavcodec 57. 83.100 / 57. 83.100
libavformat 57. 66.104 / 57. 66.104
libavdevice 57. 3.100 / 57. 3.100
libavfilter 6. 76.100 / 6. 76.100
libswscale 4. 3.101 / 4. 3.101
libswresample 2. 4.100 / 2. 4.100
libpostproc 54. 2.100 / 54. 2.100
Input #0, mpegts, from 'concat:temp1.ts|temp2.ts':
Duration: 00:00:19.39, start: 1.400000, bitrate: 2207 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(pro
gressive), 360x640, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
Stream #0:1[0x101](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz,
mono, fltp, 65 kb/s
Output #0, mp4, to 'output2.mp4':
Metadata:
encoder : Lavf57.66.104
Stream #0:0: Video: h264 (Main) ([33][0][0][0] / 0x0021), yuv420p(progressiv
e), 360x640, q=2-31, 29.97 fps, 29.97 tbr, 90k tbn, 90k tbc
Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, mono,
fltp, 65 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[mp4 @ 000000000274c580] Non-monotonous DTS in output stream 0:1; previous: 7096
24, current: 708024; changing to 709625. This may result in incorrect timestamps
in the output file.
[mp4 @ 000000000274c580] Non-monotonous DTS in output stream 0:1; previous: 7096
25, current: 709048; changing to 709626. This may result in incorrect timestamps
in the output file.
frame= 1200 fps=0.0 q=-1.0 Lsize= 4733kB time=00:00:44.49 bitrate= 871.6kbits
/s speed= 947x
video:4381kB audio:308kB subtitle:0kB other streams:0kB global headers:1kB muxin
g overhead: 0.953834%
